LABORATORY CORP OF AMERICA HOLDINGS
S-3/A, 1997-05-06
MEDICAL LABORATORIES
Previous: BEACON PROPERTIES CORP, SC 13D, 1997-05-06
Next: LINCOLN NATIONAL FLEXIBLE PREMIUM VARIABLE LIFE ACCOUNT K, 497J, 1997-05-06



<PAGE>
 
      
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MAY 6, 1997     
 
                                                     REGISTRATION NO. 333-22427
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                      SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549
 
                                ---------------
                                
                             AMENDMENT NO. 2     
                                      TO
                                   FORM S-3
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                                ---------------
 
                  LABORATORY CORPORATION OF AMERICA HOLDINGS
            (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
             DELAWARE                                13-3757370
 (STATE OR OTHER JURISDICTION OF        (I.R.S. EMPLOYER IDENTIFICATION NO.)
  INCORPORATION OR ORGANIZATION)
 
                                ---------------
 
                             358 SOUTH MAIN STREET
                       BURLINGTON, NORTH CAROLINA 27215
                                (910) 229-1127
  (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF
                   REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
 
                                ---------------
 
                               BRADFORD T. SMITH
                  EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL,
                  CORPORATE COMPLIANCE OFFICER AND SECRETARY
                  LABORATORY CORPORATION OF AMERICA HOLDINGS
                             358 SOUTH MAIN STREET
                       BURLINGTON, NORTH CAROLINA 27215
                                (910) 229-1127
(NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING AREA CODE,
                             OF AGENT FOR SERVICE)
 
                                ---------------
 
                                  COPIES TO:
 
         KEITH L. KEARNEY                           MARK C. SMITH
      DAVIS POLK & WARDWELL           SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP
       450 LEXINGTON AVENUE                       919 THIRD AVENUE
     NEW YORK, NEW YORK 10017                 NEW YORK, NEW YORK 10022
          (212) 450-4000                           (212) 735-3000
 
                                ---------------
 
  APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: As soon as
practicable after the Registration Statement becomes effective.
  If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the
following box. [_]
  If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or
interest reinvestment plans, check the following box. [X]
   
  If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, check the following box and
list the Securities Act registration statement number of the earlier effective
registration statement for the same offering. [_]            
   
  If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering. [_]            
  If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. [_]
 
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<TABLE>   
<CAPTION>
                                                                PROPOSED MAXIMUM
                                                               AGGREGATE OFFERING    AMOUNT OF
      TITLE OF EACH CLASS OF SECURITIES TO BE REGISTERED           PRICE (1)      REGISTRATION FEE
- --------------------------------------------------------------------------------------------------
<S>                                                            <C>                <C>
Subscription Rights .........................................          (2)              None
- --------------------------------------------------------------------------------------------------
Convertible Preferred Stock ("Preferred Stock") .............    $828,200,000(3)     $250,970(6)
- --------------------------------------------------------------------------------------------------
Convertible Subordinated Notes ("Notes") ....................    $250,562,450(4)        None
- --------------------------------------------------------------------------------------------------
Common Stock.................................................         (5)               None
</TABLE>    
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
(1) Estimated solely for the purpose of calculating the registration fee
    pursuant to Rule 457(o).
(2) Such indeterminate number of Rights to purchase Preferred Stock as may be
    issued to existing stockholders.
(3) Includes Preferred Stock to be issued in the form of dividends on
    outstanding Preferred Stock in accordance with the terms thereof.
(4) To be issued in exchange for Preferred Stock at the option of the Company.
   
(5) Such undeterminable number of shares of common stock as may be issued upon
    conversion of the Preferred Stock or Notes.     
   
(6) Previously paid.     
 
  THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS
REGISTRATION STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH
SECTION 8(A) OF THE SECURITIES ACT OF 1933, AS AMENDED OR UNTIL THE
REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH DATE AS THE COMMISSION,
ACTING PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                    
                 SUBJECT TO COMPLETION, DATED MAY 6, 1997     
                               10,000,000 Shares
 
                                     [LOGO]
 
                   LABORATORY CORPORATION OF AMERICA HOLDINGS
 
                % Series A Convertible Exchangeable Preferred Stock
                                       or
                % Series B Convertible Pay-in-Kind Preferred Stock
    (mandatorily redeemable    , 2012; liquidation preference $50 per share)
                       
                    Dividends payable    ,    ,     and     
                ($500,000,000 aggregate liquidation preference)
 
                                   --------
   
Laboratory  Corporation  of  America  Holdings,  a  Delaware  corporation  (the
"Company"),  is distributing  to  holders of  record  ("Recordholders") of  its
 common stock, par value $0.01 per share (the "Common Stock"), at the close  of
 business  on  May  ,  1997  (the  "Record  Date"),  transferable rights  (the
 "Rights") to  subscribe for and purchase,  at the election of the  holders of
  the Rights (the "Rights Holders"), up  to an aggregate of 10,000,000  shares
  (the "Underlying Shares")  of either   % Series  A Convertible Exchangeable
  Preferred Stock,  par value $0.10 per share, of the  Company (the "Series A
   Exchangeable Preferred Stock")  or    % Series  B Convertible  Pay-in-Kind
   Preferred Stock, par value $0.10 per share, of the Company (the "Series B
   PIK  Preferred  Stock"  and,  together  with the  Series  A  Exchangeable
    Preferred Stock, the "Preferred  Stock"), for a  cash price of $50  (the
    "Subscription Price") per share. Payment of the Subscription Price will
    be  held in a segregated  account to be maintained  by the Subscription
     and Information Agent (as defined  herein) and will be applied  to the
     purchase of Preferred Stock.  Rights Holders will be able to exercise
     their Rights  until 5:00 p.m. New York time on     , 1997 unless such
      time is extended by the Company as described herein (the "Expiration
      Date").     
                                                                     (continued)
   
FOR  A DISCUSSION OF  CERTAIN FACTORS THAT SHOULD  BE CONSIDERED IN  CONNECTION
 WITH  AN INVESTMENT IN THE PREFERRED  STOCK, SEE "RISK FACTORS" BEGINNING  ON
  PAGE 20.     
 
THESE  SECURITIES HAVE NOT BEEN APPROVED  OR DISAPPROVED BY THE SECURITIES  AND
 EXCHANGE  COMMISSION   OR  ANY  STATE  SECURITIES  COMMISSION  NOR   HAS  THE
  SECURITIES  AND  EXCHANGE COMMISSION  OR  ANY  STATE SECURITIES  COMMISSION
   PASSED  UPON   THE  ACCURACY   OR  ADEQUACY   OF  THIS   PROSPECTUS.  ANY
    REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
<TABLE>   
<CAPTION>
                                                       Dealer Manager      
                                      Subscription    and Solicitation     Proceeds to
                                         Price            Fees(1)           Company(2)
                                      ------------    ----------------     ------------
<S>                                   <C>             <C>                  <C>
Per Share(3).........................    $50.00            $2.00              $48.00
Total(3)............................. $500,000,000      $10,022,498        $489,977,502
</TABLE>                                                               
                                                                       
(1) The fees payable to Credit Suisse First Boston Corporation ("Credi t Suisse
    First Boston"), the dealer manager for the Rights Offering, will v ary
    depending on the amount of the proceeds raised in the Rights Offer ing
    excluding proceeds raised from or by Roche Holdings or any of its  
    affiliates. Credit Suisse First Boston will also receive a financial
    advisory fee of $1,000,000. See "Plan of Distribution."     
   
(2) Before deducting other expenses of the Rights Offering payable by the
    Company estimated at $2,000,000 and the financial advisory fee referred to
    above.     
   
(3) Assumes that Roche Holdings purchases 4,988,751 shares of Preferred Stock,
    that no other proceeds are raised by Roche Holdings or any of its
    affiliates in the Rights Offering, and that Rights Holders other than Roche
    Holdings purchase the remaining shares. If no Rights Holder other than
    Roche Holdings purchases Preferred Stock, the total Subscription Price,
    total Dealer Manager and Solicitation Fees and total Proceeds to Company
    would be $500,000,000, $0 and $500,000,000, respectively.     
 
                 The Dealer Manager for the Rights Offering is:
 
                           CREDIT SUISSE FIRST BOSTON
                          
                       Prospectus dated May  , 1997.     
<PAGE>
 
(continued from previous page)
 
  Recordholders will receive     of a Right for each share of Common Stock
held as of the Record Date (the "Rights Offering"). As soon as practicable
after the Record Date, transferable certificates evidencing the Rights (the
"Rights Certificates") will be delivered to the Recordholders. No fractional
Rights or cash in lieu thereof will be issued or paid by the Company. The
number of Rights issued by the Company to each Recordholder will be rounded to
the nearest whole number, with such adjustments as may be necessary to ensure
that no more than 10,000,000 shares of Preferred Stock are issued hereunder.
Each Right consists of a basic subscription privilege under which Rights
Holders may purchase at the Subscription Price one full share of Preferred
Stock for each Right held (the "Basic Subscription Privilege").
 
  Rights Holders who exercise their Basic Subscription Privilege in full will
also be eligible to subscribe (the "Oversubscription Privilege") at the
Subscription Price for shares of Preferred Stock that are not otherwise
purchased pursuant to the exercise of Rights (the "Excess Shares") of the same
series as purchased pursuant to such Rights Holder's Basic Subscription
Privilege, subject to availability and proration. Once a Rights Holder has
exercised the Basic Subscription Privilege or the Oversubscription Privilege
such exercise may not be revoked.
   
  Roche Holdings, Inc. ("Roche Holdings"), a wholly owned subsidiary of Roche
Holding Ltd. ("Roche") is the owner of approximately 49.9% of the Common Stock
currently outstanding. Roche Holdings has informed the Company that it intends
to exercise its Basic Subscription Privilege and Oversubscription Privilege in
full for the Series B PIK Preferred Stock (subject, in the case of the
Oversubscription Privilege, to reduction in certain circumstances). As a
result, if no other Rights are exercised, Roche Holdings will purchase
10,000,000 shares of Series B PIK Preferred Stock.     
 
  The annual dividend for each share of Series A Exchangeable Preferred Stock
offered hereby is $   , payable in cash. The annual dividend for each share of
Series B PIK Preferred Stock offered hereby is $   , payable in shares of
Series B PIK Preferred Stock until    , 2003 and cash thereafter. The
Preferred Stock is convertible on or after    , 1997 in the case of the Series
A Exchangeable Preferred Stock, and on or after    , 2000 in the case of the
Series B PIK Preferred Stock, in each case, at the option of the holder,
unless previously redeemed, into shares of Common Stock at a rate (subject to
adjustment in certain events) of     shares of Common Stock for each share of
Preferred Stock, equivalent to a conversion price of $    for each share of
Common Stock. The conversion rate was determined by the Company, in
consultation with Credit Suisse First Boston. Among the factors considered by
the Board of Directors in determining the conversion rate were (i) the market
value of the Common Stock; (ii) the present and projected operating results
and financial condition of the Company; (iii) an assessment of the Company's
management and management's analysis of the growth potential of the Company
and of the Company's market area; (iv) the aggregate size of the Rights
Offering; and (v) the conversion rate which the Board of Directors believes
investors would readily accept under current economic circumstances. The
shares of Series A Exchangeable Preferred Stock will be exchangeable, subject
to certain conditions, at the option of the Company, in whole (but not in
part), on any dividend payment date on or after    , 2000 for the Company's  %
Convertible Subordinated Notes due 2012 (the "Notes") at a rate of $50
principal amount of Notes for each share of Series A Exchangeable Preferred
Stock. The Series B PIK Preferred Stock will not be exchangeable for Notes.
See "Description of the Notes." Except as described above, the terms of the
Series A Exchangeable Preferred Stock and the Series B PIK Preferred Stock are
identical in all respects. The Preferred Stock is not redeemable prior to    ,
2000. On or after such date, the Company may redeem the Preferred Stock, in
whole or in part at the prices set forth herein, plus in each case, accrued
and unpaid dividends. All shares of Preferred Stock issued and outstanding as
of    , 2012 shall be redeemed by the Company at the redemption price of $50
per share. Dividends on the Preferred Stock are cumulative from the date of
issuance and are payable quarterly in arrears commencing    , 1997. See
"Description of Preferred Stock."
 
  The Common Stock is traded on the New York Stock Exchange ("NYSE") under the
symbol "LH." On February 26, 1997, the last full trading day before
announcement of the Rights Offering, the last
 
                                       2
<PAGE>
 
   
reported sale of the Common Stock on the NYSE Composite Tape was $3 3/4. On
May  , 1997, the last full day of trading prior to the effective date of the
registration statement of which this Prospectus forms a part, the last
reported sale price of the Common Stock on the NYSE Composite Tape was $    .
Application has been made to list the Preferred Stock on the NYSE. It is
unlikely however that the Series B PIK Preferred Stock will be accepted for
listing on the NYSE as it is expected that following the Rights Offering the
Series B PIK Preferred Stock will be held by fewer than 100 holders. It is
expected that the Rights will trade on the NYSE until the close of business on
the last trading day prior to the Expiration Date, at which time they will
cease to have value.     
 
  Upon consummation of the Rights Offering and satisfaction of certain other
conditions precedent, an amended and restated credit agreement (the "Amended
Credit Agreement") between the Company and its existing lenders will become
effective. See "Description of Amended Credit Agreement."
 
                                 ------------
 
  CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN OR OTHERWISE AFFECT THE PRICE OF THE SECURITIES
OFFERED HEREBY, INCLUDING STABILIZING TRANSACTIONS. FOR A DESCRIPTION OF THESE
ACTIVITIES, SEE "PLAN OF DISTRIBUTION."
 
                                       3
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following summary is qualified in its entirety and should be read in
conjunction with the more detailed information and financial statements,
including the notes thereto, included or incorporated by reference in this
Prospectus. Each prospective investor is urged to read this Prospectus in its
entirety. In connection with the Merger (as defined herein) in April 1995,
National Health Laboratories Holdings, Inc. ("NHL") changed its name to
Laboratory Corporation of America Holdings. Unless otherwise indicated, all
references herein to the "Company" refer to Laboratory Corporation of America
Holdings and its consolidated subsidiaries following the Merger or NHL and its
consolidated subsidiaries prior to the Merger, as applicable.
 
                                  THE COMPANY
 
GENERAL
 
  Laboratory Corporation of America Holdings is one of the three largest
independent clinical laboratory companies in the United States based on 1996
net revenues. Through a national network of laboratories, the Company offers a
broad range of testing services used by the medical profession in the
diagnosis, monitoring and treatment of disease and other clinical states. Since
its founding in 1971, the Company has grown into a network of 28 major
laboratories and approximately 1,500 service sites consisting of branches,
patient service centers and STAT laboratories, serving clients in 48 states.
For the year ended December 31, 1996, the Company had net sales of $1,607.7
million and EBITDA before a provision for settlements and related expenses,
restructuring charges and non-recurring expenses of $173.7 million. See
footnote (k) to "Summary Financial Data" for a discussion of certain matters
related to EBITDA. Primarily as a result of the Settlement Charge discussed
below, operating loss and net loss during such period were $118.8 million and
$153.5 million respectively.
 
  The Company has achieved a substantial portion of its growth through
acquisitions. In June 1994, the Company acquired Allied Clinical Laboratories,
Inc. ("Allied"), then the sixth largest independent clinical laboratory testing
company in the United States (based on 1993 net revenues) (the "Allied
Acquisition"). In addition, in April 1995, the Company completed a merger with
Roche Biomedical Laboratories, Inc. ("RBL"), an indirect subsidiary of Roche
pursuant to an Agreement and Plan of Merger dated as of December 13, 1994 (the
"Merger"). In connection with the Merger, the Company changed its name from
National Health Laboratories Holdings, Inc. to Laboratory Corporation of
America Holdings. In addition to the Merger and the Allied Acquisition, since
1993 the Company has acquired a total of 57 small clinical laboratories with
aggregate sales of approximately $182.4 million.
 
THE CLINICAL LABORATORY TESTING INDUSTRY
 
  Laboratory tests and procedures are used generally by hospitals, physicians
and other health care providers and commercial clients to assist in the
diagnosis, evaluation, detection, monitoring and treatment of diseases and
other medical conditions through the examination of substances in the blood,
tissues and other specimens. Clinical laboratory testing is generally
categorized as either clinical testing, which is performed on body fluids
including blood and urine, or anatomical pathology testing, which is performed
on tissue and other samples, including human cells. Clinical and anatomical
pathology procedures are frequently ordered as part of regular physician office
visits and hospital admissions in connection with the diagnosis and treatment
of illnesses. Certain of these tests and procedures are used principally as
tools in the diagnosis and treatment of a wide variety of medical conditions
such as cancer, AIDS, endocrine disorders, cardiac disorders and genetic
disease. The most frequently requested tests include blood chemistry analyses,
urinalyses, blood cell counts, PAP smears, AIDS tests, microbiology cultures
and procedures and alcohol and other substance-abuse tests.
 
                                       4
<PAGE>
 
 
  The clinical laboratory industry consists primarily of three types of
providers: hospital based laboratories, physician-office laboratories and
independent clinical laboratories, such as those owned by the Company. The
Company believes that in 1996 approximately 50 percent of the clinical testing
revenues in the United States were derived by hospital-based laboratories,
approximately 15 percent were derived by physicians in their offices and
laboratories and approximately 35 percent were derived by independent clinical
laboratories. The Health Care Financing Administration ("HCFA") of the
Department of Health and Human Services ("HHS") has estimated that in 1996
there were over 5,000 independent clinical laboratories in the United States.
 
BUSINESS STRATEGY
 
  During 1996, management began implementing a new business strategy in
response to the Company's declining performance. These new strategic objectives
are as follows: remaining a low cost provider of clinical testing services;
providing high quality customer service to its clients; and improving account
profitability. In addition, the Company is focused on certain growth
initiatives beyond routine clinical laboratory testing. The Company believes
that as a result of this change in focus it is well positioned to achieve its
goal of leading the clinical laboratory industry by providing its customers
with innovative, responsive, and high quality services.
 
 LOW COST PROVIDER
 
  The Company believes that due to synergy programs implemented following the
Merger, its standardized equipment and its focus on cost containment, it is a
low cost provider of clinical testing services. Since the Merger, the Company
has been able to effect substantial operating cost reductions in the combined
businesses and expects that the full effect of these savings (approximately
$120 million per year when compared to the businesses' costs immediately prior
to the Merger) will be realized during 1997. In addition, the Company is
focused on other initiatives which are expected to achieve significant cost
savings in 1997. These plans include a new agreement with a supplier of
telecommunications services, additional supply savings primarily due to
increased efficiency, and further regional laboratory consolidation. See
"Management's Discussion and Analysis of Results of Operations and Financial
Position."
 
  The Company has also developed and implemented sophisticated management
information systems to monitor operations and control costs. All financial
functions are centralized in Burlington, North Carolina including purchasing
and accounting. Management believes this provides greater control over spending
as well as increased supervision and monitoring of results of operations.
 
 CLIENT SERVICE
 
  The Company competes primarily on the basis of the quality of its testing,
reporting and information systems, its reputation in the medical community, the
pricing of its services and its ability to employ qualified personnel. The
Company believes it is a leading provider of laboratory testing in terms of its
menu and quality of testing services. As a result of the required focus on the
consolidation process related to the Merger, however, the Company believes that
its level of client service has been negatively impacted. Therefore, in 1997,
with the consolidation process substantially completed, one of the Company's
goals is to improve client service. An important factor in improving client
service includes the Company's initiatives to improve its billing process. See
"Business Billing."
 
 ACCOUNT PROFITABILITY
 
  Since the third quarter of 1996, the Company has begun an active effort to
improve the profitability of new and existing business. To date this effort has
focused primarily on reviewing existing contracts,
 
                                       5
<PAGE>
 
including those with managed care organizations, and selectively repricing or
discontinuing business with existing accounts which perform below Company
expectations. The Company believes that as a result of this effort, the fourth
quarter of 1996 was the second consecutive quarter since the Merger that the
Company's price per accession or specimen did not decline versus the
immediately preceding quarter. The Company is also targeting price increases
across most of its business lines, including specialty and niche testing which
have not seen price increases since the Merger. While such increases may
adversely affect volumes, the Company believes that such measures along with
other cost reduction programs, will improve its overall profitability. Finally,
the Company is reviewing its sales organization and expects to modify its
commission structure so that compensation is tied more directly to the
profitability of retained and new business instead of the current practice of
basing commissions primarily on revenue generated. The Company is also
reviewing alternatives relating to regions of the country and certain
businesses where profitability is not reaching internal goals and may enter
into joint ventures, alliances, or asset swaps with interested parties in order
to maximize regional operating efficiencies.
 
 FOCUSED GROWTH INITIATIVES
 
  The Company plans to increase market share in certain sections of the market
by providing innovative services in three primary areas: (i) hospital
alliances; (ii) specialty and niche businesses; and (iii) direct marketing to
payors.
 
  One of the Company's primary growth strategies is to develop an increasing
number of hospital alliances. These alliances can take several different forms
including laboratory management contracts, reference agreements and joint
ventures. Through these alliances the Company provides testing services as well
as contract management services. As hospitals continue to be impacted by
decreasing fee schedules from third party payors and managed care
organizations, the Company believes that they will seek the most cost-effective
laboratory services for their patients. The Company's economies of scale as
well as its delivery system enable it to assist the hospital in achieving this
goal. These alliances are generally more profitable than the Company's core
business due to the specialized nature of many of the testing services offered
in the alliance program. In 1996, the Company added 6 alliance agreements with
hospitals, physician groups and other care provider organizations representing
approximately $20 million of annual sales. This increased the total number of
alliances to 20 at December 31, 1996 from 14 at December 31, 1995.
 
  Another primary growth strategy for the Company is growth of its specialty
and niche businesses. In general the specialty and niche businesses are
designed to serve two market segments: (i) markets which are not served by the
routine clinical testing laboratory and therefore are subject to less stringent
regulatory and reimbursement constraints; and (ii) markets which are served by
the routine testing laboratory but offer the possibility of adding related
services from the same supplier. The Company's research and development group
continually seeks new and improved technologies for early diagnosis. For
example, the Company believes its Center for Molecular and Biology and
Pathology ("CMBP") is a leader in molecular diagnostics and polymerase chain
reaction ("PCR") technologies which are often able to provide earlier and more
reliable information regarding HIV, genetic diseases, cancer, and many viral
and bacterial diseases. These technologies may represent a significant savings
to managed care organizations by increasing the detection of early stage
(treatable) diseases. Also, the Company recently acquired Genetic Design, Inc.
and management believes it is now the largest provider of identity testing
services in the United States.
 
  Finally, in 1996 the Company also began to focus efforts on selling its
services directly to payors of laboratory services. As a result of that focus,
the Company entered into an agreement with PCS Health Systems, Inc. ("PCS"), a
leading pharmacy benefit management company with 58 million covered lives, to
provide laboratory services as an extension of the PCS prescription card
services. Through this
 
                                       6
<PAGE>
 
agreement patients will be provided with identification cards indicating
beneficiary eligibility for both prescription benefits and the Company's
testing services. The Company will provide the testing services as requested
and bill PCS based on a predetermined fee schedule. The Company will pay PCS
certain percentage and fixed fees for adjudication of claims. One of the
advantages of the PCS agreements is that patient eligibility will be determined
at the time of testing through interface with the PCS information system which
will expedite processing of the claim for reimbursement.
 
RECENT DEVELOPMENTS
 
  During 1996 and the early part of 1997, the Company has undergone significant
changes in management with Thomas P. Mac Mahon assuming the role of President
and Chief Executive Officer in January 1997 in addition to his position as
Chairman. Prior to such time Mr. Mac Mahon served as Senior Vice President of
Hoffmann--La Roche and President of Roche Diagnostics Group where he was
responsible for the management of all United States operations of the
diagnostic businesses of Hoffmann-- La Roche. In addition to Mr. Mac Mahon, the
Company is led by a new Chief Financial Officer, Wesley R. Elingburg, formerly
Senior Vice President-Finance, and a new management committee.
 
  As part of an examination of the rapid growth of Federal expenditures for
clinical laboratory services, several Federal agencies, including the Federal
Bureau of Investigation, the Office of the Inspector General ("OIG") of HHS and
the Department of Justice (the "DOJ"), have investigated allegations of
fraudulent and abusive conduct by health care providers. On November 21, 1996,
the Company reached a settlement with the OIG and the DOJ regarding the prior
billing practices of various of its predecessor companies (the "1996 Government
Settlement"). See "Business--Regulation and Reimbursement--OIG Investigations
- --1996 Government Settlement". Consistent with this overall settlement, the
Company paid $187 million to the Federal Government (the "Settlement Payment")
in December 1996 with proceeds from a loan from Roche Holdings (the "Roche
Loan"). See "--Relationship with Roche". As a result of negotiations related to
the 1996 Government Settlement, the Company recorded a charge of $185 million
in the third quarter of 1996 (the "Settlement Charge") to increase reserves for
the 1996 Government Settlement and other related expenses of government and
private claims resulting therefrom.
 
  In March 1997, the Company entered into the Sixth Amendment and Waiver (the
"Sixth Amendment") to its credit agreement (the "Existing Credit Agreement").
The Sixth Amendment eliminates amortization payments on its term loan facility
(the "Term Loan Facility") under the Existing Credit Agreement for 1997 and
modifies the interest coverage and leverage ratios for the quarterly periods
through December 31, 1997. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations." Pursuant to this amendment, the
Company paid an amendment fee of 37.5 basis points on commitments and will pay
an additional fee of 62.5 basis points if the Rights Offering is not completed
by June 30, 1997.
 
  In addition, the Roche Loan was originally due on March 31, 1997. In March
1997, the Company negotiated an amendment to the Roche Loan which provided for
an extension of the due date to March 31, 1998.
 
  The Company also entered into the Amended Credit Agreement with its lenders
under the Existing Credit Agreement which will become effective upon completion
of the Rights Offering following satisfaction of certain conditions precedent.
Upon consummation of the Rights Offering and receipt of $500 million in gross
proceeds, the Amended Credit Agreement makes available to the Company a term
loan facility of $643.8 million (the "Amended Term Loan Facility") and a $450.0
million revolving credit facility (the "Amended Revolving Credit Facility").
See "Description of Amended Credit Agreement" and Note 9 of the Notes to
Consolidated Financial Statements for a complete description of the Amended
Credit Agreement.
 
                                       7
<PAGE>
 
   
RECENT FINANCIAL RESULTS     
          
  Net sales for the first quarter of 1997 were $391.5 million, versus $403.9
million in the first quarter of 1996. In the first quarter of 1997, the
Company posted operating income of $27.8 million, net earnings of $2.4
million, and earnings per share of $0.02. This compares with operating income
of $27.8 million, net earnings of $5.9 million, and earnings per share of
$0.05 in the same period in 1996.     
   
  The first quarter of 1997 was the first quarter in two years that prices
increased over the prior year's comparable period. Although sales were
approximately $12 million lower than the first quarter of 1996, expense
reductions in the first quarter of 1997 offset this revenue decline, allowing
the Company to maintain operating income at a level equal to the comparable
period in 1996. The lower revenue in 1997 reflects a decline in volume
consistent with industry trends as well as the Company's program of
selectively eliminating unprofitable accounts and carefully evaluating the
acceptability of new business.     
   
  In addition, on flat sales, operating income for the first quarter of 1997
represents an increase of approximately 27% when compared to operating income
of $21.8 million for the fourth quarter of 1996. This improvement is a direct
result of the Company's continuing efforts to reduce costs and increase price.
       
  Additionally, the Company is increasing its emphasis on actively pursuing
profitable new growth opportunities that add volume and capitalize on its
extensive service capabilities. Recently, the Company finalized a multi-year,
preferred provider agreement with United Healthcare Corporation ("United"),
one of the nation's largest health care services organizations. Under the
national agreement, the Company is eligible to provide clinical laboratory
testing services for up to 10 million persons served by United's health plans
and preferred provider networks.     
   
  Set forth below is certain summarized financial information for the first
quarter of 1996 and 1997.     
 
<TABLE>   
<CAPTION>
                                                           THREE MONTHS ENDED
                                                                MARCH 31,
                                                           --------------------
                                                             1997       1996
                                                           ---------  ---------
<S>                                                        <C>        <C>
Net sales................................................. $   391.5  $   403.9
                                                           =========  =========
EBITDA(1)................................................. $    49.3  $    48.4
                                                           =========  =========
Operating Income.......................................... $    27.8  $    27.8
                                                           =========  =========
Earnings before income taxes.............................. $     5.9  $    11.8
Provision for income taxes................................      (3.5)      (5.9)
                                                           ---------  ---------
Net earnings.............................................. $     2.4  $     5.9
                                                           =========  =========
Net earnings per common share(2).......................... $    0.02  $    0.05
                                                           =========  =========
</TABLE>    
- -------
   
(1) EBITDA represents income (loss) before net interest expense, provision for
    income taxes, depreciation and amortization expense and extraordinary
    items. While EBITDA is not intended to represent cash flow from operations
    as defined by generally accepted accounting principles ("GAAP") (and
    should not be considered as an indicator of operating performance or an
    alternative to operating income or cash flow (as measured by GAAP)), as a
    measure of liquidity, management believes it provides additional
    information with respect to the ability of the Company to meet its future
    debt service, capital expenditure and working capital requirements. EBITDA
    may not be comparable to other measures of liquidity and excludes
    components of net income (loss) which are significant in understanding the
    Company's financial performance. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations--Liquidity and Capital
    Resources."     
   
(2) Net earnings per common share are based on the weighted average number of
    shares outstanding during the three-month periods ended March 31, 1997 and
    1996 of 122,935,080 and 122,908,722 shares, respectively.     
       
                                       8
<PAGE>
 
       
          
  On March 28, 1997, a formal announcement (the "Announcement") from the
Securities and Exchange Commission (the "Commission") was made available which
will impact the Company's calculation of earnings per share with respect to the
issuance of the Preferred Stock. It is currently anticipated that the Preferred
Stock will be convertible into Common Stock at a conversion price lower than
the current market value of the Common Stock. The Announcement generally
requires that the difference between the conversion price to holders of
preferred stock at issuance and the value of the related common stock, solely
as measured in the public market at that date, be recognized as a preferred
dividend (the "Imputed Dividend") and the resulting Imputed Dividend amortized
using the effective interest method from the date of issuance through the date
the preferred stock is first convertible.     
   
  As a result of the Announcement and the anticipated difference between the
conversion price of the Preferred Stock and the market value of the related
Common Stock, the Company expects that it will record a significant Imputed
Dividend upon the issuance of the Preferred Stock resulting in less income or a
higher loss applicable to holders of the Common Stock. In addition, net income
or loss applicable to holders of Common Stock in future periods will be
affected by amortization of the initial Imputed Dividend and additional Imputed
Dividend which may arise when additional shares of Series B PIK Preferred Stock
are issued as dividends on the Series B PIK Preferred Stock.     
 
  The Company's principal executive offices are located at 358 South Main
Street, Burlington, North Carolina 27215, and its telephone number is 
(910) 229-1127.
 
                            RELATIONSHIP WITH ROCHE
   
  In connection with the Merger, HLR Holdings Inc. ("HLR"), and its designee,
Roche Holdings, received 49.9% of the total outstanding Common Stock of the
Company and the Company, HLR, Roche Holdings and Hoffmann--La Roche Inc.
entered into a Stockholder Agreement dated as of April 28, 1995 (the
"Stockholder Agreement"). In December of 1996, HLR was merged with and into
Roche Holdings. As a result of its ownership interest and its rights under the
Stockholder Agreement, Roche is able to exercise significant influence on the
governance of the Company and on the composition of its board of directors. See
"Certain Relationships and Related Transactions--The Stockholder Agreement."
Roche Holdings has indicated that it intends to exercise its Basic Subscription
Privilege and Oversubscription Privilege in the Rights Offering in full for
Series B PIK Preferred Stock (subject, in the case of the Oversubscription
Privilege, to reduction in certain circumstances). As a result, if no other
Rights are exercised, Roche Holdings will purchase 10,000,000 shares of Series
B PIK Preferred Stock. Consequently, following conversion of all of the
Preferred Stock, Roche Holdings will own a minimum of 49.9% and a maximum of
  % of the total outstanding Common Stock of the Company. As mentioned above,
in December, 1996, Roche Holdings loaned $187 million to the Company to fund
the Settlement Payment in the form of a promissory note. Such note bears
interest at a rate of 6.625% per annum and matures on March 31, 1998. A portion
of the proceeds of the Rights Offering will be used to repay such loan. See
"Use of Proceeds."     
 
                                       9
<PAGE>
 
 
                              THE RIGHTS OFFERING
 
Securities Offered..........  A total of up to 10,000,000 shares of Preferred
                              Stock are being offered in the Rights Offering
                              pursuant to the exercise of Rights. Once the
                              Rights are distributed and until the Expiration
                              Date, the Company will not effect a
                              reclassification of the Company's equity
                              securities which could have the effect of
                              materially altering the value of the Rights. See
                              "Description of Rights Offering" and "Description
                              of Preferred Stock."
 
Basic Subscription            Recordholders at the close of business on the
 Privilege..................  Record Date will receive, at no cost,     of a
                              Right for each share of Common Stock owned of
                              record at the close of business on such date.
                              Each Right will entitle the Rights Holder to
                              subscribe for one Underlying Share at the
                              Subscription Price. Upon exercise of the Rights,
                              Rights Holders must indicate on their Rights
                              Certificate whether they wish to receive either
                              shares of Series A Exchangeable Preferred Stock
                              or shares of Series B PIK Preferred Stock. A
                              failure to so indicate on the Rights Certificate
                              will result in the issuance of Series A
                              Exchangeable Preferred Stock. No fractional
                              Rights or cash in lieu thereof will be issued or
                              paid. Fractional Rights will be rounded to the
                              nearest whole number, with such adjustments as
                              may be necessary to ensure that no more than
                              10,000,000 shares of Preferred Stock are issued
                              hereunder. ONCE A RIGHT HAS BEEN PROPERLY
                              EXERCISED, IT CANNOT BE REVOKED. See "Description
                              of Rights Offering--The Rights" and "--
                              Subscription Privileges."
 
Oversubscription                 
 Privilege..................  Each Rights Holder who elects to exercise the
                              Basic Subscription Privilege in full may also
                              subscribe at the Subscription Price for Excess
                              Shares of the same series as purchased pursuant
                              to such Rights Holder's Basic Subscription
                              Privilege, subject to availability and proration.
                              The available Excess Shares will be prorated
                              among Rights Holders who exercise their
                              Oversubscription Privilege based upon the
                              respective number of shares of Preferred Stock
                              each such Rights Holder shall have subscribed for
                              pursuant to the Basic Subscription Privilege;
                              provided, however, that Roche Holdings will not
                              be allocated any Excess Shares until all other
                              Rights Holders exercising the Oversubscription
                              Privilege have been allocated the number of
                              Excess Shares for which they oversubscribed. All
                              excess payments shall be returned by mail without
                              interest or deduction promptly after the
                              Expiration Date and after all prorations and
                              adjustments contemplated by the Rights Offering
                              have been effected. See "Description of Rights
                              Offering--Subscription Privileges."     
 
Subscription Price..........  $50 per share of Preferred Stock. Payment of the
                              Subscription Price will be held in a segregated
                              account to be maintained by the Subscription and
                              Information Agent and will be applied to the
                              purchase of Preferred Stock.
 
                                       10
<PAGE>
 
 
Record Date.................     , 1997.
 
Expiration Date.............
                                 
                              The Rights will expire, if not exercised prior to
                              5:00 p.m., New York time, on     , 1997 unless
                              extended for up to 30 days in the sole discretion
                              of the Company. The number and length of any such
                              extensions will be set at the time of any such
                              extension. See "Description of Rights Offering--
                              Expiration Date."     
 
The Rights..................  The Rights will be evidenced by transferable
                              certificates that will be exercisable by a Rights
                              Holder until the Expiration Date. It is expected
                              that the Rights will trade on the NYSE until the
                              close of business on the last trading day prior
                              to the Expiration Date, at which time they will
                              cease to have value.
 
Subscription and
 Information Agent..........  American Stock Transfer & Trust Company.
 
Dealer Manager..............  The Company and Credit Suisse First Boston (the
                              "Dealer Manager") have entered into a Dealer
                              Manager Agreement pursuant to which Credit Suisse
                              First Boston is acting as the dealer manager in
                              connection with the Rights Offering. The Company
                              has agreed to pay certain fees to, and expenses
                              of, the Dealer Manager for its services in the
                              Rights Offering. See "Plan of Distribution."
 
Procedure for Exercising         
 Rights.....................  The Basic Subscription Privilege and the
                              Oversubscription Privilege may be exercised by
                              properly completing the Rights Certificate, and
                              forwarding it (or following the Guaranteed
                              Delivery Procedures), with payment of the
                              Subscription Price for each Underlying Share
                              subscribed for pursuant to the Basic Subscription
                              Privilege and the Oversubscription Privilege, to
                              the Subscription and Information Agent, who must
                              receive such Rights Certificate or Notice of
                              Guaranteed Delivery and payment on or prior to
                              the Expiration Date. If Rights Certificates are
                              sent by mail, Rights Holders are urged to use
                              insured, registered mail, return receipt
                              requested. See "Description of Rights Offering--
                              Method of Subscription--Exercise of Rights."     
 
                              If the aggregate Subscription Price paid by an
                              exercising Rights Holder is insufficient to
                              purchase the number of Underlying Shares that the
                              Rights Holder indicates are being subscribed for,
                              or if no number of Underlying Shares to be
                              purchased is specified, then the Rights Holder
                              will be deemed to have exercised the Basic
                              Subscription Privilege to purchase Underlying
                              Shares to the full extent of the payment price
                              tendered. If the aggregate Subscription Price
                              paid by an exercising Rights Holder exceeds the
                              amount necessary to purchase the number of
                              Underlying Shares for which the Rights Holder has
                              indicated an intention to subscribe, then the
                              Rights Holder will be deemed to have exercised
                              the Oversubscription Privilege to the full extent
                              of the excess payment tendered, and
 
                                       11
<PAGE>
 
                              any amount remaining shall be returned to such
                              Rights Holder. See "Description of Rights
                              Offering--Method of Subscription --Exercise of
                              Rights."
 
                              ONCE A RIGHTS HOLDER HAS EXERCISED THE BASIC
                              SUBSCRIPTION PRIVILEGE OR THE OVERSUBSCRIPTION
                              PRIVILEGE, SUCH EXERCISE MAY NOT BE REVOKED.
                              RIGHTS NOT EXERCISED PRIOR TO THE EXPIRATION DATE
                              WILL EXPIRE.
 
                             
Persons Holding Common       
 Stock, or Wishing to        
 Exercise Rights, Through    
 Others.....................  Persons holding shares of Common Stock
                              beneficially and receiving the Rights issuable
                              with respect thereto, through a broker, dealer,
                              commercial bank, trust company or other nominee,
                              as well as persons holding certificates for
                              Common Stock directly, who would prefer to have
                              such institutions effect transactions relating to
                              the Rights on their behalf, should contact the
                              appropriate institution or nominee and request it
                              to effect such transaction for them. See
                              "Description of Rights Offering--Method of
                              Subscription--Exercise of Rights."
 
                             
Procedure for Exercising     
 Rights by Stockholders      
 Outside of the United       
 States.....................  Rights Certificates will not be mailed to holders
                              of Common Stock whose addresses are outside the
                              United States or who have an Army Post Office
                              ("APO") or a Fleet Post Office ("FPO") address,
                              but will be held by the Subscription and
                              Information Agent for their accounts. To exercise
                              the Rights represented thereby, such holders must
                              notify the Subscription and Information Agent and
                              take all other steps which are necessary to
                              exercise the Rights on or prior to 5:00 p.m. New
                              York time on    , 1997. If no contrary
                              instructions have been received by such time, the
                              Rights of such holders will expire. See
                              "Description of Rights Offering--Foreign and
                              Certain Other Stockholders."
Federal Income Tax           
 Consequences...............  In the opinion of Davis Polk & Wardwell, for
                              United States Federal income tax purposes,
                              receipt of Rights by a Recordholder pursuant to
                              the Rights Offering should be treated as a
                              nontaxable distribution with respect to the
                              Common Stock. See "Certain Federal Income Tax
                              Consequences."
Issuance of Preferred        
 Stock......................  Certificates representing shares of Preferred
                              Stock purchased pursuant to the exercise of the
                              Rights will be delivered to subscribers as soon
                              as practicable after the Expiration Date and
                              after all prorations and adjustments contemplated
                              by the terms of the Rights Offering have been
                              effected.
 
                                       12
<PAGE>
 
 
No Board or Financial
 Advisor Recommendations....  An investment in the Preferred Stock must be made
                              pursuant to each investor's evaluation of such
                              investor's best interests. Accordingly, neither
                              the Board of Directors of the Company nor Credit
                              Suisse First Boston, as financial advisor to the
                              Company, makes any recommendation to Rights
                              Holders regarding whether they should exercise
                              their Rights to purchase Preferred Stock.
 
                                 
Principal Stockholders......  Roche Holdings, the owner of approximately 49.9%
                              of the Common Stock currently outstanding, has
                              indicated that it intends to exercise its Basic
                              Subscription Privilege and Oversubscription
                              Privilege in full for Series B PIK Preferred
                              Stock (subject, in the case of the
                              Oversubscription Privilege, to reduction in
                              certain circumstances). As a result, if no other
                              Rights are exercised, Roche Holdings will
                              purchase 10,000,000 shares of Series B PIK
                              Preferred Stock.     
 
NYSE Symbol for Common
 Stock......................  "LH"
 
NYSE Symbol for Rights......  "LH RT"
 
NYSE Symbol for the Series
 A Exchangeable Preferred              
 Stock......................  "LH PrA" 
 
NYSE Symbol for the Series
 B PIK Preferred Stock......  "LH PrB". While application has been made to list
                              the Series B PIK Preferred Stock on the NYSE, it
                              is unlikely that the Series B PIK Preferred Stock
                              will be accepted for listing as it is expected
                              that following the Rights Offering the Series B
                              PIK Preferred Stock will be held by fewer than
                              100 holders.
                                                                                
Use of Proceeds.............  The gross proceeds of the Rights Offering will be
                              used to (i) repay approximately $294 million
                              outstanding under the Existing Credit Agreement,
                              (ii) pay fees and expenses of approximately $13 
                              million related to the Rights Offering and (iii)
                              repay the $187 million loan from Roche Holdings
                              in order to fund the Settlement Payment plus
                              accrued interest thereon of approximately $6
                              million. See "Use of Proceeds."             
                                                                          
 
                                       13
<PAGE>
 
                              THE PREFERRED STOCK
 
Securities Offered..........  An aggregate of up to 10,000,000 shares of   %
                              Series A Convertible Exchangeable Preferred Stock
                              and   % Series B Convertible Pay-in-Kind
                              Preferred Stock. Except as described below, the
                              terms of the Series A Exchangeable Preferred
                              Stock and the Series B PIK Preferred Stock are
                              identical in all respects.
 
Mandatory Redemption........     , 2012.
 
Dividends...................  Annual cumulative dividends of $   per share on
                              the Preferred Stock are payable quarterly on each
                                 ,    ,     and     , when, as and if declared
                              by the Board of Directors.
                                 
                              Annual cumulative dividends in the case of the
                              Series A Exchangeable Preferred Stock are payable
                              in cash out of funds legally available therefor,
                              and in the case of the Series B PIK Preferred
                              Stock, are payable in shares of Series B PIK
                              Preferred Stock until     , 2003 and cash
                              thereafter.     
                                 
                              The Company may not pay dividends on the
                              Preferred Stock unless it has paid or declared
                              and set apart for payment accrued and unpaid
                              dividends for all dividend payment periods on any
                              class or series of stock ranking senior to the
                              Preferred Stock as to dividends and it has paid
                              or declared and set apart for payment or
                              contemporaneously pays or declares and sets apart
                              for payment accrued and unpaid dividends for all
                              dividend payment periods on any class or series
                              of stock having parity with the Preferred Stock
                              as to dividends (which, in the case of the Series
                              A Exchangeable Preferred Stock, will include the
                              Series B PIK Preferred Stock and vice versa)
                              ratably, so that the amount of dividends declared
                              and paid per share on each series of Preferred
                              Stock and any such class or series of stock
                              having parity with the Preferred Stock as to
                              dividends will bear to each other the same ratio
                              that the accrued and unpaid dividends to the date
                              of payment on each such class or series of stock
                              and each series of Preferred Stock bear to each
                              other.     
 
Liquidation Preference......  $50 per share of Preferred Stock, plus accrued
                              and unpaid dividends.
 
Conversion Rights...........  Each share of Preferred Stock will be convertible
                              at any time at the option of the holder thereof,
                              in the case of the Series A Exchangeable
                              Preferred Stock on or after     , 1997 and in the
                              case of the Series B PIK Preferred Stock on or
                              after    , 2000, into     shares of Common Stock
                              of the Company, subject to adjustment in certain
                              events, including a Fundamental Change (as
                              defined herein). See "Description of Preferred
                              Stock--Conversion Rights."
 
                                       14
<PAGE>
 
                                                                                
                                                                                
                                             
                               
Registration Rights....       In connection with the Rights Offering, the
                              Company will grant to each Rights Holder
                              (including Roche Holdings) who upon consummation
                              of the Rights Offering beneficially owns
                              Preferred Stock convertible into 10% or more of
                              the Common Stock outstanding, and who certifies
                              as such, registration rights with respect to such
                              Common Stock on the same terms as those granted
                              to Roche Holdings pursuant to the Stockholder
                              Agreement.     
 
Exchange for Notes..........  The Series A Exchangeable Preferred Stock will be
                              exchangeable, subject to certain conditions, at
                              the option of the Company, in whole (but not in
                              part), on any dividend payment date on or after
                                  , 2000 for the Company's   % Convertible
                              Subordinated Notes due 2012 in a principal amount
                              equal to $50 per share of Series A Exchangeable
                              Preferred Stock. The Notes will be convertible,
                              at the option of the holder thereof, into shares
                              of Common Stock initially at the conversion price
                              for the Series A Exchangeable Preferred Stock at
                              the time of the exchange. Holders of Notes will
                              be entitled to the same conversion rights as
                              holders of Series A Exchangeable Preferred Stock.
                              The Notes will bear interest at the rate of   %
                              payable quarterly in arrears on    ,    ,     and
                                  of each year, commencing on the first such
                              interest payment date following the date of
                              exchange. At the Company's option, on or after
                                 , 2000, the Notes will be redeemable, in whole
                              or in part, at the redemption prices set forth
                              herein plus accrued and unpaid interest. The
                              Notes are not subject to mandatory sinking fund
                              payments. The Notes will be subordinated to all
                              Senior Indebtedness (as defined herein) of the
                              Company.
                             
Optional Redemption.........  The Preferred Stock will not be redeemable prior
                              to    , 2000. On and after such date, the
                              Preferred Stock will be redeemable, in whole or
                              in part, at the option of the Company, at the
                              prices set forth herein, plus in each case
                              accrued and unpaid dividends to the redemption
                              date.
 
                                 
Ranking.....................  The Preferred Stock will rank, with respect to
                              dividend rights and rights upon liquidation,
                              winding up or dissolution, senior to all classes
                              of the Company's common stock, on parity with
                              each other and any other series or class of stock
                              that may hereafter be created with the approval
                              of the holders of Preferred Stock that ranks on
                              parity with the Preferred Stock and junior to any
                              other series or class of stock that may hereafter
                              be created with the approval of the holders of
                              Preferred Stock that ranks senior to the
                              Preferred Stock.     
 
Voting Rights...............  The holders of Preferred Stock will not have any
                              voting rights, except as provided by applicable
                              law and except that, among other things, holders
                              will be entitled to vote together as a sepa- rate
                              class (with the holders of shares of any other
                              series of
 
                                       15
<PAGE>
 
                                 
                              preferred stock of the Company having similar
                              rights) to elect two directors of the Company if
                              the equivalent of six quarterly dividends payable
                              on the Preferred Stock are in arrears. In addi-
                              tion, so long as any Preferred Stock is
                              outstanding the Company will not, without the
                              affirmative vote or consent of the holders of at
                              least (a) 66 2/3% of all outstanding shares of
                              both series of Preferred Stock and outstanding
                              Parity Dividend Stock (as defined herein) (voting
                              as a single class), take certain actions so as
                              adversely to affect the relative rights,
                              preferences, qualifications, limitations, or
                              restrictions of either series of Preferred Stock,
                              authorize or issue, or increase the authorized
                              amount of any Senior Dividend Stock, Senior
                              Liquidation Stock (as such terms are defined
                              herein) or any security convertible into such
                              Senior Dividend Stock or Senior Liquidation Stock
                              or effect any reclassification of either series
                              of Preferred Stock or (b) a majority of all
                              outstanding shares of both series of Preferred
                              Stock and outstanding Parity Dividend Stock
                              (voting as a single class) authorize or issue or
                              increase the authorized amount of any additional
                              class of Parity Stock (as defined herein) or any
                              security convertible into such Parity Stock.     
 
                              Each share of Preferred Stock will be entitled to
                              one vote on matters on which holders of such
                              shares are entitled to vote.
           
                             
Federal Income Tax                
 Consequences...............  There are certain Federal income tax consequences
                              associated with purchasing, holding and disposing
                              of the Preferred Stock, including the fact that
                              an exchange of the Series A Exchangeable
                              Preferred Stock for Notes or a redemption of
                              shares of Preferred Stock for cash will be a
                              taxable transaction and may be taxable as a
                              dividend. See "Certain Federal Income Tax
                              Consequences."     
 
                                       16
<PAGE>
 
 
                             SUMMARY FINANCIAL DATA
 
<TABLE>   
<CAPTION>
                                            Year Ended December 31,
                             --------------------------------------------------------------------
                                 1996        1996      1995(b)     1994(c)      1993       1992
                             ------------  --------    --------    -------     -------    -------
                             Pro forma(a)   Actual
                             ------------  --------
                                (Dollars in millions, except per share amounts)
<S>                          <C>           <C>         <C>         <C>         <C>        <C>
STATEMENT OF OPERATIONS
 DATA:
Net sales..................    $1,607.7    $1,607.7    $1,432.0    $872.5       $760.5     $721.4
Cost of sales..............     1,183.9     1,183.9     1,024.3     597.0        444.5      395.1
                               --------    --------    --------    ------      -------    -------
Gross profit...............       423.8       423.8       407.7     275.5        316.0      326.3
Selling general and
 administrative expenses...       305.0       305.0       238.5     149.3        121.4      117.9
Amortization of intangibles
 and other assets..........        29.6        29.6        27.0      16.3          9.1        8.3
Restructuring and non-
 recurring charges.........        23.0(d)     23.0(d)     65.0(e)    --           --         --
Provision for settlements
 and related expenses......       185.0(d)    185.0(d)     10.0(e)    --           --       136.0(f)
                               --------    --------    --------    ------      -------    -------
Operating income (loss)....      (118.8)     (118.8)       67.2     109.9        185.5       64.1
Litigation settlement and
 related expenses..........         --          --          --      (21.0)(g)      --         --
Other gains and expenses,
 net.......................         --          --          --        --          15.3(h)     --
Net interest income
 (expense).................       (57.2)      (69.5)      (64.1)    (33.5)        (9.7)      (2.0)
                               --------    --------    --------    ------      -------    -------
Earnings (loss) before
 income taxes and
 extraordinary item........      (176.0)     (188.3)        3.1      55.4        191.1       62.1
Provision for income
 taxes.....................       (29.9)      (34.8)        7.1      25.3         78.4       21.5
                               --------    --------    --------    ------      -------    -------
Earnings (loss) before
 extraordinary item........      (146.1)     (153.5)       (4.0)     30.1        112.7       40.6
Extraordinary item--loss on
 early extinguishment of
 debt, net(i)..............         --          --         (8.3)      --           --         --
                               --------    --------    --------    ------      -------    -------
Net earnings (loss)........      (146.1)     (153.5)      (12.3)     30.1        112.7       40.6
Less preferred stock
 dividend..................      (103.4)        --          --        --           --         --
                               --------    --------    --------    ------      -------    -------
Net earnings (loss)
 applicable to common
 shares....................    $ (249.5)   $ (153.5)   $  (12.3)   $ 30.1      $ 112.7    $  40.6
                               ========    ========    ========    ======      =======    =======
Net earnings (loss) per
 common share:
 Primary
 Before extraordinary
  loss.....................       (2.03)      (1.25)      (0.03)     0.36      $  1.26       0.43
   Extraordinary loss......         --          --        (0.08)      --           --         --
                               --------    --------    --------    ------      -------    -------
        Total..............    $  (2.03)   $  (1.25)   $  (0.11)   $ 0.36      $  1.26    $  0.43
                               ========    ========    ========    ======      =======    =======
 Fully Diluted
 Before extraordinary
  loss.....................       (2.03)      (1.25)      (0.03)     0.36      $  1.26       0.43
 Extraordinary loss........         --          --        (0.08)      --           --         --
                               --------    --------    --------    ------      -------    -------
        Total..............    $  (2.03)   $  (1.25)   $  (0.11)   $ 0.36      $  1.26    $  0.43
                               ========    ========    ========    ======      =======    =======
Dividends per common
 share.....................    $    --     $    --     $    --     $ 0.08      $  0.32    $  0.31
Weighted average common
 shares outstanding
 (in thousands)
 Primary...................     122,920     122,920     110,579    84,754       89,439     94,468
                               ========    ========    ========    ======      =======    =======
 Fully diluted.............     307,696     122,920     110,579    84,754       89,439     94,468
                               ========    ========    ========    ======      =======    =======
</TABLE>    
 
<TABLE>   
<CAPTION>
                                 1996     1995(b)   1994(c)    1993     1992
                                -------   -------   -------   ------   ------
                                Actual
                                -------
                                        (Dollars in millions)
<S>                             <C>       <C>       <C>       <C>      <C>
SUPPLEMENTAL DATA:
Net cash provided by (used in)
 operating activities(j)......  $(186.8)  $  47.0   $  14.7   $ 57.2   $102.4
Net cash used in investing
 activities...................  $ (59.1)  $(115.0)  $(293.6)  $(95.7)  $(36.3)
Net cash provided by (used in)
 financing activities(j)......  $ 258.8   $  57.6   $ 293.4   $ 17.4   $(84.0)
Bad debt expense..............  $  81.4   $  64.8   $  29.5   $ 28.0   $ 32.1
Bad debt expense as a % of net
 sales........................      5.1 %     4.5 %     3.4 %    3.7 %    4.4 %
Capital expenditures..........  $  54.1   $  75.4   $  48.9   $ 33.6   $ 34.9
EBITDA(k).....................  $ (34.3)  $ 139.6   $ 154.3   $217.7   $ 91.0
EBITDA as a % of net
 sales(k).....................     (2.1)%     9.7 %    17.7 %   28.6 %   12.6 %
Adjusted EBITDA(l)............  $ 173.7   $ 214.6   $ 154.3   $217.7   $227.0
Adjusted EBITDA as a % of net
 sales(l).....................     10.8 %    15.0 %    17.7 %   28.6 %   31.5 %
Ratio of earnings to combined
 fixed charges and preferred
 stock dividends(m)...........       NM     1.04x     2.20x   10.16x    5.71x
</TABLE>    
 
                                       17
<PAGE>
 
 
<TABLE>   
<CAPTION>
                                          As of December 31,
                         -----------------------------------------------------
                             1996       1996   1995(b)  1994(c)   1993   1992
                         ------------ -------- -------- -------- ------ ------
                         Pro forma(m)  Actual
                         ------------ --------
                                         (Dollars in millions)
<S>                      <C>          <C>      <C>      <C>      <C>    <C>
BALANCE SHEET DATA:
Cash and cash
 equivalents............   $   25.0   $   29.3 $   16.4 $   26.8 $ 12.3 $ 33.4
Working capital.........      466.7      468.7    249.4     90.2   62.4   32.0
Total assets............    1,917.0    1,917.0  1,837.2  1,012.7  585.5  477.4
Total debt(o)...........      826.7    1,308.0  1,034.2    648.9  341.5  154.2
Total stockholders'
 equity.................      332.7      258.1    411.6    166.0  140.8  212.5
</TABLE>    
- --------
(a) The summary unaudited pro forma statement of operations data for the year
    ended December 31, 1996 present the results of operations of the Company
    assuming the Roche Loan, the Settlement Payment, the Rights Offering and
    the application of the proceeds therefrom and effectiveness of the Amended
    Credit Agreement had occurred as of the beginning of 1996. For a complete
    description of the assumptions underlying the pro forma amounts, see
    "Unaudited Pro Forma Financial Information."
(b) In April 1995, the Company completed the Merger. RBL's results of
    operations have been included in the Company's results of operations since
    April 28, 1995. See "Management's Discussion and Analysis of Financial
    Condition and Results of Operations--General" and Note 2 of the Notes to
    Consolidated Financial Statements.
(c) In June 1994, the Company completed the Allied Acquisition. Allied's
    results of operations have been included in the Company's results of
    operations since June 23, 1994. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations--General" and Note 2 of
    the Notes to Consolidated Financial Statements.
(d) In the second quarter of 1996, the Company recorded certain charges of a
    non-recurring nature including additional charges related to the
    restructuring of operations following the Merger. The Company recorded a
    restructuring charge totaling $13.0 million for the shutdown of its La
    Jolla, California administrative facility and other workforce reductions.
    In addition, the Company recorded $10.0 million in non-recurring charges in
    the second quarter of 1996 related to the integration of its operations
    following the Merger. See Note 3 of the Notes to Consolidated Financial
    Statements. As a result of negotiations with the OIG and DOJ related to the
    1996 Government Settlement, the Company recorded the Settlement Charge of
    $185.0 million in the third quarter of 1996 to increase accruals for
    settlements and related expenses of government and private claims resulting
    from these investigations. See "Regulation and Reimbursement--1996
    Government Settlement."
(e) In 1995, following the Merger, the Company determined that it would be
    beneficial to close certain laboratory facilities and eliminate duplicate
    functions in certain geographic regions where duplicate NHL and RBL
    facilities or functions existed at the time of the Merger. The Company
    recorded restructuring charges of $65.0 million in connection with these
    plans. See Note 3 of the Notes to Consolidated Financial Statements. Also
    in 1995, the Company recorded a pre-tax special charge of $10.0 million in
    connection with the estimated costs of settling various claims pending
    against the Company, substantially all of which were billing disputes with
    various third party payors relating to the contention that NHL improperly
    included tests for HDL cholesterol and serum ferritin in its basic test
    profile without clearly offering an alternative profile that did not
    include these medical tests. As of December 31, 1996, the majority of these
    disputes have been settled.
(f) In the fourth quarter of 1992, the Company recorded a charge against
    operating income of $136.0 million related to the 1992 NHL Government
    Settlement (as defined herein). See "Regulation and Reimbursement--OIG
    Settlement--1992 NHL Government Settlement."
(g) In 1994, the Company approved a settlement of shareholder class and
    derivative litigation. In connection with the settlement, the Company
    recorded a pre-tax special charge of $15.0 million and a $6.0 million
    charge for expenses related to the settled litigation. Insurance payments
    and payments from other defendants amounted to $55.0 million plus expenses.
    The litigation consisted of two consolidated class action suits filed in
    December 1992 and November 1993 and a consolidated shareholder derivative
    action brought in Federal and state courts in San Diego, California. The
    settlement involved no admission of wrongdoing and all payments under the
    settlement agreement have been paid.
 
                                       18
<PAGE>
 
(h) Represents a one-time pretax gain comprised of expense reimbursement and
    termination fees of $21.6 million in connection with the Company's attempt
    to purchase Damon Corporation, a competing independent clinical laboratory,
    less related expenses and write-off of certain bank financing costs of $6.3
    million.
(i) In connection with the repayment in 1995 of existing revolving credit and
    term loan facilities in connection with the Merger, the Company recorded an
    extraordinary loss of approximately $13.5 million ($8.3 million, net of
    tax), consisting of the write-off of deferred financing costs, related to
    the early extinguishment of debt.
(j) The Company made the Settlement Payment in December 1996 with the proceeds
    of the Roche Loan.
(k) EBITDA represents income (loss) before net interest expense, provision for
    income taxes, depreciation and amortization expense and extraordinary
    items. While EBITDA is not intended to represent cash flow from operations
    as defined by generally accepted accounting principles ("GAAP") (and should
    not be considered as an indicator of operating performance or an
    alternative to operating income or cash flow (as measured by GAAP)), as a
    measure of liquidity, management believes it provides additional
    information with respect to the ability of the Company to meet its future
    debt service, capital expenditure and working capital requirements. EBITDA
    may not be comparable to other measures of liquidity and excludes
    components of net income (loss) which are significant in understanding the
    Company's financial performance. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations--Liquidity and Capital
    Resources."
(l) Adjusted EBITDA represents income (loss) before net interest expense,
    provision for income taxes, depreciation and amortization, extraordinary
    items, a provision for settlements and related expenses, restructuring
    charges and nonrecurring expenses. While Adjusted EBITDA is not intended to
    represent cash flow from operations as defined by GAAP (and should not be
    considered as an indicator of operating performance or an alternative to
    operating income or cash flow (as measured by GAAP)), as a measure of
    liquidity, management believes it provides additional information with
    respect to the ability of the Company to meet its future debt service,
    capital expenditure and working capital requirements. Adjusted EBITDA may
    not be comparable to other measures of liquidity and excludes components of
    net income (loss) which are significant in understanding the Company's
    financial performance. See "Management's Discussion and Analysis of
    Financial Condition and Results of Operations--Liquidity and Capital
    Resources."
   
(m) For the purpose of calculating the ratio of earnings to combined fixed
    charges and preferred stock dividends (i) earnings consist of income before
    provision for income taxes and fixed charges and (ii) fixed charges consist
    of interest expense and one-third of rental expense which is deemed
    representative of an interest factor. For the year ended December 31, 1996,
    earnings were insufficient to cover fixed charges and preferred stock
    dividends by $188.3 million. For the year ended December 31, 1996, pro
    forma earnings would have been insufficient to cover combined fixed charges
    and preferred stock dividends by $300.5 million.     
(n) The summary unaudited pro forma consolidated balance sheet data as of
    December 31, 1996 presents the financial position of the Company adjusted
    to give pro forma effect to the Roche Loan, the Settlement Payment, the
    Rights Offering and the application of the proceeds therefrom and
    effectiveness of the Amended Credit Agreement. For a complete description
    of the assumptions underlying the pro forma amounts, see "Unaudited Pro
    Forma Financial Information."
(o) Total debt includes a capital lease obligation of $9.8 million, $9.6
    million, $9.8 million, $9.7 million and $9.6 million at December 31, 1996,
    1995, 1994, 1993 and 1992, respectively. Total debt also includes the
    expected value of future contractual and contingent amounts to be paid to
    the principals of acquired laboratories. Such payments are principally
    based on a percentage of future revenues derived from the acquired customer
    lists or specified amounts to be paid over a period of time. At December
    31, 1996, 1995, 1994, 1993 and 1992, such amounts were $27.7 million, $23.3
    million, $35.1 million, $26.8 million and $4.6 million, respectively. In
    December 1996, the Company received a loan of $187 million from Roche
    Holdings to fund the Settlement Payment. Such loan bears interest at a rate
    of 6.625% per annum and matures on March 31, 1998.
 
                                       19
<PAGE>
 
                                 RISK FACTORS
 
  In addition to the other information in this Prospectus, the following
factors should be considered carefully in evaluating an investment in the
securities offered hereby.
   
  SUBSTANTIAL LEVERAGE. Following the Rights Offering, the Company will
continue to be highly leveraged. As of December 31, 1996, after giving pro
forma effect to the Rights Offering and the application of the proceeds
therefrom, the Company would have had total indebtedness of $826.7 million and
stockholders' equity of $332.7 million. For the year ended December 31, 1996,
pro forma earnings would have been insufficient to cover combined fixed
charges and preferred stock dividends by $300.5 million. Pro forma net
interest expense for the fiscal year ended December 31, 1996 would have been
$57.2 million. The Company may incur additional indebtedness in the future,
including as a result of the exchange of the Series A Exchangeable Preferred
Stock for Notes, subject to limitations imposed by the Amended Credit
Agreement. See "Capitalization" and "Unaudited Pro Forma Financial
Statements." As a result of potential defaults under the Existing Credit
Agreement resulting from, among other things, the Company's performance and
higher than projected debt levels, the Settlement Charge and the Roche Loan,
the Company has entered into various amendments and obtained waivers of
certain covenants thereunder. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations." Borrowings under the Company's
revolving credit facility of $450.0 million (the "Revolving Credit Facility")
under the Existing Credit Agreement were $384.0 million as of March 31, 1997.
Cash and cash equivalents on hand, cash flow from operations and additional
borrowing capabilities of $66.0 million as of March 31, 1997 under the
Revolving Credit Facility are expected to be sufficient to meet anticipated
operating requirements, debt repayments and provide funds for capital
expenditures and working capital through 1997. The Company's ability to meet
anticipated operating requirements, debt repayments, including the Roche Loan
which matures on March 31, 1998, and other anticipated cash outlays beyond
1997 is substantially dependent upon the completion of the Rights Offering.
Failure to complete the Rights Offering by the end of February 1998 will
require additional waivers or amendments to the Existing Credit Agreement and
an extension of the Roche Loan. There can be no assurance that such waivers or
amendments or extension can be obtained. Therefore, the failure to complete
the Rights Offering by the end of February 1998 could have a material adverse
effect on the Company's financial condition and liquidity.     
 
  The level of the Company's indebtedness could have important consequences to
holders of the Company's securities, including but not limited to the
following: (i) a substantial portion of the Company's cash flow from
operations will be required to be dedicated to debt service and will not be
available for other purposes; (ii) the Company's ability to obtain additional
debt financing in the future for working capital and capital expenditures
could be limited; (iii) the Company may be more vulnerable to extended
economic downturns and may be restricted in exploiting business opportunities;
(iv) the Amended Credit Agreement contains financial and restrictive covenants
that limit the ability of the Company to, among other things, borrow
additional funds, dispose of assets, pay cash dividends in the event of a
default, including dividends on the Preferred Stock and pay interest on the
Notes, and failure by the Company to comply with such covenants could result
in an event of default which, if not cured or waived, could have a material
adverse effect on the Company and (v) the Company's level of indebtedness
could limit its flexibility in planning for, or reacting to, changes in market
conditions, including adverse governmental regulations (including reductions
in the amounts reimbursable to the Company under Medicare and Medicaid). See
"--Limitations on Third Party Payor Reimbursement of Health Care Costs." In
addition, pursuant to the terms of the Preferred Stock, if dividends on the
Series A Exchangeable Preferred Stock were to be limited pursuant to the
Amended Credit Agreement prior to      , 2003, the Company's ability to pay
dividends in kind on the Series B PIK Preferred Stock would also be limited.
Furthermore, the ability of the Company to satisfy its obligations will be
dependent upon its future performance and market conditions, which will be
subject to prevailing economic conditions and to financial, business and other
factors, including factors beyond the Company's control. In addition, because
the borrowings outstanding under the Amended Credit Agreement bear interest at
a floating rate, the Company's financial performance may
 
                                      20
<PAGE>
 
   
be adversely affected by increases in interest rates. The Amended Credit
Agreement provides that in the event of a reduction of the percentage of
Common Stock held by Roche Holdings and its affiliates (other than the Company
and its subsidiaries) below 25%, the applicable interest margins and facility
fees on borrowings outstanding under the Amended Credit Agreement will
increase. The amount of the increase will depend, in part, on the leverage
ratio of the Company at the time of such reduction. In addition, pursuant to
the Amended Credit Agreement, the applicable interest margins on borrowings
outstanding thereunder are based upon the leverage ratio. See "Description of
Amended Credit Agreement".     
   
  In addition, Notes issued upon exchange of the Preferred Stock will be
subordinated to all Senior Indebtedness. Following the Rights Offering,
approximately $789.1 million of Senior Indebtedness will be outstanding. There
will be no restrictions on the creation of Senior Indebtedness in the
Indenture.     
 
  LIMITATIONS ON THIRD PARTY PAYOR REIMBURSEMENT OF HEALTH CARE COSTS. The
health care industry is undergoing significant change as third party payors,
such as Medicare and Medicaid and insurers, increase their efforts to control
the cost of health care services. During the year ended December 31, 1996, the
Company derived approximately 18% and 5% of its net revenues from tests
performed for beneficiaries of Medicare and Medicaid programs, respectively.
The Company's business depends significantly on continued participation in
these programs and the Company is required by law to accept reimbursement from
Medicare and Medicaid as payment in full for covered tests performed for
Medicare and Medicaid beneficiaries. In an effort to address the problem of
increasing health care costs, legislation has been proposed at both Federal
and state levels to further regulate health care delivery in general and
clinical laboratories in particular and legislation has been enacted that
reduces the amounts reimbursable to the Company and other independent clinical
laboratories under Medicare and Medicaid, the levels of which have declined
steadily since 1984. See "Regulation and Reimbursement--General--Regulation
Affecting Reimbursement of Clinical Laboratory Services." Such reductions have
negatively impacted the Company's net sales, cost of sales as a percentage of
net sales and selling, general and administrative expenses as a percentage of
net sales. See "Management's Discussion and Analysis of Financial Condition
and Results of Operations." Congress passed a bill (the Medicare Preservation
Act) that would have further reduced the amounts reimbursable to the Company
and other clinical laboratories, but the bill was vetoed by the President. In
addition, effective January 1, 1996, HCFA adopted a new policy on
reimbursement for chemistry panel tests. As of January 1, 1996, 22 automated
tests (rather than 19 tests) became reimbursable by Medicare as part of an
automated chemistry profile. HCFA retains the authority to expand in the
future the list of tests included in a panel. Effective as of March 1, 1996,
HCFA eliminated its prior policy of permitting payment for all tests contained
in an automated chemistry panel when at least one of the tests in the panel is
medically necessary. Under the new policy, Medicare payment will not exceed
the amount that would be payable if only the tests that are "medically
necessary" had been ordered. In addition, since 1995 most Medicare carriers
have begun to require clinical laboratories to submit documentation supporting
the medical necessity, as judged by ordering physicians, for commonly ordered
tests. The Company has incurred and expects to continue to incur additional
reimbursement reductions and additional costs associated with the
implementation of these requirements of HCFA and Medicare carriers. These and
other proposed changes affecting the reimbursement policy of Medicare and
Medicaid programs could have a material adverse effect on the business,
results of operations or financial condition of the Company. In particular,
the Company has experienced lower collection rates beginning in the second
quarter of 1996 as a result of these more stringent medical necessity
requirements. See "--Collection Rates from Third Party Payors."
 
  COLLECTION RATES FROM THIRD PARTY PAYORS. During the fourth quarter of 1995
and the second quarter of 1996, the Company recorded pre-tax special charges
of $15.0 million and $10.0 million, respectively, based on the Company's
determination that additional reserves were needed to cover potentially lower
collection rates from several third-party payors. In addition, the Company
increased its monthly provision for doubtful accounts beginning in the third
quarter of 1996. Increased medical necessity and related diagnosis code
requirements of the Medicare program were placed on the Company by certain
 
                                      21
<PAGE>
 
third party carriers in late 1995 and additional requirements were placed on
the Company at the beginning of 1996. The Company expects accounts receivable
balances to continue to exceed 1995 levels as a result of these more stringent
requirements. In addition, increased difficulty in collecting amounts due from
private insurance including certain managed care plans has negatively impacted
operating cash flow. Finally, Merger related integration issues have also
resulted in increased accounts receivable balances as a result of the Company
maintaining multiple billing information systems. Although the Company
currently has plans in place to improve the collection of accounts receivable
and stabilize collection rates, to date, collection rates continue to decline
despite these measures. Moreover, additional changes in requirements of third-
party payors could increase the difficulties in collections. There can be no
assurance that such trends will be reversed or that additional reserves will
not be required. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations."
 
  ROLE OF MANAGED CARE. Managed care organizations play a significant role in
the health care industry and their role is expected to increase over the next
several years. Managed care organizations typically negotiate capitated
payment contracts, whereby a clinical laboratory receives a fixed monthly fee
per covered individual, regardless of the number or cost of tests performed
per covered individual and regardless of the number or cost of tests performed
during the month (excluding certain tests, such as esoteric tests and anatomic
pathology services). Laboratory services agreements with managed care
organizations have historically been priced aggressively due to competitive
pressure and the expectation that a laboratory would capture not only the
volume of testing to be covered under the contract, but also the additional
fee-for-services business from patients of participating physicians who are
not covered under the managed care plan. However, as the number of patients
covered under managed care plans continues to increase, there is less such
fee-for-service business and, accordingly, less high margin business to offset
the low margin (and often unprofitable) managed care business. Furthermore,
increasingly, physicians are affiliated with more than one managed care
organization and as a result may be required to refer clinical laboratory
tests to different clinical laboratories, depending on the coverage of their
patients. As a result, a clinical laboratory might not receive any fee-for-
service testing from such physicians. The increase in managed care has also
resulted in declines in the utilization of laboratory testing services. See
"Business-- Clients and Payors" and "Business--The Clinical Laboratory Testing
Industry." During the year ended December 31, 1996, services to managed care
organizations under capitated rate agreements accounted for approximately 4%
of the Company's net revenues from clinical laboratory testing and
approximately 10% of the volume of specimens or accessions tested by the
Company. As discussed below, the Company has begun an active effort to improve
the profitability of new and existing business. The Company has experienced
some volume declines as a result of this effort, however, the fourth quarter
of 1996 was the second consecutive quarter since the Merger that the Company's
price per accession or specimen did not decline versus the immediately
preceding quarter. There can be no assurance however of the timing or success
of such measures or that the Company will not lose market share to other
clinical laboratories who continue to aggressively price laboratory services
agreements with managed care organizations. In addition, despite such efforts,
the Company may experience declines in per test revenue as managed care
organizations continue to increase their share of the health care insurance
market.
   
  IMPLEMENTATION OF NEW BUSINESS STRATEGY. During the third quarter of 1996,
management began implementing a new business strategy in response to the
Company's declining performance. See "Business--Strategy." Management believes
this new business strategy may result in lower volumes as a result of
selectively repricing or discontinuing business with existing accounts which
perform below Company expectations. However, management also believes that
such measures along with other cost reduction programs will improve the
Company's overall profitability. The Company's future results and financial
condition are dependent on the successful implementation of this new business
strategy. While the Company believes that this strategy will enable it to
improve its financial results, there can be no assurance that this new
strategy will be successful, that the anticipated benefits of this new
strategy will be realized, that management will be able to implement such
strategy on a timely basis, that the Company will return to profitability
levels experienced prior to 1995 or that losses will not continue in the
future.     
 
                                      22
<PAGE>
 
  RECENT OPERATING LOSSES. Following the Merger, the Company experienced a
loss in 1995 and 1996. While such losses are largely attributable to costs
incurred in connection with the Merger, the related restructuring described
below and the Settlement Charge, there can be no assurance that losses will
not continue in the future. See "Selected Consolidated Financial Data" and
"Management's Discussion and Analysis of Financial Condition and Result of
Operations." As a result, the Company had an accumulated deficit of $0.6
million and $154.1 million as of December 31, 1995 and December 31, 1996,
respectively.
 
  RECENT RESTRUCTURING. In connection with the Merger, the Company recorded a
second quarter pre-tax special charge of $65.0 million in 1995 and $23.0
million in 1996 relating to the restructuring and integration of its
operations following the Merger. In addition, in the second quarter of 1995,
the Company had an extraordinary loss of $8.3 million, net of taxes, related
to early extinguishment of debt in connection with the Merger. While the
Company believes that these charges should be sufficient to cover all expenses
associated with the Merger and related restructuring, in the event such costs
are higher than anticipated, or additional restructuring charges are taken,
either in connection with the Merger or otherwise, this could have a material
adverse effect on the Company's results of operations or financial condition.
 
  INTENSE COMPETITION. The independent clinical laboratory industry in the
United States is intensely competitive. The following factors, among others,
are often used by health care providers in selecting a laboratory: (i) pricing
of the laboratory's testing services; (ii) accuracy, timeliness and
consistency in reporting test results; (iii) number and type of tests
performed; (iv) service capability and convenience offered by the laboratory;
and (v) its reputation in the medical community. The Company believes that in
1996 approximately 50% of the revenues of the clinical laboratory testing
industry was generated by hospital-affiliated laboratories, approximately 35%
by independent clinical laboratories and 15% by thousands of individual
physicians in their offices and laboratories. Independent clinical
laboratories fall into two separate categories: (1) smaller, generally local,
laboratories that generally offer fewer tests and services and have less
capital than the larger laboratories, and (2) larger laboratories such as the
Company that provide a broader range of tests and services. The Company has
two major competitors that operate in the national market--SmithKline Beecham
Clinical Laboratories, Inc. ("SmithKline") and Quest Diagnostics Incorporated,
formally known as Corning Clinical Laboratories ("Quest"). There are also many
independent clinical laboratories that operate regionally and that compete
with the Company in these regions. In addition, hospitals are in general both
competitors and clients of independent clinical laboratories. The independent
clinical laboratory testing industry has experienced intense price competition
over the past several years, which has negatively impacted the Company's
profitability. See "Management's Discussion and Analysis of Financial
Condition and Results of Operations." There can be no assurance that the
Company will be able to compete successfully with its existing or any new
competitors or that competitive pressures faced by the Company will not
materially and adversely affect its results of operations or financial
condition. See "Business Competition."
 
  GOVERNMENTAL REGULATION. The clinical laboratory industry is subject to
significant governmental regulation at the Federal, state and local levels.
The Company's laboratories are required to be certified or licensed under the
Clinical Laboratory Improvement Act of 1967 and the Clinical Laboratory
Improvement Amendments of 1988 (collectively, as amended, "CLIA"), and
approved to participate in the Medicare and Medicaid programs. Currently, all
clinical laboratories, including most physician-office laboratories ("POLs"),
are required to comply with CLIA. However, the Medicare Preservation Act,
passed in 1995 by both Houses of Congress, would have largely exempted POLs
from having to comply with CLIA (except with respect to pap smear tests).
Although this provision was not maintained by the House Senate conference and
was not included in the subsequent legislation, it could be reintroduced at
any time. The exemption of POLs from CLIA would significantly reduce their
costs, making them more financially viable and a greater competitive challenge
to the Company and would more likely encourage physicians to establish
laboratories in their offices.
 
                                      23
<PAGE>
 
  A wide array of Medicare/Medicaid fraud and abuse provisions apply to
clinical laboratories participating in such programs. Penalties for violations
of these Federal laws include exclusion from participation in the
Medicare/Medicaid programs, asset forfeitures and other civil and criminal
penalties. Civil penalties for a wide range of offenses may be up to $10,000
per item plus three times the amount claimed. In the case of certain offenses,
exclusion from participation in Medicare and Medicaid is a mandatory
administrative penalty. The OIG interprets these fraud and abuse
administrative provisions liberally and enforces them aggressively. Provisions
in a bill enacted in August 1996 are likely to expand the Federal government's
involvement in curtailing fraud and abuse due to the establishment of (i) an
anti-fraud and abuse trust fund funded through the collection of penalties and
fines for violations of such laws and (ii) a health care anti-fraud and abuse
task force. As part of an examination of the rapid growth of Federal
expenditures for clinical laboratory services, several Federal agencies,
including the Federal Bureau of Investigation, the OIG and the DOJ, have
investigated allegations of fraudulent and abusive conduct by health care
providers. On November 21, 1996, the Company reached a settlement with the OIG
and the DOJ regarding the prior billing practices of various of its
predecessor companies. Consistent with this overall settlement, the Company
paid $187 million to the Federal Government in December 1996 with proceeds
from a loan from Roche Holdings. Additional investigations by the OIG in 1992
and 1994 were settled for $111.4 million in 1992 and $4.9 million in 1995,
respectively. See "Regulation and Reimbursement--OIG Investigations."
 
  The Company is also subject to licensing and regulation under Federal, state
and local laws and regulations relating to the protection of the environment
and human health and safety, including those relating to the handling,
transportation and disposal of medical specimens, infectious and hazardous
waste and radioactive materials as well as to the safety and health of
laboratory employees. The sanction for failure to comply with these
regulations may be denial of the right to conduct business, significant fines
and criminal penalties. The loss of a license, imposition of a fine,
incurrence of liability under, or future changes in, such Federal, state and
local laws and regulations (or in the interpretation of current laws and
regulations) could have a material adverse effect on the Company and its
subsidiaries.
 
  PROFESSIONAL LIABILITY LITIGATION. As a general matter, providers of
clinical laboratory testing services may be subject to lawsuits alleging
negligence or other similar legal claims, which suits could involve claims for
substantial damages. Damages assessed in connection with, and the costs of
defending any such actions could be substantial. Litigation could also have an
adverse impact on the Company's client base. The Company maintains liability
insurance (subject to maximum limits and self-insured retentions) for
professional liability claims. This insurance does not cover liability for the
Settlement Payment. While there can be no assurance, the Company's management
believes that the levels of coverage are adequate to cover currently estimated
exposures. Although the Company believes that it will be able to obtain
adequate insurance coverage in the future at acceptable costs, there can be no
assurance that the Company will be able to obtain such coverage or will be
able to do so at an acceptable cost or that the Company will not incur
significant liabilities in excess of policy limits.
 
  NO ASSURANCE OF DIVIDENDS-RECEIVED DEDUCTION. There is no assurance that the
Company will have earnings and profits for Federal income tax purposes.
Dividends paid to corporate holders that are in excess of the Company's
earnings and profits would not qualify for the intercorporate dividends-
received deduction. See "Certain Federal Income Tax Consequences."
   
  SUBSTANTIAL STOCKHOLDER; ABILITY OF SUBSTANTIAL STOCKHOLDER TO INCREASE
OWNERSHIP. As a result of the Merger, HLR and Roche Holdings received 49.9% of
the total outstanding Common Stock of the Company. In connection with the
Merger, the Company, HLR, Roche Holdings and Hoffmann--La Roche Inc. entered
into the Stockholder Agreement. In December of 1996, HLR was merged with and
into Roche Holdings. As a result of its ownership interest and its rights
under the Stockholder Agreement, Roche is able to exercise significant
influence on the governance of the Company and on the composition of its board
of directors. Pursuant to the Stockholder Agreement, the Board of Directors of
the Company (subject to specified exceptions) is comprised of seven members,
consisting of three designees of Roche     
 
                                      24
<PAGE>
 
   
Holdings (the "Roche Directors") and four Independent Directors (as defined
therein) nominated by the Nominating Committee of the board of directors. The
Nominating Committee consists of one Roche Director and two Independent
Directors and acts by a majority vote of the entire committee. There can be no
assurance that the interests of Roche Holdings will be the same as those of
the other stockholders of the Company. Pursuant to the Stockholder Agreement,
Roche Holdings and its affiliates (other than the Company and its
subsidiaries) have the right to acquire Equity Securities (as defined therein)
to the extent that, after giving effect thereto, their Total Voting Power
would not exceed 75%. Moreover, Roche Holdings and its affiliates (other than
the Company and its subsidiaries) may acquire additional Equity Securities
notwithstanding the fact that after giving effect thereto, their Total Voting
Power would exceed 75%, if Roche Holdings and its affiliates (other than the
Company and its subsidiaries) or any one of them offers, prior to consummation
of such purchase, to purchase all outstanding Equity Securities and holders of
Equity Securities totaling more than 50% of the outstanding Equity Securities
(excluding Equity Securities held by Roche Holdings and its affiliates (other
than the Company and its subsidiaries)) accept such offer. After the third
anniversary of the Merger, the Stockholder Agreement does not restrict
purchases by Roche Holdings or its affiliates of Equity Securities. Certain
provisions of the Stockholder Agreement described above, including provisions
limiting Roche Holding's representation on the Board of Directors of the
Company to three of seven members, would be suspended if the Total Voting
Power of Roche Holdings and its affiliates (other than the Company and its
subsidiaries) were to be increased to over 50%. Roche Holdings has indicated
that it intends to exercise its Basic Subscription Privilege and
Oversubscription Privilege in the Rights Offering in full for Series B PIK
Preferred Stock (subject, in the case of the Oversubscription Privilege, to
reduction in certain circumstances). As a result, if no other Rights are
exercised, Roche Holdings will purchase 10,000,000 shares of Series B PIK
Preferred Stock. Consequently, following conversion of all of the Preferred
Stock, Roche Holdings will own a minimum of 49.9% and a maximum of   % of the
total outstanding Common Stock of the Company. See "Certain Relationships and
Related Transactions--The Stockholder Agreement." In addition, as Roche
Holdings will own a minimum of 49.9% of the Preferred Stock, it will be in a
position to exert significant influence on any matter on which the Preferred
Stock is entitled to vote. See "Description of Preferred Stock--Voting
Rights."     
   
  SPECIAL MAJORITY BOARD APPROVAL REQUIRED FOR CERTAIN ACTIONS. Under the
Stockholder Agreement, for so long as the Total Voting Power of Roche Holdings
and its affiliates (other than the Company and its subsidiaries) or any one of
them is at least 30%, a significant number of types of major corporate actions
cannot be taken without the approval of a Special Majority of the Board of
Directors (which is defined in the Stockholder Agreement as a majority of the
entire Board of Directors that includes a majority of the Roche Directors and
at least one Independent Director). These actions include, among others,
certain executive officer appointments, certain business combinations,
acquisitions or sales of assets, amendments to the Company's Certificate of
Incorporation or by-laws, settlements of material litigation, changes in Board
or committee composition, material capital expenditures, issuance of
securities and incurrence of indebtedness.     
 
  EQUITY MARKET CONSIDERATIONS. There can be no assurance that the market
price of the Common Stock will not decline during or after the subscription
period or that, following the issuance of the Rights and the sale of the
Preferred Stock upon exercise of Rights, a subscribing Rights Holder will be
able to sell shares purchased in the Rights Offering at a price greater than
the Subscription Price. The election of a Rights Holder to exercise Rights in
the Rights Offering is irrevocable. Moreover, until certificates are
delivered, subscribing Rights Holders may not be able to sell the Preferred
Stock that they have purchased in the Rights Offering. In addition, the
Company reserves the right to extend the period for the Rights Offering to a
date not later than    , 1997. Certificates representing shares of Preferred
Stock purchased in the Rights Offering will be delivered as soon as
practicable after the Expiration Date. There can be no assurance that the
market price of the Preferred Stock purchased pursuant to the Rights
 
                                      25
<PAGE>
 
Offering will not decline below the Subscription Price before the certificates
representing such shares have been delivered. No interest will be paid to any
subscriber in the Rights Offering.
 
  NO PRIOR MARKET FOR THE RIGHTS, THE PREFERRED STOCK OR THE NOTES. The
Rights, Series A Exchangeable Preferred Stock and Series B PIK Preferred Stock
constitute new issues of securities with no established trading market.
Application has been made to have the Preferred Stock approved for listing on
the New York Stock Exchange. It is unlikely, however, that the Series B PIK
Preferred Stock will be accepted for listing on the NYSE as it is expected
that following the Rights Offering the Series B PIK Preferred Stock will be
held by fewer than 100 holders. In addition, there can be no assurance that an
active market for the Rights or the Series A Exchangeable Preferred Stock will
develop or be sustained in the future on the New York Stock Exchange. Although
Credit Suisse First Boston has indicated to the Company that it intends to
make a market in the Rights, and, following the Rights Offering, the Preferred
Stock, as permitted by applicable laws and regulations, it is not obligated to
do so and may discontinue any such market-making at any time without notice.
Accordingly, no assurance can be given as to the liquidity of, or trading
market for, the Rights or the Preferred Stock, particularly the Series B PIK
Preferred Stock.
 
  There is currently no market for the Notes. The Company does not intend to
apply for listing of the Notes on any national securities exchange. The
Company has been advised by Credit Suisse First Boston that, following
exchange of the Series A Exchangeable Preferred Stock for Notes, they
presently intend to make a market in the Notes although they are under no
obligation to do so and may discontinue market-making activities at any time
without notice. Accordingly, there can be no assurance as to whether an active
public market for the Notes will develop or, if a public market develops, as
to the liquidity of the trading market for the Notes.
   
  INSUFFICIENT AUTHORIZED CAPITAL TO PERMIT CONVERSION AND PAYMENT OF
DIVIDENDS ON SERIES B PIK PREFERRED STOCK; DILUTION. There are currently
insufficient shares of Common Stock authorized to permit conversion of all of
the Preferred Stock issued upon the exercise of Rights or as dividends on the
Series B PIK Preferred Stock and insufficient shares of Preferred Stock
authorized to permit the payment of dividends on the Series B PIK Preferred
Stock. In connection with the next annual meeting of shareholders currently
scheduled for     , 1997, the Board of Directors will propose amending the
Company's Certificate of Incorporation to increase (i) the authorized number
of shares of Common Stock to permit the conversion of all of the Preferred
Stock and the Notes, if applicable and (ii) the authorized number of shares of
Preferred Stock to permit the payment of dividends on the Series B PIK
Preferred Stock. Roche Holdings and the directors and executive officers of
the Company have indicated to the Company that they intend to vote in favor of
such amendment. Rights Holders may experience dilution of their percentage of
equity ownership interest and voting power in the Company if and when all of
the shares of Preferred Stock are converted into shares of Common Stock in
accordance with their terms, if they do not exercise the Basic Subscription
Privilege. Even if the Rights Holders exercise their Basic Subscription
Privilege in full, they may nevertheless still experience dilution in their
voting rights and in their proportional interest in any future net earnings of
the Company if other holders of Rights exercise the Oversubscription Privilege
and such Rights Holders elect not to exercise the Oversubscription Privilege,
if and when all of the shares of Preferred Stock are converted into shares of
Common Stock in accordance with their terms. In addition, Rights Holders who
exercise Rights for Series A Exchangeable Preferred Stock will experience
dilution as dividends on the Series B PIK Preferred Stock are paid in shares
of Series B PIK Preferred Stock.     
 
  SHARES OF COMMON STOCK ELIGIBLE FOR FUTURE SALE. In accordance with the
Sharing and Call Option Agreement dated as of December 13, 1994 (the "Sharing
and Call Option Agreement") among HLR, Mafco Holdings Inc. ("Mafco"), all of
the capital stock of which is owned by Mr. Ronald O. Perelman and National
Healthcare Group, Inc., ("NHCG"), a wholly owned subsidiary of Mafco, the
Company has filed with the Commission a registration statement on Form S-3
which has been declared effective by the
 
                                      26
<PAGE>
 
   
Commission and includes a resale prospectus that permits NHCG (or any of its
pledgees) to sell shares of Common Stock and Warrants received by NHCG in the
Merger without restriction. Moreover, pursuant to the Stockholder Agreement
and the Sharing and Call Option Agreement, Roche Holdings and NHCG have been
granted demand and piggy-back registration rights with respect to shares of
Common Stock owned by them. In addition, in connection with the Rights
Offering, the Company will grant to each Rights Holder (including Roche
Holdings) who upon consummation of the Rights Offering beneficially owns
Preferred Stock convertible into 10% or more of the Common Stock outstanding,
and who certifies as such, registration rights with respect to such Common
Stock on the same terms as those granted to Roche Holdings pursuant to the
Stockholder Agreement. Roche Holdings on the one hand and NHCG on the other
hand currently own 49.9% and 11.8%, respectively, of the outstanding Common
Stock of the Company. Although the Company cannot make any prediction as to
the effect, if any, that sales in the public market of shares of Common Stock
owned by Roche Holdings and NHCG would have on the market price for the
Preferred Stock or Common Stock prevailing from time to time, sales of
substantial amounts of Common Stock or the availability of such shares for
sale could adversely affect prevailing market prices.     
       
       
  VOLATILITY OF PRICE OF COMMON STOCK. The market price of the Company's
Common Stock has been highly volatile in recent years and on January 7, 1997
reached a 52-week low of $2 1/2. Factors such as quarter-to-quarter variations
in the Company's revenues and earnings have caused and are expected to
continue to cause the market price of the Company's securities to fluctuate
significantly. In addition, in recent years the stock markets have experienced
significant volatility, which often may be unrelated to the operating
performance of the affected companies. Such volatility may also adversely
affect the market price of the Company's securities. See "Common Stock Price
Range."
 
FORWARD LOOKING STATEMENTS
 
  This Prospectus contains certain forward looking statements concerning the
Company's operations, economic performance and financial condition, including,
in particular, forward looking statements regarding the Company's expectation
of future performance following implementation of its new business strategy,
consummation of the Rights Offering and effectiveness of the Amended Credit
Agreement. Such statements are subject to various risks and uncertainties.
Actual results could differ materially from those currently anticipated due to
a number of factors, including those identified under "Risk Factors," under
"Management's Discussion and Analysis of Financial Condition and Results of
Operations" and elsewhere in this Prospectus.
 
                                      27
<PAGE>
 
                                USE OF PROCEEDS
   
  The gross proceeds of the Rights Offering will be used to (i) repay
approximately $294 million outstanding under the Existing Credit Agreement
which bears interest at LIBOR plus 1.0% per annum, (ii) pay fees and expenses
of approximately $13 million related to the Rights Offering and (iii) repay
the $187 million loan from Roche Holdings in order to fund the Settlement
Payment, which bears interest at 6.625% per annum and matures on March 31,
1998 plus accrued interest thereon of approximately $6 million.     
 
                           COMMON STOCK PRICE RANGE
 
  The Company's Common Stock is traded publicly on the New York Stock Exchange
under the symbol "LH." The following table sets forth for the calendar periods
indicated the high and low sales prices for the Common Stock reported on the
NYSE Composite Tape.
 
<TABLE>   
<CAPTION>
                                                                    High         Low
                                                                   ------       ------
<S>                                                                <C>          <C>
1995                                                                            
  First Quarter................................................... 15 1/2       12 5/8
  Second Quarter.................................................. 15 1/4       11 3/4
  Third Quarter................................................... 14            9 1/8
  Fourth Quarter.................................................. 10            8 1/8
1996                                                                            
  First Quarter...................................................  9 3/8        7 1/4
  Second Quarter..................................................  9            7 3/8
  Third Quarter...................................................  7 5/8        3 1/4
  Fourth Quarter..................................................  3 7/8        2 3/8
1997                                                                            
  First Quarter...................................................  4            2 1/2
  Second Quarter (through May 1, 1997)............................  3 3/8        2 3/4
</TABLE>    
   
  On May 1, 1997 there were approximately 959 holders of record of the Common
Stock.     
 
                                DIVIDEND POLICY
   
  In connection with the Allied Acquisition in June 1994, the Company
discontinued its dividend payments for the foreseeable future. The Amended
Credit Agreement will expressly permit cash dividends including cash dividends
on the Preferred Stock in the absence of a default. However, pursuant to the
terms of the Preferred Stock, if dividends on the Series A Exchangeable
Preferred Stock were to be limited pursuant to the Amended Credit Agreement
prior to     , 2003, the Company's ability to pay dividends in kind on the
Series B PIK Preferred Stock would also be limited.     
 
                                      28
<PAGE>
 
                                CAPITALIZATION
 
  The following table sets forth as of December 31, 1996, (i) the cash and
cash equivalents and total capitalization of the Company and (ii) cash and
cash equivalents and total capitalization, adjusted to give pro forma effect
to the Rights Offering, the execution of the Amended Credit Agreement, the
Roche Loan and the Settlement Payment. The proceeds of the Rights Offering are
assumed to be applied as set forth under "Use of Proceeds." See also
"Unaudited Pro Forma Financial Statements." This table should be read in
conjunction with the Consolidated Financial Statements of the Company included
elsewhere and incorporated by reference herein.
 
<TABLE>   
<CAPTION>
                                                     As of December 31, 1996
                                                     ---------------------------
                                                       Actual      As Adjusted
                                                     -----------  --------------
                                                          (in millions)
<S>                                                  <C>          <C>
Cash and cash equivalents........................... $      29.3   $      25.0
                                                     ===========   ===========
Short-term debt:
  Current portion of long-term debt(1).............. $      18.7   $      18.7
  Current portion of acquisition contingent
   payments.........................................        12.9          12.9
                                                     -----------   -----------
    Total short-term debt...........................        31.6          31.6
Long-term debt:
  Loan from affiliate(2)............................       187.0           --
  Revolving credit facility.........................       371.0         126.7
  Long-term debt, less current portion..............       693.8         643.8
  Capital lease obligations.........................         9.8           9.8
  Acquisition contingent payments, less current
   portion..........................................        14.8          14.8
                                                     -----------   -----------
    Total long-term debt............................     1,276.4         795.1
Mandatorily redeemable preferred stock, $0.10 par
 value, 10,000,000 shares authorized, none issued
 and outstanding actual; 10,000,000 shares issued
 and outstanding as adjusted(3).....................         --          409.0
Stockholders' equity:
  Common stock, par value $0.01 per share,
   220,000,000 shares authorized; 122,935,080 shares
   issued and outstanding(3)........................         1.2           1.2
Additional paid-in capital(4).......................       411.0         489.0
Accumulated deficit.................................      (154.1)       (157.5)
                                                     -----------   -----------
    Total stockholders' equity......................       258.1         332.7
                                                     -----------   -----------
    Total capitalization............................ $   1,566.1   $   1,568.4
                                                     ===========   ===========
</TABLE>    
- --------
(1) In January 1997, the Company made a payment of $18.7 million on its Term
    Loan Facility.
(2) In December 1996, the Company received a loan of $187 million from Roche
    Holdings to fund the Settlement Payment.
   
(3) There are currently insufficient shares of Common Stock authorized to
    permit conversion of all of the Preferred Stock issued upon the exercise
    of Rights or as dividends on the Series B PIK Preferred Stock and
    insufficient shares of Preferred Stock authorized to permit the payment of
    dividends on the Series B PIK Preferred Stock. In connection with the next
    annual meeting of shareholders currently scheduled for    , 1997, the
    Board of Directors will propose amending the Company's Certificate of
    Incorporation to increase (i) the authorized number of shares of Common
    Stock to permit the conversion of all of the Preferred Stock and the
    Notes, if applicable and (ii) the authorized number of shares of Preferred
    Stock to permit the payment of dividends on the Series B PIK Preferred
    Stock. Roche Holdings and the directors and executive officers of the
    Company have indicated to the Company that they intend to vote in favor of
    such amendment.     
   
(4) The change in additional paid-in capital reflects the estimate of costs to
    be incurred in connection with the Rights Offering and the pro forma
    Imputed Dividend on the Preferred Stock.     
 
                                      29
<PAGE>
 
                   UNAUDITED PRO FORMA FINANCIAL STATEMENTS
 
  The unaudited pro forma consolidated financial statements for the year ended
December 31, 1996 present the results of operations of the Company assuming
that the Roche Loan, the Settlement Payment, the Rights Offering and
effectiveness of the Amended Credit Agreement had occurred as of the beginning
of the period, in the case of the pro forma statement of operations, or
December 31, 1996, in the case of the pro forma balance sheet. The proceeds of
the Rights Offering have been assumed to be applied as set forth under "Use of
Proceeds". In the opinion of management, the unaudited pro forma financial
statements for the year ended December 31, 1996 include all material
adjustments necessary to restate the Company's historical results. The
adjustments required to reflect such assumptions are described in the Notes to
the unaudited pro forma financial statements and are set forth in the "Pro
Forma Adjustments" columns.
 
  The pro forma financial statements should be read in conjunction with the
Consolidated Financial Statements and notes thereto included elsewhere and
incorporated by reference herein. The pro forma financial statements presented
are for informational purposes only and may not necessarily reflect the future
results of operations or financial position or what the results of operations
or financial position would have been had the Roche Loan, the Settlement
Payment, the Rights Offering and effectiveness of the Amended Credit Agreement
occurred as assumed herein.
 
                                      30
<PAGE>
 
       PRO FORMA CONDENSED COMBINED CONSOLIDATED STATEMENT OF OPERATIONS
                          Year ended December 31, 1996
                    (Dollars in millions, except share data)
                                  (Unaudited)
 
<TABLE>   
<CAPTION>
                          Historical             Pro Forma Adjustments
                          ---------- -----------------------------------------------
                           Company   Roche Loan   Rights Offering Pro Forma Combined
                          ---------- ----------   --------------- ------------------
<S>                       <C>        <C>          <C>             <C>
Net sales...............   $1,607.7                                    $1,607.7
Cost of sales...........    1,183.9                                     1,183.9
                           --------                                    --------
Gross profit............      423.8                                       423.8
Selling, general and
 administrative
 expenses...............      305.0                                       305.0
Amortization of
 intangibles and other
 assets.................       29.6                                        29.6
Restructuring and other
 non-recurring charges..       23.0                                        23.0
Provisions for
 settlements and related
 expenses...............      185.0                                       185.0
                           --------                                    --------
  Operating loss........     (118.8)                                     (118.8)
Other income (expenses):
  Investment income.....        2.2                                         2.2
  Interest expense......      (71.7)   $(12.4)(1)     $  24.7(2)          (59.4)
                           --------    ------         -------          --------
Loss before income
 taxes..................     (188.3)    (12.4)           24.7            (176.0)
Provision for income
 taxes..................      (34.8)     (5.0)(3)         9.9(3)          (29.9)
                           --------    ------         -------          --------
Net loss................     (153.5)     (7.4)           14.8            (146.1)
Less preferred stock
 dividend(4)............        --        --           (103.4)           (103.4)
                           --------    ------         -------          --------
Net loss applicable to
 common shares..........   $ (153.5)   $ (7.4)        $ (88.6)         $ (249.5)
                           ========    ======         =======          ========
Primary loss per common
 share(5)...............   $  (1.25)                                   $  (2.03)
                           ========                                    ========
Fully diluted loss per
 common share(5)........   $  (1.25)                                   $  (2.03)
                           ========                                    ========
Weighted average common
 shares outstanding
 (thousands)(5):
  Primary...............    122,920                                     122,920
  Fully diluted.........    122,920                                     307,696
Ratio of earnings to
 combined fixed charges
 and preferred stock
 dividends(6)...........         NM                                          NM
</TABLE>    
- --------
 
 See accompanying Notes to Pro Forma Condensed Combined Consolidated Statements
                                 of Operations.
 
                                       31
<PAGE>
 
  NOTES TO PRO FORMA CONDENSED COMBINED CONSOLIDATED STATEMENTS OF OPERATIONS
 
(1) In December 1996, Roche Holdings loaned $187.0 million to the Company to
    fund the Settlement Payment in the form of a promissory note. Such note
    bears interest at a rate of 6.625% per annum and matures on March 31,
    1998. Such note is assumed to be outstanding at the beginning of the
    period and then repaid with proceeds from the Rights Offering. See Note 2
    below.
   
(2) Assumes the sale of approximately $250 million in Series B PIK Preferred
    Stock to Roche Holdings and approximately $250 million in Series A
    Exchangeable Preferred Stock to all other Rights Holders and the
    application of the proceeds therefrom to (i) repay the Roche Loan, (ii)
    pay fees and expenses of $15 million related to the Amended Credit
    Agreement and the Rights Offering and (iii) repay approximately $248
    million under the Revolving Credit Facility and $50 million under the Term
    Loan Facility. The pro forma adjustment to interest expenses (based on the
    interest rate assumptions shown below) reflects the following:     
 
<TABLE>   
<CAPTION>
                                                                    Year ended
                                                                     12/31/96
                                                                   -------------
                                                                   (in millions)
      <S>                                                          <C>
      Paydown of Roche Loan.......................................     $12.4
      Paydown of Revolving Credit Facility........................      15.1
      Paydown on Term Loan Facility...............................       3.2
      Incremental interest under Amended Credit Agreement.........      (4.2)
      Amortization of deferred financing costs....................      (0.7)
      Commitment fee on Amended Credit Agreement..................      (1.1)
                                                                       -----
                                                                       $24.7
                                                                       =====
</TABLE>    
 
    The interest rate assumptions used in the foregoing were as follows:
 
<TABLE>
<CAPTION>
                                                                      Year ended
                                                                       12/31/96
                                                                      ----------
      <S>                                                             <C>
      Roche Loan.....................................................   6.625%
      Term Loan Facility.............................................   6.451%
      Revolving Credit Facility......................................   6.201%
      Incremental interest under Amended Credit Agreement............   0.625%
      Commitment fee on Amended Credit Agreement.....................   0.250%
</TABLE>
 
    Incremental interest under the Amended Credit Agreement is calculated
  based on (i) an average Revolving Credit Facility balance outstanding
  during the period of $309.0 million times 0.625% and (ii) 0.625% times the
  actual balance outstanding under the Term Loan Facility of $783.3 million
  on January 1, 1996 less principal payments of $16.7 million on January 31,
  1996, $16.7 million on April 30, 1996, $18.7 million on July 31, 1996 and
  $18.7 million on October 31, 1996.
 
    The amortization of deferred financing costs is calculated based on total
  deferred financing costs of $4.3 million and a weighted average life under
  the Amended Credit Agreement of 6.3 years.
 
    The commitment fee on the Amended Credit Agreement is calculated based on
  a commitment of $450 million under the Amended Revolving Credit Facility
  times 0.25%.
 
    An increase or decrease in the interest rate of one-quarter of one
  percent (0.25%) with respect to the pro forma debt capitalization of the
  Company would increase or decrease interest expense as follows:
 
<TABLE>   
<CAPTION>
                                                                    Year ended
                                                                     12/31/96
                                                                   -------------
                                                                   (in millions)
      <S>                                                          <C>
      Revolving Credit Facility...................................     $ 0.3
      Term Loan Facility..........................................       1.7
</TABLE>    
 
                                      32
<PAGE>
 
(3) Reflects the change in the provision for income taxes as a result of the
    pro forma adjustments. Such tax adjustments were based on the historical
    effective tax rates used for the Company's consolidated financial
    statements.
(4) Dividends on Series B PIK Preferred Stock and Series A Exchangeable
    Preferred Stock are calculated as follows:
     
  (A)Quarterly Dividends     
<TABLE>   
<CAPTION>
                                                                  Series A
                                               Series B PIK     Exchangeable
                                            Preferred Stock(a) Preferred Stock
                                            ------------------ ---------------
                                              (in millions)     (in millions)
      <S>                                   <C>                <C>
      Total liquidation preference.........      $ 250.0           $ 250.0
      Assumed dividend rate................          8.5%              8.5%
      Dividends Quarter ended March 31,
       1996................................      $   5.3           $   5.3
           Quarter ended June 30, 1996.....          5.4               5.3
           Quarter ended September 30,
           1996............................          5.6               5.3
           Quarter ended December 31,
           1996............................          5.7               5.3
                                                 -------           -------
                                                 $  22.0           $  21.2
                                                 =======           =======
</TABLE>    
          
  (B) Assuming a conversion price of $2.75 in light of the closing market
      price of the Common Stock as of May 1, 1997 of $3.25 results in a
      discount that must be amortized as a preferred dividend from the date
      of issuance, (which is assumed to be January 1, 1996) through the date
      the Preferred Stock is first convertible into shares of Common Stock.
      The Series A Exchangeable Preferred Stock is assumed to be convertible
      after 90 days and the Series B PIK Preferred Stock is assumed to be
      convertible after three years. The Imputed Dividend upon issuance of
      both series of Preferred Stock is calculated as follows:     
       
            
<TABLE>   
<CAPTION>
                                                   Series A
                                                 Exchangeable    Series B PIK
                                                Preferred Stock Preferred Stock
                                                --------------- ---------------
      <S>                                       <C>             <C>
      Total liquidation preference (in
       millions)..............................     $  250.0        $  250.0
      Common shares to be issued upon
       conversion (in thousands)..............     90,909.1        90,909.1
      Imputed Dividend per common share.......     $   0.50        $   0.50
                                                   --------        --------
          Total Imputed Dividend..............     $   45.5        $   45.5
      Imputed Dividend amortization
        Series A Exchangeable Preferred
         Stock................................     $   45.5
        Series B PIK Preferred Stock..........         14.2(b)
        Series B PIK Preferred Stock dividends
         issued...............................          0.6(c)
                                                   --------
                                                   $   60.2
                                                   ========
</TABLE>    
     --------
        
     (a) Dividends on Series B PIK Preferred Stock are calculated based on
         the initial shares outstanding after the Rights Offering and, in
         subsequent quarters, on additional shares issued as paid-in-kind
         dividends.     
        
     (b) Reflects amortization of the Imputed Dividend based on an
         effective interest rate of 6.75%.     
        
     (c) Reflects additional Imputed Dividend on Series B PIK Preferred
         Stock dividends issued with conversion prices at less that the
         market value of the Common Stock on the date of issuance which is
         assumed to be $3.25.     
 
                                      33
<PAGE>
 
   
  The conversion rate will be considered by the Company, in consultation with
Credit Suisse First Boston. Among the factors to be considered by the Board of
Directors in determining the conversion rate will be (i) the market value of
the Common Stock; (ii) the present and projected operating results and
financial condition of the Company; (iii) an assessment of the Company's
management and management's analysis of the growth potential of the Company
and of the Company's market area; (iv) the aggregate size of the Rights
Offering; and (v) the conversion rate which the Board of Directors believes
investors would readily accept under current economic circumstances.     
   
(5) The primary and fully diluted shares assuming that Roche Holdings
    purchases approximately $250 million of Series B PIK Preferred Stock and
    that the remaining Rights Holders purchase approximately $250 million in
    Series A Exchangeable Preferred Stock, are calculated as follows:     
 
<TABLE>
<CAPTION>
                                                                  Year ended
                                                                   12/31/96
                                                                --------------
                                                                (in thousands)
      <S>                                                       <C>
      Historical weighted average shares outstanding...........    122,920
      Weighted average shares used for primary earnings per
       share...................................................    122,920
      Common Stock issuable upon conversion of Preferred
       Stock...................................................    181,818
      Common Stock issuable upon conversion of PIK dividend....      2,958
      Weighted average shares used for diluted earnings per
       share...................................................    307,696
</TABLE>
     
    The primary and fully diluted shares, assuming that Roche Holdings
  purchases $500 million of Series B PIK Preferred Stock, are calculated as
  follows:     
 
<TABLE>
<CAPTION>
                                                                  Year ended
                                                                   12/31/96
                                                                --------------
                                                                (in thousands)
      <S>                                                       <C>
      Historical weighted average shares outstanding...........    122,920
      Weighted average shares used for primary earnings per
       share...................................................    122,920
      Common Stock issuable upon conversion of Preferred
       Stock...................................................    181,818
      Common Stock issuable upon conversion of PIK dividend....      5,916
      Weighted average shares used for diluted earnings per
       share...................................................    310,654
</TABLE>
   
(6) For the year ended December 31, 1996, actual and pro forma earnings would
    have been insufficient to cover combined fixed charges and preferred stock
    dividends by $188.3 million and $300.5 million, respectively.     
 
                                      34
<PAGE>
 
            PRO FORMA CONDENSED COMBINED CONSOLIDATED BALANCE SHEET
                            As of December 31, 1996
                             (Dollars in millions)
                                  (Unaudited)
 
<TABLE>   
<CAPTION>
                                                       Pro Forma    Pro Forma
                                             Actual   Adjustments   Combined
                                            --------  -----------   ---------
<S>                                         <C>       <C>           <C>
ASSETS
Current assets:
  Cash and cash equivalents................ $   29.3    $  (4.3)(1) $   25.0
  Accounts receivable, net.................    505.6                   505.6
  Inventories..............................     44.3                    44.3
  Prepaid expenses and other...............     21.8                    21.8
  Deferred income taxes....................     66.2                    66.2
  Income taxes receivable..................     54.3                    54.3
                                            --------    -------     --------
    Total current assets...................    721.5       (4.3)       717.2
Property, plant and equipment, net.........    282.9                   282.9
Intangible assets, net.....................    891.1                   891.1
Other assets, net..........................     21.5        4.3 (1)     25.8
                                            --------    -------     --------
                                            $1,917.0    $   --      $1,917.0
                                            ========    =======     ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable......................... $   65.7                $   65.7
  Accrued expenses and other...............    168.4    $  (2.3)(4)    166.1
  Current portion of long-term debt........     18.7                    18.7(3)
                                            --------    -------     --------
    Total current liabilities..............    252.8       (2.3)       250.5
Loan from affiliate........................    187.0     (192.7)(5)      --
                                                            5.7 (4)
Revolving credit facility..................    371.0     (244.3)(5)    126.7
Long-term debt, less current portion.......    693.8      (50.0)(5)    643.8
Capital lease obligation...................      9.8                     9.8
Other liabilities..........................    144.5                   144.5
Mandatorily redeemable preferred stock.....      --       409.0 (5)    409.0
Stockholders' equity:
  Common stock.............................      1.2                     1.2
  Additional paid-in capital...............    411.0      (13.0)(2)    489.0
                                                           91.0 (5)
  Accumulated deficit......................   (154.1)      (3.4)(4)   (157.5)
                                            --------    -------     --------
    Total stockholders' equity.............    258.1       74.6        332.7
                                            --------    -------     --------
                                            $1,917.0    $   --      $1,917.0
                                            ========    =======     ========
</TABLE>    
 
  See accompanying Notes to Pro Forma Condensed Combined Consolidated Balance
                                     Sheet
 
                                       35
<PAGE>
 
       NOTES TO PRO FORMA CONDENSED COMBINED CONSOLIDATED BALANCE SHEET
   
(1) Reflects fees and expenses of $4.3 million in connection with the Amended
    Credit Agreement which have been capitalized as deferred financing costs
    and included in the caption "Other assets". These amounts were paid on
    March 31, 1997.     
   
(2) Reflects estimated fees and expenses of $13.0 million in connection with
    the Rights Offering. These are deemed to be stock offering costs and are
    charged against additional paid-in capital.     
   
(3) In January 1997, the Company made a payment of $18.7 million on the Term
    Loan Facility.     
   
(4) In December 1996, Roche Holdings loaned $187.0 million to the Company to
    fund the Settlement Payment in the form of a promissory note. Such note
    bears interest at a rate of 6.625% per annum and matures on March 31,
    1998. Such note and estimated accrued interest of $5.7 million (through
    June 15, 1997) thereon are assumed to be repaid with a portion of the
    proceeds from the Rights Offering.     
   
(5) Reflects the issuance of approximately $500 million of Preferred Stock in
    the Rights Offering and the application of the proceeds therefrom.
    Approximately $91.0 million of the proceeds are deemed to be Imputed
    Dividend resulting from a conversion price of the Preferred Stock which is
    approximately $0.50 less than the current market value of the Common
    Stock. Such Imputed Dividend will be amortized as a preferred dividend
    from the date of issuance through the date the Preferred Stock is first
    convertible.     
 
                                      36
<PAGE>
 
                      SELECTED HISTORICAL FINANCIAL DATA
 
  The following table presents selected historical financial data of the
Company at the dates and for each of the periods indicated. The selected
financial data as of and for each of the years ended December 31, 1996, 1995
and 1994 have been derived from the Consolidated Financial Statements and the
notes thereto included elsewhere and incorporated by reference herein. See
also "Management's Discussion and Analysis of Financial Condition and Results
of Operations."
 
<TABLE>   
<CAPTION>
                                               Year Ended December 31,
                          --------------------------------------------------------------
                             1996        1995(a)       1994(b)        1993        1992
                          ----------    -----------   -----------   --------    --------
                                   (DOLLARS IN MILLIONS, EXCEPT PER SHARE AMOUNTS)
<S>                       <C>           <C>           <C>           <C>         <C>
STATEMENT OF OPERATIONS
 DATA:
Net sales...............  $  1,607.7    $  1,432.0    $  872.5      $  760.5    $  721.4
Cost of sales...........     1,183.9       1,024.3       597.0         444.5       395.1
                          ----------    ----------    --------      --------    --------
Gross profit............       423.8         407.7       275.5         316.0       326.3
Selling general and
 administrative
 expenses...............       305.0         238.5       149.3         121.4       117.9
Amortization of
 intangibles and other
 assets.................        29.6          27.0        16.3           9.1         8.3
Restructuring and non-
 recurring charges......        23.0(c)       65.0(d)      --            --          --
Provision for
 settlements and related
 expenses...............       185.0(c)       10.0(d)      --            --        136.0(e)
                          ----------    ----------    --------      --------    --------
Operating income
 (loss).................      (118.8)         67.2       109.9         185.5        64.1
Litigation settlement
 and related expenses...         --            --        (21.0)(f)       --          --
Other gains and
 expenses, net..........         --            --          --           15.3(g)      --
Net interest income
 (expense)..............       (69.5)        (64.1)      (33.5)         (9.7)       (2.0)
                          ----------    ----------    --------      --------    --------
Earnings (loss) before
 income taxes and
 extraordinary item.....      (188.3)          3.1        55.4         191.1        62.1
Provision for income
 taxes..................       (34.8)          7.1        25.3          78.4        21.5
                          ----------    ----------    --------      --------    --------
Earnings (loss) before
 extraordinary item.....      (153.5)         (4.0)       30.1         112.7        40.6
Extraordinary item--loss
 on early extinguishment
 of debt, net(h)........         --           (8.3)        --            --          --
                          ----------    ----------    --------      --------    --------
Net earnings (loss).....  $   (153.5)   $    (12.3)   $   30.1      $  112.7    $   40.6
                          ==========    ==========    ========      ========    ========
Weighted average common
 shares outstanding (in
 thousands).............     122,920       110,579      84,754        89,439      94,468
Earnings (loss) per
 common share before
 extraordinary loss.....  $    (1.25)   $    (0.03)   $   0.36      $   1.26    $   0.43
Extraordinary loss per
 common share...........         --          (0.08)        --            --          --
                          ==========    ==========    ========      ========    ========
Net earnings (loss) per
 common share...........  $    (1.25)   $    (0.11)   $   0.36      $   1.26    $   0.43
                          ==========    ==========    ========      ========    ========
Dividends per common
 share..................         --            --     $   0.08      $   0.32    $   0.31
</TABLE>    
 
<TABLE>
<S>                                 <C>       <C>      <C>      <C>     <C>
SUPPLEMENTAL DATA:
Net cash provided by (used in)
 operating activities(i)..........  $(186.8)  $  47.0  $  14.7  $ 57.2  $102.4
Net cash used in investing
 activities.......................  $ (59.1)  $(115.0) $(293.6) $(95.7) $(36.3)
Net cash provided by (used in)
 financing activities(i)..........  $(258.8)  $  57.6  $ 293.4  $ 17.4  $(84.0)
Bad debt expense..................  $  81.4   $  64.8  $  29.5  $ 28.0  $ 32.1
Bad debt expense as a % of net
 sales............................      5.1%      4.5%     3.4%    3.7%    4.4%
Capital expenditures..............  $  54.1   $  75.4  $  48.9  $ 33.6  $ 34.9
EBITDA(j).........................  $ (34.3)  $ 139.6  $ 154.3  $217.7  $ 91.0
EBITDA as a % of net sales(j).....     (2.1)%     9.7%    17.7%   28.6%   12.6%
Adjusted EBITDA(k)................  $ 173.7   $ 214.6  $ 154.3  $217.7  $227.0
Adjusted EBITDA as a % of net
 sales(k).........................     10.8%     15.0%    17.7%   28.6%   31.5%
Ratio of earnings to combined
 fixed charges and preferred stock
 dividends(l).....................       NM     1.04x    2.20x  10.16x   5.71x
<CAPTION>
                                             As of December 31,
                                    ------------------------------------------
                                     1996     1995(a)  1994(b)   1993    1992
                                    -------   -------  -------  ------  ------
                                            (DOLLARS IN MILLIONS)
<S>                                 <C>       <C>      <C>      <C>     <C>
BALANCE SHEET DATA:
Cash and cash equivalents.........  $  29.3   $  16.4  $  26.8  $ 12.3  $ 33.4
Working capital(m)................    468.7     249.4     90.2    62.4    32.0
Total assets......................  1,917.0   1,837.2  1,012.7   585.5   477.4
Total debt(m).....................  1,308.0   1,034.2    648.9   341.5   154.2
Total stockholders' equity........    258.1     411.6    166.0   140.8   212.5
</TABLE>
 
                                      37
<PAGE>
 
- --------
(a) In April 1995, the Company completed the Merger. RBL's results of
    operations have been included in the Company's results of operations since
    April 28, 1995. See "Management's Discussion and Analysis of Financial
    Condition and Results of Operations--General" and Note 2 of the Notes to
    Consolidated Financial Statements.
(b) In June 1994, the Company completed the Allied Acquisition. Allied's
    results of operations have been included in the Company's results of
    operations since June 23, 1994. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations--General" and Note 2 of
    the Notes to Consolidated Financial Statements.
(c) In the second quarter of 1996, the Company recorded certain charges of a
    non-recurring nature including additional charges related to the
    restructuring of operations following the Merger. The Company recorded a
    restructuring charge totaling $13.0 million for the shutdown of its La
    Jolla, California administrative facility and other workforce reductions.
    In addition, the Company recorded $10.0 million in non-recurring charges
    in the second quarter of 1996 related to the integration of its operations
    following the Merger. See Note 3 of the Notes to Consolidated Financial
    Statements. As a result of negotiations with the OIG and DOJ related to
    the 1996 Government Settlement, the Company recorded a special charge of
    $185.0 million in the third quarter of 1996 to increase accruals for
    settlements and related expenses of government and private claims
    resulting from these investigations. See "Regulation and Reimbursement--
    1996 Government Settlement."
(d) In 1995, following the Merger, the Company determined that it would be
    beneficial to close certain laboratory facilities and eliminate duplicate
    functions in certain geographic regions where duplicate NHL and RBL
    facilities or functions existed at the time of the Merger. The Company
    recorded restructuring charges of $65.0 million in connection with these
    plans. See Note 3 of the Notes to Consolidated Financial Statements. Also
    in 1995, the Company recorded a pre-tax special charge of $10.0 million in
    connection with the estimated costs of settling various claims pending
    against the Company, substantially all of which are billing disputes, with
    various third party payors relating to the contention that NHL improperly
    included tests for HDL cholesterol and serum ferritin in its basic test
    profile without clearly offering an alternative profile that did not
    include these medical tests. As of December 31, 1996, the majority of
    these disputes have been settled.
(e) In the fourth quarter of 1992, the Company recorded a charge against
    operating income of $136.0 million related to the 1992 NHL Government
    Settlement. See "Regulation and Reimbursement--OIG Settlement--1992 NHL
    Government Settlement."
(f) In 1994, the Company approved a settlement of shareholder class and
    derivative litigation. In connection with the settlement, the Company
    recorded a pre-tax special charge of $15.0 million and a $6.0 million
    charge for expenses related to the settled litigation. Insurance payments
    and payments from other defendants amounted to $55.0 million plus
    expenses. The litigation consisted of two consolidated class action suits
    filed in December 1992 and November 1993 and a consolidated shareholder
    derivative action brought in Federal and state courts in San Diego,
    California. The settlement involved no admission of wrongdoing and all
    payments under the settlement agreement have been paid.
(g) Represents a one-time pretax gain comprised of expense reimbursement and
    termination fees of $21.6 million in connection with the Company's attempt
    to purchase Damon Corporation, a competing independent clinical
    laboratory, less related expenses and write-off of certain bank financing
    costs of $6.3 million.
(h) In connection with the repayment in 1995 of existing revolving credit and
    term loan facilities in connection with the Merger, the Company recorded
    an extraordinary loss of approximately $13.5 million ($8.3 million, net of
    tax), consisting of the write-off of deferred financing costs, related to
    the early extinguishment of debt.
(i) The Company made the Settlement Payment in December 1996 with the proceeds
    of the Roche Loan.
(j) EBITDA represents income (loss) before net interest expense, provision for
    income taxes, depreciation and amortization expense and extraordinary
    items. While EBITDA is not intended to represent cash flow from operations
    as defined by GAAP (and should not be considered as an indicator of
    operating
 
                                      38
<PAGE>
 
   performance or an alternative to operating income or cash flow (as measured
   by GAAP)), as a measure of liquidity, management believes it provides
   additional information with respect to the ability of the Company to meet
   its future debt service, capital expenditure and working capital
   requirements. EBITDA may not be comparable to other measures of liquidity
   and excludes components of net income (loss) which are significant in
   understanding the Company's financial performance. See "Management's
   Discussion and Analysis of Financial Condition and Results of Operations--
   Liquidity and Capital Resources."
(k) Adjusted EBITDA represents income (loss) before net interest expense,
    provision for income taxes, depreciation and amortization, extraordinary
    items, a provision for settlements and related expenses, restructuring
    charges and nonrecurring expenses. While Adjusted EBITDA is not intended
    to represent cash flow from operations as defined by GAAP (and should not
    be considered as an indicator of operating performance or an alternative
    to operating income or cash flow (as measured by GAAP)), as a measure of
    liquidity, management believes it provides additional information with
    respect to the ability of the Company to meet its future debt service,
    capital expenditure and working capital requirements. Adjusted EBITDA may
    not be comparable to other measures of liquidity and excludes components
    of net income (loss) which are significant in understanding the Company's
    financial performance. See "Management's Discussion and Analysis of
    Financial Condition and Results of Operations--Liquidity and Capital
    Resources."
   
(l) For the purpose of calculating the ratio of earnings to combined fixed
    charges and preferred stock dividends (i) earnings consist of income
    before provision for income taxes and fixed charges and (ii) fixed charges
    consist of interest expense and one-third of rental expense which is
    deemed representative of an interest factor. For the year ended December
    31, 1996, earnings were insufficient to cover fixed charges and preferred
    stock dividends by $188.3 million.     
(m) Total debt includes a capital lease obligation of $9.8 million, $9.6
    million, $9.8 million, $9.7 million and $9.6 million at December 31, 1996,
    1995, 1994, 1993 and 1992, respectively. Total debt also includes the
    expected value of future contractual and contingent amounts to be paid to
    the principals of acquired laboratories. Such payments are principally
    based on a percentage of future revenues derived from the acquired
    customer lists or specified amounts to be paid over a period of time. At
    December 31, 1996, 1995, 1994, 1993 and 1992, such amounts were $27.7
    million, $23.3 million, $35.1 million, $26.8 million and $4.6 million,
    respectively. In December 1996, the Company received a loan of $187
    million from Roche Holdings to fund the Settlement Payment. Such loan
    bears interest at a rate of 6.625% per annum and matures on March 31,
    1998.
 
                                      39
<PAGE>
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
GENERAL
 
  The Company has grown significantly over the last several years, a
substantial portion of which growth has been achieved through acquisitions. In
June 1994, the Company acquired Allied for approximately $191.5 million in
cash plus the assumption of $24.0 million of Allied indebtedness. In April
1995, the Company completed the Merger with RBL. In connection with the
Merger, the Company issued 61,329,256 shares of Common Stock to HLR and Roche
Holdings in exchange for all outstanding shares of RBL and $135.7 million in
cash. The exchange consideration of approximately $558.0 million for the
purchase of RBL consisted of the value of the stock issued to HLR and Roche
Holdings, as well as other cash costs of the Merger, net of cash received from
HLR. The Allied Acquisition and the Merger have been accounted for under the
purchase method of accounting; as such, the acquired assets and liabilities
were recorded at their estimated fair values on the date of acquisition.
Allied's and RBL's results of operations have been included in the Company's
results of operations since June 23, 1994 and April 28, 1995, respectively.
See Note 2 of Notes to Consolidated Financial Statements. In addition to the
Merger and the Allied Acquisition, since 1993 the Company has acquired a total
of 57 small clinical laboratories with aggregate sales of approximately $182.4
million.
 
  Following the Merger in 1995, the Company determined that it would be
beneficial to close certain laboratory facilities and eliminate duplicate
functions in certain geographic regions where both NHL and RBL facilities or
functions existed at the time of the Merger. The Company recorded
restructuring charges of $65.0 million in connection with these plans in 1995.
In addition, in the second quarter of 1995, the Company had an extraordinary
loss of $8.3 million, net of taxes, related to early extinguishment of debt
related to the Merger. In the second quarter of 1996, the Company recorded
certain additional charges related to the restructuring of operations
following the Merger. The Company recorded a restructuring charge totaling
$13.0 million for the shutdown of its La Jolla, California administrative
facility and other workforce reductions and $10.0 million in non-recurring
charges related to the integration of its operations following the Merger. See
Note 3 of the Notes to Consolidated Financial Statements. Future cash payments
under the restructuring plan are expected to be $16.1 million in the year
ended December 31, 1997 and $9.1 million thereafter.
 
  In the last several years, the Company's business has been affected by
significant government regulation, price competition and increased influence
of managed care organizations resulting from payors' efforts to control the
cost, utilization and delivery of health care services. As a result of these
factors, the Company's profitability has been impacted by changes in the
volume of testing, the prices and costs of its services, the mix of payors and
the level of bad debt expense.
 
  Many market-based changes in the clinical laboratory business have occurred,
most involving the shift away from traditional, fee-for-service medicine to
managed-cost health care. The growth of the managed care sector presents
various challenges to the Company and other independent clinical laboratories.
Managed care providers typically contract with a limited number of clinical
laboratories and negotiate discounts to the fees charged by such laboratories
in an effort to control costs. Such discounts have resulted in price erosion
and have negatively impacted the Company's operating margins. In addition,
managed care providers have used capitated payment contracts in an attempt to
promote more efficient use of laboratory testing services. Under a capitated
payment contract, the clinical laboratory and the managed care provider agree
to a per month payment to cover all laboratory tests during the month,
regardless of the number or cost of the tests actually performed. Such
contracts also shift the risks of additional testing beyond that covered by
the capitated payment to the clinical laboratory. For the year ended December
31, 1996, such contracts accounted for approximately $64.5 million in net
sales. The increase in managed-cost health care has also resulted in declines
in the utilization of laboratory testing services.
 
                                      40
<PAGE>
 
  In addition, Medicare (which principally serves patients 65 and older) and
Medicaid (which principally serves indigent patients) and insurers, have
increased their efforts to control the cost, utilization and delivery of
health care services. Measures to regulate health care delivery in general and
clinical laboratories in particular have resulted in reduced prices and added
costs and decreasing test utilization for the clinical laboratory industry by
increasing complexity and adding new regulatory and administrative
requirements. From time to time, Congress has also considered changes to the
Medicare fee schedules in conjunction with certain budgetary bills. Any future
changes to the Medicare fee schedules cannot be predicted at this time and
management, therefore, cannot predict the impact, if any, such proposals, if
enacted, would have on the results of operations or financial condition of the
Company.
 
  These market based factors have had a significant adverse impact on the
clinical laboratory industry, and on the Company's profitability. Management
expects that price erosion and utilization declines will continue to
negatively impact net sales and results of operations for the foreseeable
future. It is the objective of management to partially offset the increases in
cost of sales as a percentage of net sales and selling, general and
administrative expenses as a percentage of net sales through the cost savings
the Company expects to realize following the Merger, and through comprehensive
cost reduction programs as discussed below. In addition, since the third
quarter of 1996 the Company has expanded its efforts to improve the
profitability of new and existing business. To date this effort has focused
primarily on reviewing existing contracts, including those with managed care
organizations, and selectively repricing or discontinuing business with
existing accounts which perform below Company expectations. The Company
believes that as a result of this effort, the fourth quarter of 1996 was the
second consecutive quarter since the Merger that the Company's price per
accession or specimen did not decline versus the immediately preceding
quarter. The Company is also targeting price increases across most of its
business lines, including specialty and niche testing, which have not seen
price increases since the Merger. While such increases may adversely affect
volumes, the Company believes that such measures along with other cost
reduction programs, will improve its overall profitability. There can be no
assurance, however, of the timing or success of such measures or that the
Company will not lose market share as a result of these measures. Finally, the
Company is reviewing its sales organization and expects to modify its
commission structure so that compensation is tied more directly to the
profitability of retained and new business instead of the current practice of
basing commissions primarily on revenue generated. The Company is also
reviewing alternatives relating to regions of the country and certain
businesses where profitability is not reaching internal goals and may enter
into joint ventures, alliances or asset swaps with interested parties in order
to maximize regional operating efficiencies.
 
  As a result of the Merger, the Company has realized and is expected to
continue to achieve substantial savings in operating costs through the
consolidation of certain operations and the elimination of redundant expenses.
Such savings are being realized over time as the consolidation process is
completed. Since the Merger, the Company has been able to effect substantial
operating cost reductions in the combined businesses and expects that the full
effect of these savings (in excess of $120 million per year when compared to
the businesses' costs immediately prior to the Merger) will be realized during
1997. Such savings include an annualized reduction of $4.7 million in
corporate, general and administrative expenses including the consolidation of
administrative staff. Combining the NHL sales force with the RBL sales force
where duplicate territories existed has added approximately $17.8 million of
annualized synergies. Operational savings have resulted in approximately $94.8
million of annualized synergies. These include closing of overlapping
laboratories and other facilities and savings realized from additional buying
power by the larger Company. The Company has also realized annualized savings
of approximately $14.2 million relating to employee benefits as a result of
changes to certain benefit arrangements. The realization of the savings have
been partially offset by increased temporary help and overtime expenses during
the consolidation process. These costs are expected to reduce to normal levels
at the conclusion of the consolidation process in early 1997. In addition,
these savings have been largely offset by price erosion and utilization
declines resulting from the increase in managed care and to a lesser extent
from increases in other expenses such as bad debt expenses as discussed below.
The effects of price erosion and
 
                                      41
<PAGE>
 
utilization declines on the Company's results of operations, however, would
have been greater but for savings achieved through the synergy program. In
addition, the Company is focused on additional initiatives which are expected
to achieve incremental cost savings in 1997. These plans include further
regional laboratory consolidation, a new agreement with a supplier of
telecommunications services and additional supply savings primarily due to
increased efficiency. There can be no assurance that the estimated additional
cost savings expected to be achieved will be realized or achieved in a timely
manner or that improvements, if any, in profitability will be achieved or that
such savings will not be offset by increases in other expenses.
 
  As part of an examination of the rapid growth of Federal expenditures for
clinical laboratory services, several Federal agencies, including the Federal
Bureau of Investigation, the OIG and the DOJ, have investigated allegations of
fraudulent and abusive conduct by health care providers. On November 21, 1996,
the Company reached a settlement with the OIG and the DOJ regarding the prior
billing practices of various of its predecessor companies. See "Regulation and
Reimbursement--OIG Investigations--1996 Government Settlement." Consistent
with this overall settlement the Company paid $187.0 million to the Federal
Government in December 1996, with proceeds from the Roche Loan. As a result of
negotiations related to the 1996 Government Settlement, the Company recorded a
charge of $185.0 million in the third quarter of 1996 to increase accruals for
the 1996 Government Settlement, and other related expenses of government and
private claims resulting therefrom.
 
  In March 1997, the Company entered into the Sixth Amendment which eliminates
amortization payments on the Term Loan Facility for 1997 and modifies the
interest coverage and leverage ratios for the quarterly periods through
December 31, 1997. Pursuant to this amendment, the Company paid an amendment
fee of 37.5 basis points on commitments and will pay an additional fee of 62.5
basis points if the Rights Offering is not completed by June 30, 1997. In
addition, the Roche Loan which originally matured on March 31, 1997 was
amended to extend the maturity thereof to March 31, 1998.
 
  The Company also entered into the Amended Credit Agreement which will become
effective upon completion of the Rights Offering following satisfaction of
certain conditions precedent. Upon consummation of the Rights Offering and the
receipt of $500 million in gross proceeds, the Amended Credit Agreement makes
available to the Company a term loan facility of $643.8 million and a $450.0
million revolving credit facility. See "Description of Amended Credit
Agreement" below and Note 9 of the Notes to Consolidated Financial Statements
for a complete description of the Amended Credit Agreement.
   
RECENT FINANCIAL RESULTS     
          
  Net sales for the first quarter of 1997 were $391.5 million, versus $403.9
million in the first quarter of 1996. In the first quarter of 1997, the
Company posted operating income of $27.8 million, net earnings of $2.4
million, and earnings per share of $0.02. This compares with operating income
of $27.8 million, net earnings of $5.9 million, and earnings per share of
$0.05 in the same period in 1996.     
   
  The first quarter of 1997 was the first quarter in two years that prices
increased over the prior year's comparable period. Although sales were
approximately $12 million lower than the first quarter of 1996, expense
reductions in the first quarter of 1997 offset this revenue decline, allowing
the Company to maintain operating income at a level equal to the comparable
period in 1996. The lower revenue in 1997 reflects a decline in volume
consistent with industry trends as well as the Company's program of
selectively eliminating unprofitable accounts and carefully evaluating the
acceptability of new business.     
   
  In addition, on flat sales, operating income for the first quarter of 1997
represents an increase of approximately 27% when compared to operating income
of $21.8 million for the fourth quarter of 1996. This improvement is a direct
result of the Company's continuing efforts to reduce costs and increase price.
    
                                      42
<PAGE>
 
   
  Additionally, the Company is increasing its emphasis on actively pursuing
profitable new growth opportunities that add volume and capitalize on its
extensive service capabilities. Recently, the Company finalized a multi-year,
preferred provider agreement with United, one of the nation's largest health
care services organizations. Under the national agreement, the Company is
eligible to provide clinical laboratory testing services for up to 10 million
persons served by United's health plans and preferred provider networks.     
   
  Set forth below is certain summarized financial information for the first
quarter of 1996 and 1997.     
 
<TABLE>   
<CAPTION>
                                                           THREE MONTHS ENDED
                                                                MARCH 31,
                                                           --------------------
                                                             1997       1996
                                                           ---------  ---------
<S>                                                        <C>        <C>
Net sales................................................. $   391.5  $   403.9
                                                           =========  =========
EBITDA(1)................................................. $    49.3  $    48.4
                                                           =========  =========
Operating Income.......................................... $    27.8  $    27.8
                                                           =========  =========
Earnings before income taxes.............................. $     5.9  $    11.8
Provision for income taxes................................      (3.5)      (5.9)
                                                           ---------  ---------
Net earnings.............................................. $     2.4  $     5.9
                                                           =========  =========
Net earnings per common share(2).......................... $    0.02  $    0.05
                                                           =========  =========
</TABLE>    
- --------
   
(1) EBITDA represents income (loss) before net interest expense, provision for
    income taxes, depreciation and amortization expense and extraordinary
    items. While EBITDA is not intended to represent cash flow from operations
    as defined by generally accepted accounting principles ("GAAP") (and
    should not be considered as an indicator of operating performance or an
    alternative to operating income or cash flow (as measured by GAAP)), as a
    measure of liquidity, management believes it provides additional
    information with respect to the ability of the Company to meet its future
    debt service, capital expenditure and working capital requirements. EBITDA
    may not be comparable to other measures of liquidity and excludes
    components of net income (loss) which are significant in understanding the
    Company's financial performance. See "Management's Discussion and Analysis
    of Financial Condition and Results of Operations--Liquidity and Capital
    Resources."     
   
(2) Net earnings per common share are based on the weighted average number of
    shares outstanding during the three-month periods ended March 31, 1997 and
    1996 of 122,935,080 and 122,908,722 shares, respectively.     
       
          
  On March 28, 1997, a formal announcement (the "Announcement") from the
Commission was made available which will impact the Company's calculation of
earnings per share with respect to the issuance of the Preferred Stock. It is
currently anticipated that the Preferred Stock will be convertible into Common
Stock at a conversion price lower than the current market value of the Common
Stock. The Announcement generally requires that the difference between the
conversion price to holders of preferred stock at issuance and the value of
the related common stock, solely as measured in the public market at that
date, be recognized as a preferred dividend (the "Imputed Dividend") and the
resulting Imputed Dividend amortized using the effective interest method from
the date of issuance through the date the preferred stock is first
convertible.     
   
  As a result of the Announcement and the anticipated difference between the
conversion price of the Preferred Stock and the market value of the related
Common Stock, the Company expects that it will record a significant Imputed
Dividend upon the issuance of the Preferred Stock resulting in less income or
a higher loss applicable to holders of the Common Stock. In addition, net
income or loss applicable to     
 
                                      43
<PAGE>
 
   
holders of Common Stock in future periods will be affected by amortization of
the initial Imputed Dividend and additional Imputed Dividend which may arise
when additional shares of Series B PIK Preferred Stock are issued as dividends
on the Series B PIK Preferred Stock.     
       
SEASONALITY
 
  Volume of testing generally declines during the summer months, year-end
holiday periods and other major holidays, resulting in net revenues and cash
flows in the third and fourth quarter below the annual average. In addition,
volume declines due to inclement weather may reduce net revenues and cash
flows. Therefore, comparison of the results of successive quarters may not
accurately reflect trends or results for the full year.
   
RESULTS OF OPERATIONS     
 
  Year Ended December 31, 1996 compared with Year Ended December 31, 1995
 
  Net sales increased by $175.7 million to $1,607.7 million in 1996, an
increase of 12.3% from $1,432.0 million reported in 1995. The inclusion of RBL
as a result of the Merger increased net sales by approximately $243.5 million
or 17.0%. Acquisitions of small clinical laboratory companies increased net
sales by approximately 1.8%. Also contributing to the increases in net sales
was growth in new accounts and price increases in selective markets. Such
increases were partially offset by price erosion in the industry as a whole,
lower utilization of laboratory testing and lost accounts. Price erosion and
lower utilization of laboratory testing primarily resulted from continued
changes in payor mix brought on by the increase in managed care. A reduction
in Medicare fee schedules from 80% to 76% of the national limitation amounts
on January 1, 1996, reduced net sales by approximately 1.3%. Severe weather in
January and February of 1996 also negatively impacted net sales.
 
  Cost of sales, which includes primarily laboratory and distribution costs,
increased to $1,183.9 million in 1996 from $1,024.3 million in 1995. Of the
$159.6 million increase, approximately $181.9 million or 17.8% was due to the
inclusion of the cost of sales of RBL. Cost of sales increased (i)
approximately $23.8 million as a result of wage increases prior to the
implementation of a six-month deferral on wage rate increases implemented on
July 1, 1996, (ii) approximately $5.0 million as a result of higher overtime
and temporary employee expenses related to the acceleration of the Company's
synergy program and other operational factors, (iii) approximately $7.5
million due to higher depreciation and maintenance of lab equipment as a
result of the Company's purchase in 1996 of more sophisticated equipment to
improve efficiency, and (iv) approximately $8.0 million in outside collection
and reference testing fees. These increases were partially offset by decreases
due to lower volume of approximately $14.7 million. Additional decreases in
salaries and benefits of $49.5 million, and several other expense categories
aggregating approximately $2.4 million were primarily a result of the
Company's synergy and cost reduction programs. Cost of sales as a percentage
of net sales was 73.6% in 1996 and 71.5% in 1995. The increase in the cost of
sales percentage of net sales primarily resulted from a reduction in net sales
due to price erosion and utilization declines, each of which provided little
corresponding reduction in costs, and, to a lesser extent, due to severe
weather in January and February of 1996 and a reduction in Medicare fee
schedules.
 
  Selling, general and administrative expenses increased to $305.0 million in
1996 from $238.5 million in the same period in 1995 representing an increase
of $66.5 million or 27.9%. The inclusion of the selling, general and
administrative expenses of RBL since April 28, 1995 increased expenses by
approximately $36.5 or 15.3%. Increases in salaries, overtime and temporary
employee expenses, primarily related to billing issues, and related telephone
and data processing costs, aggregated approximately $24.8. Also, increased
medical necessity and related diagnosis code requirements of third-party
payors placed on the Company in late 1995 and additional requirements placed
on the Company at the beginning of 1996 have resulted in lower collection
rates. As a result the provision for doubtful accounts for 1996 increased
approximately $16.6 million, including a charge of $10.0 million in the second
quarter of 1996 compared
 
                                      44
<PAGE>
 
to 1995 which included a $15.0 million charge in the fourth quarter of 1995.
The 1995 charge was necessitated by the deterioration in the Company's
accounts receivable collection rates in the fourth quarter of 1995 primarily
due to the effect of increased medical necessity and diagnosis code
requirements of third party payors placed on the Company in the second half of
1995. Additional such requirements were placed on the Company at the beginning
of 1996, which resulted in a further deterioration in accounts receivable
collection rates in the second quarter of 1996. As a result of this further
deterioration, the Company recorded the special charge of $10.0 million in the
second quarter of 1996. In addition, the Company increased its monthly
provision for doubtful accounts beginning in the third quarter of 1996 as a
result of continued lower collection rates. These increases were partially
offset by decreases in legal expenses, excluding settlement expenses,
insurance and several other expense categories aggregating approximately $1.9
million. Selling, general and administrative expenses were 19.0% and 16.7% as
a percentage of net sales in 1996 and 1995, respectively. The increase in the
selling, general and administrative percentage primarily resulted from
increased employee expenses related to billing and collection activities, the
increases in the provision for doubtful accounts discussed above and to a
lesser extent, from a reduction in net sales due to price erosion and
utilization declines, each of which provided little corresponding reduction in
costs.
 
  In the second quarter of 1996, the Company recorded certain charges of a
non-recurring nature including additional charges related to the restructuring
of operations. The Company recorded a restructuring charge totaling $13.0
million for the shutdown of its La Jolla, California administrative facility
and other workforce reductions. In addition, the Company recorded $10.0
million of non-recurring charges in the second quarter of 1996 related to the
abandonment of certain data processing systems, relocation of its principal
drug testing facility and various other items including the write-off of
certain laboratory testing supplies related to changes in testing
methodologies to increase efficiency.
 
  As a result of negotiations related to the 1996 Government Settlement, the
Company recorded the Settlement Charge of $185.0 million in the third quarter
of 1996 to increase reserves for the 1996 Government Settlement described
above, and other related expenses of government and private claims resulting
therefrom.
 
  The increase in amortization of intangibles and other assets to $29.6
million in 1996 from $27.0 million in 1995 primarily resulted from the Merger
in April 1995.
 
  Net interest expense was $69.5 million in 1996 compared to $64.1 million in
1995. The increase resulted primarily from increased borrowings due to higher
accounts receivable balances and a higher effective borrowing rate as a result
of an amendment to the Company's credit agreement. See "Liquidity and Capital
Resources."
 
  As a result of the restructuring and non-recurring charges in 1996 and 1995,
the provision for income taxes is not comparable between periods. However,
before charges, the Company's effective income tax rate in 1996 has increased
from 1995 as a result of increased non-deductible amortization and lower
earnings before income taxes.
 
  Year Ended December 31, 1995 compared with Year Ended December 31, 1994.
 
  Net sales increased by $559.5 million to $1,432.0 million in 1995, an
increase of 64.1% from $872.5 million reported in 1994. Net sales from the
inclusion of RBL increased net sales by approximately $514.7 million or 59.0%.
Also, net sales from the inclusion of Allied, which was acquired on June 23,
1994, increased net sales by approximately $56.6 million or 6.5%. Growth in
new accounts and acquisitions of small clinical laboratory companies increased
net sales by approximately 8.6% and 2.8%, respectively. Lower utilization of
laboratory testing and price erosion in the industry as a whole decreased net
sales by approximately 5.0%. A reduction in Medicare fee schedules from 84% to
80% of the national limitation amounts on January 1, 1995, plus changes in
reimbursement policies of various third-party payors, reduced
 
                                      45
<PAGE>
 
net sales by approximately 1.5%. Other factors, including accounts terminated
by management, comprised the remaining reduction in net sales.
 
  Cost of sales increased to $1,024.3 million in 1995 from $597.0 million in
1994. Of the $427.3 million increase, approximately $368.8 million was due to
the inclusion of the cost of sales of RBL and approximately $44.8 million was
due to the inclusion of the cost of sales of Allied. Cost of sales increased
by approximately $26.1 million due to higher testing volume unrelated to the
Merger or acquisition of Allied and approximately $4.5 million due to
increases in other expenses. Reductions in compensation and benefit expense of
$9.2 million, insurance of $4.8 million, and other expense categories of $2.9
million decreased cost of sales an aggregate of approximately $16.9 million.
These decreases resulted from the consolidation of operations as a result of
the Merger and the Company's on-going cost-reduction program. As a percentage
of net sales, cost of sales increased to 71.5% in 1995 from 68.4% in 1994. The
increase in the cost of sales percentage primarily resulted from a reduction
in net sales due to a reduction in Medicare fee schedules, pricing pressures
and utilization declines, each of which provided little corresponding
reduction in costs.
 
  Selling, general and administrative expenses increased to $238.5 million in
1995 from $149.3 million in 1994, an increase of $89.2 million. Approximately
$74.3 million of the increase was due to the inclusion of the selling, general
and administrative expenses of RBL and approximately $7.7 million due to the
inclusion of the selling, general and administrative expenses of Allied. In
the fourth quarter of 1995, the Company recorded an additional $15.0 million
of provision for doubtful accounts which reflects the Company's determination,
based on trends that became evident in the fourth quarter, that additional
reserves were needed primarily to cover potentially lower collection rates
from several third-party payors. The increase in selling, general and
administrative expenses was partially offset by decreases in other expense
categories, including reductions in selling expenses, as a result of the
elimination of duplicative functions in connection with the Merger and the
Company's on-going cost-reduction program. Before the increase to the
provision for doubtful accounts, selling, general and administrative expenses
as a percentage of net sales was 15.6% in 1995 and 17.1% in 1994. The decrease
in the selling, general and administrative percentage primarily resulted from
reductions in expenses as discussed above.
 
  The increase in amortization of intangibles and other assets to $27.0
million in 1995 from $16.3 million in 1994 primarily resulted from the Merger
in April 1995 and the acquisition of Allied in June 1994.
 
  See Note 3 of the Notes to Consolidated Financial Statements which sets
forth the Company's restructuring activities for the year ended December 31,
1995.
 
  In the second quarter of 1995, the Company took a pre-tax special charge of
$10.0 million in connection with the estimated costs of settling various
claims pending against the Company, substantially all of which were billing
disputes with various third party payors relating to the contention that NHL
improperly included tests for HDL cholesterol and serum ferritin in its basic
test profile without clearly offering an alternative profile that did not
include these medical tests. As of December 31, 1996, the majority of these
disputes have been settled.
 
  Net interest expense was $64.1 million in 1995 compared to $33.5 million in
1994. The change resulted primarily from increased borrowings used to finance
the Merger with RBL and the acquisition of Allied and, to a lesser extent, due
to a higher effective borrowing rate in the first four months of 1995.
 
  In connection with the repayment of the Company's existing revolving credit
and term loan facilities at the time of the Merger, the Company recorded an
extraordinary loss from the early extinguishment of debt of approximately
$13.5 million ($8.3 million net of tax) consisting of the write-off of
deferred financing costs.
 
  As a result of the restructuring charges and extraordinary loss, the
provision for income taxes as a percentage of earnings before income taxes for
1995 is not comparable to prior periods.
 
                                      46
<PAGE>
 
LIQUIDITY AND CAPITAL RESOURCES
 
  Net cash (used for) provided by operating activities (after payment of
settlement and related expenses of $188.9 million, $32.1 million and $29.8
million, respectively) was $(186.8) million, $47.0 million and $14.7 million,
in 1996, 1995 and 1994, respectively. The decrease in cash flow from
operations in 1996 primarily resulted from the Settlement Payment, an increase
in accounts receivable related to increased medical necessity and related
diagnosis code requirements of third-party payors placed on the Company at the
beginning of 1996 and reflects the lower collection rates experienced
beginning in the second quarter as a result of the more stringent requirements
as discussed above.
 
  Capital expenditures were $54.1 million, $75.4 million and $48.9 million for
1996, 1995 and 1994, respectively. The Company expects capital expenditures to
be approximately $65.0 million in 1997 and $70.0 million in 1998 to further
automate laboratory processes and to improve efficiency. Such expenditures are
expected to be funded by cash flow from operations as well as borrowings under
the Company's credit facilities.
 
  Increased medical necessity and related diagnosis code requirements of the
Medicare program were placed on the Company by certain third party carriers in
late 1995 and additional requirements were placed on the Company at the
beginning of 1996. The Company has experienced lower collection rates as a
result of these more stringent requirements. In addition, increased difficulty
in collecting amounts due from private insurance carriers, including certain
managed care plans, has negatively impacted cash flow from operations.
Finally, Merger related integration issues have also resulted in increased
accounts receivable balances as a result of the Company maintaining multiple
billing information systems. The Company currently has plans in place to
stabilize collection rates and improve the collection of accounts receivable.
See "Business--Billing". To date, however, collection rates have continued to
decline and additional changes in requirements of third-party payors could
increase the difficulty in collections. There can be no assurance of the
success of the Company's plans to improve collections and, due to changes in
medical necessity requirements, the Company expects accounts receivable
balances to continue to exceed 1995 levels.
 
  In connection with the Merger, the Company entered into the Existing Credit
Agreement, with the banks named therein (the "Banks") and an administrative
agent (the "Bank Agent"), which made available to the Company the Term Loan
Facility of $800.0 million and the Revolving Credit Facility of $450.0
million. On April 28, 1995, the Company borrowed $800.0 million under the Term
Loan Facility and $184.0 million under the Revolving Credit Facility (i) to
pay the cash payment to shareholders in connection with the Merger; (ii) to
repay in full the existing revolving credit and term loan facilities of a
wholly owned subsidiary of the Company of approximately $640.0 million
including interest and fees; (iii) to repay approximately $50.0 million of
existing indebtedness of RBL; and (iv) for other transaction costs in
connection with the Merger and for use as working capital and general
corporate purposes of the Company and its subsidiaries. Availability of funds
under the Existing Credit Agreement is conditioned on certain customary
conditions, and the Existing Credit Agreement, as amended, contains customary
representations, warranties, covenants and events of default.
 
  As a result of potential defaults under the Existing Credit Agreement
resulting from among other things, the Company's performance and higher than
projected debt levels, the Settlement Charge, and the Roche Loan, the Company
has obtained several amendments and waivers to the Existing Credit Agreement.
In September 1996, the Company negotiated an amendment (the "Fourth
Amendment") to the Existing Credit Agreement. The Fourth Amendment modified
the interest coverage and leverage ratios applicable to the quarters ending
September 30 and December 31, 1996. The Fourth Amendment also increased the
interest rate margin on its revolving credit facility from 0.25% to 0.875% and
increased the interest rate margin on its term loan facility from 0.375% to
1.00%. As a result of the Settlement Charge in the third quarter of 1996, as
described above, the Company obtained a waiver (the "Third Waiver") which
excluded the special charge from covenant calculations for the periods covered
by the most recent
 
                                      47
<PAGE>
 
amendment until 30 days after the 1996 Government Settlement. As a result of
the Roche Loan and the 1996 Government Settlement, the Company negotiated a
Fifth Amendment and Fourth Waiver (the "Fifth Amendment") to the Existing
Credit Agreement. The Fifth Amendment extended the Third Waiver until January
31, 1997 and excluded the Roche Loan from covenant calculations for the
quarters ending December 31, 1996 and March 31, 1997. On January 27, 1997, the
Company negotiated a waiver (the "Fifth Waiver") which further extended the
Third Waiver until March 31, 1997.
 
  As mentioned above, in March 1997, the Company entered into the Sixth
Amendment which eliminates amortization payments on the Term Loan Facility for
1997 and modifies the interest coverage and leverage ratios for the quarterly
periods through December 31, 1997. As a result of the Sixth Amendment certain
amounts outstanding under the Revolving Credit Facility and Term Loan Facility
that were classified as current liabilities in the September 30, 1996
financial statements have been reclassified to long-term debt in the December
31, 1996 financial statements. Under the Sixth Amendment, maturities under the
term loan facility aggregate $243.8 million, $162.5 million, $187.5 million
and $100.0 million in 1998 through 2001, respectively.
 
  In March 1997 the Company also entered into the Amended Credit Agreement
which will become effective upon completion of the Rights Offering following
satisfaction of certain conditions precedent. Upon consummation of the Rights
Offering and receipt of $500 million in gross proceeds, the Amended Credit
Agreement makes available to the Company the Amended Term Loan Facility of
$643.8 million and the Amended Revolving Credit Facility of $450.0 million.
 
  As in the Existing Credit Agreement, the senior unsecured credit facilities
under the Amended Credit Agreement are composed of the Amended Term Loan
Facility and the Amended Revolving Credit Facility. The Amended Revolving
Credit Facility includes a $50.0 million letter of credit sublimit. The
Amended Credit Agreement maturity dates are extended approximately three years
for the Amended Term Loan Facility to March 31, 2004 and approximately two
years for the Amended Revolving Credit Facility to March 31, 2002. See
"Description of Amended Credit Agreement."
 
  Borrowings under the Revolving Credit Facility were $384.0 million as of
March 31, 1997. In addition, in December 1996, the Company received a loan of
$187.0 million from Roche Holdings to fund the Settlement Payment in the form
of a promissory note which bears interest at 6.625% per annum and originally
matured on March 31, 1997. As discussed above, in late March 1997, the Company
obtained an extension of the Roche Loan to March 31, 1998. The Company
subsequently made the Settlement Payment in December 1996. The Roche Loan is
expected to be repaid with a portion of the proceeds from the Rights Offering.
   
  Cash and cash equivalents on hand, cash flow from operations and additional
borrowing capabilities of $66.0 million under the Revolving Credit Facility as
of March 31, 1997 are expected to be sufficient to meet anticipated operating
requirements, debt repayments and provide funds for capital expenditures and
working capital through 1997. The Company's ability to meet anticipated
operating requirements, debt repayments, including the Roche Loan, and other
anticipated cash outlays beyond 1997 is substantially dependant upon the
completion of the Rights Offering. Failure to complete the Rights Offering or
to complete it by the end of February 1998 will require additional waivers or
amendments to the Existing Credit Agreement and an extension of the Roche
Loan. There can be no assurance that such waivers or amendments or extension
can be obtained. Therefore, the failure to complete the Rights Offering or
complete it by the end of February 1998 could have a material adverse effect
on the Company's financial condition and liquidity.     
 
  At December 31, 1996, the Company was a party to interest rate swap
agreements with certain major financial institutions, rated A or better by
Moody's Investor Service, solely to manage its interest rate exposure with
respect to $600.0 million of its floating rate debt under the Term Loan
Facility. The agreements effectively changed the interest rate exposure on
$600.0 million of floating rate debt to a
 
                                      48
<PAGE>
 
   
weighted average fixed interest rate, of 6.01%, through requiring that the
Company pay a fixed rate in exchange for the financial institutions paying a
floating rate amount. Amounts paid by the Company in 1996 were $2.0 million.
The notional amounts of the agreements are used to measure the interest to be
paid or received and do not represent the amount of exposure to credit loss.
These agreements mature in September 1998. The estimated cost at which the
Company could terminate such agreements was $0.9 million at December 31, 1996.
       
  The gross proceeds of the Rights Offering will be used to (i) repay
approximately $294 million outstanding under the Existing Credit Agreement,
(ii) pay fees and expenses of approximately $13 million related to the Rights
Offering and (iii) repay the $187 million loan from Roche Holdings made in
December 1996 in order to fund the Settlement Payment plus accrued interest
thereon of approximately $6 million. See "Use of Proceeds."     
 
CHANGES IN ACCOUNTING STANDARDS
 
  On March 3, 1997, the FASB issued Statement of Financial Accounting
Standards ("SFAS") No. 128, "Earnings per Share," replacing Accounting
Principles Board ("APB") Opinion No. 15, "Earnings per Share." SFAS No. 128
replaces "primary" and "fully diluted" earnings per share ("EPS") under APB
Opinion No. 15 with "basic" and "diluted" EPS. Unlike primary EPS, basic EPS
excludes the dilutive effects of options, warrants and other convertible
securities. Dilutive EPS reflects the potential dilution of securities that
could share in the earnings of an entity, similar to fully diluted EPS.
However, under SFAS No. 128, the Company would use the average market price
for its stock during the reporting period to determine the cost of options as
opposed to the greater of the closing price at the end of the period or the
average market price during the period, as currently required by APB Opinion
No. 15. SFAS No. 128 is effective for years ending after December 15, 1997.
The Company is currently evaluating the impact of the implementation of SFAS
No. 128.
 
FORWARD LOOKING STATEMENTS
 
  CAUTIONARY STATEMENT FOR PURPOSES OF THE "SAFE HARBOR" PROVISIONS OF THE
PRIVATE SECURITIES LITIGATION REFORM ACT OF 1995
 
  The Private Securities Litigation Reform Act of 1995 provides a new "safe
harbor" for forward-looking statements so long as those statements are
identified as forward-looking and are accompanied by meaningful cautionary
statements identifying important factors that could cause actual results to
differ materially from those projected in the statement. Included herein are
certain forward-looking statements concerning the Company's operations,
economic performance and financial condition, including, in particular,
forward-looking statements regarding the Company's expectation of future
performance following implementation of its new business strategy. Such
statements are subject to various risks and uncertainties. Accordingly, the
Company hereby identifies the following important factors that could cause the
Company's actual financial results to differ materially from those projected,
forecast, estimated, or budgeted by the Company in such forward-looking
statements.
 
  (a) Heightened competition, including intensification of price competition.
     
  (b) Impact of changes in payor mix, including the shift from traditional,
      fee-for-service medicine to managed-cost health care.     
 
  (c) Adverse actions by governmental or other third-party payors, including
      unilateral reduction of fee schedules payable to the Company.
 
  (d) The impact upon the Company's collection rates or general or
      administrative expenses resulting from compliance with Medicare
      administrative policies including specifically the HCFA's recent
      requirement that laboratories performing certain automated blood
      chemistry profiles to obtain and provide documentation of the medical
      necessity of tests included in the profiles for each Medicare
      beneficiary.
 
                                      49
<PAGE>
 
  (e) Adverse results from investigations of clinical laboratories by the
      Federal Bureau of Investigation and the OIG including specifically
      significant monetary damages and/or exclusion from the Medicare and
      Medicaid programs.
 
  (f) Failure to obtain new customers, retain existing customers or reduction
      in tests ordered or specimens submitted by existing customers.
 
  (g) Adverse results in significant litigation matters.
 
  (h) Denial of certification or licensure of any of the Company's clinical
      laboratories under CLIA, by Medicare and Medicaid programs or other
      Federal, state or local agencies.
 
  (i) Adverse publicity and news coverage about the Company or the clinical
      laboratory industry.
 
  (j) Inability to carry out marketing and sales plans.
 
  (k) Inability to successfully integrate the operations of or fully realize
      the costs savings expected from the consolidation of certain operations
      and the elimination of duplicative expenses resulting from the April
      28, 1995 merger of the Company and RBL or risk that declining revenues
      or increases in other expenses will offset such savings.
 
  (l) Ability of the Company to attract and retain experienced and qualified
      personnel.
 
  (m) Changes in interest rates causing an increase in the Company's
      effective borrowing rate.
 
  (n) The effect of the Company's effort to improve account profitability by
      selectively repricing or discontinuing business with existing accounts
      which perform below Company expectations.
 
  (o) The failure to consummate the Rights Offering by the end of the second
      quarter of 1997.
 
 
                                      50
<PAGE>
 
                                   BUSINESS
 
OVERVIEW
 
  Laboratory Corporation of America Holdings is one of the three largest
independent clinical laboratory companies in the United States based on 1996
net revenues. Through a national network of laboratories, the Company offers a
broad range of testing services used by the medical profession in the
diagnosis, monitoring and treatment of disease and other clinical states.
Since its founding in 1971, the Company has grown into a network of 28 major
laboratories and approximately 1,500 service sites consisting of branches,
patient service centers and STAT laboratories, serving clients in 48 states.
For the year ended December 31, 1996, the Company had net sales of $1,607.7
million and EBITDA before a provision for settlements and related expenses,
restructuring charges and non-recurring expenses of $173.7 million. See
footnote (j) to "Selected Financial Data" for a discussion of certain matters
related to EBITDA. Primarily as a result of the Settlement Charge, operating
loss and net loss during such period were $118.8 million and $153.5 million,
respectively.
 
  The Company has achieved a substantial portion of its growth through
acquisitions. In June 1994 the Company acquired Allied Clinical Laboratories,
Inc., then the sixth largest independent clinical laboratory testing company
in the United States (based on 1993 net revenues). On April 28, 1995, the
Company completed a merger with RBL, an indirect subsidiary of Roche pursuant
to an Agreement and Plan of Merger dated as of December 13, 1994. In
connection with the Merger, the Company changed its name from National Health
Laboratories Holdings Inc. to Laboratory Corporation of America Holdings. In
addition to the Merger and the Allied Acquisition, since 1993, the Company has
acquired a total of 57 small clinical laboratories with aggregate sales of
approximately $182.4 million.
 
  During 1996 and the early part of 1997, the Company has undergone
significant changes in management with Thomas P. Mac Mahon assuming the role
of President and Chief Executive Officer in January 1997 in addition to his
position as Chairman. Prior to such time Mr. Mac Mahon served as Senior Vice
President of Roche and President of Roche Diagnostics Group where he was
responsible for the management of all United States operations of the
diagnostic businesses of Roche. In addition to Mr. Mac Mahon, the Company is
led by a new Chief Financial Officer, Wesley R. Elingburg, formerly Senior
Vice President--Finance, and a new management committee.
 
THE CLINICAL LABORATORY TESTING INDUSTRY
 
 OVERVIEW
 
  Laboratory tests and procedures are used generally by hospitals, physicians
and other health care providers and commercial clients to assist in the
diagnosis, evaluation, detection, monitoring and treatment of diseases and
other medical conditions through the examination of substances in blood,
tissues and other specimens. Clinical laboratory testing is generally
categorized as either clinical testing, which is performed on body fluids
including blood and urine, or anatomical pathology testing, which is performed
on tissue and other samples, including human cells. Clinical and anatomical
pathology procedures are frequently ordered as part of regular physician
office visits and hospital admissions in connection with the diagnosis and
treatment of illnesses. Certain of these tests and procedures are used
principally as tools in the diagnosis and treatment of a wide variety of
medical conditions such as cancer, AIDS, endocrine disorders, cardiac
disorders and genetic disease. The most frequently requested tests include
blood chemistry analyses, urinalyses, blood cell counts, PAP smears, AIDS
tests, microbiology cultures and procedures and alcohol and other substance-
abuse tests.
 
  The clinical laboratory industry consists primarily of three types of
providers: hospital based laboratories, physician-office laboratories and
independent clinical laboratories, such as those owned by the Company. The
Company believes that in 1996 approximately 50 percent of the clinical testing
revenues in the United States were derived by hospital-based laboratories,
approximately 15 percent was derived by
 
                                      51
<PAGE>
 
physicians in their offices and laboratories and approximately 35 percent went
to independent clinical laboratories. The HCFA has estimated that in 1996
there were over 5,000 independent clinical laboratories in the United States.
 
 EFFECT OF MARKET CHANGES ON THE CLINICAL LABORATORY BUSINESS
 
  Many market-based changes in the clinical laboratory business have occurred,
most involving the shift away from traditional, fee-for-service medicine to
managed-cost health care. The growth of the managed care sector presents
various challenges to the Company and other independent clinical laboratories.
Managed care providers typically contract with a limited number of clinical
laboratories and negotiate discounts to the fees charged by such laboratories
in an effort to control costs. Such discounts have resulted in price erosion
and have negatively impacted the Company's operating margins. In addition,
managed care providers have used capitated payment contracts in an attempt to
promote more efficient use of laboratory testing services. Under a capitated
payment contract, the clinical laboratory and the managed care provider agree
to a per month payment to cover all laboratory tests during the month,
regardless of the number or cost of the tests actually performed. Such
contracts also shift the risks of additional testing beyond that covered by
the capitated payment to the clinical laboratory. For the year ended December
31, 1996 such contracts accounted for approximately $64.5 million in net
sales. The increase in managed-cost health care has also resulted in declines
in the utilization of laboratory testing services.
 
  In addition, Medicare and Medicaid and insurers, have increased their effort
to control the cost, utilization and delivery of health care services.
Measures to regulate health care delivery in general and clinical laboratories
in particular have resulted in reduced prices and added costs and decreasing
test utilization for the clinical laboratory industry by increasing complexity
and adding new regulatory and administrative requirements. From time to time,
Congress has also considered changes to the Medicare fee schedules in
conjunction with certain budgetary bills. Any future changes to the Medicare
fee schedules cannot be predicted at this time and management, therefore,
cannot predict the impact, if any, such proposals, if enacted, would have on
the results of operations of the Company.
 
  The Company believes that the volume of clinical laboratory testing will be
positively influenced by several factors, including primarily: an expanded
base of scientific knowledge which has led to the development of more
sophisticated specialized tests and increased the awareness of physicians of
the value of clinical laboratory testing as a cost-effective means of
prevention, early detection of disease and monitoring of treatment. Additional
factors which have contributed to recent volume growth include: an increase in
the number and types of tests which are, due to advances in technology and
increased cost efficiencies, readily available on a more affordable basis to
physicians; expanded substance-abuse testing by corporations and governmental
agencies; increased testing for sexually transmitted diseases such as AIDS;
and the general aging of the population in the United States. The impact of
these factors is expected to be partially offset by declines in volume as a
result of increased controls over the utilization of laboratory services by
Medicare and other third party payors, particularly managed care
organizations.
 
BUSINESS STRATEGY
 
  During 1996, management began implementing a new business strategy in
response to the Company's declining performance. These new strategic
objectives are as follows: remaining a low cost provider of clinical testing
services; providing high quality customer service to its clients; and
improving account profitability. In addition, the Company is focused on
certain growth initiatives beyond routine clinical laboratory testing. The
Company believes that as a result of this change in focus it is well
positioned to achieve its goal of leading the clinical laboratory industry by
providing its customers with innovative, responsive, and high quality
services.
 
 
                                      52
<PAGE>
 
 LOW COST PROVIDER
 
  The Company believes that due to synergy programs implemented following the
Merger, its standardized equipment and its focus on cost containment, it is a
low cost provider of clinical testing services. Since the Merger, the Company
has been able to effect substantial operating cost reductions in the combined
businesses and expects that the full effect of these savings (approximately
$120 million per year when compared to the businesses' costs immediately prior
to the Merger) will be realized during 1997. In addition, the Company is
focused on other initiatives which are expected to achieve significant cost
savings in 1997. These plans include a new agreement with a supplier of
telecommunications services, additional supply savings primarily due to
increased efficiency, and further regional laboratory consolidation. See
"Management's Discussion and Analysis of Results of Operations and Financial
Position."
 
  The Company has also developed and implemented sophisticated management
information systems to monitor operations and control costs. All financial
functions are centralized in Burlington, North Carolina including purchasing
and accounting. Management believes this provides greater control over
spending as well as increased supervision and monitoring of results of
operations.
 
 CLIENT SERVICE
 
  The Company competes primarily on the basis of the quality of its testing,
reporting and information systems, its reputation in the medical community,
the pricing of its services and its ability to employ qualified personnel. The
Company believes it is a leading provider of laboratory testing in terms of
its menu and quality of testing services. As a result of the required focus on
the consolidation process related to the Merger, however, the Company believes
that its level of client service has been negatively impacted. Therefore, in
1997, with the consolidation process substantially completed, one of the
Company's goals is to improve client service. An important factor in improving
client service includes the Company's initiatives to improve its billing
process. See "--Billing."
 
 ACCOUNT PROFITABILITY
 
  Since the third quarter of 1996, the Company has begun an active effort to
improve the profitability of new and existing business. To date this effort
has focused primarily on reviewing existing contracts, including those with
managed care organizations, and selectively repricing or discontinuing
business with existing accounts which perform below Company expectations. The
Company believes that as a result of this effort, the fourth quarter of 1996
was the second consecutive quarter since the Merger that the Company's price
per accession or specimen did not decline versus the immediately preceding
quarter. The Company is also targeting price increases across most of its
business lines, including specialty and niche testing which have not seen
price increases since the Merger. While such increases may adversely affect
volumes, the Company believes that such measures along with other cost
reduction programs, will improve its overall profitability. Finally, the
Company is reviewing its sales organization and expects to modify its
commission structure so that compensation is tied more directly to the
profitability of retained and new business instead of the current practice of
basing commissions primarily on revenue generated. The Company is also
reviewing alternatives relating to regions of the country and certain
businesses where profitability is not reaching internal goals and may enter
into joint ventures, alliances, or asset swaps with interested parties in
order to maximize regional operating efficiencies.
 
 FOCUSED GROWTH INITIATIVES
 
  The Company plans to increase market share in certain sections of the market
by providing innovative services in three primary areas: (i) hospital
alliances; (ii) specialty and niche businesses; and (iii) direct marketing to
payors.
 
 
                                      53
<PAGE>
 
  One of the Company's primary growth strategies is to develop an increasing
number of hospital alliances. These alliances can take several different forms
including laboratory management contracts, reference agreements and joint
ventures. Through these alliances the Company provides testing services as
well as contract management services. As hospitals continue to be impacted by
decreasing fee schedules from third party payors and managed care
organizations, the Company believes that they will seek the most cost-
effective laboratory services for their patients. Management believes the
Company's economies of scale as well as its delivery system will enable it to
assist the hospital in achieving this goal. These alliances are generally more
profitable than the Company's core business due to the specialized nature of
many of the testing services offered in the alliance program. In 1996, the
Company added 6 alliance agreements with hospitals, physician groups and other
care provider organizations representing approximately $20 million of annual
sales. This increased the total number of alliances to 20 at December 31, 1996
from 14 at December 31, 1995.
 
  Another primary growth strategy for the Company is growth of its specialty
and niche businesses. In general the specialty and niche businesses are
designed to serve two market segments: (i) markets which are not served by the
routine clinical testing laboratory and therefore are subject to less
stringent regulatory and reimbursement constraints; and (ii) markets which are
served by the routine testing laboratory but offer the possibility of adding
related services from the same supplier. The Company's research and
development group continually seeks new and improved technologies for early
diagnosis. For example, the Company believes its Center for Molecular and
Biology and Pathology is a leader in molecular diagnostics and polymerase
chain reaction technologies which are often able to provide earlier and more
reliable information regarding HIV, genetic diseases, cancer and many viral
and bacterial diseases. These technologies may represent a significant savings
to managed care organizations by increasing the detection of early stage
(treatable) diseases. Also, the Company recently acquired Genetic Design, Inc.
and management believes it is now the largest provider of identity testing
services in the United States.
 
  Finally, in 1996 the Company also began to focus efforts on selling its
services directly to payors of laboratory services. As a result of that focus,
the Company entered into an agreement with PCS Health Systems, Inc., a leading
pharmacy benefit management company with 58 million covered lives, to provide
laboratory services as an extension of the PCS prescription card services.
Through this agreement patients will be provided with identification cards
indicating beneficiary eligibility for both prescription benefits and the
Company's testing services. The Company will provide the testing services as
requested and bill PCS based on a predetermined fee schedule. The Company will
pay PCS certain percentage and fixed fees for adjudication of claims. One of
the advantages of the PCS agreements is that patient eligibility will be
determined at the time of testing through interface with the PCS information
system which will expedite processing of the claim for reimbursement.
 
LABORATORY TESTING OPERATIONS AND SERVICES
 
  The Company has 28 major laboratories, and approximately 1,500 service sites
consisting of branches, patient service centers and STAT laboratories. A
"branch" is a central office which collects specimens in a region for shipment
to one of the Company's laboratories for testing. Test results can be printed
at a branch and conveniently delivered to the client. A branch also is used as
a base for sales staff. A "patient service center" generally is a facility
maintained by the Company to serve the physicians in a medical professional
building or other strategic locations. The patient service center collects the
specimens as requested by the physician. The specimens are sent, principally
through the Company's in-house courier system (and, to a lesser extent,
through independent couriers), to one of the Company's major laboratories for
testing. Some of the Company's patient service centers also function as "STAT
labs", which are laboratories that have the ability to perform certain routine
tests quickly and report results to the physician immediately. The Company
processed an average of approximately 250,000 patient specimens per day in
1996. Patient specimens are delivered to the Company accompanied by a test
request form. These forms, which are completed by the client, indicate the
tests to be performed and provide the necessary billing information.
 
                                      54
<PAGE>
 
  Each specimen and related request form is checked for completeness and then
given a unique identification number. The unique identification number
assigned to each specimen helps to assure that the results are attributed to
the correct patient. The test request forms are sent to a data entry terminal
where a file is established for each patient and the necessary testing and
billing information is entered. Once this information is entered into the
computer system, the tests are performed and the results are entered primarily
through computer interface or manually, depending upon the tests and the type
of equipment involved. Most of the Company's computerized testing equipment is
directly linked with the Company's information systems. Most routine testing
is completed by early the next morning, and test results are printed and
prepared for distribution by service representatives that day. Some clients
have local printer capability and have reports printed out directly in their
offices. Clients who request that they be called with a result are so notified
in the morning. It is Company policy to notify the client immediately if a
life-threatening result is found at any point during the course of the testing
process.
 
TESTING SERVICES
 
 ROUTINE TESTING
 
  The Company currently offers over 1,700 different clinical laboratory tests
or procedures. Several hundred of these are frequently used in general patient
care by physicians to establish or support a diagnosis, to monitor treatment
or medication or to search for an otherwise undiagnosed condition. The most
frequently requested routine tests include blood chemistry analyses,
urinanalyses, blood cell counts, pap smears and AIDS tests. These routine
procedures are most often used by practicing physicians in their outpatient
office practices. Physicians may elect to send such procedures to an
independent laboratory or they may choose to establish an in-house laboratory
to perform some of the tests.
 
  The Company performs this core group of routine tests in each of its 28
major regional laboratories, which constitutes a majority of the testing
performed by the Company. The Company generally performs and reports most
routine procedures within 24 hours, utilizing a variety of sophisticated and
computerized laboratory testing instruments.
 
 SPECIALTY AND NICHE TESTING
 
  While the information provided by many routine tests may be used by nearly
all physicians, regardless of specialty, many other procedures are more
specialized in nature. Certain types of unique testing capabilities and/or
client requirements have been developed into specialty or niche businesses by
the Company which have become a primary growth strategy for the Company. In
general the specialty and niche businesses are designed to serve two market
segments; (i) markets which are not served by the routine clinical testing
laboratory and therefore are subject to less stringent regulatory and
reimbursement constraints; and (ii) markets which are served by the routine
testing laboratory and offer the possibility of adding related services from
the same supplier. The following are specialty and niche businesses in which
the Company offers testing and related services:
 
<TABLE>
<S>                            <C>
Allergy Testing............... The Company offers an extensive range of
                               allergen testing services as well as
                               computerized analysis and a treatment program
                               that enables primary care physicians to diagnose
                               and treat many kinds of allergic disorders.
Ambulatory Monitoring......... The Company performs a computer assisted
                               analysis of electrocardiograms and blood
                               pressure measurements. Many of these analyses
                               are submitted by physicians who require extended
                               (up to 24 hours) monitoring of these parameters
                               for patients.
</TABLE>
 
                                      55
<PAGE>
 
<TABLE>
<S>                           <C>
Clinical Research Testing.... The Company regularly performs clinical
                              laboratory testing for pharmaceutical companies
                              conducting clinical research trials on new
                              drugs. This testing often involves periodic
                              testing of patients participating in the trial
                              over several years.
Diagnostic Genetics.......... The Company offers cytogenetic, biochemical and
                              molecular genetic tests.
Identity Testing............. The Company provides forensic identity testing
                              used in connection with criminal proceedings and
                              parentage evaluation services which are used to
                              assist in the resolution of disputed parentage
                              in child support litigation. Parentage testing
                              involves the evaluation of immunological and
                              genetic markers in specimens obtained from the
                              child, the mother and the alleged father.
Industrial Hygiene Testing... The Company maintains a separate testing
                              facility in Richmond, Virginia, dedicated to the
                              analysis of potentially toxic substances in the
                              workplace environment.
Kidney Stone Analysis........ The Company offers specialized patient analysis
                              assessing the risk of kidney stones based on
                              laboratory measurements and patient history.
Oncology Testing............. The Company offers an extensive series of
                              testing technologies that aid in diagnosing and
                              monitoring certain cancers and predicting the
                              outcome of certain treatments.
Substance Abuse Testing...... The Company provides urinalysis testing for the
                              detection of drugs of abuse for private and
                              government customers, and also provides blood
                              testing services for the detection of drugs of
                              abuse and alcohol. These testing services are
                              designed to produce "forensic" quality test
                              results that satisfy the rigorous requirements
                              for admissibility as evidence in legal
                              proceedings.
Veterinary Testing........... The Company offers clinical laboratory testing
                              of animal specimens for veterinarians which
                              require specialized testing procedures and
                              handling due to their differing characteristics.
</TABLE>
 
  The specialized or niche testing services noted above, as well as other
complex procedures, are sent to designated facilities where the Company has
concentrated the people, instruments and related resources for performing such
procedures so that quality and efficiency can be most effectively monitored.
The Company's Center for Molecular Biology and Pathology in Research Triangle
Park, North Carolina, also specializes in new test development and education
and training related thereto.
 
 CLIENTS
 
  The Company provides testing services to a broad range of health care
providers. During the year ended December 31, 1996, no client or group of
clients under the same contract accounted for more than two percent of the
Company's net sales. The primary client groups serviced by the Company
include:
 
                                      56
<PAGE>
 
  Independent Physicians and Physician Groups
   
  Physicians requiring testing for their patients who are unaffiliated with a
managed care plan are one of the Company's primary sources of testing
services. Fees for clinical laboratory testing services rendered for these
physicians are billed either to the physician, to the patient or the patient's
third party payor such as insurance companies, Medicare and Medicaid. Billings
are typically on a fee-for-service basis. If the billings are to the
physician, they are based on the wholesale or customer fee schedule and
subject to negotiation. Otherwise, the patient is billed at the laboratory's
retail or patient fee schedule and subject to third party payor limitations
and negotiation by physicians on behalf of their patients. Medicare and
Medicaid billings are based on government set fee schedules.     
 
  Hospitals
 
  The Company serves hospitals with services ranging from routine and
specialty testing to contract management services. Hospitals generally
maintain an on-site laboratory to perform immediately needed testing on
patients receiving care. However, they also refer less time sensitive
procedures, less frequently needed procedures and highly specialized
procedures to outside facilities, including independent clinical laboratories
and larger medical centers. The Company typically charges hospitals for any
such tests on a fee-for-service basis which is derived from the Company's
customer fee schedule.
 
  HMOs and Other Managed Care Groups
 
  The Company serves HMOs and other managed care organizations. These medical
service providers typically contract with a limited number of clinical
laboratories and then designate the laboratory or laboratories to be used for
tests ordered by participating physicians. Testing is mostly performed on a
capitated basis for managed care organizations. Under a capitated payment
contract, the Company agrees to cover all laboratory tests during a given
month for which the managed care organization agrees to pay a flat monthly
fee. The tests covered under agreements of this type are negotiated for each
contract, but usually include mostly routine tests and exclude highly
specialized tests. Many of the national and large regional managed care
organizations prefer to use large independent clinical labs such as the
Company because they can service them on a national basis.
 
  Other Institutions
 
  The Company serves other institutions, including governmental agencies,
large employers and other independent clinical laboratories that do not have
the breadth of the Company's testing capabilities. The institutions typically
pay on a negotiated or bid fee-for-service basis.
 
 PAYORS
 
  Most testing services are billed to a party other than the "client" that
ordered the test. In addition, tests performed by a single physician may be
billed to different payors depending on the medical benefits of a particular
patient. Payors other than the direct patient, include, among others,
insurance companies, managed care organizations, Medicare and Medicaid. Based
on the year ended December 31, 1996 billings to the Company's respective
payors based on the total volume of accessions are as follows:
 
<TABLE>
<CAPTION>
                                                    Accession Volume
                                                    as a % of Total
                                                    ----------------
                                                                     Revenue per
                                                          1996        Accession
                                                    ---------------- -----------
   <S>                                              <C>              <C>
   Private Patients................................        3-5%        $65-75
   Medicare, Medicaid and Insurance................      25-30%        $25-35
   Commercial Clients..............................      45-50%        $15-25
   Managed Care....................................      15-20%        $10-30
</TABLE>
 
 
                                      57
<PAGE>
 
AFFILIATIONS AND ALLIANCES
 
  The Company provides management services in a variety of health care
settings. The Company generally supplies the laboratory manager and other
laboratory personnel, as well as, equipment and testing supplies, to manage a
laboratory that is owned by a hospital, managed care organization or other
health care provider. In addition, the Company maintains a data processing
system to organize and report test results and to provide billing and other
pertinent information related to the tests performed in the managed
laboratory. Under the typical laboratory management agreement, the laboratory
manager, who is employed by the Company, reports to the hospital or clinic
administration. Thus, the hospital or clinic ("Provider") maintains control of
the laboratory. A pathologist designated by the Provider serves as medical
director for the laboratory.
 
  An important advantage the Company offers to its clients is the flexibility
of the Company's information systems used in contract management services. In
addition to the ability to be customized for a particular user's needs, the
Company's information systems also interface with several hospital and clinic
systems, giving the user more efficient and effective information flow.
 
  The Company's management service contracts typically have terms between
three and five years. However, most contracts contain a clause that permits
termination prior to the contract expiration date. The termination terms vary
but they generally fall into one of the following categories: (i) termination
without cause by either the Company or the contracted Provider after written
notice (generally 60 to 90 days prior to termination); (ii) termination by the
contracted Provider only if there are uncorrected deficiencies in the
Company's performance under the contract after notice by the contracted
Provider; or (iii) termination by the contracted Provider if there is a loss
of accreditation held by any Company laboratory that services the contracted
Provider, which accreditation is not reinstated within 30 days of the loss, or
up to 30 days' notice if there is a decline in the quality of services
provided under such contract which remains uncorrected after a 15-day period.
While the Company believes that it will maintain and renew its existing
contracts, there can be no assurance of such maintenance or renewal.
 
  As part of its marketing efforts, and as a way to focus on a contract
management client's particular needs, the Company has developed several
different pricing formulas for its management services agreements. In certain
cases, profitability may depend on the Company's ability to accurately predict
test volumes, patient encounters or the number of admissions in the case of an
inpatient facility.
 
  One of the Company's primary growth strategies is to develop an increasing
number of hospital alliances. See "Growth Strategies."
 
PCS HEALTH SYSTEMS, INC.
 
  In 1996, the Company began to focus efforts on selling its services directly
to payors of laboratory services. As a result of that focus, the Company
entered into an agreement with PCS to provide laboratory services as an
extension of its prescription card services. PCS, a wholly-owned subsidiary of
Eli Lilly and Company, is one of the leading pharmacy benefit management
companies in the United States with 58 million members covered by its programs
and services. The arrangement with PCS is modeled after the current PCS
prescription benefit plan. Patients will be provided with identification cards
indicating beneficiary eligibility for both PCS prescription benefits and
Company testing services. The Company will provide testing services as
requested and bill PCS based on a predetermined fee schedule. The Company will
pay PCS certain percentage and fixed fees for adjudication of claims.
 
  The process begins when a test sample is collected at the physician's office
or local Company service center. Patient eligibility will be determined at the
time of testing through interface with the PCS information system which will
expedite processing of the claim for reimbursement. The laboratory sample will
be sent via the courier to the Company testing facility. After tests are
completed, the results are forwarded to the
 
                                      58
<PAGE>
 
physician and the billing information regarding the tests performed are sent
to PCS for plan processing and claim remittance.
 
  The benefits to the client under the PCS arrangement include the ability to
tailor the program to meet the specific needs of client companies and their
employees and the ability to provide (i) combined utilization reporting for
potential outcomes measurement and disease management and (ii) consistent,
cost effective, quality laboratory services to employees in several geographic
locations through the Company's national presence. The benefits to the Company
are the ability to ensure eligibility at the time of specimen collection,
pricing above the Company's current composite price per accession despite a
significant discount to the client and improved cash flow through contracted
reimbursement. The Company expects to begin to realize revenues from this
agreement beginning in the second half of 1997.
 
SALES AND MARKETING AND CLIENT SERVICE
 
  The Company offers its services through a combination of direct sales
generalists and specialists. Sales generalists market the mainstream or
traditional routine laboratory services primarily to physicians, while
specialists concentrate on individual market segments, such as hospitals or
managed care organizations, or on testing niches, such as identity testing or
genetic testing. Specialist positions are established when an in-depth level
of expertise is necessary to effectively offer the specialized services. When
the need arises, specialists and generalists work cooperatively to address
specific opportunities. At December 31, 1996, the Company employed
approximately 267 generalists and 81 specialists. The Company's sales
generalists and specialists are compensated through a combination of salaries,
commissions and bonuses, at levels commensurate with each individual's
qualifications and responsibilities. Commissions are primarily based upon the
individual's productivity in generating new business for the Company.
 
  The Company also employs customer service associates ("CSAs") to interact
with clients on an ongoing basis. CSAs monitor the status of the services
being provided to clients, act as problem-solvers, provide information on new
testing developments and serve as the client's regular point of contact with
the Company. At December 31, 1996, the Company employed approximately 370
CSAs. CSAs are compensated with a combination of salaries and bonuses
commensurate with each individual's qualifications and responsibilities.
 
  The Company believes that the clinical laboratory service business is
shifting away from the traditional direct sales structure and into one in
which the purchasing decisions for laboratory services are increasingly made
by managed care organizations, insurance plans, employers and increasingly by
patients themselves. In view of these changes, the Company has adapted its
sales and marketing structure to more appropriately address the new
opportunities. For example, the Company has expanded its specialists sales
positions in both its primary business and its niche businesses in order to
maximize the Company's competitive strengths of advanced technology and
marketing focus. Additionally, the Company has begun to integrate selected
traditional sales and customer support functions into a new position, the
Account Manager, which will have responsibility for certain sales, service and
daily operational contact with physician-clients.
 
  The Company competes primarily on the basis of the quality of its testing,
reporting and information systems, its reputation in the medical community,
the pricing of its services and its ability to employ qualified personnel. As
a result of the required focus on the consolidation process related to the
Merger, however, the Company believes that its level of client service has
been negatively impacted. Therefore, in 1997, with the consolidation process
substantially completed, one of the Company's goals is to improve client
service. An important factor in improving client service includes the
Company's initiatives to improve its billing process. See "--Billing,"
 
 
                                      59
<PAGE>
 
INFORMATION SYSTEMS
 
  The Company has developed and implemented sophisticated management
information systems to monitor operations and control costs. All financial
functions are centralized in Burlington, North Carolina including purchasing
and accounting. Management believes this provides greater control over
spending as well as increased supervision and monitoring of results of
operations.
 
  The Company believes that the health care provider's need for data will
continue to place high demands on its information systems staff. The Company
operates several systems to handle laboratory, billing and financial data and
transactions. The Company believes that the efficient handling of information
involving clients, patients, payors and other parties will be a critical
factor in the Company's future success. The Corporate Information Systems
Division manages its information resources and programs on a consolidated
basis in order to achieve greater efficiency and economies of scale. In
addition, as a key part of its response to these challenges, the Company
employs a Chief Information Officer, whose responsibility is to integrate,
manage and develop the Company's information systems.
 
  In 1996, information systems activities have been focused on selection and
consolidation of the Company's multiple laboratory and billing systems to
standardized laboratory testing and billing systems. The Company has also been
focused on the establishment of regional data centers to handle all of the
information processing needs of the Company. The Company believes that it can
benefit from the conversion of its multiple billing systems into a centralized
system which it plans to implement once problems with the collection of
accounts receivable balances resulting from increased medical necessity and
diagnosis code requirements are corrected. These conversions are expected to
be completed within two years. The Company does not anticipate that the
conversion costs will result in a significant increase in capital expenditures
over the levels spent during the last several years.
 
BILLING
   
  Billing for laboratory services is a complicated process. Laboratories must
bill many different payors such as doctors, patients, hundreds of different
insurance companies, Medicare, Medicaid and employer groups, all of whom have
different billing requirements. The Company believes that a majority of its
bad debt expense is the result of non-credit related issues which slow the
billing process, create backlogs of unbilled requisitions and generally
increase the aging of accounts receivable. A primary cause of bad debt expense
is missing or incorrect billing information on requisitions. The Company
believes that this experience is similar to that of its primary competitors.
The Company performs the requested tests and returns back the test results
regardless of whether billing information has been provided at all or has been
provided incorrectly. The Company subsequently attempts to obtain any missing
information or rectify any incorrect billing information received from the
health care provider. Among the many other factors complicating the billing
process are more complicated billing arrangements due to contracts with third-
party administrators, disputes between payors as to the party responsible for
payment of the bill and auditing for specific compliance issues. Ultimately,
if all issues are not resolved in a timely manner, the related receivables are
written off.     
 
  The Company's bad debt expense has increased since the Merger principally
due to three developments that have further complicated the billing process:
(1) increased complexities in the billing process due to requirements of
managed care payors; (2) increased medical necessity and diagnosis code
requirements; and (3) existence of multiple billing information systems. See
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."
 
  During the fourth quarter of 1995 and the second quarter of 1996, the
Company recorded pre-tax special charges of $15 million and $10 million,
respectively, based on the Company's determination that additional reserves
were needed to cover potentially lower collection rates from several third-
party payors. The 1995 charge was necessitated by the deterioration in the
Company's accounts receivable collection rates in the fourth quarter of 1995
primarily due to the effect of increased medical necessity and diagnosis
 
                                      60
<PAGE>
 
code requirements of third party payors placed on the Company in the second
half of 1995. Additional such requirements were placed on the Company at the
beginning of 1996, which resulted in a further deterioration in accounts
receivable collection rates in the second quarter of 1996. As a result of this
further deterioration, the Company recorded the special charge of $10.0
million in the second quarter of 1996. In addition, the Company increased its
monthly provision for doubtful accounts beginning in the third quarter of 1996
as a result of continued lower collection rates. To date, accounts receivable
balances have continued to grow even though revenues have not increased.
Although there can be no assurance of success, the Company has recently
developed a number of initiatives to address the complexity of the billing
process and to improve collection rates. These initiatives include:
reorganization of departments to allow for more focus on specific issues;
retention of management consultants to assess the situation and assist in re-
engineering the billing process; establishment of a project group to address
inaccurate and missing billing information captured when the specimen is
received; addition of staff in each operating division to train field
personnel in billing matters and to review and approve contracts with third-
party payors to ensure that contracts can be properly billed; and training of
clients related to limited coverage tests and the importance of providing
diagnosis codes pertaining to such tests. Additionally, the Company believes
that it can benefit from the conversion of its multiple billing systems into a
centralized system which it plans to implement once the growth in accounts
receivable is stabilized.
 
QUALITY ASSURANCE
 
  The Company considers the quality of its tests to be of critical importance,
and it has established a comprehensive quality assurance program for all of
its laboratories and other facilities, designed to help assure accurate and
timely test results. In addition to the compulsory external inspections and
proficiency programs demanded by HCFA and other regulatory agencies, Company-
wide systems and procedures are in place to emphasize and monitor quality
assurance. All of the Company's regional laboratories are subject to on-site
evaluations, the College of American Pathologists ("CAP") proficiency testing
program, state surveys and the Company's own internal quality control
programs.
 
  External Proficiency/Accreditations. The Company participates in numerous
externally-administered, blind quality surveillance programs, including the
CAP program. The blind programs supplement all other quality assurance
procedures and give Company management the opportunity to review its technical
and service performance from the client's perspective.
 
  Internal Quality Control. The Company regularly performs internal quality
control testing by running quality control samples with known values with
patient samples submitted for testing. All quality control sample test results
are entered into the Company's national laboratory computer, which connects
the Company's facilities nationwide to a common on-line quality control
database. This system helps technologists and technicians check quality
control values and requires further prompt verification if any quality control
value is out of range. The Company has an extensive, internally administered
program of blind sample proficiency testing (i.e. the testing laboratory does
not know the sample being tested is a quality control sample), as part of
which the Company's locations receive specimens from the Company's Quality
Assurance and Corporate Technical Services departments for analysis.
 
  The CAP accreditation program involves both on-site inspections of the
laboratory and participation in the CAP's proficiency testing program for all
categories in which the laboratory is accredited by the CAP. The CAP is an
independent non-governmental organization of board certified pathologists
which offers an accreditation program to which laboratories can voluntarily
subscribe. The CAP has been accredited by HCFA to inspect clinical
laboratories to determine CLIA standards. A laboratory's receipt of
accreditation by the CAP satisfies the Medicare requirement for participation
in proficiency testing programs administered by an external source. All of the
Company's major laboratories are accredited by the CAP.
 
                                      61
<PAGE>
 
COMPETITION
 
  The clinical laboratory business is intensely competitive. The Company
believes that in 1996 the entire United States clinical laboratory testing
industry had revenues exceeding $36 billion; approximately 50% of such
revenues were attributable to hospital-affiliated laboratories, approximately
35% were attributable to independent clinical laboratories and approximately
15% were attributable to physicians in their offices and laboratories. As
recently as 1993, there were seven laboratories that provided clinical
laboratory testing services on a national basis: NHL, RBL, Quest, SmithKline,
Damon Corporation, Allied and Nichols Institute. Apart from the Merger and the
Allied Acquisition, Quest acquired Nichols Institute in August 1994 and Damon
Corporation in August 1993. In addition, in the last several years a number of
large regional laboratories have been acquired by national clinical
laboratories. There are presently three national independent clinical
laboratories: the Company; Quest, which had approximately $1.6 billion in
revenues from clinical laboratory testing in 1996; and SmithKline, which had
approximately $1.3 billion in revenues from clinical laboratory testing in
1996.
 
  In addition to the two other national clinical laboratories, the Company
competes on a regional basis with many smaller regional independent clinical
laboratories as well as laboratories owned by hospitals and physicians. The
Company believes that the following factors, among others, are often used by
health care providers in selecting a laboratory: (i) pricing of the
laboratory's test services; (ii) accuracy, timeliness and consistency in
reporting test results; (iii) number and type of tests performed; (iv) service
capability and convenience offered by the laboratory; and (v) its reputation
in the medical community. The Company believes that it competes favorably with
its principal competitors in each of these areas and is currently implementing
strategies to improve its competitive position. See "--Clients" and
"Management's Discussion and Analysis of Financial Condition and Results of
Operations."
 
  The Company believes that consolidation will continue in the clinical
laboratory testing business. In addition, the Company believes that it and the
other large independent clinical laboratory testing companies will be able to
increase their share of the overall clinical laboratories testing market due
to a number of external factors including cost efficiencies afforded by large-
scale automated testing, Medicare reimbursement reductions and the growth of
managed health care entities which require low-cost testing services and large
service networks. In addition, legal restrictions on physician referrals and
the ownership of laboratories as well as increased regulation of laboratories
are expected to contribute to the continuing consolidation of the industry.
 
 
                                      62
<PAGE>
 
PROPERTIES
 
  The following table summarizes certain information as to the Company's
principal operating and administrative facilities as of December 31, 1996.
 
<TABLE>
<CAPTION>
                         APPROXIMATE
                           AREA (IN
   NATURE OF LOCATION    SQUARE FEET)             NATURE OF OCCUPANCY
   ------------------    ------------ -------------------------------------------
<S>                      <C>          <C>
OPERATING FACILITIES:
Birmingham, Alabama.....   100,000    Lease expires 2005
Phoenix, Arizona........    43,000    Lease expires 2001; one 5 year renewal
                                       option
San Diego, California...    54,000    Lease expires 2007
Denver, Colorado........    20,000    Lease expires 2001; two 5 year renewal
                                       options
Tampa, Florida..........    95,000    Lease expires 2009; one 5 year renewal
                                       option
Chicago, Illinois.......    40,000    Lease expires 2003; two 5 year renewal
                                       options
Louisville, Kentucky....    60,000    Lease expires 2002; three 5 year renewal
                                       options
Detroit, Michigan.......    32,000    Lease expires 2004; two 5 year renewal
                                       options
Kansas City, Missouri...    78,000    Owned
Reno, Nevada............    16,000    Owned
                            14,000    Lease expires 1999; 2 year renewal option
Raritan, New Jersey.....   186,000    Owned
Uniondale, New York.....   108,000    Lease expires 2007; two 5 year renewal
                                       options
Burlington, North          205,000    Owned
 Carolina...............
Charlotte, North            25,000    Lease expires 1997; renewal option every 3
 Carolina...............               years
Research Triangle Park,
 North Carolina.........    74,000    Lease expires 2008, three 5 year renewal
                                       options
                           111,000    Lease expires 2011; three 5 year renewal
                                       options
Winston-Salem, North        73,000    Lease expires 2009; one 5 year renewal
 Carolina...............               option
Dublin, Ohio............    82,000    Owned
Memphis, Tennessee......    30,000    Lease expires 1999; one 5 year renewal
                                       option
Dallas, Texas...........    54,000    Lease expires 2004; one 5 year renewal
                                       option
Houston, Texas..........    32,000    Lease expires 1997
San Antonio, Texas......    44,000    Lease expires 2004; one 5 year renewal
                                       option
Salt Lake City, Utah....    20,000    Lease expires 2002; two 5 year renewal
                                       options
Chesapeake, Virginia....    21,000    Lease expires 2002; two 5 year renewal
                                       options
Herndon, Virginia.......    64,000    Leases expire 1999, 2004; one 5 year
                                       renewal option, one five year renewal
                                       option
Richmond, Virginia......    57,000    Lease expires 2001; one 5 year renewal
                                       option
Seattle, Washington.....    42,000    Lease expires 1998; two 5 year renewal
Fairmont, West                         options
 Virginia...............    25,000    Lease expires 2005; three 5 year renewal
                                       options

ADMINISTRATIVE          
 FACILITIES:             
Burlington, North        
 Carolina...............   160,000    Owned
                         
                           188,000    Leases expire 1997-2008; various options to
                                       purchase or renew
</TABLE>
 
                                      63
<PAGE>
 
  All of the major laboratory facilities have been built or improved for the
single purpose of providing clinical laboratory testing services. The Company
believes that these facilities are suitable and adequate and have sufficient
production capacity for its currently foreseeable level of operations. The
Company believes that if it were to lose the lease on any of the facilities it
presently leases, it could find alternate space at competitive market rates
and readily relocate its operations to such new locations without material
disruption to its operations.
 
EMPLOYEES
 
  At December 31, 1996, the Company employed approximately 22,000 people.
These include approximately 18,000 full-time employees and approximately 4,000
part-time employees, which represents the equivalent of approximately 19,300
persons full-time. Of the approximately 19,300 full-time equivalent employees,
approximately 400 are sales personnel, approximately 17,000 are laboratory and
distribution personnel and approximately 1,900 are administrative and data
processing personnel. A subsidiary of the Company has one collective
bargaining agreement which covers approximately 20 employees. The Company
believes that its overall relations with its employees are good.
 
LEGAL PROCEEDINGS
   
  The Company is involved in certain claims and legal actions arising in the
ordinary course of business. In the opinion of management, based upon the
advice of counsel, the ultimate disposition of these matters will not have a
material adverse effect on the financial position or results of operations of
the Company. In addition, the Company has recently been contacted by
representatives of certain insurance companies, and individuals in a purported
class action, who have asserted claims for private reimbursement which are
similar to the Government claims recently settled. The Company is carefully
evaluating these claims, and although there can be no assurance, based upon
the information currently available to it, management does not believe that
the ultimate outcome of these claims will have a material adverse effect on
its financial condition. However, due to the early stage of such claims,
management cannot make an estimate of loss or predict whether or not such
claims will have a material adverse effect on the Company's results of
operations in any particular period.     
 
                                      64
<PAGE>
 
                         REGULATION AND REIMBURSEMENT
 
GENERAL
 
  The clinical laboratory industry is subject to significant governmental
regulation at the Federal, state and local levels. Under CLIA, virtually all
clinical laboratories, including those owned by the Company, must be certified
by the Federal government. Many clinical laboratories must also meet
governmental standards, undergo proficiency testing and are subject to
inspection. Certifications or licenses are also required by various state and
local laws.
 
  The health care industry is undergoing significant change as third-party
payors, such as Medicare and Medicaid and insurers, increase their efforts to
control the cost, utilization and delivery of health care services. In an
effort to address the problem of increasing health care costs, legislation has
been proposed or enacted at both the Federal and state levels to regulate
health care delivery in general and clinical laboratories in particular. Some
of the proposals include managed competition, global budgeting and price
controls. Although the Clinton Administration's health care reform proposal,
initially advanced in 1994, was not enacted, such proposal or other proposals
may be considered in the future. In particular, the Company believes that
reductions in reimbursement for Medicare services will continue to be
implemented from time to time. Reductions in the reimbursement rates of other
third-party payors are likely to occur as well. The Company cannot predict the
effect health care reform, if enacted, would have on its business, and there
can be no assurance that such reforms, if enacted, would not have a material
adverse effect on the Company's business and operations.
 
 REGULATION OF CLINICAL LABORATORIES
 
  CLIA extends Federal oversight to virtually all clinical laboratories by
requiring that laboratories be certified by the government. Many clinical
laboratories must also meet governmental quality and personnel standards,
undergo proficiency testing and be subject to biennial inspection. Rather than
focusing on location, size or type of laboratory, this extended oversight is
based on the complexity of the tests performed by the laboratory.
 
  In 1992, HHS published regulations implementing CLIA. The quality standards
and enforcement procedure regulations became effective in 1992, although
certain personnel, quality control and proficiency testing requirements are
currently being phased in by HHS. The quality standards regulations divide all
tests into three categories (waivered, moderate complexity and high
complexity) and establish varying requirements depending upon the complexity
of the test performed. A laboratory that performs high complexity tests must
meet more stringent requirements than a laboratory that performs only moderate
complexity tests, while those that perform only one or more of approximately
twelve routine "waivered" tests may apply for a waiver from most requirements
of CLIA. All major and many smaller company facilities are certified by CLIA
to perform high complexity testing. The remaining smaller testing sites of the
Company are certified by CLIA to perform moderate complexity testing or have
obtained a waiver from most requirements of CLIA. Generally, the HHS
regulations require, for laboratories that perform high complexity or moderate
complexity tests, the implementation of systems that ensure the accurate
performance and reporting of test results, establishment of quality control
systems, proficiency testing by approved agencies and biennial inspections.
 
  The sanction for failure to comply with these regulations may be suspension,
revocation or limitation of a laboratory's CLIA certificate necessary to
conduct business, significant fines and criminal penalties. The loss of a
license, imposition of a fine or future changes in such Federal, state and
local laws and regulations (or in the interpretation of current laws and
regulations) could have a material adverse effect on the Company.
 
  The Company is also subject to state regulation. CLIA provides that a state
may adopt more stringent regulations than Federal law. For example, state law
may require that laboratory personnel meet certain
 
                                      65
<PAGE>
 
qualifications, specify certain quality controls, maintain certain records and
undergo proficiency testing. For example, certain of the Company's
laboratories are subject to the State of New York's clinical laboratory
regulations, which contain provisions that are more stringent than Federal
law.
 
  The Company's laboratories have continuing programs to ensure that their
operations meet all applicable regulatory requirements.
 
 REGULATION AFFECTING REIMBURSEMENT OF CLINICAL LABORATORY SERVICES
 
  Containment of health care costs, including reimbursement for clinical
laboratory services, has been a focus of ongoing governmental activity. In
1984, Congress established a Medicare fee schedule for clinical laboratory
services performed for patients covered under Part B of the Medicare program.
Subsequently, Congress imposed a national ceiling on the amount that can be
paid under the fee schedule. Laboratories bill the program directly and must
accept the scheduled amount as payment in full for covered tests performed on
behalf of Medicare beneficiaries. In addition, state Medicaid programs are
prohibited from paying more than the Medicare fee schedule amount for clinical
laboratory services furnished to Medicaid recipients. In 1996 and 1995 the
Company derived approximately 23% and 28%, respectively, of its net sales from
tests performed for beneficiaries of Medicare and Medicaid programs. In
addition, the Company's other business depends significantly on continued
participation in these programs because clients often want a single laboratory
to perform all of their testing services. Since 1984, Congress has
periodically reduced the ceilings on Medicare reimbursement to clinical
laboratories from previously authorized levels. In 1993, pursuant to
provisions in the Omnibus Budget and Reconciliation Act of 1993 ("OBRA '93"),
Congress reduced, effective January 1, 1994, the Medicare national limitations
from 88% of the 1984 national median to 76% of the 1984 national median, which
reductions were implemented on a phased-in basis from 1994 through 1996 (to
84% in 1994, 80% in 1995 and 76% in 1996). The 1996 reduction to 76% was
implemented as scheduled on January 1, 1996. OBRA '93 also eliminated the
provision for annual fee schedule increases based upon the consumer price
index for 1994 and 1995. These reductions were partially offset, however, by
annual consumer price index fee schedule increases of 3.2% and 2.7% in 1996
and 1997, respectively. Because a significant portion of the Company's costs
are relatively fixed, these Medicare reimbursement reductions have a direct
adverse effect on the Company's net earnings and cash flows. The Company
cannot predict if additional Medicare reductions will be implemented.
 
  On January 1, 1993, numerous changes in the Physicians' Current Procedural
Terminology ("CPT") were published. The CPT is a coding system that is
published by the American Medical Association. It lists descriptive terms and
identifying codes for reporting medical and medically related services. The
Medicare and Medicaid programs require suppliers, including laboratories, to
use the CPT codes when they bill the programs for services performed. HCFA
implemented these CPT changes for Medicare on August 1, 1993. The CPT changes
have altered the way the Company bills third-party payors for some of its
services, thereby reducing the reimbursement the Company receives from those
programs for some of its services. For example, certain codes for
calculations, such as LDL cholesterol, were deleted and are no longer a
payable service under Medicare and Medicaid.
 
  Moreover, Medicare denied reimbursement to NHL for claims submitted for HDL
cholesterol and serum ferritin (a measure of iron in the blood) tests from
September 1993 to December 1993, at which time NHL removed such tests from its
basic test profiles.
 
  In 1996, the HCFA implemented changes in the policies used to administer
Medicare payments to clinical laboratories for the most frequently performed
automated blood chemistry profiles. Among other things, the changes
established a consistent standard nationwide for the content of the automated
chemistry profiles. Another change incorporated in the HCFA policy requires
laboratories performing certain automated blood chemistry profiles to obtain
and provide documentation of the medical necessity of tests included in the
profiles for each Medicare beneficiary. The Company expects to incur
additional
 
                                      66
<PAGE>
 
costs associated with the implementation of these requirements. The amount of
additional costs and potential reductions in reimbursement for certain
components of chemistry profiles and the impact on the Company's financial
condition and results of operations have not yet been determined.
 
  Future changes in Federal, state and local regulations (or in the
interpretation of current regulations) affecting governmental reimbursement
for clinical laboratory testing could have a material adverse effect on the
Company. The Company is unable to predict, however, whether and what type of
legislation will be enacted into law.
 
 FRAUD AND ABUSE REGULATIONS
 
  The Medicare and Medicaid anti-kickback laws prohibit intentionally paying
anything of value to influence the referral of Medicare and Medicaid business.
HHS has published safe harbor regulations which specify certain business
activities that, although literally covered by the laws, will not violate the
Medicare/Medicaid anti-kickback laws. Failure to fall within a safe harbor
does not constitute a violation of the anti-kickback laws if all conditions of
the safe harbor are met; rather, the arrangement would remain subject to
scrutiny by HHS.
 
  In October 1994, the OIG issued a Special Fraud Alert, which set forth a
number of practices allegedly engaged in by clinical laboratories and health
care providers that the OIG believes violate the anti-kickback laws. These
practices include providing employees to collect patient samples at physician
offices if the employees perform additional services for physicians that are
typically the responsibility of the physicians' staff; selling laboratory
services to renal dialysis centers at prices that are below fair market value
in return for referrals of Medicare tests which are billed to Medicare at
higher rates; providing free testing to a physician's HMO patients in
situations where the referring physicians benefit from such lower utilization;
providing free pickup and disposal of bio-hazardous waste for physicians for
items unrelated to a laboratory's testing services; providing facsimile
machines or computers to physicians that are not exclusively used in
connection with the laboratory services performed; and providing free testing
for health care providers, their families and their employees (professional
courtesy testing). The OIG stressed in the Special Fraud Alert that when one
purpose of the arrangements is to induce referral of program-reimbursed
laboratory testing, both the clinical laboratory and the health care provider
or physician may be liable under the anti-kickback laws and may be subject to
criminal prosecution and exclusion from participation in the Medicare and
Medicaid programs.
 
  According to the 1995 work plan of the OIG, its recently established Office
of Civil Fraud and Administrative Adjudication ("OCFAA") will be responsible
for protecting the government-funded health care programs and deterring
fraudulent conduct by health care providers through the negotiation and
imposition of civil monetary penalties, assessments and program exclusions.
The OCFAA works very closely with the Department of Justice, the Office of
General Counsel and the OIG investigative and audit offices in combating fraud
and abuse. In addition, the OIG has stated in its 1995 work plan that it will
determine the extent to which laboratories supply physicians' offices with
phlebotomists (blood-drawing technicians), offer management services or
medical waste pick-up to physicians, provide training to physicians or engage
in other financial arrangements with purchasers of laboratories' services. The
OIG will assess the potential benefits of such arrangements as well as the
extent to which such arrangements might be unlawful.
 
  In March 1992, HCFA published proposed regulations to implement the Medicare
statute's prohibition (with certain exceptions) on referrals by physicians who
have an investment interest in or a compensation arrangement with
laboratories. The prohibition on referrals also applies where an immediate
family member of a physician has an investment interest or compensation
arrangement with a laboratory. The proposed regulations would define
remuneration that gives rise to a compensation arrangement as including
discounts granted by a laboratory to a physician who sends testing business to
the laboratory and who pays the laboratory for such services. If that
definition of remuneration were to have become effective, it
 
                                      67
<PAGE>
 
could have had an impact on the way the Company prices its services to
physicians. However, in August 1993, the referenced Medicare statute was
amended by OBRA '93. One of these amendments makes it clear that day-to-day
transactions between laboratories and their customers, including, but not
limited to, discounts granted by laboratories to their customers, are not
affected by the compensation arrangement provisions of the Medicare statute.
 
 ENVIRONMENTAL AND OCCUPATIONAL SAFETY
 
  The Company is subject to licensing and regulation under Federal, state and
local laws and regulations relating to the protection of the environment and
human health and safety, including laws and regulations relating to the
handling, transportation and disposal of medical specimens, infectious and
hazardous waste and radioactive materials as well as to the safety and health
of laboratory employees. All Company laboratories are subject to applicable
Federal and state laws and regulations relating to biohazard disposal of all
laboratory specimens and the Company utilizes outside vendors for disposal of
such specimens. In addition, the Federal Occupational Safety and Health
Administration has established extensive requirements relating to workplace
safety for health care employers, including clinical laboratories, whose
workers may be exposed to blood-borne pathogens such as HIV and the hepatitis
B virus. These regulations, among other things, require work practice
controls, protective clothing and equipment, training, medical follow-up,
vaccinations and other measures designed to minimize exposure to, and
transmission of, blood-borne pathogens. Although the Company is not aware of
any current material non-compliances with such Federal, state and local laws
and regulations, failure to comply could subject the Company to denial of the
right to conduct business, fines, criminal penalties and/or other enforcement
actions.
 
 DRUG TESTING
 
  Drug testing for public sector employees is regulated by the Substance Abuse
and Mental Health Services Administration ("SAMSHA") (formerly the National
Institute on Drug Abuse), which has established detailed performance and
quality standards that laboratories must meet in order to be approved to
perform drug testing on employees of Federal government contractors and
certain other entities. To the extent that the Company's laboratories perform
such testing, each must be certified as meeting SAMSHA standards. The
Company's Research Triangle Park, North Carolina; Memphis, Tennessee; Raritan,
New Jersey; Seattle, Washington; Herndon, Virginia and Reno, Nevada
laboratories are SAMSHA certified.
 
 CONTROLLED SUBSTANCES
 
  The use of controlled substances in testing for drugs of abuse is regulated
by the Federal Drug Enforcement Administration.
 
OIG INVESTIGATIONS
   
  Several Federal agencies are responsible for investigating allegations of
fraudulent and abusive conduct by health care providers, including the Federal
Bureau of Investigation, the OIG and the DOJ. In its published work plan for
1992-1993, the OIG indicated its intention to target certain laboratory
practices for investigation and prosecution. Pursuant to one such project
described in such work plan, entitled "Laboratory Unbundle," laboratories that
offer packages of tests to physicians and "unbundle" them into several "tests
to get higher reimbursement when billing Medicare and Medicaid" will be
identified and "suitable cases will be presented for prosecution." Under
another project described in such work plan, laboratories "that link price
discounts to the volume of physician referrals, "unbundle' tests in order to
bill Medicare at a higher total rate, and conduct unnecessary tests . . . will
be identified to coordinate investigations through the country."     
 
 1996 GOVERNMENT SETTLEMENT
 
  In August 1993, RBL and Allied each received a subpoena from the OIG
requesting documents and information concerning pricing and billing practices.
In September 1993, NHL received a subpoena from
 
                                      68
<PAGE>
 
   
the OIG which required NHL to provide documents to the OIG concerning its
regulatory compliance procedures. Among other things, the OIG subpoena
received by RBL and Allied called for the production of documents regarding 14
blood chemistry tests which were being or had been performed by certain
independent clinical laboratories in conjunction with automated chemistry
profiles and which were being or had been billed separately to Medicare or
Medicaid. An automated chemistry profile is a grouping of tests that can be
performed together on a single specimen and that Medicare and Medicaid pay
under the Medicare fee schedule. The government's investigations covered
billings for tests performed by NHL, RBL and Allied from 1988 to 1994. These
tests were deemed by regulators to be medically unnecessary. The
investigations were part of a broad-based federal inquiry into Medicare and
related billings that have resulted in financial settlements with a number of
other clinical laboratories. The inquiries have also prompted the imposition
of more stringent regulatory compliance requirements industry-wide. In
November 1996, the Company agreed to enter into a comprehensive Corporate
Integrity Agreement and to pay $182 million to settle civil claims involving
Medicare and related government billings for tests performed by NHL, RBL and
Allied. These claims arose out of the government's contention that
laboratories offering profiles containing certain test combinations had the
obligation to notify ordering physicians how much would be billed to the
government for each test performed for a patient whose tests are paid for by
Medicare, Medicaid or other government agency. The government contended claims
submitted for tests ordered by physicians and performed by the laboratories
were improper. The Company settled these allegations without an admission of
fault. The Corporate Integrity Agreement, among other things, requires that
detailed notifications be made to physicians. In addition, as part of the
overall settlement, a San Diego laboratory that was formerly part of Allied
agreed to plead guilty to a charge of filing a false claim with Medicare and
Medicaid in 1991 and to pay $5 million to the Federal government. The assets
of the San Diego laboratory were sold by Allied in 1992, two years before the
Allied Acquisition. As is customary with asset sales, Allied retained the
liability for conduct preceding the sale--a liability the Company later
succeeded to, following the Allied Acquisition and Merger. As a result of
negotiations related to the 1996 Government Settlement, the Company recorded a
charge of $185.0 million in the third quarter of 1996 to increase reserves for
the 1996 Government Settlement described above and other related expenses of
government and private claims resulting therefrom. In addition, the Company
has recently been contacted by representatives of certain insurance companies,
and individuals in a purported class action, who have asserted claims for
private reimbursement which are similar to the Government claims recently
settled. The Company is carefully evaluating these claims, and although there
can be no assurance, based upon the information currently available to it,
management does not believe that the ultimate outcome of these claims will
have a material adverse effect on its financial condition. However, due to the
early stage of such claims, management cannot make an estimate of loss or
predict whether or not such claims will have a material adverse effect on the
Company's results of operations in any particular period.     
 
  Pursuant to the 1996 Government Settlement, the Company paid $187 million in
December 1996. The Settlement Payment was paid from the proceeds of a $187
million loan made by Roche to the Company in December 1996. See "Certain
Relationships and Related Transactions Other Transactions with Roche."
 
 1992 NHL GOVERNMENT SETTLEMENT
 
  In November 1990, NHL became aware of a grand jury inquiry relating to its
pricing practices being conducted by the United States Attorney for the San
Diego area (the Southern District of California) with the assistance of the
OIG. On December 18, 1992, NHL entered into a settlement with the United
States Attorney (the "1992 NHL Government Settlement"), which related to the
government's contention that NHL improperly included tests for HDL cholesterol
and serum ferritin in its basic test profile, without clearly offering an
alternative profile that did not include these medical tests. The government
also contended that, in certain instances, physicians were told that these
additional tests would be included in the basic test profile at no extra
charge. As a result, the government contended, NHL's marketing activities
denied physicians the ability to exercise their judgment as to the medical
necessity of these tests.
 
                                      69
<PAGE>
 
  Pursuant to the 1992 NHL Government Settlement, NHL pleaded guilty to the
charge of presenting two false claims to the Civilian Health and Medical
Program of the Uniformed Services ("CHAMPUS") and paid a $1 million fine. In
connection with pending and threatened civil claims, NHL also agreed to pay
$100 million to the Federal Government in installments. As of December 31,
1995, all such payments due to the government under the 1992 NHL Government
Settlement had been made. Concurrent with the 1992 NHL Government Settlement,
NHL settled related Medicaid claims with states that account for over 99.5% of
its Medicaid business and paid $10.4 million to the settling states.
 
 1994 ALLIED GOVERNMENT SETTLEMENT
 
  In April 1994, Allied received a subpoena from the OIG requesting documents
and certain information regarding the Medicare billing practices of its
Cincinnati, Ohio clinical laboratory with respect to certain cancer screening
tests. In March 1995, Allied resolved the issues raised by the April 1994
subpoena and a related qui tam action commenced in Cincinnati, Ohio Federal
court by entering into agreements with, among others, HHS, the United States
Department of Justice and the relators in the qui tam action pursuant to which
it agreed to pay $4.9 million to settle all pending claims and inquiries
regarding these billing practices and certain others. NHL had previously
established reserves that were adequate to cover such settlement payments. In
connection with the settlement, Allied agreed with HHS, among other things, to
implement a corporate integrity program to ensure that Allied and its
representatives remain in compliance with applicable laws and regulations and
to provide certain reports and information to HHS regarding such compliance
efforts.
 
COMPLIANCE PROGRAM
 
  Because of evolving interpretations of regulations and the national debate
over health care, compliance with all Medicare, Medicaid and other government-
established rules and regulations has become a significant factor throughout
the clinical laboratory industry. The Company has implemented a comprehensive
company-wide compliance program. The objective of the program is to develop,
implement and update as necessary aggressive and reliable compliance
safeguards. Emphasis is placed on developing training programs for personnel
to attempt to assure the strict implementation of all rules and regulations.
Further, in-depth reviews of procedures, personnel and facilities are
conducted to assure regulatory compliance throughout the Company. Such
sharpened focus on regulatory standards and procedures will continue to be a
priority for the Company in the future.
 
  The Company believes that it is in compliance in all material respects with
all statutes, regulations and other requirements applicable to its clinical
laboratory operations. The clinical laboratory testing industry is, however,
subject to extensive regulation, and many of these statutes and regulations
have not been interpreted by the courts. There can be no assurance therefore
that applicable statutes and regulations might not be interpreted or applied
by a prosecutorial, regulatory or judicial authority in a manner that would
adversely affect the Company. Potential sanctions for violation of these
statutes and regulations include significant fines and the loss of various
licenses, certificates and authorizations.
 
                                      70
<PAGE>
 
                                  MANAGEMENT
 
  The following table sets forth the directors and executive officers of the
Company:
 
<TABLE>   
<CAPTION>
                NAME                  AGE                    POSITION
- ------------------------------------  --- ---------------------------------------------
<S>                                   <C>   <C>
Thomas P. Mac Mahon.................   50   Chairman of the Board, President, Chief
                                             Executive Officer and Director
Jean-Luc Belingard..................   48   Director
Wendy E. Lane.......................   46   Director
Robert E. Mittelstaedt, Jr. ........   53   Director
James B. Powell, M.D. ..............   58   Director
David B. Skinner, M.D. .............   62   Director
Andrew G. Wallace, M.D. ............   62   Director
Wesley R. Elingburg.................   40   Executive Vice President, Chief Financial
                                             Officer and Treasurer
Larry L. Leonard....................   56   Executive Vice President
Richard L. Novak....................   56   Executive Vice President
Bradford T. Smith...................   43   Executive Vice President, General Counsel,
                                             Corporate Compliance Officer and Secretary
Stevan R. Stark.....................   49   Executive Vice President
Ronald B. Sturgill..................   60   Executive Vice President
William M. Meilahn..................   56   Senior Vice President, Chief Information
                                             Officer
</TABLE>    
   
  Thomas P. Mac Mahon has served as Chairman of the Board and Director since
April 28, 1996. Prior to such date and since April 28, 1995 he served as Vice
Chairman and Director. Mr. Mac Mahon has been President and Chief Executive
Officer since January 1997. Mr. Mac Mahon was Senior Vice President of
Hoffmann-La Roche Inc. from 1993 to January 1997 and President of Roche
Diagnostics Group and a Director and member of the Executive Committee of
Hoffmann-La Roche Inc. from 1988 to January 1997. Mr. Mac Mahon was also a
Director of HLR until December 1996. As Senior Vice President of Hoffmann-La
Roche Inc. and President of Roche Diagnostics Group, Mr. Mac Mahon was
responsible for the management of all United States operations of the
diagnostic business of Hoffmann-La Roche Inc. Mr. Mac Mahon is also Chairman
of the Board of AutoCyte, Inc. ("AutoCyte"). Mr. Mac Mahon is a member of the
management committee of the Company.     
 
  Jean-Luc Belingard has served as a Director of the Company since the Merger.
Mr. Belingard is Director General of the Diagnostics Division and member of
the Executive Committee of F. Hoffmann-La Roche Ltd ("F. Hoffmann-La Roche"),
Basel, Switzerland, a subsidiary of Roche. He joined F. Hoffmann-La Roche in
1982, and held various positions prior to being named to his current positions
in 1990. His current responsibilities include the management of the worldwide
diagnostic business of F. Hoffmann-La Roche. Mr. Belingard is also a director
of Perkin-Elmer Corporation, Norwalk, Connecticut and a Foreign Trade Advisor
to the French Government.
 
  Wendy E. Lane has been a Director of the Company since November 1996. Ms.
Lane has been Chairman of Lane Holdings, Inc., a private investment firm,
since 1992. Prior to forming Lane Holdings, Inc., Ms. Lane was a Principal and
Managing Director of Donaldson, Lufkin & Jenrette, an investment banking firm,
serving in these and other positions from 1980 to 1992. Ms. Lane also serves
as a director of Watts Industries, Inc.
 
  Robert E. Mittelstaedt, Jr. has been a Director of the Company since
November 1996. Mr. Mittelstaedt is Vice Dean of The Wharton School of the
University of Pennsylvania, Director of the Aresty Institute of Executive
Education. Mr. Mittelstaedt has held these and other positions with the
Wharton school since 1973, with the exception of the period from 1985 to 1989
when he founded, served as President and Chief Executive Officer, and sold
Intellego, Inc., a company engaged in practice management, systems
 
                                      71
<PAGE>
 
development and service bureau billing operations in the medical industry. Mr.
Mittelstaedt is also a director of A.G. Simpson Automotive Systems, Inc. and
IS&S Inc.
   
  James B. Powell, M.D. has served as a Director of the Company since the
Merger. From the Merger to January 1997, Dr. Powell served as President and
Chief Executive Officer. Previously, Dr. Powell was President of RBL from 1982
until the Merger. Dr. Powell has been President, Chief Executive Officer and
Director of AutoCyte, Inc. since January 1997. AutoCyte is a newly formed
company specializing in the development of advanced, automated pap-smear
testing technologies. Dr. Powell is a principal investor in AutoCyte. He is a
medical doctor and became certified in anatomic and clinical pathology in
1969.     
 
  David B. Skinner, M.D. has served as a Director of the Company since the
Merger. Dr. Skinner has been President and Chief Executive Officer of New York
Hospital and Professor of Surgery at Cornell Medical School since 1987. He was
the Chairman of the Department of Surgery and Professor of Surgery at the
University of Chicago Hospitals and Clinics from 1972 to 1987.
 
  Andrew G. Wallace, M.D. has served as a Director of the Company since the
Merger. Dr. Wallace has served as both the Dean of Dartmouth Medical School
and Vice President for Health Affairs at Dartmouth College since 1990. He was
the Vice Chancellor for Health Affairs at Duke University and the Chief
Executive Officer of Duke Hospital from 1981 to 1990.
 
  Wesley R. Elingburg has served as Executive Vice President, Chief Financial
Officer and Treasurer since October 24, 1996. Prior to this date and since the
Merger, Mr. Elingburg was Senior Vice President, Finance. Mr. Elingburg is
responsible for the day to day supervision of the finance function of the
Company, including treasury functions. Previously, Mr. Elingburg served as
Senior Vice President-Finance and Treasurer of RBL from 1988 through April
1995 and Assistant Vice President of Hoffmann-La Roche from 1989 until the
Merger in April 1995. Mr. Elingburg is a member of the management committee of
the Company.
 
  Larry L. Leonard has served as Executive Vice President of the Company since
1993. He joined the Company in 1978. Dr. Leonard, who holds a Ph.D degree in
microbiology, was named Senior Vice President of the Company in 1991 and
previously was Vice President-Division Manager. Dr. Leonard oversees Western
Operations of the Company which includes the Central, Great Lakes, Midlands,
Southwest and West Divisions. Dr. Leonard is a member of the management
committee of the Company.
   
  Richard L. Novak has served as Executive Vice President of the Company since
March 1997. Previous to joining the Company, Mr. Novak was employed by
SmithKline Beecham Clinical Laboratories for more than the past five years
serving in a variety of senior management positions including Senior Vice
President, U.S. Operations and most recently President, International. Mr.
Novak oversees operations of the Company's Eastern Operations which include
the Mid-Atlantic, Northeast, South and South Atlantic Divisions. Mr. Novak is
a member of the management committee of the Company.     
 
  Bradford T. Smith has served as Executive Vice President, General Counsel
and Secretary since the Merger. He was appointed Corporate Compliance Officer
in August 1996. Previously, Mr. Smith served as Assistant General Counsel of
HLR, Division Counsel of RBL and Assistant Secretary and member of RBL's
Senior Management Committee from 1988 until April 1995. Mr. Smith served as
Assistant Secretary of HLR from 1989 until the Merger and as an Assistant Vice
President of HLR during 1992 and 1993. Mr. Smith is a member of the management
committee of the Company.
 
  Stevan R. Stark was appointed Executive Vice President in October 1996 and
was Senior Vice President, New York Division, Cranford Region and
Alliance/Hospital Division since the Merger in April 1995. Mr. Stark oversees
the Company's sales operations including business alliances, managed care and
new business development. Previously, Mr. Stark was a Vice President and
Division Manager from 1991 to 1995 and a Division Manager from 1986 to 1991.
He joined the Company in 1983. Mr. Stark is a member of the management
committee of the Company.
 
                                      72
<PAGE>
 
  Ronald B. Sturgill has served as Executive Vice President since October
1996. Mr. Sturgill oversees operations in the Company's South Atlantic
Division and certain corporate functions. Prior to that date and since the
Merger, Mr. Sturgill served as Senior Vice President, South Atlantic Division.
Mr. Sturgill served as Senior Vice President, Administration of RBL from 1987
until the Merger where his duties included the supervision of Information
Systems, Human Resources, Sales Support and Training. Mr. Sturgill is a member
of the management committee of the Company.
 
  William M. Meilahn has served as Senior Vice President and Chief Information
Officer since December 1995. Previously, Mr. Meilahn was Executive Vice
President, MIS and a director of Eduserv Technologies, Inc. from 1993 through
1996, and was a Vice President in various capacities for Automatic Data
Processing, Inc. from 1983 through 1993. Mr. Meilahn is a member of the
management committee of the Company.
 
                                      73
<PAGE>
 
                          OWNERSHIP OF CAPITAL STOCK
   
  The following table sets forth as of April 15, 1997, the total number of
shares of Common Stock beneficially owned, and the percent so owned, by (i)
each director of the Company who is a beneficial owner of any shares of Common
Stock, (ii) each person known to the Company to be the beneficial owner of
more than 5% of the outstanding Common Stock, (iii) certain executive officers
and (iv) all current directors and officers as a group. The number of shares
owned are those "beneficially owned," as determined under the rules of the
Commission, and such information is not necessarily indicative of beneficial
ownership for any other purpose. Under such rules, beneficial ownership
includes any shares as to which a person has sole or shared voting power or
investment power and any shares of common stock which the person has the right
to acquire within 60 days through the exercise of any option, warrant or
right, through conversion of any security, or pursuant to the automatic
termination of power of attorney or revocation of trust, discretionary account
or similar arrangement.     
 
<TABLE>   
<CAPTION>
                                                                    PERCENT OF
                                                                      COMMON
                                                  NUMBER OF SHARES     STOCK
               BENEFICIAL OWNER                  BENEFICIALLY OWNED OUTSTANDING
               ----------------                  ------------------ -----------
<S>                                              <C>                <C>
Roche Holdings, Inc............................      61,329,256(1)     49.9%
 15 East North Street
 Dover, DE 19901
Ronald O. Perelman.............................      14,527,244(2)     11.8%
 35 East 62nd Street
 New York, NY 10021
Thomas P. Mac Mahon............................         170,663(3)        *
James B. Powell, M.D. .........................             --            *
Jean-Luc Belingard.............................           3,996           *
Wendy E. Lane..................................             946           *
Robert E. Mittelstaedt, Jr. ...................             946           *
David B. Skinner, M.D. ........................           3,996           *
Andrew G. Wallace, M.D. .......................           3,996           *
Larry L. Leonard, Ph.D.........................          51,779           *
Bradford T. Smith..............................          30,000           *
Stevan R. Stark................................          33,601           *
Wesley R. Elingburg............................          30,000           *
Haywood D. Cochrane, Jr. ......................         107,735           *
David C. Weavil................................              --           *
All current directors and executive officers as
 a group (14 persons) .........................         354,923(3)        *
</TABLE>    
- --------
* Less than 1%
   
(1) As reported on the Schedule 13D filed with the Commission on May 8, 1995,
    on behalf of Roche Holdings, 61,329,256 of these shares are directly held
    by Roche Holdings (49,008,538 shares of which were previously held by
    HLR). Roche Holdings is an indirect wholly owned subsidiary of Roche. Dr.
    h.c. Paul Sacher, an individual and citizen of Switzerland has, pursuant
    to an agreement, the power to vote a majority of the voting shares of
    Roche.     
(2) As reported in the Schedule 13G/A filed with the Commission on February
    13, 1997, on behalf of Mafco, all shares are owned by NHCG, an indirect
    wholly owned subsidiary of Mafco. All of the capital stock of Mafco is
    owned by Mr. Ronald O. Perelman.
   
(3) Beneficial ownership by officers and directors of the Company includes
    shares of Common Stock which such officers and directors have the right to
    acquire upon the exercise of options which either are vested or which may
    vest within 60 days. The number of shares of Common Stock included in the
    table as beneficially owned which are subject to such options is as
    follows: Mr. Mac Mahon--166,667; Dr Leonard--44,130; Mr. Smith--30,000;
    Mr. Stark--33,601; Mr. Elingburg--30,000; all directors and executive
    officers as a group (not including Dr. Powell and Messrs. Cochrane and
    Weavil who are no longer employed by the Company)--329,398.     
 
                                      74
<PAGE>
 
                CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS
 
THE STOCKHOLDER AGREEMENT
   
  In connection with the Merger, the Company, HLR, Roche Holdings and
Hoffmann-La Roche Inc. entered into a stockholder agreement dated as of April
28, 1995. In December 1996, HLR was merged with and into Roche Holdings. The
Stockholder Agreement contains certain provisions relating to (i) the
governance of the Company following the Merger, including but not limited to
the composition of the Board of Directors, (ii) the issuance, sale and
transfer of the Company's Equity Securities (as defined therein) by the
Company and Hoffmann-La Roche Inc., (iii) the acquisition of additional Equity
Securities and (iv) the registration rights granted by the Company to Roche
Holdings and Hoffmann-La Roche Inc. with respect to the Company's Equity
Securities. A copy of the Stockholder Agreement was included as an exhibit to
the current report on Form 8-K of the Company filed with the Commission on May
12, 1995 in connection with the consummation of the Merger.     
   
  Pursuant to the Stockholder Agreement, the Board of Directors of the Company
will (subject to specified exceptions) be comprised of seven members,
consisting of three designees of Roche Holdings (the "Roche Directors") and
four Independent Directors (as defined therein) nominated by the Nominating
Committee of the Board of Directors.     
 
  The Stockholder Agreement also provides that, among other things, certain
actions by the Company will require approval by a majority of the Roche
Directors and at least one Independent Director (a "Special Majority Vote").
Included in these items is any change in the size or composition of the Board
of Directors or any committee thereof and the establishment of a new committee
of the Board of Directors, and with certain exceptions, the issuance of
securities by the Company.
   
  The Stockholder Agreement also provides that, except under certain
circumstances, which include the issuance of Common Stock pursuant to a public
offering, the Company may not issue any equity securities unless Roche
Holdings is offered the opportunity to purchase an amount of such stock
necessary to maintain their interest.     
   
  Pursuant to the Stockholder Agreement, Roche Holdings and its affiliates
(other than the Company and its subsidiaries) have the right to acquire Equity
Securities (as defined therein) to the extent that, after giving effect
thereto, their Total Voting Power would not exceed 75%. Moreover,
Roche Holdings and its affiliates (other than the Company and its
subsidiaries) may acquire additional Equity Securities notwithstanding the
fact that after giving effect thereto, their Total Voting Power would exceed
75%, if Roche Holdings and its affiliates (other than the Company and its
subsidiaries) or any one of them offers, prior to consummation of such
purchase, to purchase all outstanding Equity Securities and holders of Equity
Securities totaling more than 50% of the outstanding Equity Securities
(excluding Equity Securities held by Roche Holdings and its affiliates (other
than the Company and its subsidiaries)) accept such offer. After the third
anniversary of the Merger, the Stockholder Agreement does not restrict
purchases by Roche Holdings or its affiliates of Equity Securities.     
   
  In addition, the Stockholder Agreement contains a Demand Registration
provision pursuant to which the Company is obligated, upon the request of
Roche Holdings or Roche, to file registration statements with the Commission
covering any shares of Common Stock owned by those parties which are
restricted securities within the meaning of Rule 144(a)(3) of the Securities
Act of 1933, as amended (the "Securities Act"). Roche Holdings and Roche will
also have the right to include such securities in any registration statement
filed by the Company offering securities for its own account or for the
account of any holder other than Mafco or any of its affiliates, subject to
certain reductions if the managing underwriter determines that the size of the
offering or the combination of securities offered would materially interfere
with the offering.     
 
THE SHARING AND CALL OPTION AGREEMENT
   
  In connection with the Merger Agreement, HLR, Mafco, NHCG, and the Company
entered into the Sharing and Call Option Agreement. The Sharing and Call
Option Agreement provides, among other things, that at any time after the
third anniversary of the Merger, Roche Holdings (as the successor to HLR) or
one of its affiliates (other than the Company) may exercise the right, which
right may only be exercised     
 
                                      75
<PAGE>
 
   
once, to purchase all, but not less than all, of the shares of Common Stock
then owned by NHCG, Mafco or any of their controlled affiliates. The Sharing
and Call Option Agreement provides that Roche Holdings or one of its
affiliates will, if it elects to exercise this purchase right, pay a price per
share for the shares to be purchased equal to 102% of the average closing
price per share of such security for the 30 trading days before the date of
such exercise.     
 
  In addition, in accordance with the Sharing and Call Option Agreement, the
Company has filed with the Commission a registration statement on Form S-3
(the "NHGC Registration Statement") which has been declared effective by the
Commission and includes a resale prospectus that permits NHCG (or any of its
pledgees) to sell shares of Common Stock and Warrants received by NHCG in the
Merger without restriction. The Company has agreed to use its best efforts to
prepare and file with the Commission such post-effective amendments to the
NHCG Registration Statement or other filings as may be necessary to keep such
NHCG Registration Statement continuously effective for a period ending on the
third anniversary of the date of the Sharing and Call Option Agreement and
during such period to use its best efforts to cause the resale prospectus to
be supplemented by any required prospectus supplement. The Company has also
agreed to pay the applicable Registration Expenses (as defined therein)
arising from exercise of the registration rights set forth in the Sharing and
Call Option Agreement. A copy of the Sharing and Call Option Agreement was
filed with the Commission by the Company as an exhibit to the Company's
December 31, 1994 Form 10-K.
 
REGISTRATION RIGHTS AGREEMENT
 
  In addition to those registration rights granted to NHCG under the Sharing
and Call Option Agreement, the Company and NHCG also are parties to a
registration rights agreement dated as of April 30, 1991 (the "Registration
Rights Agreement") pursuant to which the Company is obligated, upon the
request of NHCG, to file registration statements ("Demand Registration
Statements") from time to time with the Commission covering the sale of any
shares of Common Stock owned by NHCG upon the completion of certain public
offerings by the Company of shares of Common Stock in 1991. Such Demand
Registration Statements may also cover the resale from time to time of any
shares of Common Stock that NHCG may purchase in the open market at a time
when it is deemed to be an affiliate (as such term is defined under Rule 144
under the Securities Act of 1933, as amended), and certain securities issued
in connection with a combination of shares, recapitalization,
reclassification, merger or consolidation, or other pro rata distribution.
NHCG will also have the right to include such Common Stock and other
securities in any registration statement filed by the Company for the
underwritten public offering of shares of Common Stock (whether or not for the
Company's account), subject to certain reductions in the amount of such Common
Stock and securities if the managing underwriters of such offering determine
that the inclusion thereof would materially interfere with the offering. The
Company agreed not to effect any public or private sale, distribution or
purchase of any of its securities which are the same as or similar to the
securities covered by any Demand Registration Statement during the 15-day
period prior to, and during the 45-day period beginning on, the closing date
of each underwritten offering under such registration statement and NHCG
agreed to a similar restriction with respect to underwritten offerings by the
Company. NHCG's rights under the Registration Rights Agreement are
transferable as provided therein.
 
  Until the third anniversary of the Sharing and Call Option Agreement, when
the Company's obligation to keep the NHCG Registration Statement effective
expires, the registration rights granted to NHCG pursuant to the Registration
Rights Agreement are substantially duplicative of those granted pursuant to
the Sharing and Call Option Agreement. After such date and only to the extent
that NHCG still holds shares of Common Stock or Warrants that it held as of or
received in the Merger, NHCG will continue to be entitled to the registration
rights described in the preceding paragraph, unless the Rights Agreement has
been otherwise amended or terminated.
 
TAX ALLOCATION ARRANGEMENT
 
  Until May 7, 1991, the Company was included in the consolidated federal
income tax returns, and in certain state income tax returns, of Mafco, M&F
Holdings, Revlon Group and Revlon. As a result of the reduction of M&F
Holdings' indirect ownership interest in the Company on May 7, 1991, the
Company is
 
                                      76
<PAGE>
 
no longer a member of the Mafco consolidated tax group. For periods subsequent
to May 7, 1991, the Company files its own separate Federal, state and local
income tax returns. Nevertheless, the Company will remain obligated to pay to
M&F Holdings (or other members of the consolidated group of which M&F Holdings
is a member) any income taxes the Company would have had to pay (in excess of
those which it has already paid) if it had filed separate income tax returns
for taxable periods beginning on or after January 1, 1985 (but computed
without regard to (i) the effect of timing differences (i.e., the liability or
benefit that otherwise could be deferred will be, instead, includible in the
determination of current taxable income) and (ii) any gain recognized on the
sale of any asset not in the ordinary course of business). In addition,
despite the reduction of M&F Holdings' indirect ownership of the Company, the
Company will continue to be subject under existing federal regulations to
several liability for the consolidated federal income taxes for any
consolidated return year in which it was a member of any consolidated group of
which Mafco, M&F Holdings, Revlon Group or Revlon was the common parent.
However, Mafco, M&F Holdings, Revlon Group and Revlon have agreed to indemnify
the Company for any federal income tax liability (or any similar state or
local income tax liability) of Mafco, M&F Holdings, Revlon Group, Revlon or
any of their subsidiaries (other than that which is attributable to the
Company or any of its subsidiaries) that the Company would be required to pay.
 
OTHER TRANSACTIONS WITH ROCHE
 
  In December 1996, the Company received a loan from Roche Holdings of $187.0
million to fund the Settlement Payment in the form of a promissory note which
bears interest at 6.625% per annum. In March 1997, the original maturity of
March 31, 1997 of such note was extended to March 31, 1998. Such note will be
repaid with a portion of the proceeds from the Rights Offering.
   
  The Company has certain ongoing arrangements with Roche for the purchase by
the Company of certain products and the licensing by the Company from Roche of
certain diagnostics technologies, with an aggregate value of approximately
$18.7 million in 1996. The Company provides certain diagnostic testing and
support services to Roche in connection with Roche's clinical pharmaceutical
trials, with an aggregate value of approximately $2.4 million in 1996. In
addition, in connection with the Merger, the Company and Roche entered into a
transition services agreement for the provision by Roche to the Company of
certain payroll and other corporate services for a limited transition period
following the Merger. These services were charged to the Company based on the
time involved and the Roche personnel providing the service. The Company paid
Roche a total of approximately $267,000 in 1996 for these services. Each of
these arrangements was entered into in the ordinary course of business, on an
arm's-length basis and on terms which the Company believes are no less
favorable to it than those obtainable from unaffiliated third parties.     
   
  Roche Holdings has indicated that it intends to exercise its Basic
Subscription Privilege and Oversubscription Privilege in the Rights Offering
in full for Series B PIK Preferred Stock (subject, in the case of the
Oversubscription Privilege, to reduction in certain circumstances). As a
result, if no other Rights are exercised, Roche Holdings will purchase
10,000,000 shares of Series B PIK Preferred Stock.     
   
REGISTRATION RIGHTS     
   
  In connection with the Rights Offering, the Company will grant to each
Rights Holder (including Roche Holdings) who upon consummation of the Rights
Offering beneficially owns Preferred Stock convertible into 10% or more of the
Common Stock outstanding, and who certifies as such, registration rights with
respect to such Common Stock on the same terms as those granted to Roche
Holdings pursuant to the Stockholder Agreement.     
   
CERTAIN TRANSACTIONS WITH AUTOCYTE, INC.     
   
  The Company has certain on-going arrangements with AutoCyte for the purchase
by the Company of certain products with an aggregate value of approximately
$2.2 million in 1996.     
 
                                      77
<PAGE>
 
                  DESCRIPTION OF THE AMENDED CREDIT AGREEMENT
   
  The Amended Credit Agreement will become effective upon consummation of the
Rights Offering subject to satisfaction of certain conditions precedent
referred to below. A copy of the Amended Credit Agreement has been filed as an
exhibit to the Registration Statement of which this Prospectus is a part. The
following summaries of certain provisions of the Amended Credit Agreement do
not purport to be complete and where reference is made to particular
provisions of the Amended Credit Agreement such provisions, including
definitions of certain terms, are incorporated by reference as a part of such
summaries or terms, which are qualified in their entirety by such reference.
    
  Following consummation of the Rights Offering and the receipt of $500
million in gross proceeds, the Amended Credit Agreement makes available to the
Company the Amended Term Loan Facility of $643.8 million and the Amended
Revolving Credit Facility of $450.0 million. Following the Rights Offering,
the Company estimates that availability under the Amended Credit Agreement
will be approximately $327.0 million. Such availability will be conditioned on
certain customary conditions contained in the Amended Credit Agreement.
 
FACILITIES AND MATURITY DATES
 
  As in the Existing Credit Agreement, the senior unsecured credit facilities
under the Amended Credit Agreement are composed of the Amended Term Loan
Facility and the Amended Revolving Credit Facility. The Amended Revolving
Credit Facility includes a $50 million letter of credit sublimit. The Amended
Credit Agreement extends maturity dates by approximately three years for the
Amended Term Loan Facility to March 31, 2004 and approximately two years for
the Amended Revolving Credit Facility to March 31, 2002.
 
INTEREST MARGINS AND FACILITY FEE
   
  As in the Existing Credit Agreement, both the Amended Term Loan Facility and
the Amended Revolving Credit Facility bear interest, at the option of the
Company, at (i) the base rate plus the applicable base rate margin or (ii) the
eurodollar rate plus the applicable eurodollar rate margin. The Amended Credit
Agreement provides that in the event of a reduction of the percentage of
Common Stock held by Roche Holdings and its affiliates (other than the Company
and its subsidiaries) below 25%, the applicable interest margins and facility
fees on borrowings outstanding under the Amended Credit Agreement will
increase. The amount of the increase will depend, in part, on the leverage
ratio of the Company at the time of such reduction. In addition, pursuant to
the Amended Credit Agreement, the applicable interest margins on borrowings
outstanding thereunder are based upon the leverage ratio.     
 
AMENDMENT FEES
 
  The Company will pay each lender an amendment fee based on the sum of its
revolving credit commitments and term loans.
 
LETTER OF CREDIT ISSUERS, FRONTING FEE AND LETTER OF CREDIT FEE
 
  Any lender that is party to the Amended Credit Agreement may serve as a
letter of credit issuer under the Amended Credit Agreement, as agreed between
the Company and such lender. The fronting fee payable to each letter of credit
issuer will be as negotiated between the Company and such issuer, but will not
exceed 0.125% per annum of the outstanding amount of such issuer's letter of
credit. Each lender will be deemed to have purchased a participating interest
in each letter of credit, and in addition to the fronting fee the Company will
pay a letters of credit fee for the account of all the lenders equal to the
applicable Amended Revolving Credit Facility Eurodollar Rate Margin minus
0.125% per annum.
 
                                      78
<PAGE>
 
TERM FACILITY AMORTIZATION
 
  Total amortization of the Amended Term Loan Facility for each twelve-month
period following consummation of the Rights Offering will be reduced
significantly for the first three years, and will be made (in quarterly
installments) in accordance with the following table:
 
<TABLE>
<CAPTION>
      Year                                                            Amount
      ----                                                         -------------
                                                                   (in millions)
      <S>                                                          <C>
      1997........................................................    $    0
      1998........................................................    $    0
      1999........................................................    $ 46.4
      2000........................................................    $ 92.8
      2001........................................................    $139.2
      2002........................................................    $139.2
      2003........................................................    $139.2
      3/31/2004...................................................    $ 87.0
</TABLE>
 
MANDATORY AND OPTIONAL PREPAYMENTS AND COMMITMENT REDUCTIONS
 
  As in the Existing Credit Agreement, the amounts available under the Amended
Revolving Credit Facility are subject to certain mandatory permanent reduction
and prepayment requirements and the Amended Term Loan Facility is subject to
specified mandatory prepayment requirements. In the Amended Credit Agreement,
required amounts will first be applied to repay scheduled Amended Term Loan
Facility payments until the Amended Term Loan Facility is repaid in full and
then to reduce the commitments and advances under the Amended Revolving Credit
Facility. Required payments and reductions will include (i) the proceeds of
debt issuances, subject to certain exceptions; (ii) the proceeds of certain
asset sales, unless reinvested within one year of the applicable asset sale in
productive assets of a kind then used or usable in the business of the Company
and its subsidiaries; (iii) the proceeds of sales of equity securities in
excess of certain amounts; and (iv) under certain circumstances, a percentage
of excess cash flow, as calculated annually.
 
REPRESENTATIONS AND WARRANTIES
 
  The Amended Credit Agreement contains representations and warranties
substantially similar to those set forth in the Existing Credit Agreement.
 
CONDITIONS PRECEDENT
 
  Conditions precedent to effectiveness of the Amended Credit Agreement
include, without limitation, receipt of appropriate certificates and legal
opinions, accuracy in all material respects of representations and warranties,
including absence of material adverse change in the Company and its
subsidiaries (taken as a whole) since December 31, 1996, absence of defaults,
evidence of authority, and payment of transaction fees.
 
COVENANTS
 
  The Amended Credit Agreement contains customary covenants similar to, and in
the case of limitations on acquisitions and incurrence of additional debt more
restrictive than, the covenants set forth in the Existing Credit Agreement.
 
FINANCIAL COVENANTS
 
  Like the Existing Credit Agreement, the Amended Credit Agreement contains
financial covenants with respect to a leverage ratio, an interest coverage
ratio and minimum stockholders' equity. The covenant levels are less
restrictive than under the Existing Credit Agreement, and will be tested
quarterly.
 
EVENTS OF DEFAULT
 
  The Amended Credit Agreement contains events of default substantially
similar to those set forth in the Existing Credit Agreement.
 
                                      79
<PAGE>
 
                        DESCRIPTION OF RIGHTS OFFERING
 
THE RIGHTS
   
  The Company is hereby issuing transferable Rights at no cost to each
Recordholder of Common Stock as of the close of business on the Record Date of
    , 1997. The Company will issue     of a Right for each share of Common
Stock held on the Record Date. The Rights will be evidenced by transferable
Rights Certificates, which are being distributed to each Recordholder
contemporaneously with the delivery of this Prospectus. The Rights permit the
holder thereof to purchase an equal amount of either Series A Exchangeable
Preferred Stock or Series B PIK Preferred Stock. Except as to payment of
dividends, conversion and exchangeability as described in "Description of
Preferred Stock," the terms of the Series A Exchangeable Preferred Stock and
the Series B PIK Preferred Stock are identical in all respects.     
 
  No fractional Rights or cash in lieu thereof will be issued or paid.
Instead, the number of Rights issued to a Recordholder will be rounded to the
nearest whole number, with such adjustments as may be necessary to ensure that
no more than 10,000,000 shares of Preferred Stock are issued hereunder.
 
  Because the number of Rights issued to each Recordholder will be rounded to
the nearest whole number, with such adjustments as may be necessary to ensure
that no more than 10,000,000 shares of Preferred Stock are issued hereunder,
beneficial owners of Common Stock who are also Recordholders of their shares
may receive more Rights under certain circumstances than beneficial owners of
Common Stock who are not Recordholders of their shares. Beneficial owners of
Common Stock who are not Recordholders may obtain a separate Rights
Certificate upon request to the nominee Recordholder. See "Method of
Subscription--Exercise of Rights."
 
  Once the Rights are distributed and until the Expiration Date, the Company
will not effect a reclassification of the Company's equity securities which
could have the effect of materially altering the value of the Rights.
 
EXPIRATION DATE
 
  The Rights will expire at 5:00 p.m., New York time, on     , 1997 subject to
extension in the sole discretion of the Company for up to 30 additional days.
The Company does not currently contemplate any extensions. After the
Expiration Date, unexercised Rights will be null and void. The Company will
not be obligated to honor any purported exercise of Rights received by the
American Stock Transfer & Trust Company (the "Subscription and Information
Agent") or any transfer of Rights into the Subscription and Information
Agent's Account at the Depository Trust Company ("DTC") after the Expiration
Date, regardless of when the documents relating to that exercise were sent,
except pursuant to the Guaranteed Delivery Procedures described below. The
Company may extend the Expiration Date by giving oral or written notice to the
Subscription and Information Agent on or before the Expiration Date, followed
by a press release no later than 9:00 a.m. New York time on the next business
day after the previously scheduled Expiration Date. The Rights Offering will
not be extended to a time later than 5:00 p.m., New York time, on     , 1997.
 
SUBSCRIPTION PRIVILEGES
 
  Basic Subscription Privilege. Each Right will entitle the holder thereof to
purchase at the Subscription Price one Underlying Share. Upon exercise of
Rights, Rights Holders must indicate on their Rights Certificate whether they
wish to receive either shares of Series A Exchangeable Preferred Stock or
shares of Series B PIK Preferred Stock. A failure to so indicate on the Rights
Certificate will result in issuance of Series A Exchangeable Preferred Stock.
Each Rights Holder is entitled to subscribe for all, or any portion of, the
Underlying Shares which may be acquired through the exercise of Rights held by
it;
 
                                      80
<PAGE>
 
provided, that all of the Underlying Shares purchased must be either Series A
Exchangeable Preferred Stock or Series B PIK Preferred Stock. Payment of the
Subscription Price will be held in a segregated account to be maintained by
the Subscription and Information Agent and will be applied to the purchase of
Preferred Stock. The certificates representing Underlying Shares purchased
pursuant to the Basic Subscription Privilege will be delivered to subscribers
as soon as practicable after the Expiration Date.
 
  Oversubscription Privilege. Subject to availability and proration as
described below, Rights Holders who fully exercise the Basic Subscription
Privilege will be eligible to subscribe, at the Subscription Price, for
additional shares of the same series of Preferred Stock purchased pursuant to
such Rights Holder's Basic Subscription Privilege available after satisfaction
of all subscriptions pursuant to the Basic Subscription Privilege. This
Oversubscription Privilege must be exercised at the same time as the Basic
Subscription Privilege is exercised.
   
  Shares of Preferred Stock will be available for purchase pursuant to the
Oversubscription Privilege only to the extent that any Underlying Shares are
not subscribed for through exercise of the Basic Subscription Privilege. The
Excess Shares will be allocated pro rata (subject to the elimination of
fractional shares) among the Rights Holders who exercise their
Oversubscription Privilege in proportion to the respective number of shares of
Preferred Stock each such Rights Holder subscribes for pursuant to the Basic
Subscription Privilege; provided, however, that if such pro rata allocation
results in any Rights Holder being allocated a greater number of Excess Shares
than such holder subscribed for pursuant to the exercise of the
Oversubscription Privilege, then each Rights Holder will be allocated only
that number of Excess Shares for which such holder oversubscribed, and the
remaining Excess Shares will be allocated among all other Rights Holders
exercising the Oversubscription Privilege on the same pro rata basis outlined
above; such proration will be repeated until all Excess Shares have been
allocated to the full extent of the Oversubscription Privilege exercised;
provided further, however, that Roche Holdings will not be allocated any
Excess Shares until all other Rights Holders exercising the Oversubscription
Privilege have been allocated the number of Excess Shares for which they
oversubscribed. Payment for oversubscription will be deposited upon receipt by
the Subscription and Information Agent and held in a segregated account with
the Subscription and Information Agent pending a final determination of the
number of Underlying Shares to be issued pursuant to such Oversubscription
Privilege. THEREFORE, RIGHTS HOLDERS WHO PLACE OVERSUBSCRIPTION ORDERS PRIOR
TO THE EXPIRATION DATE WILL LOSE ACCESS TO FUNDS TENDERED FOR AN INDETERMINATE
PERIOD OF TIME UP TO TEN DAYS AFTER THE EXPIRATION DATE AND MAY NOT ACTUALLY
ACQUIRE SHARES OF PREFERRED STOCK SUBSCRIBED FOR. If a proration of the Excess
Shares results in a Rights Holder receiving fewer Excess Shares than such
Rights Holder subscribed for pursuant to the Oversubscription Privilege, then
the excess funds paid by that holder at the Subscription Price for shares not
issued will be returned without interest or deduction. Certificates
representing Underlying Shares purchased pursuant to the Oversubscription
Privilege, together with certificates representing Underlying Shares purchased
pursuant to the Basic Subscription Privilege, will be delivered to subscribers
as soon as practicable after the Expiration Date.     
 
SUBSCRIPTION PRICE
 
  The Subscription Price is $50 per Underlying Share subscribed for pursuant
to the Basic Subscription Privilege and the Oversubscription Privilege.
 
NO BOARD OR FINANCIAL ADVISOR RECOMMENDATION
 
  An investment in the Preferred Stock must be made pursuant to each
investor's evaluation of such investor's best interests. Accordingly, neither
the Board of Directors of the Company nor Credit Suisse First Boston, as
financial advisor to the Company, makes any recommendation to Rights Holders
regarding whether they should exercise their Rights to subscribe for shares of
Preferred Stock.
 
                                      81
<PAGE>
 
METHOD OF SUBSCRIPTION--EXERCISE OF RIGHTS
 
  Rights Holders may exercise their Rights by delivering to the Subscription
and Information Agent, at the addresses specified below, at or prior to the
Expiration Date, the properly completed and executed Rights Certificate(s)
evidencing those Rights, with any signatures guaranteed as required, together
with payment in full of the Subscription Price for each Underlying Share
subscribed for pursuant to the Basic Subscription Privilege and the
Oversubscription Privilege. Payment may be made only (i) by check or bank
draft drawn upon a U.S. bank, or postal, telegraphic or express money order,
payable to the Subscription and Information Agent; or (ii) by wire transfer of
funds to the escrow account maintained by the Subscription and Information
Agent for the purpose of accepting subscriptions (the "Subscription Account").
In the case of Rights that are held of record through DTC, exercises of the
Basic Subscription Privilege and Oversubscription Privilege may be effected by
instructing DTC to transfer Rights from the DTC account of such holder to the
DTC account of the Subscription and Information Agent, together with
certification as to the aggregate number of Rights exercised and the number of
shares of Preferred Stock thereby subscribed for pursuant to the Basic
Subscription Privilege and the Oversubscription Privilege by each beneficial
owner of Rights on whose behalf such nominee Recordholder is acting, and
payment of the Subscription Price for each share of Preferred Stock subscribed
for pursuant to the Subscription Privilege. Requests for information by Rights
Holders, including with respect to payment by wire transfer to the
Subscription Account, should be directed to the Subscription and Information
Agent at (800) 937-5449 or (718) 921-8200. The Subscription Price will be
deemed to have been received by the Subscription and Information Agent only
upon (i) clearance of any uncertified check; (ii) receipt by the Subscription
and Information Agent of any certified check or bank draft drawn upon a U.S.
bank or any postal, telegraphic or express money order; or (iii) receipt of
collected funds in the Subscription Account. Funds paid by uncertified
personal check may take up to five business days to clear. Accordingly, Rights
Holders who wish to pay the Subscription Price by means of an uncertified
personal check are urged to make payment sufficiently in advance of the
Expiration Date to ensure that such payment is received and clears by such
time and are urged to consider, in the alternative, payment by means of
certified check, bank draft, money order or wire transfer. All funds received
in payment of the Subscription Price shall be held by the Subscription and
Information Agent and invested at the direction of the Company in short-term
certificates of deposit, short-term obligations of the United States or any
state or any agency thereof or money market mutual funds investing in the
foregoing instruments. The account in which such funds will be held will not
be insured by the FDIC. Any interest earned on such funds will be retained by
the Company.
 
  The Rights Certificates and payment of the Subscription Price or, if
applicable, Notices of Guaranteed Delivery, as defined below, must be
delivered to the Subscription and Information Agent by one of the methods
described below.
 
  (1) BY FIRST CLASS MAIL; EXPRESS MAIL OR OVERNIGHT COURIER; AND BY HAND:
 
    American Stock Transfer & Trust Company
    40 Wall Street
    New York, New York 10005
 
  (2) BY FACSIMILE:
 
    FOR NOTICE OF GUARANTEED DELIVERY ONLY
 
    (718) 234-5001
 
  Delivery to an address or facsimile other than those above does not
constitute valid delivery.
 
  The Company will pay the fees and expenses of the Subscription and
Information Agent and has also agreed to indemnify the Subscription and
Information Agent from certain liabilities which it may incur in connection
with the Rights Offering. All commissions, fees and other expenses (including
brokerage commissions and transfer taxes) incurred in connection with the
purchase, sale or exercise of Rights will
 
                                      82
<PAGE>
 
be for the account of the transferor of the Rights, and none of such
commissions, fees or expenses will be paid by the Company or the Subscription
and Information Agent.
 
  If a Rights Holder wishes to exercise Rights, but time will not permit such
Rights Holder to cause the Rights Certificate(s) evidencing those Rights to
reach the Subscription and Information Agent prior to the Expiration Date,
such Rights may nevertheless be exercised if all of the following conditions
(the "Guaranteed Delivery Procedures") are met:
 
    (i) the Rights Holder has caused payment in full of the Subscription
  Price for each Underlying Share being subscribed for pursuant to the Basic
  Subscription Privilege and, if applicable, the Oversubscription Privilege
  to be received (in the manner set forth above) by the Subscription and
  Information Agent at or prior to the Expiration Date;
 
    (ii) the Subscription and Information Agent receives, on or prior to the
  Expiration Date, a guarantee notice (a "Notice of Guaranteed Delivery"),
  guaranteed by a member firm of a registered national securities exchange or
  a member of the National Association of Securities Dealers, Inc., or from a
  commercial bank or trust company having an office or correspondent in the
  United States, giving the name of the exercising Rights Holder, the number
  of Underlying Shares being subscribed for pursuant to the Basic
  Subscription Privilege and, if any, pursuant to the Oversubscription
  Privilege and guaranteeing the delivery to the Subscription and Information
  Agent of the Rights Certificate(s) evidencing those Rights within two (2)
  business days following the date of the Notice of Guaranteed Delivery; and
 
    (iii) the properly completed Rights Certificate(s) evidencing the Rights
  being exercised, with any signatures guaranteed as required, is received by
  the Subscription and Information Agent or such Rights are transferred to
  the DTC account of the Subscription and Information Agent within two (2)
  business days following the date of the Notice of Guaranteed Delivery
  relating thereto. The Notice of Guaranteed Delivery may be delivered to the
  Subscription and Information Agent in the same manner as Rights
  Certificates at the address set forth above or may be delivered to the
  Subscription and Information Agent by telegram or facsimile transmission.
  Additional copies of the form of Notice of Guaranteed Delivery are
  available upon request from the Subscription and Information Agent at the
  address and telephone number set forth below.
 
  If an exercising Rights Holder does not indicate the number of Rights being
exercised, or does not forward full payment of the aggregate Subscription
Price for the number of Rights that the Rights Holder indicates are being
exercised, then the Rights Holder will be deemed to have exercised the Basic
Subscription Privilege with respect to the maximum number of Rights that may
be exercised for the aggregate payment delivered by the Rights Holder and, to
the extent that the aggregate payment delivered by a Rights Holder exceeds the
product of the Subscription Price multiplied by the number of Rights evidenced
by the Rights Certificates delivered by a Rights Holder (such excess being the
"Subscription Excess"), the Rights Holder will be deemed to have exercised the
Oversubscription Privilege to purchase, to the extent available, that number
of whole Excess Shares equal to the quotient obtained by dividing the
Subscription Excess by the Subscription Price. Any amount remaining after
application of the foregoing procedures shall be returned to the Rights Holder
promptly by mail without interest or deduction.
 
  Certificates for shares of Preferred Stock issued pursuant to the exercise
of Rights will be registered in the name of the Rights Holder exercising such
Rights. There can be no assurance that the value of the Preferred Stock will
not decline below the Subscription Price before such shares of Preferred Stock
are delivered.
 
  A Rights Holder who subscribes for fewer than all of the shares represented
by its Right Certificates may, under certain circumstances, receive from the
Subscription and Information Agent a new Rights Certificate representing the
remaining Rights. See "--Partial Exercise Procedures."
 
                                      83
<PAGE>
 
  Recordholders who hold shares of Common Stock for the account of others,
such as brokers, trustees or depositories for securities, should contact the
respective beneficial owners of such shares as soon as possible to ascertain
these beneficial owners' intentions and to obtain instructions with respect to
their Rights. If a beneficial owner so instructs, the Recordholders of that
beneficial owner's Rights should complete appropriate Rights Certificates and
submit them to the Subscription and Information Agent with the proper payment.
In addition, beneficial owners of Rights through such a nominee holder should
contact the nominee holder and request the nominee holder to effect
transactions in accordance with the beneficial owners' instructions. If a
beneficial owner wishes to obtain a separate Rights Certificate he, she or it
should contact the nominee as soon as possible and request that a separate
Rights Certificate be issued. A nominee may request any Rights Certificate
held by it to be split into such smaller denominations as it wishes, provided
that the Rights Certificate is received by the Subscription and Information
Agent, properly endorsed, no later than 5:00 p.m., New York time, on    ,
1997.
 
  The instructions as to use of Laboratory Corporation of America Holdings
Rights Certificates (the "Instructions") accompanying the Rights Certificates
should be read carefully and followed in detail. RIGHTS CERTIFICATES SHOULD BE
SENT WITH PAYMENT TO THE SUBSCRIPTION AND INFORMATION AGENT. DO NOT SEND
RIGHTS CERTIFICATES OR PAYMENTS TO THE COMPANY.
 
  THE METHOD OF DELIVERY OF RIGHTS CERTIFICATES AND PAYMENT OF THE
SUBSCRIPTION PRICE TO THE SUBSCRIPTION AND INFORMATION AGENT WILL BE AT THE
ELECTION AND RISK OF THE RIGHTS HOLDERS. IF RIGHTS CERTIFICATES AND PAYMENTS
ARE SENT BY MAIL, RIGHTS HOLDERS ARE URGED TO SEND SUCH MATERIALS BY
REGISTERED MAIL, PROPERLY INSURED, WITH RETURN RECEIPT REQUESTED, AND ARE
URGED TO ALLOW A SUFFICIENT NUMBER OF DAYS TO ENSURE DELIVERY TO THE
SUBSCRIPTION AND INFORMATION AGENT AND CLEARANCE OF PAYMENT PRIOR TO THE
EXPIRATION DATE. BECAUSE UNCERTIFIED CHECKS MAY TAKE AT LEAST FIVE BUSINESS
DAYS TO CLEAR, RIGHTS HOLDERS ARE STRONGLY URGED TO PAY, OR ARRANGE FOR
PAYMENT, BY MEANS OF CERTIFIED CHECK, BANK DRAFT, MONEY ORDER OR WIRE
TRANSFER.
 
  Certain directors and officers of the Company will assist the Company in the
Rights Offering by, among other things, participating in informational
meetings regarding the Rights Offering, generally being available to answer
questions of potential subscribers and soliciting orders in the Rights
Offering. None of such directors and officers will receive additional
compensation for such services. None of such directors and officers are
registered as securities brokers or dealers under the Federal or applicable
state securities laws, nor are any of such persons affiliated with any broker
or dealer. Because none of such persons are in the business of either
effecting securities transactions for others or buying and selling securities
for their own account, they are not required to register as brokers or dealers
under the Federal securities laws. In addition, the proposed activities of
such directors and officers are exempted from registration pursuant to a
specific safe-harbor provision under Rule 3a4-1 under the Exchange Act.
Substantially similar exemptions from registration are available under
applicable state securities laws.
 
  All questions concerning the timeliness, validity, form and eligibility of
any exercise of Rights will be determined by the Company, whose determination
will be final and binding. The Company, in its sole discretion, may waive any
defect or irregularity, or permit a defect or irregularity to be corrected
within such time as it may determine. Rights Certificates will not be deemed
to have been received or accepted until all irregularities have been waived or
cured within such time as the Company determines, in its sole discretion.
Neither the Subscription and Information Agent nor the Company will be under
any duty to give notification of any defect or irregularity in connection with
the submission of Rights Certificates or incur any liability for failure to
give such notification. The Company reserves the right to reject any exercise
if such exercise is not in accordance with the terms of the Rights Offering or
not in proper form or if the acceptance thereof or the issuance of the
Preferred Stock pursuant thereto could be deemed unlawful.
 
                                      84
<PAGE>
 
  Any questions or requests for assistance concerning the method of
subscribing for shares of Preferred Stock or for additional copies of this
Prospectus, the Instructions or the Notice of Guaranteed Delivery may be
directed to the Subscription and Information Agent at the address and
telephone number below:
 
    American Stock Transfer & Trust Company
    40 Wall Street
    New York, New York 10005
    (800) 937-5449
    (718) 921-8200
 
PARTIAL EXERCISE PROCEDURES
   
  A new Rights Certificate will be issued to a submitting Rights Holder or
transferred according to the Rights Holder's instructions upon the partial
exercise of Rights only if the Subscription and Information Agent receives a
properly endorsed Rights Certificate no later than the fourth business day
prior to the Expiration Date. After such time and date no new Rights
Certificates will be issued. Accordingly, after such time and date a Rights
Holder exercising less than all of its Rights will lose the power to exercise
its remaining Rights. A new Rights Certificate will be sent by first class
mail to the submitting Rights Holder if the Subscription and Information Agent
receives the properly completed Rights Certificate by 5:00 p.m. New York time,
on    , 1997. Unless the submitting Rights Holder makes other arrangements
with the Subscription and Information Agent, a new Rights Certificate received
by the Subscription and Information Agent after 5:00 p.m. New York time, on
   , 1997 will be held for pickup by the submitting Rights Holder at the
Subscription and Information Agent's hand delivery address provided above. All
deliveries of newly issued Rights Certificates will be at the risk of the
submitting Rights Holder.     
 
FOREIGN AND CERTAIN OTHER STOCKHOLDERS
 
  Rights Certificates will not be mailed to Recordholders whose addresses are
outside the United States and Canada or who have an APO or FPO address, but
will be held by the Subscription and Information Agent for each Recordholder's
account. To exercise their Rights, such persons must notify the Subscription
and Information Agent at or prior to 5:00 p.m., New York time, on     , 1997.
Such Rights Holder's rights expire at the Expiration Date.
 
SUBSCRIPTION BY PRINCIPAL STOCKHOLDER
   
   Roche Holdings has informed the Company that it intends to exercise its
Basic Subscription Privilege and Oversubscription Privilege in full for the
Series B PIK Preferred Stock (subject, in the case of the Oversubscription
Privilege, to reduction in certain circumstances). As a result, if no other
Rights are exercised, Roche Holdings will purchase 10,000,000 shares of Series
B PIK Preferred Stock.     
 
NO REVOCATION
 
  ONCE A RIGHTS HOLDER HAS PROPERLY EXERCISED THE BASIC SUBSCRIPTION PRIVILEGE
OR THE OVERSUBSCRIPTION PRIVILEGE, SUCH EXERCISE MAY NOT BE REVOKED.
 
DILUTION
 
  Rights Holders may experience dilution of their percentage of equity
ownership interest and voting power in the Company if and when all of the
shares of Preferred Stock are converted into shares of Common Stock in
accordance with their terms if they do not exercise the Basic Subscription
Privilege. Even if the Rights Holders exercise their Basic Subscription
Privilege in full, they may nevertheless still experience dilution in their
voting rights and in their proportional interest in any future net earnings of
the Company if other holders of Rights exercise the Oversubscription Privilege
and such Rights Holders elect not to exercise the Oversubscription Privilege,
if and when all of the shares of Preferred Stock are converted into shares of
Common Stock in accordance with their terms. In addition, Rights Holders who
exercise Rights for Series A Exchangeable Preferred Stock will experience
dilution as dividends on the Series B PIK Preferred Stock are paid in shares
of Series B PIK Preferred Stock.
 
                                      85
<PAGE>
 
                         DESCRIPTION OF CAPITAL STOCK
   
  The authorized capital stock of the Company consists of 220,000,000 shares
of Common Stock, par value $.01 per share, and 10,000,000 shares of preferred
stock, par value $0.10 per share. As of May 1, 1997, 122,935,080 shares of
Common Stock were issued and outstanding. Prior to the Rights Offering, no
shares of preferred stock were issued and outstanding.     
   
  There are currently insufficient shares of Common Stock authorized to permit
conversion of all of the Preferred Stock issued upon the exercise of Rights or
as dividends on the Series B PIK Preferred Stock and insufficient shares of
Preferred Stock authorized to permit the payment of dividends on the Series B
PIK Preferred Stock. In connection with the next annual meeting of
shareholders currently scheduled for     , 1997, the Board of Directors will
propose amending the Company's Certificate of Incorporation to increase (i)
the authorized number of shares of Common Stock to Permit Conversion of the
Preferred Stock and the Notes, if applicable, and (ii) the authorized number
of shares of preferred stock to permit the payment of dividends on the Series
B PIK Preferred Stock. Roche Holdings and the directors and executive officers
of the Company have indicated to the Company that they intend to vote in favor
of such amendment.     
 
COMMON STOCK
   
  Each holder of Common Stock is entitled to one vote for each share held on
all matters to be voted upon by the stockholders. The holders of outstanding
shares of Common Stock, subject to any preferences that may be applicable to
any outstanding series of Preferred Stock, are entitled to receive ratably
such dividends out of assets legally available therefor at such times and in
such amounts as the Board of Directors may from time to time determine. Upon
liquidation or dissolution of the Company, the holders of Common Stock of the
Company will be entitled to share ratably in the assets of the Company legally
available for distribution to shareholders after payment of liabilities and
subject to the prior rights of any holders of preferred stock then
outstanding. Holders of Common Stock generally have no conversion, sinking
fund, redemption, preemptive or subscription rights. However, pursuant to the
Stockholder Agreement, Roche Holdings was granted certain preemptive rights.
See "Certain Relationships and Related Transactions--The Stockholder
Agreement". In addition, the Common Stock does not have cumulative voting
rights. Shares of Common Stock are not liable to further calls or assessments
by the Company and holders of Common Stock are not liable for any liabilities
of the Company.     
 
  The transfer agent and registrar for the Common Stock is American Stock
Transfer & Trust Company.
 
WARRANT AGREEMENT
 
  In connection with the Merger, the Company entered into a warrant agreement
dated April 10, 1995 (the "Warrant Agreement"). Pursuant to the Warrant
Agreement, the Company distributed a dividend consisting of warrants to
purchase an aggregate of approximately 13,826,308 shares of Common Stock to
stockholders of record as of April 21, 1995, including NHCG. In addition,
pursuant to the Merger, on April 28, 1995, Roche purchased from the Company
warrants (the "Roche Warrants") to purchase 8,325,000 shares of Common Stock
for an aggregate purchase price of $51,048,900. The Warrant Agreement provides
that each Warrant may be exercised on the fifth anniversary (the "Warrant
Expiration Date") of issuance to purchase one share of Common Stock at a
purchase price of $22.00 per share (subject to adjustment); $     per share
following the Rights Offering (subject to further adjustment). The Company has
the option, exercisable by notice 60 days prior to the Warrant Expiration
Date, to redeem the Warrants on the Warrant Expiration Date for a cash
redemption price per Warrant equal to the average closing price of the Common
Stock over a specified period prior to the Warrant Expiration Date minus the
exercise price.
 
 
                                      86
<PAGE>
 
PREFERRED STOCK
 
  The Board of Directors is authorized to issue up to an aggregate of
10,000,000 shares of preferred stock in one or more classes or series, and to
fix for each such class or series such voting powers, full or limited, or no
voting powers, and such distinctive designations, preferences and relative,
participating, optional or other special rights and such qualifications,
limitations or restrictions thereof, as shall be stated and expressed in the
resolution or resolutions adopted by the Board of Directors providing for the
issuance of such class or series and as may be permitted by the Delaware
General Corporate Law ("DGCL"), including, without limitation, the authority
to provide that any such class or series may be (i) subject to redemption at
such time or times and at such price or prices; (ii) entitled to receive
dividends (which may be cumulative or non-cumulative) at such rates, on such
conditions, and at such times, and payable in preference to, or in such
relation to, the dividends payable on any other class or classes or any other
series; (iii) entitled to such rights upon the dissolution of, or upon any
distribution of the assets of, the Company; or (iv) convertible into, or
exchangeable for, shares of any other class or classes of stock, or of any
other series of the same or any other class or classes of stock, of the
Company at such price or prices or at such rates of exchange and with such
adjustments; all as may be stated in such resolution or resolutions. See
"Description of Preferred Stock" for a description of the Preferred Stock
being offered hereby.
 
                                      87
<PAGE>
 
                        DESCRIPTION OF PREFERRED STOCK
 
GENERAL
 
  The Preferred Stock consists of the Series A Exchangeable Preferred Stock
and the Series B PIK Preferred Stock, each of which has been authorized as a
new series of preferred stock, which in the aggregate will consist of
10,000,000 shares (plus up to 6,564,000 shares of Series B PIK Preferred Stock
to be issued in the form of dividends). The Company's Certificate of
Incorporation authorizes the Company to issue without any action on the part
of its stockholders, an aggregate of 10,000,000 shares of Preferred Stock, par
value $0.10 per share. When issued in accordance with the terms of the Rights
Offering, the Preferred Stock will be fully paid and nonassessable. The
holders of the Preferred Stock will have no preemptive rights with respect to
any shares of capital stock of the Company or any other securities of the
Company convertible into, or carrying rights or options to purchase, any such
shares. The Preferred Stock will not be subject to any sinking fund. Unless
converted, exchanged or redeemed by the Company prior to     , 2012, on such
date all of the Preferred Stock shall be redeemed by the Company at the
redemption price set forth herein. The following summary description of the
terms of the Preferred Stock does not purport to be complete and is qualified
in its entirety by reference to the Certificate of Designation, Preferences
and Rights for the Series A Exchangeable Preferred Stock (the "Series A
Certificate of Designation") and the Certificate of Designation, Preferences
and Rights for the Series B PIK Preferred Stock (the "Series B Certificate of
Designation" and together with the Series A Certificate of Designation, the
"Certificates of Designation"), copies of which are filed as exhibits to the
Registration Statement of which this Prospectus forms a part. Upon request,
the transfer agent for the Preferred Stock will furnish holders a copy of the
applicable Certificate of Designation.
 
DIVIDENDS AND RANKING
 
  Dividends on Series A Exchangeable Preferred Stock. Holders of shares of
Series A Exchangeable Preferred Stock will be entitled to receive, when, as
and if declared by the Board of Directors of the Company out of funds legally
available for payment, dividends at an annual rate of % of the Liquidation
Preference (as defined) of the Preferred Stock, or $     per share of Series A
Exchangeable Preferred Stock payable in cash quarterly in arrears on    ,    ,
    and     of each year, commencing    , 1997 (with respect to the period
from the date of issuance of such shares of Preferred Stock to such date),
except that if any such date is a Saturday, Sunday or legal holiday then such
dividend will be payable on the next day that is not a Saturday, Sunday or
legal holiday. Dividends will accrue and be cumulative from such date of
issuance and will be payable to holders of record as they appear on the stock
transfer books on such record dates as are fixed by the Board of Directors
(provided that no record date shall be later than (a) the sixth business day
prior to the date fixed for any redemption of the Preferred Stock or, (b) in
the case of the dividend payment date occurring on     , the tenth business
day prior to such date).
   
   Dividends on Series B PIK Preferred Stock. Holders of shares of Series B
PIK Preferred Stock will be entitled to receive, when, as and if declared by
the Board of Directors of the Company out of funds legally available for
payment, if applicable, dividends at an annual rate of     % of the
Liquidation Preference (as defined) of the Preferred Stock, or $   per share
of Series B PIK Preferred Stock, payable in shares of Series B PIK Preferred
Stock until    , 2003 and in cash thereafter, quarterly in arrears on     ,
    ,    and     of each year, commencing    , 1997 (with respect to the
period from the date of issuance of such shares of Preferred Stock to such
date), except that if any such date is a Saturday, Sunday or legal holiday
then such dividend will be payable on the next day that is not a Saturday,
Sunday or legal holiday. Dividends will accrue and be cumulative from such
date of issuance and will be payable to holders of record as they appear on
the stock transfer books on such record dates as are fixed by the Board of
Directors (provided that no record date shall be later than (a) the sixth
business day prior to the date fixed for any redemption of the Preferred Stock
or, (b) in the case of the dividend payment date occurring on     , the tenth
business day prior to such date). No fractional shares of Series B PIK
Preferred Stock will be issued, so that the number of shares to be paid as a
    
                                      88
<PAGE>
 
dividend pursuant to the Series B PIK Preferred Stock shall be rounded to the
nearest whole number of shares. All dividends paid in additional shares of
Series B PIK Preferred Stock shall be deemed issued on the applicable dividend
payment date, and will thereupon be duly authorized, validly issued, fully
paid and nonassessable and free and clear of all liens and charges.
 
  The Preferred Stock will be junior as to dividends to any series or class of
stock hereafter issued that ranks senior as to dividends to the Preferred
Stock, when and if issued ("Senior Dividend Stock"), and if at any time the
Company has failed to pay or declare and set apart for payment accrued and
unpaid dividends on any Senior Dividend Stock, the Company may not pay any
dividend on the Preferred Stock. The Preferred Stock will have priority as to
dividends over the Common Stock and any other series or class of the Company's
stock hereafter issued that ranks junior as to dividends to the Preferred
Stock, when and if issued (collectively, "Junior Dividend Stock"), and no
dividend (other than dividends payable solely in stock that is Junior Dividend
Stock and that ranks junior to the Preferred Stock as to distributions of
assets upon liquidation, dissolution or winding up of the Company, whether
voluntary or involuntary (such stock that is junior as to liquidation rights,
"Junior Liquidation Stock") (the Common Stock and any other capital stock of
the Company that is both Junior Dividend Stock and Junior Liquidation Stock,
"Junior Stock")) may be paid on any Junior Dividend Stock, and no payment may
be made on account of the purchase, redemption, retirement, or other
acquisition of Junior Dividend Stock or Junior Liquidation Stock (other than
such acquisitions pursuant to employee or director incentive or benefit plans
or arrangements, or in exchange solely for Junior Stock), unless all accrued
and unpaid dividends on the Preferred Stock for all dividend payment periods
ending on or before the date of payment of such dividends on Junior Dividend
Stock, or such payment for such Junior Dividend Stock or Junior Liquidation
Stock, as the case may be, have been paid or declared and set apart for
payment. The Company may not pay or declare and set apart for payment
dividends on the Preferred Stock unless it has paid or declared and set apart
for payment or contemporaneously pays or declares and sets apart for payment
accrued and unpaid dividends for all dividend payment periods on any class or
series of stock having parity with the Preferred Stock as to dividends
("Parity Dividend Stock" which, in the case of the Series A Exchangeable
Preferred Stock, will include the Series B PIK Preferred Stock and vice versa)
ratably, so that the amount of dividends declared and paid per share on the
Preferred Stock and such Parity Dividend Stock will bear to each other the
same ratio that the accrued and unpaid dividends to the date of payment on
Preferred Stock and such Parity Dividend Stock bear each other. No payment may
be made on account of the purchase, redemption, retirement or other
acquisition of shares of Parity Dividend Stock or other class or series of the
Company's capital stock ranking on a parity with the Preferred Stock as to
distributions of assets upon liquidation, dissolution or winding up of the
Company, whether voluntary or involuntary (such stock that has parity with the
Preferred Stock as to liquidation rights which, in the case of the Series A
Exchangeable Preferred Stock, will include the Series B PIK Preferred Stock
and vice versa, "Parity Liquidation Stock" and, together with Parity Dividend
Stock, "Parity Stock") (other than such acquisitions pursuant to employee or
director or incentive or benefit plans or arrangements, or in exchange solely
for Junior Stock) unless all accrued and unpaid dividends on the Preferred
Stock for all dividend payment periods ending on or before the date of payment
on account of such acquisition of such Parity Dividend Stock or Parity
Liquidation Stock shall have been paid or declared and set apart for payment.
The respective definitions of Senior Dividend Stock, Senior Liquidation Stock
(as defined herein), Parity Dividend Stock, Parity Liquidation Stock, Junior
Dividend Stock and Junior Liquidation Stock shall also include any warrants,
rights, calls or options, exercisable for or convertible into any of the
Senior Dividend Stock, Senior Liquidation Stock, Parity Dividend Stock, Parity
Liquidation Stock, Junior Dividend Stock and Junior Liquidation Stock, as the
case may be.
 
  The amount of dividends payable per share of Preferred Stock for each
quarterly dividend period will be computed by dividing the annual dividend
amount by four. The amount of dividends payable for the initial period and for
any period shorter than a full quarterly dividend period will be computed on
the basis of a 360-day year of twelve 30-day months. No interest will be
payable in respect of any dividend payment on the Preferred Stock which may be
in arrears.
 
  Under Delaware law, the Company may declare and pay dividends on its capital
stock only out of surplus, as defined in the Delaware General Corporation Law
(the "DGCL") or, if there is no such surplus,
 
                                      89
<PAGE>
 
   
out of its net profits for the fiscal year in which the dividend is declared
and/or the preceding fiscal year. Surplus under the DGCL is generally defined
to mean the excess, at any given time, of the net assets of a corporation over
the amount of the corporation's capital. No dividends or distributions may be
declared, paid or made if the Company is or would be rendered insolvent by
virtue of such dividend or distribution, or if such declaration, payment or
distribution would contravene the certificate of incorporation of the
corporation. The Company is also subject to restrictions on cash dividend
payments pursuant to the terms of the Amended Credit Agreement. In addition,
pursuant to the terms of the Preferred Stock, if dividends on the Series A
Exchangeable Preferred Stock were to be limited pursuant to the Amended Credit
Agreement prior to     , 2003, the Company's ability to pay dividends in kind
on the Series B PIK Preferred Stock would also be limited. See "Dividend
Policy".     
 
LIQUIDATION RIGHTS
 
  In the case of the voluntary or involuntary liquidation, dissolution or
winding up of the Company, holders of shares of Preferred Stock are entitled
to receive the liquidation preference of $50 per share (the "Liquidation
Preference"), plus an amount equal to any accrued and unpaid dividends to the
payment date, before any payment or distribution is made to the holders of
Common Stock or any Junior Liquidation Stock, but the holders of the shares of
the Preferred Stock will not be entitled to receive the liquidation preference
of such shares until the liquidation preference of any other series or class
of stock hereafter issued that ranks senior as to liquidation rights to the
Preferred Stock ("Senior Liquidation Stock") has been paid in full. The
holders of Preferred Stock and Parity Liquidation Stock are entitled to share
ratably, in accordance with the respective preferential amounts payable on
such stock, in any distribution (after payment of the liquidation preference
of the Senior Liquidation Stock) which is not sufficient to pay in full the
aggregate of the amounts payable thereon. After payment in full of the
liquidation preference of the shares of the Preferred Stock, the holders of
such shares will not be entitled to any further participation in any
distribution of assets by the Company. Neither a consolidation nor merger of
the Company with another corporation nor a sale or transfer of all or
substantially all of the Company's property or assets will be considered a
liquidation, dissolution or winding up of the Company.
 
VOTING RIGHTS
 
  The holders of the Preferred Stock will not have voting rights except as
described below or as required by law. In exercising any such vote, each
outstanding share of Preferred Stock will be entitled to one vote, excluding
shares held by any entity controlled by the Company, which shares shall have
no voting rights.
 
  Whenever dividends on the Preferred Stock or any outstanding shares of
Parity Dividend Stock have not been paid in an aggregate amount equal to at
least six quarterly dividends on such shares (whether or not consecutive), the
number of members of the Company's Board of Directors will be increased by
two, and the holders of the Preferred Stock, voting separately as a class with
the holders of Parity Dividend Stock on which like voting rights have been
conferred and are exercisable, will be entitled to elect such two additional
directors who shall continue to serve so long as such dividends remain in
arrears. Such voting rights will terminate when all such dividends accrued and
unpaid have been declared and paid or set apart for payment. The term of
office of all directors so elected will terminate immediately upon the
termination of such voting rights and the number of members of the Board of
Directors will be reduced by two.
   
  In addition, so long as any Preferred Stock is outstanding, the Company will
not, without the affirmative vote or consent of the holders of at least (a) 66
2/3% of all outstanding shares of each series of Preferred Stock and
outstanding Parity Dividend Stock (voting as a single class), (i) amend, alter
or repeal (by merger or otherwise) any provision of the Certificate of
Incorporation, Certificates of Designation or the bylaws of the Company so as
to affect adversely the relative rights, preferences, qualifications,
limitations, or restrictions of the Preferred Stock, (ii) authorize or issue,
or increase the authorized amount of any Senior Dividend Stock, Senior
Liquidation Stock or any security convertible into such Senior Dividend Stock
or such Senior Liquidation Stock or (iii) effect any reclassification of the
Preferred Stock. or (b) a majority of all outstanding shares of each series of
Preferred Stock and outstanding Parity Dividend Stock (voting as a single
class), authorize or issue, or increase the authorized amount of any
additional class of Parity Stock or any security convertible into such Parity
Stock.     
 
                                      90
<PAGE>
 
REDEMPTION
 
  The Preferred Stock may not be redeemed prior to    , 2000. On or after such
date, each series of Preferred Stock may be redeemed by the Company, at its
option, in whole or in part at any time, subject to the limitations, if any,
imposed by applicable law, at a cash redemption price per share, if redeemed
during the 12-month period beginning     of the years indicated below, plus,
in each case, accrued and unpaid dividends thereon to the date of redemption:
 
<TABLE>
<CAPTION>
                                                                      Redemption
                                                                        Price
      Year                                                            Per Share
      ----                                                            ----------
      <S>                                                             <C>
      2000...........................................................       %
      2001...........................................................
      2002...........................................................
      2003...........................................................
      2004...........................................................
      2005...........................................................
      2006 and thereafter............................................    100
</TABLE>
 
  If fewer than all the outstanding shares of a series of Preferred Stock are
to be redeemed, the Company will select those shares to be redeemed pro rata
or by lot or in such other manner as the Board of Directors may determine to
be fair. On     , 2012, all of the outstanding Preferred Stock will be
mandatorily redeemed by the Company at a redemption price of $50 per share. If
at any time dividends on the Preferred Stock are in arrears, the Company may
not redeem less than all of the then outstanding shares of the applicable
series of Preferred Stock until all accrued dividends for all past dividend
periods have been paid in full.
 
  Notice of redemption will be mailed at least 30 days but not more than 60
days before the date fixed for redemption to each holder of record of shares
of the applicable series of Preferred Stock to be redeemed at the address
shown on the stock transfer books. No fractional shares of Preferred Stock
will be issued upon a redemption of less than all of the Preferred Stock, but
in lieu thereof, an appropriate amount will be paid in cash based on the
Closing Price (as defined in the Certificates of Designation) on the date
fixed for redemption. After the date fixed for redemption (unless the Company
defaults on the payment of the redemption price), dividends will cease to
accrue on the shares of Preferred Stock called for redemption and other rights
of the holders of such shares will terminate, except the right to receive the
redemption price without interest.
 
CONVERSION RIGHTS
 
  The holder of any shares of Preferred Stock will have the right at any time
on or after    , 1997 in the case of the Series A Exchangeable Preferred Stock
and on or after    , 2000 in the case of the Series B PIK Preferred Stock, at
the holder's option, to convert any or all shares into Common Stock at the
conversion rate (subject to adjustment as described below) of     shares for
each share of Preferred Stock, equivalent to an initial conversion price of
$    for each share of Common Stock. The conversion rate was determined by the
Company, in consultation with Credit Suisse First Boston. Among the factors
considered by the Board of Directors in determining the conversion rate were
(i) the market value of the Common Stock; (ii) the present and projected
operating results and financial condition of the Company; (iii) an assessment
of the Company's management and management's analysis of the growth potential
of the Company and of the Company's market area; (iv) the aggregate size of
the Rights Offering; and (v) the conversion rate which the Board of Directors
believes investors would readily accept under current economic circumstances.
If the Preferred Stock is called for redemption, the conversion right will
terminate at 5:00 p.m. New York City time on the business day prior to the
date fixed for such redemption and if not exercised prior to such time, such
conversion right will be lost, unless the Company defaults in making the
payment due upon redemption. Except as provided in the next paragraph, no
payment or adjustment will be made upon any conversion of any share of
Preferred Stock or on account of any
 
                                      91
<PAGE>
 
dividends on the Common Stock issued upon conversion (except that if a
converting holder of Preferred Stock is eligible for a dividend on both the
Preferred Stock and the Common Stock issued upon conversion, the holder is
entitled to the higher of such dividend amounts). Following conversion, the
holder will no longer have any right to payment of dividends on the shares
surrendered for conversion. No fractional shares of Common Stock will be
issued upon conversion but, in lieu thereof, an appropriate amount will be
paid in cash based on the Closing Price for the shares of Common Stock on the
day of such conversion.
 
  If the Company, by dividend or otherwise, declares or makes a distribution
on its Common Stock referred to in clause (iv) or (v) of the next following
paragraph, the holders of the Preferred Stock, upon the conversion thereof
subsequent to the close of business on the date fixed for the determination of
shareholders entitled to receive such distribution and prior to the
effectiveness of the conversion price adjustment in respect of such
distribution, will be entitled to receive for each share of Common Stock into
which each such share of Preferred Stock is converted the portion of the
shares of Common Stock, rights, warrants, evidences of indebtedness, shares of
capital stock, cash and assets so distributed applicable to one share of
Common Stock; provided, however, that the Company may, with respect to all
holders so converting, in lieu of distributing any portion of such
distribution not consisting of cash or securities of the Company, pay such
holder cash equal to the fair market value thereof (as determined by the Board
of Directors).
 
  The conversion price will be subject to adjustment in certain events
including, without duplication: (i) dividends (and other distributions)
payable in Common Stock on any class of capital stock of the Company; (ii) the
issuance to all holders of Common Stock of rights or warrants, entitling
holders of such rights or warrants to subscribe for or purchase Common Stock
at less than the then current market price (as defined in the Certificates of
Designation); (iii) subdivisions and combinations of Common Stock; (iv)
distributions to all holders of Common Stock of evidences of indebtedness of
the Company, shares of capital stock, cash or assets (including securities,
but excluding those rights, warrants, dividends and distributions referred to
above and dividends and distributions paid exclusively in cash); and (v)
distributions consisting of cash, excluding (A) cash that is part of a
distribution referred to in (iv) above, and (B) any cash representing an
amount per share of Common Stock of any quarterly cash dividend to the extent
it does not exceed the amount per share of Common Stock of the next preceding
quarterly cash dividend (as adjusted to reflect any of the events referred to
in clauses (i) through (iv) of this sentence) or all of any such quarterly
cash dividends if the amount thereof per share of Common Stock multiplied by
four does not exceed    % of the current market price of Common Stock on the
trading day (as defined in the Certificates of Designation) next preceding the
date of declaration of such dividend. Promptly, following certain adjustments
to the conversion price, notice of such event will be mailed to the holders of
the Preferred Stock.
 
  The foregoing adjustments to the conversion price are designed to compensate
the holders of the Preferred Stock for the value of the cash, securities or
other assets that they would have otherwise received had they converted their
Preferred Stock into shares of Common Stock prior to such distribution. Such
adjustment would generally result in a reduced conversion price, which would
entitle the holders of Preferred Stock to receive a greater number of shares
of Common Stock upon conversion of the Preferred Stock into Common Stock.
 
  The Company from time to time may reduce the conversion price by an amount
for any period of time of at least 20 days, in which case the Company shall
give at least 15 days' notice of such reduction, if the Board of Directors of
the Company has made a determination that such reduction would be in the best
interest of the Company, which determination shall be conclusive.
 
  In the event that the Company is a party to any transaction (including,
without limitation, a merger, consolidation, sale of all or substantially all
of the Company's assets, recapitalization or reclassification of the Common
Stock (each of the foregoing being referred to as a "Company Transaction")),
in each case (except in the case of a Common Stock Fundamental Change (as
defined)) as a result of which shares of
 
                                      92
<PAGE>
 
Common Stock shall be converted into the right to receive securities, cash or
other property, each share of the Preferred Stock shall thereafter be
convertible into the kind and amount of securities, cash and other property
receivable upon the consummation of such Company Transaction by a holder of
that number of shares of Common Stock into which one share of the Preferred
Stock was convertible immediately prior to such Company Transaction (or in the
case of a Common Stock Fundamental Change, common stock of the kind received
by the holders of Common Stock as a result of such Common Stock Fundamental
Change) (but after giving effect to any adjustment discussed in the next
paragraph relating to a Fundamental Change (as defined) if such Company
Transaction constitutes a Fundamental Change, and subject to funds being
legally available for such purpose under applicable law at the time of such
conversion).
 
  Notwithstanding any other provision in the preceding paragraphs to the
contrary, if any Fundamental Change occurs, then the conversion price in
effect will be adjusted immediately after such Fundamental Change as described
below. In addition, in the event of a Common Stock Fundamental Change, each
share of the Preferred Stock shall be convertible solely into common stock of
the kind received by holders of Common Stock as the result of such Common
Stock Fundamental Change. For purposes of calculating any adjustment to be
made pursuant to this paragraph in the event of a Fundamental Change,
immediately after such Fundamental Change:
 
    (i) in the case of a Non-Stock Fundamental Change (as defined), the
  conversion price of the Preferred Stock will thereupon become the lower of
  (A) the conversion price in effect immediately prior to such Non-Stock
  Fundamental Change, but after giving effect to any other prior adjustments,
  and (B) the result obtained by multiplying the greater of the Applicable
  Price (as defined) or the then applicable Reference Market Price (as
  defined) by a fraction of which the numerator will be $50 and the
  denominator will be the then current redemption price per share (or, for
  periods prior to    , 2000, an amount per share determined in accordance
  with the Certificates of Designation); and
 
    (ii) in the case of a Common Stock Fundamental Change, the conversion
  price of the Preferred Stock in effect immediately prior to such Common
  Stock Fundamental Change, but after giving effect to any other prior
  adjustments, will thereupon be adjusted by multiplying such conversion
  price by a fraction, of which the numerator will be the Purchaser Stock
  Price (as defined) and the denominator will be the Applicable Price;
  provided, however, that in the event of a Common Stock Fundamental Change
  in which (A) 100% of the value of the consideration received by a holder of
  Common Stock is common stock of the successor, acquiror or other third
  party (and cash, if any, is paid with respect to any fractional interests
  in such common stock resulting from such Common Stock Fundamental Change)
  and (B) all of the Common Stock will have been exchanged for, converted
  into, or acquired for, common stock (and cash with respect to fractional
  interests) of the successor, acquiror or other third party, the conversion
  price of the Preferred Stock in effect immediately prior to such Common
  Stock Fundamental Change will thereupon be adjusted by dividing such
  conversion price by the number of shares of common stock of the successor,
  acquiror, or other third party received by a holder of one share of Common
  Stock as a result of such Common Stock Fundamental Change.
 
  The foregoing conversion price adjustments in the event of a Non-Stock
Fundamental Change will apply in situations whereby all or substantially all
of the Common Stock is acquired in a transaction in which 50% or less of the
value received by holders of Common Stock consists of common stock that has
been admitted for listing on a national securities exchange or quoted on the
Nasdaq National Market. If the market price of the Common Stock immediately
prior to a Non-Stock Fundamental Change is lower than the applicable
conversion price of the Preferred Stock then in effect, the conversion price
will be adjusted as described in (i) above and the holders of the Preferred
Stock will be entitled to receive the amount and kind of consideration that
would have been received if the Preferred Stock had been converted into Common
Stock prior to the Non-Stock Fundamental Change after giving effect to such
adjustment.
 
  The foregoing conversion price adjustments in the event of a Common Stock
Fundamental Change will apply in situations whereby more than 50% of the value
received by holders of Common Stock consists of common stock of another
company that has been admitted for listing on a national securities exchange
 
                                      93
<PAGE>
 
or quoted on the Nasdaq National Market, in which case the Preferred Stock
will become convertible into shares of common stock of the other company. If
consideration for the Common Stock consists partly of common stock of another
company and partly of other securities, cash or property, each share of
Preferred Stock will be convertible solely into a number of shares of such
common stock determined so that the initial value of such shares (measured as
described in the definition of Purchaser Stock Price below) equals the value
of the shares of Common Stock into which such share of Preferred Stock was
convertible immediately before the transaction (measured as described in the
definition of Applicable Price below). If consideration for Common Stock is
solely common stock of another company, each share of Preferred Stock will be
convertible into the same number of shares of such common stock receivable by
a holder of the number of shares of Common Stock into which such share of
Preferred Stock was convertible immediately before such transaction.
 
  Depending upon whether the Fundamental Change is a Non-Stock Fundamental
Change or Common Stock Fundamental Change, a holder may receive significantly
different consideration upon conversion. In the event of a Non-Stock
Fundamental Change, the holder has the right to convert each share of the
Preferred Stock into the kind and amount of shares of stock and other
securities or property or assets receivable by a holder of the number of
shares of Common Stock issuable upon conversion of such share of the Preferred
Stock immediately prior to such Non-Stock Fundamental Change, but after giving
effect to the adjustment described above. However, in the event of a Common
Stock Fundamental Change in which less than 100% of the value of the
consideration received by a holder of Common Stock is common stock of the
acquiror or other third party, a holder of a share of the Preferred Stock who
converts a share following the Common Stock Fundamental Change will receive
consideration in the form of such common stock only, whereas a holder who has
converted his share prior to the Common Stock Fundamental Change will receive
consideration in the form of common stock as well as any other securities or
assets (which may include cash) receivable thereupon by a holder of the number
of shares of Common Stock issuable upon conversion of such share of Preferred
Stock immediately prior to such Common Stock Fundamental Change.
 
  The term "Applicable Price" means (i) in the event of a Non-Stock
Fundamental Change in which the holders of the Common Stock receive only cash,
the amount of cash received by the holder of one share of Common Stock and
(ii) in the event of any other Non-Stock Fundamental Change or any Common
Stock Fundamental Change, the average of the Closing Prices (as defined) for
the Common Stock during the ten trading days (as defined in the Certificate of
Designation) prior to and including the record date for the determination of
the holders of Common Stock entitled to receive cash, securities, property or
other assets in connection with such Non-Stock Fundamental Change or Common
Stock Fundamental Change, or, if there is no such record date, the date upon
which the holders of the Common Stock shall have the right to receive such
cash, securities, property or other assets, in each case, as adjusted in good
faith by the Board of Directors or the Company to appropriately reflect any of
the events referred to in clauses (i) through (v) of the third paragraph of
this Conversion Rights subsection.
 
  The term "Closing Price" of any common stock means on any day the last
reported sale price regular way on such day or in case no sale takes place on
such day, the average of the reported closing bid and asked prices regular way
in each case on the NYSE or, if the common stock is not quoted on such system,
on the principal national securities exchange or quotation system on which
such stock is listed or admitted to trading or quoted, or, if not listed or
admitted to trading on any national securities exchange or quotation system,
the average of the closing bid and asked prices in the over-the-counter market
on such day, or, if not so available in such manner, as furnished by any NYSE
Member firm selected by the Company for that purpose.
 
  The term "Common Stock Fundamental Change" means any Fundamental Change in
which more than 50% of the value (as determined in good faith by the Board of
Directors of the Company) of the consideration received by holders of Common
Stock consists of common stock that for each of the ten consecutive trading
days referred to in the second preceding paragraph has been admitted for
listing or
 
                                      94
<PAGE>
 
admitted for listing subject to notice of issuance on a national securities
exchange or quoted on the Nasdaq National Market, provided, however, that a
Fundamental Change shall not be a Common Stock Fundamental Change unless
either (i) the Company continues to exist after the occurrence of such
Fundamental Change and the outstanding shares of Preferred Stock continue to
exist as outstanding Preferred Stock, or (ii) not later than the occurrence of
such Fundamental Change, the outstanding shares of Preferred Stock are
converted into or exchanged for shares of preferred stock of a corporation
succeeding to the business of the Company, which preferred stock has powers,
preferences and relative, participating, optional or other rights, and
qualifications, limitations and restrictions, substantially similar to those
of the Preferred Stock.
 
  The term "Fundamental Change" means the occurrence of any transaction or
event in connection with a plan pursuant to which all or substantially all of
the Common Stock shall be exchanged for, converted into, acquired for or
constitute solely the right to receive cash, securities, property or other
assets (whether by means of an exchange offer, liquidation, tender offer,
consolidation, merger, combination, reclassification, recapitalization or
otherwise) provided, in the case of a plan involving more than one such
transaction or event, for purposes of adjustment of the conversion price, such
Fundamental Change shall be deemed to have occurred when substantially all of
the Common Stock of the Company shall be exchanged for, converted into, or
acquired for or constitute solely the right to receive cash, securities,
property or other assets, but the adjustment shall be based upon the highest
weighted average per share consideration which a holder of Common Stock could
have received in such transactions or events as a result of which more than
50% of the Common Stock of the Company shall have been exchanged for,
converted into, or acquired for or constitute solely the right to receive
cash, securities, property or other assets.
 
  The term "Non-Stock Fundamental Change" means any Fundamental Change other
than a Common Stock Fundamental Change.
 
  The term "Purchaser Stock Price" means, with respect to any Common Stock
Fundamental Change, the average of the Closing Prices for the common stock
received in such Common Stock Fundamental Change for the ten consecutive
trading days prior to and including the record date for the determination of
the holders of Common Stock entitled to receive such common stock, or if there
is no such record date, the date upon which the holders of the Common Stock
shall have the right to receive such common stock, in each case, as adjusted
in good faith by the Board of Directors to appropriately reflect any of the
events referred to in clauses (i) through (v) of the third paragraph of this
subsection; provided, however, that if no such Closing Prices exist, the
Purchaser Stock Price shall be set at a price determined in good faith by the
Board of Directors of the Company.
 
  The term "Reference Market Price" shall mean $    (which is an amount equal
to 66 2/3% of the reported last sale price for the Common Stock on the NYSE on
    , 1997) and in the event of any adjustment to the conversion price other
than as a result of a Fundamental Change, the Reference Market Price shall
also be adjusted so that the ratio of the Reference Market Price to the
conversion price after giving effect to any such adjustment shall always be
the same ratio of $    to the initial conversion price specified in the first
sentence of this subsection.
 
  Notwithstanding the foregoing provisions, the issuance of any shares of
Common Stock pursuant to any plan providing for the reinvestment of dividends
or interest payable on securities of the Company and the investment of
additional optional amounts in shares of Common Stock under any such plan, and
the issuance of any shares of Common Stock or options or rights to purchase
such shares pursuant to any employee benefit plan or program of the Company or
pursuant to any option, warrant, right or exercisable, exchangeable or
convertible security outstanding as of the date the Preferred Stock was first
designated shall not be deemed to constitute an issuance of Common Stock or
exercisable, exchangeable or convertible securities by the Company to which
any of the adjustment provisions described above applies. There shall also be
no adjustment of the conversion price in case of the issuance of any stock (or
securities convertible into or exchangeable for stock) of the Company, except
as specifically described above. If any action would require adjustment of the
conversion price pursuant to more than one of the provisions
 
                                      95
<PAGE>
 
described above, only one adjustment shall be made and such adjustment shall
be the amount of adjustment which has the highest absolute value to holders of
the Preferred Stock. No adjustment in the conversion price will be required
unless such adjustment would require an increase or decrease of at least 1% of
the conversion price, but any adjustment that would otherwise be required to
be made shall be carried forward and taken into account in any subsequent
adjustment.
 
EXCHANGE PROVISIONS
 
  The Series A Exchangeable Preferred Stock may be exchanged, in whole but not
in part, at the option of the Company, for Notes on any     ,    ,     or
, on or after    , 2000 (a "Notes Exchange Date") through the issuance of
Notes, in redemption of and in exchange for shares of Series A Exchangeable
Preferred Stock, provided certain conditions described below are met. See
"Description of the Notes." Holders of the Series A Exchangeable Preferred
Stock will be entitled to receive Notes at the rate of $50 principal amount of
Notes for each share of Series A Exchangeable Preferred Stock. The Company
will mail notice of its intention to redeem through such an exchange to each
holder of record of the Series A Exchangeable Preferred Stock not less than 30
nor more than 60 days before the Notes Exchange Date. If notice of exchange
has been given (unless the Company defaults in issuing Notes in redemption of
an exchange for the Series A Exchangeable Preferred Stock or fails to pay or
set aside for payment accrued and unpaid dividends on the Series A
Exchangeable Preferred Stock) on the Notes Exchange Date the holders of the
Series A Exchangeable Preferred Stock will cease to be stockholders with
respect to such shares and will have no interests in or claims against the
Company by virtue thereof (except the right to receive Notes in exchange
therefor and accrued and unpaid dividends on the Series A Exchangeable
Preferred Stock to the Notes Exchange Date) and will have no voting,
conversion or other rights with respect to such shares, and all shares of
Series A Exchangeable Preferred Stock will no longer be outstanding. No shares
of Series A Exchangeable Preferred Stock may be exchanged for Notes unless the
Company has paid or set aside for the benefit of the holders of the Series A
Exchangeable Preferred Stock all accrued and unpaid dividends on the Series A
Exchangeable Preferred Stock to the Notes Exchange Date. The ability of the
Company to exchange Series A Exchangeable Preferred Stock for the Notes is
restricted under the terms of the Amended Credit Agreement. See "Risk
Factors--Substantial Leverage." The ability of the Company to exchange Series
A Exchangeable Preferred Stock for Notes is also subject to certain conditions
contained in the Indenture relating to the Notes and to limitations imposed
under the DGCL and by applicable laws protecting the rights of creditors.
   
REGISTRATION RIGHTS     
   
  In connection with the Rights Offering, the Company will grant to each
Rights Holder (including Roche Holdings) who upon consummation of the Rights
Offering beneficially owns Preferred Stock convertible into 10% or more of the
Common Stock outstanding, and who certifies as such, registration rights with
respect to such Common Stock on the same terms as those granted to Roche
Holdings pursuant to the Stockholder Agreement. See "Certain Relationships and
Related Transactions."     
 
LACK OF ESTABLISHED MARKET FOR THE PREFERRED STOCK
 
  There is currently no public market for the Preferred Stock. While
application has been made to list the Series B PIK Preferred Stock on the
NYSE, it is unlikely that the Series B PIK Preferred Stock will be accepted
for listing as it is expected that following the Rights Offering the Series B
PIK Preferred Stock will be held by fewer than 100 holders. In addition, there
can be no assurance that an active market for the Preferred Stock will develop
or that, if the Preferred Stock is approved for such listing, such listing
will continue while the Preferred Stock is outstanding. Future trading prices
for the Preferred Stock will depend on many factors, including, among others,
the Company's financial results, the market for similar securities and the
volume of trading activity in the Preferred Stock.
 
TRANSFER AGENT
 
  The transfer agent of the Preferred Stock will be American Stock Transfer &
Trust Company.
 
                                      96
<PAGE>
 
                           DESCRIPTION OF THE NOTES
   
  If the Company elects to issue Notes in exchange for the Series A
Exchangeable Preferred Stock, the Company will issue the Notes under an
Indenture (the "Indenture") between the Company and First Union National Bank
of North Carolina, as trustee (the "Trustee") at a rate of $50 principal
amount of Notes for each share of Series A Exchangeable Preferred Stock
exchanged. The Indenture has been filed as an exhibit to the Registration
Statement of which this Prospectus is a part and is available for inspection
at the office of the Trustee. The Indenture is governed by the Trust Indenture
Act of 1939, as amended. The following summaries of certain provisions of the
Indenture do not purport to be complete and where reference is made to
particular provisions of the Indenture, such provisions, including definitions
of certain terms, are incorporated by reference as part of such summaries,
which are qualified in their entirety by such reference.     
 
GENERAL
   
  The Notes will be unsecured, subordinated obligations of the Company, will
be limited in aggregate principal amount to $250,562,450 and will mature on
   , 2012. The Company will pay interest on the Notes quarterly in cash on
   ,    ,    and     of each year, at the rate of    % per annum. Interest on
the Notes will be paid to the persons who are registered holders at the close
of business on the    ,     ,     or     immediately preceding the interest
payment dates. Interest will be computed on the basis of a 360-day year of
twelve 30-day months. Principal (and premium, if any) and interest will be
payable, and the Notes may be presented for conversion, exchange or
registration of transfer, at the office or agency of the Company maintained
for such purposes or payment of interest may, at the option of the Company, be
made by check mailed to the address of the person entitled thereto as it
appears on the security register or, at the option of the holder, in
immediately available funds. The Notes are to be issued only in registered
form, without coupons, in denominations of $50 or any integral multiple
thereof.     
 
CONVERSION RIGHTS
   
  The holders of Notes will have the right at any time, through the close of
business on the maturity date, subject to prior redemption, to convert any
Notes (or any portion thereof that is an integral multiple of $50) into fully
paid and nonassessable shares of Common Stock, initially at the conversion
rate in effect on the Preferred Stock at the date of exchange of the Series A
Exchangeable Preferred Stock for Notes (subject to adjustment as described
below). If a Note is called for redemption prior to maturity, the conversion
right will terminate at 5:00 p.m. New York City time on the business day prior
to the date fixed for redemption unless in any such case, the Company shall
default in payment due upon such redemption. Except as described below, no
payment of interest and no adjustment in respect of dividends on the shares of
Common Stock will be made upon the conversion of any Notes, and the holder
will lose any right to payment of interest on the Notes surrendered for
conversion. Notes surrendered for conversion during the period from the
regular record date for an interest payment to the next succeeding interest
payment date (except Notes called for redemption during such period) must be
accompanied by payment of an amount equal to the interest thereon which the
holder is to receive on such interest payment date. No fractional shares of
Common Stock will be issued upon conversion but, in lieu thereof, an
appropriate amount will be paid in cash which, if available shall be based on
the last reported sale price for the shares of Common Stock on the NYSE on the
day of such conversion. The provisions in the Indenture for adjustment of the
conversion rate will be substantially the same as those applicable to the
Preferred Stock described under "Description of Preferred Stock--Conversion
Rights."     
 
SUBORDINATION
 
  Payment of the principal of (and premium, if any) and interest on the Notes
will be subordinated in right of payment, as set forth in the Indenture, to
the prior payment in full of all Senior Indebtedness when due in accordance
with the terms thereof. Senior Indebtedness will be defined in the Indenture
as the principal of (and premium, if any) and unpaid interest on, and all
other sums, whether direct or contingent including, without limitation, costs
and expenses of collection and enforcement (including the reasonable
 
                                      97
<PAGE>
 
   
fees and expenses of legal counsel engaged for such purpose) payable by the
Company relating to, the following (whether outstanding at the date of the
Indenture or thereafter incurred or created): (a) indebtedness of the Company
for money borrowed (including purchase-money obligations) evidenced by notes
or other written obligations including, without limitation, letters of credit
and bankers acceptances, (b) indebtedness of the Company evidenced by notes,
debentures, bonds or other securities issued under the provisions of an
indenture or similar instrument, (c) obligations of the Company as lessee
under capitalized leases and under leases of property made as part of any sale
and leaseback transactions, (d) indebtedness of others of any of the kinds
described in the preceding clauses (a) through (c) assumed or guaranteed by
the Company and (e) renewals, extensions and refundings of, and indebtedness
and obligations of a successor person issued in exchange for or in replacement
of indebtedness and obligations of the kinds described in the preceding
clauses (a) through (d); provided, however, that the following will not
constitute Senior Indebtedness: (i) any indebtedness or obligation as to
which, in the instrument creating or evidencing the same or pursuant to which
the same is outstanding, it is expressly provided that such indebtedness or
obligation is subordinate in right of payment to all other indebtedness of the
Company not expressly subordinated to such indebtedness or obligation, (ii)
any indebtedness or obligation which by its terms refers explicitly to the
Notes and states that such indebtedness or obligation shall not be senior in
right of payment thereto and (iii) any indebtedness or obligation of the
Company to a subsidiary.     
   
  Following the Rights Offering, $789.1 million of Senior Indebtedness will be
outstanding. There will be no restrictions on the creation of Senior
Indebtedness in the Indenture.     
   
  By reason of such subordination, in the event of liquidation, dissolution,
insolvency, bankruptcy, assignment to the benefit of creditors or other
similar proceeding, creditors (other than holders of Senior Indebtedness or
Notes) may recover less, ratably, than the holders of Senior Indebtedness and
may recover more, ratably, than the holders of the Notes and, upon any
distribution of assets, the holders of Notes will be required to pay over
their share of such distribution to the holders of Senior Indebtedness until
such Senior Indebtedness is paid in full. In addition, such subordination may
affect the Company's obligation to make principal and interest payments with
respect to the Notes, and the rights of the Trustee or the holders of the
Notes to exercise certain remedies under the Indenture (including the right to
declare the Notes due and payable prior to their stated maturity), in the
event of any default on the payment of principal (or premium, if any) or
interest on any Senior Indebtedness beyond any applicable grace period, or in
the event of any default with respect to Senior Indebtedness that would permit
or automatically effect acceleration of the maturity thereof or if any Notes
are declared due and payable prior to their stated maturity.     
          
GLOBAL SECURITIES     
   
  The Notes will be issued in the form of one or more global securities (each,
a "Global Security") that will be deposited with, or on behalf of DTC. Global
Securities may be issued only in fully registered form and in either temporary
or permanent form. Unless and until it is exchanged in whole or in part for
Notes in definitive form, and except as set forth below, a Global Security may
not be transferred except as a whole only to DTC or another nominee of DTC or
to a successor depositary or any nominee of such successor.     
   
  Upon the issuance of a Global Security, DTC or its nominee will credit, on
its book-entry registration and transfer system, the respective principal
amounts of the individual Notes represented by such Global Security to the
accounts of persons that have accounts with DTC or its nominee
("Participants"). Ownership of beneficial interests in a Global Security will
be limited to Participants or persons that may hold interests through
Participants. Ownership of beneficial interests in such Global Security will
be shown on, and the transfer of that ownership will be effected only through,
records maintained by DTC or its nominee (with respect to the interests of
Participants) and the records of Participants (with respect to interests of
persons other than Participants). The laws of some jurisdictions may require
that certain purchasers of securities take physical delivery of such
securities in definitive form. Such limits and such laws may impair the
ability to transfer beneficial interests in a Global Security.     
 
                                      98
<PAGE>
 
   
  So long as DTC, or its nominee, is the registered holder and owner of such
Global Security, DTC or such nominee, as the case may be, will be considered
the sole owner and holder of the Notes represented by such Global Security for
all purposes of such Notes and for all purposes under the Indenture. Except as
provided below, owners of beneficial interests in a Global Security will not
be entitled to have any of the individual Notes represented by such Global
Security registered in their names, will not receive or be entitled to receive
physical delivery of any such Notes in definitive form and will not be
considered the owners or holders thereof under the Indenture.     
   
  Accordingly, each person owning a beneficial interest in a Global Security
must rely on the procedures of DTC and, if such person is not a Participant,
on the procedures of the Participant through which such person owns its
interest, to exercise all rights of a holder of Notes or such Global Security.
The Company understands that under existing industry practice, in the event
the Company requests any action of holders of Notes or an owner of a
beneficial interest in a Global Security desires to take any action that DTC,
as the holder of such Global Security, is entitled to take, DTC would
authorize the Participants to take such action, and that the Participants
would authorize beneficial owners owning through such Participants to take
such action or would otherwise act upon the instructions of beneficial owners
owning through them.     
   
  Payments of principal of, any premium on, and any interest on, individual
Notes represented by a Global Security will be made to DTC or its nominee, as
the case may be, as the registered owner and holder of the Global Security
representing such Notes.     
   
  The Company expects that DTC or its nominee, upon receipt of any payment of
principal, premium or interest in respect of a Global Security, immediately
will credit Participants' accounts with payments in amounts proportionate to
their respective beneficial interests in the principal amount of such Global
Security as shown on the records of DTC or its nominee. The Company also
expects that payments by Participants to owners of beneficial interests in a
Global Security held through Participants will be governed by standing
instructions and customary practices, as is now the case with securities held
for the accounts of customers in bearer form or registered in "street name."
Such payments will be the responsibility of such Participants.     
   
  No Global Security may be transferred to, or registered or exchanged for
Notes registered in the name of, any person other than DTC for such Global
Security or any nominee or successor thereof, and no such transfer may be
registered, unless (i) DTC (A) notifies the Company that it is unwilling or
unable to continue as depositary for such Global Security or (B) ceases to be
qualified to serve as depositary, (ii) the Company executes and delivers to
the Trustee a written request that such Global Security shall be so
transferable, registrable and exchangeable, and such transfers shall be
registrable, or (iii) there shall have occurred and be continuing an event of
default. A Global Security to which the restriction set forth in the preceding
sentence shall have ceased to apply may be transferred only to, and may be
registered and exchanged for Notes registered only in the name or names of,
such person or persons as DTC shall have directed and no transfer thereof
other than such a transfer may be registered.     
          
  DTC is a limited-purpose trust company organized under the New York Banking
Law, a "banking organization" within the meaning of the New York Banking Law,
a member of the Federal Reserve System, a "clearing corporation" within the
meaning of the New York Uniform Commercial Code and a "clearing agency"
registered pursuant to the provisions of Section 17A of the Exchange Act. DTC
was created to hold securities of Participants and to facilitate the clearance
and settlement of securities transactions among the Participants, thereby
eliminating the need for physical delivery of securities and certificates.
Participants include securities brokers and dealers (including the Dealer
Manager), banks, trust companies, clearing corporations and certain other
organizations, some of which (and/or their representatives) own DTC.     
 
                                      99
<PAGE>
 
   
  Access to the DTC's book-entry system is also available to others such as
banks, brokers, dealers and trust companies that clear through or maintain a
custodial relationship with Participants, either directly or indirectly
("Indirect Participants"). Persons who are not Participants may beneficially
own securities held by DTC only through Participants or Indirect Participants.
The rules applicable to DTC and the Participants are on file with the
Commission. DTC currently accepts only notes denominated and payable in U.S.
dollars.     
 
REDEMPTION AT OPTION OF COMPANY
   
  The Notes are not redeemable prior to    , 2000. On or after such date the
Notes may be redeemed by the Company, at its option, in whole or in part at
any time and from time to time subject to the limitations, if any, imposed by
applicable law, at a redemption price, expressed as a percentage of the
principal amount, subject to the rights of Holders of record on a record date
to receive interest due on an interest payment date that is prior to such
redemption date together with accrued and unpaid interest to the date fixed
for redemption, if redeemed during the twelve month period beginning     of
the years indicated below:     
 
<TABLE>
<CAPTION>
                                                                      Redemption
      Year                                                              Price
      ----                                                            ----------
      <S>                                                             <C>
      2000...........................................................       %
      2001...........................................................
      2002...........................................................
      2003...........................................................
      2004...........................................................
      2005...........................................................
      2006 and thereafter............................................    100%
</TABLE>
 
  Notes in any denomination equal to or larger than $50 may be redeemed in
whole or in part in multiples of $50. On and after the redemption date,
interest will cease to accrue on Notes or portions thereof called for
redemption.
   
  Notice of redemption will be mailed by first class mail at least 30 but not
more than 60 days prior to the redemption date to each holder of Notes to be
redeemed at the address appearing in the security register. If less than all
the outstanding Notes are to be redeemed, the Trustee will select the Notes
(or portion thereof equal to $50 or any integral multiple thereof) to be
redeemed by lot or by such other method as the Trustee shall deem fair and
appropriate.     
 
CONSOLIDATION, MERGER AND SALE OF ASSETS
   
  The Company, without the consent of any holders of Notes may consolidate or
merge with or into any person, or convey, transfer or lease its properties and
assets substantially as an entirety to any person, provided that (i) the
person (if other than the Company) formed by such consolidation or into which
the Company is merged or which acquires by conveyance or transfer or leases
the properties and assets of the Company substantially as an entirety is a
corporation, partnership or trust organized and validly existing under the
laws of the United States, any state thereof or the District of Columbia, and
expressly assumes the Company's obligations on the Notes and under the
Indenture, (ii) after giving effect to such transaction, no event of default
and no event that, after notice or lapse of time or both, would become an
event of default shall have happened and be continuing and (iii) certain other
conditions are met.     
 
  The provisions of the Indenture may not necessarily afford the holders of
the Notes protection in the event of a highly leveraged transaction, including
a reorganization, restructuring, merger or similar transaction involving the
Company that may adversely affect the holders.
 
                                      100
<PAGE>
 
REPORTS
   
  The Indenture will provide that whether or not the Company is subject to the
reporting requirements of Section 13 or 15(d) of the Securities Exchange Act
of 1934, as amended (the "Exchange Act"), the Company shall deliver to the
Trustee and make available to each Holder, within 15 days after it files or
would have been required to file such reports with the Commission, annual and
quarterly financial statements substantially equivalent to financial
statements that would have been included in reports filed with the Commission
if the Company were subject to the requirements of Section 13 or 15(d) of the
Exchange Act, including, with respect to annual information only, a report
thereon by the Company's certified independent public accountants as such
would be required in such reports to the Commission, and in each case,
together with management's discussion and analysis of financial condition and
results of operations which would be so required.     
 
DEFAULTS AND REMEDIES
   
  An event of default under the Indenture is defined as: default for 30 days
in payment of interest on the Notes; default in payment of principal of (or
premium, if any, on) the Notes; failure by the Company for 60 days after
written notice to it to comply with any of its other covenants or agreements
of the Notes or in the Indenture; and certain events of bankruptcy, insolvency
or reorganization relative to the Company or its subsidiaries. If an event of
default occurs and is continuing (other than certain events of bankruptcy,
insolvency or reorganization as specified above in which case the Notes will
be immediately due and payable), the Trustee or holders of at least 25% in
aggregate principal amount of the Notes outstanding may, subject to the
applicable subordination provisions, declare the Notes to be due and payable
immediately, but under certain conditions such acceleration may be rescinded
by the holders of a majority in principal amount of the Notes then
outstanding.     
   
  Holders of Notes may not enforce the Indenture except as provided in the
Indenture and except that, subject to the applicable subordination provisions,
nothing shall prevent the holders of Notes from enforcing payment of the
principal (or premium, if any) or (except for defaulted interest as set forth
in the Indenture) interest on, or conversion of, their Notes. The Trustee may
refuse to enforce the Indenture unless it receives reasonable security or
indemnity. Subject to certain limitations, holders of a majority in principal
amount of the Notes may direct the Trustee in its exercise of any trust or
power under the Indenture.     
 
  The Company will annually furnish the Trustee with an officers' certificate
with respect to compliance with the terms of the Indenture.
 
MODIFICATION
   
  Modification and amendment of the Indenture or the entering into a
supplemental indenture may be effected by the Company and the Trustee with the
consent of the holders of not less than a majority in aggregate principal
amount of the then outstanding Notes, provided that no such modification,
amendment or supplemental indenture may, without the consent of each holder
affected thereby, (i) reduce the percentage of principal amount of Notes whose
holders must consent to an amendment, supplement or waiver of any provision of
the Indenture or the Notes; (ii) reduce the rate or extend the time for
payment of interest on any Note; (iii) reduce the principal or premium amount
of any Note, or reduce the price of redemption; (iv) change the date on which
the principal of the Notes or an installment of interest thereon is due and
payable; (v) alter the redemption provisions of the Indenture in a manner
adverse to any holder of Notes; (vi) make any change to the unconditional
right of holders of Notes to receive principal, premium and interest on the
Notes or the provisions of the Indenture relating to waiver of default (except
to increase the aggregate principal amount of Notes necessary to waive any
past default or to include in other provisions of the Indenture, a default in
respect of which may not be governed by the provisions of the Indenture
relating to waiver of default); (vii) make the principal of, or the interest
or premium on, any Note payable with anything or in any manner other than as
provided for in the Indenture (including changing the place of payment where,
or the coin or currency in which, any Note or any premium or the interest
thereon     
 
                                      101
<PAGE>
 
   
is payable) and the Notes; (viii) adversely affect the right to convert any
Note; or (ix) modify the subordination provisions of the Indenture in a manner
adverse to the holders of the Notes. The Indenture also contains provisions
permitting the Company and the Trustee to effect certain minor modifications
of the Indenture not adversely affecting the rights of holders of Notes in any
material respect.     
          
LEGAL DEFEASANCE AND COVENANT DEFEASANCE     
   
  The Indenture will provide that the Company may, at its option and at any
time, elect to have its obligations discharged with respect to the outstanding
Notes ("Legal Defeasance"). Such Legal Defeasance means that the Company shall
be deemed to have paid and discharged the entire indebtedness represented by
the Notes, and the Indenture shall cease to be of further effect as to all
outstanding Notes, except as to (i) rights of holders of Notes to receive
payments in respect of principal of, premium, if any, and interest on such
Notes when such payments are due from the trust funds, (ii) the Company's
obligation with respect to such Notes concerning issuing temporary Notes,
transfer or exchange of Notes, replacement of Notes and the maintenance of an
office of agency for payment and money for security payments held in trust,
(iii) the rights, powers, trusts, duties and immunities of the Trustee, and
the Company's obligations in connection therewith and (iv) the Legal
Defeasance provisions of the Indenture. In addition, the Company may at its
option and at any time, elect to have the obligations of the Company released
with respect to certain covenants that are described in the Indenture
("Covenant Defeasance") and thereafter any omission to comply with such
obligations shall not constitute a default or event of default with respect to
the Notes. In the event Covenant Defeasance occurs, certain events will no
longer constitute a default with respect to the Notes.     
   
  In order to exercise either Legal Defeasance or Covenant Defeasance, (i) the
Company must irrevocably deposit with the Trustee, in trust, for the benefit
of the holders of the Note, U.S. legal tender, non-callable government
securities or a combination thereof, in such amounts as will be sufficient, in
the opinion of a nationally recognized firm of independent public accountants,
to pay the principal of, premium, if any, and interest on such Notes on the
stated date for payment thereof or the redemption date of such principal or
installment of principal, premium, if any, or interest on such Notes, (ii) in
the case of Legal Defeasance, the Company shall have delivered to the Trustee
an opinion of counsel in the United States reasonably acceptable to the
Trustee confirming that (A) the Company has received from, or there has been
published by the Internal Revenue Service, or (B) since the date of the
Indenture, there has been a change in the applicable Federal income tax law,
in each case to the effect that, and based thereon such opinion shall confirm
that, the holders of such outstanding Notes shall not recognize income, gain
or loss for Federal income tax purposes as a result of such Legal Defeasance,
and will be subject to Federal income tax in the same amount, in the same
manner and at the same times as would have been the case if such Legal
Defeasance had not occurred, (iii) in the case of Covenant Defeasance, the
Company shall have delivered to the Trustee an opinion of counsel in the
United States confirming that the holders of such Notes shall not recognize
income, gain or loss for Federal income tax purposes as a result of such
Covenant Defeasance, and will be subject to Federal income tax in the same
amount, in the same manner and at the same times as would have been the case
if such Covenant Defeasance had not occurred, (iv) no default or event of
default with respect to the Notes shall have occurred and be continuing on the
date of such deposit or insofar as events of default for bankruptcy are
concerned, at any time in the period ending on the 91st day after the date of
deposit, (v) such Legal Defeasance or Covenant Defeasance shall not result in
a breach of or violation of, or constitute a default under the Indenture or
any other material agreement or instrument to which the Company or any of its
subsidiaries is a party or by which the Company or any of its subsidiaries is
bound, (vi) the Company shall have delivered to the Trustee an Officers'
Certificate stating that deposit was not made by the Company with the intent
of preferring the holders of the Notes over any other creditors of the Company
or with the intent of defeating, hindering, delaying or defrauding any
creditors of the Company or others, and (vii) the Company shall have delivered
to the Trustee an Officers' Certificate stating that all conditions precedent
provided for or relating to the Legal Defeasance or Covenant Defeasance have
been complied with.     
 
                                      102
<PAGE>
 
                    CERTAIN FEDERAL INCOME TAX CONSEQUENCES
   
  The following discussion, which is the opinion of Davis Polk & Wardwell,
sets forth the material Federal income tax consequences of the receipt,
ownership and disposition of the Rights, the Preferred Stock and the Notes to
the United States holders described herein under present law. This discussion
is based on the Internal Revenue Code of 1986, as amended to the date hereof
(the "Code"), administrative pronouncements, judicial decisions and existing
and proposed Treasury Regulations, changes to any of which subsequent to the
date of this Prospectus may affect the tax consequences described herein. In
this connection, it should be noted that as used in the discussion below, the
term "earnings and profits" refers to the Company's earnings and profits as
determined under the Code. There is no assurance that the Company will have
earnings and profits for any particular taxable year. This discussion
addresses only initial distributees of the Rights who hold all their Common
Stock, the Rights, the Preferred Stock and the Notes as capital assets within
the meaning of section 1221 of the Code. It does not discuss all of the tax
consequences that may be relevant to a holder in light of its particular
circumstances or to holders subject to special rules, such as certain
financial institutions, insurance companies, dealers in securities and holders
that are, for Federal income tax purposes, non-resident alien individuals or
foreign corporations. Holders should consult their tax advisors with regard to
the application of the Federal income tax laws to their particular situations
as well as any tax consequences arising under the laws of any state, local or
foreign taxing jurisdiction.     
 
  On February 6, 1997, the Clinton Administration released several revenue
proposals that, if adopted, may, with respect to certain holders, affect the
Federal income tax consequences of holding the Preferred Stock. Among such
proposals is the proposal to reduce the dividend-received deduction rate from
70% to 50% for any corporation that owns less than 20% (by vote and value) of
the stock of the Company. There can be no assurance as to whether or when any
of such proposals will become effective.
 
THE RIGHTS
   
  For Federal income tax purposes, receipt of Rights by a shareholder pursuant
to the Rights Offering should, in the opinion of Davis Polk & Wardwell, be
treated as a nontaxable distribution with respect to the Common Stock with the
consequences described below.     
 
  If the fair market value of the Rights is less than 15% of the fair market
value of the Common Stock on the date of distribution, then pursuant to
section 307(b) of the Code, the Rights will be allocated a zero basis, unless
the shareholder affirmatively elects to allocate basis in proportion to their
relative fair market values determined on such date. Such election must be
made in the shareholder's tax return for the taxable year in which the Rights
are received. On the other hand, if the fair market value of the Rights equals
or exceeds 15% of the fair market value of the Common Stock on such date, then
the shareholder's basis in the Common Stock must be allocated between the
Common Stock and the Rights received in proportion to their relative fair
market values.
 
  In the case of exercise, any basis allocated to the Rights should be added
to the basis of the Preferred Stock that is so acquired. An initial
distributee shareholder would not be able to claim a loss if its Rights expire
unexercised. If a shareholder elects to sell its Rights, the shareholder
should include its holding period in the Common Stock with respect to which
the Rights were distributed in determining the holding period of the Rights.
 
  If the Company has, as of the date of the issuance of the Rights, current or
accumulated earnings and profits, then the Rights will, with respect to the
initial distributees of such Rights, be treated as "section 306 stock." In
that event, each Right, with respect to an initial distributee, shall carry
section 306 "taint" in the amount equal to the lesser of (i) the fair market
value of the Right on the date of distribution, or (ii) the allocable share of
the Company's current or accumulated earnings and profits. Under such
circumstances, subject to
 
                                      103
<PAGE>
 
certain exceptions, an initial distributee shareholder who disposes of the
Rights must treat the proceeds as ordinary income to the extent of the "taint"
and cannot recognize a loss on the sale of the Rights.
 
THE PREFERRED STOCK
   
  Dividends. Cash dividends paid on Preferred Stock will be taxable as
ordinary income to the extent of the Company's earnings and profits. To the
extent that the amount of cash distributions paid on Preferred Stock exceeds
the Company's earnings and profits, such distributions will be treated first
as a return of capital and will be applied against and reduce the adjusted tax
basis of Preferred Stock in the hands of the shareholder. Any remaining amount
after the holder's basis has been reduced to zero will be taxable.     
 
  Dividends paid in kind on the Series B PIK Preferred Stock will be taxable
as ordinary income in an amount equal to the lesser of (i) the fair market
value of the Series B PIK Preferred Stock paid in kind and (ii) the Company's
earnings and profits. Thus, holders of Series B PIK Preferred Stock may
recognize income without the receipt of cash to pay the tax attributable to
such income. To the extent that the fair market value of distributions in
Series B PIK Preferred Stock exceed the Company's earnings and profits, such
distributions will be treated first as a return of capital and applied against
and reduce the basis of the Series B PIK Preferred Stock with respect to which
such distributions were made. Any amount remaining after such basis has been
reduced to zero will be taxable. A recipient's adjusted basis in the Series B
PIK Preferred Stock received as a dividend will equal the fair market value of
such shares on the date of distribution, and the holding period for such
shares will begin on the date following the date of distribution.
 
  For purposes of the remainder of this discussion, the term "dividend" refers
to a distribution taxable as ordinary income as described above unless the
context indicates otherwise. Dividends received by corporate shareholders will
be eligible for a dividends-received deduction under section 243 of the Code,
subject to the limitations contained in sections 246 and 246A of the Code.
   
  Under certain circumstances, section 1059 of the Code would require a
corporate shareholder to reduce its basis in the Preferred Stock by the
"nontaxed portion" of any "extraordinary dividend." Generally, the nontaxed
portion of an extraordinary dividend is the amount excluded from income under
section 243 of the Code (relating to the dividends-received deduction). Under
the Code, the term "extraordinary dividend" includes any redemption of stock
that is treated as a dividend and that is non-pro rata as to all shareholders,
including holders of common stock, irrespective of holding period, as well as
all dividends on "disqualified preferred stock." An "extraordinary dividend"
may arise from an exchange of Preferred Stock for Notes or cash, and the
Preferred Stock may constitute "disqualified preferred stock." Corporate
shareholders should consult their tax advisors with respect to the possible
application of the extraordinary dividend rules.     
 
  Redemption and Exchange for the Notes. Subject to the discussion below with
respect to section 306 of the Code, the redemption of Preferred Stock for cash
will be treated as a distribution that is taxable as a dividend to the extent
of the Company's allocable earnings and profits unless the redemption (a)
results in a "complete termination" of the shareholder's stock interest in the
Company, (b) is "substantially disproportionate," or (c) is "not essentially
equivalent to a dividend" under section 302 of the Code. In determining
whether any of these tests has been met, shares considered to be owned by the
shareholder by reason of certain constructive ownership rules set forth in
section 318 of the Code, as well as shares actually owned, must generally be
taken into account. A distribution to a shareholder will be "not essentially
equivalent to a dividend" if it results in a "meaningful reduction" in the
shareholder's stock interest in the Company. The Internal Revenue Service has
issued a published ruling indicating that a redemption which results in a
reduction in the proportionate interest in the Company (taking into account
the section 318 constructive ownership rules) of a shareholder whose relative
stock interest is minimal (an interest of less than 1% should satisfy this
requirement) and who exercises no control over Company affairs should be
treated as being "not essentially equivalent to a dividend." If any of these
three tests is
 
                                      104
<PAGE>
 
met, the redemption of the Preferred Stock for cash would be treated, as to
that shareholder, as an exchange under section 302(a) of the Code giving rise
to capital gain or loss.
 
  If the Rights are treated as "section 306 stock," then the Preferred Stock
acquired pursuant to the exercise by the initial distributee shareholder of
such Rights would constitute "section 306 stock" in the hands of such
shareholder to the extent of the original "taint" on the Rights. Under section
306(a)(2) of the Code, proceeds equal to the amount of such "taint" received
upon the redemption of the Preferred Stock will be taxable as ordinary income
to the extent of the Company's earnings and profits at the time of the
redemption, unless the "complete termination" test described above is met.
 
  A redemption of the Series A Exchangeable Preferred Stock in exchange for
Notes cannot qualify under the "complete termination" or "substantially
disproportionate" tests described above. The redemption would, therefore, be
treated as a distribution to the extent of the fair market value of the Notes
and taxable as a dividend to the extent of the shareholder's allocable share
of the Company's earnings and profits unless it satisfies the "not essentially
equivalent to a dividend" test. The Internal Revenue Service has ruled that a
holder of convertible notes is considered to own the underlying stock for
purposes of the section 318 constructive ownership rules, and further that a
redemption which does not result in any reduction in the interest of a
shareholder does not satisfy the meaningful reduction standard even if such
shareholder holds only a minimal interest. Therefore, under a literal
interpretation of the statute, regulations and rulings, the receipt of Notes
in exchange for the Series A Exchangeable Preferred Stock will be taxable as a
dividend to the extent of the shareholder's allocable share of the Company's
earnings and profits. Accordingly, each shareholder should consult its tax
advisor regarding this issue, including the possible effect of the disposition
of a portion of its interest in the Company contemporaneously and as part of
an integrated plan with the exchange for Notes.
 
  If a shareholder is treated as having received a dividend upon a redemption
for cash or an exchange for Notes, the basis of its Preferred Stock so
redeemed or exchanged will be transferred to any remaining stockholdings in
the Company. If the shareholder does not retain any stock ownership in the
Company, it may be permitted to transfer such basis to any Notes received in
the exchange or it may lose such basis entirely.
 
  Sale of Preferred Stock. Subject to the discussion below with respect to
section 306 of the Code, a holder will recognize taxable gain or loss upon the
sale or disposition (other than a redemption or an exchange for Notes as
discussed above) of shares of Preferred Stock equal to the difference between
the amount of cash or the fair market value of property received and the
holder's tax basis in the shares. Such gain or loss will be capital gain or
loss and will be long-term capital gain or loss if the holder has held the
shares of Preferred Stock for more than one year.
 
  If the Rights constitute "section 306 stock" as described above, then upon
the sale or disposition of the Preferred Stock acquired through the exercise
of the Rights, the proceeds received will be taxable as ordinary income to the
extent of the "taint." Furthermore, no loss will be recognized upon the sale
or disposition; any unrecovered basis would revert to the shareholder's
remaining Common Stock holdings or possibly to its Preferred Stock holdings,
or, if the shareholder does not retain any such holding, it may lose such
basis entirely.
 
THE NOTES
 
  Original Issue Discount. For purposes of the following discussion, it is
assumed that the Notes will constitute debt for Federal income tax purposes
and will not constitute "applicable high-yield discount obligations" under
section 163(i) of the Code, and that the Notes or the Series A Exchangeable
Preferred Stock will be readily tradeable on an established securities market
at the time of exchange of the Notes for the Series A Exchangeable Preferred
Stock. In general, if a Note's stated redemption price at maturity exceeds its
"issue price," it will be considered to have been issued at an original issue
discount ("OID")
 
                                      105
<PAGE>
 
in an amount equal to such excess. For these purposes, the issue price of a
Note will be equal to the fair market value of the Note (including the value
of the conversion feature) as of the issue date or, if the Note is not traded
on an established securities market within 30 days of the issue date, the fair
market value of the Series A Exchangeable Preferred Stock on such date. The
stated redemption price at maturity of a Note will equal the sum of all
payments required under the Note other than payments of "qualified stated
interest." "Qualified stated interest" is stated interest unconditionally
payable as a series of payments in cash or property (other than interest
payments payable in debt instruments of the Company) at least annually during
the entire term of the Note and equal to the outstanding principal balance of
the Note multiplied by a single fixed rate of interest.
 
  If the difference between a Note's stated redemption price at maturity and
its issue price is less than a de minimis amount, i.e., 1/4 of 1 percent of
the stated redemption price at maturity multiplied by the number of complete
years to maturity, then the Note will not be considered to have OID.
 
  A holder will be required to include any qualified stated interest payments
in income in accordance with the holder's method of accounting for Federal
income tax purposes. A holder will also be required to include any OID in
income for Federal income tax purposes as it accrues, in accordance with a
constant yield method based on a compounding of interest, before the receipt
of cash payments attributable to such income. Under this method, a holder
generally will be required to include in income increasingly greater amounts
of OID in successive accrual periods.
 
  Bond Premium. If the issue price of the Note reduced by the portion
attributable to the conversion feature exceeds the amount payable at maturity,
a holder will have "amortizable bond premium" equal in amount to such excess,
and may elect (in accordance with applicable Code provisions) to amortize such
premium, using a constant yield method. A holder who elects to amortize bond
premium must reduce its tax basis in the Note by the amount of the premium
amortized in any year. An election to amortize bond premium applies to all
taxable debt obligations then owned and thereafter acquired by the taxpayer
and may be revoked only with the consent of the Internal Revenue Service.
 
  Redemption or Sale of Notes. Generally, any redemption or sale of Notes by a
holder will result in taxable gain or loss equal to the difference between the
amount of cash received (except to the extent that cash received is
attributable to interest which has not been included in income) and the
holder's tax basis in the Notes. Unless the exchange for the Notes was treated
as a dividend, the tax basis of a holder in a Note will generally be equal to
the issue price of the Note plus any OID included in the holder's income prior
to sale or redemption of the Note, reduced by any bond premium amortized prior
to such sale or redemption. Such gain or loss will be capital gain or loss and
will be long-term capital gain or loss if the holding period exceeds one year.
 
CONVERSION OF PREFERRED STOCK OR NOTES INTO COMMON STOCK
 
  Generally, no gain or loss will be recognized for Federal income tax
purposes on conversion of Preferred Stock or Notes solely into shares of
Common Stock, except with respect to any cash received in lieu of a fractional
share interest (in an amount equal to the difference between the cash received
and the holder's adjusted tax basis allocable to such fractional shares). A
holder's basis in the Common Stock received upon conversion will be the same
as its basis in the Preferred Stock (assuming there are no dividend
arrearages) or Notes, excluding the basis allocated to any fractional share as
described above. The holding period of the Common Stock received upon
conversion of Preferred Stock will include the holding period of the Preferred
Stock. With respect to any Common Stock acquired upon the conversion of a
Note, except for the portion, if any, of each full share of Common Stock
attributable to interest accrued within the meaning of section 354(a)(2)(B) of
the Code on or after the date on which the holder acquired the Note, the
Common Stock will have a holding period commencing on the day after the date
on which the holder acquired the Note.
 
                                      106
<PAGE>
 
  If a shareholder converts Preferred Stock when dividends are in arrears, it
may be deemed to receive a distribution taxable as a dividend. Under such
circumstances, the shareholder is advised to consult its tax advisor
concerning the calculation of the amount of the dividend and the determination
of the holding period of the Common Stock received upon conversion.
 
CONVERSION ADJUSTMENTS FOR THE PREFERRED STOCK AND THE NOTES
 
  The conversion price of the Preferred Stock and Notes is subject to
adjustment under certain circumstances. Holders may be deemed to receive a
dividend to the extent of the Company's earnings and profits if the conversion
price is adjusted to reflect a taxable distribution of property to holders of
Common Stock or in certain other circumstances involving conversion price
adjustments. Such deemed dividend would be includible in gross income,
although the holder would not receive any cash.
 
BACKUP WITHHOLDING AND INFORMATION REPORTING
 
  A holder of Common Stock, Rights, Preferred Stock or Notes may be subject to
information reporting and to backup withholding at the rate of 31% with
respect to dividends or interest paid on, or the proceeds of a sale, exchange
or redemption thereof, as the case may be, unless such holder provides proof
of an applicable exemption or a correct taxpayer identification number, and
otherwise complies with applicable requirements of the backup withholding
rules. The amounts withheld under the backup withholding rules are not an
additional tax and may be refunded or credited against the holder's Federal
income tax liability, provided the required information is furnished to the
Internal Revenue Service on a timely basis.
 
                                      107
<PAGE>
 
                             PLAN OF DISTRIBUTION
 
  The Company has retained Credit Suisse First Boston to act as dealer manager
in connection with the Rights Offering. The Dealer Manager will provide
marketing assistance and financial advisory services in connection with the
Rights Offering and will solicit the exercise of Rights by Rights Holders.
 
  In its capacity as financial advisor, Credit Suisse First Boston provided
advice to the Company regarding the structure of the Rights Offering and with
respect to marketing the shares of Preferred Stock to be issued in the Rights
Offering.
   
  The Company has agreed to pay the Dealer Manager a fee of 4% of the proceeds
raised in the Rights Offering excluding proceeds raised from or by Roche
Holdings or any of its affiliates. The maximum compensation that the Dealer
Manager would receive under this arrangement is $10,022,498.     
 
  In addition, the Company has agreed to indemnify the Dealer Manager with
respect to certain liabilities, including civil liabilities under the
Securities Act, or contribute to payments which the Dealer Manager may be
required to make in respect thereof.
   
  The Company is also required to pay to Credit Suisse First Boston, as
financial advisor, a fee in the amount of $1,000,000. In addition, the Company
has agreed to reimburse Credit Suisse First Boston, upon request made from
time to time, for certain out-of-pocket expenses incurred in connection with
its activities as financial advisor.     
 
  Credit Suisse First Boston has not prepared any report or opinion
constituting a recommendation or advice to the Company or its stockholders,
nor has Credit Suisse First Boston prepared an opinion as to the fairness of
the Subscription Price or the terms of the Rights Offering to the Company or
its current stockholders. Credit Suisse First Boston expresses no opinion and
makes no recommendation to holders of Rights as to the purchase by any person
of Underlying Shares. Credit Suisse First Boston also expresses no opinion as
to the prices at which shares to be distributed in connection with the Rights
Offering may trade if and when they are issued or at any future time.
 
  Other than the Dealer Manager, the Company has not employed any brokers,
dealers or underwriters in connection with the solicitation of exercise of
Rights, and, except as described above, no other commissions, fees or
discounts will be paid in connection with the Rights Offering. Certain
employees of the Company may solicit responses from Rights Holders, but such
employees will not receive any commissions or compensation for such services
other than their normal employment compensation.
 
  An affiliate of the Dealer Manager will receive proceeds from the Rights
Offering in connection with its role as a lender under the Company's Existing
Credit Agreement and Amended Credit Agreement.
   
  The Dealer Manager may engage in stabilizing transactions in accordance with
Regulation M under the Exchange Act. Stabilizing transactions permit bids to
purchase the underlying security so long as the stabilizing bids do not exceed
a specified maximum. Such stabilizing transactions may cause the price of the
securities to be higher than it would otherwise be in the absence of such
transactions. These transactions may be effected on the NYSE or otherwise and,
if commenced, may be discontinued at any time.     
 
                                 LEGAL MATTERS
 
  The validity of the Preferred Stock and Notes and certain other matters will
be passed upon for the Company by Davis Polk & Wardwell. Davis Polk & Wardwell
from time to time provides legal services to the Company and its affiliates.
 
                                      108
<PAGE>
 
                                    EXPERTS
 
  The consolidated financial statements and schedule of the Company as of
December 31, 1996 and 1995, and for each of the years in the three-year period
ended December 31, 1996, have been included or incorporated by reference
herein and in the Registration Statement in reliance upon the reports of KPMG
Peat Marwick LLP, independent certified public accountants, appearing
elsewhere herein or incorporated by reference herein upon the authority of
said firm as experts in accounting and auditing.
 
                             AVAILABLE INFORMATION
 
  The Company is subject to the informational requirements of the Exchange Act
and in accordance therewith files reports, proxy statements and other
information with the Commission. Such reports, proxy statements and other
information filed by the Company may be inspected and copied at the public
reference facilities maintained by the Commission at Room 1024, 450 Fifth
Street, N.W., Judiciary Plaza, Washington, D.C. 20549, and at the Commission's
following Regional Offices: Chicago Regional Office, Citicorp Center, 500 West
Madison Street, Suite 1400, Chicago, Illinois 60661; and New York Regional
Office, 7 World Trade Center, New York, New York 10048. Copies of such
material can also be obtained at prescribed rates from the Public Reference
Section of the Commission at 450 Fifth Street, N.W., Judiciary Plaza,
Washington, D.C. 20549-1004. The Commission maintains an Internet web site
that contains reports, proxy and information statements and other information
regarding issuers that file electronically with the Commission. The address of
that site is http://www.sec.gov. The Company's Common Stock is listed on the
New York Stock Exchange, Inc. and reports and other information concerning the
Company can also be inspected at the office of the New York Stock Exchange,
Inc., 20 Broad Street, New York, New York 10005.
 
  The Company has filed with the Commission a Registration Statement on Form
S-3 under the Securities Act with respect to the securities offered hereby.
This Prospectus does not contain all of the information set forth in the
Registration Statement and the exhibits and schedules thereto. Statements
contained in this Prospectus as to the contents of any contract or other
document referred to are not necessarily complete and in each instance where
such contract or other document has been filed as an exhibit to the
Registration Statement, reference is made to the exhibit so filed, each such
statement being qualified in all respects by such reference. For further
information with respect to the Company and the securities offered hereby,
reference is made to the Registration Statement and exhibits thereto. The
information so omitted, including exhibits, may be obtained from the
Commission at its principal office in Washington, D.C. upon the payment of the
prescribed fees, or may be inspected without charge at the Public Reference
Section of the Commission at 450 Fifth Street, N.W., Judiciary Plaza,
Washington, D.C. 20549-1004.
 
                                      109
<PAGE>
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
   
  The Company's Annual Report on Form 10-K for the fiscal year ended December
31, 1996, the Company's Amendment on 10-K/A to its Annual Report on 10-K for
the year ended December 31, 1996, dated April 29, 1997, the Company's Reports
on Form 8-K dated January 6, 1997, February 27, 1997, March 3, 1997, April 11,
1997, April 21, 1997 and April 25, 1997 and the Company's Report on Form 8-K/A
dated February 26, 1997 are hereby incorporated by reference in this
Prospectus except as superseded or modified herein. All documents filed with
the Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the Exchange
Act, after the date of this Prospectus and prior to the termination of the
offering shall be deemed to be incorporated by reference into this Prospectus
and to be a part hereof from the date of filing of such documents. Any
statement contained in any document incorporated or deemed to be incorporated
by reference herein shall be deemed to be modified or superseded for purposes
of this Prospectus to the extent that a statement contained herein or in any
other subsequently filed document which also is or is deemed to be
incorporated by reference herein modifies or supersedes such statement. Any
such statement so modified or superseded shall not be deemed, except as
modified or superseded, to constitute a part of this Prospectus. The Company
will provide without charge to each person, including any beneficial owner, to
whom this Prospectus is delivered, upon written or oral request of such
person, a copy of any and all of the documents that have been or may be
incorporated by reference herein (other than exhibits to such documents which
are not specifically incorporated by reference into such documents). Such
requests should be directed to Attention: Bradford T. Smith, Secretary,
Laboratory Corporation of America Holdings, 358 South Main Street, Burlington,
North Carolina 27215, (910) 229-1127.     
 
                                      110
<PAGE>
 
                   LABORATORY CORPORATION OF AMERICA HOLDINGS
 
                   INDEX TO FINANCIAL STATEMENTS AND SCHEDULE
 
<TABLE>
<CAPTION>
                                                                           Page
                                                                           ----
<S>                                                                        <C>
Independent Auditors' Report.............................................   F-2
Financial Statements:
Consolidated Balance Sheets as of December 31, 1996 and 1995.............   F-3
Consolidated Statements of Operations for each of the years in the three-
 year period ended December 31, 1996.....................................   F-4
Consolidated Statements of Stockholders' Equity for each of the years in
 the three-year period ended December 31, 1996...........................   F-5
Consolidated Statements of Cash Flows for each of the years in the three-
 year period ended December 31, 1996.....................................   F-6
Notes to Consolidated Financial Statements...............................   F-8
Financial Statement Schedule:
  II--Valuation and Qualifying Accounts and Reserves.....................  F-26
</TABLE>
 
                                      F-1
<PAGE>
 
                         INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Stockholders
Laboratory Corporation of America Holdings:
 
  We have audited the consolidated financial statements of Laboratory
Corporation of America Holdings and subsidiaries as listed in the accompanying
index. In connection with our audits of the consolidated financial statements,
we also have audited the financial statement schedule as listed in the
accompanying index. These consolidated financial statements and financial
statement schedule are the responsibility of the Company's management. Our
responsibility is to express an opinion on these consolidated financial
statements and financial statement schedule based on our audits.
 
  We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable basis
for our opinion.
 
  In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Laboratory
Corporation of America Holdings and subsidiaries as of December 31, 1996 and
1995, and the results of their operations and their cash flows for each of the
years in the three-year period ended December 31, 1996, in conformity with
generally accepted accounting principles. Also in our opinion, the related
financial statement schedule, when considered in relation to the basic
consolidated financial statements taken as a whole, presents fairly, in all
material respects, the information set forth therein.
 
                                          KPMG Peat Marwick LLP
 
Raleigh, North Carolina
February 14, 1997 except for Notes 9
and 10 as to which the date is March 31, 1997.
 
                                      F-2
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
                          CONSOLIDATED BALANCE SHEETS
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                               December 31
                                                            ------------------
                                                              1996      1995
                                                            --------  --------
<S>                                                         <C>       <C>
                          ASSETS
Current assets:
  Cash and cash equivalents................................ $   29.3  $   16.4
  Accounts receivable, net.................................    505.6     426.8
  Inventories..............................................     44.3      50.1
  Prepaid expenses and other...............................     21.8      21.4
  Deferred income taxes....................................     66.2      63.3
  Income taxes receivable..................................     54.3      21.9
                                                            --------  --------
Total current assets.......................................    721.5     599.9

Property, plant and equipment, net.........................    282.9     304.8
Intangible assets, net.....................................    891.1     916.7
Other assets, net..........................................     21.5      15.8
                                                            --------  --------
                                                            $1,917.0  $1,837.2
                                                            ========  ========
           LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable......................................... $   65.7  $  106.2
  Accrued expenses and other...............................    168.4     173.5
  Current portion of long-term debt........................     18.7      70.8
                                                            --------  --------
Total current liabilities..................................    252.8     350.5

Loan from affiliate........................................    187.0       --
Revolving credit facility..................................    371.0     218.0
Long-term debt, less current portion.......................    693.8     712.5
Capital lease obligation...................................      9.8       9.6
Other liabilities..........................................    144.5     135.0
Stockholders' equity:
  Preferred stock, $0.10 par value; 10,000,000 shares
   authorized; none issued.................................      --        --
  Common stock, $0.01 par value; 220,000,000 shares
   authorized; 122,935,080 and 122,908,722 shares issued
   and outstanding at December 31, 1996 and 1995,
   respectively............................................      1.2       1.2
Additional paid-in capital.................................    411.0     411.0
Accumulated deficit........................................   (154.1)     (0.6)
                                                            --------  --------
    Total stockholders' equity.............................    258.1     411.6
                                                            --------  --------
                                                            $1,917.0  $1,837.2
                                                            ========  ========
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-3
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                     Years Ended December 31,
                                                     --------------------------
                                                       1996      1995     1994
                                                     --------  --------  ------
<S>                                                  <C>       <C>       <C>
Net Sales..........................................  $1,607.7  $1,432.0  $872.5
Cost of sales......................................   1,183.9   1,024.3   597.0
                                                     --------  --------  ------
Gross profit.......................................     423.8     407.7   275.5
Selling, general and administrative expenses.......     305.0     238.5   149.3
Amortization of intangibles and other assets.......      29.6      27.0    16.3
Restructuring and non-recurring charges............      23.0      65.0     --
Provision for settlements and related expenses.....     185.0      10.0     --
                                                     --------  --------  ------
Operating income (loss)............................    (118.8)     67.2   109.9
Other income (expenses):
  Litigation settlement and related expenses.......       --        --    (21.0)
  Investment income................................       2.2       1.4     1.0
  Interest expense.................................     (71.7)    (65.5)  (34.5)
                                                     --------  --------  ------
Earnings (loss) before income taxes and extraordi-
 nary loss.........................................    (188.3)      3.1    55.4
Provision for income taxes.........................     (34.8)      7.1    25.3
                                                     --------  --------  ------
Earnings (loss) before extraordinary loss..........    (153.5)     (4.0)   30.1
                                                     ========  ========  ======
Extraordinary loss from extinguishment of debt, net
 of early
 income tax benefit of $5.2........................       --       (8.3)    --
                                                     --------  --------  ------
Net earnings (loss)................................  $ (153.5) $  (12.3) $ 30.1
                                                     ========  ========  ======
Earnings (loss) per common share:
  Earnings (loss) per common share before
   extraordinary item..............................  $  (1.25) $  (0.03) $ 0.36
  Extraordinary loss per common share..............       --      (0.08)    --
                                                     --------  --------  ------
Net earnings (loss) per common share...............  $  (1.25) $  (0.11) $ 0.36
                                                     ========  ========  ======
Dividends per common share.........................  $    --   $    --   $ 0.08
                                                     ========  ========  ======
</TABLE>
 
 
                See notes to consolidated financial statements.
 
                                      F-4
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
                CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                           Common    Additional            Pension   Minimum
                         Stock $0.01  Paid-in   Retained  Liability  Treasury
                          Par Value   Capital   Earnings  Adjustment  Stock    Total
                         ----------- ---------- --------  ---------- --------  ------
<S>                      <C>         <C>        <C>       <C>        <C>       <C>
Balance, December 31,
 1993...................    $1.0       $226.3   $ 202.0     $(2.4)   $(286.1)  $140.8
  Net earnings..........     --           --       30.1       --         --      30.1
  Exercise of stock
   options..............     --           0.1       --        --         --       0.1
  Dividends to
   stockholders.........     --           --       (6.8)      --         --      (6.8)
  Retirement of treasury
   stock................    (0.2)       (72.3)   (213.6)      --       286.1      --
  Adjustment for minimum
   pension liability....     --           --        --        2.4        --       2.4
  Other.................     --          (0.6)      --        --         --      (0.6)
                            ----       ------   -------     -----    -------   ------
Balance, December 31,
 1994...................     0.8        153.5      11.7       --         --     166.0
  Net loss..............     --           --      (12.3)      --         --     (12.3)
  Exercise of stock
   options..............     --           0.2       --        --         --       0.2
  Cancellation of stock
   options..............     --           6.9       --        --         --       6.9
  Distribution to
   stockholders.........     0.2       (474.5)      --        --         --    (474.7)
  Issuance of common
   stock................     0.6        674.6       --        --         --     675.2
  Issuance of warrants..     --          51.0       --        --         --      51.0
  Other.................     --          (0.7)      --        --         --      (0.7)
                            ----       ------   -------     -----    -------   ------
Balance, December 31,
 1995...................     1.2        411.0      (0.6)      --         --     411.6
  Net loss..............     --           --     (153.5)      --         --    (153.5)
                            ----       ------   -------     -----    -------   ------
Balance, December 31,
 1996...................    $1.2       $411.0   $(154.1)      --         --    $258.1
                            ====       ======   =======     =====    =======   ======
</TABLE>
 
 
                See notes to consolidated financial statements.
 
                                      F-5
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                    Years Ended December 31,
                                                   ----------------------------
                                                     1996      1995      1994
                                                   --------  --------  --------
<S>                                                <C>       <C>       <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net earnings (loss)............................  $ (153.5) $  (12.3) $   30.1
  Adjustments to reconcile net earnings (loss) to
   net cash provided by operating activities:
   Restructuring and non-recurring charges.......      23.0      65.0       --
   Provision for settlements and related
    expenses.....................................     185.0      10.0      21.0
   Extraordinary loss, net of income tax
    benefit......................................       --        8.3       --
   Depreciation and amortization, net............      84.5      72.4      44.4
   Deferred income taxes, net....................      30.3     (21.6)     11.0
   Provision for doubtful accounts, net..........      22.2      12.4      (1.4)
  Change in assets and liabilities, net of
   effects of acquisitions:
   Increase in accounts receivable...............    (102.2)    (58.6)    (54.0)
   Decrease (increase) in inventories............       8.0       5.1      (0.9)
   Decrease (increase) in prepaid expenses and
    other........................................      (3.1)      1.0       5.1
   Change in income taxes receivable/payable,
    net..........................................     (32.4)    (11.7)      5.5
   Increase (decrease) in accounts payable,
    accrued expenses and other...................     (33.4)     27.9     (13.1)
   Payments for restructuring and non-recurring
    charges......................................     (18.8)    (13.4)      --
   Payments for settlement and related expenses..    (188.9)    (32.1)    (29.8)
   Other, net....................................      (7.5)     (5.4)     (3.2)
                                                   --------  --------  --------
Net cash provided by (used for) operating activi-
 ties............................................    (186.8)     47.0      14.7
                                                   --------  --------  --------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Capital expenditures...........................     (54.1)    (75.4)    (48.9)
  Proceeds from sale of subsidiary...............       --        --       10.1
  Acquisitions of businesses.....................      (5.0)    (39.6)   (254.8)
                                                   --------  --------  --------
  Net cash used for investing activities.........     (59.1)   (115.0)   (293.6)
                                                   --------  --------  --------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from revolving credit facilities......  $  293.0  $  308.0  $  308.0
  Payments on revolving credit facilities........    (140.0)   (303.0)   (373.0)
  Proceeds from long-term debt...................       --      800.0     400.0
  Loan from affiliate............................     187.0       --        --
  Payments on long-term debt.....................     (70.8)   (446.7)    (20.0)
  Deferred payments on acquisitions..............     (10.4)    (12.9)     (7.6)
  Dividends paid on common stock.................       --        --      (13.6)
  Distribution to stockholders...................       --     (474.7)      --
  Cash received for issuance of common stock.....       --      135.7       --
  Cash received for issuance of warrants.........       --       51.0       --
  Other..........................................       --        0.2      (0.4)
                                                   --------  --------  --------
  Net cash provided by financing activities......     258.8      57.6     293.4
                                                   --------  --------  --------
  Net increase (decrease) in cash and cash
   equivalents...................................      12.9     (10.4)     14.5
  Cash and cash equivalents at beginning of
   year..........................................      16.4      26.8      12.3
                                                   --------  --------  --------
  Cash and cash equivalents at end of year.......  $   29.3  $   16.4  $   26.8
                                                   ========  ========  ========
</TABLE>
 
                See notes to consolidated financial statements.
 
                                      F-6
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
               CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                    Years Ended December 31,
                                                    --------------------------
                                                     1996     1995      1994
                                                    -------- -------- --------
<S>                                                 <C>      <C>      <C>
Supplemental schedule of cash flow information:
  Cash paid during the period for:
  Interest......................................... $  65.1  $  58.6  $   34.2
  Income taxes.....................................   (15.2)    27.2      14.8
Disclosure of non-cash financing and investing ac-
 tivities:
  Common stock issued in connection with
   acquisition.....................................     --     539.6       --
  Common stock issued in connection with the
   cancellation of employee stock options..........     --       6.9       --
In connection with business acquisitions,
 liabilities were assumed as follows:
  Fair value of assets acquired.................... $  23.4  $ 777.7  $  399.4
  Cash paid........................................    (5.0)   (39.6)   (254.8)
  Stock issued.....................................     --    (539.5)      --
  Liabilities assumed.............................. $  18.4  $ 198.6  $  144.6
                                                    =======  =======  ========
</TABLE>
 
 
                See notes to consolidated financial statements.
 
                                      F-7
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
                  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
BASIS OF PRESENTATION:
 
  Laboratory Corporation of America Holdings is one of the three largest
independent clinical laboratory companies in the United States based on 1996
net revenues. Through a national network of laboratories, the Company offers a
broad range of testing services used by the medical profession in the
diagnosis, monitoring and treatment of disease and other clinical states.
Since its founding in 1971, the Company has grown into a network of 28 major
laboratories and approximately 1,500 service sites consisting of branches,
patient service centers and STAT laboratories, serving clients in 48 states.
 
  The consolidated financial statements include the accounts of Laboratory
Corporation of America Holdings and its subsidiaries ("Company") after
elimination of all material intercompany accounts and transactions. Prior to
April 28, 1995, the Company's name was National Health Laboratories Holdings
Inc. ("NHL"). On April 28, 1995, following approval at a special meeting of
the stockholders of the Company, the name of the Company was changed to
Laboratory Corporation of America Holdings.
 
CASH EQUIVALENTS:
 
  Cash equivalents (primarily investments in money market funds, time deposits
and commercial paper which have original maturities of three months or less at
the date of purchase) are carried at cost which approximates market.
 
INVENTORIES:
 
  Inventories, consisting primarily of laboratory supplies, are stated at the
lower of cost (first-in, first-out) or market.
 
FINANCIAL INSTRUMENTS:
 
  Interest rate swap agreements, which are used by the Company in the
management of interest rate exposure, are accounted for on an accrual basis.
Amounts to be paid or received under such agreements are recognized as
interest income or expense in the periods in which they accrue.
 
PROPERTY, PLANT AND EQUIPMENT:
 
  Property, plant and equipment are recorded at cost. The cost of properties
held under capital leases is equal to the lower of the net present value of
the minimum lease payments or the fair value of the leased property at the
inception of the lease. Depreciation and amortization expense is computed on
all classes of assets based on their estimated useful lives, as indicated
below, using principally the straight-line method.
 
<TABLE>
<CAPTION>
                                                                           Years
                                                                           -----
      <S>                                                                  <C>
      Buildings and building improvements................................. 35-40
      Machinery and equipment.............................................  3-10
      Furniture and fixtures..............................................  5-10
</TABLE>
 
  Leasehold improvements and assets held under capital leases are amortized
over the shorter of their estimated lives or the period of the related leases.
Expenditures for repairs and maintenance charged against earnings in 1996,
1995 and 1994 were $34.2, $28.3 and $16.5, respectively.
 
                                      F-8
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
FAIR VALUE OF FINANCIAL INSTRUMENTS:
 
  Statement of Financial Accounting Standards ("SFAS") No. 107, "Disclosures
About Fair Value of Financial Instruments", requires that fair values be
disclosed for most of the Company's financial instruments. The carrying amount
of cash and cash equivalents, accounts receivable, accounts payable and
accrued expenses are considered to be representative of their respective fair
values. The carrying amount of the revolving credit facility and long-term
debt are considered to be representative of their respective fair values as
their interest rates are based on market rates. The carrying value of the loan
from affiliate is considered to be representative of its fair value due to the
related party nature of the obligation.
 
CONCENTRATION OF CREDIT RISK:
 
  Concentrations of credit risk with respect to accounts receivable are
limited due to the diversity of the Company's clients as well as their
dispersion across many different geographic regions.
 
REVENUE RECOGNITION:
 
  Sales are recognized on the accrual basis at the time test results are
reported, which approximates when services are provided. Services are provided
to certain patients covered by various third-party payor programs including
the Medicare and Medicaid programs. Billings for services under third-party
payor programs are included in sales net of allowances for differences between
the amounts billed and estimated program payment amounts. Adjustments to the
estimated payment amounts based on final settlement with the programs are
recorded upon settlement. In 1996, 1995 and 1994, approximately 23%, 28% and
35%, respectively, of the Company's revenues were derived from tests performed
for beneficiaries of Medicare and Medicaid programs.
 
INCOME TAXES:
 
  The Company accounts for income taxes under SFAS No. 109, "Accounting for
Income Taxes" ("Statement 109"). Under the asset and liability method of
Statement 109, deferred tax assets and liabilities are recognized for the
future tax consequences attributable to differences between the financial
statement carrying amounts of existing assets and liabilities and their
respective tax bases. Deferred tax assets and liabilities are measured using
enacted tax rates expected to apply to taxable income in the years in which
those temporary differences are expected to be recovered or settled. Under
Statement 109, the effect on deferred tax assets and liabilities of a change
in tax rates is recognized in income in the period that includes the enactment
date.
 
STOCK OPTION PLANS:
 
  Prior to January 1, 1996, the Company accounted for its stock option plan in
accordance with the provisions of Accounting Principles Board ("APB") Opinion
No. 25, "Accounting for Stock Issued to Employees", and related
interpretations. As such, compensation expense would be recorded on the date
of grant only if the current market price of the underlying stock exceeded the
exercise price. On January 1, 1996, the Company adopted SFAS No. 123,
"Accounting for Stock-Based Compensation", which permits entities to recognize
as expense over the vesting period the fair value of all stock-based awards on
the date of grant. Alternatively, SFAS No. 123 also allows entities to
continue to apply the provisions of APB Opinion No. 25 and provide pro forma
net income and pro forma earnings per share disclosures for employee stock
option grants made in 1995 and future years as if the fair-value-based method
defined in
 
                                      F-9
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
SFAS No. 123 had been applied. The Company has elected to continue to apply
the provisions of APB Opinion No. 25 and provide the pro forma disclosure
provisions of SFAS No. 123.
 
EARNINGS PER COMMON SHARE:
 
  For the years ended December 31, 1996, 1995 and 1994, earnings per common
share is calculated based on the weighted average number of shares outstanding
during each year (122,919,767, 110,579,096, and 84,754,183 shares,
respectively).
 
USE OF ESTIMATES:
 
  The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reported periods. Actual results could differ from those estimates.
 
IMPAIRMENT OF LONG-LIVED ASSETS AND LONG-LIVED ASSETS TO BE DISPOSED OF:
 
  The Company adopted the provisions of SFAS No. 121, Accounting for the
Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of,
on January 1, 1996. This Statement requires that long-lived assets and certain
identifiable intangibles be reviewed for impairment whenever events or changes
in circumstances indicate that the carrying amount of an asset may not be
recoverable. Recoverability of assets to be held and used is measured by a
comparison of the carrying amount of an asset to future net cash flows
expected to be generated by the asset. If such assets are considered to be
impaired, the impairment to be recognized is measured by the amount by which
the carrying amount of the assets exceed the fair value of the assets. Assets
to be disposed of are reported at the lower of the carrying amount or fair
value less costs to sell. Adoption of this Statement did not have a material
impact on the Company's financial position, results of operations, or
liquidity.
 
  Intangible assets, consisting of goodwill, net of amortization, of $696.1
and $700.1 at December 31, 1996 and 1995, respectively, and other intangibles
(i.e., customer lists and non-compete agreements), net of amortization, of
$195.0 and $216.6 at December 31, 1996 and 1995, respectively, are being
amortized on a straight-line basis over a period of 40 years and 3-25 years,
respectively. Total accumulated amortization for intangible assets aggregated
$116.9 and $87.4 at December 31, 1996 and 1995, respectively.
 
RECLASSIFICATIONS:
 
  Certain amounts in the prior years' financial statements have been
reclassified to conform with the 1996 presentation.
 
2. MERGER AND ACQUISITIONS
 
  In April 1995, the Company completed a merger (the "Merger") with Roche
Biomedical Laboratories, Inc. ("RBL"). In connection with the Merger, the
Company issued 61,329,256 shares of Common Stock to HLR Holdings Inc. ("HLR")
and Roche Holdings Inc. ("Roche") in exchange for all outstanding shares of
RBL and $135.7 in cash. The exchange consideration of approximately $558.0 for
the purchase of RBL consisted of the value of the stock issued to HLR and
Roche, as well as other cash costs of the Merger,
 
                                     F-10
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
net of cash received from HLR. In June 1994, the Company acquired Allied
Clinical Laboratories, Inc. ("Allied") for approximately $191.5 in cash plus
the assumption of $24.0 of Allied indebtedness (the "Allied Acquisition"). The
Allied Acquisition and the Merger have been accounted for under the purchase
method of accounting; as such, the acquired assets and liabilities were
recorded at their estimated fair values on the date of acquisition. RBL's and
Allied's results of operations have been included in the Company's results of
operations since April 28, 1995 and June 23, 1994, respectively.
 
  During 1996, the Company acquired four small clinical laboratory companies
for an aggregate purchase price, including assumption of liabilities, of
$23.4. During 1995 and 1994, the Company acquired nine and eleven
laboratories, respectively, for an aggregate purchase price, including
assumption of liabilities, of $41.7 and $79.3, respectively. The acquisitions
were accounted for as purchase transactions. The excess of cost over the fair
value of net tangible assets acquired during 1996, 1995 and 1994 was $22.5,
$28.2, and $72.1, respectively, which is included under the caption
"Intangible assets, net" in the accompanying consolidated balance sheets. The
consolidated statements of operations reflect the results of operations of
these purchased businesses from dates of acquisition.
 
3. RESTRUCTURING AND NON-RECURRING CHARGES
 
  In the second quarter of 1996, the Company recorded certain charges of a
non-recurring nature including additional charges related to the restructuring
of operations. The Company recorded a restructuring charge totaling $13.0 for
the shutdown of its La Jolla, California administrative facility and other
workforce reductions. This amount includes approximately $8.1 for severance,
$3.5 for the future lease obligation of the La Jolla facility and $1.4 for the
write down of leasehold improvements and fixed assets that will be abandoned
or disposed of. The La Jolla facility was substantially closed by the end of
1996. The remaining workforce reductions took place in other areas of the
Company and were substantially completed by the end of 1996. The net work
force reduction as a result of these activities was approximately 250
employees. Payments for severance are expected to continue through 1997.
 
  In addition, the Company recorded certain non-recurring charges in the
second quarter of 1996 related to further integration after the Merger. The
Company decided to abandon certain data processing systems and therefore wrote
off approximately $6.7 in capitalized software costs. In addition, the Company
relocated its principal drug testing facility to accommodate consolidation of
the RBL and Company operations and will incur approximately $1.3 in costs
primarily related to the write-off of leasehold improvements and building
clean up. Finally, the Company recorded a charge of $2.0 for various other
items including the write-off of certain supplies related to changes in
testing methodologies to increase efficiency. As a result of these changes,
some supplies were not compatible with the new testing methods and were
disposed of.
 
  Following the Merger in 1995, the Company determined that it would be
beneficial to close Company laboratory facilities in certain geographic
regions where duplicate Company and RBL facilities existed at the time of the
Merger. As a result, the Company recorded a restructuring charge of $65.0 in
the second quarter of 1995. As part of the Company's evaluation of its future
obligations under these restructuring activities, certain changes in the
estimates were made during the quarter ended June 30, 1996. These resulted in
the reclassification of certain accruals in the categories listed below
although the total liability did not change. These restructuring activities
have been substantially completed as of December 31, 1996 and have resulted in
a net reduction of approximately 1,600 employees.
 
                                     F-11
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  The following represents the Company's restructuring activities for the
period indicated:
 
<TABLE>   
<CAPTION>
                                                  Asset      Lease and
                                               revaluations    other
                                     Severance  and write-   facility
                                       Costs       offs     obligations Total
                                     --------- ------------ ----------- ------
<S>                                  <C>       <C>          <C>         <C>
Balance at December 31, 1994........  $  --       $  --        $ --     $  --
  Restructuring charges.............    24.2        21.3        19.5      65.0
  Non-cash items....................    (0.3)       (2.7)        --       (3.0)
  Cash payments.....................   (11.1)        --         (0.6)    (11.7)
                                      ------      ------       -----    ------
Balance at December 31, 1995........  $ 12.8      $ 18.6       $18.9    $ 50.3
  Restructuring charges.............     8.1         1.4         3.5      13.0
  Reclassifications.................     1.6         0.7        (2.3)      --
  Non-cash items....................     --        (11.3)        --      (11.3)
  Cash payments.....................   (14.2)        --         (3.2)    (17.4)
                                      ------      ------       -----    ------
Balance at December 31, 1996........  $  8.3      $  9.4       $16.9    $ 34.6
                                      ======      ======       =====    ======
  Current...........................                                    $ 25.5
  Non-current.......................                                       9.1
                                                                        ------
                                                                        $ 34.6
                                                                        ======
</TABLE>    
 
4. ACCOUNTS RECEIVABLE, NET
 
<TABLE>
<CAPTION>
                                                     December 31, December 31,
                                                         1996         1995
                                                     ------------ ------------
   <S>                                               <C>          <C>
   Gross accounts receivable........................   $ 617.2       $517.2
   Less contractual allowances and allowance for
    doubtful accounts...............................    (111.6)       (90.4)
                                                       -------       ------
                                                       $ 505.6       $426.8
                                                       =======       ======
</TABLE>
 
5. PROPERTY, PLANT AND EQUIPMENT, NET
 
<TABLE>
<CAPTION>
                                                      December 31, December 31,
                                                          1996         1995
                                                      ------------ ------------
   <S>                                                <C>          <C>
   Land..............................................   $   9.2      $   7.0
   Buildings and building improvements...............      64.2         54.7
   Machinery and equipment...........................     289.3        268.1
   Leasehold improvements............................      58.3         70.3
   Furniture and fixtures............................      27.0         27.3
   Buildings under capital leases....................       9.6          9.6
                                                        -------      -------
                                                          457.6        437.0
   Less accumulated depreciation and amortization....    (174.7)      (132.2)
                                                        -------      -------
                                                        $ 282.9      $ 304.8
                                                        =======      =======
</TABLE>
 
                                      F-12
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
6. ACCRUED EXPENSES AND OTHER
 
<TABLE>
<CAPTION>
                                                       December 31, December 31,
                                                           1996         1995
                                                       ------------ ------------
   <S>                                                 <C>          <C>
   Employee compensation and benefits.................    $ 49.5       $ 50.5
   Deferred acquisition related payments..............      12.9         14.8
   Acquisition related reserves.......................      17.2         39.4
   Restructuring reserves.............................      25.5         32.3
   Accrued taxes......................................      15.4         14.0
   Interest payable...................................      12.8          7.4
   Other..............................................      35.1         15.1
                                                          ------       ------
                                                          $168.4       $173.5
                                                          ======       ======
</TABLE>
 
7. OTHER LIABILITIES
 
<TABLE>
<CAPTION>
                                                       December 31, December 31,
                                                           1996         1995
                                                       ------------ ------------
   <S>                                                 <C>          <C>
   Deferred acquisition related payments..............    $ 14.8       $  8.5
   Acquisition related reserves.......................      12.3         68.2
   Restructuring reserves.............................       9.1         18.0
   Deferred income taxes..............................      38.7          5.1
   Post-retirement benefit obligation.................      27.0         25.1
   Other..............................................      42.6         10.1
                                                          ------       ------
                                                          $144.5       $135.0
                                                          ======       ======
</TABLE>
 
8. SETTLEMENTS
 
  As previously discussed in the Company's December 31, 1995 10-K, the Office
of Inspector General ("OIG") of Health and Human Services and the Department
of Justice ("DOJ") had been investigating certain past laboratory practices of
the predecessor companies of the Company--NHL, RBL and Allied. On November 21,
1996, the Company reached a settlement with the OIG and the DOJ regarding the
prior billing practices of these predecessor companies (the "1996 Government
Settlement"). Consistent with this overall settlement, the Company paid $187.0
to the Federal Government in December 1996 (the "Settlement Payment") with
proceeds from a loan from Roche (the "Roche Loan"). As a result of
negotiations related to the 1996 Government Settlement, the Company recorded a
charge of $185.0 in the third quarter of 1996 (the "Settlement Charge") to
increase reserves for the 1996 Government Settlement described above, and
other related expenses of government and private claims resulting therefrom.
 
  In the second quarter of 1995, the Company took a pre-tax special charge of
$10.0 in connection with the estimated costs of settling various claims
pending against the Company, substantially all of which were billing disputes
with various third party payors relating to the contention that NHL improperly
included tests for HDL cholesterol and serum ferritin in its basic test
profile without clearly offering an alternative profile that did not include
these medical tests. As of December 31, 1996, the majority of these disputes
have been settled.
 
                                     F-13
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  In the third quarter of 1994, the Company approved a settlement of
previously disclosed shareholder class and derivative litigation. The
litigation consisted of two consolidated class action suits and a consolidated
shareholder derivative action brought in Federal and state courts in San
Diego, California. The settlement involved no admission of wrongdoing. In
connection with the settlement, the Company took a pre-tax special charge of
$15.0 and a $6.0 charge for expenses related to the settled litigation.
Insurance payments and payments from other defendants aggregated $55.0 plus
expenses.
 
9. LONG-TERM DEBT
   
  The Company entered into a credit agreement dated as of April 28, 1995 (the
"Existing Credit Agreement"), with the banks named therein (the "Banks") and
Credit Suisse First Boston, as administrative agent (the "Bank Agent"), under
which the Banks made available to the Company a senior term loan facility of
$800.0 which expires in April 2001 (the "Term Loan Facility") and a revolving
credit facility of $450.0 which expires in April 2000 (the "Revolving Credit
Facility" and, together with the Term Loan Facility, the "Bank Facility"). The
Bank Facility is unconditionally and irrevocably guaranteed by certain of the
Company's subsidiaries.     
 
  As a result of potential defaults under the Existing Credit Agreement,
resulting from, among other things, the Company's performance and higher than
projected debt levels, the Settlement Charge and the Roche Loan, the Company
has obtained several amendments and waivers to the Existing Credit Agreement.
In September 1996, the Company negotiated an amendment (the "Fourth
Amendment") to the Existing Credit Agreement. The Fourth Amendment modified
the interest coverage and leverage ratios applicable to the quarters ending
September 30 and December 31, 1996. The Fourth Amendment also increased the
interest rate margin on its revolving credit facility from 0.25% to 0.875% and
increased the interest rate margin on its term loan facility from 0.375% to
1.00%. As a result of the Settlement Charge in the third quarter of 1996, as
described above, the Company obtained a waiver (the "Third Waiver") which
excluded the special charge from covenant calculations for the periods covered
by the most recent amendment until 30 days after the 1996 Government
Settlement. As a result of the Roche Loan and the 1996 Government Settlement,
the Company negotiated a Fifth Amendment and Fourth Waiver (the "Fifth
Amendment") to the Existing Credit Agreement. The Fifth Amendment extended the
Third Waiver until January 31, 1997 and excluded the Roche Loan from covenant
calculations for the quarters ending December 31, 1996 and March 31, 1997. On
January 27, 1997, the Company negotiated a waiver (the "Fifth Waiver") which
further extended the Third Waiver until March 31, 1997.
 
  In March 1997, the Company entered into the Sixth Amendment and Waiver (the
"Sixth Amendment") which eliminates amortization payments on the Term Loan
Facility for 1997 and modifies the interest coverage and leverage ratios for
the quarterly periods through December 31, 1997. As a result of the Sixth
Amendment certain amounts outstanding under the Revolving Credit Facility and
Term Loan Facility that were classified as current liabilities in the
September 30, 1996 financial statements have been reclassified to long-term
debt in the December 31, 1996 financial statements. Pursuant to this
amendment, the Company paid an amendment fee of 37.5 basis points on
commitments and will pay an additional fee of 62.5 basis points if the Rights
Offering, as described in Note 17, is not completed by June 30, 1997. Under
the Sixth Amendment, maturities under the Term Loan Facility aggregate $243.8,
$162.5, $187.5 and $100.0 in 1998 through 2001, respectively.
 
  In March 1997, the Company also entered into an amended and restated credit
agreement (the "Amended Credit Agreement") which will become effective upon
completion of the Rights Offering following satisfaction of certain conditions
precedent. The Amended Credit Agreement makes available to the Company a term
loan facility of $693.8 (the "Amended Term Loan Facility") and a $450.0
revolving
 
                                     F-14
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
credit facility (the "Amended Revolving Credit Facility"). The Amended
Revolving Credit Facility will include a $50.0 letter of credit sublimit. The
maturities under the Amended Credit Agreement are extended approximately three
years for the Amended Term Loan Facility to March 31, 2004 and approximately
two years for the Amended Revolving Credit Facility to March 31, 2002.
   
  As in the Existing Credit Agreement, both the Amended Term Loan Facility and
the Amended Revolving Credit Facility bear interest, at the option of the
Company, at (i) the base rate plus the applicable base rate margin or (ii) the
eurodollar rate plus the applicable eurodollar rate margin. The Amended Credit
Agreement provides that in the event of a reduction of the percentage of
Common Stock held by Roche Holdings and its affiliates (other than the Company
and its subsidiaries) below 25%, the applicable interest margins and facility
fees on borrowings outstanding under the Amended Credit Agreement will
increase. The amount of the increase will depend, in part, on the leverage
ratio of the Company at the time of such reduction. In addition, pursuant to
the Amended Credit Agreement, the applicable interest margins on borrowings
outstanding thereunder are based upon the leverage ratio.     
 
  Total amortization of the Amended Term Loan Facility for each twelve-month
period following the closing date of the Rights Offering will be reduced
significantly for the first three years, and will be made (in quarterly
installments) in accordance with the following table:
 
<TABLE>
<CAPTION>
      Year                                                                Amount
      ----                                                                ------
      <S>                                                                 <C>
      1997............................................................... $  --
      1998...............................................................    --
      1999...............................................................   50.0
      2000...............................................................  100.0
      2001...............................................................  150.0
      2002...............................................................  150.0
      2003...............................................................  150.0
      3/21/2004..........................................................   93.8
</TABLE>
 
  Conditions precedent to effectiveness of the Amended Credit Agreement
include, without limitation, gross cash proceeds from the Rights Offering in
an aggregate amount equal to at least $250.0, receipt of appropriate
certificates and legal opinions, accuracy in all material respects of
representations and warranties, including absence of material adverse change
in the Company and its subsidiaries (taken as a whole) since December 31,
1996, absence of defaults and material litigation, evidence of authority, and
payment of transaction fees.
 
  The Amended Credit Agreement contains customary covenants similar to, and in
the case of limitations on acquisitions and incurrence of additional debt more
restrictive than, the covenants set forth in the Existing Credit Agreement.
 
  Like the Existing Credit Agreement, the Amended Credit Agreement contains
financial covenants with respect to a leverage ratio, an interest coverage
ratio and minimum stockholders' equity. The covenant levels are less
restrictive than under the Existing Credit Agreement, and will be tested
quarterly.
 
  At December 31, 1996, the Company was a party to interest rate swap
agreements with certain major financial institutions, rated A or better by
Moody's Investor Service, solely to manage its interest rate exposure with
respect to $600.0 of its floating rate debt under the Term Loan Facility. The
agreements effectively changed the interest rate exposure on $600.0 of
floating rate debt to a weighted average fixed interest rate of 6.01%, through
requiring that the Company pay a fixed rate amount in exchange for the
 
                                     F-15
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
financial institutions paying a floating rate amount. Amounts paid by the
Company in 1996 were $2.0. The notional amounts of the agreements are used to
measure the interest to be paid or received and do not represent the amount of
exposure to credit loss. These agreements mature in September 1998. The
estimated cost at which the Company could terminate these agreements as of
December 31, 1996 was approximately $0.9. The fair value was estimated by
discounting the expected cash flows using rates currently available for
interest rate swaps with similar terms and maturities.
 
  In connection with the repayment of existing revolving credit and term loan
facilities in 1995, the Company recorded an extraordinary loss of
approximately $13.5 ($8.3 net of tax), consisting of the write-off of deferred
financing costs, related to the early extinguishment of debt.
 
  Prior to April 28, 1995, the Company had a credit agreement with a group of
banks which provided the Company with a $400.0 term loan facility and a
revolving credit facility of $350.0. This credit agreement provided funds for
the Allied Acquisition, to refinance certain existing debt of Allied and the
Company, and for general corporate purposes. The credit agreement was repaid
in full on April 28, 1995. At December 31, 1994, the Company's effective
borrowing rate on this credit agreement was 8.16%.
 
10. LOAN FROM AFFILIATE
 
  In December 1996, the Company financed the Settlement Payment with the
proceeds of a $187.0 loan from Roche. The promissory note bears interest at
6.625% per annum and was originally due March 31, 1997. In March 1997, the
Company renegotiated the term of the note and it is now due March 31, 1998.
The note is unsecured and ranks pari passu with the Company's bank
obligations. The Company subsequently made the Settlement Payment in December
1996.
 
11. STOCKHOLDERS' EQUITY
 
  In connection with a corporate reorganization on June 7, 1994, all of the
14,603,800 treasury shares held by National Health Laboratories Incorporated
were canceled. As a result, the $286.1 cost of such treasury shares was
eliminated with corresponding decreases in the par value, additional paid-in
capital and retained earnings accounts of $0.2, $72.3 and $213.6,
respectively.
 
12. INCOME TAXES
 
  The provisions for income taxes in the accompanying consolidated statements
of operations consist of the following:
 
<TABLE>
<CAPTION>
                                                      Year Ended December 31,
                                                      --------------------------
                                                        1996     1995     1994
                                                      --------  -------  -------
   <S>                                                <C>       <C>      <C>
   Current:
     Federal......................................... $  (54.4) $  10.4  $  16.2
     State...........................................      2.3      1.5      3.0
                                                      --------  -------  -------
                                                         (52.1)    11.9     19.2
                                                      --------  -------  -------
   Deferred:
     Federal.........................................     15.2     (4.6)     4.9
     State...........................................      2.1     (0.2)     1.2
                                                      --------  -------  -------
                                                          17.3     (4.8)     6.1
                                                      --------  -------  -------
                                                      $  (34.8) $   7.1  $  25.3
                                                      ========  =======  =======
</TABLE>
 
                                     F-16
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                  (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  The effective tax rates on earnings before income taxes is reconciled to
statutory federal income tax rates as follows:
 
<TABLE>
<CAPTION>
                                                 Years Ended December 31,
                                                 -----------------------------
                                                   1996       1995     1994
                                                 --------   --------  --------
   <S>                                           <C>        <C>       <C>
   Statutory federal rate.......................   (35.0)%      35.0%    35.0%
   State and local income taxes, net of federal
    income tax benefit..........................     (3.0)      28.0      4.9
   Non-deductible amortization of intangible
    assets......................................      3.0      166.0      4.9
   Change in valuation allowance................     17.0        --       --
   Other........................................     (0.5)       7.0      0.9
                                                 --------   --------  -------
   Effective rate...............................    (18.5)%    236.0%    45.7%
                                                 ========   ========  =======
 
  The significant components of deferred income tax expense are as follows:
 
<CAPTION>
                                                 Years Ended December 31,
                                                 -----------------------------
                                                   1996       1995     1994
                                                 --------   --------  --------
   <S>                                           <C>        <C>       <C>
   Acquisition related reserves................. $    2.7   $  (17.7) $  (1.2)
   Settlement and related expenses..............      --         8.8      2.5
   Reserve for doubtful accounts................     (9.5)      (4.3)     0.9
   Insurance accrual............................     (1.9)       --       --
   Change in valuation allowance................     32.0        --       --
   Other........................................     (6.0)       8.4      3.9
                                                 --------   --------  -------
                                                    $17.3   $   (4.8) $   6.1
                                                 ========   ========  =======
</TABLE>
 
                                      F-17
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  The tax effects of temporary differences that give rise to significant
portions of the deferred tax assets and deferred tax liabilities at December
31, 1996 and 1995 are as follows:
 
<TABLE>
<CAPTION>
                                                     December 31, December 31,
                                                         1996         1995
                                                     ------------ ------------
   <S>                                               <C>          <C>
   Deferred tax assets:
     Settlement and related expenses, principally
      due to accrual for financial reporting
      purposes......................................    $ 19.2       $  1.8
     Accounts receivable, principally due to
      allowance for doubtful accounts...............      31.1         21.9
     Self insurance reserves, principally due to
      accrual for financial reporting purposes......       7.9          4.8
     Postretirement benefit obligation, principally
      due to accrual for financial reporting
      purposes......................................      10.7          9.9
     Compensated absences, principally due to
      accrual for financial reporting purposes......       --           --
     Acquisition related reserves, principally due
      to accrual for financial reporting purposes...      43.1         81.0
     State net operating loss carryforwards.........      11.8          7.4
     Other..........................................      18.1         13.7
                                                        ------       ------
                                                         141.9        140.5
       Less valuation allowance.....................     (32.0)         --
                                                        ------       ------
       Net deferred tax asset.......................     109.9        140.5
   Deferred tax liabilities:
     Intangible assets, principally due to
      differences in amortization...................     (60.2)       (59.5)
     Property, plant and equipment, principally due
      to differences in depreciation................     (20.9)       (16.4)
     Other..........................................      (1.3)        (6.4)
                                                        ------       ------
       Total gross deferred tax liabilities.........     (82.4)       (82.3)
                                                        ------       ------
   Net deferred tax asset...........................    $ 27.5       $ 58.2
                                                        ======       ======
</TABLE>
   
  There was no valuation allowance for deferred tax assets as of December 31,
1995 and 1994. At December 31, 1996 the valuation allowance for deferred tax
assets was $32.0. Realization of the deferred tax assets related to the state
net operating loss carryforwards, the postretirement benefit obligation as
well as certain other temporary differences is considered uncertain, and
therefore a valuation allowance has been established for these items. The
Company believes that it is more likely than not that the results of future
operations and carryback availability will generate sufficient taxable income
to realize the remaining deferred tax assets.     
 
13. STOCK OPTIONS
   
  The Company has adopted the 1997 Employee Stock Purchase Plan (the "1997
Stock Plan") which became effective January 1, 1997. Under the 1997 Stock
Plan, eligible employees may purchase shares of the Company's common stock
based on compensation through payroll deductions. The purchase price is the
lower of 85% of the fair market value of the common stock on the first or last
day of the purchase period. There was no activity under the plan in 1996.     
 
                                     F-18
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  In 1988, the Company adopted the 1988 Stock Option Plan, reserving 2,000,000
shares of common stock for issuance pursuant to options and stock appreciation
rights that may be granted under the plan. The Stock Option Plan was amended
in 1990 to limit the number of options to be issued under the Stock Option
Plan to 550,000 in the aggregate (including all options previously granted).
In 1991, the number of shares authorized for issuance under the Stock Option
Plan was increased to an aggregate of 2,550,000.
 
  In 1994, the Company adopted the 1994 Stock Option Plan, reserving 3,000,000
shares of common stock for issuance pursuant to options and stock appreciation
rights that may be granted under the plan.
   
  In connection with the Merger, all options outstanding as of December 13,
1994 became vested and employees were given the choice to (i) cancel options
outstanding as of December 13, 1994 and receive cash and shares of common
stock according to a formula included in the merger agreement or (ii) convert
such options into new options based on a formula included in the merger
agreement. The amount of cash and shares of common stock issued was equal to
the product of (i) the number of shares of common stock subject to such
options submitted for cancellation and (ii) the excess of (1) $18.50 over (2)
the per share exercise price of such options (such product, the "Option Value
Amount"). The Option Value Amount was paid as follows: 40% of such amount was
paid in cash, and 60% of such amount (the "Option Stock Amount") was paid in
the number of shares of common stock obtained by dividing the Option Stock
Amount by $15.42. In connection with the cancellation of stock options, the
Company paid a total of $5.5 in cash and issued 538,307 shares of common stock
to option holders. The value of such amounts were considered transaction costs
of the merger and included in the purchase price of the acquired entity. Also,
a total of 562,532 options were reissued as a result of option conversions at
exercise prices between $11.293 and $16.481.     
   
  At December 31, 1996, there were 3,427,316 additional shares available for
grant under the Company's Stock Option Plans. There were no options granted in
1996. The per share weighted-average fair value of stock options granted
during 1995 was $8.54 per share on the date of grant using the Black Scholes
option-pricing model assuming a volatility of 0.4243 and the following
weighted-average assumptions: --expected dividend yield 0.0%, risk-free
interest rate of 6.86%, and an expected life of ten years.     
 
  The Company applies the provisions of APB Opinion No. 25 in accounting for
its Plan and, accordingly, no compensation cost has been recognized for its
stock options in the financial statements. Had the Company determined
compensation cost based on the fair value at the grant date for its stock
options under SFAS No. 123, the Company's net income would have been reduced
to the pro forma amounts indicated below:
 
<TABLE>
<CAPTION>
                                                                 Years Ended
                                                                 December 31,
                                                                ---------------
                                                                 1996     1995
                                                                -------  ------
   <S>                                                          <C>      <C>
   Net loss
     As reported............................................... $(153.5) $(12.3)
     Pro forma.................................................  (154.7)  (14.5)
   Earnings per share
     As reported............................................... $ (1.25) $(0.11)
     Pro forma.................................................   (1.26)  (0.13)
</TABLE>
 
                                     F-19
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  Pro forma net income reflects only options granted in 1996 and 1995.
Therefore, the full impact of calculating compensation cost for stock options
under SFAS No. 123 is not reflected in the pro forma net income amounts
presented above because compensation cost is reflected over the options
vesting period of two years and compensation cost for options granted prior to
January 1, 1995 is not considered.
 
  The following table summarizes grants of non-qualified options made by the
Company to officers and key employees under both plans. Stock options are
generally granted at an exercise price equal to or greater than the fair
market price per share on the date of grant. Also, for each grant, one-third
of the options vested on the date of grant and one-third vest on each of the
first and second anniversaries of such date, subject to their earlier
expiration or termination.
 
  Changes in options outstanding under the plans for the periods indicated
were as follows:
 
<TABLE>
<CAPTION>
                                                               Weighted Average
                                                  Number of   Exercise Price per
                                                   Options          Option
                                                  ----------  ------------------
   <S>                                            <C>         <C>
   Outstanding at January 1, 1994................  1,564,336       $17.366
     Granted.....................................  2,042,000       $12.600
     Exercised...................................    (11,125)      $ 7.717
     Canceled or expired.........................    (92,498)      $16.649
                                                  ----------
   Outstanding at December 31, 1994..............  3,502,713       $14.637
     Granted.....................................  1,378,000       $13.000
     Merger-related grants.......................    562,532       $15.870
     Exercised...................................    (20,542)      $10.297
     Merger-related cancellations................ (3,459,167)      $14.653
     Canceled or expired.........................   (222,291)      $14.816
                                                  ----------
   Outstanding at December 31, 1995..............  1,741,245       $14.637
     Canceled or expired.........................   (443,027)      $14.104
                                                  ----------
     Outstanding at December 31, 1996............  1,298,218       $14.637
                                                  ==========
   Exercisable at December 31, 1996..............    993,429       $13.748
                                                  ==========
</TABLE>
 
  The weighted average remaining life of options outstanding at December 31,
1996 is approximately 8.4 years.
 
14. COMMITMENTS AND CONTINGENCIES
 
  The Company is involved in certain claims and legal actions arising in the
ordinary course of business. In the opinion of management, based upon the
advice of counsel, the ultimate disposition of these matters will not have a
material adverse effect on the financial position or results of operations of
the Company.
 
  Under the Company's present insurance programs, coverage is obtained for
catastrophic exposures as well as those risks required to be insured by law or
contract. The Company is responsible for the uninsured portion of losses
related primarily to general, product and vehicle liability and workers'
compensation. The self-insured retentions are on a per occurrence basis
without any aggregate annual limit. Provisions for losses expected under these
programs are recorded based upon the Company's estimates of the aggregated
liability of claims incurred. At December 31, 1996 and 1995, the Company had
provided letters of credit aggregating approximately $17.6 and $8.6,
respectively, primarily in connection with certain insurance programs.
 
  During 1991, the Company guaranteed a $9.0, five-year loan to a third party
for construction of a new laboratory to replace one of the Company's existing
facilities. Following its completion in November of
 
                                     F-20
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
1992, the building was leased to the Company by this third party. Such
transaction is treated as a capital lease for financial reporting purposes.
The associated lease term continues for a period of 15 years, expiring in
2007. Under the terms of this guarantee, as modified, the Company is required
to maintain 105% of the outstanding loan balance including any overdue
interest as collateral in a custody account established and maintained at the
lending institution. As of December 31, 1996 and 1995, the Company had placed
$9.5 of investments in the custody account. Such investments are included
under the caption "Other assets, net" in the accompanying consolidated balance
sheets.
 
  The Company does not anticipate incurring any loss as a result of this loan
guarantee due to protection provided by the terms of the lease. Accordingly,
the Company, if required to repay the loan upon default of the borrower (and
ultimate lessor), is entitled to a rent abatement equivalent to the amount of
repayment made by the Company on the borrower's behalf, plus interest thereon
at a rate equal to 2% over the prime rate.
 
  The Company leases various facilities and equipment under non-cancelable
lease arrangements. Future minimum rental commitments for leases with
noncancellable terms of one year or more at December 31, 1996 are as follows:
 
<TABLE>
<CAPTION>
                                                             Operating Capital
                                                             --------- -------
   <S>                                                       <C>       <C>
   1997.....................................................    44.9      1.6
   1998.....................................................    36.3      1.7
   1999.....................................................    29.4      1.8
   2000.....................................................    24.2      1.9
   2001.....................................................    16.5      2.0
   Thereafter...............................................    65.9     13.1
                                                              ------    -----
   Total minimum lease payments.............................   217.2     22.1
   Less amount representing interest........................     --      12.3
                                                              ------    -----
   Total minimum operating lease payments and present value
    of minimum capital lease payments.......................  $217.2    $ 9.8
                                                              ======    =====
</TABLE>
 
  Rental expense, which includes rent for real estate, equipment and
automobiles under operating leases, amounted to $70.6, $60.4 and $34.6 for the
years ended December 31, 1996, 1995 and 1994, respectively.
 
15. PENSION AND POSTRETIREMENT PLANS
 
  The Company maintains a defined contribution pension plan for all eligible
employees. Eligible employees are defined as individuals who are age 21 or
older and have been employed by the Company for at least six consecutive
months and completed 1,000 hours of service. Company contributions to the plan
are based on a percentage of employee contributions. The cost of this plan was
$7.5, $5.8, and $3.6 in 1996, 1995, and 1994, respectively.
 
  In addition, substantially all employees of the Company are covered by a
defined benefit retirement plan (the "Company Plan"). The benefits to be paid
under the Company Plan are based on years of credited service and average
final compensation.
 
  Effective December 31, 1994, the Company adopted certain amendments to the
Company Plan which resulted in a decrease of approximately $9.5 in the
projected benefit obligation.
 
                                     F-21
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
  Under the requirements of SFAS No. 87, "Employers Accounting for Pensions",
the Company recorded an additional minimum pension liability representing the
excess accumulated benefit obligation over plan assets at December 31, 1993. A
corresponding amount was recognized as an intangible asset to the extent of
unrecognized prior service cost, with the balance recorded as a separate
reduction of stockholders' equity.
 
  The Company recorded an additional liability of $3.0, an intangible asset of
$0.6, and a reduction of stockholders' equity of $2.4. Such amounts were
eliminated as a result of the amendments to the Company Plan effective
December 31, 1994.
 
  In connection with the Merger, the Company assumed obligations under the RBL
defined benefit pension plan ("RBL Plan"). Effective July 1, 1995, the plan
was amended to provide benefits similar to the Company Plan, as amended.
Certain employees of RBL were grandfathered so that their benefits were not
affected by the amendment. On January 1, 1996, the two plans were merged.
 
  The Company's policy is to fund the Company Plan with at least the minimum
amount required by applicable regulations. The components of net periodic
pension cost for each of the RBL plans are summarized as follows:
 
<TABLE>
<CAPTION>
                                              Company Plan            RBL Plan
                                        --------------------------- ------------
                                                                    Eight months
                                                                       ended
                                        Years ended December 31,    December 31,
                                        --------------------------- ------------
                                          1996     1995     1994        1995
                                        --------  -------- -------- ------------
<S>                                     <C>       <C>      <C>      <C>
Service cost........................... $   10.3  $   3.2  $   5.5     $ 2.6
Interest cost..........................      7.0      2.7      3.5       2.3
Actual return on plan assets...........    (11.9)    (7.6)     0.1      (4.3)
Net amortization and deferral..........      3.3      4.2     (1.4)      1.2
                                        --------  -------  -------     -----
Net periodic pension cost.............. $    8.7  $   2.5  $   7.7     $ 1.8
                                        ========  =======  =======     =====
</TABLE>
 
  The status of the plans are as follows:
 
<TABLE>
<CAPTION>
                                                   Company Plan     RBL Plan
                                                   -------------  ------------
                                                   December 31,   December 31,
                                                   -------------  ------------
                                                    1996   1995       1995
                                                   ------  -----  ------------
<S>                                                <C>     <C>    <C>
Actuarial present value of benefit obligations:
  Vested benefits................................. $ 86.2  $36.2     $38.8
  Non-vested benefits.............................   11.2    4.4       6.4
                                                   ------  -----     -----
Accumulated benefit obligation....................   97.4   40.6      45.2
Effect of projected future salary increases.......    6.3    2.2       1.6
                                                   ------  -----     -----
Projected benefit obligation......................  103.7   42.8      46.8
Fair value of plan assets, principally corporate
 equity securities and fixed income investments...   96.2   40.8      46.6
                                                   ------  -----     -----
Unfunded projected benefit obligation.............    7.5    2.0       0.2
Unrecognized prior service cost...................   17.4    6.6      12.7
Unrecognized net loss.............................  (14.9)  (7.1)     (9.4)
                                                   ------  -----     -----
Accrued pension cost.............................. $ 10.0  $ 1.5     $ 3.5
                                                   ======  =====     =====
</TABLE>
 
 
                                     F-22
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
  Assumptions used in the accounting for the plans were as follows:
 
<TABLE>
<CAPTION>
                                                      Company Plan    RBL Plan
                                                      --------------  --------
                                                       1996    1995     1995
                                                      ------  ------  --------
   <S>                                                <C>     <C>     <C>
   Weighted average discount rate....................   7.75%   7.5%    7.5%
   Weighted average rate of increase in future
    compensation levels..............................    4.0%   4.0%    5.4%
   Weighted average expected long-term rate of
    return...........................................    9.0%   9.0%    9.5%
</TABLE>
 
  In addition, the Company assumed obligations under RBL's postretirement
medical plan effective with the Merger. Effective July 1, 1995, coverage under
the plan was restricted to certain existing RBL employees. This plan is
unfunded and the Company's policy is to fund benefits as claims are incurred.
The components of postretirement benefit expense are as follows:
 
<TABLE>
<CAPTION>
                                                                    Eight months
                                                        Year Ended     ended
                                                       December 31, December 31,
                                                           1996         1995
                                                       ------------ ------------
   <S>                                                 <C>          <C>
   Service cost.......................................     $0.9         $1.1
   Interest cost......................................      1.4          1.4
                                                           ----         ----
   Postretirement benefit costs.......................     $2.3         $2.5
                                                           ====         ====
</TABLE>
 
  The status of the plan is as follows:
 
<TABLE>
<CAPTION>
                                                                 December 31,
                                                                 --------------
                                                                  1996    1995
                                                                 ------  ------
   <S>                                                           <C>     <C>
   Accumulated postretirement benefit obligation................  $28.6   $27.2
   Unrecognized net loss........................................   (1.6)   (2.1)
                                                                 ------  ------
   Accrued postretirement benefit obligation.................... $ 27.0  $ 25.1
                                                                 ======  ======
</TABLE>
 
  The weighted average discount rate used in the calculation of the
accumulated postretirement benefit obligation and the net postretirement
benefit cost was 7.85% and 7.6%, respectively. The health care cost trend rate
was assumed to be 8.5%, declining gradually to 5.0% in the year 2006,
remaining level thereafter. The health care cost trend rate has a significant
effect on the amounts reported. To illustrate, a one percentage point increase
in the assumed health care cost trend rate would increase the accumulated
postretirement benefit obligation as of December 31, 1996 by approximately
$5.2, and the aggregate of the service and interest components of 1996 net
periodic postretirement benefit cost by approximately $0.5.
 
16. QUARTERLY DATA (UNAUDITED)
 
  The following is a summary of unaudited quarterly data:
 
<TABLE>
<CAPTION>
                                          Year ended December 31, 1996
                            ---------------------------------------------------------
                            1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Full Year
                            ----------- ----------- ----------- ----------- ---------
   <S>                      <C>         <C>         <C>         <C>         <C>
   Net Sales...............   $403.9      $410.0      $ 402.6     $391.2    $1,607.7
   Gross Profit............    100.6       109.5        102.5      111.2       423.3
   Net earnings............      5.9       (14.2)      (146.4)       1.2      (153.5)
   Earnings per common
    share..................     0.05       (0.12)       (1.19)      0.01       (1.25)
</TABLE>
 
                                     F-23
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
 
<TABLE>
<CAPTION>
                                          Year ended December 31, 1995
                            ---------------------------------------------------------
                            1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Full Year
                            ----------- ----------- ----------- ----------- ---------
   <S>                      <C>         <C>         <C>         <C>         <C>
   Net sales...............   $243.8      $367.3      $417.5      $403.4    $1,432.0
   Gross profit............     79.5       108.9       117.8       101.5       407.7
   Earnings (loss) before
    extraordinary item.....     12.8       (31.6)       14.4         0.4        (4.0)
   Extraordinary item......      --         (8.3)        --          --         (8.3)
   Net earnings (loss).....     12.8       (39.9)       14.4         0.4       (12.3)
   Earnings (loss) per
    common share before
    extraordinary loss.....     0.15       (0.28)       0.12         --        (0.03)
   Extraordinary loss per
    common share...........      --        (0.08)        --          --        (0.08)
   Earnings (loss) per
    common share...........     0.15       (0.36)       0.12         --        (0.11)
</TABLE>
 
  In the third quarter of 1996, the Company recorded a charge of $185.0 to
increase reserves related to the 1996 Government Settlement and other related
expenses of government and private claims resulting therefrom.
 
  In the second quarter of 1996, the Company recorded a charge of $23.0
relating to the shutdown of its La Jolla administrative facility and other
non-recurring charges. In addition, the company recorded an additional $10.0
provision for doubtful accounts which was based on the Company's determination
that additional reserves were needed, based on trends that became evident in
the second quarter, for lower collection rates primarily from Medicare.
 
  In the fourth quarter of 1995, the Company recorded an additional $15.0 of
provision for doubtful accounts which reflects the Company's determination,
based on trends that became evident in the fourth quarter, that additional
reserves were needed primarily to cover potentially lower collection rates
from several third-party payors.
 
  In the second quarter of 1995, the Company took a pre-tax special charge of
$65.0 to cover the costs of the restructuring plan related to the Merger. The
charge includes approximately $24.2 to reduce the workforce, $21.3 to reduce
certain assets to their net realizable values, and $19.5 for lease and other
facility obligations. Also in the second quarter of 1995, the Company took a
pre-tax special charge of $10.0 in connection with the estimated costs of
settling various claims pending against the Company, substantially all of
which are billing disputes, in which the Company believes it is probable that
settlements will be made by the Company.
 
  In connection with the repayment of existing revolving credit and term loan
facilities, the Company recorded an extraordinary loss of approximately $13.5
($8.3 net of tax) in the second quarter of 1995, consisting of the write-off
of deferred financing costs, related to the early extinguishment of debt.
 
17. SUBSEQUENT EVENT (UNAUDITED)
 
  In February 1997, the Company filed a registration statement with the
Securities and Exchange Commission (the "Commission") relating to the proposed
offering of an aggregate of $500.0 of convertible preferred stock issuable in
two series pursuant to transferable subscription rights to be granted on a pro
 
                                     F-24
<PAGE>
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
            NOTES TO CONSOLIDATED FINANCIAL STATEMENTS--(CONTINUED)
 
                 (DOLLARS IN MILLIONS, EXCEPT PER SHARE DATA)
 
rata basis to each stockholder of the Company (the "Rights Offering"). Rights
holders who exercise their rights in full will also be entitled to subscribe
for additional shares of preferred stock issuable pursuant to any unexercised
rights.
   
  The subscription rights will give the holder thereof the option to purchase
one of two series of preferred stock, each of which will be convertible at the
option of the holder into common stock. One series will pay cash dividends and
will be exchangeable at the Company's option for convertible subordinated
notes due 2012. The other series will pay dividends in kind and will not be
exchangeable for notes. Each series of preferred stock will be mandatorily
redeemable in 2012 and will be redeemable at the option of the Company after
three years.     
   
  The Company has recently been contacted by representatives of certain
insurance companies, and individuals in a purported class action, who have
asserted claims for private reimbursement which are similar to the Government
claims recently settled. The Company is carefully evaluating these claims and
although there can be no assurance, based upon the information currently
available to it, management does not believe that the ultimate outcome of
these claims will have a material adverse effect on its financial condition.
However, due to the early stage of such claims, management cannot make an
estimate of loss or predict whether or not such claims will have a material
adverse effect on the Company's results of operations in any particular
period.     
 
                                     F-25
<PAGE>
 
                                                                     SCHEDULE II
 
          LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
 
                 VALUATION AND QUALIFYING ACCOUNTS AND RESERVES
 
                  YEARS ENDED DECEMBER 31, 1996, 1995 AND 1994
                             (DOLLARS IN MILLIONS)
 
<TABLE>
<CAPTION>
                         Balance at              Charged to    Other
                         beginning               costs and  (Deductions) Balance at
                          of year   Acquisitions  expenses   Additions   end of year
                         ---------- ------------ ---------- ------------ -----------
<S>                      <C>        <C>          <C>        <C>          <C>
Year ended December 31,
 1996:
  Applied against asset
   accounts:
  Contractual allowances
   and allowance for
   doubtful accounts....   $904.0      $ 0.0       $148.8     $(127.6)     $111.6
                           ======      =====       ======     =======      ======
Year ended December 31,
 1995:
  Applied against asset
   accounts:
  Contractual allowances
   and allowance for
   doubtful accounts....   $ 65.3      $33.2       $147.6     $(155.7)     $ 90.4
                           ======      =====       ======     =======      ======
Year ended December 31,
 1994
  Applied against asset
   accounts:
  Contractual allowances
   and allowance for
   doubtful accounts....   $ 51.0      $18.5       $ 91.5     $ (95.7)     $ 65.3
                           ======      =====       ======     =======      ======
</TABLE>
 
                                      F-26
<PAGE>
 
- -------------------------------------------------------------------------------
 
NO DEALER, SALESMAN OR ANY OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFOR-
MATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED OR INCORPORATED BY REFER-
ENCE IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESEN-
TATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE COMPANY OR THE
DEALER MANAGER. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SO-
LICITATION OF AN OFFER TO BUY ANY OF THE SECURITIES OFFERED HEREBY IN ANY JU-
RISDICTION TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH AN OFFER IN SUCH
JURISDICTION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE HERE-
UNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THE INFORMA-
TION CONTAINED HEREIN IS CORRECT AS OF ANY DATE SUBSEQUENT TO THE DATE HEREOF
OR THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF THE COMPANY SINCE SUCH
DATE.
 
                                ---------------
 
                               TABLE OF CONTENTS
 
<TABLE>   
<CAPTION>
                                                                          PAGE
                                                                          ----
<S>                                                                       <C>
Prospectus Summary.......................................................   4
Risk Factors.............................................................  20
Use of Proceeds..........................................................  28
Common Stock Price Range.................................................  28
Dividend Policy..........................................................  28
Capitalization...........................................................  29
Unaudited Pro forma Financial Statements.................................  30
Selected Historical Financial Data.......................................  37
Management's Discussion and Analysis of Financial Condition and Results
 of Operations...........................................................  40
Business.................................................................  51
Regulation and Reimbursement.............................................  65
Management...............................................................  71
Ownership of Capital Stock...............................................  74
Certain Relationships and Related Transactions...........................  75
Description of the Amended Credit Agreement..............................  78
Description of Rights Offering...........................................  80
Description of Capital Stock.............................................  86
Description of Preferred Stock...........................................  88
Description of the Notes.................................................  97
Certain Federal Income Tax Consequences.................................. 103
Plan of Distribution..................................................... 108
Legal Matters............................................................ 108
Experts.................................................................. 109
Available Information.................................................... 109
Incorporation of Certain Documents by Reference.......................... 110
Index to Financial Statements............................................ F-1
</TABLE>    
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                            LABORATORY CORPORATION
                              OF AMERICA HOLDINGS
 
                               10,000,000 Shares
 
                            % Series A Convertible
                                 Exchangeable
                                Preferred Stock
                                      or
                            % Series B Convertible
                                  Pay-in-Kind
                                Preferred Stock
 
                                  PROSPECTUS
                           
                        CREDIT SUISSE FIRST BOSTON     
 
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART II
 
                    INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 14. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
   
  The following table sets forth the fees and expenses payable by the Company
in connection with the Rights Offering other than dealer manager and
solicitation fees. All of such expenses except the Securities and Exchange
Commission registration fee and the NASD filing fee are estimated:     
 
<TABLE>   
   <S>                                                               <C>
   Securities and Exchange Commission registration fee.............. $  250,970
   NASD filing fee..................................................     30,500
   NYSE listing fee.................................................     47,800
   Printing expense.................................................     60,000
   Accounting fees and expenses.....................................     75,000
   Legal fees and expenses..........................................  1,100,000
   Miscellaneous....................................................    435,730
                                                                     ----------
   Total............................................................ $2,000,000
                                                                     ==========
</TABLE>    
 
ITEM 15. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
  Reference is made to Section 102(b)(7) of the Delaware General Corporation
Law (the "DGCL"), which enables a corporation in its original certificate of
incorporation or an amendment thereto to eliminate or limit the personal
liability of a director for violations of the director's fiduciary duty,
except (i) for any breach of the director's duty of loyalty to the corporation
or its stockholders, (ii) for acts or omissions not in good faith or which
involve intentional misconduct or a knowing violation of law, (iii) pursuant
to Section 174 of the DGCL (providing for liability of directors for the
unlawful payment of dividends or unlawful stock purchases or redemptions) or
(iv) for any transaction from which a director derived an improper personal
benefit.
 
  Section 145 of the DGCL empowers the Company to indemnify, subject to the
standards set forth therein, any person in connection with any action, suit or
proceeding brought before or threatened by reason of the fact that the person
was a director, officer, employee or agent of such company, or is or was
serving as such with respect to another entity at the request of such company.
The DGCL also provides that the Company may purchase insurance on behalf of
any such director, officer, employee or agent.
 
  The Company's Certificate of Incorporation provides in effect for the
indemnification by the Company of each director and officer of the Company to
the fullest extent permitted by applicable law.
 
ITEM 16. EXHIBITS
 
  See index to exhibits at E-1.
 
ITEM 17. UNDERTAKINGS
 
  The undersigned registrant hereby undertakes:
 
    (1) To file, during any period in which offers or sales are being made, a
  post-effective amendment to this registration statement;
 
      (i) To include any prospectus required by Section 10(a)(3) of the
    Securities Act of 1933;
 
                                     II-1
<PAGE>
 
      (ii) To reflect in the prospectus any facts or events arising after
    the effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the
    aggregate, represent a fundamental change in the information set forth
    in the registration statement. Notwithstanding the foregoing, any
    increase or decrease in volume of securities offered (if the total
    dollar value of securities offered would not exceed that which was
    registered) and any deviation from the low or high end of the estimated
    maximum offering range may be reflected in the form of prospectus filed
    with the Commission pursuant to Rule 424(b) if, in the aggregate, the
    changes in volume and price represent no more than a 20 percent change
    in the maximum aggregate offering price set forth in the "Calculation
    of Registration Fee" table in the effective registration statement.
 
      (iii) To include any material information with respect to the plan of
    distribution not previously disclosed in the registration statement or
    any material change to such information in the registration statement;
 
  provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if
  the registration statement is on Form S-3, Form S-8 or Form F-3, and the
  information required to be included in a post-effective amendment by those
  paragraphs is contained in periodic reports filed with or furnished to the
  Commission by the registrant pursuant to Section 13 or 15(d) of the
  Securities Exchange Act of 1934 that are incorporated by reference in the
  registration statement.
 
    (2) That, for the purpose of determining any liability under the
  Securities Act of 1933, each such post-effective amendment shall be deemed
  to be a new registration statement relating to the securities offered
  therein, and the offering of such securities at that time shall be deemed
  to be the initial bona fide offering thereof.
 
    (3) To remove from registration by means of a post-effective amendment
  any of the securities being registered which remain unsold at the
  termination of the offering.
 
  The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to Section 13(a) or 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
  Insofar as indemnification for liabilities arising under the Securities Act
of 1933 may be permitted to directors, officers and controlling persons of the
registrant pursuant to the provisions described in Item 15 above or otherwise,
the registrant has been advised that in the opinion of the Commission such
indemnification is against public policy as expressed in the Securities Act of
1933 and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
registrant of expenses incurred or paid by a director, officer or controlling
person of the registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities registered, the registrant will, unless in the
opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities
Act of 1933 and will be governed by the final adjudication of such issue.
 
                                     II-2
<PAGE>
 
   
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THE REGISTRANT
CERTIFIES THAT IT HAS REASONABLE GROUNDS TO BELIEVE THAT IT MEETS ALL OF THE
REQUIREMENTS FOR FILING ON FORM S-3 AND HAS DULY CAUSED THIS AMENDMENT TO BE
SIGNED ON ITS BEHALF BY THE UNDERSIGNED, THEREUNTO DULY AUTHORIZED, IN THE
CITY OF BURLINGTON, STATE OF NORTH CAROLINA, ON MAY 6, 1997.     
 
                                          LABORATORY CORPORATION OF AMERICA
                                           HOLDINGS
 
                                                  /s/ Thomas P. Mac Mahon
                                          By: _________________________________
                                                    THOMAS P. MAC MAHON
                                             CHAIRMAN OF THE BOARD, PRESIDENT
                                                            AND
                                                  CHIEF EXECUTIVE OFFICER
 
  PURSUANT TO THE REQUIREMENTS OF THE SECURITIES ACT OF 1933, THIS AMENDMENT
HAS BEEN SIGNED BY THE FOLLOWING PERSONS IN THE CAPACITIES AND ON THE DATES
INDICATED.
 
              SIGNATURE                        TITLE                 DATE
 
       /s/ Thomas P. Mac Mahon         Chairman of the              
- -------------------------------------   Board, President,        May 6, 1997
         THOMAS P. MAC MAHON            Chief Executive                  
                                        Officer and
                                        Director
 
                  *                    Executive Vice               
- -------------------------------------   President, Chief         May 6, 1997
         WESLEY R. ELINGBURG            Financial Officer                
                                        and Treasurer
                                        (Principal
                                        Accounting and
                                        Financial Officer)
 
                  *                    Director                     
- -------------------------------------                            May 6, 1997
         JEAN-LUC BELINGARD                                              
 
                  *                    Director                     
- -------------------------------------                            May 6, 1997
            WENDY E. LANE                                                
 
                  *                    Director                     
- -------------------------------------                            May 6, 1997
     ROBERT E. MITTELSTAEDT, JR.                                         
 
                  *                    Director                     
- -------------------------------------                            May 6, 1997
        JAMES B. POWELL, M.D.                                            
 
                  *                    Director                     
- -------------------------------------                            May 6, 1997
       DAVID B. SKINNER, M.D.                                            
 
                  *                    Director                     
- -------------------------------------                            May 6, 1997
       ANDREW G. WALLACE, M.D.                                           
 
        /s/ Thomas P. Mac Mahon
*By: ________________________________
         THOMAS P. MAC MAHON
          ATTORNEY-IN-FACT
<PAGE>
 
                               INDEX TO EXHIBITS
 
<TABLE>   
<CAPTION>
                                                                  Sequentially
 Exhibit No.                     Description                      Numbered Page
 -----------                     -----------                      -------------
 <C>         <S>                                                  <C>
  1.1        Form of Dealer Manager Agreement
  4.1        Form of Certificate of Designation of the Series A
             Exchangeable Preferred Stock**
  4.2        Form of Certificate of Designation of the Series B
             PIK Preferred Stock**
  4.3        Form of Indenture
  4.4        Form of Note (included in Exhibit 4.3 hereto)
  4.5        Form of Rights Certificate**
  4.6        Form of Amendment to Stockholders Agreement dated
             as of April 28, 1995 among HLR, Roche Holdings,
             Hoffmann-La Roche Inc. and the Company
  5.1        Opinion of Davis Polk & Wardwell
  8.1        Opinion of Davis Polk & Wardwell (re: tax matters)
 12.1        Statement regarding Computation of Ratio of
             Earnings to Combined Fixed Charges and Preferred
             Stock Dividends
 23.1        Consent of KPMG Peat Marwick LLP
 23.3        Consent of Davis Polk & Wardwell (contained in the
             Opinion of Counsel filed as Exhibits 5.1 and 8.1
             hereto)
 24.1        Power of Attorney**
 25.1        Statement of Eligibility under the Trust Indenture
             Act of 1939, as amended of First Union National
             Bank of North Carolina, as Trustee under the
             Indenture
 99.1        Form of Subscription Agency Agreement**
 99.2        Form of Information Agency Agreement**
 99.3        Form of Instructions for Use of Rights
             Certificates**
</TABLE>    
- --------
          
** Previously filed.     

<PAGE>
 
                                                                    EXHIBIT 1.1
                           DEALER MANAGER AGREEMENT
 
 
                  LABORATORY CORPORATION OF AMERICA HOLDINGS
 
                                RIGHTS OFFERING
 
                           DEALER MANAGER AGREEMENT
 
                                                                   May   , 1997
 
CREDIT SUISSE FIRST BOSTON CORPORATION
Eleven Madison Avenue
New York, New York 10010-3629
 
Ladies and Gentlemen:
 
  1. The Rights Offering.
 
  (a) Laboratory Corporation of America Holdings, a Delaware corporation (the
"Company") proposes to distribute (the "Rights Offering") transferable rights
(the "Rights") to subscribe for and purchase, at the election of the holders
of the Rights (the "Rights Holders"), up to an aggregate of 10,000,000 shares
(the "Underlying Shares") of either its    % Series A Convertible Exchangeable
Preferred Stock, par value $0.10 per share (the "Series A Exchangeable
Preferred Stock"), or its    % Series B Convertible Pay-in-Kind Preferred
Stock, par value $0.10 per share (the "Series B PIK Preferred Stock" and,
together with the Series A Exchangeable Preferred Stock, the "Preferred
Stock"), to the holders of record of its common stock, par value $0.01 per
share (the "Common Stock"), at a subscription price of $50 per share. Each
Right consists of a basic subscription privilege under which the Rights
Holders may purchase one share of Preferred Stock for each Right held. In
addition, Rights Holders who exercise their basic subscription privilege in
full will also be eligible to subscribe for shares of the same series of
Preferred Stock not otherwise purchased pursuant to the exercise of Rights,
subject to availability and proration. It is anticipated that the Rights will
be exercisable for a period of    days (the "Subscription Period"), subject to
extension by the Company, and that through the next to last day in such period
the Rights will be eligible for trading on the New York Stock Exchange (the
"NYSE"). Shares of Series A Exchangeable Preferred Stock issued pursuant to
the Rights Offering will be convertible into Common Stock at the option of the
holder thereof at any time after       , 1997, will pay dividends in cash and
will be exchangeable at the option of the Company on or after       , 2000 for
the Company's    % Convertible Subordinated Notes due 2012 (the "Notes") to be
issued pursuant to an indenture (the "Indenture") between the Company and
       , as trustee (the "Trustee"), in substantially the form of the
indenture filed as an exhibit to the registration statement referred to below.
The Notes will be convertible into Common Stock. Shares of Series B PIK
Preferred Stock will be convertible into Common Stock at the option of the
holder thereof at any time after       , 2000 and will pay dividends in kind
until       , 2003 after which dividends will be paid in cash. Shares of
Common Stock issuable upon conversion of shares of Preferred Stock and Notes,
in accordance with the terms thereof, are referred to herein as "Conversion
Shares." The Rights, the Underlying Shares, the Conversion Shares and the
Notes are referred to herein as the "Securities." This Dealer Manager
Agreement, as amended, supplemented or modified from time to time is referred
to herein as this "Agreement."
 
  (b) In connection with the Rights Offering, the Company filed with the
Securities and Exchange Commission (the "Commission") pursuant to the
Securities Act of 1933, as amended, and the rules and regulations thereunder
(collectively, the "Securities Act"), a Registration Statement on Form S-3
(Registration No. 333-22427) containing a prospectus relating to the Rights,
the Underlying Shares and the Notes. Such registration statement, as amended
as of the date and time when it is declared effective by the Commission (the
"Effective Time"), including all materials incorporated by reference therein,
all exhibits thereto and any information contained in the form of a final
prospectus filed with the Commission as part of the registration statement at
the Effective Time, including any form of prospectus or prospectus supplement
filed pursuant to Rule 424 under the Securities Act, is hereinafter called the
"Registration
 
                                       1
<PAGE>
 
Statement"; such final prospectus with respect to the Rights, the Underlying
Shares and the Notes, including any form of prospectus or prospectus
supplement filed pursuant to Rule 424 under the Securities Act is hereinafter
called the "Prospectus".
 
  2. Appointment as Dealer Manager.
 
  (a) The Company has previously engaged you as financial advisor pursuant to
a letter agreement dated       , 1997 (as such letter agreement may be amended
or modified, and, together with the separate indemnification letter, dated
  , 1997 and delivered in connection therewith, the "Engagement Letter"). The
Company hereby appoints you as exclusive Dealer Manager with respect to the
Rights Offering (in this capacity, the "Dealer Manager"), and authorizes you
to act on its behalf in connection with the Rights Offering as specified
herein, all in accordance with, and subject to the terms and conditions of,
this Agreement, and the procedures described in the Registration Statement. In
such capacity you shall act as an independent contractor, and each of your
duties arising out of your engagement pursuant to this Agreement shall be owed
solely to the Company.
 
  (b) As Dealer Manager, you agree, in accordance with customary practice, to
perform those services in connection with the Rights Offering as are
customarily performed by investment banks in connection with acting as a
dealer manager of rights offerings of like nature, including, without
limitation, using reasonable efforts to solicit the exercise of Rights
pursuant to the Rights Offering and communicating generally regarding the
Rights Offering with brokers, dealers, commercial banks and trust companies
and other persons, including other Rights Holders
 
  (c) In connection with the performance of your duties and obligations
hereunder, you agree that you will comply in all material respects with the
laws, rules and regulations of the United States and any other relevant
jurisdiction, and of any stock exchange, which laws, rules and regulations are
applicable to the Rights Offering.
 
  3. The Rights Offering Material.
 
  (a) The Company agrees to furnish you, at its expense, with as many copies
as you may reasonably request of (i) each of the documents that is filed with
the Commission or any other Federal, state, local or foreign governmental or
regulatory authorities or any court (each an "Other Agency" and collectively,
the "Other Agencies") in connection with the Rights Offering, including each
Registration Statement, preliminary and final prospectus filed with the
Commission and all documents incorporated therein by reference, (ii) each
offering circular, solicitation statement, disclosure document, or other
explanatory statement, or other report, filing, document, release or
communication mailed, delivered, published, or filed by or on behalf of the
Company in connection with the Rights Offering, including a copy of the form
of the Rights Certificate, the Instructions for Rights Certificates and the
Notice of Guaranteed Delivery for Rights Certificates, (iii) each document
required to be filed with the Commission pursuant to the provisions of the
Securities Act and the Securities Exchange Act of 1934, as amended (the
"Exchange Act"), pertaining to either the Rights Offering or the Company
during the term of this Agreement and (iv) each appendix, attachment,
modification, amendment or supplement to any of the foregoing and all related
documents (each of (i), (ii), (iii) and (iv), together with each document
incorporated by reference into any of the foregoing, the "Rights Offering
Material"). The Rights Offering Material has been or will be prepared and
approved by, and is the sole responsibility of, the Company. At the
commencement of the Rights Offering, the Company shall cause to be delivered
in a timely manner to each registered holder of any Common Stock legally or
contractually entitled thereto, to the extent required by the rules of the
NYSE, a press release setting forth the material terms of the Rights Offering,
the Prospectus (as defined below), a Rights Certificate or Rights Certificates
representing such holder's Rights and the Instructions for Use of Rights
Certificates and the attached Notice of Guaranteed Delivery and any other
offering materials prepared expressly for use by Rights Holders in connection
with the Rights Offering. Thereafter, to the extent practicable, the Company
shall use its reasonable best efforts to cause copies of such materials to be
mailed to each person who makes a request therefor.
 
                                       2
<PAGE>
 
  (b) The Company acknowledges and agrees that you may use the Rights Offering
Material as specified herein without assuming any responsibility for
independent investigation or verification on your part and the Company
represents and warrants to you that you may rely on the accuracy and adequacy
of any information delivered to you by or on behalf of the Company without
assuming any responsibility for independent verification of such information
or without performing or receiving any appraisal or evaluation of the
Company's assets or liabilities, except with respect to any statements
contained in, or any matter omitted from, the Rights Offering Material in
reliance upon and in conformity with information furnished or confirmed in
writing by you to the Company expressly for use therein.
 
  (c) You hereby agree, as Dealer Manager, that you will not disseminate any
written material in connection with the Rights Offering other than the Rights
Offering Material, and you agree that you will not make any statements in
connection with such solicitation, other than the statements that are set
forth in the Rights Offering Material.
 
  (d) The Company agrees that no Rights Offering Material will be used in
connection with the Rights Offering or filed with the Commission or any Other
Agency with respect to the Rights Offering without first obtaining your prior
approval, which approval shall not be unreasonably withheld.
 
  4. Compensation. Your fees, compensation and reimbursement for acting as
Dealer Manager hereunder shall be as set forth in the Engagement Letter.
Nothing in this Agreement shall affect your rights to receive any fees,
compensation or reimbursement set forth in the Engagement Letter in accordance
with the terms thereof.
 
  5. Expenses of Dealer Manager and Others. In addition to your compensation
for services hereunder pursuant to Section 4 hereof, the Company agrees to pay
directly, or reimburse you, as the case may be, for (i) all expenses relating
to the preparation, printing, filing, mailing and publishing of the Rights
Offering Material, (ii) all fees and expenses of other persons rendering
services on the Company's behalf in connection with the Rights Offering,
including the Subscription and Information Agent (as defined in the Rights
Offering Materials), (iii) all advertising charges in connection with the
Rights Offering, including those of any public relations firm or other person
or entity rendering services in connection therewith, (iv) all fees, if any,
payable to dealers, banks, trust companies and other financial intermediaries
as reimbursement for their customary mailing and handling expenses incurred in
forwarding the Rights Offering Material to their customers, (v) all fees and
expenses payable in connection with the registration or qualification of the
Securities under state securities or "blue sky" laws, (vi) all listing fees
and any other fees and expenses incurred in connection with the listing on the
NYSE of the Preferred Stock and the Conversion Shares, (vii) the filing fee of
the National Association of Securities Dealers, Inc. relating to the Rights
Offering and (viii) reasonable fees and expenses incurred by you to the extent
set forth in the Engagement Letter. All payments to be made by the Company
pursuant to this Section 5 shall be made promptly against delivery to the
Company of statements therefor. The Company shall be liable for the foregoing
payments whether or not the Rights Offering is commenced, withdrawn,
terminated or canceled or whether you withdraw pursuant to Section 13 hereof.
 
  6. Rights Holder Lists. The Company will cause you to be provided with cards
or lists or other records in such form as you may reasonably request showing
the names and addresses of, and the number of Rights held by, the Rights
Holders, as of the Record Date (as defined in the Rights Offering Material)
and will cause you to be advised from time to time during the period of the
Rights Offering as to any transfers of record of Rights.
 
  7. Additional Obligations of the Company.
 
  (a) The Company will furnish to you, without charge, one signed copy of the
Registration Statement and any post-effective amendments thereto, including
all of the documents incorporated by reference therein and all financial
statements and schedules.
 
                                       3
<PAGE>
 
  (b) To the extent required under the Securities Act, the Company will file
the Prospectus with the Commission pursuant to and in accordance with Rule
424(b) thereunder.
 
  (c) Prior to the issuance of the Securities, the Company shall obtain the
registration or qualification thereof under the securities or "blue sky" laws
of such jurisdictions as may be required for the consummation of the Rights
Offering; provided, that in connection therewith the Company shall not be
required to qualify as a foreign corporation or as a dealer in securities, to
file a general consent to service of process in any jurisdiction or to subject
itself to taxation for doing business in such jurisdiction, and shall furnish
you with "blue sky" memoranda evidencing such registration and qualification
or otherwise inform you in writing of any restrictions on the conduct of the
Rights Offering pursuant to such laws.
 
  (d) The Company, acting through its Board of Directors, shall, to the extent
it has not already done so, in accordance with applicable law and its
Certificate of Incorporation and By-Laws: (i) promptly and duly call, give
notice of, convene and hold as soon as practicable following the date hereof a
meeting of its stockholders (the "Stockholders' Meeting") for the purpose of
voting to approve an amendment to the Company's Certificate of Incorporation
to increase (x) the authorized number of shares of Common Stock to permit the
full conversion of all shares of Preferred Stock to be outstanding following
consummation of the Rights Offering and (y) the authorized number of shares of
Preferred Stock to permit the payment of dividends in kind on the Series B PIK
Preferred Stock (the "Charter Amendment"); (ii) as promptly as practicable
following the date hereof prepare and file with the Commission a preliminary
proxy statement relating to the Stockholders' Meeting and the Charter
Amendment, respond to any comments of the Commission with respect to such
preliminary proxy statement and cause the definitive proxy statement to be
mailed to its stockholders, and (iii) recommend approval of the Charter
Amendment by the stockholders of the Company and include in the definitive
proxy statement such recommendation and take all lawful action to solicit such
approval.
 
  (e) The Company will use its best efforts to cause the Registration
Statement (if such has not been declared effective as of the date of this
Agreement) and any post-effective amendments thereto to become effective as
promptly as practicable. The Company will prepare and file, as required, any
and all necessary amendments or supplements to any of the Rights Offering
Material, will promptly furnish to you true and complete copies of each such
amendment and supplement within a reasonable period of time prior to the
filing thereof and, as applicable, will use its best efforts to cause the same
to become effective as promptly as practicable.
 
  (f) The Company shall advise you promptly of (i) the time when the
Registration Statement has become effective and when any post-effective
amendment thereto becomes effective, (ii) the occurrence of any event which
could cause the Company to withdraw, rescind, terminate or modify the Rights
Offering, (iii) the occurrence of any event, or the discovery of any fact, the
occurrence or existence of which it believes would require the making of any
change in any of the Rights Offering Material then being used in connection
with the Rights Offering or would cause any representation or warranty
contained in this Agreement to be untrue or inaccurate in any material
respect, (iv) the issuance by the Commission or any Other Agency of any
comment or order or the taking of any other action concerning the Rights
Offering (and, if in writing, the Company will furnish you with a copy
thereof), (v) the suspension of qualification of the Rights, the Preferred
Stock, the Common Stock or the Notes in any jurisdiction, (vi) any material
developments in connection with the Rights Offering, including, without
limitation, the commencement of any lawsuit concerning the Rights Offering and
(vii) any other information relating to the Rights Offering, the Rights
Offering Material or this Agreement which you may from time to time reasonably
request.
 
  (g) For so long as any of the Preferred Stock or Notes is outstanding, the
Company will deliver to you, promptly upon their becoming available, copies of
all financial statements, reports, notices and proxy statements sent by the
Company to its security holders, and of all current, regular and periodic
reports filed by the Company or any of its subsidiaries with any securities
exchange or with the Commission or any governmental authority succeeding to
any of the Commission's functions.
 
                                       4
<PAGE>
 
  (h) Prior to the consummation or termination of the Rights Offering, the
Company shall furnish to you, as soon as they have been prepared by the
Company, a copy of any consolidated financial statements of the Company and
its consolidated subsidiaries for any period subsequent to the period covered
by the financial statements appearing in the Registration Statement and the
Prospectus.
 
  (i) The Company will use its best efforts to comply in all material respects
with the applicable provisions of the Securities Act and the Exchange Act, and
other applicable securities laws.
 
  (j) The Company will not exercise its option to exchange the Notes for
Series A Exchangeable Preferred Stock unless, as of the date of exercise of
such option, (i) the Company has duly authorized the exercise of its option to
exchange the Notes for the Preferred Stock; (ii) the Company has corporate
power and authority to enter into the Indenture and to perform its obligations
under the Indenture and to issue and deliver the Notes; (iii) the Indenture
has been executed and delivered and is a valid and legally binding obligation
of the Company enforceable in accordance with its terms (assuming due
authorization, execution and delivery by the Trustee), except (x) as such
enforcement may be limited by bankruptcy, insolvency, reorganization,
moratorium or similar laws affecting creditors' rights and remedies generally
and (y) as such enforcement may be limited by general principles of equity,
regardless of whether enforcement is sought in a proceeding at law or in
equity; (iv) no consent or approval of any governmental authority or other
United States (State or Federal) person or entity which has not been obtained
is required in connection with the issuance of the Notes; (v) the Notes will
be, when issued in accordance with the terms of the Series A Certificate of
Designation and the Indenture, and approved by the Board of Directors of the
Company the valid and legally binding obligations of the Company enforceable
in accordance with their terms, except (x) as such enforcement may be limited
by bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting creditors' rights and remedies generally and (y) as such enforcement
may be limited by general principles of equity, regardless of whether
enforcement is sought in a proceeding at law or in equity; and (vi) the
issuance of the Notes in exchange for Series A Exchangeable Preferred Stock
pursuant to the Series A Certificate of Designation and the Indenture will not
(x) result in a violation of any of the provisions of the certificate or
articles of incorporation or by-laws (or similar organizational documents) of
the Company or any of its subsidiaries or (y) result in a breach of any of the
material terms or provisions of, or constitute a default (with or without due
notice or lapse of time) under, any loan or credit agreement, indenture, deed
of trust, mortgage, note, lease or other agreement or instrument to which the
Company or any of its subsidiaries is a party or by which any of them or any
of their respective properties or assets is or may be bound, except for any
such conflict, violation, breach or default which would not have a Material
Adverse Effect (as defined below) or (z) result in the Company being an
"investment company" under the Investment Company Act of 1940, as amended, and
the rules and regulations promulgated by the Commission thereunder. The
respective forms of the Indenture and the Notes filed as exhibits to the
Registration Statement conform in all material respects, and, if and when
executed by the Company, the Indenture and the Notes so executed will conform
in all material respects, to the respective descriptions thereof contained in
the Prospectus.
 
  (k) The Company will use the net proceeds received by it from the sale of
the Preferred Stock in the manner specified in the Prospectus under the
caption "Use of Proceeds."
 
  (l) To the extent the same has not already been covered through due
diligence investigations performed by you or on your behalf through the date
hereof, the Company shall cooperate with your reasonable additional due
diligence investigations to verify the accuracy and completeness of the
disclosure contained in the Registration Statement, any post-effective
amendment to the Registration Statement, the Prospectus and the other Rights
Offering Materials (as amended or supplemented), and the accuracy and
completeness of any of the representations, warranties or statements of the
Company, or the fulfillment of any of the conditions herein contained.
 
  (m) As soon as practicable, but not later than the Availability Date (as
defined below), the Company will make generally available to its security
holders an earnings statement that will satisfy the provisions of
 
                                       5
<PAGE>
 
Section 11(a) of the Securities Act covering a period of at least 12 months
beginning after the "effective date of the Registration Statement" (as defined
in Rule 158 of the General Rules and Regulations of the Securities Act). For
purposes of the preceding sentence, "Availability Date" means the 45th day
after the end of the fourth fiscal quarter following the fiscal quarter that
includes the "effective date of the Registration Statement," except that if
such fourth fiscal quarter is the last quarter of the Company's fiscal year
"Availability Date" means the 90th day after the end of such fourth fiscal
quarter.
 
  (n) The Company will not accept the subscription of any Rights Holder (as
defined in the Registration Statement) unless (i) Rights have been exercised
to purchase 10,000,000 shares of Preferred Stock or (ii) the Prospectus shall
have been amended or supplemented to disclose that less than 10,000,000 shares
of Preferred Stock may be issued pursuant to the exercise of Rights and such
amendment or supplement shall be reasonably acceptable to you.
 
  (o) Subject to meeting the listing requirements of the NYSE, the Company
will use its reasonable best efforts to cause the Preferred Stock to be
approved for listing on the NYSE. The Company will also use its reasonable
best efforts to cause the Conversion Shares to be approved for listing on the
NYSE, subject to official notice of issuance.
 
  8. Additional Representations and Warranties of the Company. The Company
represents and warrants to you:
 
    (a) The Company and each of its subsidiaries is duly organized, validly
  existing and in good standing under the laws of the jurisdiction in which
  it is incorporated, with full corporate power and authority to own, lease
  and operate its respective properties and to conduct its respective
  business as presently conducted and as described in the Prospectus; and the
  Company and each of its subsidiaries is duly qualified to transact business
  and is in good standing in each jurisdiction in which the conduct of its
  business or the ownership or leasing of property requires such
  qualification, except to the extent that the failure to be so qualified or
  to be in good standing, considering all such cases in the aggregate, would
  not be reasonably likely to have a material adverse effect on the business,
  properties, financial position or result of operations of the Company and
  its subsidiaries taken as a whole (a "Material Adverse Effect").
 
    (b) The Company has all corporate power and authority necessary to
  commence and consummate the Rights Offering, to execute and deliver this
  Agreement, the Engagement Letter and the Indenture and to perform its
  obligations under this Agreement, the Engagement Letter and the Indenture.
  The execution and delivery of, and the performance by the Company of its
  obligations under, this Agreement and the Engagement Letter have been duly
  and validly authorized by the Company; and each of this Agreement and the
  Engagement Letter has been duly executed and delivered by the Company and
  is a legal, valid and binding obligation of the Company enforceable against
  it in accordance with its terms, except that the enforceability hereof or
  thereof may be limited by and subject to (i) bankruptcy, insolvency,
  reorganization, fraudulent conveyance, moratorium and other similar laws
  now or hereafter in effect relating to rights and remedies of creditors,
  (ii) the effect of general principles of equity, whether enforcement is
  considered in a proceeding in equity or at law and (iii) the effect of
  United States Federal securities or other United States laws or principles
  of public policy with respect to the indemnification, contribution,
  exculpation or similar provisions herein or therein. The Indenture, the
  execution and delivery thereof by the Company, and, subject to action by
  the Company to authorize the exchange of Notes for Series A Exchangeable
  Preferred Stock, the execution and delivery by the Company of the Notes,
  have been duly authorized by the Company. If the Notes are issued in
  accordance with the Certificate of Designation of the Series A Exchangeable
  Preferred Stock (the "Series A Certificate of Designation") and the
  Indenture (when the Indenture has been executed and delivered by the
  Company and assuming due authorization, execution and delivery thereof by
  the Trustee) and approved by the Board of Directors, assuming the Notes
  have been duly authorized, executed and authenticated in accordance with
  the provisions of the Indenture, the Notes
 
                                       6
<PAGE>
 
  will be valid and legally binding obligations of the Company enforceable in
  accordance with their terms, except (x) as such enforcement may be limited
  by bankruptcy, insolvency, reorganization, moratorium or similar laws
  affecting creditors' rights and remedies generally and (y) as such
  enforcement may be limited by general principles of equity, regardless of
  whether enforcement is sought in a proceeding at law or in equity.
 
    (c) When the Indenture is executed and delivered by the Company and
  assuming the Indenture has been duly authorized, executed and delivered by
  the Trustee, the Indenture will constitute a legal, valid and binding
  obligation of the Company enforceable against the Company in accordance
  with its terms, except (i) as such enforcement may be limited by
  bankruptcy, insolvency, reorganization, moratorium or similar laws
  affecting creditors' rights and remedies generally and (ii) as such
  enforcement may be limited by general principles of equity, regardless of
  whether enforcement is sought in a proceeding at law or in equity.
 
    (d) The Registration Statement as of the Effective Time and the
  Prospectus as of its date complied in all material respects with the
  applicable requirements of the Securities Act and the rules and regulations
  thereunder as of such dates did not contain any untrue statement of a
  material fact or omit to state a material fact required to be stated
  therein or necessary to make the statements made therein, in the light of
  the circumstances under which they are made, not misleading; provided,
  however, that no representation is made with respect to any statements
  contained in, or any matter omitted from, the Registration Statement or
  Prospectus in reliance upon and in conformity with information furnished or
  confirmed in writing by you to the Company expressly for use therein.
 
    (e) The documents incorporated by reference or deemed to be incorporated
  by reference in the Registration Statement and the Prospectus, at the time
  they were or hereafter are filed with the Commission, complied or when so
  filed will comply in all material respects with the requirements of the
  Exchange Act.
 
    (f) The information in the Prospectus under the captions "Risk Factors--
  Government Regulation," "Regulation and Reimbursement," "Certain
  Relationships and Related Transactions," "Description of the Amended Credit
  Agreement," "Description of Capital Stock," "Description of Rights
  Offering," "Description of Preferred Stock," "Description of the Notes" and
  "Certain Federal Income Tax Consequences" to the extent that it constitutes
  summaries of legal matters or documents referred to therein, has been
  reviewed by the Company and fairly and accurately summarizes the matters
  referred to therein.
 
    (g) The Rights Offering, the issuance and sale of shares of Preferred
  Stock pursuant to the Rights Offering, the issuance of the Notes in
  exchange for Series A Exchangeable Preferred Stock pursuant to the Series A
  Certificate of Designation and the Indenture, the issuance of Conversion
  Shares upon conversion of the Preferred Stock or the Notes and the
  execution, delivery and performance of this Agreement by the Company comply
  and will comply in all material respects with all applicable requirements
  of Federal, state, local and foreign law, including, without limitation,
  any applicable regulations of the Commission and Other Agencies, and all
  applicable judgments, orders or decrees; and no consent, authorization,
  approval, order, exemption, registration, qualification or other action of,
  or filing with or notice to, the Commission or any Other Agency is required
  in connection with the execution, delivery and performance of this
  Agreement by the Company, the commencement or consummation by the Company
  of the Rights Offering or the issuance of the Notes in exchange for Series
  A Exchangeable Preferred Stock or the issuance of Conversion Shares, except
  (i) as described in the Rights Offering Materials, (ii) such as have been
  obtained or made, and (iii) such as could not reasonably be expected to
  materially adversely affect the ability of the Company to execute, deliver
  and perform this Agreement or to commence and consummate the Rights
  Offering in accordance with its terms.
 
                                       7
<PAGE>
 
    (h) The Rights Offering, the issuance and sale of shares of Preferred
  Stock pursuant to the Rights Offering, the issuance of Conversion Shares
  upon conversion of the Preferred Stock or the Notes and the execution,
  delivery and performance of this Agreement by the Company, do not and will
  not (i) result in a violation of any of the provisions of the certificate
  or articles of incorporation or by-laws (or similar organizational
  documents) of the Company or any of its subsidiaries or (ii) result in a
  breach of any of the material terms or provisions of, or constitute a
  default (with or without due notice or lapse of time) under, any loan or
  credit agreement, indenture, deed of trust, mortgage, note, lease or other
  agreement or instrument to which the Company or any of its subsidiaries is
  a party or by which any of them or any of their respective properties or
  assets is or may be bound, except as to such conflict, violation, breach or
  default (A) which is described in the Rights Offering Materials or (B)
  which could not be reasonably expected to have a Material Adverse Effect or
  to materially adversely affect the ability of the Company to execute,
  deliver and perform this Agreement or to commence and consummate the Rights
  Offering in accordance with its terms.
 
    (i) No stop order suspending the effectiveness of the Registration
  Statement has been issued and no proceedings for that purpose are pending
  or, to the knowledge of the Company, threatened by the Commission; and any
  request of the Commission for additional information (to be included in the
  Registration Statement or in the Prospectus or otherwise) has been complied
  with or otherwise satisfied.
 
    (j) Since the respective dates as of which information is given or
  incorporated by reference in the Registration Statement, and except as
  otherwise stated or contemplated therein, (i) there has been no material
  adverse change and no development reasonably likely to result in a
  prospective material adverse change in the condition (financial or
  otherwise), business, properties, or results of operations of the Company
  and its subsidiaries taken as a whole (a "Material Adverse Change") whether
  or not arising in the ordinary course of business; (ii) there have been no
  transactions entered into by the Company or any of its subsidiaries which
  are material to the Company and its subsidiaries, taken as a whole, other
  than those entered into in the ordinary course of business or in connection
  with the Rights Offering; (iii) except for changes occurring in connection
  with the Rights Offering or pursuant to the issuance or exercise of options
  pursuant to the Company's stock option or other employee benefit plans
  described in the Registration Statement, there has been no material change
  in the capital stock of the Company or any of its subsidiaries; and (iv)
  except in connection with the Rights Offering, there has been no dividend
  or distribution of any kind declared, paid or made by the Company or any of
  its wholly owned subsidiaries on any class of their capital stock.
 
    (k) Except as disclosed in the Rights Offering Material, there is no
  action, suit or proceeding which has been served upon the Company or any of
  its subsidiaries or of which any of their properties or assets is the
  subject that is now pending or, to the best knowledge of the Company,
  threatened, against or affecting the Company or any of its subsidiaries or
  any of their properties or assets, that, if determined adversely to the
  Company or any of its subsidiaries, is reasonably likely to result in a
  Material Adverse Change or could reasonably be expected to have a Material
  Adverse Effect or to materially adversely affect the ability of the Company
  to execute, deliver and perform this Agreement or to commence or consummate
  the Rights Offering in accordance with its terms.
 
    (l) The authorized, issued and outstanding capital stock of the Company
  conforms to the description thereof in the Prospectus, and all of the
  issued and outstanding shares of capital stock of the Company have been
  duly authorized and validly issued, are fully paid and non-assessable and
  except as set forth in the Prospectus are not subject to any preemptive or
  similar rights. Following approval by the stockholders of the Company of
  the Charter Amendment and the filing thereof with the Secretary of State of
  the State of Delaware, there will be sufficient authorized shares of Common
  Stock to permit conversion of the Preferred Stock and Notes in accordance
  with their terms and, if
 
                                       8
<PAGE>
 
  and when issued upon such conversion in accordance with the provisions of
  the terms of the Preferred Stock or the Indenture, as the case may be, the
  Conversion Shares will be validly issued, fully paid, non-assessable and
  not subject to any preemptive or similar rights.
 
    (m) The Rights conform in all material respects to the description
  thereof contained in the Prospectus, have been duly authorized for
  issuance, and, when issued and delivered in accordance with the terms of
  the Rights Offering, will be validly issued and no holder thereof is or
  will be subject to personal liability by reason of being such a holder.
 
    (n) The issuance of the Series A Exchangeable Preferred Stock and the
  Series B PIK Preferred Stock has been duly and validly authorized and, when
  issued and delivered against payment therefor in accordance with the terms
  of the Rights Offering, will be duly and validly issued, fully paid and
  non-assessable, with no personal liability attaching to the ownership
  thereof, and will conform in all material respects to the description of
  the Preferred Stock in the Prospectus. Following approval by the
  stockholders of the Company of the Charter Amendment and the filing thereof
  with the Secretary of State of the State of Delaware there will be
  sufficient authorized shares of preferred stock of the Company to permit
  payment of dividends on the Series B PIK Preferred Stock.
 
    (o) The financial statements of the Company included or incorporated by
  reference in the Registration Statement present fairly the financial
  position of the Company and its subsidiaries as of the dates indicated and
  the results of their operations for the periods specified; except as
  otherwise stated therein, said financial statements have been prepared in
  conformity with generally accepted accounting principles applied on a
  consistent basis; and any supporting schedules to such financial statements
  included or incorporated by reference in the Registration Statement present
  fairly the information required to be included therein.
 
    (p) To the best of the Company's knowledge, the accountants who have
  certified the financial statements and supporting schedules included or
  incorporated by reference in the Rights Offering Material are independent
  public accountants with respect to the Company and its subsidiaries as
  required by the Securities Act.
 
    (q) The Rights have been approved for trading on the NYSE.
 
    (r) The Company is not, and will not be as a result of the issuance of
  the Rights or the purchase of Preferred Stock by the holders of the Rights,
  pursuant to the terms of the Rights Offering, an "investment company" under
  the Investment Company Act of 1940, as amended, and the rules and
  regulations promulgated by the Commission thereunder.
 
    (s) Any certificate signed by any officer of the Company and delivered to
  you or to your counsel shall be deemed a representation of the Company to
  you as to the matters covered thereby.
 
  9. Conditions to Obligations of the Dealer Manager. Subject to applicable
laws, rules and regulations, your obligation to render services pursuant to
this Agreement shall at all times be subject, in your discretion, to the
following conditions:
 
    (a) The Company at all times shall have performed in all material
  respects all of its obligations hereunder and under the Engagement Letter
  theretofore to be performed.
 
    (b) All representations, warranties and other statements of the Company
  contained in this Agreement are now and at the commencement of, at all
  times during the continuance of, and upon the consummation of, the Rights
  Offering shall be, true and correct in all material respects.
 
    (c) The Registration Statement shall have been declared effective by the
  Commission and no stop order suspending the effectiveness of the
  Registration Statement or any part thereof shall have
 
                                       9
<PAGE>
 
  been issued and no proceeding for that purpose shall have been initiated or
  threatened by the Commission; and all requests for additional information
  on the part of the Commission shall have been complied with to your
  reasonable satisfaction.
 
    (d) You shall have received opinions, dated the date hereof and addressed
  to you, of Bradford T. Smith, Executive Vice President, General Counsel,
  Corporate Compliance Officer and Secretary of the Company, and Davis Polk &
  Wardwell, special counsel to the Company, with respect to the matters set
  forth in Exhibits A and B, respectively.
 
    (e) You shall have received opinion, dated the date hereof and addressed
  to you, of Skadden, Arps, Slate, Meagher & Flom LLP, counsel to the Dealer
  Manager, in form and substance reasonably satisfactory to you.
 
    (f) You shall have received a letter, satisfactory in form to you and
  your counsel, dated the date hereof and addressed to you, of KPMG Peat
  Marwick LLP, independent auditors for the Company, subject to your
  providing the appropriate representation letters to such accountants,
  containing statements and information of the type ordinarily included in
  accountants' comfort letters with respect to the financial statements and
  certain financial information contained in the Prospectus.
 
    (g) You shall have received a certificate, dated the Record Date (as
  defined in the Prospectus), of a duly authorized officer of the Company,
  substantially in the form of Exhibit C hereto, and your counsel shall have
  been furnished with all such other documents and certificates as they may
  reasonably request in order to evidence the accuracy and completeness of
  any of the representations, warranties or statements of the Company
  hereunder, the performance of any of the obligations of the Company
  hereunder, or the fulfillment of any of the conditions contained herein.
 
    (h) It shall not have become unlawful under any law, rule or regulation,
  Federal, state or local, for you to render services pursuant to this
  Agreement, or to continue so to act, as the case may be.
 
  10. Indemnification.
 
  (a) The Company agrees to hold harmless and indemnify you (including any
affiliated companies) and any officer, director, partner, employee or agent of
you or any such affiliated companies and any entity or person controlling
(within the meaning of Section 20(a) of the Exchange Act) you or any
affiliated companies (collectively, the "Dealer Manager Indemnified Persons"),
from and against any and all losses, claims, damages, liabilities and expenses
whatsoever (including, but not limited to, any and all expenses incurred in
investigating, preparing or defending against any litigation or proceeding,
commenced or threatened, or any claims whatsoever whether or not resulting in
any liability) (each a "Loss" and collectively, the "Losses"), (i) arising out
of or based upon any untrue statement or alleged untrue statement of material
fact contained or incorporated by reference in the Rights Offering Material or
in any other material used by the Company, or authorized by the Company for
use in connection with the Rights Offering or the transactions contemplated
thereby, or arising out of or based upon the omission or alleged omission to
state in any such document a material fact required to be stated therein or
necessary to make the statements therein in light of the circumstances under
which they were made not misleading (other than statements or omissions made
in reliance upon information furnished by you to the Company expressly for use
therein), (ii) arising out of, or based upon, any withdrawal, rescission,
amendment or termination by the Company of, or failure by the Company to
commence or consummate, the Rights Offering or the transactions contemplated
thereby or any other failure to comply with the terms and conditions specified
in the Rights Offering Material, (iii) arising out of the breach or alleged
breach by the Company of any representation, warranty or covenant set forth in
this Agreement, (iv) arising out of, relating to or in connection with any
other action taken or omitted to be taken by an indemnified person, or (v)
otherwise arising out of, relating to or in connection with the Rights
Offering, the other transactions described in the
 
                                      10
<PAGE>
 
Rights Offering Material or the services of the Dealer Manager hereunder. The
Company shall not, however, be responsible for any Loss pursuant to clauses
(iv) or (v) of the preceding sentence of this Section 10 which has been
finally judicially determined to have resulted primarily from the bad faith or
gross negligence on the part of any indemnified person, other than any Loss
arising out of or resulting from actions performed at the request of, with the
consent of or in conformity with actions taken or omitted to be taken by, the
Company.
 
  (b) The Dealer Manager agrees to hold harmless and indemnify the Company,
its officers and employees, each of its directors and such person, if any, who
controls the Company (within the meaning of Section 20(a) of the Exchange
Act), from and against any and all Losses, to which the Company or any such
director, officer or controlling person may become subject, rising out of or
based upon any untrue statement or alleged untrue statement of material fact
contained in the Rights Offering Materials or the omission or alleged omission
to state in any such document a material fact required to be stated therein or
necessary to make the statements therein in light of the circumstances under
which they were made not misleading, but in each case only to the extent that
the untrue statement of alleged untrue statement or omission or alleged
omission was made in reliance upon and in conformity with the written
information furnished to the Company by the Dealer Manager specifically for
inclusion therein.
 
  (c) The Company and you agree that if any indemnification sought by any
indemnified person pursuant to this Section 10 is unavailable for any reason
or insufficient to hold the indemnified person harmless, then the Company and
you shall contribute to the Losses for which such indemnification is held
unavailable or insufficient in such proportion as is appropriate to reflect
the relative benefits received (or anticipated to be received) by the Company,
on the one hand, and actually received by you, on the other hand, in
connection with the transactions contemplated by this Agreement or, if such
allocation is not permitted by applicable law, not only such relative benefits
but also the relative faults of the Company, on the one hand, and you, on the
other hand, as well as any other equitable considerations, subject to the
limitation that in any event the aggregate contribution by you to all Losses
with respect to which contribution is available hereunder shall not exceed the
fees actually received by you in connection with your engagement hereunder. It
is hereby agreed that the relative benefits to the Company, on the one hand,
and you, on the other hand, with respect to the Rights Offering and the
transactions contemplated thereby shall be deemed to be in the same proportion
as (i) the total net proceeds from the Rights Offering (before deducting
expenses) received (or anticipated to be received) by the Company bears to
(ii) the fees actually received by you from the Company in connection with
your engagement hereunder.
 
  (d) The foregoing rights to indemnity and contribution shall be in addition
to any other right which indemnified persons may have at common law or
otherwise. If any litigation or proceeding is brought against any indemnified
person in respect of which indemnification may be sought pursuant to this
Section 10, such indemnified person shall promptly notify the indemnifying
person in writing of the commencement of such litigation or proceeding, but
the failure so to notify the indemnifying person shall relieve the
indemnifying person from any liability which it may have hereunder only if,
and to the extent that, such failure results in the forfeiture by the
indemnifying person of substantial rights and defenses, and will not in any
event relieve the indemnifying person from any other obligation or liability
that it may have to any indemnified person other than under this Agreement. In
case any such litigation or proceeding shall be brought against any
indemnified person and such indemnified person shall notify the indemnifying
person in writing of the commencement of such litigation or proceeding, the
indemnifying person shall be entitled to participate in such litigation or
proceeding, and, after written notice from the indemnifying person to such
indemnified person, to assume the defense of such litigation or proceeding
with counsel of its choice at its expense, provided, however, that such
counsel shall be satisfactory to the indemnified person in the exercise of its
reasonable judgment. Notwithstanding the election of the indemnifying person
to assume the defense of such litigation or proceeding, such indemnified
person shall have the right to employ separate counsel and to participate in
the defense of such litigation or proceeding and the indemnifying person shall
bear the reasonable fees, costs and expenses of such separate counsel and
shall pay such fees, costs and
 
                                      11
<PAGE>
 
expenses at least quarterly (provided that with respect to any single
litigation or proceeding or with respect to several litigations or proceedings
involving substantially similar legal claims, the indemnifying person shall
not be required to bear the fees, costs and expenses of more than one such
counsel) if (i) in the reasonable judgment of such indemnified person the use
of counsel chosen by the indemnifying person to represent such indemnified
person would present such counsel with a conflict of interest, (ii) the
defendants, or targets of, any such litigation or proceeding include both an
indemnified person and the indemnifying person, and such indemnified person
shall have reasonably concluded that there may be legal defenses available to
it or to other indemnified persons which are different from or additional to
those available to the indemnifying person (in which case the indemnifying
person shall not have the right to direct the defense of such action on behalf
of the indemnified person), (iii) the indemnifying person shall not have
employed counsel satisfactory to such indemnified person, in the exercise of
the indemnified person's reasonable judgment, to represent such indemnified
person within a reasonable time after notice of the institution of such
litigation or proceeding or (iv) the indemnifying person shall authorize in
writing such indemnified person to employ separate counsel at the expense of
the indemnifying person. In any action or proceeding the defense of which the
indemnifying person assumes, the indemnified person shall have the right to
participate in such litigation and retain its own counsel at such indemnified
person's own expense. The Company and you agree to notify the other promptly
of the assertion of any claim against it, any of its officers or directors or
any entity or person who controls it within the meaning of Section 20(a) of
the Exchange Act in connection with the Rights Offering. The foregoing
indemnification commitments shall apply whether or not the indemnified person
is a formal party to such litigation or proceeding.
 
  (e) The indemnifying person also agrees to reimburse each indemnified person
for all expenses (including fees and disbursements of counsel) as they are
incurred by such indemnified person in connection with investigating,
preparing for, defending or providing evidence (including appearing as a
witness) with respect to any action, claim, investigation, inquiry,
arbitration or other proceeding referred to in this Section 10 or enforcing
this Agreement, whether or not in connection with pending or threatened
litigation in which any indemnified person is a party.
 
  (f) The Company agrees that it will not, without the prior written consent
of the indemnified party, settle, compromise or consent to the entry of any
judgment in any pending or threatened claim, action or proceeding, in respect
of which indemnification or contribution may be sought hereunder (whether or
not you, any other Dealer Manager Indemnified Person or the Company is an
actual or potential party), unless such settlement, compromise or judgment (i)
includes an unconditional release of each Dealer Manager Indemnified Person
from all liability arising out of such claim, action or proceeding and (ii)
does not include a statement as to, or an admission of, fault, culpability or
a failure to act, by or on behalf of any Dealer Manager Indemnified Person. No
indemnifying party shall be liable for any settlement of any action or claim
for monetary damages which an indemnified party may effect without the consent
of the indemnifying person, which consent shall not be unreasonably withheld.
 
  11. Reference to Dealer Manager. The Company agrees that any reference to
you in any Rights Offering Material, or any other release, publication or
communication to any party outside the Company is subject to your prior
approval. If you resign or are terminated prior to the dissemination of any
Rights Offering Material or any other release or communication, no reference
shall be made therein to you without your prior written permission.
 
  12. Access to Information. In connection with the activities hereunder, the
Company agrees to furnish you and your counsel with all information concerning
the Company that you reasonably deem appropriate and agrees to provide you
with reason-able access to the Company's officers, directors, accountants,
counsel, consultants and other appropriate agents and representatives, it
being understood that you will be entitled to rely upon such information
supplied by the Company and such persons without assuming any responsibility
for independent investigation or verification thereof. Any such investigations
by you shall not relieve the Company of any responsibility for its
representations, warranties or indemnities.
 
                                      12
<PAGE>
 
  13. Withdrawal. In the event that (i) the Company uses or permits the use of
any Rights Offering Material in connection with the Rights Offering or files
any such material with the Commission without your prior approval, (ii) the
Company shall have breached in any material respect any of its
representations, warranties, agreements or covenants herein, (iii) at any time
during the Subscription Period, a stop order suspending the effectiveness of
the Registration Statement shall have been issued or a proceeding for that
purpose shall have been instituted or shall be pending or threatened in
writing by the Commission, or a request for additional information on the part
of the Commission shall not have been satisfied to your reasonable
satisfaction or there shall have been issued, at any time during the Rights
Offering, any temporary restraining order or injunction restraining or
enjoining you from acting in your capacities as Dealer Manager hereunder and
such temporary restraining order or injunction is then in effect and has not
been stayed or vacated, or (iv) the Company shall have amended the terms of
the Rights Offering without your prior consent, then you shall be entitled to
withdraw by written notice as Dealer Manager in connection with the Rights
Offering without any liability or penalty to you or any Dealer Manager
Indemnified Person for such withdrawal, and without loss of any right to the
indemnification provided in Section 10 hereof, the payment of all fees and
expenses payable under this Agreement which have accrued to the date of such
withdrawal or would otherwise be due to you on such date, or the benefit of
any other provisions surviving such withdrawal pursuant to Section 14 hereof.
If you withdraw as Dealer Manager pursuant to this paragraph, the fees accrued
and reimbursement for your expenses through the date of such withdrawal shall
be paid to you on or promptly after such date, unless such fees or expenses
are due at some later date in accordance with the express terms of any
applicable agreement.
 
  14. Termination. This Agreement shall terminate upon the expiration,
termination or withdrawal of the Rights Offering, upon the date you give
notice that any of the conditions specified in Section 9 hereof have not been
fulfilled or upon your withdrawal as Dealer Manager pursuant to Section 13
hereof, it being understood that Sections 4, 5, 10, 11, 14, 16, 19 and 21
hereof shall survive any termination of this Agreement.
 
  15. Notices. All notices and other communications required or permitted to
be given under this Agreement shall be in writing and shall be given (and
shall be deemed to have been given upon receipt) by delivery in person, by
cable, by telecopy, by telegram, by telex or by registered or certified mail
(postage prepaid return receipt requested) to the applicable party at the
addresses indicated below:
 
    (a)if to the Dealer Manager:
 
      Credit Suisse First Boston Corporation
      Eleven Madison Avenue
      New York, New York 10010-3629
      Telecopy No: (212) 325-8278
      Attention: Investment Banking Department--
                  Transactions Advisory Group
 
    (b)if to the Company:
 
      Laboratory Corporation of America Holdings
      358 South Main Street
      Burlington, North Carolina 27215
      Telecopy No.: (910) 226-3835
      Attention: General Counsel
 
  16. Consent to Jurisdiction; Service of Process. The Company hereby (a)
submits to the jurisdiction of any New York State or Federal court sitting in
the City of New York, (b) agrees that all claims with respect to such actions
or proceedings may be heard and determined in such New York State or Federal
court, (c) waives the defense of an inconvenient forum, (d) agrees not to
commence any action or
 
                                      13
<PAGE>
 
proceeding relating to this Agreement other than in a New York State or
Federal court sitting in the City of New York and (e) agrees that a final
judgment in any such action or proceeding shall be conclusive and may be
enforced in other jurisdictions by suit on the judgment or in any other manner
provided by law.
 
  17. Entire Agreement. This Agreement and the Engagement Letter constitute
the entire agreement among the parties hereto with respect to the subject
matter hereof and supersede all prior agreements and undertakings, both
written and oral, among the parties, or any of them, with respect to the
subject matter hereof.
 
  18. Amendment. This Agreement may not be amended except in writing signed by
each party to be bound thereby.
 
  19. Governing Law. The validity and interpretation of this Agreement shall
be governed by, and construed and enforced in accordance with, the laws of the
State of New York, without regard to conflicts of laws principles.
 
  20. Counterparts; Severability. This Agreement may be executed in two or
more separate counterparts, each of which shall be deemed an original, but all
of which together shall constitute one and the same instrument. Any term or
provision of this Agreement which is invalid or unenforceable in any
jurisdiction shall, as to such jurisdiction, be ineffective to the extent of
such invalidity or unenforceability without rendering invalid or unenforceable
the remaining terms and provisions of this Agreement or affecting the validity
or enforceability of any of the terms or provisions of this Agreement in any
other jurisdiction.
 
  21. Parties in Interest. This Agreement, including rights to indemnity and
contribution hereunder, shall be binding upon and inure solely to the benefit
of each party hereto, the Indemnified Persons and their respective successors,
heirs and assigns, and nothing in this Agreement, express or implied, is
intended to or shall confer upon any other person any right, benefit or remedy
of any nature whatsoever under or by reason of this Agreement.
 
  Please indicate your willingness to act as Dealer Manager and your
acceptance of the foregoing provisions by signing in the space provided below
for that purpose and returning to us a copy of this Agreement so signed,
whereupon this Agreement and your acceptance shall constitute a binding
agreement between us.
 
                                         Very truly yours,
 
                                         Laboratory Corporation of America
                                         Holdings
 
                                         By: __________________________________
                                           Name:
                                           Title:
 
Accepted as of the date first above written:
 
Credit Suisse First Boston Corporation
 
By: _________________________________
  Name:
  Title:
 
 
                                      14
<PAGE>
 
                                                                      EXHIBIT A
 
                         OPINION OF BRADFORD T. SMITH
 
  Matters to be addressed in the opinion of Bradford T. Smith, Executive Vice
President, General Counsel, Corporate Compliance Officer and Secretary of the
Company:
 
    (a) The Company is a corporation duly organized, validly existing and in
  good standing under the laws of the jurisdiction of its incorporation, with
  corporate power and authority to own, lease and operate its properties and
  to conduct its business as presently conducted and as described in the
  Prospectus, and to the best of such counsel's knowledge the Company is duly
  qualified to transact business and is in good standing in each jurisdiction
  in which the conduct of its business or the ownership or leasing of
  property requires such qualification, except to the extent that the failure
  to be so qualified or to be in good standing, considering all such cases in
  the aggregate, would not have a Material Adverse Effect.
 
    (b) Each of the Company's subsidiaries is duly organized, validly
  existing and in good standing in the jurisdiction of its incorporation,
  with corporate power and authority to own, lease and operate its respective
  properties and to conduct its respective business as presently conducted
  and as described in the Prospectus, and to the best of such counsel's
  knowledge each of the Company's subsidiaries is duly qualified to transact
  business and is in good standing in each jurisdiction in which the conduct
  of its business or the ownership or leasing of property requires such
  qualification, except to the extent that the failure to be so qualified or
  to be in good standing, considering all such cases in the aggregate, would
  not have a Material Adverse Effect.
 
    (c) The Company has all corporate power and authority necessary to
  commence and consummate the Rights Offering, to execute and deliver this
  Agreement, the Engagement Letter and the Indenture and to perform its
  obligations under this Agreement, the Engagement Letter and the Indenture.
  This Agreement, the Engagement Letter and the Indenture have been duly
  authorized, executed and delivered by the Company. Subject to action by the
  Company to authorize the exchange of Notes for Series A Exchangeable
  Preferred Stock, the execution and delivery by the Company of the Notes
  have been duly authorized by the Company.
 
    (d) The Rights Offering, the issuance and sale of shares of Preferred
  Stock pursuant to the Rights Offering, and the execution, delivery and
  performance of this Agreement by the Company will not (i) result in a
  violation of any of the provisions of the certificate of incorporation or
  by-laws of the Company or any of its subsidiaries or (ii) to the best of
  such counsel's knowledge result in a breach of any of the material terms or
  provisions of, or constitute a default (with or without due notice or lapse
  of time) under, any loan or credit agreement, indenture, deed of trust,
  mortgage, note, lease or other agreement or instrument to which the Company
  or any of its subsidiaries is a party or by which any of them or any of
  their respective properties or assets is or may be bound, except as to any
  such violation, breach or default which would not have a Material Adverse
  Effect or materially adversely affect the ability of the Company to
  execute, deliver and perform this Agreement or to commence and consummate
  the Rights Offering in accordance with its terms.
 
    (e) There is no action, suit or proceeding before or by the Commission or
  any Other Agency, that is now pending, or to the best of such counsel's
  knowledge, threatened against or affecting the Company or any of its
  subsidiaries, which is required to be disclosed in the Prospectus which is
  not disclosed therein, or which would materially adversely affect the
  ability of the Company to execute, deliver and perform this Agreement or to
  consummate the Rights Offering in accordance with its terms; and there are
  no contracts or other documents to which the Company or any of its
  subsidiaries is a party which are required to be filed as exhibits to the
  Registration Statement which have not been so filed.
 
 
                                      A-1
<PAGE>
 
    (f) The authorized, issued and outstanding capital stock of the Company
  conforms to the description thereof in the Prospectus, and all of the
  issued and outstanding shares of capital stock of the Company have been
  duly authorized and validly issued, are fully paid and non-assessable and,
  except as described in the Prospectus, are not subject to any preemptive or
  similar rights.
 
    (g) The information set forth in the Prospectus under the captions "Risk
  Factors--Government Regulation," "Regulation and Reimbursement" and
  "Certain Relationships and Related Transactions" insofar as such statements
  purport to describe the provisions of law or documents referred to therein
  fairly present the information called for with respect to such laws and
  documents.
 
    (h) Each document filed pursuant to the Exchange Act and incorporated by
  reference in the Registration Statement or the Prospectus (except for
  financial statements, including the notes thereto and schedules thereto,
  and other financial and statistical data contained or incorporated by
  reference therein or omitted therefrom as to which such counsel need
  express no opinion) complied when so filed as to form in all material
  respects with the requirements of the Exchange Act and the applicable rules
  and regulations of the Commission thereunder.
 
  Such counsel shall also advise that he has not himself checked the accuracy
or completeness of, or otherwise verified, the information furnished with
respect to other matters in the Registration Statement and the Prospectus, but
has generally reviewed and discussed with certain officers and other
representatives of the Company, its independent public accountants and your
representatives and counsel the information furnished, whether or not subject
to his check or verification. On the basis of such review and discussion, but
without independent check or verification, except as stated, nothing came to
his attention that causes him to believe that (except for the financial
statements, including the notes thereto and schedules thereto, and other
financial and statistical data contained or incorporated by reference therein
or omitted therefrom and the Statement of Eligibility (Form T-1) included as
an exhibit to the Registration Statement, as to which he need express no
opinion) as of its effective date, the Registration Statement contained an
untrue statement of a material fact or omitted to state a material fact
required to be stated therein or necessary to make the statements therein not
misleading, or that the Prospectus, as of the date hereof, included or
includes an untrue statement of a material fact or omitted or omits to state a
material fact necessary in order to make the statements therein, in the light
of the circumstances under which they were made, not misleading.
 
                                      A-2
<PAGE>
 
                                                                      EXHIBIT B
 
  Matters to be addressed in the opinion of Davis Polk & Wardwell, special
counsel to the Company:
 
    (a) The Registration Statement is effective under the Securities Act and,
  to the best of such counsel's knowledge, no stop order suspending the
  effectiveness of the Registration Statement has been issued under the
  Securities Act and no proceedings for that purpose have been instituted or
  threatened by the Commission.
 
    (b) This Agreement has been duly authorized, executed and delivered by
  the Company.
 
    (c) The Indenture has been qualified under the Trust Indenture Act of
  1939, as amended.
 
    (d) When the Indenture is executed and delivered by the Company and
  assuming the Indenture has been duly authorized, executed and delivered by
  the Trustee, the Indenture will constitute a legal, valid and binding
  obligation of the Company enforceable against the Company in accordance
  with its terms, except (i) as such enforcement may be limited by
  bankruptcy, insolvency, reorganization, moratorium or similar laws
  affecting creditors' rights and remedies generally and (ii) as such
  enforcement may be limited by general principles of equity, regardless of
  whether enforcement is sought in a proceeding at law or in equity.
 
    (e) If and when issued in accordance with the provisions of the Series A
  Certificate of Designation and the Indenture (when the Indenture is
  executed and delivered by the Company and assuming it has been duly
  authorized, executed and delivered by the Trustee) and approved by the
  Board of Directors of the Company, and assuming the Notes have been duly
  authorized, executed and authenticated in accordance with the provisions of
  the Indenture, the Notes will constitute legal, valid and binding
  obligations of the Company enforceable against the Company in accordance
  with their terms, except (i) as such enforcement may be limited by
  bankruptcy, insolvency, reorganization, moratorium or similar laws
  affecting creditors' rights and remedies generally and (ii) as such
  enforcement may be limited by general principles of equity, regardless of
  whether enforcement is sought in a proceeding at law or in equity.
 
    (f) The Registration Statement, as of the effective date, and the
  Prospectus, as of its date (except for financial statements, including the
  notes thereto and schedules thereto and other financial and statistical
  data contained or incorporated by reference therein, or omitted therefrom
  and the Statement of Eligibility (Form T-1) included as an exhibit to the
  Registration Statement as to which such counsel need express no opinion)
  complied as to form in all material respects with the requirements of the
  Securities Act and the applicable rules and regulations of the Commission
  thereunder.
 
    (g) The information in the Prospectus under the captions "Description of
  the Amended Credit Agreement," "Description of Capital Stock," "Description
  of Rights Offering," "Description of Preferred Stock," "Description of the
  Notes" and "Certain Federal Income Tax Consequences" insofar as such
  statements purport to describe the provisions of law or documents referred
  to therein, fairly present the information called for with respect to such
  laws and documents.
 
    (h) The Rights Offering, the Preferred Stock, the Common Stock and the
  Notes conform in all material respects to the descriptions thereof
  contained in the Registration Statement.
 
    (i) The terms of the Rights Offering, the issuance and sale of shares of
  Preferred Stock pursuant to the Rights Offering, the issuance of the Notes
  in exchange for Series A Exchangeable Preferred Stock pursuant to the
  Series A Certificate of Designation and the Indenture, the issuance of
  Conversion Shares upon conversion of the Preferred Stock and Notes and the
  execution, delivery and performance of this Agreement by the Company,
  comply in all material respects with all applicable requirements of Federal
  and New York law, including, without limitation, any administrative
  regulation, and no consent, authorization, approval, order, exemption,
  registration, qualification or other action of,
 
                                      B-1
<PAGE>
 
  or filing with, the Commission or any Other Agency is required in
  connection with the execution, delivery and performance of this Agreement
  by the Company or the commencement or consummation by the Company of the
  Rights Offering, except such as may be required and have been obtained
  under the Securities Act and the rules and regulations thereunder, under
  state securities or Blue Sky laws and under the Trust Indenture Act of
  1939, as amended, or where the failure to obtain or make such consent,
  authorization, approval, order, exemption, registration, qualification, or
  other action or filing or notification would not materially adversely
  affect the ability of the Company to execute, deliver and perform this
  Agreement or to commence and consummate the Rights Offering in accordance
  with its terms.
 
    (j) The issuance of the Preferred Stock has been duly and validly
  authorized and upon the proper filing with the Secretary of State of the
  State of Delaware of the Certificate of Designation relating to such series
  of Preferred Stock when issued and delivered against payment therefor in
  accordance with the terms of the Rights Offering, the Preferred Stock will
  be duly and validly issued, fully paid and non-assessable, with no personal
  liability attaching to the ownership thereof. Following approval by the
  stockholders of the Company of the Charter Amendment and the filing thereof
  with the Secretary of State of the State of Delaware there will be
  sufficient authorized shares of preferred stock of the Company to permit
  payment of dividends on the Series B PIK Preferred Stock and there will be
  sufficient authorized shares of Common Stock to permit conversion of the
  Preferred Stock and the Notes in accordance with their terms. Such
  Conversion Shares, if and when issued upon such conversion in accordance
  with the provisions of the Preferred Stock or the Notes, as the case may
  be, will be validly issued, fully paid, non-assessable and not subject to
  any statutory preemptive or similar statutory rights.
 
    (k) The Company is not, and following consummation of the Rights Offering
  will not be, an "investment company" under the Investment Company Act of
  1940, as amended, and the rules and regulations promulgated by the
  Commission thereunder.
 
  Such counsel shall also advise that they have not themselves checked the
accuracy or completeness of, or otherwise verified, the information furnished
with respect to other matters in the Registration Statement and the
Prospectus, but have generally reviewed and discussed with certain officers
and other representatives of the Company, its independent public accountants
and your representatives and counsel the information furnished, whether or not
subject to their check or verification. On the basis of such review and
discussion, but without independent check or verification, except as stated,
nothing came to their attention that causes them to believe that (except for
the financial statements, including the notes thereto and schedules thereto,
and other financial and statistical data contained or incorporated by
reference therein or omitted therefrom and the Statement of Eligibility (Form
T-1) included as an exhibit to the Registration Statement, as to which they
need express no opinion) as of its effective date, the Registration Statement
contained an untrue statement of a material fact or omitted to state a
material fact required to be stated therein or necessary to make the
statements therein not misleading, or that the Prospectus, as of the date
hereof, included or includes an untrue statement of a material fact or omitted
or omits to state a material fact necessary in order to make the statements
therein, in the light of the circumstances under which they were made, not
misleading.
 
 
                                      B-2
<PAGE>
 
                                                                      EXHIBIT C
 
                         FORM OF OFFICER'S CERTIFICATE
 
  A duly authorized officer of the Company shall have furnished to the Dealer
Manager a certificate, dated the Record Date, in form and substance reasonably
satisfactory to the Dealer Manager to the effect that, to the best of his
knowledge after reasonable investigation:
 
    1. The representations and warranties of the Company set forth in the
  Dealer Manager Agreement are true and correct in all material respects as
  of the Record Date, and the Company has performed all of its obligations
  under the Dealer Manager Agreement to be performed at or prior to the
  Record Date in all material respects.
 
    2. From the date of the Dealer Manager Agreement through the Record Date,
  there has been no amendment to the Registration Statement other than any
  amendments as to which you have been notified and provided copies and no
  stop order suspending the effectiveness of the Registration Statement has
  been issued and no proceeding for such purpose has been initiated or
  threatened by the Commission.
 
                                      C-1

<PAGE>
 
                                                                    EXHIBIT 4.3
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
 
                  LABORATORY CORPORATION OF AMERICA HOLDINGS
                                    ISSUER,
 
                                      AND
 
                               ----------------
 
                  FIRST UNION NATIONAL BANK OF NORTH CAROLINA
                                    TRUSTEE
 
                               ----------------
 
                                   INDENTURE
 
 
                              DATED AS OF
 
                               ----------------
 
                                 $
 
                   % CONVERTIBLE SUBORDINATED NOTES DUE 2012
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                             CROSS-REFERENCE TABLE
 
<TABLE>
<CAPTION>
                                                                       INDENTURE
 TIA SECTION                                                            SECTION
 -----------                                                           ---------
 <C>     <S>                                                           <C>
 310 (a)  (1)........................................................       8.10
     (a)  (2)........................................................       8.10
     (a)  (3)........................................................       N.A.
     (a)  (4)........................................................       N.A.
     (a)  (5)........................................................       8.10
     (b)     ........................................................       8.8;
                                                                           8.10;
                                                                            12.2
     (c)     ........................................................       N.A.
  311(a)     ........................................................       8.11
     (b)     ........................................................       8.11
     (c)     ........................................................       N.A.
  312(a)     ........................................................        2.5
     (b)     ........................................................       12.3
     (c)     ........................................................       12.3
  313(a)     ........................................................        8.6
     (b)  (1)........................................................        8.6
     (b)  (2)........................................................        8.6
     (c)     ........................................................       8.6;
                                                                            12.2
     (d)     ........................................................        8.6
  314(a)     ........................................................       5.6;
                                                                            5.7;
                                                                             8.6
     (b)     ........................................................      N.A.;
                                                                            11.4
     (c)  (1)........................................................       2.2;
                                                                            8.2;
                                                                            12.4
     (c)  (2)........................................................       8.2;
                                                                            12.4
     (c)  (3)........................................................       N.A.
     (d)     ........................................................       N.A.
     (e)     ........................................................       12.5
     (f)     ........................................................       N.A.
  315(a)     ........................................................     8.1(b)
     (b)     ........................................................       8.5;
                                                                            8.6;
                                                                            12.2
     (c)     ........................................................     8.1(a)
     (d)     ........................................................       2.8;
                                                                           7.11;
                                                                       8.1(b)(c)
     (e)     ........................................................       7.13
  316(a)  (last sentence)............................................        2.9
     (a)  (1)(A).....................................................       7.11
     (a)  (1)(B).....................................................       7.12
</TABLE>
<PAGE>
 
<TABLE>
<CAPTION>
                                                                       INDENTURE
 TIA SECTION                                                            SECTION
 -----------                                                           ---------
 <C>    <S>                                                            <C>
    (a)  (2).........................................................    N.A.
    (b)     .........................................................    7.7;
                                                                         7.12
    (c)     .........................................................    10.4
 317(a)  (1).........................................................     7.3
    (a)  (2).........................................................     7.4
    (b)     .........................................................     2.4
 318(a)     .........................................................    12.1
</TABLE>
- --------
N.A. means Not Applicable.
Note: This Cross-Reference Table shall not, for any purpose, be deemed to be a
part of the Indenture.
 
<PAGE>
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                       PAGE
                                                                                       ----
                                   ARTICLE I
<S>                                                                                     <C> 
DEFINITIONS AND INCORPORATION BY REFERENCE...........................................     1
SECTION 1.1   Definitions.............................................................    1
SECTION 1.2   Incorporation by Reference of TIA.......................................    7
SECTION 1.3   Rules of Construction...................................................    7
<CAPTION>  
                                   ARTICLE II
 
THE SECURITIES.......................................................................     8
SECTION 2.1   Form and Dating.........................................................    8
SECTION 2.2   Execution and Authentication............................................    8
SECTION 2.3   Registrar and Paying Agent..............................................    9
SECTION 2.4   Paying Agent to Hold Assets in Trust....................................    9
SECTION 2.5   Securityholder Lists....................................................   10
SECTION 2.6   Transfer and Exchange...................................................   10
SECTION 2.7   Replacement Securities..................................................   11
SECTION 2.8   Outstanding Securities..................................................   12
SECTION 2.9   Treasury Securities.....................................................   12
SECTION 2.10  Temporary Securities....................................................   12
SECTION 2.11  Cancellation............................................................   12
SECTION 2.12  Defaulted Interest......................................................   13
SECTION 2.13  CUSIP Numbers...........................................................   14
SECTION 2.14  Form of Legend for Global Securities....................................   14
<CAPTION>  
                                  ARTICLE III
 
REDEMPTION...........................................................................    14
SECTION 3.1   Right of Redemption.....................................................   14
SECTION 3.2   Notices to Trustee......................................................   14
SECTION 3.3   Selection of Securities to Be Redeemed..................................   15
SECTION 3.4   Notice of Redemption....................................................   15
SECTION 3.5   Effect of Notice of Redemption..........................................   16
SECTION 3.6   Deposit of Redemption Price.............................................   16
SECTION 3.7   Securities Redeemed in Part.............................................   16
<CAPTION>  
                                   ARTICLE IV
CONVERSION OF SECURITIES.............................................................    17
SECTION 4.1   Right of Conversion.....................................................   17
SECTION 4.2   Issuance of Common Stock; Time of Conversion............................   17
SECTION 4.3   No Adjustments in Respect of Interest or Dividends......................   18
SECTION 4.4   Adjustment of Conversion Rate...........................................   18
SECTION 4.5   No Fractional Shares ...................................................   21
SECTION 4.6   Reclassification, Consolidation, Merger or Sale of Assets...............   21
SECTION 4.7   Prior Notice of Certain Events..........................................   21
SECTION 4.8   Shares to be Reserved; Accounting Treatment of Consideration............   22
SECTION 4.9   Registration and Listing of Shares......................................   22
SECTION 4.10  Taxes and Charges.......................................................   23
SECTION 4.11  Trustee and Conversion Agents Not Liable................................   23
SECTION 4.12  Special Conversion Rights...............................................   23
SECTION 4.13  Limitations on Adjustment of Conversion Price...........................   24
</TABLE>
 
 
                                      (i)
<PAGE>

<TABLE>
<CAPTION>
                                                                                       PAGE
                                                                                       ----
                                   ARTICLE V
<S>                                                                                   <C> 
COVENANTS............................................................................    24
SECTION 5.1   Payment of Securities...................................................   24
SECTION 5.2   Maintenance of Office or Agency.........................................   24
SECTION 5.3   Corporate Existence.....................................................   25
SECTION 5.4   Compliance Certificate; Notice of Default...............................   25
SECTION 5.5   Reports.................................................................   25
SECTION 5.6   Limitation on Status as Investment Company..............................   26
SECTION 5.7   Waiver of Stay, Extension or Usury Laws.................................   26
 
                                   ARTICLE VI
 
SUCCESSOR CORPORATION................................................................    26
SECTION 6.1   Limitation on Merger, Sale or Consolidation.............................   26
SECTION 6.2   Successor Corporation Substituted.......................................   27
 
                                  ARTICLE VII
 
EVENTS OF DEFAULT AND REMEDIES.......................................................    27
SECTION 7.1   Events of Default.......................................................   27
SECTION 7.2   Acceleration of Maturity Date; Rescission and Annulment.................   28
SECTION 7.3   Collection of Indebtedness and Suits for Enforcement by Trustee.........   28
SECTION 7.4   Trustee May File Proofs of Claim........................................   29
SECTION 7.5   Trustee May Enforce Claims Without Possession of Securities.............   29
SECTION 7.6   Priorities..............................................................   29
SECTION 7.7   Limitation on Suits.....................................................   30
SECTION 7.8   Unconditional Right of Holders to Receive Principal, Premium and
              Interest................................................................   30
SECTION 7.9   Rights and Remedies Cumulative..........................................   30
SECTION 7.10  Delay or Omission Not Waiver............................................   31
SECTION 7.11  Control by Holders......................................................   31
SECTION 7.12  Waiver of Past Default..................................................   31
SECTION 7.13  Undertaking for Costs...................................................   31
SECTION 7.14  Restoration of Rights and Remedies......................................   32
 
                                  ARTICLE VIII
 
TRUSTEE..............................................................................    32
SECTION 8.1   Duties of Trustee.......................................................   32
SECTION 8.2   Rights of Trustee.......................................................   33
SECTION 8.3   Individual Rights of Trustee............................................   34
SECTION 8.4   Trustee's Disclaimer....................................................   34
SECTION 8.5   Notice of Default.......................................................   34
SECTION 8.6   Reports by Trustee to Holders...........................................   34
SECTION 8.7   Compensation and Indemnity..............................................   34
SECTION 8.8   Replacement of Trustee..................................................   35
SECTION 8.9   Successor Trustee by Merger, Etc........................................   36
SECTION 8.10  Eligibility; Disqualification...........................................   36
SECTION 8.11  Preferential Collection of Claims Against Company.......................   36
SECTION 8.12  Money Held in Trust.....................................................   36
</TABLE>

                                      (ii)
<PAGE>
 
<TABLE>   
<CAPTION>
                                                                                        PAGE
                                                                                        ----
                                   ARTICLE IX
<S>                                                                                    <C> 
LEGAL DEFEASANCE AND COVENANT DEFEASANCE..............................................    36
SECTION 9.1    Option to Effect Legal Defeasance or Covenant Defeasance................   36
SECTION 9.2    Legal Defeasance and Discharge..........................................   36
SECTION 9.3    Covenant Defeasance.....................................................   37
SECTION 9.4    Conditions to Legal or Covenant Defeasance..............................   37
SECTION 9.5    Deposited Cash and U.S. Government Obligations to be Held in Trust;
               Other Miscellaneous Provisions..........................................   38
SECTION 9.6    Repayment to the Company................................................   38
SECTION 9.7    Reinstatement...........................................................   39
<CAPTION>  
                                   ARTICLE X
<S>                                                                                     <C>  
AMENDMENTS, SUPPLEMENTS AND WAIVERS ..................................................    39
SECTION 10.1   Supplemental Indentures Without Consent of Holders .....................   39
               Amendments, Supplemental Indentures and Waivers with Consent of
SECTION 10.2   Holders.................................................................   39
SECTION 10.3   Compliance with TIA ....................................................   40
SECTION 10.4   Revocation and Effect of Consents.......................................   40
SECTION 10.5   Notation on or Exchange of Securities...................................   41
SECTION 10.6   Trustee to Sign Amendments, Etc.........................................   41
<CAPTION>  
                                   ARTICLE XI
<S>                                                                                     <C>  
SUBORDINATION OF SECURITIES...........................................................    41
SECTION 11.1   Securities Subordinate to Senior Indebtedness...........................   41
SECTION 11.2   Payment Over of Proceeds Upon Dissolution, Etc..........................   41
SECTION 11.3   Prior Payment to Senior Indebtedness Upon Acceleration of Securities....   43
SECTION 11.4   No Payment When Senior Indebtedness in Default .........................   43
SECTION 11.5   Payment Permitted if No Default.........................................   43
SECTION 11.6   Restrictions on Acceleration and Exercise of Remedies...................   44
SECTION 11.7   Subrogation to Rights of Holders of Senior Indebtedness ................   44
SECTION 11.8   Provisions Solely to Define Relative Rights ............................   44
SECTION 11.9   Trustee to Effectuate Subordination.....................................   45
SECTION 11.10  No Waiver of Subordination Provisions...................................   45
SECTION 11.11  Notice to Trustee.......................................................   45
SECTION 11.12  Reliance on Judicial Order or Certificate of Liquidating Agent..........   46
SECTION 11.13  Trustee Not Fiduciary for Holders of Senior Indebtedness................   46
SECTION 11.14  Rights of Trustee as Holder of Senior Indebtedness; Preservation of
               Trustee's Rights .......................................................   46
SECTION 11.15  Article Applicable to Paying Agent .....................................   46
SECTION 11.16  Reinstatement of Senior Indebtedness....................................   46
<CAPTION>  
                                  ARTICLE XII
<S>                                                                                     <C>  
MISCELLANEOUS.........................................................................    47
SECTION 12.1   TIA Controls............................................................   47
SECTION 12.2   Notices.................................................................   47
SECTION 12.3   Communications by Holders with Other Holders............................   48
SECTION 12.4   Certificate and Opinion as to Conditions Precedent......................   48
SECTION 12.5   Statements Required in Certificate or Opinion ..........................   48
SECTION 12.6   Rules by Trustee, Paying Agent, Registrar...............................   48
SECTION 12.7   Non-Business Days ......................................................   48
</TABLE>    
 
                                     (iii)
<PAGE>
 
<TABLE>   
<CAPTION>
                                                                                        PAGE
                                                                                        ----
                             ARTICLE XII--Continues
<S>                                                                                     <C>  
SECTION 12.8   Governing Law...........................................................   48
SECTION 12.9   No Adverse Interpretation of Other Agreements ..........................   49
SECTION 12.10  No Recourse against Others..............................................   49
SECTION 12.11  Successors..............................................................   49
SECTION 12.12  Duplicate Originals.....................................................   49
SECTION 12.13  Severability ...........................................................   49
SECTION 12.14  Table of Contents, Headings, Etc. ......................................   49
SIGNATURES ...........................................................................    50
Exhibit A      FORM OF SECURITY........................................................  A-1
</TABLE>    
 
                                      (iv)
<PAGE>
 
  INDENTURE, dated as of               , by and between Laboratory Corporation
of America Holdings, a Delaware corporation (including its successors and
permitted assigns, the "Company") and First National Bank of North Carolina,
as Trustee (the "Trustee").
 
  Each party hereto agrees as follows for the benefit of each other party and
for the equal and ratable benefit of the Holders of the Company's   %
Convertible Subordinated Notes due 2012:
 
                                   ARTICLE I
 
                  DEFINITIONS AND INCORPORATION BY REFERENCE
 
  SECTION 1.1 Definitions.
 
  "Acceleration Notice" shall have the meaning specified in Section 7.2.
 
  "Affiliate" means any Person directly or indirectly controlling or
controlled by or under direct or indirect common control with the Company. For
purposes of this definition, the term "control" means the power to direct the
management and policies of a Person, directly or through one or more
intermediaries, whether through the ownership of voting securities, by
contract, or otherwise, provided, that no lender party to the Credit Agreement
(or any of its affiliates) shall be deemed to be an Affiliate of the Company
or any of its Subsidiaries solely by virtue of being party to the Credit
Agreement.
 
  "Agent" means any authenticating agent, Registrar, Paying Agent or transfer
agent.
 
  "Applicable Price" means (i) in the event of a Non-Stock Fundamental Change
in which the holders of the Common Stock receive only cash, the amount of cash
received by the holder of one share of Common Stock and (ii) in the event of
any other Non-Stock Fundamental Change or any Common Stock Fundamental Change,
the average of the Closing Prices for the Common Stock during the ten
consecutive Trading Days prior to and including the record date for the
determination of the holders of the Common Stock entitled to receive cash,
securities, property or other assets in connection with such Non-Stock
Fundamental Change or Common Stock Fundamental Change, or, if there is no such
record date, the date upon which the holders of the Common Stock shall have
the right to receive such cash, securities, property or other assets, in each
case, as adjusted in good faith by the Board of Directors or the Company to
approximately reflect any of the events referred to in clauses (i) through (v)
of Section 4.4.
 
  "Bankruptcy Law" means Title 11, U.S. Code, or any similar Federal, state or
foreign law for the relief of debtors.
 
  "Board of Directors" means, with respect to any Person, the Board of
Directors of such Person or any committee of the Board of Directors of such
Person authorized, with respect to any particular matter, to exercise the
power of the Board of Directors of such Person.
 
  "Board Resolution" means, with respect to any Person, a duly adopted
resolution of the Board of Directors of such Person.
 
  "Business Day" means each Monday, Tuesday, Wednesday, Thursday and Friday
which is not a day on which banking institutions in New York, New York or
Charlotte, North Carolina are authorized or obligated by law or executive
order to close.
 
  "Capital Stock" means, with respect to any corporation, any and all shares,
interests, rights to purchase (other than convertible or exchangeable
indebtedness), warrants, options, participations or other equivalents of or
interests (however designated) in stock issued by that corporation.
 
  "Cash" or "cash" means such coin or currency of the United States of America
as at the time of payment shall be legal tender for the payment of public and
private debts.
<PAGE>
 
  "Closing Price" of any security means on any day the last reported sale
price regular way on such day or in case no sale takes place on such day, the
average of the reported closing bid and asked prices regular way in each case
on the New York Stock Exchange, Inc. or, if the security is not quoted on such
system, on the principal national securities exchange or quotation system on
which such security is listed or admitted to trading or quoted, or, if not
listed or admitted to trading on any national securities exchange or quotation
system, the average of the closing bid and asked prices in the over-the-
counter market on such day as reported by the National Quotation Bureau
Incorporated, or a similarly generally accepted reporting service, or, if not
so available in such manner, as furnished by any New York Stock Exchange
Member firm selected from time to time by the Board of Directors for that
purpose.
 
  "Common Stock" initially means the class designated as common stock, par
value $.01 per share, of the Company as of the date hereof, subject to
adjustment as provided in Article IV.
 
  "Common Stock Fundamental Change" means any Fundamental Change in which more
than 50% of the value (as determined in good faith by the Board of Directors
of the Company) of the consideration received by holders of Common Stock
consists of common stock that for each of the ten consecutive Trading Days
referred to with respect to such Fundamental Change in the definition of
"Applicable Price" has been admitted for listing or admitted for listing
subject to notice of issuance on a national securities exchange or quoted on
the Nasdaq National Market, provided, however, that a Fundamental Change shall
not be a Common Stock Fundamental Change unless either (i) the Company
continues to exist after the occurrence of such Fundamental Change and the
outstanding Securities continue to exist as outstanding Securities or (ii) not
later than the occurrence of such Fundamental Change, the obligations of the
Company with respect to the outstanding Securities are expressly assumed by a
corporation succeeding to the business of the Company in accordance with the
provisions of Article VI hereof.
 
  "Company Request" means a written request signed in the name of the Company
by its Chairman of the Board, its President or a Vice President, and by its
Secretary or an Assistant Secretary, and delivered to the Trustee.
 
  "Covenant Defeasance" shall have the meaning specified in Section 9.3.
 
  "Credit Agreement" means the Amended and Restated Credit Agreement dated as
of March 31,1997 by and among the Company, certain financial institutions and
Credit Suisse First Boston Corporation, as agent, including any related notes,
guarantees, collateral documents, instruments and agreements executed in
connection therewith, as such credit agreement and/or related documents may be
amended, restated, supplemented, renewed, replaced or otherwise modified from
time to time whether or not with the same agent, trustee, representative
lenders or holders, and, subject to the proviso to the next succeeding
sentence, irrespective of any changes in the terms and conditions thereof.
Without limiting the generality of the foregoing, the term "Credit Agreement"
shall include any amendment, amendment and restatement, renewal, extension,
restructuring, supplement or modification to any Credit Agreement and all
refundings, refinancings and replacements of any Credit Agreement, including
any agreement (i) extending the maturity of any indebtedness incurred
thereunder or contemplated thereby, (ii) adding or deleting borrowers or
guarantors thereunder, so long as borrowers and issuers include one or more of
the Company and its Subsidiaries and their respective successors and assigns,
(iii) increasing the amount of indebtedness incurred thereunder or available
to be borrowed thereunder, or (iv) otherwise altering the terms and conditions
thereof in a manner not prohibited by the terms hereof.
 
  "Current Market Price Per Share" shall mean, as to the Common Stock on any
date in question, the average of the daily Closing Prices for the five
consecutive Trading Days prior to and including the date in question;
provided, however, that:
 
    (i) if the Ex Date for any event (other than the issuance or distribution
  requiring such computation) that required an adjustment to the conversion
  price pursuant to subparagraphs (i), (ii), (iii), (iv) or (v)
 
                                       2
<PAGE>
 
  of Section 4.4 ("Other Event") occurs after the fifth Trading Day prior to
  the day in question and prior to the Ex Date for the issuance or
  distribution requiring such computation (the "Current Event"), the Closing
  Price for each Trading Day prior to the Ex Date for such Other Event shall
  be adjusted by multiplying such Closing Price by the same fraction by which
  the conversion price is so required to be adjusted as a result of such
  Other Event,
 
    (ii) if the Ex Date for any Other Event occurs after the Ex Date for the
  Current Event and on or prior to the date in question, the Closing Price
  for each Trading Day on and after the Ex Date for such Other Event shall be
  adjusted by multiplying such Closing Price by the reciprocal of the
  fraction by which the conversion price is so required to be adjusted as a
  result of such Other Event,
 
    (iii) if the Ex Date for any Other Event occurs on the Ex Date for the
  Current Event, one of those events, as determined by the Company, shall be
  deemed for purposes of clauses (i) and (ii) of this proviso to have an Ex
  Date occurring prior to the Ex Date for the other of those events, and
 
    (iv) if the Ex Date for the Current Event is on or prior to the date in
  question, then after taking into account any adjustment required pursuant
  to clause (ii) of this proviso, the Closing Price for each Trading Day on
  or after such Ex Date shall be adjusted by adding thereto the amount of any
  cash and the fair market value on the date in question (as determined in
  good faith by the Board of Directors in a manner consistent with any
  determination of such value for purposes of paragraph (iv) or (v) of
  Section 4.4, whose determination shall be conclusive and described in a
  resolution of the Board of Directors) of the portion of the rights,
  warrants, evidences of indebtedness, shares of capital stock or assets
  being distributed applicable to one share of Common Stock.
 
  "Custodian" means any receiver, trustee, assignee, liquidator, sequestrator
or similar official under any Bankruptcy Law.
 
  "Default" means any event which is, or after notice or passage of time or
both would become, an Event of Default.
 
  "Defaulted Interest" shall have the meaning specified in Section 2.12.
 
  "Definitive Securities" means Securities that are in the form of Security
attached hereto as Exhibit A.
 
  "Depositary" means, with respect to any Securities issuable or issued in
whole or in part in the form of one or more Global Securities, the clearing
agency registered under the Securities Exchange Act of 1934 and any other
applicable statute or regulation specified for that purpose, with respect to
such Securities. If at any time there is more than one such Person,
"Depositary" shall mean, with respect to any Securities, the qualifying entity
which has been appointed with respect to such Securities.
 
  "Event of Default" shall have the meaning specified in Section 7.1.
 
  "Ex Date" shall mean (i) when used with respect to any issuance or
distribution, means the first date on which the Common Stock trades regular
way on the relevant exchange or in the relevant market from which the Closing
Price was obtained without the right to receive such issuance or distribution
and (ii) when used with respect to any subdivision or combination of shares of
Common Stock, means the first date on which the Common Stock trades regular
way on such exchange or in such market after the time at which such
subdivision or combination becomes effective.
 
  "Exchange Act" means the Securities Exchange Act of 1934, as amended, and
the rules and regulations promulgated by the SEC thereunder.
 
  "Fundamental Change" means the occurrence of any transaction or event in
connection with a plan pursuant to which all or substantially all of the
Common Stock shall be exchanged for, converted into, acquired for or
constitute solely the right to receive cash, securities, property or other
assets (whether by
 
                                       3
<PAGE>
 
means of an exchange offer, liquidation, tender offer, consolidation, merger,
combination, reclassification, recapitalization or otherwise) provided, in the
case of a plan involving more than one such transaction or event, for purposes
of adjustment of the conversion price, such Fundamental Change shall be deemed
to have occurred when substantially all of the Common Stock of the Company
shall be exchanged for, converted into, or acquired for or constitute solely
the right to receive cash, securities, property or other assets, but the
adjustment shall be based upon the highest weighted average per share
consideration which a holder of Common Stock could have received in such
transactions or events as a result of which more than 50% of the Common Stock
of the Company shall have been exchanged for, converted into, or acquired for
or constitute solely the right to receive cash, securities, property or other
assets.
 
  "GAAP" means United States generally accepted accounting principles set
forth in the opinions and pronouncements of the Accounting Principles Board of
the American Institute of Certified Public Accountants and statements and
pronouncements of the Financial Accounting Standards Board or in such other
statements by such other entity as approved by a significant segment of the
accounting profession as in effect on the Issue Date.
 
  "Global Security" means a Security bearing the legend required by Section
2.14 evidencing all or part of the Securities, issued to the Depositary or its
nominee and registered in the name of such Depositary or nominee.
 
  "Holder" or "Securityholder" means the Person in whose name a Security is
registered on the Registrar's books.
 
  "Indenture" means this Indenture, as amended or supplemented from time to
time in accordance with the terms hereof.
 
  "Interest Payment Date" means the stated due date of an installment of
interest on the Securities.
 
  "Issue Date" means the date of first issuance of the Securities under this
Indenture.
 
  "Legal Defeasance" shall have the meaning specified in Section 9.2.
 
  "Lien" means, with respect to any real or personal property of a Person, any
mortgage, deed of trust, lien, pledge, charge, security interest or
encumbrance of any kind in respect of such property, whether or not filed,
recorded or otherwise perfected under applicable law (including any
conditional sale or other title retention agreement, any lease in the nature
thereof, any option or other agreement to sell or give a security interest in
and any filing of or agreement to give any financing statement under the
Uniform Commercial Code (or equivalent statutes) of any jurisdiction).
 
  "Material Subsidiary" of a Person means, at any date of determination, any
Subsidiary of such Person that, together with its Subsidiaries, (i) for the
most recent fiscal year of such Person accounted for more than 10% of the
consolidated revenues of such Person or (ii) as of the end of such fiscal
year, was the owner of more than 10% of the consolidated assets of such
Person, all as set forth on the most recently available consolidated financial
statements of such Person and its consolidated Subsidiaries for such fiscal
year prepared in conformity with GAAP.
 
  "Maturity", when used with respect to any Security, means the date on which
the principal of such Security becomes due and payable as therein or herein
provided, whether at the Stated Maturity or by declaration of acceleration,
call for redemption or otherwise.
 
  "Maturity Date" means, when used with respect to any Security, the date
specified on such Security as the fixed date on which the final installment of
principal of such Security is due and payable (in the absence of any
acceleration thereof pursuant to the provisions of this Indenture).
 
                                       4
<PAGE>
 
  "Non-Stock Fundamental Change" means any Fundamental Change other than a
Common Stock Fundamental Change.
 
  "Officer" means, with respect to the Company, the Chief Executive Officer,
the President, any Vice President, the Chief Financial Officer, the Treasurer,
the Controller, or the Secretary of the Company.
 
  "Officers' Certificate" means, with respect to the Company, a certificate
signed by two Officers or by an Officer and an Assistant Secretary of the
Company and otherwise complying with the requirements of Sections 12.4 and
12.5, and delivered to the Trustee or an Agent, as applicable.
 
  "Opinion of Counsel" means a written opinion from legal counsel who is
reasonably acceptable to the Trustee (which may include counsel to the Trustee
or the Company including an employee of the Company) or an Agent, as
applicable, complying with the requirements of Sections 12.4 and 12.5, and
delivered to the Trustee or an Agent, as applicable.
 
  "Outstanding" as used with reference to the Securities shall have the
meaning specified in Section 2.8 hereof.
 
  "Paying Agent" has the meaning specified in Section 2.3.
 
  "Person" or "person" means an individual, partnership, corporation,
unincorporated trust or joint venture, or a governmental agency or political
subdivision thereof.
 
  "Predecessor Security" of any particular Security means every previous
Security evidencing all or a portion of the same debt as that evidenced by
such particular Security, and, for the purposes of this definition, any
Security authenticated and delivered under Section 2.7 in exchange for or in
lieu of a mutilated, destroyed, lost or stolen Security shall be deemed to
evidence the same debt as the mutilated, destroyed, lost or stolen Security.
 
  "Property" means any right or interest in or to property or assets of any
kind whatsoever, whether real, personal or mixed and whether tangible or
intangible.
 
  "Purchaser Stock Price" means, with respect to any Common Stock Fundamental
Change, the average of the Closing Prices for the common stock received in
such Common Stock Fundamental Change for the ten consecutive Trading Days
prior to and including the record date for the determination of the holders of
Common Stock entitled to receive such common stock, or if there is no such
record date, the date upon which the holders of the Common Stock shall have
the right to receive such common stock, in each case, as adjusted in good
faith by the Board of Directors to appropriately reflect any of the events
referred to in clauses (i) through (v) of Section 4.4, provided, however, that
if no such Closing Prices exist, the Purchaser Stock Price shall be set at a
price determined in good faith by the Board of Directors of the Company.
 
  "Record Date" means a Record Date specified in the Securities whether or not
such Record Date is a Business Day.
 
  "Redemption Date," when used with respect to any Security to be redeemed,
means the date fixed for such redemption pursuant to Article III of this
Indenture and Paragraph 5 in the form of Security.
 
  "Redemption Price," when used with respect to any Security to be redeemed,
means the redemption price for such redemption pursuant to Paragraph 5 in the
form of Security, which shall include, without duplication, in each case,
accrued and unpaid interest to the Redemption Date (subject to the provisions
of Section 3.5).
 
  "Reference Market Price" shall mean $   (which is an amount equal to 66 2/3%
of the reported last sale price for the Common Stock on the New York Stock
Exchange on           , 1997) and in the event
 
                                       5
<PAGE>
 
of any adjustment to the conversion price other than as a result of a
Fundamental Change, the Reference Market Price shall also be adjusted so that
the ratio of the Reference Market Price to the conversion price after giving
effect to any such adjustment shall always be the same ratio of $   to the
initial conversion price of the Company's   % Series A Convertible
Exchangeable Preferred Stock set forth in the Registration Statement on Form
S-3 (File No. 333-22427), dated       , 1997 relating thereto.
 
  "Registrar" shall have the meaning specified in Section 2.3.
 
  "Regular Record Date" for the interest payable on any Interest Payment Date
on the Securities means the        ,         ,          or         (whether or
not a Business Day), as the case may be, next preceding such Interest Payment
Date.
 
  "SEC" means the Securities and Exchange Commission.
 
  "Securities" means, collectively, the Securities issued pursuant to this
Indenture.
 
  "Securities Act" means the Securities Act of 1933, as amended, and the rules
and regulations of the SEC promulgated thereunder.
 
  "Security Register" shall have the meaning specified in Section 2.3.
 
  "Securityholder" or "Holder" means any Person in whose name a Security is
registered on the Registrar's books.
 
  "Senior Indebtedness" means the principal of (premium, if any) and unpaid
interest on, and all other sums, whether direct or contingent including,
without limitation, costs and expenses of collection and enforcement
(including the reasonable fees and expenses of legal counsel engaged for such
purpose) payable by the Company relating to, the following (whether
outstanding at the date hereof or thereafter incurred or created): (a)
indebtedness of the Company for money borrowed (including purchase-money
obligations) evidenced by notes or other written obligations including,
without limitation, letters of credit and bankers acceptances, (b)
indebtedness of the Company evidenced by notes, debentures, bonds or other
securities issued under the provisions of an indenture or similar instrument,
(c) obligations of the Company as lessee under capitalized leases and under
leases of property made as part of any sale and leaseback transactions, (d)
indebtedness of others of any of the kinds described in the preceding clauses
(a) through (c) assumed or guaranteed by the Company and (e) renewals,
extensions and refundings of, and indebtedness and obligations of a successor
Person issued in exchange for or in replacement of, indebtedness or
obligations of the kinds described in the preceding clauses (a) through (d);
provided, however, that the following shall not constitute Senior
Indebtedness: (1) any indebtedness or obligation as to which, in the
instrument creating or evidencing the same or pursuant to which the same is
outstanding, it is expressly provided that such indebtedness or obligation is
subordinate in right of payment to all other indebtedness of the Company not
expressly subordinated to such indebtedness or obligation, (2) any
indebtedness or obligation which by its terms refers explicitly to the
Securities issued hereunder and states that such indebtedness or obligation
shall not be senior in right of payment thereto, (3) any indebtedness or
obligation of the Company in respect of the Securities and (4) any
indebtedness or obligation of the Company to any Subsidiary.
 
  "Special Record Date" for payment of any Defaulted Interest means a date
fixed by the Paying Agent pursuant to Section 2.12.
 
  "Stated Maturity," when used with respect to any of the Securities or any
installment of principal or interest thereon, means the date specified in such
Security as the fixed date on which the principal of such Security or such
installment of interest is due and payable.
 
                                       6
<PAGE>
 
  "Subsidiary" with respect to any Person, means (i) a corporation a majority
of whose Capital Stock with voting power, under ordinary circumstances, to
elect directors is at the time, directly or indirectly, owned by such Person,
by such Person and one or more Subsidiaries of such Person or by one or more
Subsidiaries of such Person, (ii) any other Person (other than a corporation)
in which such Person, one or more Subsidiaries of such Person, or such Person
and one or more Subsidiaries of such Person, directly or indirectly, at the
date of determination thereof has at least majority ownership interest, or
(iii) a partnership in which such Person or a Subsidiary of such Person is, at
the time, a general partner.
 
  "TIA" means the Trust Indenture Act of 1939, as amended, (15 U.S. Code
(S)(S) 77aaa-77bbbb), except as provided in Section 10.3, as in effect on the
date of the execution of this Indenture.
 
  "Trading Day" means a day on which securities traded on the national
securities exchange or quotation system or in the over-the-counter market used
to determine the Closing Price.
 
  "Trustee" means the party named as such in this Indenture until a successor
replaces it in accordance with the provisions of this Indenture and thereafter
means such successor.
 
  "Trust Officer" means any officer within the corporate trust division (or
any successor group) of the Trustee or any other officer of the Trustee
customarily performing functions similar to those performed by the Persons who
at that time shall be such officers, and also means, with respect to a
particular corporate trust matter, any other officer of the Trustee to whom
such trust matter is referred because of his knowledge of and familiarity with
the particular subject.
 
  "U.S. Government Obligations" means direct non-callable obligations of, or
noncallable obligations guaranteed by, the United States of America for the
payment of which obligation or guarantee the full faith and credit of the
United States of America is pledged.
 
  SECTION 1.2 Incorporation by Reference of TIA.
 
  Whenever this Indenture refers to a provision of the TIA, such provision is
incorporated by reference in and made a part of this Indenture. The following
TIA terms used in this Indenture have the following meanings:
 
  "Commission" means the SEC.
 
  "indenture securities" means the Securities.
 
  "indenture securityholder" means a Holder or a Securityholder.
 
  "indenture to be qualified" means this Indenture.
 
  "indenture trustee" or "institutional trustee" means the Trustee.
 
  "obligor" on the indenture securities means the Company and any other
obligor on the Securities.
 
  All other TIA terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule and not
otherwise defined herein have the meanings assigned to them thereby.
 
  SECTION 1.3 Rules of Construction.
 
  Unless the context otherwise requires:
 
    (1) a term has the meaning assigned to it;
 
    (2) an accounting term not otherwise defined has the meaning assigned to
       it in accordance with GAAP;
 
                                       7
<PAGE>
 
    (3) "or" is not exclusive;
 
    (4) words in the singular include the plural, and words in the plural
  include the singular;
 
    (5) provisions apply to successive events and transactions;
 
    (6) "herein," "hereof" and other words of similar import refer to this
  Indenture as a whole and not to any particular Article, Section or other
  subdivision; and
 
    (7) references to Sections or Articles means reference to such Section or
  Article in this Indenture, unless stated otherwise.
 
                                  ARTICLE II
 
                                THE SECURITIES
 
  SECTION 2.1 Form and Dating.
 
  The Securities and the Trustee's certificate of authentication, in respect
thereof, shall be substantially in the form of Exhibit A hereto, which Exhibit
is part of this Indenture. The Securities may have notations, legends or
endorsements required by law, stock exchange rules and regulations and
agreements to which the Company is subject or usage. The Company shall approve
the form of the Securities and any notation, legend or endorsement on them.
Each Security shall be dated the date of its authentication.
 
  The terms and provisions contained in the forms of Securities shall
constitute, and are hereby expressly made, a part of this Indenture and, to
the extent applicable, the Company and the Trustee, by their execution and
delivery of this Indenture, expressly agree to such terms and provisions and
to be bound thereby.
 
  SECTION 2.2 Execution and Authentication.
 
  Two Officers shall sign, or one Officer shall sign and one Officer shall
attest to, the Security for the Company by manual or facsimile signature.
 
  If an Officer whose signature is on a Security was an Officer at the time of
such execution but no longer holds that office at the time the Trustee
authenticates the Security, the Security shall be valid nevertheless and the
Company shall nevertheless be bound by the terms of the Securities and this
Indenture.
 
  A Security shall not be valid until an authorized signatory of the Trustee
manually signs the certificate of authentication on the Security but such
signature shall be conclusive evidence that the Security has been
authenticated pursuant to the terms of this Indenture.
 
  The Trustee shall authenticate or cause to be authenticated Securities for
original issue in the aggregate principal amount of up to $           . The
aggregate principal amount of Securities outstanding at any time may not
exceed $           , except as provided in Section 2.7. Upon the written order
of the Company in the form of an Officers' Certificate, the Trustee shall
authenticate Securities in substitution of Securities originally issued to
reflect any name change of the Company.
 
  The Trustee shall have the right to decline to authenticate and deliver any
Securities under this Section 2.2 if the Trustee, being advised by counsel,
determines that such action may not lawfully be taken or if the Trustee in
good faith shall determine that such action would expose the Trustee to
personal liability to existing Holders.
 
  The Trustee may appoint an authenticating agent acceptable to the Company to
authenticate Securities. Unless otherwise provided in the appointment, an
authenticating agent may authenticate
 
                                       8
<PAGE>
 
Securities whenever the Trustee may do so. Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent. An
authenticating agent has the same rights as an Agent to deal with the Company,
any Affiliate of the Company, or any of their respective Subsidiaries.
 
  Securities shall be issuable only in fully registered form, without coupons,
in denominations of $50 and integral multiples thereof.
 
  SECTION 2.3 Registrar and Paying Agent; Method of Payment.
 
  The Company shall maintain an office or agency in the Borough of Manhattan,
The City of New York, where Securities may be presented for registration of
transfer or exchange (the "Registrar") and an office or agency of the Company
where Securities may be presented for payment (the "Paying Agent") and where
notices and demands to or upon the Company in respect of the Securities may be
served. The Company may act as Registrar or Paying Agent, except that for the
purposes of Articles III and IX and as otherwise specified in this Indenture,
neither the Company nor any Affiliate of the Company shall act as Paying
Agent. The Registrar shall keep a register (the "Security Register") of the
Securities and of their transfer and exchange. The Company may have one or
more co-Registrars and one or more additional Paying Agents. The term
"Registrar" includes any co-registrar and the term "Paying Agent" includes any
additional Paying Agent.
 
  The Company shall enter into an appropriate written agency agreement with
any Agent (including the Paying Agent) not a party to this Indenture, which
agreement shall implement the provisions of this Indenture that relate to such
Agent, and shall furnish a copy of each such agreement to the Trustee. The
Company shall promptly notify the Trustee in writing of the name and address
of any such Agent. If the Company fails to maintain a Registrar or Paying
Agent, the Trustee shall act as such.
 
  The Company initially appoints the Trustee as Registrar, Paying Agent and
agent for service of notices and demands in connection with the Securities.
 
  The Company initially appoints The Depository Trust Company ("DTC") to act
as Depositary with respect to the Global Securities.
 
  Upon the occurrence of an Event of Default described in Section 7.1(4) or
(5), the Trustee shall, or upon the occurrence of any other Event of Default
by notice to the Company, the Registrar and the Paying Agent, the Trustee may,
assume the duties and obligations of the Registrar and the Paying Agent
hereunder.
 
  The Company shall pay interest on the Securities (except defaulted interest)
to the Persons who are the registered Holders at the close of business on the
       ,        ,          or         immediately preceding the Interest
Payment Date. Holders must surrender Securities to a Paying Agent to collect
principal payments. Except as provided below, the Company shall pay principal
and interest in such coin or currency of the United States of America as at
the time of payment shall be legal tender for payment of public and private
debts ("Cash"). The Securities will be payable as to principal, premium and
interest at the office or agency of the Company maintained for such purpose
within the Borough of Manhattan, the City and State of New York or, at the
option of the Company, payment of interest may be made by check mailed to the
Holders at their addresses set forth in the register of Holders.
 
  SECTION 2.4 Paying Agent to Hold Assets in Trust.
 
  The Company shall require each Paying Agent other than the Trustee to agree
in writing that such Paying Agent shall hold in trust for the benefit of
Holders or the Trustee all assets held by the Paying Agent for the payment of
principal of, premium, if any, or interest on, the Securities, and shall
notify the Trustee in writing of any Default in making any such payment. If
either of the Company or a Subsidiary of the Company acts as Paying Agent, it
shall segregate such assets and hold them as a separate trust fund for the
benefit of the Holders or the Trustee. The Company at any time may require a
Paying Agent to
 
                                       9
<PAGE>
 
distribute all assets held by it to the Trustee and account for any assets
disbursed and the Trustee may at any time during the continuance of any
payment Default or any Event of Default, upon written request to a Paying
Agent, require such Paying Agent to distribute all assets held by it to the
Trustee and to account for any assets distributed. Upon distribution to the
Trustee of all assets that shall have been delivered by the Company to the
Paying Agent, the Paying Agent (if other than the Company) shall have no
further liability for such assets.
 
  SECTION 2.5 Securityholder Lists.
 
  The Registrar shall preserve in as current a form as is reasonably
practicable the most recent list available to it of the names and addresses of
Holders and shall otherwise comply with TIA (S) 312(a). If the Trustee or any
Paying Agent is not the Registrar, the Company shall furnish to the Trustee on
or before the third Business Day preceding each Interest Payment Date and at
such other times as the Trustee or any such Paying Agent may request in
writing a list in such form and as of such date as the Trustee or any such
Paying Agent reasonably may require of the names and addresses of Holders and
the Company shall otherwise comply with TIA (S) 312(a).
 
  SECTION 2.6 Transfer and Exchange.
 
  When Securities are presented to the Registrar or a co-registrar with a
request to register, transfer or exchange them for an equal principal amount
of Securities of other denominations, the Registrar shall register the
transfer or make the exchange if its requirements for such transactions are
met, provided, however, that any Security presented or surrendered for
registration of transfer or exchange shall be duly endorsed or accompanied by
a written instruction of transfer in form satisfactory to the Registrar and
the Trustee duly executed by the Securityholder thereof or by his attorney
duly authorized in writing. To permit registrations of transfer and exchanges,
the Company shall issue and the Trustee shall authenticate Securities at the
Registrar's request, subject to such rules as the Trustee may reasonably
require.
 
  Neither the Company nor the Registrar shall be required (i) to issue,
register the transfer of or exchange Securities during a period beginning at
the opening of business on a Business Day 15 days before the day of any
selection of Securities for redemption under Section 3.1 and ending at the
close of business on the day of selection, (ii) to register the transfer of or
exchange any Security so selected for redemption in whole or in part, except
the unredeemed portion of any Security being redeemed in part or (iii) to
register the transfer or exchange of a Security between a Record Date and the
next succeeding Interest Payment Date.
 
  No service charge shall be made to any Securityholder for any registration
of transfer or exchange (except as otherwise expressly permitted herein), but
the Company may require payment of a sum sufficient to cover any transfer tax
or similar governmental charge payable in connection therewith (other than
such transfer tax or similar governmental charge payable upon exchanges
pursuant to Sections 2.10, 3.7 or 10.5 hereof, which shall be paid by the
Company).
 
  Prior to due presentment for registration of transfer of any Security, the
Trustee, any Agent and the Company may deem and treat the person in whose name
any Security is registered as the absolute owner of such Security for the
purpose of receiving payment of principal of and interest on such Security and
for all other purposes whatsoever, whether or not such Security is overdue,
and neither the Trustee, any Agent nor the Company shall be affected by notice
to the contrary.
 
  Each Global Security authenticated under this Indenture shall be registered
in the name of the Depositary designated for such Global Security or a nominee
thereof and delivered to such Depositary or a nominee thereof or custodian
therefor, and each such Global Security shall constitute a single Security for
all purposes of this Indenture.
 
                                      10
<PAGE>
 
  Any exchange of a Global Security for other Securities may be made in whole
or in part, and all Securities issued in exchange for a Global Security or any
portion thereof shall be registered in such names as the Depositary for such
Global Security shall direct.
 
  If at any time the Depositary for the Securities notifies the Company that
it is unwilling or unable to continue as Depositary for the Securities or if
at any time the Depositary for the Securities shall no longer be qualified to
serve as the Depositary, the Company shall appoint a successor Depositary with
respect to the Securities. If a successor Depositary for the Securities is not
appointed by the Company within 90 days after the Company receives such notice
or becomes aware of such ineligibility, the Company will execute, and the
Trustee, upon receipt of a Company Request for the authentication and delivery
of definitive Securities, will authenticate and deliver Securities of like
tenor and terms in definitive form in an aggregate principal amount equal to
the principal amount of the Global Security or Securities in exchange for such
Global Security or Securities.
 
  The Company may at any time and in its sole discretion determine that
Securities issued in the form of one or more Global Securities shall no longer
be represented by such Global Securities. In such event, the Company will
execute, and the Trustee, upon receipt of a Company Request for the
authentication and delivery of definitive Securities, will authenticate and
deliver Securities of like tenor and terms in definitive form in an aggregate
principal amount equal to the principal amount of the Global Security or
Securities in exchange for such Global Security or Securities in exchange for
such Global Security or Securities.
 
  Notwithstanding any other provision in this Indenture, no Global Security
may be transferred to, or registered or exchanged for Securities registered in
the name of, any Person other than the Depositary for such Global Security or
any nominee or successor thereof, and no such transfer may be registered,
unless (1) such Depositary (A) notifies the Company that it is unwilling or
unable to continue as Depositary for such Global Security or (B) ceases to be
qualified to serve as Depositary, (2) the Company executes and delivers to the
Trustee a Company Request that such Global Security shall be so transferable,
registrable and exchangeable, and such transfers shall be registrable, or (3)
there shall have occurred and be continuing an Event of Default.
Notwithstanding any other provision in this Indenture, a Global Security to
which the restriction set forth in the preceding sentence shall have ceased to
apply may be transferred only to, and may be registered and exchanged for
Securities registered only in the name or names of, such Person or Persons as
the Depositary for such Global Security shall have directed and no transfer
thereof other than such a transfer may be registered.
 
  Every Security authenticated and delivered upon registration of transfer, or
in exchange for or in lieu, of a Global Security to which the restriction set
forth in the first sentence of the preceding paragraph shall apply, whether
pursuant to this Section, Sections 2.7, 2.10 or 3.7 or otherwise, shall be
authenticated and delivered in the form of, and shall be, a Global Security
unless such Security is registered in the name of a Person other than the
Depositary for such Global Security or a nominee thereof.
 
  No Person entitled to any beneficial interest in any Global Security held on
its behalf by a Depositary or its nominee shall, as such, be entitled to have
any of the individual Securities represented by such Global Security
registered in their names, will not receive or be entitled to receive physical
delivery of such Securities in definitive form, or be considered Holders
thereof under this Indenture. None of the Company, the Trustee, any
authenticating agent, any Paying Agent or the Registrar will have any
responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests in a Global
Security or for maintaining, supervising or reviewing any records relating to
such beneficial ownership interests.
 
  SECTION 2.7 Replacement Securities.
 
  If a mutilated Security is surrendered to the Registrar or if the Holder of
a Security claims and submits an affidavit or other evidence, satisfactory to
the Registrar, to the Registrar to the effect that the Security has been lost,
destroyed or wrongfully taken, the Company shall issue and the Trustee or any
 
                                      11
<PAGE>
 
authenticating agent of the Trustee shall authenticate a replacement Security
if the Registrar's requirements are met. If required by the Trustee, the
Registrar or the Company, such Holder must provide an indemnity bond or other
indemnity, sufficient in the judgment of both the Company and the Registrar,
to protect the Company, the Trustee or any Agent from any loss which any of
them may suffer if a Security is replaced. The Company may charge such Holder
for its reasonable, out-of-pocket expenses in replacing a Security.
 
  Every replacement Security is an additional obligation of the Company.
 
  SECTION 2.8 Outstanding Securities.
 
  Securities "Outstanding" at any time are all the Securities that have been
authenticated by the Trustee except those cancelled by the Registrar, those
delivered to the Registrar for cancellation, and those described in this
Section 2.8 as not Outstanding. A Security does not cease to be Outstanding
because the Company or an Affiliate of the Company holds the Security, except
as provided in Section 2.9.
 
  If a Security is replaced pursuant to Section 2.7 (other than a mutilated
Security surrendered for replacement), it ceases to be Outstanding unless the
Registrar receives proof satisfactory to it that the replaced Security is held
by a bona fide purchaser. A mutilated Security ceases to be Outstanding upon
surrender of such Security and replacement thereof pursuant to Section 2.7.
 
  If on a Redemption Date or the Maturity Date the Paying Agent (other than
the Company or an Affiliate of the Company) holds Cash or U.S. Government
Obligations sufficient to pay all of the principal and interest and premium,
if any, due on the Securities payable on that date and payment of the
Securities called for redemption is not otherwise prohibited, then on and
after that date such Securities cease to be Outstanding and interest on them
ceases to accrue.
 
  SECTION 2.9 Treasury Securities.
 
  In determining whether the Holders of the required principal amount of
Securities have concurred in any direction, amendment, supplement, waiver or
consent, Securities owned by the Company or Affiliates of the Company shall be
disregarded, except that, for the purposes of determining whether the Trustee
shall be protected in relying on any such direction, amendment, supplement,
waiver or consent, only Securities that a Trust Officer of the Trustee knows
are so owned shall be disregarded.
 
  SECTION 2.10 Temporary Securities.
 
  Until Definitive Securities are ready for delivery, the Company may prepare
and the Trustee shall authenticate temporary Securities. Temporary Securities
shall be substantially in the form of Definitive Securities but may have
variations that the Company reasonably and in good faith considers appropriate
for temporary Securities. Except in the case of temporary Securities in global
form, which can be issued in accordance with the provisions thereof, if
temporary Securities are issued, the Company will cause definitive Securities
to be prepared without unreasonable delay. After the preparation of definitive
Securities, the temporary Securities shall be exchangeable for definitive
Securities upon surrender of the temporary Securities at any office or agency
of the Company designated pursuant to Section 5.2, without charge to the
Holder. Upon surrender for cancellation of any one or more temporary
Securities, the Company shall execute and the Trustee shall authenticate and
deliver in exchange therefor a like principal amount of definitive Securities
of authorized denominations. Until so exchanged, the temporary Securities
shall in all respects be entitled to the same benefits under this Indenture as
definitive Securities.
 
  SECTION 2.11 Cancellation.
 
  The Company at any time may deliver Securities to the Registrar for
cancellation. The Trustee and the Paying Agent shall forward to the Registrar
any Securities surrendered to them for registration of transfer, exchange or
payment. The Registrar, or at the direction of the Registrar, the Trustee or
the Paying Agent (other than the Company or an Affiliate of the Company), and
no one else, shall cancel all Securities
 
                                      12
<PAGE>
 
surrendered for registration of transfer, exchange, payment or cancellation.
Subject to Section 2.7, the Company may not issue new Securities to replace
Securities that have been paid or delivered to the Registrar for cancellation.
No Securities shall be authenticated in lieu of or in exchange for any
Securities cancelled as provided in this Section 2.11, except as expressly
permitted in the form of Securities and as permitted by this Indenture.
 
  SECTION 2.12 Defaulted Interest.
 
  Any interest on any Security which is payable, but is not punctually paid or
duly provided for, on any Interest Payment Date plus, to the extent lawful,
any interest payable on the defaulted interest (herein called "Defaulted
Interest") shall forthwith cease to be payable to the registered Holder on the
relevant Record Date, and such Defaulted Interest may be paid by the Company,
at its election in each case, as provided in clause (1) or (2) below:
 
    (1) The Company may elect to make payment of any Defaulted Interest to
  the Persons in whose names the Securities are registered at the close of
  business on a Special Record Date for the payment of such Defaulted
  Interest, which shall be fixed in the following manner. The Company shall
  notify the Trustee and the Paying Agent in writing of the amount of
  Defaulted Interest proposed to be paid on each Security and the date of the
  proposed payment, and at the same time the Company shall deposit with the
  Paying Agent an amount of Cash equal to the aggregate amount proposed to be
  paid in respect of such Defaulted Interest or shall make arrangements
  satisfactory to the Paying Agent for such deposit prior to the date of the
  proposed payment, such Cash when deposited to be held in trust for the
  benefit of the Persons entitled to such Defaulted Interest as provided in
  this clause (1). Thereupon the Paying Agent shall fix a Special Record Date
  for the payment of such Defaulted Interest which shall be not more than 15
  days and not less than 10 days prior to the date of the proposed payment
  and not less than 10 days after the receipt by the Paying Agent of the
  notice of the proposed payment. The Paying Agent shall promptly notify the
  Company and the Trustee of such Special Record Date and, in the name and at
  the expense of the Company, shall cause notice of the proposed payment of
  such Defaulted Interest and the Special Record Date therefor to be mailed,
  first-class postage prepaid, to each Holder at his address as it appears in
  the Security Register not less than 10 days prior to such Special Record
  Date. Notice of the proposed payment of such Defaulted Interest and the
  Special Record Date therefor having been mailed as aforesaid, such
  Defaulted Interest shall be paid to the Persons in whose names the
  Securities are registered on such Special Record Date and shall no longer
  be payable pursuant to the following clause (2).
 
    (2) The Company may make payment of any Defaulted Interest in any other
  lawful manner not inconsistent with the requirements of any securities
  exchange on which the Securities may be listed, and upon such notice as may
  be required by such exchange, if, after notice given by the Company to the
  Trustee and the Paying Agent of the proposed payment pursuant to this
  clause, such manner shall be deemed practicable by the Trustee and the
  Paying Agent.
 
  Subject to the foregoing provisions of this Section 2.12, each Security
delivered under this Indenture upon registration of transfer of or in exchange
for or in lieu of any other Security shall carry the rights to interest
accrued and unpaid, and to accrue, which were carried by such other Security.
 
  In the case of any Security which is converted after any Regular Record Date
and on or prior to the next succeeding Interest Payment Date (other than any
Security whose Maturity is prior to such Interest Payment Date), interest
whose Stated Maturity is on such Interest Payment Date shall be payable on
such Interest Payment Date notwithstanding such conversion, and such interest
(whether or not punctually paid or duly provided for) shall be paid to the
Person in whose name that Security (or one or more Predecessor Securities) is
registered at the close of business on such Regular Record Date. Except as
otherwise expressly provided in the immediately preceding sentence, in the
case of any Security which is converted, interest whose Stated Maturity is
after the date of conversion of such Security shall not be payable.
 
                                      13
<PAGE>
 
  SECTION 2.13 CUSIP Numbers.
 
  The Company in issuing the Securities may use "CUSIP" numbers (if then
generally in use), and, if so, the Trustee shall use "CUSIP" numbers in
notices of redemption as a convenience to Holders; provided that any such
notice may state that no representation is made as to the correctness of such
numbers either as printed on the Securities or as contained in any notice of a
redemption and that reliance may be placed only on the other identification
numbers printed on the Securities, and any such redemption shall not be
affected by any defect in or omission of such numbers.
 
  SECTION 2.14. Form of Legend for Global Securities.
 
  Every Global Security authenticated and delivered hereunder shall bear a
legend in substantially the following form:
 
  This Security is a Global Security within the meaning of the Indenture
  hereinafter referred to and is registered in the name of a Depositary
  or a nominee of a Depositary. This Security is exchangeable for
  Securities registered in the name of a Person other than the
  Depositary or its nominee only in the limited circumstances described
  in the Indenture and no transfer of this Security (other than a
  transfer of this Security as a whole by the Depositary to a nominee of
  the Depositary or by a nominee of the Depositary to the Depositary or
  another nominee of the Depositary) may be registered except in such
  limited circumstances.
 
                                  ARTICLE III
 
                                  REDEMPTION
 
  SECTION 3.1 Right of Redemption.
 
  Redemption of Securities, as permitted by any provision of this Indenture,
shall be made in accordance with such provision and this Article III. The
Company will not have the right to redeem any Securities prior to
            , 2000. On or after               , 2000, the Company will have
the right to redeem all or any part of the Securities, subject to the
limitations, if any, imposed by applicable law, at the Redemption Prices
specified in the form of Security attached as Exhibit A set forth therein
under the caption "Optional Redemption," in each case (subject to the right of
Holders of record on a Record Date to receive interest due on an Interest
Payment Date that is on or prior to such Redemption Date, and subject to the
provisions set forth in Section 3.5).
 
  SECTION 3.2 Notices to Trustee.
 
  If the Company elects to redeem Securities pursuant to Paragraph 5 of the
Securities, it shall notify the Trustee and the Paying Agent in writing of the
Redemption Date and the principal amount of Securities to be redeemed and
whether it wants the Paying Agent to give notice of redemption to the Holders.
 
  If the Company elects to reduce the principal amount of Securities to be
redeemed pursuant to Paragraph 5 of the Securities by crediting against any
such redemption Securities it has not previously delivered to the Trustee and
the Paying Agent for cancellation, it shall so notify the Trustee and the
Paying Agent of the amount of the reduction and deliver such Securities with
such notice.
 
  The Company shall give each notice to the Trustee and the Paying Agent
provided for in this Section 3.2 at least 30 days before the Redemption Date
(unless a shorter notice shall be satisfactory to the Trustee and the Paying
Agent). Any such notice may be cancelled at any time prior to notice of such
redemption being mailed to any Holder and shall thereby be void and of no
effect.
 
                                      14
<PAGE>
 
  SECTION 3.3 Selection of Securities to Be Redeemed.
 
  If less than all of the Securities are to be redeemed pursuant to Paragraph
5 of the Securities, the Trustee shall select the Securities to be redeemed by
lot or by such other method as the Trustee shall determine to be fair and
appropriate.
 
  The Trustee shall make the selection from the Securities outstanding and not
previously called for redemption and shall promptly notify the Company and
Paying Agent in writing of the Securities selected for redemption and, in the
case of any Security selected for partial redemption, the principal amount
thereof to be redeemed. Securities in denominations of $50 may be redeemed
only in whole. The Trustee may select for redemption portions (equal to $50 or
any integral multiple thereof) of the principal of Securities that have
denominations larger than $50. Provisions of this Indenture that apply to
Securities called for redemption also apply to portions of Securities called
for redemption.
 
  If any Security selected for partial redemption is converted in part before
termination of the conversion right with respect to the portion of the
Security so selected, the converted portion of such Security shall be deemed
(so far as may be) to be the portion selected for redemption. Securities which
have been converted during a selection of Securities to be redeemed shall be
treated by the Trustee as Outstanding for the purpose of such selection.
 
  SECTION 3.4 Notice of Redemption.
 
  At least 30 days but not more than 60 days before a Redemption Date, the
Company shall mail a notice of redemption by first class mail, postage
prepaid, to the Trustee, the Paying Agent and each Holder whose Securities are
to be redeemed. At the Company's request, the Paying Agent shall give the
notice of redemption in the Company's name and at the Company's expense. Each
notice for redemption shall identify the Securities to be redeemed and shall
state:
 
    (1) the Redemption Date;
 
    (2) the Redemption Price, including the amount thereof which is accrued
  and unpaid interest to be paid upon such redemption;
 
    (3) the name, address and telephone number of the Paying Agent;
 
    (4) that Securities called for redemption must be surrendered to the
  Paying Agent at the address specified in such notice to collect the
  Redemption Price;
 
    (5) that, unless the Company defaults in its obligation to deposit Cash
  or U.S. Government Obligations which through the scheduled payment of
  principal and interest in respect thereof in accordance with their terms
  will provide, not later than one day before the due date of any payment,
  Cash in an amount to fund the Redemption Price with the Paying Agent in
  accordance with Section 3.6 hereof or such redemption payment is otherwise
  prohibited, interest on Securities called for redemption ceases to accrue
  on and after the Redemption Date and the only remaining right of the
  Holders of such Securities is to receive payment of the Redemption Price,
  upon surrender to the Paying Agent of the Securities called for redemption
  and to be redeemed;
 
    (6) if any Security is being redeemed in part, the portion of the
  principal amount, equal to $50 or any integral multiple thereof, of such
  Security to be redeemed and that, after the Redemption Date, and upon
  surrender of such Security, a new Security or Securities in aggregate
  principal amount equal to the unredeemed portion thereof will be issued;
 
                                      15
<PAGE>
 
    (7) if less than all the Securities are to be redeemed, the
  identification of the particular Securities (or portion thereof) to be
  redeemed, as well as the aggregate principal amount of such Securities to
  be redeemed and the aggregate principal amount of Securities to be
  outstanding after such partial redemption;
 
    (8) the conversion rate, the date on which the right to convert the
  principal of the Securities to be redeemed will terminate and the place or
  places where such Securities may be surrendered for conversion;
 
    (9) the CUSIP number of the Securities to be redeemed; and
 
    (10) that the notice is being sent pursuant to this Section 3.4 and
  pursuant to the optional redemption provisions of Paragraph 5 of the
  Securities.
 
  SECTION 3.5 Effect of Notice of Redemption.
 
  Once notice of redemption is mailed in accordance with Section 3.4,
Securities called for redemption become due and payable on the Redemption Date
and at the Redemption Price. Upon surrender to the Paying Agent, such
Securities called for redemption shall be paid at the Redemption Price;
provided that if the Redemption Date is after a Record Date and on or prior to
the Interest Payment Date to which such Record Date relates, the accrued
interest shall be payable to the Holder of the redeemed Securities registered
on the relevant Record Date; and provided, further, that if a Redemption Date
is a non-Business Day, payment shall be made on the next succeeding Business
Day and no interest shall accrue for the period from such Redemption Date to
such succeeding Business Day.
 
  SECTION 3.6 Deposit of Redemption Price.
 
  On or prior to the Redemption Date, the Company shall deposit with the
Paying Agent (other than the Company or an Affiliate of the Company) Cash or
U.S. Government Obligations sufficient to pay the Redemption Price of all
Securities to be redeemed on such Redemption Date (other than Securities or
portions thereof called for redemption on that date that (i) have been
delivered by the Company to the Registrar for cancellation or (ii) have been
converted prior to the date of such deposit). The Paying Agent shall promptly
return to the Company any Cash or U.S. Government Obligations so deposited
which is not required for that purpose upon the written request of the
Company.
 
  If any Security called for redemption is converted, any money deposited with
the Paying Agent shall (subject to the right of the Holder of such Security or
any Predecessor Security to receive interest as provided in the last paragraph
of Section 2.12) be paid to the Company upon Company Request.
 
  If the Company complies with the preceding paragraphs of this Section 3.6
and the other provisions of this Article III and payment of the Securities
called for redemption is not otherwise prohibited, interest on the Securities
to be redeemed will cease to accrue on the applicable Redemption Date, whether
or not such Securities are presented for payment. Notwithstanding anything
herein to the contrary, if any Security surrendered for redemption in the
manner provided in the Securities shall not be so paid upon surrender for
redemption because of the failure of the Company to comply with the preceding
paragraphs of this Section 3.6, interest shall continue to accrue and be paid
from the Redemption Date until such payment is made on the unpaid principal,
and, to the extent lawful, on any interest not paid on such unpaid principal,
in each case at the rate and in the manner provided in Section 5.1 and the
Security.
 
  SECTION 3.7 Securities Redeemed in Part.
 
  Upon surrender of a Security that is to be redeemed in part, the Company
shall execute and the Trustee shall authenticate and deliver to the Holder,
without service charge to the Holder, a new Security or Securities equal in
principal amount to the unredeemed portion of the Security surrendered.
 
                                      16
<PAGE>
 
                                  ARTICLE IV
 
                           CONVERSION OF SECURITIES
 
  SECTION 4.1 Right of Conversion.
 
  The Holder of any Security or Securities shall have the right any time prior
to close of business on the Maturity Date, at his option, to convert, subject
to the terms and provisions of this Article IV, the principal of any such
Security or Securities (or any portion of the principal thereof which is $50
or an integral multiple of $50) into fully paid and nonassessable shares of
Common Stock of the Company at the rate of       (/1/) shares of Common Stock
for each $50 principal amount of Securities or, in case an adjustment therein
has taken place pursuant to the provisions of Section 4.4, or the special
conversion right under Section 4.12 is applicable and the Holder elects to
exercise such special conversion right, then at the rate as so adjusted
(except that with respect to any Security or Securities, or any such portion,
which shall be called for redemption, such right shall terminate, except as
provided in the last paragraph of Section 4.2, at 5 p.m., New York City time,
on the Business Day prior to the Redemption Date for such Security or
Securities or portion and if not exercised prior to such time, such conversion
right will be lost, unless the Company defaults in making the payment due upon
redemption; provided, however, with respect to any redemption occurring on
         or one Business Day thereafter, the conversion right will terminate
at 5:00 p.m. New York City time on the Redemption Date). Such right shall be
exercised by the surrender of the Security or Securities, the principal of
which is so to be converted, to the Company at any time during usual business
hours at any office or agency to be maintained by it in accordance with the
provisions of Section 5.2, accompanied by written notice that the Holder
elects to convert such Security or Securities or any portion thereof and
specifying the name or names (with address) in which a certificate or
certificates evidencing Common Stock are to be issued and (if so required by
the Company or the Trustee) by an instrument or instruments of transfer in
form satisfactory to the Company and the Trustee, duly executed by the Holder
or his attorney, duly authorized in writing and transfer tax stamps or funds
therefor, if required pursuant to Section 4.10. For convenience, the
conversion of all or a portion, as the case may be, of the principal of any
Security into Common Stock of the Company is hereinafter sometimes referred to
as the conversion of such Security. All Securities surrendered for conversion
shall, if surrendered to the Company, the Trustee or any conversion agent, be
delivered to the Registrar for cancellation and cancelled by it and, subject
to the next succeeding sentence, no Securities shall be issued in lieu
thereof. In the case of any Security which is converted in part only, upon
such conversion the Company shall execute and the Trustee shall authenticate
and deliver to the Holder thereof, at the expense of the Company, a new
Security or Securities of authorized denominations in an aggregate principal
amount equal to the unconverted portion of the principal amount of such
Security.
 
  SECTION 4.2 Issuance of Common Stock; Time of Conversion.
 
  As promptly as practicable after the surrender, as herein provided, of any
Security or Securities for conversion, the Company shall deliver or cause to
be delivered at any office or agency to be maintained by it in accordance with
the provisions of Section 5.2 to or upon the written order of the Holder of
the Security or Securities so surrendered a certificate or certificates
evidencing the number of fully paid and nonassessable shares of Common Stock
of the Company into which such Security or Securities (or portion thereof) may
be converted in accordance with the provisions of this Article IV. Subject to
the following provisions of this paragraph and of Sections 4.4 and 4.12, such
conversion shall be deemed to have been made immediately prior to the close of
business on the date that such Security or Securities shall have been
surrendered in satisfactory form for conversion, so that the rights of the
Holder as a Holder shall cease with respect to such Security or Securities (or
the portion thereof being converted) at such time,
- --------
(1) Insert the conversion rate applicable to the Series A Convertible
    Exchangeable Preferred Stock at the Exchange Date.
 
                                      17
<PAGE>
 
and the Person or Persons entitled to receive the shares of Common Stock
deliverable upon conversion of such Security or Securities shall be treated
for all purposes as having become the record holder or holders of such shares
of Common Stock at such time, and such conversion shall be at the conversion
rate in effect at such time; provided, however, that no such surrender on any
date when the stock transfer books of the Company shall be closed shall be
effective to constitute the Person or Persons entitled to receive the shares
of Common Stock deliverable upon such conversion as the record holder or
holders of such shares of Common Stock on such date, but such surrender shall
be effective to constitute the Person or Persons entitled to receive such
shares of Common Stock as the record holder or holders thereof for all
purposes immediately prior to the close of business on the next succeeding day
on which such stock transfer books are open, and such conversion shall be
deemed to have been made at, and shall be made at the conversion rate in
effect at, such time on such next succeeding day.
 
  If the last day for the exercise of the conversion right shall not be a
Business Day, then such conversion right may be exercised on the next
succeeding Business Day.
 
  SECTION 4.3 No Adjustments in Respect of Interest or Dividends.
 
  Securities surrendered for conversion during the period from the close of
business on any Regular Record Date to the opening of business on the next
succeeding Interest Payment Date shall (except in the case of Securities or
portions thereof which have been called for redemption on a Redemption Date
during such period) be accompanied by payment in New York Clearing House funds
or other funds acceptable to the Company of an amount equal to the interest
payable on such Interest Payment Date on the principal amount of Securities
being surrendered for conversion. Except as provided in the preceding sentence
and subject to the last paragraph of Section 2.12, no payment or adjustment
shall be made upon any conversion on account of any interest accrued on the
Securities surrendered for conversion or on account of any dividends on the
shares of Common Stock issued upon conversion.
 
  SECTION 4.4 Adjustment of Conversion Rate.
 
  The conversion price at which the Securities are convertible into Common
Stock shall be subject to adjustment from time to time as follows:
 
    (i) In case the Company shall pay or make a dividend or other
  distribution on its Common Stock exclusively in Common Stock or shall pay
  or make a dividend or other distribution on any other class or series of
  capital stock of the Company which dividend or distribution includes Common
  Stock, the conversion price in effect at the opening of business on the day
  following the date fixed for the determination of shareholders entitled to
  receive such dividend or other distribution shall be reduced by multiplying
  such conversion price by: A/(A+B), where:
 
      A = the number of shares of Common Stock outstanding at the close of
    business on the date fixed for such determination; and
 
      B = the total number of shares of Common Stock constituting such
    dividend or other distribution,
 
  such reduction to become effective immediately after the opening of
  business on the day following the date fixed for such determination. For
  purposes of this subparagraph (i), the number of shares of Common Stock at
  any time outstanding shall not include shares held in the treasury of the
  Company. The Company shall not pay any dividend or make any distribution on
  shares of Common Stock held in the treasury of the Company.
 
    (ii)  In case the Company shall pay or make a dividend or other
  distribution on its Common Stock consisting exclusively of, or shall
  otherwise issue to all holders of its Common Stock, rights or warrants
  entitling the holders thereof to subscribe for or purchase shares of Common
  Stock at a price per share less than the Current Market Price Per Share of
  the Common Stock on the date fixed for
 
                                      18
<PAGE>
 
  the determination of shareholders entitled to receive such rights or
  warrants, the conversion price in effect at the opening of business on the
  day following the date fixed for such determination shall be reduced by
  multiplying such conversion price by: (A+B)/(A+C), where:
 
      A = the number of shares of Common Stock outstanding at the close of
    business on the date fixed for such determination,
 
      B = the number of shares of Common Stock which the aggregate of the
    offering price of the total number of shares of Common Stock so offered
    for subscription or purchase would purchase at such Current Market
    Price Per Share, and
 
      C = the number of additional shares of Common Stock so offered for
    subscription or purchase,
 
  such reduction to become effective immediately after the opening of
  business on the day following the date fixed for such determination.
 
  In case any rights or warrants referred to in this subparagraph (ii) in
  respect of which an adjustment shall have been made shall expire
  unexercised after the shares of Common Stock issued in respect thereof
  shall have been distributed or issued by the Company the conversion price
  shall be readjusted at the time of such expiration to the conversion price
  that would have been in effect if no adjustment had been made on account of
  the distribution or issuance of such expired rights or warrants, provided,
  that no such readjustment upon expiration of such rights or warrants shall
  affect the number of shares of Common Stock issued upon any conversion of
  Securities prior to such readjustment.
 
    (iii) In case outstanding shares of Common Stock shall be subdivided into
  a greater number of shares of Common Stock, the conversion price in effect
  at the opening of business on the day following the day upon which such
  subdivision becomes effective shall be proportionately reduced, and
  conversely, in case outstanding shares of Common Stock shall be combined
  into a smaller number of shares of Common Stock, the conversion price in
  effect at the opening of business on the day following the day upon which
  such combination becomes effective shall be proportionately increased, such
  reduction or increase, as the case may be, to become effective immediately
  after the opening of business on the day following the day upon which such
  subdivision or combination becomes effective.
 
    (iv) In case the Company shall, by dividend or otherwise, distribute to
  all holders of its Common Stock evidences of its indebtedness, shares of
  any class or series of capital stock, cash or assets (including securities,
  but excluding any rights or warrants referred to in subparagraph (ii) of
  this Section 4.4, any dividend or distribution paid exclusively in cash and
  any dividend or distribution referred to in subparagraph (i) of this
  Section 4.4), the conversion price shall be reduced so that the same shall
  equal the price determined by multiplying the conversion price in effect
  immediately prior to the effectiveness of the conversion price reduction
  contemplated by this subparagraph (iv) by: (A-B)/A, where:
 
      A = the Current Market Price Per Share of the Common Stock
    immediately prior to the close of business on the date fixed for
    determination of stockholders entitled to receive such distribution
    (the "Reference Date") and
 
      B = the fair market value (as determined in good faith by the Board
    of Directors, whose determination shall be conclusive and described in
    a resolution of the Board of Directors), on the Reference Date, of the
    portion of the evidence of indebtedness, shares of capital stock, cash
    and assets so distributed applicable to one share of Common Stock, such
    reduction to become effective immediately prior to the opening of
    business on the day following the Reference Date, provided, however,
    that for purposes of this subparagraph (iv), any dividend or
    distribution that includes shares of Common Stock or rights or warrants
    to subscribe for or purchase shares of Common Stock shall be deemed
    instead to be (A) a dividend or distribution of the evidences of
 
                                      19
<PAGE>
 
    indebtedness, cash, assets or shares of capital stock other than such
    shares of Common Stock or rights or warrants (making any further
    conversion price reduction required by this subparagraph (iv))
    immediately followed by (B) a dividend or distribution of such shares
    of Common Stock or such rights or warrants (making any further
    conversion price reduction required by subparagraph (i) or (ii) of this
    Section 4.4, except (1) the Reference Date of such dividend or
    distribution as defined in this subparagraph (iv) shall be substituted
    as "the date fixed for the determination of shareholders entitled to
    receive such dividend or other distribution", "the date fixed for the
    determination of shareholders entitled to receive such rights or
    warrants" and "the date fixed for such determination" within the
    meaning of subparagraph (i) and (ii) of this Section 4.4 and (2) any
    shares of Common Stock included in such dividend or distribution shall
    not be deemed "outstanding at the close of business on the date fixed
    for such determination" within the meaning of subparagraph (i) of this
    Section 4.4. If the Board of Directors determines the fair market value
    of any distribution for purposes of this subparagraph (iv) by reference
    to the actual or when issued trading market for any securities
    comprising such distribution, it must in doing so consider the prices
    in such market over the same period used in computing the Current
    Market Price Per Share of Common Stock.
 
    (v) In case the Company shall pay or make a dividend or other
  distribution on its Common Stock exclusively in cash (excluding (A) cash
  that is part of the distribution referred to in (iv) above and, (B) in the
  case of any quarterly cash dividend on the Common Stock, the portion
  thereof that does not exceed the per share amount of the next preceding
  quarterly cash dividend on the Common Stock (as adjusted to appropriately
  reflect any of the events referred to in subparagraph (i), (ii), (iii) and
  (iv) of this Section 4.4), or all of such quarterly cash dividend if the
  amount thereof per share of Common Stock multiplied by four does not exceed
  [ %] of the Current Market Price Per Share of the Common Stock on the
  Trading Day next preceding the date of declaration of such dividend), the
  conversion price shall be reduced so that the same shall equal the
  conversion price in effect immediately prior to the effectiveness of the
  conversion price reduction contemplated by this subparagraph (v) by: (A-
  B)/A, where:
 
      A = the Current Market Price Per Share of the Common Stock
    immediately prior to the close of business on the date fixed for the
    determination of stockholders entitled to receive such distribution,
    and
 
      B = the amount of cash so distributed and not excluded as provided
    above applicable to one share of Common Stock,
     
  such reduction to become effective immediately prior to the opening of
  business on the day following the date fixed for the payment of such
  distribution.     
 
    (vi) No adjustment in the conversion price shall be required unless such
  adjustment would require an increase or decrease of at least 1% in the
  conversion price; provided, however, that any adjustments which by reason
  of this subparagraph (vi) are not required to be made shall be carried
  forward and taken into account in any subsequent adjustment.
 
    (vii) Whenever the conversion price is adjusted as herein provided: (A)
  the Company shall compute the adjusted conversion price and shall prepare a
  certificate signed by the Chief Financial Officer of the Company setting
  forth the adjusted conversion price and showing in reasonable detail the
  facts upon which such adjustment is based, and such certificate shall
  forthwith be filed with the transfer agent for the Securities; and (B) a
  notice stating that the conversion price has been adjusted and setting
  forth the adjusted conversion price shall forthwith be required, and as
  soon as practicable after it is required, such notice shall be mailed by
  the Company to all record holders of Securities at their last addresses as
  they shall appear upon the stock transfer books of the Company.
 
    (viii) The Company from time to time may reduce the conversion price by
  any amount for any period of time if the period is at least twenty days,
  the reduction is irrevocable during the period and
 
                                      20
<PAGE>

 
  the Board of Directors of the Company shall have made a determination that
  such reduction would be in the best interest of the Company, which
  determination shall be conclusive. Whenever the conversion price is reduced
  pursuant to the preceding sentence, the Company shall mail to holders of
  record of the Securities a notice of the reduction at least fifteen days
  prior to the date the reduced conversion price takes effect, and such
  notice shall state the reduced conversion price and the period it will be
  in effect.
 
  SECTION 4.5 No Fractional Shares.
 
  No fractional shares or scrip representing fractional shares of Common Stock
shall be issued upon conversion of Securities. If more than one Security shall
be surrendered for conversion at one time by the same Holder, the number of
full shares issuable upon conversion thereof shall be computed on the basis of
the aggregate principal amount of the Securities (or specified portions
thereof) so surrendered. Instead of any fractional share of Common Stock which
would otherwise be issuable upon conversion of any Security or Securities (or
specified portions thereof), the Company shall pay a cash adjustment in
respect of such fractional share in an amount equal to the same fraction of
the market price per share of Common Stock (as determined by the Board of
Directors or in any manner prescribed by the Board of Directors, which, if
available, shall be the Closing Price for the shares of Common Stock) on the
day of conversion.
 
  SECTION 4.6 Reclassification, Consolidation, Merger or Sale of Assets.
 
  In the event that the Company shall be a party to any transaction (including
without limitation any recapitalization or reclassification of the Common
Stock) other than a change in par value, or from par value to no par value, or
from no par value to par value, or as a result of a subdivision or combination
of the Common Stock, any consolidation of the Company with, or merger of the
Company into, any other person, any merger of another person into the Company
(other than a merger which does not result in a reclassification, conversion,
exchange or cancellation of outstanding shares of Common Stock of the
Company), any sale or transfer of all or substantially all of the assets of
the Company or any share exchange) pursuant to which the Common Stock is
converted into the right to receive other securities, cash or other property,
then lawful provisions shall be made as part of the terms of such transaction
whereby the holder of each Security then outstanding shall have the right
thereafter to convert such Security only into (i) in the case of any such
transaction other than a Common Stock Fundamental Change and subject to funds
being legally available for such purpose under applicable law at the time of
such conversion, the kind and amount of securities, cash and other property
receivable upon such transaction by a holder of the number of shares of Common
Stock into which such Security might have been converted immediately prior to
such transaction, after giving effect, in the case of any Non-Stock
Fundamental Change, to any adjustment in the conversion price required by the
provisions of Section 4.12, and (ii) in the case of a Common Stock Fundamental
Change, common stock of the kind received by holders of Common Stock as a
result of such Common Stock Fundamental Change in an amount determined
pursuant to the provisions of Section 4.12. The Company or the Person formed
by such consolidation or resulting from such merger or which acquires such
assets or which acquires the Company's shares, as the case may be, shall make
provisions in its certificate or articles of incorporation or other
constituent document to establish such right. Such certificate or articles of
incorporation or other constituent document shall provide for adjustments
which, for events subsequent to the effective date of such certificate or
articles of incorporation or other constituent document, shall be as nearly
equivalent as may be practicable to the adjustments provided for in this
Article IV. The above provisions shall similarly apply to successive
transactions of the foregoing type.
 
  SECTION 4.7 Prior Notice of Certain Events. In case:
 
    (a) the Company shall (1) declare any dividend (or any other
  distribution) on Common Stock other than (A) a dividend payable in shares
  of Common Stock or (B) a dividend payable in cash out
 
                                      21
<PAGE>
 
  of its retained earnings other than any special or nonrecurring or other
  extraordinary dividend or (2) declare or authorize a redemption or
  repurchase of in excess of 10% of the then outstanding shares of Common
  Stock; or
 
    (b) the Company shall authorize the granting to all the holders of Common
  Stock of rights or warrants to subscribe for or purchase any shares of
  stock of any class or series or of any other rights or warrants (other than
  any rights which are not separable from the Common Stock except upon the
  occurrence of a contingency); or
 
    (c) of any reclassification of the Common Stock (other than a subdivision
  or combination of outstanding Common Stock, or a change in par value, or
  from par value to no par value, or from no par value to par value), or of
  any consolidation or merger to which the Company is a party and for which
  approval of any stockholders of the Company is required, or of the sale or
  transfer of all or substantially all of the assets of the Company or of any
  share exchange whereby the Common Stock is converted into other securities,
  cash or other property; or
 
    (d) of the voluntary or involuntary dissolution, liquidation or winding
  up of the Company;
 
then the Company shall cause to be filed with the Trustee and to be mailed to
each Holder of Securities at his last address appearing on the Security
Register, as promptly as possible but in any event at least 15 days prior to
the applicable record or effective date hereinafter specified, a notice
stating (1) the date on which a record, if any, is to be taken for the purpose
of such dividend, distribution, redemption, repurchase or granting of rights
or warrants or, if a record is not to be taken, the date as of which the
holders of Common Stock of record to be entitled to such dividend,
distribution, redemption, repurchase, rights or warrants are to be determined
or (2) the date on which such reclassification, consolidation, merger, sale,
transfer, share exchange, dissolution, liquidation or winding up is expected
to become effective, and the date as of which it is expected that holders of
Common Stock of record shall be entitled to exchange their shares of Common
Stock for securities or other property deliverable upon such reclassification,
consolidation, merger, sale, transfer, share exchange, dissolution,
liquidation or winding up (but no failure to mail such notice or any defect
therein or in the mailing thereof shall affect the validity of the corporate
action required to specified in such notice).
 
  SECTION 4.8 Shares to be Reserved; Accounting Treatment of Consideration.
 
  The Company covenants that it will at all times reserve and keep available
out of its authorized and unissued Common Stock, free from preemptive rights
solely for the purpose of issue upon conversion of Securities as herein
provided, such number of shares of Common Stock as shall then be issuable upon
the conversion of all outstanding Securities. The Company covenants that all
shares of Common Stock which shall be so issuable shall, when issued, be duly
and validly issued and fully paid and nonassessable.
 
  The Company covenants that, upon conversion of Securities as herein
provided, there will be credited to the Common Stock capital account from the
consideration for which the shares of Common Stock issuable upon such
conversion are issued an amount per share of Common Stock so issued as
determined by the Board of Directors, which amount shall not be less than the
amount required by law and by the Company's certificate of incorporation as in
effect on the date of such conversion. For the purposes of this covenant the
principal amount of the Securities converted, less any cash paid in respect of
fractional share interests upon such conversion, shall be deemed to be the
amount of consideration for which the shares of Common Stock issuable upon
such conversion are issued.
 
  SECTION 4.9 Registration and Listing of Shares.
 
  The Company covenants that if any shares of Common Stock required to be
reserved for purposes of conversion of Securities hereunder require
registration with or approval of any governmental authority under any federal
or state law before such shares may be issued upon conversion, the Company
will in good faith and as expeditiously as possible endeavor to cause such
shares to be duly registered or
 
                                      22
<PAGE>
 
approved, as the case may be. The Company further covenants that so long as
the Common Stock is listed on the New York Stock Exchange or any other
national securities exchange or traded through the Nasdaq National Market, the
Company will, if permitted by the rules of such exchange or market, list and
keep listed on such exchange or make and keep eligible for trading on such
market, as the case may be, upon official notice of issuance, all shares of
Common Stock issuable upon conversion of Securities; provided, however, that
such shares of Common Stock may be delisted from such exchange or may cease to
be eligible for trading through such market (as the case may be) if, prior to
or concurrent with such delisting or cessation of eligibility for trading, the
Company causes such shares of Common Stock to be listed on or eligible for
trading through any other national securities exchange or on the Nasdaq
National Market.
 
  SECTION 4.10 Taxes and Charges.
 
  The issuance of certificates evidencing shares of Common Stock upon the
conversion of Securities shall be made without charge to the converting Holder
of Securities for such certificates or for any tax in respect of the issuance
of such certificates or the securities evidenced thereby, and such
certificates shall be issued in the respective names of, or in such names as
may be directed by, the Holders of the Securities converted; provided,
however, that the Company shall not be required to pay any tax which may be
payable in respect of any transfer involved in the issuance and delivery of
any such certificate in a name other than that of the Holder of the Security
converted, and the Company shall not be required to issue or deliver such
certificates unless or until the Person or Persons requesting the issuance
thereof shall have paid to the Company the amount of such tax or shall have
established to the satisfaction of the Company that such tax has been paid.
 
  SECTION 4.11 Trustee and Conversion Agents Not Liable.
 
  Neither the Trustee nor any conversion agent shall at any time be under any
duty or responsibility to any Holder of Securities to determine whether any
facts exist which may require any adjustment of the conversion rate, or with
respect to the nature or extent of any such adjustment when made, or with
respect to the method employed, or herein or in any supplemental indenture
provided to be employed, in making the same. Neither the Trustee nor any
conversion agent shall be accountable with respect to the validity or value
(or the kind or amount) of any shares of Common Stock or of any securities or
cash or other property which may at any time be issued or delivered upon the
conversion of any Security, or makes any representation with respect thereto.
Neither the Trustee nor any conversion agent shall be responsible for any
failure of the Company to make any cash payment or to issue, transfer or
deliver any shares of Common Stock or stock certificates or other securities
or property upon the surrender of any Security for the purpose of conversion
or, subject to Section 8.1, to comply with any of the covenants of the Company
contained in this Article IV.
 
  SECTION 4.12 Special Conversion Rights.
 
  Notwithstanding any other provision in this Article IV to the contrary, if
any Fundamental Change occurs, then the conversion price in effect will be
adjusted immediately after such Fundamental Change as described below. In
addition, in the event of a Common Stock Fundamental Change, each Security
shall be convertible solely into common stock of the kind received by holders
of Common Stock as the result of such Common Stock Fundamental Change:
 
  For purposes of calculating any adjustment to be made pursuant to this
Section 4.12 in the event of a Fundamental Change, immediately after such
Fundamental Change.
 
    (i) In the case of a Non-Stock Fundamental Change, the conversion price
  of the Securities shall thereupon become the lower of (A) the conversion
  price in effect immediately prior to such Non-Stock Fundamental Change, but
  after giving effect to any other prior adjustments effected pursuant to
  this Article IV, and (B) the result of A x $50/B, where:
 
      A = the greater of the Applicable Price or the then applicable
    Reference Market Price, and
 
      B = the then-current Optional Redemption Price per Security; and
 
                                      23
<PAGE>
 
    (ii) In the case of a Common Stock Fundamental Change, the conversion
  price of the Securities in effect immediately prior to such Common Stock
  Fundamental Change, but after giving effect to any other prior adjustments
  effected pursuant to this Article IV, shall thereupon be adjusted by
  multiplying such conversion price by a fraction of which the numerator
  shall be the Purchaser Stock Price and the denominator shall be the
  Applicable Price; provided, however, that in the event of a Common Stock
  Fundamental Change in which (A) 100% by value of the consideration received
  by a holder of Common Stock is common stock of the successor, acquiror or
  other third party (and cash, if any, is paid with respect to any fractional
  interests in such common stock resulting from such Common Stock Fundamental
  Change) and (B) all of the Common Stock shall have been exchanged for,
  converted into or acquired for common stock (and cash with respect to
  fractional interests) of the successor, acquiror or other third party, the
  conversion price of the Securities in effect immediately prior to such
  Common Stock Fundamental Change shall thereupon be adjusted by dividing
  such conversion price by the number of shares of common stock of the
  successor, acquiror, or other third party received by a holder of one share
  of Common Stock as a result of such Common Stock Fundamental Change.
 
  SECTION 4.13 Limitations on Adjustment of Conversion Price.
 
  Notwithstanding any other provisions in this Article IV, the issuance of any
shares of Common Stock pursuant to any plan providing for the reinvestment of
dividends or interest payable on securities of the Company and the investment
of additional optional amounts in shares of Common Stock under any such plan,
and the issuance of any shares of Common Stock or options or rights to
purchase such shares pursuant to any employee benefit plan or program of the
Company or pursuant to any option, warrant, right or exercisable, exchangeable
or convertible security outstanding as of             , 1997 shall not be
deemed to constitute an issuance of Common Stock or exercisable, exchangeable
or convertible securities by the Company to which any of the adjustment
provisions described above applies. There shall also be no adjustment of the
conversion price in case of the issuance of any stock (or securities
convertible into or exchangeable for stock) of the Company except as
specifically described in this Article IV. If any action would require
adjustment of the conversion price pursuant to more than one of the provisions
described above, only one adjustment shall be made and such adjustment shall
be the amount of adjustment which has the highest absolute value to holders of
Securities.
 
                                   ARTICLE V
 
                                   COVENANTS
 
  SECTION 5.1 Payment of Securities.
 
  The Company shall pay the principal of and interest and premium, if
applicable on the Securities on the dates and in the manner provided herein
and in the Securities. An installment of principal of or interest and premium,
if applicable on the Securities shall be considered paid on the date it is due
if the Trustee or Paying Agent (other than the Company, a Subsidiary of the
Company or an Affiliate of the Company) holds for the benefit of the Holders,
on or before 1:00 p.m. New York City time on that date, Cash deposited and
designated for and sufficient to pay the installment.
 
  The Company shall pay interest on overdue principal and on overdue
installments of interest at the rate specified in the Securities compounded
quarterly, to the extent lawful.
 
  SECTION 5.2 Maintenance of Office or Agency.
 
  The Company shall maintain in the Borough of Manhattan, The City of New
York, an office or agency where Securities may be presented or surrendered for
payment, where Securities may be surrendered for registration of transfer or
exchange, where Securities may be surrendered for conversion and where notices
and demands to or upon the Company in respect of the Securities and this
Indenture may be served. The Company shall give prompt written notice to the
Trustee and the Paying Agent of the location,
 
                                      24
<PAGE>
 
and any change in the location, of such office or agency. If at any time the
Company shall fail to maintain any such required office or agency or shall
fail to furnish the Trustee and the Paying Agent with the address thereof,
such presentations, surrenders, notices and demands may be made or served at
the address of the Trustee set forth in Section 12.2.
 
  The Company may also from time to time designate one or more other offices
or agencies where the Securities may be presented or surrendered for any or
all such purposes and may from time to time rescind such designations;
provided, however, that no such designation or rescission shall in any manner
relieve the Company of its obligation to maintain an office or agency in the
Borough of Manhattan, The City of New York, for such purposes. The Company
shall give prompt written notice to the Trustee and the Paying Agent of any
such designation or rescission and of any change in the location of any such
other office or agency. The Company hereby initially designates the corporate
trust office of the Paying Agent as such office.
 
  SECTION 5.3 Corporate Existence.
 
  Subject to Article VI, the Company shall do or cause to be done all things
necessary to preserve and keep in full force and effect its corporate
existence in accordance with its organizational documents (as the same may be
amended from time to time) and the rights (charter and statutory) of the
Company.
 
  SECTION 5.4 Compliance Certificate; Notice of Default.
 
  (a) The Company shall deliver to the Trustee annually, within 120 days after
the end of its fiscal year commencing with the fiscal year ending December 31,
1997 an Officers' Certificate complying with (S) 314(a)(4) of the TIA and
stating that a review of its activities and the activities of its Subsidiaries
during the preceding fiscal year has been made under the supervision of the
signing Officers with a view to determining whether the Company has kept,
observed, performed and fulfilled its obligations under this Indenture and
further stating, as to each such Officer signing such certificate, whether or
not the signer knows of any failure by the Company to comply with any
conditions or covenants in this Indenture and, if such signer does know of
such a failure to comply, the certificate shall describe such failure with
particularity. The Officers' Certificate shall also notify the Trustee should
the relevant fiscal year end on any date other than the current fiscal year
end date.
 
  (b) The Company shall, so long as any of the Securities are outstanding,
deliver to the Trustee, promptly upon becoming aware of any Default or any
Event of Default, an Officers' Certificate specifying such Default or Event of
Default and what action the Company is taking or proposes to take with respect
thereto. The Trustee shall not be deemed to have knowledge of any Default or
any Event of Default unless one of its Trust Officers receives written notice
thereof from the Company or any of the Holders.
 
  SECTION 5.5 Reports.
 
  Whether or not the Company is subject to the reporting requirements of
Section 13 or 15(d) of the Exchange Act, the Company shall deliver to the
Trustee and to each Holder, within 15 days after it files or would have been
required to file such with the SEC, annual and quarterly financial statements
substantially equivalent to financial statements that would have been included
in reports filed with the SEC, if the Company were subject to the requirements
of Section 13 or 15(d) of the Exchange Act, including, with respect to annual
information only, a report thereon by the Company's certified independent
public accountants as such would be required in such reports to the SEC, and,
in each case, together with a management's discussion and analysis of
financial condition and results of operations which would be so required.
Whether or not required by the rules and regulations of the SEC, the Company
will file a copy of all such information and reports with the SEC for public
availability. Notwithstanding the foregoing, the Company shall not be required
to file any such reports if the SEC does not permit such filings. Delivery of
such reports, information and documents to the Trustee is for informational
purposes only and the Trustee's
 
                                      25
<PAGE>
 
receipt of such shall not constitute constructive notice of any information
contained therein or determinable from information contained therein,
including the Company's compliance with any of its covenants hereunder (as to
which the Trustee is entitled to rely exclusively on Officers' Certificates).
 
  SECTION 5.6 Limitation on Status as Investment Company.
 
  Neither the Company nor any Subsidiary of the Company shall become an
"investment company" (as that term is defined in the Investment Company Act of
1940, as amended), or otherwise become subject to regulation under the
Investment Company Act.
 
  SECTION 5.7 Waiver of Stay, Extension or Usury Laws.
 
  The Company covenants (to the extent that it may lawfully do so) that it
will not at any time insist upon, plead, or in any manner whatsoever claim or
take the benefit or advantage of, any stay or extension law or any usury law
or other law which would prohibit or forgive the Company from paying all or
any portion of the principal of, premium of, or interest on the Securities as
contemplated herein, wherever enacted, now or at any time hereafter in force,
or which may affect the covenants or the performance of this Indenture; and
(to the extent that it may lawfully do so) the Company hereby expressly waives
all benefit or advantage of any such law, and covenants that it will not
hinder, delay or impede the execution of any power herein granted to the
Trustee or any Paying Agent, but will suffer and permit the execution of every
such power as though no such law had been enacted.
 
                                  ARTICLE VI
 
                             SUCCESSOR CORPORATION
 
  SECTION 6.1 Limitation on Merger, Sale or Consolidation.
 
  The Company shall not consolidate with or merge into any other Person or
convey, transfer or lease its properties and assets substantially as an
entirety to any Person, and the Company shall not permit any Person to
consolidate with or merge into the Company or convey, transfer or lease its
properties and assets substantially as an entirety to the Company unless:
 
    (a) in case the Company shall consolidate with or merge into another
  Person or convey, transfer or lease its properties and assets substantially
  as an entirety to any Person, the Person formed by such consolidation or
  into which the Company is merged or the Person which acquires by conveyance
  or transfer, or which leases, the properties and assets of the Company
  substantially as an entirety shall be a corporation, partnership or trust,
  shall be organized and validly existing under the laws of the United States
  of America, any state thereof or the District of Columbia and shall
  expressly assume, by an indenture supplemental hereto, executed and
  delivered to the Trustee, in form satisfactory to the Trustee, the due and
  punctual payment of the principal of (and premium, if any) and interest on
  all of the Securities and the performance of every covenant of this
  Indenture on the part of the Company to be performed or observed by it and
  shall have provided for conversion rights in accordance with Section 4.6
  and, if applicable, Section 4.12.
 
    (b) immediately after giving effect to such transaction, no Event of
  Default, and no event which, after notice or lapse of time or both, would
  become an Event of Default, shall have happened and be continuing; and
 
    (c) the Company has delivered to the Trustee an Officer's Certificate and
  an Opinion of Counsel, each stating that such consolidation, merger,
  conveyance, transfer or lease and, if a supplemental indenture is required
  in connection with such transaction, such supplemental indenture complies
  with this Article and that all conditions precedent herein provided for
  relating to such transaction have been complied with.
 
                                      26
<PAGE>
 
  SECTION 6.2 Successor Corporation Substituted.
 
  Upon any consolidation or merger or any sale, lease, conveyance or transfer
of all or substantially all of the assets of the Company in accordance with
Section 6.1 hereof, the successor Person formed by such consolidation or into
which the Company is merged or to which such sale, lease, conveyance or
transfer is made, shall succeed to, and be substituted for, and may exercise
every right and power of, the Company under this Indenture with the same
effect as if such successor Person had been named herein as the Company, and
when a successor Person duly assumes all of the obligations of the Company
pursuant hereto and pursuant to the Securities, the Company shall be released
from such obligations and may be liquidated and dissolved.
 
                                  ARTICLE VII
 
                        EVENTS OF DEFAULT AND REMEDIES
 
  SECTION 7.1 Events of Default.
 
  "Event of Default," wherever used herein, means any one of the following
events (whatever the reason for such Event of Default and whether it shall be
caused voluntarily or involuntarily or effected, without limitation, by
operation of law or pursuant to any judgment, decree or order of any court or
any order, rule or regulation of any administrative or governmental body):
 
    (1) failure to pay any installment of interest upon the Securities as and
  when the same becomes due and payable, and the continuance of such default
  for a period of 30 days;
 
    (2) failure to pay all or any part of the principal of or premium, if
  any, on the Securities when and as the same becomes due and payable at
  maturity, redemption, by acceleration, or otherwise;
 
    (3) failure by the Company to observe or perform any covenant or
  agreement contained in the Securities or this Indenture (other than a
  default in the performance of any covenant or agreement which is
  specifically dealt with elsewhere in this Section 7.1), and continuance of
  such failure for a period of 60 days after there has been given, by
  registered or certified mail, to the Company by the Trustee, or to the
  Company and the Trustee by Holders of at least 25% in aggregate principal
  amount of the outstanding Securities, a written notice specifying such
  default or breach, requiring it to be remedied and stating that such notice
  is a "Notice of Default" hereunder;
 
    (4) a decree, judgment, or order by a court of competent jurisdiction
  shall have been entered adjudicating the Company or any of its Material
  Subsidiaries as bankrupt or insolvent, or approving as properly filed a
  petition seeking reorganization of the Company or any of its Material
  Subsidiaries under any bankruptcy or similar law, and such decree or order
  shall have continued undischarged and unstayed for a period of 60
  consecutive days; or a decree or order of a court of competent
  jurisdiction, judgment appointing a receiver, liquidator, trustee, or
  assignee in bankruptcy or insolvency for the Company, any of its Material
  Subsidiaries, or any substantial part of the property of any such Person,
  or for the winding up or liquidation of the affairs of any such Person,
  shall have been entered, and such decree, judgment, or order shall have
  remained in force undischarged and unstayed for a period of 60 days;
 
    (5) the Company or any of its Material Subsidiaries shall institute
  proceedings to be adjudicated a voluntary bankrupt, or shall consent to the
  filing of a bankruptcy proceeding against it, or shall file a petition or
  answer or consent seeking reorganization under any bankruptcy or similar
  law or similar statute, or shall consent to the filing of any such
  petition, or shall consent to the appointment of a Custodian, receiver,
  liquidator, trustee, or assignee in bankruptcy or insolvency of it or any
  substantial part of its assets or property, or shall make a general
  assignment for the benefit of creditors, or shall admit in writing its
  inability to pay its debts generally as they become due, or shall, within
  the meaning of any Bankruptcy Law, become insolvent, fail generally to pay
  its debts as they become due, or take any corporate action in furtherance
  of or to facilitate, conditionally or otherwise, any of the foregoing;
 
                                      27
<PAGE>
 
  SECTION 7.2 Acceleration of Maturity Date; Rescission and Annulment.
 
  If an Event of Default (other than an Event of Default specified in Section
7.1(4) or (5) relating to the Company) occurs and is continuing, then, in
every such case, unless the principal of all of the Securities shall have
already become due and payable, either the Trustee or the Holders of not less
than 25% in aggregate principal amount of the Securities then outstanding, by
a notice in writing to the Company (and to the Trustee if given by Holders)
(an "Acceleration Notice"), may declare all of the principal of the
Securities, determined as set forth below, and accrued interest thereon, to be
due and payable immediately (plus, in the case of an Event of Default which is
the result of an action of the Company intended to avoid paying a redemption
premium on the Securities contained herein, an amount of premium that would
have been applicable under the Securities). If an Event of Default specified
in Section 7.1(4) or (5) relating to the Company occurs, all principal and
accrued interest thereon will be immediately due and payable on all
outstanding Securities without any declaration or other act on the part of
Trustee or the Holders.
 
  At any time after such a declaration of acceleration being made and before a
judgment or decree for payment of the money due has been obtained by the
Trustee as hereinafter provided in this Article VII, the Holders of not less
than a majority in aggregate principal amount of then outstanding Securities,
by written notice to the Company and the Trustee, may rescind, on behalf of
all Holders, any such declaration of acceleration if:
 
    (1) the Company has paid or deposited with the Trustee Cash sufficient to
  pay
 
      (A) all overdue interest on all Securities,
 
      (B) the principal of (and premium, if any, applicable to) any
    Securities which would become due other than by reason of such
    declaration of acceleration, and interest thereon at the rate borne by
    the Securities,
 
      (C) to the extent that payment of such interest is lawful, interest
    upon overdue interest at the rate borne by the Securities,
 
      (D) all sums paid or advanced by the Trustee hereunder and the
    compensation, expenses, disbursements and advances of the Trustee and
    its agents and counsel, and any other amounts due the Trustee under
    Section 8.7, and
 
    (2) all Events of Default, other than the non-payment of the principal
  of, premium, if any, and interest on Securities which have become due
  solely by such declaration of acceleration, have been cured or waived as
  provided in Section 7.12.
 
  SECTION 7.3 Collection of Indebtedness and Suits for Enforcement by Trustee.
 
  The Company covenants that if an Event of Default in payment of principal,
premium, or interest specified in clause (1) or (2) of Section 7.1 occurs and
is continuing, the Company shall, upon demand of the Trustee, pay to it, for
the benefit of the Holders of such Securities, the whole amount then due and
payable on such Securities for principal, premium (if any) and interest, and,
to the extent that payment of such interest shall be legally enforceable,
interest on any overdue principal (and premium, if any) and on any overdue
interest, at the rate borne by the Securities, and, in addition thereto, such
further amount as shall be sufficient to cover the costs and expenses of
collection, including compensation to, and expenses, disbursements and
advances of the Trustee and its agents and counsel and all other amounts due
the Trustee under Section 8.7.
 
  If the Company fails to pay such amounts forthwith upon such demand, the
Trustee, in its own name and as trustee of an express trust in favor of the
Holders, may institute a judicial proceeding for the collection of the sums so
due and unpaid, may prosecute such proceeding to judgment or final decree and
may enforce the same against the Company or any other obligor upon the
Securities and collect the moneys adjudged or decreed to be payable in the
manner provided by law out of the property of the Company or any other obligor
upon the Securities, wherever situated.
 
 
                                      28
<PAGE>
 
  If an Event of Default occurs and is continuing, the Trustee may proceed to
protect and enforce its rights and the rights of the Holders by such
appropriate judicial proceedings as the Trustee shall deem most effective to
protect and enforce any such rights, whether for the specific enforcement of
any covenant or agreement in this Indenture or in aid of the exercise of any
power granted herein, or to enforce any other proper remedy.
 
  SECTION 7.4 Trustee May File Proofs of Claim.
 
  In case of the pendency of any receivership, insolvency, liquidation,
bankruptcy, reorganization, arrangement, adjustment, composition or other
judicial proceeding relative to the Company or any other obligor upon the
Securities or the property of the Company or of such other obligor or their
creditors, the Trustee (irrespective of whether the principal of the
Securities shall then be due and payable as therein expressed or by
declaration or otherwise and irrespective of whether the Trustee shall have
made any demand on the Company for the payment of overdue principal and
premium, if any, or interest) shall be entitled and empowered, by intervention
in such proceeding or otherwise to take any and all actions under the TIA,
including
 
    (1) to file and prove a claim for the whole amount of principal (and
  premium, if any) and interest owing and unpaid in respect of the Securities
  and to file such other papers or documents as may be necessary or advisable
  in order to have the claims of the Trustee (including any claim for the
  reasonable compensation, expenses, disbursements and advances of the
  Trustee and its agent and counsel and all other amounts due the Trustee
  under Section 8.7) and of the Holders allowed in such judicial proceeding,
  and
 
    (2) to collect and receive any moneys or other property payable or
  deliverable on any such claims and to distribute the same;
 
and any custodian, receiver, assignee, trustee, liquidator, sequestrator or
other similar official in any such judicial proceeding is hereby authorized by
each Holder to make such payments to the Trustee and, in the event that the
Trustee shall consent to the making of such payments directly to the Holders,
to pay to the Trustee any amount due it for the reasonable compensation,
expenses, disbursements and advances of the Trustee and its agents and
counsel, and any other amounts due the Trustee under Section 8.7.
 
  Nothing herein contained shall be deemed to authorize the Trustee to
authorize or consent to or accept or adopt on behalf of any Holder any plan of
reorganization, arrangement, adjustment, or composition affecting the
Securities or the rights of any Holder thereof or to authorize the Trustee to
vote in respect of the claim of any Holder in any such proceeding.
 
  SECTION 7.5 Trustee May Enforce Claims Without Possession of Securities.
 
  All rights of action and claims under this Indenture or the Securities may
be prosecuted and enforced by the Trustee without the possession of any of the
Securities or the production thereof in any proceeding relating thereto, and
any such proceeding instituted by the Trustee shall be brought in its own name
as trustee of an express trust in favor of the Holders, and any recovery of
judgment shall, after provision for the payment of compensation to, and
expenses, disbursements and advances of the Trustee, its agents and counsel
and all other amounts due the Trustee under Section 8.7, be for the ratable
benefit of the Holders of the Securities in respect of which such judgment has
been recovered.
 
  SECTION 7.6 Priorities.
 
  Any money collected by the Trustee pursuant to this Article VII shall be
applied in the following order, at the date or dates fixed by the Trustee and,
in case of the distribution of such money on account of principal, premium (if
any) or interest, upon presentation of the Securities and the notation thereon
of the payment if only partially paid and upon surrender thereof if fully
paid:
 
    FIRST: To the Trustee in payment of all amounts due pursuant to Section
  8.7;
 
                                      29
<PAGE>
 
    SECOND: To the Holders in payment of the amounts then due and unpaid for
  principal of, premium (if any) and interest on, the Securities in respect
  of which or for the benefit of which such money has been collected,
  ratably, without preference or priority of any kind, according to the
  amounts due and payable on such Securities for principal, premium (if any)
  and interest, respectively; and
 
    THIRD: To the Company or such other Person as may be lawfully entitled
  thereto, the remainder, if any.
 
  The Trustee may, but shall not be obligated to, fix a record date and
payment date for any payment to the Holders under this Section 7.6.
 
  SECTION 7.7 Limitation on Suits.
 
  No Holder of any Security shall have any right to order or direct the
Trustee to institute any proceeding, judicial or otherwise, with respect to
this Indenture, or for the appointment of a receiver or trustee, or for any
other remedy hereunder, unless
 
    (A) such Holder has previously given written notice to the Trustee of a
  continuing Event of Default;
 
    (B) the Holders of not less than 25% in aggregate principal amount of
  then outstanding Securities shall have made written request to the Trustee
  to institute proceedings in respect of such Event of Default in its own
  name as Trustee hereunder;
 
    (C) such Holder or Holders have offered to the Trustee reasonable
  security or indemnity against the costs, expenses and liabilities to be
  incurred or reasonably probable to be incurred in compliance with such
  request;
 
    (D) the Trustee for 60 days after its receipt of such notice, request and
  offer of indemnity has failed to institute any such proceeding; and
 
    (E) no direction inconsistent with such written request has been given to
  the Trustee during such 60-day period by the Holders of a majority in
  aggregate principal amount of the outstanding Securities;
 
it being understood and intended that no one or more Holders shall have any
right in any manner whatsoever by virtue of, or by availing of, any provision
of this Indenture to affect, disturb or prejudice the rights of any other
Holders, or to obtain or to seek to obtain priority or preference over any
other Holders or to enforce any right under this Indenture, except in the
manner herein provided and for the equal and ratable benefit of all the
Holders.
 
  SECTION 7.8 Unconditional Right of Holders to Receive Principal, Premium and
Interest.
 
  Subject to the provisions of Article II, notwithstanding any other provision
of this Indenture, the Holder of any Security shall have the right, which is
absolute and unconditional, to receive payment of the principal of, and
premium (if any) and (subject to Section 2.12) interest on, such Security on
the Maturity Dates of such payments as expressed in such Security (in the case
of redemption, the Redemption Price on the applicable Redemption Date) and to
convert such Security in accordance with Article IV and to institute suit for
the enforcement of any such payment and right to convert, and such rights
shall not be impaired without the consent of such Holder.
 
  SECTION 7.9 Rights and Remedies Cumulative.
 
  Except as otherwise provided with respect to the replacement or payment of
mutilated, destroyed, lost or stolen Securities in Section 2.7, no right or
remedy herein conferred upon or reserved to the Trustee or to the Holders is
intended to be exclusive of any other right or remedy, and every right and
remedy shall, to the extent permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at
law or in equity or otherwise. The assertion or employment of any right or
remedy hereunder, or otherwise, shall not prevent the concurrent assertion or
employment of any other appropriate right or remedy.
 
                                      30
<PAGE>
 
  SECTION 7.10 Delay or Omission Not Waiver.
 
  No delay or omission by the Trustee or by any Holder of any Security to
exercise any right or remedy arising upon any Event of Default shall impair
the exercise of any such right or remedy or constitute a waiver of any such
Event of Default. Every right and remedy given by this Article VII or by law
to the Trustee or to the Holders may be exercised from time to time, and as
often as may be deemed expedient, by the Trustee or by the Holders, as the
case may be.
 
  SECTION 7.11 Control by Holders.
 
  The Holder or Holders of a majority in aggregate principal amount of then
outstanding Securities shall have the right to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred upon the Trustee, provided, that
 
    (1) such direction shall not be in conflict with any rule of law or with
  this Indenture or involve the Trustee in personal liability,
 
    (2) the Trustee shall not determine that the action so directed would be
  unjustly prejudicial to the Holders not taking part in such direction, and
 
    (3) the Trustee may take any other action deemed proper by the Trustee
  which is not inconsistent with such direction.
 
  SECTION 7.12 Waiver of Past Default.
 
  Subject to Section 7.8, the Holder or Holders of not less than a majority in
aggregate principal amount of the outstanding Securities may, on behalf of all
Holders, waive any past default hereunder and its consequences, except a
default
 
    (A) in the payment of the principal of, premium, if any, or interest on,
  any Security as specified in clauses (1) and (2) of Section 7.1 and not yet
  cured, or
 
    (B) in respect of a covenant or provision hereof which, under Article X,
  cannot be modified or amended without the consent of the Holder of each
  outstanding Security affected, unless all such affected Holders agree, in
  writing, to waive such Event of Default or other event.
 
  Upon any such waiver, such default shall cease to exist, and any Event of
Default arising therefrom shall be deemed to have been cured, for every
purpose of this Indenture; but no such waiver shall extend to any subsequent
or other default or impair the exercise of any right arising therefrom.
 
  SECTION 7.13 Undertaking for Costs.
 
  The parties to this Indenture agree, and each Holder of any Security by his
acceptance thereof shall be deemed to have agreed, that in any suit for the
enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken, suffered or omitted to be taken by
it as Trustee, any court may in its discretion require the filing by any party
litigant in such suit of an undertaking to pay the costs of such suit, and
that such court may in its discretion assess reasonable costs, including
reasonable attorneys' fees, against any party litigant in such suit, having
due regard to the merits and good faith of the claims or defenses made by such
party litigant; but the provisions of this Section 7.13 shall not apply to any
suit instituted by the Company, to any suit instituted by the Trustee, to any
suit instituted by any Holder, or group of Holders, holding in the aggregate
more than 10% in aggregate principal amount of the outstanding Securities, or
to any suit instituted by any Holder for enforcement of the payment of
principal of, or premium (if any) or interest on, any Security on or after the
respective Maturity Date expressed in such Security (including, in the case of
redemption, on or after the Redemption Date) or for the enforcement of the
right to convert any security in accordance with Article IV.
 
                                      31
<PAGE>
 
  SECTION 7.14 Restoration of Rights and Remedies.
 
  If the Trustee or any Holder has instituted any proceeding to enforce any
right or remedy under this Indenture and such proceeding has been discontinued
or abandoned for any reason, or has been determined adversely to the Trustee
or to such Holder, then and in every case, subject to any determination in
such proceeding, the Company, the Trustee and the Holders shall be restored
severally and respectively to their former positions hereunder and thereafter
all rights and remedies of the Trustee and the Holders shall continue as
though no such proceeding had been instituted.
 
                                 ARTICLE VIII
 
                                    TRUSTEE
 
  The Trustee hereby accepts the trust imposed upon it by this Indenture and
covenants and agrees to perform the same, as herein expressed, subject to the
terms hereof.
 
  SECTION 8.1 Duties of Trustee.
 
  (a) If an Event of Default has occurred and is continuing, the Trustee shall
exercise such of the rights and powers vested in it by this Indenture and use
the same degree of care and skill in their exercise as a prudent man would
exercise or use under the circumstances in the conduct of his own affairs.
 
  (b) Except during the continuance of an Event of Default:
 
    (1) The Trustee need perform only those duties as are specifically set
  forth in this Indenture and no others, and no covenants or obligations
  shall be implied in or read into this Indenture which are adverse to the
  Trustee, and
 
    (2) In the absence of bad faith on its part, the Trustee may conclusively
  rely, as to the truth of the statements and the correctness of the opinions
  expressed therein, upon certificates or opinions furnished to the Trustee
  and conforming to the requirements of this Indenture. However, in the case
  of any such certificates or opinions which by any provision hereof are
  specifically required to be furnished to the Trustee, the Trustee shall
  examine the certificates and opinions to determine whether or not they
  conform to the requirements of this Indenture (but need not confirm or
  investigate the accuracy of mathematical calculations or other facts stated
  therein).
 
  (c) The Trustee may not be relieved from liability for its own negligent
action, its own negligent failure to act, or its own willful misconduct,
except that:
 
    (1) This paragraph does not limit the effect of paragraph (b) of this
  Section 8.1,
 
    (2) The Trustee shall not be liable for any error of judgment made in
  good faith by a Trust Officer, unless it is proved that the Trustee was
  negligent in ascertaining the pertinent facts, and
 
    (3) The Trustee shall not be liable with respect to any action it takes
  or omits to take in good faith in accordance with a direction received by
  it pursuant to Section 7.11.
 
  (d) No provision of this Indenture shall require the Trustee to expend or
risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder or to take or omit to take any
action under this Indenture or at the request, order or direction of the
Holders or in the exercise of any of its rights or powers if it shall have
reasonable grounds for believing that repayment of such funds or adequate
indemnity against such risk or liability is not reasonably assured to it.
 
  (e) Every provision of this Indenture that in any way relates to the Trustee
is subject to paragraphs (a), (b), (c), (d) and (f) of this Section 8.1.
 
 
                                      32
<PAGE>
 
  (f) The Trustee shall not be liable for interest on any assets received by
it except as the Trustee may agree in writing with the Company. Assets held in
trust by the Trustee need not be segregated from other assets except to the
extent required by law.
 
  SECTION 8.2 Rights of Trustee.
 
  Subject to Section 8.1:
 
  (a) The Trustee may rely on any document believed by it to be genuine and to
have been signed or presented by the proper Person. The Trustee need not
investigate any fact or matter stated in the document.
 
  (b) Before the Trustee acts or refrains from acting, it may consult with
counsel of its selection and may require an Officers' Certificate or an
Opinion of Counsel, which shall conform to Sections 12.4 and 12.5. The Trustee
shall not be liable for any action it takes or omits to take in good faith in
reliance on such certificate or advice of counsel. The advice of such counsel
or any Opinion of Counsel shall be full and complete authorization and
protection in respect of any action taken, suffered or omitted by it hereunder
in good faith and in reliance thereon.
 
  (c) The Trustee may act through its attorneys and agents and shall not be
responsible for the misconduct or negligence of any agent appointed with due
care.
 
  (d) The Trustee shall not be liable for any action it takes or omits to take
in good faith which it believes to be authorized or within its rights or
powers conferred upon it by this Indenture, nor for any action permitted to be
taken or omitted hereunder by any Agent.
 
  (e) The Trustee shall not be bound to make any investigation into the facts
or matters stated in any resolution, certificate, statement, instrument,
opinion, notice, request, direction, consent, order, bond, debenture, or other
paper or document, but the Trustee, in its discretion, may make such further
inquiry or investigation into such facts or matters as it may see fit.
 
  (f) The Trustee shall be under no obligation to exercise any of the rights
or powers vested in it by this Indenture at the request, order or direction of
any of the Holders, pursuant to the provisions of this Indenture, unless such
Holders shall have offered to the Trustee reasonable security or indemnity
against the costs, expenses and liabilities which may be incurred therein or
thereby.
 
  (g) Unless otherwise specifically provided for in this Indenture, any
demand, request, direction or notice from the Company shall be sufficient if
signed by an Officer of the Company.
 
  (h) The Trustee shall have no duty to inquire as to the performance of the
Company's covenants in Article V hereof or as to the performance by any Agent
of its duties hereunder. In addition, the Trustee shall not be deemed to have
knowledge of any Default or Event of Default except any Default or Event of
Default of which the Trustee shall have received written notification or with
respect to which a Trust Officer shall have actual knowledge.
 
  (i) Whenever in the administration of this Indenture the Trustee shall deem
it desirable that a matter be proved or established prior to taking, suffering
or omitting any action hereunder, the Trustee (unless other evidence be herein
specifically prescribed) may, in the absence of bad faith on its part, rely
upon an Officers' Certificate.
 
  (j) The Trustee may execute any of the trusts or powers hereunder or perform
any duties hereunder either directly or by or through agents or attorneys and
the Trustee shall not be responsible for any misconduct or negligence on the
part of any agent or attorney appointed with due care by it hereunder.
 
                                      33
<PAGE>
 
  SECTION 8.3 Individual Rights of Trustee.
 
  The Trustee in its individual or any other capacity may become the owner or
pledgee of Securities and may otherwise deal with the Company, any of its
Subsidiaries, or their respective Affiliates with the same rights it would
have if it were not Trustee. Any Agent may do the same with like rights.
However, the Trustee must comply with Sections 8.10 and 8.11.
 
  SECTION 8.4 Trustee's Disclaimer.
 
  The Trustee makes no representation as to the validity or adequacy of this
Indenture or the Securities and it shall not be accountable for the Company's
use of the proceeds from the Securities, and it shall not be responsible for
any statement in the Securities, other than the Trustee's certificate of
authentication (if executed by the Trustee), or the use or application of any
funds received by a Paying Agent other than the Trustee.
 
  SECTION 8.5 Notice of Default.
 
  If a Default or an Event of Default occurs and is continuing and if it is
known to the Trustee, the Trustee shall mail to each Securityholder notice of
the uncured Default or Event of Default within 90 days after such Default or
Event of Default occurs. Except in the case of a Default in the repayment of
principal or interest on any Security, the Trustee may withhold the notice if
and so long as a Trust Officer in good faith determines that withholding the
notice is in the interest of the Securityholders.
 
  SECTION 8.6 Reports by Trustee to Holders.
 
  Within 60 days after each         beginning with the         following the
date of this Indenture, the Trustee shall, if required by law, mail to each
Securityholder a brief report dated as of such         that complies with TIA
(S) 313(a). The Trustee also shall comply with TIA (S)(S) 313(b) and 313(c).
 
  The Company shall promptly notify the Trustee in writing if the Securities
become listed on any stock exchange or automatic quotation system.
 
  A copy of each report at the time of its mailing to Securityholders shall be
mailed to the Company and filed with the SEC and each stock exchange, if any,
on which the Securities are listed.
 
  SECTION 8.7 Compensation and Indemnity.
 
  The Company agrees to pay to the Trustee such compensation as the Company
and the Trustee shall from time to time agree in writing for its services. The
Trustee's compensation shall not be limited by any law on compensation of a
trustee of an express trust. The Company shall reimburse the Trustee upon
request for all reasonable disbursements, expenses and advances incurred or
made by it in accordance with this Indenture. Such expenses shall include the
reasonable compensation, disbursements and expenses of the Trustee's agents,
accountants, experts and counsel.
 
  The Company agrees to indemnify the Trustee or any predecessor Trustee (in
its capacity as Trustee) and each of its officers and each of them, directors,
attorneys-in-fact and agents for, and hold it harmless against, any claim,
demand, expense (including but not limited to taxes (other than taxes based
upon, measured by or determined by the income of the Trustee) and reasonable
compensation, disbursements and expenses of the Trustee's agents and counsel),
loss or liability incurred by it without negligence or bad faith on the part
of the Trustee, arising out of or in connection with the administration of
this trust and its rights or duties hereunder including the reasonable costs
and expenses of defending itself against any claim or liability in connection
with the exercise or performance of any of its powers or duties hereunder. The
Trustee shall notify the Company promptly of any claim asserted against the
Trustee for which it may seek indemnity. The Company shall defend the claim
and the Trustee shall provide reasonable cooperation at the Company's expense
in the defense. The Trustee may have separate counsel and the Company shall
 
                                      34
<PAGE>
 
pay the reasonable fees and expenses of such counsel. The Company need not pay
for any settlement made without its written consent. The Company need not
reimburse any expense or indemnify against any loss or liability to the extent
incurred by the Trustee through its negligence, bad faith or willful
misconduct.
 
  To secure the Company's payment obligations in this Section 8.7, the Trustee
shall have a lien on all assets held or collected by the Trustee, in its
capacity as Trustee, except assets held in trust to pay principal and premium,
if any, of or interest on particular Securities.
 
  When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 7.1(4) or (5) occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law.
 
  The Company's obligations under this Section 8.7 and any Lien arising
hereunder shall survive the resignation or removal of the Trustee, the
discharge of the Company's obligations pursuant to Article IX of this
Indenture and any rejection or termination of this Indenture under any
Bankruptcy Law.
 
  SECTION 8.8 Replacement of Trustee.
 
  The Trustee may resign by so notifying the Company in writing. The Holder or
Holders of a majority in aggregate principal amount of the outstanding
Securities may remove the Trustee by so notifying the Company and the Trustee
in writing and may appoint a successor trustee with the Company's consent. The
Company may remove the Trustee if:
 
    (a) the Trustee fails to comply with Section 8.10;
 
    (b) the Trustee is adjudged bankrupt or insolvent;
 
    (c) a receiver, Custodian, or other public officer takes charge of the
  Trustee or its property; or
 
    (d) the Trustee becomes incapable of acting.
 
  If the Trustee resigns or is removed or if a vacancy exists in the office of
Trustee for any reason, the Company shall promptly appoint a successor
Trustee. Within one year after the successor Trustee takes office, the Holder
or Holders of a majority in aggregate principal amount of the Securities may
appoint a successor Trustee to replace the successor Trustee appointed by the
Company.
 
  A successor Trustee shall deliver a written acceptance of its appointment to
the retiring Trustee and to the Company. Immediately after that and provided
that all sums owing to the retiring Trustee provided for in Section 8.7 have
been paid, the retiring Trustee shall transfer all property held by it as
trustee to the successor Trustee, subject to the lien provided in Section 8.7,
the resignation or removal of the retiring Trustee shall become effective, and
the successor Trustee shall have all the rights, powers and duties of the
Trustee under this Indenture. A successor Trustee shall mail notice of its
succession to each Holder.
 
  If a successor Trustee does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Company or
the Holder or Holders of at least 10% in aggregate principal amount of the
outstanding Securities may petition any court of competent jurisdiction for
the appointment of a successor Trustee.
 
  If the Trustee fails to comply with Section 8.10, any Securityholder may
petition any court of competent jurisdiction for the removal of the Trustee
and the appointment of a successor Trustee.
 
  Notwithstanding replacement of the Trustee pursuant to this Section 8.8, the
Company's obligations under Section 8.7 shall continue for the benefit of the
retiring Trustee.
 
                                      35
<PAGE>
 
  SECTION 8.9 Successor Trustee by Merger, Etc.
 
  If the Trustee consolidates with, merges or converts into, or transfers all
or substantially all of its corporate trust business to, another corporation,
the resulting, surviving or transferee corporation without any further act
shall, if such resulting, surviving or transferee corporation is otherwise
eligible hereunder, be the successor Trustee.
 
  SECTION 8.10 Eligibility; Disqualification.
 
  The Trustee shall at all times satisfy the requirements of TIA (S)
310(a)(1), (2) and (5). The Trustee shall have a combined capital and surplus
of at least $25 million as set forth in its most recent published annual
report of condition. The Trustee shall comply with TIA (S) 310(b).
 
  SECTION 8.11 Preferential Collection of Claims Against Company.
 
  The Trustee shall comply with TIA (S) 311(a), excluding any creditor
relationship listed in TIA (S) 311(b). A Trustee who has resigned or been
removed shall be subject to TIA (S) 311(a) to the extent indicated.
 
  SECTION 8.12 Money Held in Trust.
 
  Money held by the Trustee in trust hereunder need not be segregated from
other funds except to the extent required by law. The Trustee shall be under
no liability for interest on any money received by it hereunder except as
otherwise agreed in writing with the Company.
 
                                  ARTICLE IX
 
                   LEGAL DEFEASANCE AND COVENANT DEFEASANCE
 
  SECTION 9.1 Option to Effect Legal Defeasance or Covenant Defeasance.
 
  The Company may, at its option at any time elect to have Section 9.2 or may,
at any time, elect to have Section 9.3 applied to all outstanding Securities
upon compliance with the conditions set forth below in this Article IX.
 
  SECTION 9.2 Legal Defeasance and Discharge.
 
  Upon the Company's exercise under Section 9.1 of the option applicable to
this Section 9.2, the Company shall be deemed to have been discharged from its
obligations with respect to all outstanding Securities on the date the
conditions set forth below are satisfied (hereinafter, "Legal Defeasance").
For this purpose, such Legal Defeasance means that the Company shall be deemed
to have paid and discharged the entire indebtedness represented by the
outstanding Securities, which shall thereafter be deemed to be "outstanding"
only for the purposes of Section 9.5 and the other Sections of this Indenture
referred to in (a) and (b) below, and to have satisfied all its other
obligations under such Securities and this Indenture (and the Trustee, on
demand of and at the expense of the Company, shall execute proper instruments
acknowledging the same), except for the following which shall survive until
otherwise terminated or discharged hereunder: (a) the rights of Holders of
outstanding Securities to receive solely from the trust fund described in
Section 9.4, and as more fully set forth in such section, payments in respect
of the principal of, premium, if any, and interest on such Securities when
such payments are due, (b) the Company's obligations with respect to such
Securities under Sections 2.4, 2.6, 2.7, 2.10 and 5.2, (c) the rights, powers,
trusts, duties and immunities of the Trustee hereunder and the Company's
obligation in connection therewith and (d) this Article IX. Subject to
compliance with this Article IX, the Company may exercise its option under
this Section 9.2 notwithstanding the prior exercise of its option under
Section 9.3 with respect to the Securities.
 
                                      36
<PAGE>
 
  SECTION 9.3 Covenant Defeasance.
 
  Upon the Company's exercise under Section 9.1 of the option applicable to
this Section 9.3, the Company shall be released from its obligations under the
covenants contained in Sections 5.4, 5.5, 5.6, and Article VI with respect to
the outstanding Securities on and after the date the conditions set forth
below are satisfied (hereinafter, "Covenant Defeasance"), and the Securities
shall thereafter be deemed not "outstanding" for the purposes of any
direction, waiver, consent or declaration or act of Holders (and the
consequences of any thereof) in connection with such covenants, but shall
continue to be deemed "outstanding" for all other purposes hereunder. For this
purpose, such Covenant Defeasance means that, with respect to the outstanding
Securities, the Company need not comply with and shall have no liability in
respect of any term, condition or limitation set forth in any such covenant,
whether directly or indirectly, by reason of any reference elsewhere herein to
any such covenant or by reason of any reference in any such covenant to any
other provision herein or in any other document (and Section 7.1(3) shall not
apply to any such covenant), but, except as specified above, the remainder of
this Indenture and such Securities shall be unaffected thereby. In addition,
upon the Company's exercise under Section 9.1 of the option applicable to this
Section 9.3, Sections 7.1(3) through 7.1(5) shall not constitute Events of
Default.
 
  SECTION 9.4 Conditions to Legal or Covenant Defeasance.
 
  The following shall be the conditions to the application of either Section
9.2 or Section 9.3 to the outstanding Securities:
 
    (a) The Company shall irrevocably have deposited or caused to be
  deposited with the Trustee (or another trustee satisfactory to the Trustee
  satisfying the requirements of Section 8.10 who shall agree to comply with
  the provisions of this Article IX applicable to it) as trust funds in trust
  for the purpose of making the following payments, specifically pledged as
  security for, and dedicated solely to, the benefit of the Holders of such
  Securities, (a) Cash in an amount, or (b) U.S. Government Obligations which
  through the scheduled payment of principal and interest in respect thereof
  in accordance with their terms will provide, not later than one day before
  the due date of any payment, Cash in an amount, or (c) a combination
  thereof, in such amounts, as in each case will be sufficient, in the
  opinion of a nationally recognized firm of independent public accountants
  expressed in a written certification thereof delivered to the Trustee, to
  pay and discharge and which shall be applied by the Paying Agent (or other
  qualifying trustee) to pay and discharge the principal of, premium, if any,
  and interest on the outstanding Securities on the stated maturity or on the
  applicable redemption date, as the case may be, of such principal or
  installment of principal, premium, if any, or interest; provided that the
  Paying Agent shall have been irrevocably instructed to apply such Cash and
  the proceeds of such U.S. Government Obligations to said payments with
  respect to the Securities. The Paying Agent shall promptly advise the
  Trustee in writing of any Cash or securities deposited pursuant to this
  Section 9.4.
 
    (b) In the case of an election under Section 9.2, the Company shall have
  delivered to the Trustee an Opinion of Counsel in the United States
  reasonably acceptable to the Trustee confirming that (i) the Company has
  received from, or there has been published by, the Internal Revenue Service
  a ruling or (ii) since the date hereof, there has been a change in the
  applicable Federal income tax law, in either case to the effect that, and
  based thereon such opinion shall confirm that, the Holders of the
  outstanding Securities will not recognize income, gain or loss for Federal
  income tax purposes as a result of such Legal Defeasance and will be
  subject to Federal income tax on the same amounts, in the same manner and
  at the same times as would have been the case if such Legal Defeasance had
  not occurred;
 
    (c) In the case of an election under Section 9.3, the Company shall have
  delivered to the Trustee an Opinion of Counsel in the United States to the
  effect that the Holders of the outstanding Securities will not recognize
  income, gain or loss for Federal income tax purposes as a result of such
  Covenant Defeasance and will be subject to Federal income tax in the same
  amount, in the same manner and at the same times as would have been the
  case if such Covenant Defeasance had not occurred;
 
                                      37
<PAGE>
 
    (d) No Default or Event of Default with respect to the Securities shall
  have occurred and be continuing on the date of such deposit or, in so far
  as Section 7.1(4) or Section 7.1(5) is concerned, at any time in the period
  ending on the 91st day after the date of such deposit (it being understood
  that this condition is a condition subsequent which shall not be deemed
  satisfied until the expiration of such period, but in the case of Covenant
  Defeasance, the covenants which are defeased under Section 9.3 will cease
  to be in effect unless an Event of Default under Section 7.1(4) or Section
  7.1(5) occurs during such period);
 
    (e) Such Legal Defeasance or Covenant Defeasance shall not result in a
  breach or violation of, or constitute a default under, this Indenture or
  any other material agreement or instrument to which the Company or any of
  its Subsidiaries is a party or by which any of them is bound;
 
    (f) In the case of an election under either Section 9.2 or 9.3, the
  Company shall have delivered to the Trustee an Officers' Certificate
  stating that the deposit made by the Company pursuant to its election under
  Section 9.2 or 9.3 was not made by the Company with the intent of
  preferring the Holders over other creditors of the Company or with the
  intent of defeating, hindering, delaying or defrauding creditors of the
  Company or others; and
 
    (g) The Company shall have delivered to the Trustee an Officers'
  Certificate stating that the conditions precedent provided for have been
  complied with.
 
  SECTION 9.5 Deposited Cash and U.S. Government Obligations to be Held in
Trust; Other Miscellaneous Provisions.
 
  Subject to Section 9.6, all Cash and U.S. Government Obligations (including
the proceeds thereof) deposited with the Paying Agent (or other qualifying
trustee, collectively for purposes of this Section 9.5, the "Paying Agent")
pursuant to Section 9.4 in respect of the outstanding Securities shall be held
in trust and applied by the Paying Agent, in accordance with the provisions of
such Securities and this Indenture, to the payment, either directly or through
any other Paying Agent as the Trustee may determine, to the Holders of such
Securities of all sums due and to become due thereon in respect of principal,
premium, if any, and interest, but such money need not be segregated from
other funds except to the extent required by law.
 
  SECTION 9.6 Repayment to the Company.
 
  Anything in this Article IX to the contrary notwithstanding, the Trustee or
the Paying Agent, as applicable, shall deliver or pay to the Company from time
to time upon the request of the Company any Cash or U.S. Government
Obligations held by it as provided in Section 9.4 hereof which in the opinion
of a nationally recognized firm of independent public accountants expressed in
a written certification thereof delivered to the Trustee (which may be the
opinion delivered under Section 9.4(a) hereof), are in excess of the amount
thereof that would then be required to be deposited to effect an equivalent
Legal Defeasance or Covenant Defeasance.
 
  Any Cash and U.S. Government Obligations (including the proceeds thereof)
deposited with the Trustee or any Paying Agent, or then held by the Company,
in trust for the payment of the principal of, premium, if any, or interest on
any Security and remaining unclaimed for two years after such principal, and
premium, if any, or interest has become due and payable shall be paid to the
Company on its request; and the Holder of such Security shall thereafter look
only to the Company for payment thereof, and all liability of the Trustee or
such Paying Agent with respect to such trust money shall thereupon cease;
provided, however, that the Trustee or such Paying Agent, before being
required to make any such repayment, may at the expense of the Company cause
to be published once, in the New York Times and The Wall Street Journal
(national edition), notice that such money remains unclaimed and that, after a
date specified therein, which shall not be less than 30 days from the date of
such notification or publication, any unclaimed balance of such money then
remaining will be repaid to the Company.
 
                                      38
<PAGE>
 
  SECTION 9.7 Reinstatement.
 
  If the Trustee or Paying Agent is unable to apply any Cash or U.S.
Government Obligations in accordance with Section 9.2 or 9.3, as the case may
be, by reason of any order or judgment of any court or governmental authority
enjoining, restraining or otherwise prohibiting such application, then the
Company's obligations under this Indenture and the Securities shall be revived
and reinstated as though no deposit had occurred pursuant to Section 9.2 or
9.3 until such time as the Trustee or Paying Agent is permitted to apply such
money in accordance with Section 9.2 and 9.3, as the case may be; provided,
however, that, if the Company makes any payment of principal of, premium, if
any, or interest on any Security following the reinstatement of its
obligations, the Company shall be subrogated to the rights of the Holders of
such Securities to receive such payment from the Cash and U.S. Government
Obligations held by the Trustee or Paying Agent.
 
                                   ARTICLE X
 
                      AMENDMENTS, SUPPLEMENTS AND WAIVERS
 
  SECTION 10.1 Supplemental Indentures Without Consent of Holders.
 
  Without the consent of or notice to any Holder, the Company, when authorized
by a Board Resolution, and the Trustee, at any time and from time to time, may
amend or supplement this Indenture or the Securities for any of the following
purposes:
 
    (1) to cure any ambiguity, defect, or inconsistency;
 
    (2) to add to the covenants of the Company for the benefit of the
  Holders, or to surrender any right or power herein conferred upon the
  Company;
 
    (3) to make provision with respect to the conversion rights of Holders
  pursuant to the requirements of Section 4.6 or 4.12;
 
    (4) to evidence the succession of another Person to the Company and the
  assumption by any such successor of the obligations of the Company herein
  and in the Securities in accordance with Article VI;
 
    (5) to comply with the TIA;
 
    (6) to evidence and provide for the acceptance of appointment hereunder
  by a successor Trustee with respect to the Securities; or
 
    (7) to make any change that does not adversely affect the legal rights of
  any Holder in any material respect.
 
  SECTION 10.2 Amendments, Supplemental Indentures and Waivers with Consent of
Holders.
 
  Subject to Section 7.8, with the consent of the Holders of not less than a
majority in aggregate principal amount of then outstanding Securities, by
written act of said Holders delivered to the Company and the Trustee, the
Company, when authorized by Board Resolutions, and the Trustee may amend or
supplement this Indenture or the Securities or enter into an indenture or
indentures supplemental hereto for the purpose of adding any provisions to or
changing in any manner or eliminating any of the provisions of this Indenture
or the Securities or of modifying in any manner the rights of the Holders
under this Indenture or the Securities. Subject to Section 7.8, the Holder or
Holders of not less than a majority in aggregate principal amount of then
outstanding Securities may waive compliance by the Company with any provision
of this Indenture or the Securities. Notwithstanding any of the above,
however, no such amendment, supplemental indenture or waiver shall without the
consent of the Holder of each outstanding Security affected thereby:
 
    (1) reduce the percentage of principal amount of Securities whose Holders
  must consent to an amendment, supplement or waiver of any provision of this
  Indenture or the Securities;
 
                                      39
<PAGE>
 
    (2) reduce the rate or extend the time for payment of interest on any
  Security;
 
    (3) reduce the principal or premium amount of any Security, or reduce the
  Redemption Price;
 
    (4) change the Stated Maturity;
 
    (5) alter the redemption provisions of Article III in a manner adverse to
  any Holder;
 
    (6) make any changes in Section 7.8, 7.12 (except to increase the
  aggregate principal amount of Securities necessary to waive any past
  Default or to include in other provisions of this Indenture, a Default in
  respect of which may not be governed by Section 7.12) or this third
  sentence of this Section 10.2;
 
    (7) make the principal of, or the interest or premium on, any Security
  payable with anything or in any manner other than as provided for in this
  Indenture (including changing the place of payment where, or the coin or
  currency in which, any Security or any premium or the interest thereon is
  payable) and the Securities as in effect on the date hereof;
 
    (8) adversely affect the right to convert any security as provided in
  Article IV;
 
    (9) modify the subordination provisions in a manner adverse to the
  Holders of the Securities.
 
  It shall not be necessary for the consent of the Holders under this Section
10.2 to approve the particular form of any proposed amendment, supplement or
waiver, but it shall be sufficient if such consent approves the substance
thereof.
 
  After an amendment, supplement or waiver under this Section 10.2 becomes
effective, the Company shall mail to the Holders affected thereby a notice
briefly describing the amendment, supplement or waiver. Any failure of the
Company to mail such notice, or any defect therein, shall not, however, in any
way impair or affect the validity of any such supplemental indenture or
waiver.
 
  After an amendment, supplement or waiver under this Section 10.2 or Section
10.4 becomes effective, it shall bind each Holder.
 
  In connection with any amendment, supplement or waiver under this Article X,
the Company may, but shall not be obligated to, offer to any Holder who
consents to such amendment, supplement or waiver, or to all Holders,
consideration for such Holder's consent to such amendment, supplement or
waiver.
 
  SECTION 10.3 Compliance with TIA.
 
  Every amendment, waiver or supplement of this Indenture or the Securities
shall comply with the TIA as then in effect.
 
  SECTION 10.4 Revocation and Effect of Consents.
 
  Until an amendment, waiver or supplement becomes effective, a consent to it
by a Holder is a continuing consent by the Holder and every subsequent Holder
of a Security or portion of a Security that evidences the same debt as the
consenting Holder's Security, even if notation of the consent is not made on
any Security. However, any such Holder or subsequent Holder may revoke the
consent as to his Security or portion of his Security by written notice to the
Company or the Person designated by the Company as the Person to whom consents
should be sent if such revocation is received by the Company or such Person
before the date on which the Trustee receives an Officers' Certificate
certifying that the Holders of the requisite principal amount of Securities
have consented (and not theretofore revoked such consent) to the amendment,
supplement or waiver.
 
  The Company may, but shall not be obligated to, fix a record date for the
purpose of determining the Holders entitled to consent to any amendment,
supplement or waiver, which record date shall be the date
 
                                      40
<PAGE>
 
so fixed by the Company notwithstanding the provisions of the TIA. If a record
date is fixed, then notwithstanding the last sentence of the immediately
preceding paragraph, those Persons who were Holders at such record date, and
only those Persons (or their duly designated proxies), shall be entitled to
revoke any consent previously given, whether or not such Persons continue to
be Holders after such record date. No such consent shall be valid or effective
for more than 90 days after such record date.
 
  After an amendment, supplement or waiver becomes effective, it shall bind
every Securityholder, unless it makes a change described in any of clauses (1)
through (9) of Section 10.2, in which case, the amendment, supplement or
waiver shall bind only each Holder of a Security who has consented to it and
every subsequent Holder of a Security or portion of a Security that evidences
the same debt as the consenting Holder's Security; provided, that any such
waiver shall not impair or affect the right of any Holder to receive payment
of principal and premium of and interest on a Security, on or after the
respective dates set for such amounts to become due and payable expressed in
such Security, or to bring suit for the enforcement of any such payment on or
after such respective dates.
 
  SECTION 10.5 Notation on or Exchange of Securities.
 
  If an amendment, supplement or waiver changes the terms of a Security, the
Trustee may require the Holder of the Security to deliver it to the Registrar
or require the Holder to put an appropriate notation on the Security. The
Trustee may place an appropriate notation on the Security about the changed
terms and return it to the Holder. Alternatively, if the Company or the
Trustee so determines, the Company in exchange for the Security shall issue
and the Trustee shall authenticate a new Security that reflects the changed
terms. Any failure to make the appropriate notation or to issue a new Security
shall not affect the validity of such amendment, supplement or waiver.
 
  SECTION 10.6 Trustee to Sign Amendments, Etc.
 
  The Trustee shall execute any amendment, supplement or waiver authorized
pursuant to this Article X; provided, that the Trustee may, but shall not be
obligated to, execute any such amendment, supplement or waiver which affects
the Trustee's own rights, duties or immunities under this Indenture. The
Trustee shall be entitled to receive, and shall be fully protected in relying
upon, an Opinion of Counsel stating that the execution of any amendment,
supplement or waiver authorized pursuant to this Article X is authorized or
permitted by this Indenture. The Trustee may, but shall not be obligated to,
enter into any such supplemental indenture which affects the trustee's own
rights, duties or immunities under this Indenture or otherwise.
 
                                  ARTICLE XI
 
                          SUBORDINATION OF SECURITIES
 
  SECTION 11.1 Securities Subordinate to Senior Indebtedness.
 
  The Company covenants and agrees, and each Holder of a Security by his
acceptance thereof likewise covenants and agrees, that, to the extent and in
the manner hereinafter set forth in this Article XI, the indebtedness
represented by the Securities and the payment of the principal of (and
premium, if any) and interest on each and all of the Securities are hereby
expressly made subordinate and subject in right of payment to the prior
payment in full of all Senior Indebtedness.
 
  SECTION 11.2 Payment Over of Proceeds Upon Dissolution, Etc.
 
  Upon any distribution of assets of the Company in the event of (a) any
insolvency or bankruptcy case or proceeding, or any receivership, liquidation,
reorganization or other similar case or proceeding in
 
                                      41
<PAGE>
 
connection therewith, relative to the Company or to its creditors, as such, or
to its assets or (b) any liquidation, dissolution or other winding up of the
Company, whether voluntary or involuntary and whether or not involving
insolvency or bankruptcy or (c) any assignment for the benefit of creditors or
any other marshalling of assets and liabilities of the Company, then and in
any such event the holders of Senior Indebtedness shall be entitled to receive
payment in full of all amounts due or to become due on or in respect of all
Senior Indebtedness (including, without limitation, interest thereon accruing
after the commencement of any such case, proceeding or action but only to the
extent that such holders of Senior Indebtedness shall have been determined to
be entitled to receive such interest from the Company), or provisions shall be
made for such payment in money or money's worth, before the Holders of the
Securities are entitled to receive any payment on account of principal of (or
premium, if any) or interest on the Securities, and to that end the holders of
Senior Indebtedness shall be entitled to receive, for application to the
payment thereof, any payment or distribution of any kind or character, whether
in cash, property or securities, including any such payment or distribution
which may be payable or deliverable by reason of the payment of any other
indebtedness of the Company being subordinated to the payment of the
Securities, which may be payable or deliverable in respect of the Securities
in any such case, proceeding or action. In the event that (1) any case,
proceeding or action described in clauses (a) through (c) above shall have
occurred and (2) a proper claim or proof of debt shall not have been filed on
behalf of the Holders of the Securities at least 10 days prior to the
expiration of the time to file such claim or proof of debt, any holder of
Senior Indebtedness, on behalf of all holders of Senior Indebtedness then
outstanding, shall be entitled to file, on behalf of the Holders of the
Securities, an appropriate claim or proof of debt for the unpaid balance of
the Securities or other amounts owing in respect of the Securities in the form
required in such case, proceeding or action and to cause such claim to be
approved.
 
  In the event that, notwithstanding the foregoing provisions of this Section,
the Trustee or the Holder of any Security shall have received any payment or
distribution of assets of the Company of any kind or character, whether in
cash, property or securities, including any such payment or distribution which
may be payable or deliverable by reason of the payment of any other
indebtedness of the Company being subordinated to the payment of the
Securities, before all Senior Indebtedness is paid in full or payment thereof
provided for, and if such fact shall then have been made known to the Trustee,
then and in such event such payment or distribution shall be paid over or
delivered forthwith to the trustee in bankruptcy, receiver, liquidating
trustee, custodian, assignee, agent or other Person making payment or
distribution of assets of the Company for application to the payment of all
Senior Indebtedness remaining unpaid, to the extent necessary to pay all
Senior Indebtedness in full, after giving effect to any concurrent payment or
distribution to or for the holders of Senior Indebtedness.
 
  For purposes of this Article only, the words "cash, property or securities"
shall not be deemed to include shares of stock of the Company as reorganized
or readjusted, or securities of the Company or any other corporation provided
for by a plan of reorganization or readjustment the payment of which is
subordinated at least to the extent provided in this Article XI with respect
to the Securities to the payment of all Senior Indebtedness which may at the
time be outstanding; provided, however, that (a) such Senior Indebtedness is
assumed by the new corporation, if any, resulting from any such reorganization
or readjustment and (b) the rights of the holders of the Senior Indebtedness
are not, without the consent of such holders, altered by such reorganization
or readjustment. The consolidation of the Company with, or the merger of the
Company into, another Person or the liquidation or dissolution of the Company
following the conveyance or transfer of its properties and assets
substantially as an entirety to another Person (in each case, upon the terms
and conditions set forth in Article VI and in full compliance with any
document pursuant to which Senior Indebtedness shall then be outstanding)
shall not be deemed a dissolution, winding up, liquidation, reorganization,
assignment for the benefit of creditors or marshalling of assets and
liabilities of the Company for the purposes of this Section if the Person
formed by such consolidation or into which the Company is merged or the Person
which acquires by conveyance or transfer such properties and assets
substantially as an entirety, as the case may be, shall, as a part of such
consolidation, merger, conveyance or transfer, comply with the conditions set
forth in Article VI.
 
                                      42
<PAGE>
 
  SECTION 11.3 Prior Payment to Senior Indebtedness Upon Acceleration of
Securities.
 
  In the event that any Securities are declared due and payable before their
Stated Maturity, then and in such event the holders of Senior Indebtedness
outstanding at the time such Securities so become due and payable shall be
entitled to receive payment in full of all amounts due or to become due on or
in respect of all such Senior Indebtedness, or provision shall be made for
such payment in money or money's worth, before the Holders of the Securities
are entitled to receive any payment (including any payment which may be
payable by reason of the payment of any other indebtedness of the Company
being subordinated to the payment of the Securities) by the Company on account
of the principal of (or premium, if any) or interest on the Securities or on
account of the purchase or other acquisition of Securities.
 
  In the event that, notwithstanding the foregoing, the Company shall make any
payment to the Trustee or the Holder of any Securities prohibited by the
foregoing provisions of this Section, and if such facts shall then have been
made known to the Trustee, then and in such event such payment shall be paid
over and delivered forthwith to the Company for the benefit of the holders of
Senior Indebtedness.
 
  The provisions of this Section shall not apply to any payment with respect
to which Section 11.2 would be applicable.
 
  SECTION 11.4 No Payment When Senior Indebtedness in Default.
 
  (a) In the event and during the continuation of any default in the payment
of principal (or premium, if any) or interest on any Senior Indebtedness
beyond any applicable grace period with respect thereto, or in the event that
any event of default with respect to any Senior Indebtedness shall have
occurred and be continuing permitting the holders of such Senior Indebtedness
(or a trustee on behalf of the holders thereof) to declare such Senior
Indebtedness due and payable prior to the date on which it would otherwise
have become due and payable, unless and until such event of default shall have
been cured or waived or shall have ceased to exist and such acceleration shall
have been rescinded or annulled or (b) in the event any judicial proceeding
shall be pending with respect to any such default in payment or event of
default; then no payment (including any payment which may be payable by reason
of the payment of any other indebtedness of the Company being subordinated to
the payment of the Securities) shall be made by the Company on account of
principal of (or premium, if any) or interest on the Securities or on account
of the purchase or other acquisition of Securities.
 
  In the event that, notwithstanding the foregoing, the Company shall make any
payment to the Trustee or the Holder of any Security prohibited by the
foregoing provisions of this Section, and if such fact shall then have been
made known to the Trustee, then and in such event such payment shall be paid
over and delivered forthwith to the Company for the benefit of the holders of
Senior Indebtedness.
 
  The provisions of this Section shall not apply to any payment with respect
to which Section 11.2 would be applicable.
 
  SECTION 11.5 Payment Permitted if No Default.
 
  Nothing contained in this Article XI or elsewhere in this Indenture or in
any of the Securities shall prevent (a) the Company, at any time except during
the pendency of any insolvency or bankruptcy case or proceeding, dissolution,
liquidation or other winding up, assignment for the benefit of creditors or
other marshalling of assets and liabilities of the Company referred to in
Section 11.2 or under the conditions described in Section 11.3 or 11.4, from
making payments at any time of principal of (and premium, if any) or interest
on the Securities or (b) the application by the Trustee or the retention
thereof by the Holders of any money deposited with the Trustee hereunder to
the payment of or on account of the principal of (and premium, if any) or
interest on the Securities if, at the time of such application, a Trust
Officer had not received written notice of any event that would have
prohibited such payment under the provisions of this Article XI.
 
                                      43
<PAGE>
 
  SECTION 11.6 Restrictions on Acceleration and Exercise of Remedies.
 
  Notwithstanding the provisions of Sections 7.2, 7.3, 7.4, 7.5 and 7.6,
unless the holders of Senior Indebtedness shall have accelerated the maturity
of all Senior Indebtedness or any case, proceeding or action described in
clauses (a) through (c) of Section 11.2 shall have occurred, the holders of
the Securities shall be prohibited from taking any action involving the
collection of the Securities including, without limitation, directly or
indirectly, accelerating the maturity of the Securities or suing for or
exercising any right of setoff for the collection of any amounts due in
respect of the Securities (a) during any period commencing upon the occurrence
of any condition described in Section 11.4 and continuing until (and
including) the earlier to occur of (1) the date such condition shall have been
eliminated or (2) the one hundred twentieth day from the date of the
occurrence of such condition (such period being hereinafter referred to as a
"Blockage Period"), (b) based upon a failure to make any payment in respect of
the Securities (other than payments that became due before the Company shall
have become prohibited from making such payment under this Article XI) which
the Company shall have become prohibited from making under the provisions of
this Article XI unless such payment remains unpaid on the ninety-first day
following the termination of such prohibition or (c) based upon an Event of
Default which is cured prior to the expiration of such prohibition.
 
  Notwithstanding anything to the contrary contained in this Section 11.6, in
no event shall two Blockage Periods occur consecutively; instead, at least one
Business Day shall elapse following the expiration of a Blockage Period before
a new Blockage Period may be invoked under this Section.
 
  SECTION 11.7 Subrogation to Rights of Holders of Senior Indebtedness.
 
  Subject to the payment in full of all Senior Indebtedness, the Holders of
the Securities shall be subrogated to the extent of the payments or
distributions made to the holders of such Senior Indebtedness pursuant to the
provisions of this Article XI to the rights of the holders of such Senior
Indebtedness to receive payments or distributions of cash, property or
securities applicable to the Senior Indebtedness until the principal of (and
premium, if any) and interest on the Securities shall be paid in full. For
purposes of such subrogation, no payments or distributions to the holders of
the Senior Indebtedness of any cash, property or securities to which the
Holders of the Securities or the Trustee would be entitled except for the
provisions of this Article XI, and no payments over pursuant to the provisions
of this Article XI to the Company or to the holders of Senior Indebtedness by
Holders of the Securities or the Trustee shall, as between the Company, its
creditors other than holders of Senior Indebtedness and the Holders of the
Securities, be deemed to a payment or distribution by the Company to or on
account of the Securities.
 
  SECTION 11.8 Provisions Solely to Define Relative Rights.
 
  The provisions of this Article XI are and are intended solely for the
purpose of defining the relative rights of the Holders of the Securities, on
the one hand, and the holders of Senior Indebtedness, on the other hand.
Nothing contained in this Article XI or elsewhere in this Indenture or in the
Securities is intended to or shall impair, as between the Company, its
creditors and the Holders of the Securities, the obligation of the Company,
which is absolute and unconditional, to pay to the Holders of the Securities
the principal of (and premium, if any) and interest on the Securities as and
when the same shall become due and payable in accordance with their terms and
which, subject to the rights under this Article XI of the holders of Senior
Indebtedness, is intended to rank equally with all general obligations of the
Company, or is intended to or shall affect the relative rights against the
Company of the Holders of the Securities and creditors of the Company other
than the holders of Senior Indebtedness, nor shall anything herein or therein
prevent the Trustee or the Holder of any Security from exercising all remedies
otherwise permitted by applicable law upon default under this Indenture,
subject to the rights, if any, under this Article XI of the holders of Senior
Indebtedness to receive cash, property or securities otherwise payable or
deliverable to the Trustee or such Holder.
 
                                      44
<PAGE>
 
  SECTION 11.9 Trustee to Effectuate Subordination.
 
  Each Holder of a Security by his acceptance thereof authorizes and directs
the Trustee on his behalf to take such action as may be necessary or
appropriate to effectuate the subordination provided in this Article XI and
appoints the Trustee his attorney-in-fact for any and all such purposes.
 
  SECTION 11.10 No Waiver of Subordination Provisions.
 
  No right of any present or future holder of any Senior Indebtedness to
enforce subordination as herein provided shall at any time in any way be
prejudiced or impaired by any act or failure to act on the part of the Company
or by any act or failure to act in good faith by any such holder, or by any
noncompliance by the Company with the terms, provisions and covenants of this
Indenture, regardless of any knowledge thereof any such holder may have or be
otherwise charged with.
 
  Without in any way limiting the generality of the foregoing paragraph, the
holders of Senior Indebtedness may, at any time and from time to time, without
the consent of or notice to the Trustee or the Holders of the Securities,
without incurring responsibility to the Holders of the Securities and without
impairing or releasing the subordination provided in this Article XI or the
obligations hereunder of the Holders of the Securities to the holders of
Senior Indebtedness, do any one or more of the following: (a) change the
manner, place or terms of payment or extend the time of payment of, or renew
or alter, Senior Indebtedness, or otherwise amend or supplement in any manner
Senior Indebtedness or any instrument evidencing the same or any agreement
under which Senior Indebtedness is outstanding; (b) sell, exchange, release or
otherwise deal with any property pledged, mortgaged or otherwise securing
Senior Indebtedness; (c) release any Person liable in any manner for the
collection of Senior Indebtedness; and (d) exercise or refrain from exercising
any rights against the Company and any other Person.
 
  SECTION 11.11 Notice to Trustee.
 
  The Company shall give prompt written notice to the Trustee of any fact
known to the Company which would prohibit the making of any payment to or by
the Trustee in respect of the Securities. Failure to give such notice shall
not affect the subordination of the Securities to Senior Indebtedness.
Notwithstanding the provisions of this Article XI or any other provision of
this Indenture, the Trustee shall not be charged with knowledge of the
existence of any facts which would prohibit the making of any payment to or by
the Trustee in respect of the Securities, unless and until a Trust Officer
shall have received written notice thereof from the Company or a holder of
Senior Indebtedness or from any trustee therefor; and, prior to the receipt of
any such written notice, the Trustee, except during the continuance of an
Event of Default, shall be entitled in all respects to assume that no such
facts exist; provided, however, that if the Trustee shall not have received,
at least three Business Days prior to the date upon which by the terms hereof
any such money may become payable for any purpose (including without
limitation, the payment of the principal of, and premium, if any, or interest
on any Security), the notice with respect to such money provided for in this
Section, then, anything herein contained to the contrary notwithstanding, the
Trustee shall have full power and authority to receive such money and to apply
the same to the purpose for which such money was received and shall not be
affected by any notice to the contrary which may be received by it within
three Business Days prior to such date.
 
  Except during the continuance of an Event of Default, the Trustee shall be
entitled to rely on the delivery to it of a written notice by a Person
representing himself to be a holder of Senior Indebtedness (or a trustee on
behalf of such holder) to establish that such notice has been given by a
holder of Senior Indebtedness (or a trustee on behalf of any such holder). In
the event that the Trustee determines in good faith that further evidence is
required with respect to the right of any Person as a holder of Senior
Indebtedness to participate in any payment or distribution pursuant to this
Article XI, the Trustee may request such Person to furnish evidence to the
reasonable satisfaction of the Trustee as to the amount of Senior Indebtedness
held by such Person, the extent to which such Person is entitled to
participate in such
 
                                      45
<PAGE>
 
payment or distribution and any other facts pertinent to the rights of such
Person under this Article XI, and if such evidence is not furnished, the
Trustee may defer any payment to such Person pending judicial determination as
to the right of such Person to receive such payment.
 
  SECTION 11.12 Reliance on Judicial Order or Certificate of Liquidating
Agent.
 
  Upon any payment or distribution of assets of the Company referred to in
this Article XI, the Trustee, except during the continuance of an Event of
Default, and the Holders of the Securities shall be entitled to rely upon any
order or decree entered by any court of competent jurisdiction in which such
insolvency, bankruptcy, receivership, liquidation, reorganization,
dissolution, winding up or similar case or proceeding is pending, or a
certificate of the trustee in bankruptcy, liquidating trustee, custodian,
receiver, assignee for the benefit of creditors, agent or other Person making
such payment or distribution, delivered to the Trustee or to the Holders of
Securities, for the purpose of ascertaining the Persons entitled to
participate in such payment or distribution, the holders of Senior
Indebtedness and other indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all
other facts pursuant thereto to this Article XI.
 
  SECTION 11.13 Trustee Not Fiduciary for Holders of Senior Indebtedness.
 
  The Trustee shall not be deemed to owe any fiduciary duty to the holders of
Senior Indebtedness.
 
  SECTION 11.14 Rights of Trustee as Holder of Senior Indebtedness;
Preservation of Trustee's Rights.
 
  The Trustee in its individual capacity shall be entitled to all the rights
set forth in this Article XI with respect to any Senior Indebtedness which may
at any time be held by it, to the same extent as any other holder of Senior
Indebtedness, and nothing in this Indenture shall deprive the Trustee of any
of its rights as such holder.
 
  Nothing in this Article XI shall apply to claims of, or payments to, the
Trustee or any predecessor Trustee under or pursuant to Section 8.7.
 
  SECTION 11.15 Article Applicable to Paying Agent.
 
  In case at any time any Paying Agent other than the Trustee shall have been
appointed by the Company and be then acting hereunder, the term "Trustee" as
used in this Article XI shall in such case (unless the context otherwise
requires) be construed as extending to and including such Paying Agent within
its meaning as fully for all intents and purposes as if such Paying Agent were
named in this Article XI in addition to or in place of the Trustee; provided,
however, that (a) all notices received by, and the knowledge of, the Trustee
shall, for purposes of the application of this Section 11.15, be attributed to
any such Paying Agent for all purposes such that to invoke the provisions of
this Article XI any holder of Senior Indebtedness shall only be required to
notify the Trustee and shall not be required to verify any Paying Agent and
(b) Section 11.14 shall not apply to the Company or any Affiliate of the
Company if it or such Affiliate acts as Paying Agent.
 
  SECTION 11.16 Reinstatement of Senior Indebtedness.
 
  To the extent that any payment of Senior Indebtedness (whether by or on
behalf of the Company, as proceeds of security or enforcement of any right of
set off or otherwise) is declared to be fraudulent or preferential, set aside
or required to be paid over to a trustee, receiver or other similar party
under any applicable bankruptcy or insolvency law, then, if such payment is
received by, or paid over to, such trustee, receiver or other similar party,
the Senior Indebtedness or part thereof originally intended to be satisfied
shall be deemed to be reinstated and outstanding as if such payment had not
occurred.
 
                                      46
<PAGE>
 
                                  ARTICLE XII
 
                                 MISCELLANEOUS
 
  SECTION 12.1 TIA Controls.
 
  If any provision of this Indenture limits, qualifies, or conflicts with the
duties imposed by operation of the TIA, the imposed duties, upon qualification
of this Indenture under the TIA, shall control.
 
  SECTION 12.2 Notices.
 
  Any notices or other communications to the Company, Paying Agent, Registrar,
transfer agent or the Trustee required or permitted hereunder shall be in
writing, and shall be sufficiently given if made by hand delivery, by telex,
by telecopier or registered or certified mail, postage prepaid, return receipt
requested, addressed as follows:
 
    if to the Company:
 
      Laboratory Corporation of America Holdings
      358 South Main Street
      Burlington, North Carolina 27215
      Telephone: (910) 229-1127
      Telecopy: (910) 222-1755
      Attention: Bradford T. Smith
                  Executive Vice President, General Counsel,
                  Corporate Compliance Officer and Secretary
 
    if to the Trustee, Paying Agent or Registrar:
 
      First Union National Bank of North Carolina
      First Union Customer Information Center
      Corporate Trust Operations
      1525 West W.T. Harris Blvd.,
      3C3
      Charlotte, North Carolina 28288-1153
      Telephone: (704) 374-2670
      Telecopy: (704) 383-7316
      Attention: Corporate Trust Administration
      drop address:
      First Union National Bank
      40 Broad Street
      5th Floor, Suite 550
      New York, New York 10004
 
  Any party by notice to each other party may designate additional or
different addresses as shall be furnished in writing by such party. Any notice
or communication to any party shall be deemed to have been given or made as of
the date so delivered, if personally delivered; when answered back, if
telexed; when receipt is acknowledged, if telecopied; and five Business Days
after mailing if sent by registered or certified mail, postage prepaid (except
that a notice of change of address shall not be deemed to have been given
until actually received by the addressee).
 
  Any notice or communication mailed to a Securityholder shall be mailed to
him by first class mail or other equivalent means at his address as it appears
on the registration books of the Registrar and shall be sufficiently given to
him if so mailed within the time prescribed.
 
                                      47
<PAGE>
 
  Failure to mail a notice or communication to a Securityholder or any defect
in it shall not affect its sufficiency with respect to other Securityholders.
If a notice or communication is mailed in the manner provided above, it is
duly given, whether or not the addressee receives it.
 
  SECTION 12.3 Communications by Holders with Other Holders.
 
  Securityholders may communicate pursuant to TIA (S) 312(b) with other
Securityholders with respect to their rights under this Indenture or the
Securities. The Company, the Trustee, the Registrar and any other Person shall
have the protection of TIA (S) 312(c).
 
  SECTION 12.4 Certificate and Opinion as to Conditions Precedent.
 
  Upon any request or application by the Company to the Trustee to take any
action under this Indenture, such Person shall furnish to the Trustee:
 
    (1) an Officers' Certificate (in form and substance reasonably
  satisfactory to the Trustee) stating that, in the opinion of the signers,
  all conditions precedent, if any, provided for in this Indenture relating
  to the proposed action have been met; and
 
    (2) an Opinion of Counsel (in form and substance reasonably satisfactory
  to the Trustee), stating that, in the opinion of such counsel, all such
  conditions precedent have been met;
 
provided, however, that in the case of any such request or application as to
which the furnishing of particular documents is specifically required by any
provision of this Indenture, no additional certificate or opinion need be
furnished under this Section 12.4.
 
  SECTION 12.5 Statements Required in Certificate or Opinion.
 
  Each certificate or opinion with respect to compliance with a condition or
covenant provided for in this Indenture shall include:
 
    (1) a statement that the Person making such certificate or opinion has
  read such covenant or condition;
 
    (2) a brief statement as to the nature and scope of the examination or
  investigation upon which the statements or opinions contained in such
  certificate or opinion are based;
 
    (3) a statement that, in the opinion of such Person, he has made such
  examination or investigation as is necessary to enable him to express an
  informed opinion as to whether or not such covenant or condition has been
  met; and
 
    (4) a statement as to whether or not, in the opinion of each such Person,
  such condition or covenant has been met; provided, however, that with
  respect to matters of fact an Opinion of Counsel may rely on an Officers'
  Certificate or certificates of public officials.
 
  SECTION 12.6 Rules by Trustee, Paying Agent, Registrar.
 
  The Trustee may make reasonable rules for action by or at a meeting of
Securityholders. The Paying Agent or Registrar may make reasonable rules for
its functions.
 
  SECTION 12.7 Non-Business Days.
 
  If a payment date is not a Business Day at such place, payment may be made
at such place on the next succeeding day that is a Business Day, and no
interest shall accrue for the intervening period.
 
  SECTION 12.8 Governing Law.
 
  THIS INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED TO CONTRACTS
MADE AND PERFORMED WITHIN THE STATE OF NEW YORK.
 
                                      48
<PAGE>
 
  SECTION 12.9 No Adverse Interpretation of Other Agreements.
 
  This Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or any of its Subsidiaries. Any such indenture, loan
or debt agreement may not be used to interpret this Indenture.
 
  SECTION 12.10 No Recourse against Others.
 
  No direct or indirect stockholder, partner, employee, officer or director,
as such, past, present or future of the Company or any successor entity, shall
have any personal liability in respect of the obligations of the Company under
the Securities or this Indenture by reason of his or its status as such
stockholder, partner, employee, officer or director. Each Securityholder by
accepting a Security waives and releases all such liability. Such waiver and
release are part of the consideration for the issuance of the Securities.
 
  SECTION 12.11 Successors.
 
  All agreements of the Company in this Indenture and the Securities shall
bind its successor. All agreements of the Trustee in this Indenture shall bind
its successor.
 
  SECTION 12.12 Duplicate Originals.
 
  All parties may sign any number of copies or counterparts of this Indenture.
Each signed copy or counterpart shall be an original, but all of them together
shall represent the same agreement.
 
  SECTION 12.13 Severability.
 
  In case any one or more of the provisions in this Indenture or in the
Securities shall be held invalid, illegal or unenforceable, in any respect for
any reason, the validity, legality and enforceability of any such provision in
every other respect and of the remaining provisions shall not in any way be
affected or impaired thereby, it being intended that all of the provisions
hereof shall be enforceable to the full extent permitted by law.
 
  SECTION 12.14 Table of Contents, Headings, Etc.
 
  The Table of Contents, Cross-Reference Table and headings of the Articles
and the Sections of this Indenture have been inserted for convenience of
reference only, are not to be considered a part hereof and shall in no way
modify or restrict any of the terms or provisions hereof.
 
                                      49
<PAGE>
 
                                  SIGNATURES
 
  IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be duly
executed as of the date first written above.
 
                                           Laboratory Corporation of America
                                           Holdings
 
[Seal]
                                          By: _________________________________
                                            Name:
                                            Title:
Attest: _________________________
            Secretary
 
                                          First Union National Bank of North
                                          Carolina, as Trustee
 
[Seal]
                                          By: _________________________________
                                            Name:
                                            Title:
Attest: _________________________
 
                                      50
<PAGE>
 
                                                                      EXHIBIT A
 
                               FORM OF SECURITY
 
                  LABORATORY CORPORATION OF AMERICA HOLDINGS
 
                   % CONVERTIBLE SUBORDINATED NOTES DUE 2012
 
                                                                CUSIP No.
 
No.                                                                       $
 
  Laboratory Corporation of America Holdings, a Delaware corporation
(hereinafter called the "Company," which term includes any successors under
the Indenture hereinafter referred to), for value received, hereby promises to
pay to                 , or registered assigns, the principal sum of
Dollars, on                  , 2012.
 
  Interest Payment Dates:             ,             ,              and
           , commencing                       .
 
  Record Dates:             ,             ,              and            .
 
  Reference is made to the further provisions of this Security on the reverse
side, which will, for all purposes, have the same effect as if set forth at
this place.
 
  IN WITNESS WHEREOF, the Company has caused this Instrument to be duly
executed under its corporate seal.
 
Dated:
 
                                          Laboratory Corporation of America
                                           Holdings, a Delaware corporation
 
[Seal]
 
                                          By: _______________________________  
                                             Name:
                                             Title:
 
Attest: ___________________________  
               Secretary
 
                                      A-1
<PAGE>
 
                FORM OF TRUSTEE'S CERTIFICATE OF AUTHENTICATION
 
  This is one of the Securities described in the within-mentioned Indenture.
 
Dated:
 
_____________________________________     By: _________________________________
as Trustee                                   as Authenticating Agent
 
 
By: _________________________________     By: _________________________________
  Authorized Signatory                       Authorized Signatory
 
                                      A-2
<PAGE>
 
                  LABORATORY CORPORATION OF AMERICA HOLDINGS
 
                   % CONVERTIBLE SUBORDINATED NOTES DUE 2012
 
  [Unless and until it is exchanged in whole or in part for Securities in
definitive form, this Security may not be transferred except as a whole by the
Depositary to a nominee of the Depositary or by a nominee of the Depositary to
the Depositary or another nominee of the Depositary or by the Depositary or
any such nominee to a successor Depositary or a nominee of such successor
Depositary. Unless this certificate is presented by an authorized
representative of The Depository Trust Company (55 Water Street, New York, New
York) ("DTC"), to the issuer or its agent for registration of transfer,
exchange or payment, and any certificate issued is registered in the name of
Cede & Co. or such other name as may be requested by an authorized
representative of DTC (and any payment is made to Cede & Co. or such other
entity as may be requested by an authorized representative of DTC), ANY
TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY
PERSON IS WRONGFUL inasmuch as the registered owner hereof, Cede & Co., has an
interest herein.](2)
 
1. Interest.
 
  Laboratory Corporation of America Holdings, a Delaware corporation
(hereinafter called the "Company," which term includes any successors under
the Indenture hereinafter referred to), promises to pay interest on the
principal amount of this Security at the rate of   % per annum from        ,
until maturity. To the extent it is lawful, the Company promises to pay
interest on any interest payment due but unpaid on such principal amount at a
rate of   % per annum compounded quarterly.
 
  The Company will pay interest quarterly on         ,         ,         and
        of each year or, if any such day is not a Business Day, on the next
succeeding Business Day (each, an "Interest Payment Date"), commencing
       . Interest on the Securities will accrue from the most recent date to
which interest has been paid or, if no interest has been paid on the
Securities, from the date of issuance. Interest will be computed on the basis
of a 360-day year consisting of twelve 30-day months.
 
2. Method of Payment.
 
  The Company shall pay interest on the Securities (except defaulted interest)
to the Persons who are the registered Holders at the close of business on the
       ,       ,        or         immediately preceding the Interest Payment
Date. Holders must surrender Securities to a Paying Agent to collect principal
payments. Except as provided below, the Company shall pay principal and
interest in such coin or currency of the United States of America as at the
time of payment shall be legal tender for payment of public and private debts
("Cash"). The Securities will be payable as to principal, premium and interest
at the office or agency of the Company maintained for such purpose within the
Borough of Manhattan, the City and State of New York or, at the option of the
Company, payment of interest may be made by check mailed to the Holders at
their addresses set forth in the register of Holders, or at the option of the
Holder, in immediately available funds.
 
3. Paying Agent and Registrar.
 
  The Company may appoint and change any Paying Agent, Registrar or co-
Registrar without notice to the Holders. The Company or any of its
Subsidiaries may, subject to certain exceptions, act as Paying Agent,
Registrar or co-Registrar.
 
4. Indenture.
 
  The Company issued the Securities under an Indenture, dated as of       ,
1997 (the "Indenture"), between the Company and First Union National Bank of
North Carolina (the "Trustee," which term includes any successor Trustee under
the Indenture). Capitalized terms herein are used as defined in the
- --------
(2) This Paragraph should be included only if the Note is issued in global
    form.
 
                                      A-3
<PAGE>
 
Indenture unless otherwise defined herein. The terms of the Securities include
those stated in the Indenture and those made part of the Indenture by
reference to the Trust Indenture Act, as in effect on the date of the
Indenture. The Securities are subject to all such terms, and Holders of
Securities are referred to the Indenture and said Act for a statement of them.
 
  The indebtedness evidenced by the Securities is limited in aggregate
principal amount to $       and is, to the extent and in the manner provided
in the Indenture, expressly subordinate and subject in right of payment to the
prior payment in full of any Senior Indebtedness of the Company or provision
for such payment, whether outstanding at the date of the Indenture or
thereafter incurred, and each Holder of this Security, by his acceptance
hereof, agrees to, and shall be bound by, such provisions of the Indenture and
authorizes and directs the Trustee on his behalf to take such action as may be
necessary or appropriate to effectuate such subordination and appoints the
Trustee his attorney-in-fact for any and all such purposes.
 
5. Optional Redemption.
 
  The Securities are not redeemable at the Company's option prior to        ,
2000. Thereafter the Securities will be redeemable at the option of the
Company, in whole or in part, subject to the limitations, if any, imposed by
applicable law, at any time and from time to time, upon not less than 30 nor
more than 60 days' notice to each Holder of Securities to be redeemed, at the
following redemption prices (expressed as percentages of the principal amount)
if redeemed during the 12-month period commencing           of the years
indicated below, in each case (subject to the right of Holders of record on a
Record Date to receive interest due on an Interest Payment Date that is on or
prior to such Redemption Date) together with accrued and unpaid interest
thereon to the Redemption Date:
 
<TABLE>
<CAPTION>
         YEAR                                         PERCENTAGE
         ----                                         ----------
         <S>                                          <C>
         2000........................................
         2001........................................
         2002........................................
         2003........................................
         2004........................................
         2005........................................
         2006 and thereafter.........................
</TABLE>
 
  Any such redemption will comply with Article III of the Indenture.
 
6. Notice of Redemption.
 
  Notice of redemption will be sent by first class mail, at least 30 days and
not more than 60 days prior to the Redemption Date to the Holder of each
Security to be redeemed at such Holder's last address as then shown upon the
registry books of the Registrar. Securities may be redeemed in part in
multiples of $50 only.
 
  Except as set forth in the Indenture, from and after any Redemption Date, if
monies for the redemption of the Securities called for redemption shall have
been deposited with the Paying Agent on such Redemption Date and payment of
the Securities called for redemption is not otherwise prohibited, the
Securities called for redemption will cease to bear interest and the only
right of the Holders of such Securities will be to receive payment of the
Redemption Price.
 
7. Conversion at the Option of the Holder.
 
  Subject to the provisions of the Indenture, the Holder hereof has the right,
at his option, at any time prior to maturity, to convert the principal amount
of this Security (or any portion of the principal amount hereof which is an
integral multiple of $50) into fully paid and nonassessable shares of Common
Stock of
 
                                      A-4
<PAGE>
 
the Company at the conversion rate of         shares of Common Stock for each
$        principal amount of Securities (equivalent to a conversion price of
        per share, subject to such adjustment, if any, of the conversion rate
(and conversion price) and the securities or other property issuable upon
conversion as may be required by the provisions of the Indenture (except that
in case this Security (or any portion hereof) shall be called for redemption
before maturity, such right shall terminate on 5 p.m., New York City time, the
Business Day prior to the Redemption Date for this Security (or such portion
hereof), unless in any such case the Company shall default in payment due upon
such redemption), but only upon surrender of this Security for the purpose of
such conversion to the Company at the designated office or agency of the
Company in New York, New York or any other office or agency designated by the
Company for such purpose pursuant to the provisions of the Indenture,
accompanied by written notice that the Holder elects to convert this Security
or any portion thereof and specifying the name or names (with address or
addresses) in which a certificate or certificates evidencing shares of Common
Stock are to be issued and (if so required by the Company or the Trustee) by
an instrument or instruments of transfer in form satisfactory to the Company
and the Trustee duly executed by the registered Holder or his duly authorized
legal representative and transfer tax stamps or funds therefor, if required
pursuant to the provisions of the Indenture and, in case such surrender shall
be made during the period from the close of business on any Regular Record
Date to the opening of business on the next succeeding Interest Payment Date
(unless this Security or the portion thereof being converted has been called
for redemption on a Redemption Date during such period), also accompanied by
payment in funds acceptable to the Company of an amount equal to the interest
payable on such Interest Payment Date on the principal amount of this Security
then being converted.
 
  Subject to the aforesaid requirement with respect to payment in the event of
conversion after the close of business on a Regular Record Date, no adjustment
is to be made on conversion for interest accrued hereon or for dividends on
shares of Common Stock issued on conversion. No fractional shares are issuable
upon any conversion, but in lieu thereof the Company shall pay therefor in
cash as provided in the Indenture.
 
8. Denominations; Transfer; Exchange.
 
  The Securities are in registered form, without coupons, in denominations of
$50 and integral multiples of $50. A Holder may register the transfer of, or
exchange Securities in accordance with, the Indenture. The Registrar may
require a Holder, among other things, to furnish appropriate endorsements and
transfer documents and to pay any taxes and fees required by law or permitted
by the Indenture. As provided in the Indenture, the Registrar need not
register the transfer of or exchange any Securities selected for redemption.
 
9. Persons Deemed Owners.
 
  The registered Holder of a Security may be treated as the owner of it for
all purposes.
 
10. Unclaimed Money.
 
  If money for the payment of principal or interest remains unclaimed for two
years, the Trustee and the Paying Agent(s) will pay the money back to the
Company at its written request. After that, all liability of the Trustee and
such Paying Agent(s) with respect to such money shall cease.
 
11. Discharge Prior to Redemption or Maturity.
 
  Except as set forth in the Indenture, if the Company irrevocably deposits
with the Trustee, in trust, for the benefit of the Holders, Cash, U.S.
Government Obligations or a combination thereof, in such amounts as will be
sufficient in the opinion of a nationally recognized firm of independent
public accountants, to pay the principal of, premium, if any, and interest on
the Securities to redemption or maturity and comply with the other provisions
of the Indenture relating thereto, the Company will be discharged from certain
provisions of the Indenture and the Securities.
 
                                      A-5
<PAGE>
 
12. Amendment; Supplement; Waiver.
 
  Subject to certain exceptions, the Indenture or the Securities may be
amended or supplemented with the written consent of the Holders of at least a
majority in aggregate principal amount of the Securities then outstanding, and
any existing Default or Event of Default or compliance with any provision may
be waived with the consent of the Holders of a majority in aggregate principal
amount of the Securities then outstanding. Without notice to or consent of any
Holder, the parties thereto may under certain circumstances amend or
supplement the Indenture or the Securities to, among other things, cure any
ambiguity, defect or inconsistency, or make any other change that does not
adversely affect the rights of any Holder of a Security in any material
respect.
 
13. Successors.
 
  When a successor assumes all the obligations of its predecessor under the
Securities and the Indenture, the predecessor will be released from those
obligations.
 
14. Defaults and Remedies.
 
  If an Event of Default occurs and is continuing (other than an Event of
Default relating to certain events of bankruptcy, insolvency or reorganization
of the Company), then in every such case, unless the principal of all of the
securities shall have already become due and payable, either the Trustee or
the Holders of 25% in aggregate principal amount of Securities then
outstanding may declare all the Securities to be due and payable immediately
in the manner and with the effect provided in the Indenture. Holders of
Securities may not enforce the Indenture or the Securities except as provided
in the Indenture. The Trustee may require indemnity satisfactory to it before
it enforces the Indenture or the Securities. Subject to certain limitations,
Holders of a majority in aggregate principal amount of the Securities then
outstanding may direct the Trustee in its exercise of any trust or power. The
Trustee may withhold from Holders of Securities notice of any continuing
Default or Event of Default (except a Default in payment of principal or
interest), if it determines that withholding notice is in their interest.
 
15. Trustee or Agent Dealings with Company.
 
  The Trustee and each Agent under the Indenture, in its individual or any
other capacity, may make loans to, accept deposits from, and perform services
for the Company or its Affiliates, and may otherwise deal with the Company or
its Affiliates as if it were not the Trustee and such Agent.
 
16. No Recourse Against Others.
 
  No direct or indirect stockholder, partner, employee, officer or director,
as such, past, present or future, of the Company or any successor entity shall
have any personal liability in respect of the obligations of the Company under
the Securities or the Indenture by reason of his or its status as such
stockholder, partner, employee, officer or director. Each Holder of a Security
by accepting a Security waives and releases all such liability. The waiver and
release are part of the consideration for the issuance of the Securities.
 
17. Authentication.
 
  This Security shall not be valid until the Trustee or authenticating agent
signs the certificate of authentication on the other side of this Security.
 
18. Abbreviations and Defined Terms.
 
  Customary abbreviations may be used in the name of a Holder of a Security or
an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the
entireties), JT TEN (= joint tenants with right of survivorship and not as
tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to Minors
Act).
 
                                      A-6
<PAGE>
 
  All terms which are used in this Security which are defined in the Indenture
shall have the meanings assigned to them in the Indenture.
 
19. CUSIP Numbers.
 
  Pursuant to a recommendation promulgated by the Committee on Uniform
Security Identification Procedures, the Company will cause CUSIP numbers to be
printed on the Securities as a convenience to the Holders of the Securities.
No representation is made as to the accuracy of such numbers as printed on the
Securities and reliance may be placed only on the other identification numbers
printed hereon.
 
20. Governing Law.
 
  THE INDENTURE AND THE SECURITIES SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, AS APPLIED TO CONTRACTS
MADE AND PERFORMED WITHIN THE STATE OF NEW YORK.
 
                                      A-7
<PAGE>
 
                             [FORM OF] ASSIGNMENT
 
                        I or we assign this Security to
 
- -------------------------------------------------------------------------------
 
- -------------------------------------------------------------------------------
 
- -------------------------------------------------------------------------------
            (Print or type name, address and zip code of assignee)
 
  Please insert Social Security or other identifying number of assignee
 
- -------------------------------------
 
and irrevocably appoint            agent to transfer this Security on the
books of the Company. The agent may substitute another to act for him.
 
Dated:            Signed:
 
- -------------------------------------------------------------------------------
 
                       (Sign exactly as name appears on
                       the other side of this Security)
 
                             Signature Guarantee*
 
- --------
 
* NOTICE: The Signature must be guaranteed by an Institution which is a member
 of one of the following recognized Signature Guaranty Programs: (i) The
 Securities Transfer Agent Medallion Program (Stamp); (ii) The New York Stock
 Exchange Medallion Program (MSP); or (iii) in such other guarantee program
 acceptable to the Trustee.
 
 
                                      A-8

<PAGE>
 
                                                                    EXHIBIT 4.6
 
 
                      AMENDMENT TO STOCKHOLDER AGREEMENT
 
  AMENDMENT TO STOCKHOLDER AGREEMENT, dated as of    , 1997 between Roche
Holdings, Inc. (the "Investor") and Laboratory Corporation of America Holdings
(the "Company").
 
  WHEREAS, the parties hereto, HLR Holdings Inc. and Hoffmann-La Roche Inc.
have entered into a Stockholder Agreement (the "Stockholder Agreement") dated
as of April 28, 1995;
 
  WHEREAS, the parties hereto desire that the definition of "Registrable
Securities" in Section 1.1 of the Stockholder Agreement include the Company's
common stock, par value $0.01 per share, issuable upon conversion of the
Company's  % Series B Convertible Pay-in-Kind Preferred Stock held by the
Investor;
 
  WHEREAS, the parties hereto desire to amend the Stockholder Agreement
pursuant to Section 9.2 thereof to give effect to the foregoing;
 
  NOW, THEREFORE, in consideration of the mutual agreements and undertakings
of the Investor and the Company set forth herein, the Investor and the Company
agree as follows:
 
  1. Amendment. (a) The definition of "Registrable Securities" contained in
Section 1.1 of the Stockholder Agreement is hereby deleted and replaced in its
entirety by the following:
 
  "Registrable Securities" means (a) Equity Securities (including any Common
Stock or other Voting Stock issuable upon any conversion or exercise of any
Equity Securities which are convertible securities) held by the Investor Group
which are Restricted Securities until (i) a registration statement covering
such securities has been declared effective by the SEC and such securities
have been disposed of pursuant to such effective registration statement, (ii)
such securities are sold under circumstances in which all of the applicable
conditions of Rule 144 (or any similar provisions then in force) are met, or
such securities may be sold pursuant to Rule 144(k) or (iii) such securities
are otherwise transferred, the Company has delivered a new certificate or
other evidence of ownership for such securities not bearing a legend
restricting transfer of such securities and such securities may be resold
without subsequent registration under the Securities Act; and (b) any Common
Stock issued upon conversion of the Company's  % Series B Convertible Pay-in-
Kind Preferred Stock, par value $0.10 per share.
 
  (b) The Stockholder Agreement, as hereby amended, shall remain in full force
and effect.
 
  (c) All references in the Stockholder Agreement to the definition of
"Registrable Securities" shall be deemed to mean the definition of
"Registrable Securities" as set forth above.
 
  2. Governing Law. This Amendment shall be governed by, and construed in
accordance with, the laws of the State of Delaware applicable to contracts
executed and to be fully performed in that State. All actions and proceedings
arising out of or relating to this Amendment shall be brought by the parties
and heard and determined only in a Delaware state court or a federal court
sitting in that State and the parties hereto consent to jurisdiction before
and waive any objections of venue to the Delaware Chancery Court.
 
  3. Counterparts; Effectiveness. This Amendment may be signed in any number
of counterparts, each of which shall be an original, with the same effect as
if the signatures thereto and hereto were upon the same instrument. This
Amendment shall become effective when the Company shall have executed
counterparts hereof and received counterparts hereof signed by all of the
parties hereto.
 
 
                                       1
<PAGE>
 
  IN WITNESS, WHEREOF, the parties hereto have caused this Amendment to be
duly executed as of the day and year first above written.
 
                                     Roche Holdings, Inc.
 
                                     By:
                                        ---------------------------------------
                                         Name:
                                         Title:
 
                                     Laboratory Corporation of America
                                     Holdings
 
                                     By:
                                        ---------------------------------------
                                         Name:
                                         Title:
 
                                       2

<PAGE>
 
                                                                    EXHIBIT 5.1
 
                      [DAVIS POLK & WARDWELL LETTERHEAD]
 
                                 212-450-4000
 
                                          May 6, 1997
 
Laboratory Corporation of America Holdings
358 South Main Street
Burlington, North Carolina 27215
 
Ladies and Gentlemen:
 
  We have acted as counsel to Laboratory Corporation of America Holdings, a
Delaware corporation (the "Company") in connection with the Company's
Registration Statement on Form S-3 (the "Registration Statement") filed with
the Securities and Exchange Commission pursuant to the Securities Act of 1933,
as amended, for the registration of the Company's (i) transferable
subscription rights (the "Rights"); (ii) Series A Convertible Exchangeable
Preferred Stock, par value $0.10 per share (the "Series A Exchangeable
Preferred Stock") and Series B Convertible Pay-in-Kind Preferred Stock, par
value $0.10 per share, with an aggregate liquidation preference of
$828,200,000 (the "Series B PIK Preferred Stock" and, together with the Series
A Exchangeable Preferred Stock, the "Preferred Stock"); (iii) $250,562,450
aggregate principal amount of convertible subordinated notes due 2012 (the
"Notes") which may be issued in exchange for the Preferred Stock; and (iv)
such currently indeterminate number of shares of Common Stock, par value $0.01
per share (the "Common Stock") as may be issuable upon conversion of the
Preferred Stock and the Notes. The Notes are to be issued pursuant to an
Indenture (the "Indenture") between the Company and First Union National Bank
of North Carolina, as Trustee (the "Trustee").
 
  We have examined originals or copies, certified or otherwise identified to
our satisfaction, of such documents, corporate records, certificates of public
officials and other instruments as we have deemed necessary or advisable for
the purposes of rendering this opinion.
 
  On the basis of the foregoing, we are of the opinion that:
 
  (i) The Rights when duly authorized and issued in accordance with the terms
      of the Rights Offering (as defined in the Registration Statement) will
      be validly issued;
 
  (ii) Upon the designation of the relative rights, preferences and
       limitations of the Preferred Stock by the Board of Directors and the
       proper filing with the Secretary of State of the State of Delaware of
       the Certificate of Designation relating to each series of the
       Preferred Stock, when the Preferred Stock has been duly authorized,
       issued and paid for in accordance with the terms of the Rights
       Offering or issued in respect of the dividend requirements of the
       Series B PIK Preferred Stock, as the case may be, the Preferred Stock
       will be validly issued, fully-paid and non-assessable, and the
       issuance of such Preferred Stock will not be subject to any preemptive
       rights;
 
  (iii) When the Indenture to be entered into in connection with the issuance
        of the Notes has been duly authorized, executed and delivered by the
        Trustee and the Company and the Notes have been duly authorized,
        executed, authenticated, issued and delivered in exchange for the
        Series A Exchangeable Preferred Stock in accordance with the terms of
        the Series A Exchangeable Preferred Stock and the Indenture, the
        Notes will constitute valid and binding obligations of the Company
        enforceable in accordance with their terms, except as (a) the
        enforceability thereof may be limited by bankruptcy, insolvency,
        reorganization, fraudulent transfer, moratorium or similar laws now
        or hereinafter in effect relating to or affecting the enforcement of
        creditors' rights generally and (b) the availability of equitable
        remedies may be limited by equitable principles of general
        applicability (regardless of whether considered in a proceeding at
        law or in equity); and
<PAGE>
 
    Laboratory
  Corporation of
 America Holdings
                                                                    May 6, 1997
  (iv) When any shares of Common Stock are issued upon conversion of any
       shares of Preferred Stock or any Notes, as the case may be, such
       shares of Common Stock will be duly authorized, validly issued, fully-
       paid and non-assessable and the issuance of such Common Stock will not
       be subject to any preemptive rights.
 
  In connection with the opinions expressed above, we have assumed that, at or
prior to the time of the delivery of any such security, (i) the Board of
Directors shall have duly established the terms of such security and duly
authorized the issuance and sale of such security and such authorization shall
not have been modified or rescinded and that prior to the issuance of Series B
PIK Preferred Stock in the form of dividends, the Board of Directors and
stockholders of the Company shall have approved an increase in the authorized
share capital of the Company sufficient to authorize such issuance and all
required filings with the Secretary of State of Delaware in connection
therewith shall have been made; (ii) in the case of the Common Stock, the
Board of Directors and stockholders of the Company shall have approved an
increase in the authorized share capital of the Company sufficient to enable
all Preferred Stock and/or Notes to be converted and all required filings with
the Secretary of State of Delaware in connection therewith shall have been
made; and (iii) there shall not have occurred any change in law affecting the
validity or enforceability of such security. We have also assumed that neither
the issuance and delivery of any security to be issued and delivered
subsequent to the date hereof, nor the compliance by the Company with the
terms of such security will violate any applicable law or will result in a
violation of any provision of any instrument or agreement then binding upon
the Company, or any restriction imposed by any court or governmental body
having jurisdiction over the Company.
 
  We are members of the Bar of the State of New York and the foregoing opinion
is limited to the laws of the State of New York, the federal laws of the
United States of America and the General Corporation Law of the State of
Delaware.
 
  We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement. In addition, we consent to the reference to us under
the caption "Legal Matters" in the prospectus.
 
  This opinion is rendered to you solely in connection with the above matter.
This opinion may not be relied upon by you for any other purpose or relied
upon by or furnished to any other person without our prior written consent.
 
                                          Very truly yours,
 
                                          /s/  Davis Polk & Wardwell
 
                                       2

<PAGE>
 
                                                                  
                                                               EXHIBIT 8.1     
                       
                    [DAVIS POLK & WARDWELL LETTERHEAD]     
                                  
                               212-450-4606     
                                             
                                          May 6, 1997     
   
Laboratory Corporation of America Holdings     
   
358 South Main Street     
   
Burlington, N.C. 27215     
   
Dear Ladies and Gentlemen:     
   
  We are acting as counsel for Laboratory Corporation of America Holdings, a
Delaware corporation, (the "Company"), in connection with the Registration
Statement on Form S-3, registration no. 333-22427, (including any amendments
thereto, the "Registration Statement"), filed by the Company with the
Securities and Exchange Commission under the Securities Act of 1933, as
amended, for the registration of the Company's (i) transferable subscription
rights (the "Rights"); (ii) Series A Convertible Exchangeable Preferred Stock,
par value $0.10 per share (the "Series A Exchangeable Preferred Stock") and
Series B Convertible Pay-in-Kind Preferred Stock, par value $0.10 per share,
with an aggregate liquidation preference of $828,200,000 (the "Series B PIK
Preferred Stock" and, together with the Series A Exchangeable Preferred Stock,
the "Preferred Stock"); (iii) $250,562,450 aggregate principal amount of
convertible subordinated notes due 2012 (the "Notes") which may be issued in
exchange for the Preferred Stock; and (iv) such currently indeterminate number
of shares of Common Stock, par value $0.01 per share (the "Common Stock") as
may be issuable upon conversion of the Preferred Stock and the Notes.     
   
  We have examined drafts of the Registration Statement, as well as originals
or copies, certified or otherwise identified to our satisfaction, of such
documents, corporate records, certificates of public officials and other
instruments as we have deemed necessary or advisable for purposes of this
opinion.     
   
  We hereby confirm our opinion contained under the heading "Certain Federal
Income Tax Consequences" in the Prospectus contained in the Registration
Statement.     
   
  We are members of the Bar of the State of New York and the opinion set forth
therein is limited to the laws of the State of New York and the federal laws
of the United States of America.     
   
  We hereby consent to the filing of this opinion as an exhibit to the
Registration Statement. We also consent to the reference to us in the
Prospectus contained in the Registration Statement.     
                                             
                                          Very truly yours,     
                                             
                                          /s/ Davis Polk & Wardwell     

<PAGE>
 
                                                                  
                                                               EXHIBIT 12.1     
                   
                LABORATORY CORPORATION OF AMERICA HOLDINGS     
              
           STATEMENT RE: COMPUTATION OF RATIO OF EARNINGS (LOSS)     
                
             TO COMBINED FIXED CHARGES AND PREFERRED DIVIDENDS     
                              
                           (DOLLARS IN MILLIONS)     
<TABLE>   
<CAPTION>
                                                                       PROFORMA
                                                                      YEAR ENDED
                                        YEAR ENDED DECEMBER 31,        DECEMBER
                                   ---------------------------------     31,
                                   1992   1993   1994  1995   1996       1996
                                   ----- ------ ------ ----- -------  ----------
<S>                                <C>   <C>    <C>    <C>   <C>      <C>
Earnings (loss):
 Earnings (loss before provision
  for income taxes and
  extraordinary item.............. $62.1 $191.1 $ 55.4 $ 3.1 $(188.3)  $(176.0)
Add: Fixed Charges................
 Interest expense (gross).........   4.2   10.9   34.5  65.5    71.7      59.4
 Interest factor in rents.........   9.0   10.0   11.5  20.1    23.5      23.5
                                   ----- ------ ------ ----- -------   -------
 Earnings (loss) as adjusted...... $75.3 $212.0 $101.4 $88.7 $ (93.1)  $ (93.1)
                                   ===== ====== ====== ===== =======   =======
 Preferred dividend requirements.. $ --  $  --  $  --  $ --  $   --    $ 103.4
 Ratio of earnings (loss) before
  provision for income taxes to
  net earnings (loss).............   --     --     --    --      --        120%
                                   ----- ------ ------ ----- -------   -------
 Preferred dividend factor on a
  pre-tax basis...................   --     --     --    --      --      124.5
 Fixed Charges
  Interest expense (gross)........   4.2   10.9   34.5  65.5    71.7      59.4
  Interest factor in rents........   9.0   10.0   11.5  20.1    23.5      23.5
                                   ----- ------ ------ ----- -------   -------
   Combined fixed charges and
    preferred dividends...........  13.2   20.9   46.0  85.6    95.2     207.4
                                   ===== ====== ====== ===== =======   =======
Ratio of earnings to combined
 fixed charges and preferred
 dividends........................  5.71  10.16   2.20  1.04      NM        NM
Amount by which earnings are
 insufficient to cover combined
 fixed charges and preferred
 dividends........................                           $(188.3)  $(300.5)
                                                             =======   =======
</TABLE>    

<PAGE>
 
                                                                   EXHIBIT 23.1
 
                         INDEPENDENT AUDITORS' CONSENT
 
The Board of Directors
Laboratory Corporation of America Holdings:
 
  We consent to the use of our reports included herein and incorporated herein
by reference and to the reference to our firm under the heading "Experts" in
the prospectus.
 
                                          /s/ KPMG Peat Marwick LLP
 
Raleigh, North Carolina
May 2, 1997

<PAGE>
 
                                                                    EXHIBIT 25.1
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                                    FORM T-1
 
                   STATEMENT OF ELIGIBILITY AND QUALIFICATION
                   UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE
 
                               ----------------
 
                  FIRST UNION NATIONAL BANK OF NORTH CAROLINA
              (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)
 
     UNITED STATES NATIONAL BANK                       57-0405803
                                          (I.R.S. EMPLOYER IDENTIFICATION NO.)
  (STATE OF INCORPORATION IF NOT A
           NATIONAL BANK)
 
 
 
                                                          28288
       TWO FIRST UNION CENTER                          (ZIP CODE)
      CHARLOTTE, NORTH CAROLINA
   (ADDRESS OF PRINCIPAL EXECUTIVE
              OFFICES)
 
                  FIRST UNION NATIONAL BANK OF NORTH CAROLINA
  (NAME, ADDRESS AND TELEPHONE NUMBER, INCLUDING AREA CODE, OF TRUSTEE'S AGENT
                                  FOR SERVICE)
 
                   LABORATORY CORPORATION OF AMERICA HOLDINGS
              (EXACT NAME OF OBLIGORS AS SPECIFIED IN ITS CHARTER)
 
                                    DELAWARE
         (STATE OR OTHER JURISDICTION OF INCORPORATION OR ORGANIZATION)
 
                                   13-3757370
                      (I.R.S. EMPLOYER IDENTIFICATION NO.)
 
                               BRADFORD T. SMITH
                   EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL,
                   CORPORATE COMPLIANCE OFFICER AND SECRETARY
                   LABORATORY CORPORATION OF AMERICA HOLDINGS
                             358 SOUTH MAIN STREET
                        BURLINGTON, NORTH CAROLINA 27215
                                 (910) 229-1127
         (ADDRESS, INCLUDING ZIP CODE, OF PRINCIPAL EXECUTIVE OFFICES)
 
                               10,000,000 Shares
                   Laboratory Corporation of America Holdings
               % Series A Convertible Exchangeable Preferred Stock
                                       or
                % Series B Convertible Pay-in-Kind Preferred Stock
                      (TITLE OF THE INDENTURE SECURITIES)
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
 1.  GENERAL INFORMATION. FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:
 
  (A) NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISING AUTHORITY TO WHICH IT
  IS SUBJECT
 
- -------------------------------------------------------------------------------
                   NAME                                    ADDRESS
 
- -------------------------------------------------------------------------------
  Board of Governors of the Federal Reserve
  System
  Comptroller of the Currency                          Washington, D.C.
  Securities and Exchange Commission                   Washington, D.C.
  Division of Market Regulations                       Washington, D.C.
  Federal Deposit Insurance Corporation                550 17th Street, N.W.
                                                       Washington, D.C. 20549
 
  (B) WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.
 
    The trustee is authorized to exercise corporate trust powers.
 
 2.  AFFILIATIONS WITH OBLIGOR AND UNDERWRITERS. IF THE OBLIGOR OR ANY
   UNDERWRITER FOR THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH
   SUCH AFFILIATION.
 
    None.
 
    (See Note 1 on Page 9.)
 
 3.  VOTING SECURITIES OF THE TRUSTEE. FURNISH THE FOLLOWING INFORMATION AS TO
   EACH CLASS OF VOTING SECURITIES OF THE TRUSTEE:
 
                             AS OF MARCH 31, 1997
 
- -------------------------------------------------------------------------------
                  COL. A                                   COL. B
 
- -------------------------------------------------------------------------------
              TITLE OF CLASS                         AMOUNT OUTSTANDING
 
- -------------------------------------------------------------------------------
 
    Common Stock, par value $3.33 1/3                280,000,000 shares
 
 4.  TRUSTEESHIPS UNDER OTHER INDENTURES. IF THE TRUSTEE IS A TRUSTEE UNDER
   ANOTHER INDENTURE UNDER WHICH ANY OTHER SECURITIES, OR CERTIFICATES OF
   INTEREST OR PARTICIPATION IN ANY OTHER SECURITIES, OF THE OBLIGOR ARE
   OUTSTANDING, FURNISH THE FOLLOWING INFORMATION:
 
(A) TITLE OF THE SECURITIES OUTSTANDING UNDER EACH SUCH OTHER INDENTURE.
 
    Not applicable.
 
   (B) A BRIEF STATEMENT OF THE FACTS RELIED UPON AS A BASIS FOR THE CLAIM
   THAT NO CONFLICTING INTEREST WITHIN THE MEANING OF SECTION 310(B)(1) OF THE
   TRUST INDENTURE ACT OF 1939, AS AMENDED, ARISES AS A RESULT OF THE
   TRUSTEESHIP UNDER ANY SUCH OTHER INDENTURE, INCLUDING A STATEMENT AS TO HOW
   THE INDENTURE SECURITIES WILL RANK AS COMPARED WITH THE SECURITIES ISSUED
   UNDER SUCH OTHER INDENTURE.
 
    Not applicable.
 
 5.  INTERLOCKING DIRECTORATES AND SIMILAR RELATIONSHIPS WITH THE OBLIGOR OR
   UNDERWRITERS. IF THE TRUSTEE OR ANY OF THE DIRECTORS OR EXECUTIVE OFFICERS
   OF THE TRUSTEE IS A DIRECTOR, OFFICER, PARTNER, EMPLOYEE, APPOINTEE, OR
   REPRESENTATIVE OF THE OBLIGOR OR OF ANY UNDERWRITER FOR THE OBLIGOR,
   IDENTIFY EACH SUCH PERSON HAVING ANY SUCH CONNECTION AND STATE THE NATURE
   OF EACH SUCH CONNECTION:
 
  None.
 
                                       2
<PAGE>
 
 6.  VOTING SECURITIES OF THE TRUSTEE OWNED BY THE OBLIGOR OR ITS
   OFFICIALS. FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF
   THE TRUSTEE OWNED BENEFICIALLY BY THE OBLIGOR AND EACH DIRECTOR, PARTNER
   AND EXECUTIVE OFFICER OF THE OBLIGOR:
 
                             AS OF MARCH 31, 1997
 
- -------------------------------------------------------------------------------
      COL. A             COL. B              COL. C              COL. D
- -------------------------------------------------------------------------------
     NAME OF OWNER     TITLE OF CLASS       AMOUNT OWNED      PERCENTAGE OF
                                          BENEFICIALLY      VOTING SECURITIES
                                                             REPRESENTED BY
                                                             AMOUNT GIVEN IN
                                                                 COL. C
- -------------------------------------------------------------------------------
 
    The amount of voting securities of First Union Corporation, the parent of
  the trustee, owned beneficially by the obligor and its directors and
  executive officers, taken as a group, does not exceed 1 percent of the
  outstanding voting securities of First Union Corporation.
 
    (See Note 1 on Page 9.)
 
 7.  VOTING SECURITIES OF THE TRUSTEE OWNED BY UNDERWRITERS OR THEIR
   OFFICIALS. FURNISH THE FOLLOWING INFORMATION AS TO THE VOTING SECURITIES OF
   THE TRUSTEE OWNED BENEFICIALLY BY EACH UNDERWRITER FOR THE OBLIGOR AND EACH
   DIRECTOR, PARTNER, AND EXECUTIVE OFFICER OF EACH SUCH UNDERWRITER:
 
                             AS OF MARCH 31, 1997
 
- -------------------------------------------------------------------------------
      COL. A             COL. B              COL. C              COL. D
- -------------------------------------------------------------------------------
     NAME OF OWNER     TITLE OF CLASS       AMOUNT OWNED      PERCENTAGE OF
                                          BENEFICIALLY      VOTING SECURITIES
                                                             REPRESENTED BY
                                                             AMOUNT GIVEN IN
                                                                 COL. C
- -------------------------------------------------------------------------------
 
    The amount of voting securities of First Union Corporation, the parent of
  the trustee, owned beneficially by any underwriter for the obligor and its
  directors, partners, and executive officers, taken as a group, does not
  exceed 1 percent of the outstanding voting securities of First Union
  Corporation.
 
     (See Note 1 on Page 9.)
 
 8. SECURITIES OF THE OBLIGOR OWNED OR HELD BY THE TRUSTEE. FURNISH THE
    FOLLOWING INFORMATION AS TO SECURITIES OF THE OBLIGOR OWNED BENEFICIALLY
    OR HELD AS COLLATERAL SECURITY FOR OBLIGATIONS IN DEFAULT BY THE TRUSTEE:
 
                             AS OF MARCH 31, 1997
 
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
      COL. A                COL. B                 COL. C                 COL. D
- ---------------------------------------------------------------------------------------
<S>                 <C>                    <C>                    <C>
                                                AMOUNT OWNED
                                            BENEFICIALLY OR HELD
                         WHETHER THE           AS COLLATERAL
                    SECURITIES ARE VOTING       SECURITY FOR         PERCENT OF CLASS
                        OR NON-VOTING          OBLIGATIONS IN     REPRESENTED BY AMOUNT
  TITLE OF CLASS          SECURITIES              DEFAULT            GIVEN IN COL. C
</TABLE>
- -------------------------------------------------------------------------------
 
    The trustee does not own beneficially or hold as collateral security for
  obligations in default any securities of any class of the obligor in excess
  of 1 percent of the outstanding securities of such class.
 
    (See Note 1 on Page 9.)
 
                                       3
<PAGE>
 
 9. SECURITIES OF UNDERWRITERS OWNED OR HELD BY THE TRUSTEE. IF THE TRUSTEE
    OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR OBLIGATIONS IN
    DEFAULT ANY SECURITIES OF AN UNDERWRITER FOR THE OBLIGOR, FURNISH THE
    FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES OF SUCH UNDERWRITER
    ANY OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE:
 
                             AS OF MARCH 31, 1997
 
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
      COL. A                COL. B                 COL. C                 COL. D
- ---------------------------------------------------------------------------------------
<S>                 <C>                    <C>                    <C>
                                                AMOUNT OWNED
                                            BENEFICIALLY HELD AS
                                            COLLATERAL SECURITY      PERCENT OF CLASS
NAME OF ISSUER AND                           FOR OBLIGATIONS IN   REPRESENTED BY AMOUNT
  TITLE OF CLASS    AMOUNT OUTSTANDING       DEFAULT BY TRUSTEE      GIVEN IN COL. C
</TABLE>
- -------------------------------------------------------------------------------
 
    The trustee does not own beneficially or hold as collateral security for
  obligations in default any securities of any class of an underwriter for
  the obligor in excess of 1 percent of the outstanding securities of such
  class.
 
    (See Note 1 on Page 9.)
 
10.  OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF VOTING SECURITIES OF CERTAIN
   AFFILIATES OR SECURITY HOLDERS OF THE OBLIGOR. IF THE TRUSTEE OWNS
   BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR OBLIGATIONS IN DEFAULT
   VOTING SECURITIES OF A PERSON WHO, TO THE KNOWLEDGE OF THE TRUSTEE (1) OWNS
   10 PERCENT OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR OR (2) IS AN
   AFFILIATE, OTHER THAN A SUBSIDIARY, OF THE OBLIGOR, FURNISH THE FOLLOWING
   INFORMATION AS TO THE VOTING SECURITIES OF SUCH PERSON:
 
<TABLE>
<CAPTION>
                             AS OF
- -------------------------------------------------------------------------------
COL. A        COL. B             COL. C                   COL. D
- -------------------------------------------------------------------------------
<S>     <C>                <C>                 <C>
 NAME
  OF                          AMOUNT OWNED
ISSUER                       BENEFICIALLY OR
 AND                       HELD AS COLLATERAL
TITLE                         SECURITY FOR
  OF                         OBLIGATIONS IN        PERCENT OF CLASS REPRESENTED
CLASS   AMOUNT OUTSTANDING DEFAULT BY TRUSTEE       BY AMOUNT GIVEN IN COL. C
- -------------------------------------------------------------------------------
</TABLE>
 
    The trustee does not own beneficially or hold as collateral security for
  obligations in default any voting securities of any class of a person who,
  to the knowledge of the trustee (1) owns 10 percent or more of the voting
  securities of the obligor or (2) is an affiliate, other than a subsidiary,
  of the obligor, in excess of 1 percent of the outstanding voting securities
  of such class.
 
    (See Note 1 on Page 9.)
 
11.  OWNERSHIP OR HOLDINGS BY THE TRUSTEE OF ANY SECURITIES OF A PERSON OWNING
   50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR. IF THE TRUSTEE
   OWNS BENEFICIALLY OR HOLDS AS COLLATERAL SECURITY FOR OBLIGATIONS IN
   DEFAULT ANY SECURITIES OF A PERSON WHO, TO THE KNOWLEDGE OF THE TRUSTEE,
   OWNS 50 PERCENT OR MORE OF THE VOTING SECURITIES OF THE OBLIGOR, FURNISH
   THE FOLLOWING INFORMATION AS TO EACH CLASS OF SECURITIES OF SUCH PERSON ANY
   OF WHICH ARE SO OWNED OR HELD BY THE TRUSTEE.
 
                             AS OF MARCH 31, 1997
 
<TABLE>
- -------------------------------------------------------------------------------
<CAPTION>
COL. A        COL. B             COL. C                   COL. D
- -------------------------------------------------------------------------------
<S>     <C>                <C>                 <C>
 NAME
  OF                          AMOUNT OWNED
ISSUER                       BENEFICIALLY OR
 AND                       HELD AS COLLATERAL
TITLE                         SECURITY FOR
  OF                         OBLIGATIONS IN        PERCENT OF CLASS REPRESENTED
CLASS   AMOUNT OUTSTANDING DEFAULT BY TRUSTEE       BY AMOUNT GIVEN IN COL. C
- -------------------------------------------------------------------------------
</TABLE>
 
    The trustee does not own beneficially or hold as collateral security for
  obligations in default any securities of any class of a person who, to the
  knowledge of the trustee, owns 50 percent or more of the voting securities
  of the obligor, in excess of 1 percent of the outstanding securities of
  such class.
 
    (See Note 1 on Page 9.)
 
                                       4
<PAGE>
 
12.  INDEBTEDNESS OF THE OBLIGOR TO THE TRUSTEE.
 
    Except as noted in the instructions, if the obligor is indebted to the
  trustee, furnish the following information:
 
13.  DEFAULTS BY THE OBLIGOR.
 
  (A) STATE WHETHER THERE IS OR HAS BEEN A DEFAULT WITH RESPECT TO THE
      SECURITIES UNDER THIS INDENTURE. EXPLAIN THE NATURE OF ANY SUCH
      DEFAULT.
 
    There has been no default with respect to the securities under this
       Indenture.
 
  (B) IF THE TRUSTEE IS A TRUSTEE UNDER ANOTHER INDENTURE UNDER WHICH ANY
      OTHER SECURITIES, OR CERTIFICATES OF INTEREST OR PARTICIPATION IN ANY
      OTHER SECURITIES, OF THE OBLIGOR ARE OUTSTANDING, OR IS TRUSTEE FOR
      MORE THAN ONE OUTSTANDING SERIES OF SECURITIES UNDER THE INDENTURE,
      STATE WHETHER THERE HAS BEEN A DEFAULT UNDER ANY SUCH INDENTURE OR
      SERIES, IDENTIFY THE INDENTURE OR SERIES AFFECTED, AND EXPLAIN THE
      NATURE OF ANY SUCH DEFAULT.
 
    The trustee is not a trustee under another indenture for the obligor.
 
14.  AFFILIATIONS WITH THE UNDERWRITERS. IF ANY UNDERWRITER IS AN AFFILIATE OF
   THE TRUSTEE, DESCRIBE EACH SUCH AFFILIATION.
 
    Not Applicable.
 
15.  FOREIGN TRUSTEE. IDENTIFY THE ORDER OR RULE PURSUANT TO WHICH THE FOREIGN
   TRUSTEE IS AUTHORIZED TO ACT AS SOLE TRUSTEE UNDER INDENTURES QUALIFIED OR
   TO BE QUALIFIED UNDER THE ACT.
 
    Trustee is a national banking association.
 
16.  LIST OF EXHIBITS.
 
  ALL EXHIBITS IDENTIFIED BELOW ARE FILED AS A PART OF THIS STATEMENT OF
  ELIGIBILITY.
 
  1. A copy of the articles of association of First Union National Bank of
     North Carolina as now in effect, which contain the authority to commence
     business and a grant of powers to exercise corporate trust powers.
 
  2. A copy of the certificate of authority of the trustee to commence
     business, if not contained in the articles of association.
 
  3. A copy of the authorization of the trustee to exercise corporate trust
     powers, if such authorization is not contained in the documents
     specified in exhibits (1) or (2) above.
 
  4. A copy of the existing By-laws of the trustee, or instruments
     corresponding thereto.
 
  5. None.
 
  6. The consent of the trustee required by Section 321(b) of the Act. (See
     page 10 of this form.)
 
  7. A copy of the latest report of condition of the trustee published
     pursuant to law or to the requirements of its supervising or examining
     authority.
 
  8.Not applicable.
 
  9.Not applicable.
 
                                       5
<PAGE>
 
                                     NOTE
 
  NOTE 1: Since the trustee is a member of First Union Corporation, a bank
holding company, all of the voting securities of the trustee are held by First
Union Corporation. The securities of First Union Corporation are described in
Item 3.
 
                                   SIGNATURE
 
  Pursuant to the requirements of the Trust Indenture Act of 1939 the trustee,
First Union National Bank of North Carolina, a national banking organization,
has duly caused this statement of eligibility and qualification to be signed
on its behalf by the undersigned, thereunto duly authorized, all in the City
of Charlotte, and State of North Carolina, on the 2nd day of May, 1997.
 
                                          FIRST UNION NATIONAL BANK
                                          OF NORTH CAROLINA
                                          (trustee)
 
                                          By:
                                             /s/ Karen E. Atkinson

                                          Its:
                                             Assistant Vice President

 
                                       6
<PAGE>
 
                            CONSENT OF THE TRUSTEE
 
  Pursuant to the requirements of Section 321(b) of the Trust Indenture Act of
1939 in connection with the proposed issuance by Laboratory Corporation of
America Holdings of its   % Series A Convertible Exchangeable Preferred Stock
or   % Series B Convertible Pay-in-Kind Preferred Stock, we hereby consent
that reports of examinations by Federal, State, Territorial, or District
authorities may be furnished by such authorities to the Securities and
Exchange Commission upon request therefor.
 
                                          FIRST UNION NATIONAL BANK
                                          OF NORTH CAROLINA
 
                                          By: /s/ Karen E. Atkinson
 
                                          Its: Assistant Vice President
 
Dated: May 2, 1997
 
                                       7
<PAGE>
 
                                                                       ITEM # 1
 
1924C                                                         CHARTER NO. 15650
 
                  FIRST UNION NATIONAL BANK OF NORTH CAROLINA
 
                            ARTICLES OF ASSOCIATION
 
  For the purpose of organizing an Association to carry on the business of
banking under the laws of the United States, the undersigned do enter into the
following Articles of Association:
 
  FIRST. The title of this Association shall be FIRST UNION NATIONAL BANK OF
NORTH CAROLINA.
 
  SECOND. The main office of the Association shall be in Charlotte, County of
Mecklenburg, State of North Carolina. The general business of the Association
shall be conducted at its main office and its branches.
 
  THIRD. The Board of Directors of this Association shall consist of not less
than five nor more than twenty-five directors, the exact number of directors
within such minimum and maximum limits to be fixed and determined from time to
time by resolution of a majority of the full Board of Directors or by
resolution of the shareholders at any annual or special meeting thereof.
Unless otherwise provided by the laws of the United States, any vacancy in the
Board of Directors for any reason, including an increase in the number
thereof, may be filled by action of the Board of Directors.
 
  FOURTH. The annual meeting of the shareholders for the election of directors
and the transaction of whatever other business may be brought before said
meeting shall be held at the main office or such other place as the Board of
Directors may designate, on the day of each year specified therefor in the By-
Laws, but if no election is held on that day, it may be held on any subsequent
day according to the provisions of law; and all elections shall be held
according to such lawful regulations as may be prescribed by the Board of
Directors.
 
  Nominations for election to the Board of Directors may be made by the Board
of Directors or by any stockholder of any outstanding class of capital stock
of the bank entitled to vote for election of directors. Nominations, other
than those made by or on behalf of the existing management of the bank, shall
be made in writing and shall be delivered or mailed to the President of the
bank and to the Comptroller of the Currency, Washington, D.C., not less than
14 days nor more than 50 days prior to any meeting of stockholders called for
the election of directors, provided, however, that if less than 21 days'
notice of the meeting is given to shareholders, such nomination shall be
mailed or delivered to the President of the Bank and to the Comptroller of the
Currency not later than the close of business on the seventh day following the
day on which the notice of meeting was mailed. Such notification shall contain
the following information to the extent known to the notifying shareholder:
(a) the name and address of each proposed nominee; (b) the principal
occupation of each proposed nominee; (c) the total number of shares of capital
stock of the bank that will be voted for each proposed nominee; (d) the name
and residence address of the notifying shareholder; and (e) the number of
shares of capital stock of the bank owned by the notifying shareholder.
Nominations not made in accordance herewith may, in his discretion, be
disregarded by the Chairman of the meeting, and upon his instructions, the
vote tellers may disregard all votes cast for each such nominee.
 
  FIFTH. The authorized amount of capital stock of this Association shall be
7,500,000 shares of common stock of the par value of Fifteen Dollars ($15.00)
each, but said capital stock may be increased or decreased from time to time
in accordance with the provisions of the laws of the United States.
 
  If the capital stock is increased by the sale of additional shares thereof,
each shareholder shall be entitled to subscribe for such additional shares in
proportion to the number of shares of said capital stock owned by him at the
time the increase is authorized by the shareholders, unless another time
subsequent to the date of the shareholder's meeting is specified in a
resolution adopted by the shareholders at the time the increase is
 
                                       1
<PAGE>
 
authorized. The Board of Directors shall have the power to prescribe a
reasonable period of time within which the preemptive rights to subscribe to
the new shares of capital stock must be exercised.
 
  The Association, at any time and from time to time, may authorize and issue
debt obligations, whether or not subordinated, without the approval of the
shareholders.
 
  SIXTH. The Board of Directors shall appoint one of its members President of
this Association, who shall be Chairman of the Board, unless the Board
appoints another director to be the Chairman. The Board of Directors shall
have the power to appoint one or more Vice Presidents; and to appoint a
cashier or such other officers and employees as may be required to transact
the business of this Association.
 
  The Board of Directors shall have the power to define the duties of the
officers and employees of the Association, to fix the salaries to be paid to
them; to dismiss them, to require bonds from them and to fix the penalty
thereof; to regulate the manner in which any increase of the capital of the
Association shall be made; to manage and administer the business and affairs
of the Association; to make all By-Laws that it may be lawful for them to
make; and generally to do and perform all acts that it may be legal for a
Board of Directors to do and perform.
 
  SEVENTH. The Board of Directors shall have the power to change the location
of the main office to any other place within the limits of Charlotte, North
Carolina, without the approval of the shareholders but subject to the approval
of the Comptroller of the Currency; and shall have the power to establish or
change the location of any branch or branches of the Association to any other
location, without the approval of the shareholders but subject to the approval
of the Comptroller of the Currency.
 
  EIGHTH. The corporate existence of this Association shall continue until
terminated in accordance with the laws of the United States.
 
  NINTH. The Board of Directors of this Association, or any three or more
shareholders owning, in the aggregate, not less than 10 percent of the stock
of this Association, may call a special meeting of shareholders at any time.
Unless otherwise provided by the laws of the United States, a notice of the
time, place, and purpose of every annual and special meeting of the
shareholders shall be given by first-class mail, postage pre-paid, mailed at
least ten days prior to the date of such meeting to each shareholder of record
at his address as shown upon the books of this Association.
 
  TENTH. Each director and executive officer of this association shall be
indemnified by the association against liability in any proceeding (including
without limitation a proceeding brought by or on behalf of the association
itself) arising out of his status as such or his activities in either of the
foregoing capacities, except for any liability incurred on account of
activities which were at the time taken known or believed by such person to be
clearly in conflict with the best interests of the association. Liabilities
incurred by a director or executive officer of the association in defending a
proceeding shall be paid by the association in advance of the final
disposition of such proceeding upon receipt of an undertaking by the director
or executive officer to repay such amount if it shall be determined, as
provided in the last paragraph of this Article Tenth, that he is not entitled
to be indemnified by the association against such liabilities.
 
  The indemnity against liability in the preceding paragraph of this Article
Tenth, including liabilities incurred in defending a proceeding, shall be
automatic and self-operative.
 
  Any director, officer or employee of this association who serves at the
request of the association as a director, officer, employee or agent of a
charitable, not-for-profit, religious, educational or hospital corporation,
partnership, joint venture, trust or other enterprise, or a trade association,
or as a trustee or administrator under an employee benefit plan, or who serves
at the request of the association as a director, officer or employee of a
business corporation in connection with the administration of an estate or
trust by the association, shall have the right to be indemnified by the
association, subject to the provisions set forth in the following paragraph of
this Article Tenth, against liabilities in any manner arising out of or
attributable to such status or activities in any such capacity, except for any
liability incurred on account of activities which were at the time taken known
or believed by such person to be clearly in conflict with the best interests
of the association, or of the corporation, partnership, joint venture, trust,
enterprise, association or plan being served by such person.
 
                                       2
<PAGE>
 
  In the case of all persons except the directors and executive officers of
the association, the determination of whether a person is entitled to
indemnification under the preceding paragraph of this Article Tenth shall be
made by and in the sole discretion of the Chief Executive Officer of the
association. In the case of the directors and executive officers of the
association, the indemnity against liability in the preceding paragraph of
this Article Tenth shall be automatic and self-operative.
 
  For purposes of this Article Tenth of these Articles of Association only,
the following terms shall have the meanings indicated:
 
    (a) "Association" means First Union National Bank of North Carolina and
  its direct and indirect wholly-owned subsidiaries.
 
    (b) "Director" means an individual who is or was a director of the
  association.
 
    (c) "Executive officer" means an officer of the association who by
  resolution of the Board of Directors of the association has been determined
  to be an executive officer of the association for purposes of Regulation O
  of the Federal Reserve Board.
 
    (d) "Liability" means the obligation to pay a judgment, settlement,
  penalty, fine (including an excise tax assessed with respect to an employee
  benefit plan), or reasonable expenses, including counsel fees and expenses,
  incurred with respect to a proceeding.
 
    (e) "Party" includes an individual who was, is, or is threatened to be
  made a named defendant or respondent in a proceeding.
 
    (f) "Proceeding" means any threatened, pending, or completed claim,
  action, suit, or proceeding, whether civil, criminal, administrative, or
  investigative and whether formal or informal.
 
  The association shall have no obligation to indemnify any person for an
amount paid in settlement of a proceeding unless the association consents in
writing to such settlement.

  The right to indemnification herein provided for shall apply to persons who
are directors, officers, or employees of banks or other entities that are
hereafter merged or otherwise combined with the association only after the
effective date of such merger or other combination and only as to their status
and activities after such date.
 
  The right to indemnification herein provided for shall inure to the benefit
of the heirs and legal representatives of any person entitled to such right.
 
  No revocation of, change in, or adoption of any resolution or provision in
the Articles of Association or By-laws of the association inconsistent with,
this Article Tenth shall adversely affect the rights of any director, officer,
or employee of the association with respect to (i) any proceeding commenced or
threatened prior to such revocation, change, or adoption, or (ii) any
proceeding arising out of any act or omission occurring prior to such
revocation, change, or adoption, in either case, without the written consent
of such director, officer, or employee.
 
  The rights hereunder shall be in addition to and not exclusive of any other
rights to which a director, officer, or employee of the association may be
entitled under any statute, agreement, insurance policy, or otherwise.
 
  The association shall have the power to purchase and maintain insurance on
behalf of any person who is or was a director, officer, or employee of the
association, or is or was serving at the request of the association as a
director, officer, employee, or agent of another corporation, partnership,
joint venture, trust, trade association, employee benefit plan, or other
enterprise, against any liability asserted against such director, officer, or
employee in any such capacity, or arising out of their status as such, whether
or not the association would have the power to indemnify such director,
officer, or employee against such liability, excluding insurance coverage for
a formal order assessing civil money penalties against an association director
or employee.
 
 
                                       3
<PAGE>
 
  Notwithstanding anything to the contrary provided herein, no person shall
have a right to indemnification with respect to any liability (i) incurred in
an administrative proceeding or action instituted by an appropriate bank
regulatory agency which proceeding or action results in a final order
assessing civil money penalties or requiring affirmative action by an
individual or individuals in the form of payments to the association, (ii) to
the extent such person is entitled to receive payment therefor under any
insurance policy or from any corporation, partnership, joint venture, trust,
trade association, employee benefit plan, or other enterprise other than the
association, or (iii) to the extent that a court of competent jurisdiction
determines that such indemnification is void or prohibited under state or
federal law.
 
  ELEVENTH. These Articles of Association may be amended at any regular or
special meeting of the shareholders by the affirmative vote of the holders of
a majority of the stock of this Association, unless the vote of holders of a
greater amount of stock is required by law, and in that case, by the vote of
the holders of such greater amount.
 
                                       4
<PAGE>
 
                                                                        ITEM #2
 
                          COMPTROLLER OF THE CURRENCY
 
                   TREASURY DEPARTMENT OF THE UNITED STATES
 
                               WASHINGTON, D.C.
 
                       CERTIFICATION OF FIDUCIARY POWERS
 
  I, Billy L. Dowdle, Director for Trust Activities, do hereby certify that
the records in this Office evidence that FIRST UNION NATIONAL BANK OF NORTH
CAROLINA, CHARLOTTE, NORTH CAROLINA, was granted, under the hand and seal of
the Comptroller. The right to act in all fiduciary capacities authorized under
the provisions of the Act of Congress approved September 28, 1962, 76 Stat,
668, 12 USC 22a. I further certify that the authority so granted remains in
full force and effect.
 
                  [SEAL]                  IN TESTIMONY WHEREOF, I have
                                          hereunto subscribed my name and
                                          caused the Seal of Office of the
                                          Comptroller of the Currency to be
                                          affixed to these presents at the
                                          Treasury Department, in the City of
                                          Washington and District of Columbia
                                          this Thirteenth day of January,
                                          1988.
 
                                                   /s/ Billy L. Dowdle
                                          -------------------------------------
                                                     BILLY L. DOWDLE
                                              DIRECTOR FOR TRUST ACTIVITIES
 
                               CHARTER NO. 15650
 
                                       1
<PAGE>
 
                                                                        ITEM #4
 
                                  BY-LAWS OF
 
                  FIRST UNION NATIONAL BANK OF NORTH CAROLINA
 
                                   ARTICLE I
 
                           MEETINGS OF SHAREHOLDERS
 
  SECTION 1.1 ANNUAL MEETING. The annual meeting of the shareholders for the
election of directors and for the transaction of such other business as may
properly come before the meeting shall be held on the third Tuesday of April
in each year, commencing with the year 1987, except that the Board of
Directors may, from time to time and upon passage of a resolution specifically
setting forth their reasons, set such other date for such meeting during the
month of April as the Board of Directors may deem necessary or appropriate;
provided, however, that if an annual meeting shall fall on a legal holiday,
then such annual meeting shall be held on the second business day following
such legal holiday. The holders of a majority of those outstanding shares
entitled to vote which are represented at any meeting of the shareholders may
choose persons to act as Chairman and as Secretary of the meeting.
 
  SECTION 1.2 SPECIAL MEETINGS. Except as otherwise specifically provided by
statute, special meetings of the shareholders may be called for any purpose at
any time by the Board of Directors or by any three or more shareholders
owning, in the aggregate, not less than ten percent of the stock of the
Association. Every such special meeting, unless otherwise provided by law,
shall be called by mailing, postage prepaid, not less than ten days prior to
the date fixed for such meeting, to each shareholder at his address appearing
on the books of the Association, a notice stating the purpose of the meeting.
 
  SECTION 1.3 NOMINATIONS FOR DIRECTORS. Nominations for election to the Board
of Directors may be made by the Board of Directors or by any stockholder of
any outstanding class of capital stock of the bank entitled to vote for the
election of directors. Nominations, other than those made by or on behalf of
the existing management of the bank, shall be made in writing and shall be
delivered or mailed to the President of the Bank and to the Comptroller of the
Currency, Washington, D.C., not less than 14 days nor more than 50 days prior
to any meeting of stockholders called for the election of directors, provided
however, that if less than 21 days' notice of such meeting is given to
shareholders, such nomination shall be mailed or delivered to the President of
the Bank and to the Comptroller of the Currency not later than the close of
business on the seventh day following the day on which the notice of meeting
was mailed. Such notification shall contain the following information to the
extent known to the notifying shareholder: (a) the name and address of each
proposed nominee; (b) the principal occupation of each proposed nominee; (c)
the total number of shares of capital stock of the bank that will be voted for
each proposed nominee; (d) the name and residence address of the notifying
shareholder; and (e) the number of shares of capital stock of the bank owned
by the notifying shareholder. Nominations not made in accordance herewith may,
in his discretion, be disregarded by the chairman of the meeting, and upon his
instructions, the vote tellers may disregard all votes cast for each such
nominee.
 
  SECTION 1.4 JUDGES OF ELECTION. The Board may at any time appoint from among
the shareholders three or more persons to serve as Judges of election at any
meeting of shareholders; to act as judges and tellers with respect to all
votes by ballot at such meeting and to file with the Secretary of the meeting
a Certificate under their hands, certifying the result thereof.
 
  SECTION 1.5 PROXIES. Shareholders may vote at any meeting of the
shareholders by proxies duly authorized in writing, but no officer or employee
of this Association shall act as proxy. Proxies shall be valid only for one
meeting, to be specified therein, and any adjournments of such meeting.
Proxies shall be dated and shall be filed with the records of the meeting.
 
  SECTION 1.6 QUORUM. A majority of the outstanding capital stock, represented
in person or by proxy, shall constitute a quorum at any meeting of
shareholders, unless otherwise provided by law; but less than a
 
                                       1
<PAGE>
 
quorum may adjourn any meeting, from time to time, and the meeting may be
held, as adjourned, without further notice. A majority of the votes cast shall
decide every question or matter submitted to the shareholders at any meeting,
unless otherwise provided by law or by the Articles of Association.
 
                                  ARTICLE II
 
                                   DIRECTORS
 
  SECTION 2.1 BOARD OF DIRECTORS. The Board of Directors (hereinafter referred
to as the "Board"), shall have power to manage and administer the business and
affairs of the Association. Except as expressly limited by law, all corporate
powers of the Association shall be vested in and may be exercised by said
Board.
 
  SECTION 2.2 NUMBER. The Board shall consist of not less than five nor more
than twenty-five directors, the exact number within such minimum and maximum
limits to be fixed and determined from time to time by resolution of a
majority of the full Board or by resolution of the shareholders at any meeting
thereof; provided, however, that a majority of the full Board of Directors may
not increase the number of directors to a number which, (1) exceeds by more
than two the number of directors last elected by shareholders where such
number was fifteen or less, and (2) to a number which exceeds by more than
four the number of directors last elected by shareholders where such number
was sixteen or more, but in no event shall the number of directors exceed
twenty-five.
 
  SECTION 2.3 ORGANIZATION MEETING. The Secretary of the meeting upon
receiving the certificate of the judges, of the result of any election, shall
notify the directors-elect of their election and of the time at which they are
required to meet at the Main Office of the Association for the purpose of
organizing the new Board and electing the appointing officers of the
Association for the succeeding year. Such meeting shall be held as soon
thereafter as practicable. If, at the time fixed for such meeting, there shall
not be a quorum present, the directors present may adjourn the meeting from
time to time, until a quorum is obtained.
 
  SECTION 2.4 REGULAR MEETINGS. Regular meetings of the Board of Directors
shall be held at such place and time as may be designated by resolution of the
Board of Directors. Upon adoption of such resolution, no further notice of
such meeting dates or the place and time thereof shall be required. Upon the
failure of the Board of Directors to adopt such a resolution, regular meetings
of the Board of Directors shall be held, without notice, on the Wednesday
following the third Tuesday in February, April, June, August, October and
December beginning in 1987, at the main office or at such other place and time
as may be designated by the Board of Directors. When any regular meeting of
the Board falls upon a holiday, whether such regular meeting is established by
resolution or falls on the Wednesday following the third Tuesday of the month
as a result of the Board not having established regular meeting dates by
resolution, the meeting shall be held on the next banking business day unless
the Board shall designate some other day.
 
  SECTION 2.5 SPECIAL MEETINGS. Special meetings of the Board of Directors may
be called by the President of the Association, or at the request of three (3)
or more directors. Each member of the Board of Directors shall be given notice
stating the time and place, by telegram, letter, or in person, of each such
special meeting.
 
  SECTION 2.6 QUORUM. A majority of the directors shall constitute a quorum at
any meeting, except when otherwise provided by law; but a less number may
adjourn any meeting, from time to time, and the meeting may be held, as
adjourned, without further notice.
 
  SECTION 2.7 VACANCIES. When any vacancy occurs among the directors, the
remaining members of the Board, in accordance with the laws of the United
States, may appoint a director to fill such vacancy at any regular meeting of
the Board, or at a special meeting called for that purpose.
 
  SECTION 2.8 ADVISORY BOARDS. The Board of Directors may appoint an Advisory
Board or Boards in such place or places as the Board of Directors may
determine. Each such Advisory Board shall consist of as
 
                                       2
<PAGE>
 
many persons as the Board of Directors may determine. The duties of each
Advisory Board shall be to consult and advise with the Board of Directors and
senior officers of the Bank with regard to the best interests of the
Association and to perform such other duties as the Board of Directors may
lawfully delegate.
 
                                  ARTICLE III
 
                            COMMITTEES OF THE BOARD
 
  SECTION 3.1 The Board of Directors, by resolution adopted by a majority of
the number of directors fixed by these By-Laws, may designate three or more
directors to constitute an Executive Committee and other committees, each of
which, to the extent authorized by law and provided in such resolution, shall
have and may exercise all of the authority of the Board of Directors and the
management of the Association. The designation of any committee and the
delegation thereto of authority shall not operate to relieve the Board of
Directors, or any member thereof, of any responsibility or liability imposed
upon it or any member of the Board of Directors by law. The Board of Directors
reserves to itself alone the power to act on (1) dissolution, merger or
consolidation, or disposition of substantially all corporate property, (2)
designation of committees or filling vacancies on the Board of Directors or on
a committee of the Board (except as hereinafter provided), (3) adoption,
amendment or repeal of By-laws, (4) amendment or repeal of any resolution of
the Board which by its terms is not so amendable or repealable, and (5)
declaration of dividends, issuance of stock, or recommendations to
stockholders of any action requiring stockholder approval.
 
  The Board of Directors or the Chairman of the Board of Directors of the
Association may change the membership of any committee at any time, fill
vacancies therein, discharge any committee or member thereof either with or
without cause at any time, and change at any time the authority and
responsibility of any such committee.
 
  A majority of the members of any committee of the Board of Directors may fix
such committee's rules of procedure. All action by any committee shall be
reported to the Board of Directors at a meeting succeeding such action, except
such actions as the Board may not require to be reported to it in the
resolution creating any such committee. Any action by any committee shall be
subject to revision, alteration, and approval by the Board of Directors,
except to the extent otherwise provided in the resolution creating such
committee; provided, however, that no rights or acts of third parties shall be
affected by any such revision or alteration.
 
                                  ARTICLE IV
 
                            OFFICERS AND EMPLOYEES
 
  SECTION 4.1 OFFICERS. The officers of this Association may be a Chairman of
the Board, one or more Vice Chairman (who shall not be required to be a
director of the Association), a President, one or more Vice Presidents, a
Secretary, and such other officers as may be appointed by the Board of
Directors. The Chairman of the Board and the President shall be a member of
the Board of Directors. Any two offices or more may be held by one person, but
no officer shall sign or execute any document in more than one capacity.
 
  SECTION 4.2 ELECTION, TERM OF OFFICE AND QUALIFICATION. Each officer shall
be chosen by the Board of Directors and shall hold office until the annual
meeting of the Board of Directors held next after his election or until his
successor shall have been duly chosen and qualified, or until his death, or
until he shall resign, or shall have been disqualified, or shall have been
removed from office.
 
  SECTION 4.2(A) OFFICERS ACTING AS ASSISTANT SECRETARY. Notwithstanding
Section 1 of these By-laws, any Senior Vice President, Vice President, or
Assistant Vice President shall have, by virtue of his office, and by authority
of the By-laws, the authority from time to time to act as an Assistant
Secretary of the Bank, and to such extent, said officers are appointed to the
office of Assistant Secretary.
 
                                       3
<PAGE>
 
  SECTION 4.3  CHIEF EXECUTIVE OFFICER. The Board of Directors shall designate
one of its members to be the President of this Association, and the officer so
designated shall be an ex officio member of all committees of the Association
except the Examining Committee, and its Chief Executive Officer unless some
other officer is so designated by the Board of Directors.
 
  SECTION 4.4 DUTIES OF OFFICERS. The Duties of all officers shall be
prescribed by the Board of Directors. Nevertheless, the Board of Directors may
delegate to the Chief Executive Officer the authority to prescribe the duties
of other officers of the corporation not inconsistent with law, the charter,
and these By-laws, and to appoint other employees, prescribe their duties, and
to dismiss them. Notwithstanding such delegation of authority, any officer or
employee also may be dismissed at any time by the Board of Directors.
  SECTION 4.5 OTHER EMPLOYEES. The Board of Directors may appoint from time to
time such tellers, vault custodians, bookkeepers, and other clerks, agents,
and employees as it may deem advisable for the prompt and orderly transaction
of the business of the Association, define their duties, fix the salary to be
paid them, and dismiss them. Subject to the authority of the Board of
Directors, the Chief Executive Officer or any other officer of the Association
authorized by him, may appoint and dismiss all such tellers, vault custodians,
bookkeepers and other clerks, agents, and employees, prescribe their duties
and the conditions of their employment, and from time to time fix their
compensation.
 
  SECTION 4.6 REMOVAL AND RESIGNATION. Any officer or employee of the
Association may be removed either with or without cause by the Board of
Directors. Any employee other than an officer elected by the Board of
Directors may be dismissed in accordance with the provisions of the preceding
Section 4.5. Any officer may resign at any time by giving written notice to
the Board of Directors or to the Chief Executive Officer of the Association.
Any such resignation shall become effective upon its being accepted by the
Board of Directors, or the Chief Executive Officer.
 
                                   ARTICLE V
 
                               FIDUCIARY POWERS
 
  SECTION 5.1 CAPITAL MANAGEMENT GROUP. There shall be an area of this
Association known as the Capital Management Group which shall be responsible
for the exercise of the fiduciary powers of this Association. The Capital
Management Group shall consist of four service areas: Fiduciary Services,
Retail Services, Investments and Marketing. The Fiduciary Services unit shall
consist of personal trust, employee benefits, corporate trust and operations.
The General Office for the Fiduciary Services unit shall be located in
Charlotte, N.C. with City Trust Offices located in such cities within the
State of North Carolina as designated by the Board of Directors.
 
  SECTION 5.2 TRUST OFFICERS. There shall be a General Trust Officer of this
Association whose duties shall be to manage, supervise, and direct all the
activities of the Capital Management Group. Further, there shall be one or
more Senior Trust Officers designated to assist the General Trust Officer in
the performance of his duties. They shall do or cause to be done all things
necessary or proper in carrying out the business of the Capital Management
Group in accordance with provisions of applicable law and regulation.
 
  SECTION 5.3 CAPITAL MANAGEMENT/GENERAL TRUST COMMITTEE. There shall be a
Capital Management/General Trust Committee composed of not less than four (4)
members of the Board of Directors of this Association who shall be appointed
annually or from time to time by its membership. The General Trust Officer
shall serve as an ex-officio member of the Committee. Each member shall serve
until his successor is appointed. The Board of Directors or the Chairman of
the Board may change the membership of the Capital Management/General Trust
Committee at any time, fill vacancies therein, or discharge any member thereof
with or without cause at any time. The Committee shall counsel and advise on
all matters relating to the business or
 
                                       4
<PAGE>
 
affairs of the Capital Management Group and shall adopt overall policies for
the conduct of the business of the Capital Management Group including but not
limited to: general administration, investment policies, new business
development, and review for approval of major assignments of functional
responsibilities. The Committee shall meet at least quarterly or as called for
by its Chairman or any three (3) members of the Committee. A quorum shall
consist of three (3) members. In carrying out its responsibilities, the
Capital Management/General Trust Committee shall review the actions of all
officers, employees and committees utilized by this Association in connection
with the activities of the Capital Management Group and may assign the
administration and performance of any fiduciary powers or duties to any of
such officers or employees or to the Investment Policy Committee, Personal
Trust Administration Committee, Account Review Committee, Corporate and
Institutional Accounts Committee, or any other committees it shall designate.
One of the methods to be used in the review process will be the thorough
scrutiny of the Report of Examination by the Office of the Comptroller of the
Currency and the reports of the Audit Division of First Union Corporation, as
they relate to the activities of the Capital Management Group. These reviews
shall be in addition to reviews of such reports by the Audit Committee of the
Board of Directors. The Chairman of the Capital Management/General Trust
Committee shall be appointed by the Chairman of the Board of Directors. He
shall cause to be recorded in appropriate minutes all actions taken by the
Committee. The minutes shall be signed by its Secretary and approved by its
Chairman. Further, the Committee shall summarize all actions taken by it and
shall submit a report of its proceedings to the Board of Directors at its next
regularly scheduled meeting following a meeting of the Capital
Management/General Trust Committee. As required by Section 9.7 of Regulation 9
of the Comptroller of the Currency, the Board of Directors retains
responsibility for the proper exercise of the fiduciary powers of this
Association.
 
  The Fiduciary Services unit of the Capital Management Group will maintain a
list of securities approved for investment in fiduciary accounts and will from
time to time provide the Capital Management/General Trust Committee with
current information relative to such list and also with respect to
transactions in other securities not on such list. It is the policy of this
Association that members of the Capital Management/General Trust Committee
should not buy, sell or trade in securities which are on such approved list or
in any other securities in which the Fiduciary Services unit has taken, or
intends to take, a position in fiduciary accounts in any circumstances in
which any such transaction could be viewed as a possible conflict of interest
or could constitute a violation of applicable law or regulation. Accordingly,
if any such securities are owned by any member of the Capital
Management/General Trust Committee at the time of appointment to such
Committee, the Capital Management Group shall be promptly so informed in
writing. If any member of the Capital Management/General Trust Committee
intends to buy, sell, or trade in any such securities while serving as a
member of the Committee, he should first notify the Capital Management Group
in order to make certain that any proposed transaction will not constitute a
violation of this policy or of applicable law or regulation.
 
  SECTION 5.4 INVESTMENT POLICY COMMITTEE. There shall be an Investment Policy
Committee composed of not less than seven (7) officers and/or employees of
this Association who shall be appointed annually or from time to time by the
Board of Directors. Each member shall serve until his successor is appointed.
Meetings shall be called by the Chairman or any two (2) members of the
Committee. A quorum shall consist of five (5) members. The Investment Policy
Committee shall exercise such fiduciary powers and perform such duties as may
be assigned to it by the Capital Management/General Trust Committee. All
actions taken by the Investment Policy Committee shall be recorded in
appropriate minutes, signed by the Secretary thereof, approved by its Chairman
and submitted to the Capital Management/General Trust Committee at its next
ensuing regular meeting for its review and approval.
 
  SECTION 5.5 PERSONAL TRUST ADMINISTRATION COMMITTEE. There shall be a
Personal Trust Administration Committee composed of not less than five (5)
officers, who shall be appointed annually or from time to time by the Board of
Directors. Each member shall serve until his successor is appointed. Meetings
shall be called by the Chairman or any three (3) members of the Committee. A
quorum shall consist of three (3) members. The Personal Trust Administration
Committee shall exercise such fiduciary powers and perform such duties as may
be assigned to it by the Capital Management/General Trust Committee. All
action taken by the
 
                                       5
<PAGE>
 
Personal Trust Administration Committee shall be recorded in appropriate
minutes signed by the Secretary thereof, approved by its Chairman, and
submitted to the Capital Management/General Trust Committee at its next
ensuing regular meeting for its review and approval.
 
  SECTION 5.6 ACCOUNT REVIEW COMMITTEE. There shall be an Account Review
Committee composed of not less than four (4) officers and/or employees of this
Association, who shall be appointed annually or from time to time by the Board
of Directors. Each member shall serve until his successor is appointed.
Meetings shall be called by the Chairman or any two (2) members of the
Committee. A quorum shall consist of three (3) members. The Account Review
Committee shall exercise such fiduciary powers and perform such duties as may
be assigned to it by the Capital Management/General Trust Committee. All
actions taken by the Account Review Committee shall be recorded in appropriate
minutes, signed by the Secretary thereof, approved by its Chairman and
submitted to the Capital Management/General Trust Committee at its next
ensuing regular meeting for its review and approval.
 
  SECTION 5.7 CORPORATE AND INSTITUTIONAL ACCOUNTS COMMITTEE. There shall be a
Corporate and Institutional Accounts Committee composed of not less than seven
(7) officers and/or employees of this Association, including the General Trust
Officer, the Manager of the Fiduciary Services unit, the Manager of the Retail
Services unit, the Manager of the Investments unit, the Manager of the
Marketing unit, the Manager of the Pension Trust Department, the Manager of
the Corporate Trust Department and the Manager of the Administrative Services
Department, plus any other officers and/or employees, who shall be appointed
annually, or from time to time, by the Capital Management/General Trust
Committee of the Board of Directors and approved by the Board of Directors.
Meetings may be called by the Chairman of any Vice Chairman or any two (2)
members of the Committee. A quorum shall consist of four (4) members. The
Corporate and Institutional Accounts Committee shall exercise such fiduciary
powers and duties assigned to it by the Corporate Management/General Trust
Committee, including, but not limited to, the review and acceptance of all new
appointments of this Association in a fiduciary capacity for corporate and
institutional accounts, review and approval of all closing out of such
accounts, interpretation of provisions of various instruments under which this
Association is appointed and serves in a fiduciary capacity for such accounts,
establishing policies and procedures for the administration of corporate and
institutional accounts, review and approval of all published fee schedules
applicable to such accounts and all such fees that are non-published and used
in competitive bidding situations, review of audits and examinations of the
various departments carrying out the administration of corporate and
institutional accounts, and any and all other duties and responsibilities as
may be assigned from time to time by the Capital Management/General Trust
Committee. The Committee shall have a Chairman who shall preside at regular
and called meetings, one or more Vice Chairmen, and a Secretary and one or
more Assistant Secretaries, who shall record in appropriate minutes all
actions taken by the Committee. The Chairman, Vice Chairmen and Secretary and
any Assistant Secretaries shall be elected by members of the Committee.
Minutes of the Committee shall be submitted to the Capital Management/General
Trust Committee at its next ensuing regular meeting for its review and
approval.
 
                                  ARTICLE VI
 
                         STOCK AND STOCK CERTIFICATES
 
  SECTION 6.1 TRANSFERS. Shares of stock shall be transferable on the books of
the Association, and a transfer book shall be kept in which all transfers of
stock shall be recorded. Every person becoming a shareholder by such transfer
shall, in proportion to his shares, succeed to all rights and liabilities of
the prior holder of such shares.
 
  SECTION 6.2 STOCK CERTIFICATES. Certificates of stock shall bear the
signature of the Chairman, the Vice Chairman, the President, or a Vice
President (which may be engraved, printed, or impressed), and shall be signed
manually or by facsimile process by the Secretary, Assistant Secretary,
Cashier, Assistant Cashier, or any other officer appointed by the Board of
Directors for that purpose, to be known as an Authorized Officer, and the seal
of the Association shall be engraved thereon. Each certificate shall recite on
its face that the stock represented thereby is transferable only upon the
books of the Association properly endorsed.
 
                                       6
<PAGE>
 
                                  ARTICLE VII
 
                                CORPORATE SEAL
 
  SECTION 7.1 The President, the Cashier, the Secretary, or any Assistant
Cashier, or Assistant Secretary, or other officer thereunto designated by the
Board of Directors shall have authority to affix the corporate seal to any
document requiring such seal, and to attest the same. Such seal shall be
substantially in the following form.
 
                                 ARTICLE VIII
 
                           MISCELLANEOUS PROVISIONS
 
  SECTION 8.1 FISCAL YEAR. The fiscal year of the Association shall be the
calendar year.
 
  SECTION 8.2 EXECUTION OF INSTRUMENTS. All agreements, indentures, mortgages,
deeds, conveyances, transfers, certificates, declarations, receipts,
discharges, releases, satisfactions, settlements, petitions, schedules,
accounts, affidavits, bonds, undertakings, proxies, and other instruments or
documents may be signed, executed, acknowledged, verified, delivered or
accepted in behalf of the Association by the Chairman of the Board, or the
President, or any Vice Chairman of the Board, any Vice President or Assistant
Vice President, or the Secretary or Assistant Secretary, Cashier, or Assistant
Cashier, or, if in connection with the exercise of fiduciary powers of the
Association, by any of said officers or by any Trust Officer or Assistant
Trust Officer; provided, however, that where required, any such instrument
shall be attested by one of said officers other than the officer executing
such instrument. Any such instruments may also be executed, acknowledged,
verified, delivered, or accepted in behalf of the Association in such other
manner and by such other officers as the Board of Directors may from time to
time direct. The provisions of this Section 8.2 are supplementary to any other
provision of these By-laws.
 
  SECTION 8.3 RECORDS. The Articles of Association, the By-laws, and the
proceedings of all meetings of the shareholders, the Board of Directors,
standing committees of the Board, shall be recorded in appropriate minute
books provided for the purpose. The minutes of each meeting shall be signed by
the Secretary, Cashier, or other officer appointed to act as Secretary of the
meeting.
 
                                  ARTICLE IX
 
                                    BY-LAWS
 
  SECTION 9.1 INSPECTION. A copy of the By-laws, with all amendments thereto,
shall at all times be kept in a convenient place at the Head Office of the
Association, and shall be open for inspection to all shareholders, during
banking hours.
 
  SECTION 9.2 AMENDMENTS. The By-laws may be amended, altered or repealed, at
any regular or special meeting of the Board of Directors, by a vote of a
majority of the whole number of Directors.
 
                                       7
<PAGE>
 
                                   EXHIBIT A
 
                  FIRST UNION NATIONAL BANK OF NORTH CAROLINA
 
                                   ARTICLE X
 
                               EMERGENCY BY-LAWS
 
  In the event of an emergency declared by the President of the United States
or the person performing his functions, the officers and employees of this
Association will continue to conduct the affairs of the Association under such
guidance from the directors or the Executive Committee as may be available
except as to matters which by statute require specific approval of the Board
of Directors and subject to conformance with any applicable governmental
directives during the emergency.
 
                       OFFICERS PRO TEMPORE AND DISASTER
 
  SECTION 1. The surviving members of the Board of Directors or the Executive
Committee shall have the power, in the absence or disability of any officer,
or upon the refusal of any officer to act, to delegate and prescribe such
officer's powers and duties to any other officer, or to any director, for the
time being.
 
  SECTION 2. In the event of a state of disaster of sufficient severity to
prevent the conduct and management of the affairs and business of this
Association by its directors and officers as contemplated by these By-laws,
any two or more available members of the then incumbent Executive Committee
shall constitute a quorum of that Committee for the full conduct and
management of the affairs and business of the Association in accordance with
the provisions of Article II of these By-laws; and in addition, such Committee
shall be empowered to exercise all of the powers reserved to the General Trust
Committee under Section 5.3 of Article V hereof. In the event of the
unavailability, at such time, of a minimum of two members of the then
incumbent Executive Committee, any three available directors shall constitute
the Executive Committee for the full conduct and management of the affairs and
business of the Association in accordance with the foregoing provisions of
this section. This By-law shall be subject to implementation by resolutions of
the Board of Directors passed from time to time for that purpose, and any
provisions of these By-laws (other than this section) and any resolutions
which are contrary to the provisions of this section or to the provisions of
any such implementary resolutions shall be suspended until it shall be
determined by an interim Executive Committee acting under this section that it
shall be to the advantage of this Association to resume the conduct and
management of its affairs and business under all of the other provisions of
these By-laws.
 
                              OFFICER SUCCESSION
 
  BE IT RESOLVED, that if consequent upon war or warlike damage or disaster,
the Chief Executive Officer of this Association cannot be located by the then
acting Head Officer or is unable to assume or to continue normal executive
duties, then the authority and duties of the Chief Executive Officer shall,
without further action of the Board of Directors, be automatically assumed by
one of the following persons in the order designated:
 
   Chairman
   President
   Division Head/Area Administrator--Within this officer class, officers
    shall take seniority on the basis of length of service in such office
    or, in the event of equality, length of service as an officer of the
    Association.
 
  Any one of the above persons who in accordance with this resolution assumes
the authority and duties of the Chief Executive Officer shall continue to
serve until he resigns or until five-sixths of the other officers who are
attached to the then acting Head Office decide in writing he is unable to
perform said duties or until the
 
                                       8
<PAGE>
 
elected Chief Executive Officer of this Association, or a person higher on the
above list, shall become available to perform the duties of Chief Executive
Officer of the Association.
 
  BE IT FURTHER RESOLVED, that anyone dealing with this Association may accept
a certification by any three officers that a specified individual is acting as
Chief Executive Officer in accordance with this resolution; and that anyone
accepting such certification may continue to consider it in force until
notified in writing of a change, said notice of change to carry the signatures
of three officers of the Association.
 
                              ALTERNATE LOCATIONS
 
  The offices of the Association at which its business shall be conducted
shall be the main office thereof in each city which is designated as a City
Office (and branches, if any), and any other legally authorized location which
may be leased or acquired by this Association to carry on its business. During
an emergency resulting in any authorized place of business of this Association
being unable to function, the business ordinarily conducted at such location
shall be relocated elsewhere in suitable quarters, in addition to or in lieu
of the locations heretofore mentioned, as may be designated by the Board of
Directors or by the Executive Committee or by such persons as are then, in
accordance with resolutions adopted from time to time by the Board of
Directors dealing with the exercise of authority in the time of such
emergency, conducting the affairs of this Association. Any temporarily
relocated place of business of this Association shall be returned to its
legally authorized location as soon as practicable and such temporary place of
business shall then be discontinued.
 
                             ACTING HEAD OFFICERS
 
  BE IT RESOLVED, that in case of and provided because of war or warlike
damage or disaster, the General Office of this Association, located in
Charlotte, North Carolina, is unable temporarily to continue its functions,
the Raleigh office, located in Raleigh, North Carolina, shall automatically
and without further action of this Board of Directors, become the "Acting Head
Office of this Association";
 
  BE IT FURTHER RESOLVED, that if by reason of said war or warlike damage or
disaster, both the General Office of this Association and the said Raleigh
Office of this Association are unable to carry on their functions, then and in
such case, the Asheville Office of this Association, located in Asheville,
North Carolina, shall, without further action of this Board of Directors,
become the "Acting Head Office of this Association"; and if neither the
Raleigh Office nor the Asheville Office can carry on their functions, then the
Greensboro Office of this Association, located in Greensboro, North Carolina,
shall, without further action of this Board of Directors, become the "Acting
Head Office of this Association"; and if neither the Raleigh Office, the
Asheville Office, nor the Greensboro Office can carry on their functions, then
the Lumberton Office of this Association, located in Lumberton, North
Carolina, shall, without further action of this Board of Directors, become the
"Acting Head Office of this Association". The Head Office shall resume its
functions at its legally authorized location as soon as practicable.
 
                                       9
<PAGE>
 
                                                                        ITEM #7
 
Thursday                                             Media Contact: Jeep Bryant
April 10, 1997                                            704-374-2957 (office)
                                                            704-442-9046 (home)
                                                 Investor Contact: Alice Lehman
                                                                   704-374-4139
 
      FIRST UNION'S EARNING INCREASE TO A RECORD $1.67 PER SHARE, UP 11%
 
  Charlotte, N.C.--First Union Corporation's earnings were $471 million in the
first quarter of 1997, a 12 percent increase from operating earnings of $420
million before merger-related restructuring charges in the first quarter of
1996. On a per common share basis, earnings were $1.67, an 11 percent increase
from operating earnings of $1.50 in the first quarter of 1996.
 
  The first quarter 1997 earnings represented a return on common equity of
19.58 percent and a return on assets of 1.42 percent.
 
  "Our fee-based businesses continue to provide excellent growth," said Edward
E. Crutchfield, chairman and chief executive officer. "We are especially
pleased with 67 percent fee income growth from last year in our Capital
Markets Group, which provides a variety of sophisticated financing products
and services primarily to our middle-market customer base. Our Capital
Management Group, which increased fee income 61 percent from last year, also
continues to expand with broad and balanced products for customers throughout
the needs and stages of their lives. Considering demographic trends, our entry
into new markets and the fact that we are now widely advertising our products,
we expect strong sales momentum going forward."
 
  Key factors in the first quarter of 1997 compared with the first quarter of
1996 included:
 
    [_] 5 percent growth in tax-equivalent net interest income;
    [_] 47 percent growth in noninterest, or fee, income (excluding
    securities transactions); and
    [_] Good expense control, with an efficiency ratio of 56.81 percent,
      compared with 57.36 percent (excluding merger-related restructuring
      charges) in the first quarter of 1996.
 
  Also included in the first quarter of 1997 were three purchase acquisitions
that closed in the fourth quarter of 1996.
 
  Tax-equivalent net interest income in the first quarter of 1997 was $1.3
billion, compared with $1.2 billion in the first quarter of 1996.
 
  First Union's strategic decision to allocate more resources to lines of
business that produce fee income-earnings streams was apparent in the increase
in noninterest, or fee, income of $753 million in the first quarter of 1997
compared with $526 million in the first quarter of 1996.
 
  Average net loans increased 6 percent to $94.6 billion, compared with $89.3
billion in the first quarter of 1996. Loan growth came primarily from First
Union's Specialized Industry Group in Capital Markets and from the purchase
acquisitions.
 
  Nonperforming assets were $778 million, or 0.81 percent of net loans and
foreclosed properties, compared with $842 million, or 0.93 percent of net
loans and foreclosed properties, at March 31, 1996. Annualized net charge-offs
were 0.61 percent in the first quarter of 1997, compared with 0.66 percent in
the first quarter of 1996. Net charge-offs, excluding credit card-related
charge-offs, were 0.20 percent in the first quarter of 1997, compared with
0.45 percent in the first quarter of 1996.
 
  At the end of the first quarter of 1997, First Union had 280 million shares
of common stock outstanding, compared with 287 million shares at year-end
1996. First Union repurchased 9.9 million shares of common stock in the first
quarter of 1997.
 
  At March 31, 1997, First Union (NYSE: FTU) had assets of $137 billion. Total
stockholders' equity was $9.5 billion. The company operates full-service
banking offices in Connecticut, Delaware, Florida, Georgia, Maryland, New
Jersey, New York, North Carolina, Pennsylvania, Virginia, South Carolina,
Tennessee and Washington, D.C.
<PAGE>
 
                            FIRST UNION CORPORATION
 
                                 EARNINGS DATA
                                  (UNAUDITED)
<TABLE>
<CAPTION>
                                                THREE MONTHS ENDED
                                                     MARCH 31,          1Q 1997
                                              ------------------------     VS.
                                                 1997         1996       1Q 1996
                                              -----------  -----------  --------
                                               (DOLLARS IN MILLIONS,
                                               EXCEPT PER SHARE DATA)
<S>                                           <C>          <C>          <C>
FINANCIAL HIGHLIGHTS
Net income..................................  $       471  $       243      94%
                                              -----------  -----------    ----
Dividends on preferred stock................          --             4    (100)
Net income applicable to common stockholders
 after merger-related restructuring charges.          471          239      97
After-tax restructuring charges.............          --           181    (100)
Net income applicable to common stockholders
 before merger-related restructuring
 charges....................................  $       471  $       420      12%
                                              -----------  -----------    ----
PER COMMON SHARE DATA
Net income after merger-related
 restructuring charges......................  $      1.67  $      0.85      96%
                                              -----------  -----------    ----
Net income before merger-related
 restructuring charges......................         1.67         1.50      11
Cash dividends..............................         0.58         0.52      12
Book value..................................  $     33.86  $     31.80       6
                                              -----------  -----------    ----
Period-end price............................       81.125       60.375      34
Average common shares (In thousands)........      282,553      280,374       1
Actual common shares (In thousands).........      279,832      281,064     --
Dividend payout ratios (based on operating
 earnings)..................................        34.73%       34.67%    -- %
PERFORMANCE HIGHLIGHTS
Before merger-related restructuring charges
  Return on average assets (a) (b)..........         1.42%        1.30%    --
  Return on average common equity (a) (c)...        19.58        18.67     --
  Overhead efficiency ratio (d).............        56.81        57.36     --
Net charge-offs as a percentage of Average
 loans, net (a).............................         0.61         0.66     --
Average loans, net, excluding Bankcard (a)..         0.20         0.45     --
Nonperforming assets to loans, net and
 foreclosed properties......................         0.81         0.93     --
Net interest margin (a).....................         4.37%        4.19%    --
CASH EARNINGS (EXCLUDING OTHER INTANGIBLE
 AMORTIZATION)
Before merger-related restructuring charges
  Net income applicable to common
   stockholders.............................  $       524  $       472      11%
                                              -----------  -----------    ----
  Net income per common share...............  $      1.86  $      1.68      11
                                              -----------  -----------    ----
  Return on average tangible assets (a).....         1.61%        1.49%    --
  Return on average tangible common equity
   (a) (c)..................................        30.74        27.85     --
  Overhead efficiency ratio.................        53.60%       53.83%    -- %
</TABLE>
- --------
(a) Quarterly amounts annualized.
(b) Based on net income.
(c) Based on net income applicable to common stockholders and average common
    stockholders' equity excluding average net unrealized gains or losses on
    debt and equity securities.
(d) The overhead efficiency ratio is equal to noninterest expense divided by
    net operating revenue. Net operating revenue is equal to the sum of tax-
    equivalent net interest income and noninterest income, including
    securities transactions.
 
                                       2
<PAGE>
 
                            FIRST UNION CORPORATION
 
                                 EARNINGS DATA
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                     THREE MONTHS ENDED
                                                          MARCH 31,      1Q 1997
                                                     -------------------   VS
                                                       1997      1996    1Q 1996
                                                     --------- --------- -------
                                                            (IN MILLIONS)
<S>                                                  <C>       <C>       <C>
EARNINGS SUMMARY
Net interest income (a)............................  $   1,303 $   1,237     5%
                                                     --------- ---------  ----
Provision for loan losses..........................        145        70   107
Net interest income after provision for loan losses
 (a)...............................................      1,158     1,167    (1)
Securities available for sale transactions.........          4        15   (73)
Investment security transactions...................        --          1  (100)
Noninterest income.................................        749       510    47
Merger-related restructuring charges...............        --        281  (100)
Noninterest expense................................      1,169     1,011    16
Income before income taxes (a).....................        742       401    85
Income taxes.......................................        255       133    92
Tax-equivalent adjustment..........................         16        25   (36)
Net income.........................................        471       243    94
Dividends on preferred stock.......................        --          4  (100)
Net income applicable to common stockholders after
 merger-related restructuring charges..............  $     471 $     239    97%
                                                     --------- ---------  ----
AVERAGE BALANCE SHEET DATA
Loans, net of unearned income......................  $  94,618 $  89,274     6%
                                                     --------- ---------  ----
Earning assets.....................................    119,703   118,233     1
Total assets.......................................    134,894   130,737     3
                                                     --------- ---------  ----
Noninterest-bearing deposits.......................     16,925    16,286     4
Interest-bearing deposits..........................     75,771    74,850     1
Common stockholders' equity (b)....................      9,761     8,930     9
Total stockholders' equity (b).....................  $   9,761 $   9,110     7%
                                                     ========= =========  ====
</TABLE>
- --------
(a)Tax-equivalent.
(b)Excludes average net unrealized gains or losses on debt and equity
securities.
 
                                       3
<PAGE>
 
                            FIRST UNION CORPORATION
 
                        QUARTERLY FINANCIAL HIGHLIGHTS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                    1997                                1996
                                    FIRST   FOURTH    THIRD   SECOND    FIRST
                                   QUARTER  QUARTER  QUARTER  QUARTER  QUARTER
                                   -------  -------  -------  -------  -------
                                     (DOLLARS IN MILLIONS, EXCEPT COMMON
                                                STOCK PRICES)
<S>                                <C>      <C>      <C>      <C>      <C>
SELECTED LINES OF BUSINESS DATA
 (a)
Capital Markets
  Tax-equivalent net interest
   income......................... $    88  $    81  $    83  $    82  $    77
                                   -------  -------  -------  -------  -------
  Fee and other income............ $   149  $   169  $   121  $    85  $    89
                                   -------  -------  -------  -------  -------
Capital Management
  Trust fees...................... $    81  $    79  $    77  $    73  $    71
                                   -------  -------  -------  -------  -------
  Mutual fund fees................      58       24       21       20       19
    Total.........................     139      103       98       93       90
  Less internal management
   reporting adjustments (b)......      (7)      (7)      (6)      (5)      (4)
    Total.........................     132       96       92       88       86
  Brokerage commissions...........      36       29       26       26       22
  Insurance commissions...........      24       22       19       17       10
  Other retail fees...............      11       10        8        7        8
                                   -------  -------  -------  -------  -------
    Total Capital Management
     income....................... $   203  $   157  $   145  $   138  $   126
                                   =======  =======  =======  =======  =======
COMMON STOCK PRICE
High.............................. $95.625  $77.000  $67.875  $64.625  $62.875
                                   -------  -------  -------  -------  -------
Low...............................  73.375   67.000   61.125   57.500   51.500
Period-end........................ $81.125  $74.000  $66.750  $60.875  $60.375
                                   -------  -------  -------  -------  -------
</TABLE>
- --------
(a) Certain information is prepared from internal management reports.
(b) Internal management reporting adjustments represent the elimination of
    inter-affiliate fee income, the results of which are included in the
    consolidated statements of income.
 
                                       4
<PAGE>
 
                            FIRST UNION CORPORATION
 
                         QUARTERLY FINANCIAL HIGHLIGHTS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                    1997                                 1996
                                   FIRST     FOURTH   THIRD    SECOND   FIRST
                                  QUARTER   QUARTER  QUARTER  QUARTER  QUARTER
                                  --------  -------- -------- -------- --------
                                             (DOLLARS IN MILLIONS)
<S>                               <C>       <C>      <C>      <C>      <C>
PERIOD-END BALANCE SHEET DATA
Securities available for sale.... $ 14,411    14,182   13,729   21,835   17,178
Investment securities............    2,408     2,501    2,566    2,681    2,927
Loans, net of unearned income....   95,487    95,858   92,520   91,339   89,990
Earning assets...................  121,134   123,815  119,294  126,918  117,870
  Total assets...................  136,730   140,127  133,882  139,886  130,581
Noninterest-bearing deposits.....   18,275    18,632   18,008   16,831   16,726
Interest-bearing deposits........   74,128    76,183   73,436   74,622   73,792
Long-term debt...................    7,604     7,660    7,332    7,807    7,538
Guaranteed preferred beneficial
interests........................      990       495       --       --       --
Common stockholders' equity......    9,474    10,008    8,641    9,153    8,939
                                  --------  -------- -------- -------- --------
  Total stockholders' equity..... $  9,474    10,008    8,689    9,316    9,110
                                  ========  ======== ======== ======== ========
CAPITAL RATIOS
Tier 1 capital (a)...............     7.38%     7.33     6.38     7.11     7.00
Total capital (a)................    12.10     12.33    10.94    11.94    11.91
Leverage (a).....................     6.13      6.13     5.23     5.60     5.56
Stockholders' equity to assets
 Quarter-end.....................     6.93      7.14     6.49     6.66     6.98
 Average.........................     7.20%     6.85     6.63     6.76     7.04
</TABLE>
- --------
(a) The first quarter of 1997 is based on estimates.
 
                                       5
<PAGE>
 
                            FIRST UNION CORPORATION
 
                       CONSOLIDATED STATEMENTS OF INCOME
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                   1997 FIRST FOURTH   THIRD  SECOND  1996 FIRST
                                    QUARTER   QUARTER QUARTER QUARTER  QUARTER
                                   ---------- ------- ------- ------- ----------
                                       (IN MILLIONS, EXCEPT PER SHARE DATA)
<S>                                <C>        <C>     <C>     <C>     <C>
INTEREST INCOME
Interest and fees on loans.......   $  2,019    1,986   1,953   1,896    1,889
Interest and dividends on
 securities available for sale...        230      236     258     336      274
Interest and dividends on
 investment securities
  Taxable income.................         30       32      31      33       34
  Nontaxable income..............         15       15      16      19       20
Trading account interest.........         49       72      87      67       44
Other interest income............         75       94      78      80       78
    Total interest income........      2,418    2,435   2,423   2,431    2,339
INTEREST EXPENSE
Interest on deposits.............        743      751     734     729      746
Interest on short-term
 borrowings......................        264      308     301     320      268
Interest on long-term debt.......        124      121     123     118      113
    Total interest expense.......      1,131    1,180   1,158   1,167    1,127
Net interest income..............      1,287    1,255   1,265   1,264    1,212
Provision for loan losses........        145      120     105      80       70
Net interest income after
 provision for loan losses.......      1,142    1,135   1,160   1,184    1,142
NONINTEREST INCOME
Trading account profits..........         26       50      23       8       21
Service charges on deposit
 accounts........................        193      174     165     166      161
Mortgage banking income..........         50       40      38      40       37
Capital management income........        203      157     145     138      126
Securities available for sale
 transactions....................          4       11       2       3       15
Investment security transactions.        --         1     --        2        1
Fees for other banking services..         41       39      41      44       33
Sundry income....................        236      213     186     145      132
    Total noninterest income.....        753      685     600     546      526
NONINTEREST EXPENSE
Salaries.........................        480      490     454     425      412
Other benefits...................        125      102      99     101      113
Personnel expense................        605      592     553     526      525
Occupancy........................         91       93      82      83       93
Equipment........................        121      118     108      98       93
Advertising......................         22       10      10      10       11
Telecommunications...............         27       25      27      25       25
Travel...........................         21       20      23      27       22
Postage, printing and supplies...         41       37      43      40       42
FDIC assessment..................          5       --      15      14       12
Professional fees................         20       30      23      29        6
External data processing.........         15       16      24      38       36
Other intangibles amortization...         67       60      60      61       62
Merger-related restructuring
 charges.........................        --       --      --      --       281
SAIF special assessment..........        --       --      133     --       --
Sundry expense...................        134      112     110     101       84
                                    --------  ------- ------- -------  -------
    Total noninterest expense....      1,169    1,113   1,211   1,052    1,292
Income before income taxes.......        726      707     549     678      376
Income taxes.....................        255      247     192     239      133
                                    --------  ------- ------- -------  -------
    Net income...................        471      460     357     439      243
Dividends on preferred stock.....        --         1       1       3        4
                                    --------  ------- ------- -------  -------
    Net income applicable to
     common stockholders.........   $    471      459     356     436      239
PER COMMON SHARE DATA
Net income.......................   $   1.67     1.66    1.29    1.55     0.85
Cash dividends...................   $   0.58     0.58    0.58    0.52     0.52
AVERAGE COMMON SHARES (In
 thousands)......................    282,553  278,298 274,001 282,576  280,374
</TABLE>
 


© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission