CORNING CLINICAL LABORATORIES INC
10-12B/A, 1996-11-06
COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH
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                      SECURITIES AND EXCHANGE COMMISSION 

                            Washington, D.C. 20549 

   
                                  Form 10/A 
                          Amendment No. 1 to Form 10 
    


                 General Form For Registration of Securities 
                     Pursuant to Section 12(b) or (g) of 
                     the Securities Exchange Act of 1934 

                      CORNING CLINICAL LABORATORIES INC. 
            (Exact name of registrant as specified in its charter) 

<TABLE>
<CAPTION>
<S>                                              <C>
 Delaware                                             16-1387862 
 ----------------------------------------         ------------------------- 
(State or other jurisdiction of                      (I.R.S. Employer 
  incorporation or organization)                    Identification No.) 

     One Malcolm Avenue 
    Teterboro, New Jersey                                  07608 
 ----------------------------------------         ------------------------- 
(Address of principal executive offices)                (Zip Code) 
</TABLE>
 
                                  201 393 5000
                                  -------------
              (Registrant's telephone number, including area code)


Securities to be registered pursuant to Section 12(b) of the Act: 

<TABLE>
<CAPTION>
 <S>                                     <C>
 Title of each class                     Name of each exchange on which 
  to be so registered                    each class is to be registered 

 Common Stock, with attached Preferred       New York Stock Exchange 
         Stock Purchase Right 
</TABLE>

Securities to be registered pursuant to Section 12(g) of the Act: 

                                     None 
- --------------------------------------------------------------------------------
                               (Title of class) 

                                       1

<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 

INTRODUCTION 

   
   This Registration Statement on Form 10 relates to the registration under 
the Securities Exchange Act of 1934, as amended, of the common stock, with 
attached Preferred Stock Purchase Right, of the Registrant which is being 
issued as described in the Information Statement, subject to completion or 
amendment (the "Information Statement"), dated November 5, 1996, of Corning 
Incorporated. Selected pages of the Information Statement which are related 
to the Registrant and the securities being registered hereunder (the "CCL 
Information") are attached hereto as Exhibit 99.1 and are incorporated herein 
by reference in answer to the items of this Registration Statement set forth 
below. 
    


Item 1. Business 

   
   The information required by this item is contained under the sections" 
Risk Factors--Risks Relating to CCL," "Business of CCL" and "The Relationship 
Among Corning, CCL and Covance After the Distributions" of the CCL 
Information and such sections are incorporated herein by reference. 
    


Item 2. Financial Information 

   The information required by this item is contained under the sections 
"Capitalization of CCL," "Pro Forma Financial Information of CCL," "Selected 
Historical Financial Data of CCL" and "Management's Discussion and Analysis 
of Financial Condition and Results of Operations of CCL" of the CCL 
Information and such sections are incorporated herein by reference. 

Item 3. Properties 

   The information required by this item is contained under the section 
"Business of CCL--Properties" of the CCL Information and such section is 
incorporated herein by reference. 

Item 4. Security Ownership of Certain Beneficial Owners and Management 

   The information required by this item is contained under the section 
"Security Ownership of Certain Beneficial Owners and Management of CCL" of 
the CCL Information and such section is incorporated herein by reference. 

Item 5. Directors and Executive Officers 

   The information required by this item is contained under the section 
"Management of CCL" of the CCL Information and such section is incorporated 
herein by reference. 

Item 6. Executive Compensation 

   The information required by this item is contained under the section 
"Management of CCL" of the CCL Information and such section is incorporated 
herein by reference. 

Item 7. Certain Relationships and Related Transactions 

   The information required by this item is contained under the section 
"Management of CCL" of the CCL Information and such section is incorporated 
herein by reference. 

Item 8. Legal Proceedings 

   
   The information required by this item is contained under the sections 
"Business of CCL--OIG Investigations and Related Claims" and "--Legal 
Proceedings" of the CCL Information and such sections are incorporated herein 
by reference. 
    


                                      2 
<PAGE> 

Item 9. Market Price of and Dividends on the Registrant's Common Equity and 
        RelatedStockholder Matters 

   
   The information required by this item is contained under the sections 
"Risk Factors--Risks Relating to CCL-- Absence of Dividends; Restrictions 
Imposed on Dividends by the Indenture and the CCL Credit Facility," "Risk 
Factors--Risks Relating to CCL--Absence of Prior Public Market," "Risk 
Factors--Risks Relating to CCL-- Potential Volatility of Stock Price," 
"Description of CCL Capital Stock--CCL Common Stock--Dividend Policy," "--CCL 
Common Stock--Listing and Trading" and "Management of CCL" of the CCL 
Information and such sections are incorporated herein by reference. 
    


Item 10. Recent Sales of Unregistered Securities 

   Not applicable. 

Item 11. Description of Registrant's Securities to be Registered 

   The information required by this item is contained under the sections 
"Description of CCL Capital Stock" and "Antitakeover Effects of Certain 
Provisions of the CCL Certificate of Incorporation and By-Laws" of the CCL 
Information and such sections are incorporated herein by reference. 

Item 12. Indemnification of Directors and Officers 

   The information required by this item is contained under the section 
"Liability and Indemnification of Directors and Officers of CCL" of the CCL 
Information and such section is incorporated herein by reference. 

Item 13. Financial Statements and Supplementary Data 

   The information required by this item is contained under the sections 
"Capitalization of CCL," "Pro Forma Financial Information of CCL," "Selected 
Historical Financial Data of CCL," "Management's Discussion and Analysis of 
Financial Condition and Results of Operations of CCL" and "Financial 
Statements of Corning Clinical Laboratories Inc." of the CCL Information and 
such sections are incorporated herein by reference. 

Item 14. Changes in and Disagreements with Accountants on Accounting and 
Financial Disclosure 

   Not applicable. 

Item 15. Financial Statements and Exhibits 

   (a) Financial Statements 

   The information required by this item is contained under the section 
"Financial Statements of Corning Clinical Laboratories Inc." of the CCL 
Information and such section is incorporated herein by reference. 

   (b) Exhibits 

                                      3 
<PAGE> 

<TABLE>
<CAPTION>
Exhibit 
Number                                      Description 
- --------  ---------------------------------------------------------------------------------- 
<S>       <C>
2.1*      Form of Transaction Agreement among Corning Incorporated, Corning Life Sciences Inc., 
          Corning Clinical Laboratories Inc. and Covance Inc., dated [      ], 1996 
3.1*      Certificate of Incorporation of the Registrant 
3.2*      By-Laws of the Registrant 
4.1*      Form of Common Stock certificate 
4.2*      Form of Rights Agreement between Corning Clinical Laboratories Inc. and [      ], dated 
          [      ], 1996 
10.1*     Form of Tax Sharing Agreement among Corning Incorporated, Corning Clinical Laboratories 
          Inc. and Covance Inc., dated [      ], 1996 
10.2*     Form of Spin-Off Tax Indemnification Agreement between Corning Incorporated and Corning 
          Clinical Laboratories Inc. dated [      ], 1996 
10.3*     Form of Spin-Off Tax Indemnification Agreement between Corning Clinical Laboratories 
          Inc. and Covance, Inc. dated [      ], 1996 
10.4*     Form of Credit Agreement among Corning Clinical Laboratories Inc., Morgan Guaranty Trust 
          Company of New York, Nationsbank, N.A. and Wachovia Bank of Georgia, N.A., dated [        ], 
          1996 
10.5*     Form of Spin-Off Tax Indemnification Agreement between Covance Inc. and Corning Clinical 
          Laboratories Inc., dated [           ], 1996 
10.6*     Form of Corning Clinical Laboratories Inc. Employee Stock Purchase Plan 
10.7*     Form of Corning Clinical Laboratories Inc. Variable Compensation Plan 
10.8*     Form of Corning Clinical Laboratories Inc. Profit Sharing Plan 
10.9*     Form of Corning Clinical Laboratories Inc. Employee Equity Participation Program 
10.10*    Form of Corning Clinical Laboratories Inc. Executive Retirement Supplemental Plan 
10.11*    Form of Corning Clinical Laboritories Inc. Directors' Restricted Stock Plan 
21*       Subsidiaries of the Registrant 
27*       Financial Data Schedules 
99.1      Selected pages of the Information Statement, subject to completion or amendment, of 
          Corning Incorporated dated November 5, 1996 (pages 2; 28-100; F-1-F-28) 
</TABLE>

- ------------- 
* To be filed 
by amendment. 

                                      4 
<PAGE> 

                                  SIGNATURES 

   
   Pursuant to the requirements of Section 12 of the Securities Exchange Act 
of 1934, the registrant has duly caused this amendment to the registration 
statement to be signed on its behalf by the undersigned, thereunto duly 
authorized. 
    

   CORNING CLINICAL LABORATORIES INC. 

   
Dated: November 5, 1996     By: /s/ Kenneth W. Freeman 
                                -----------------------------------
                                Kenneth W. Freeman, President 
                                and Chief Executive Officer 
    


                                      5 


                              TABLE OF CONTENTS 

<TABLE>
<CAPTION>
                                                                              Page 
                                                                             ------- 
<S>                                                                          <C>
THE RELATIONSHIP AMONG CORNING, CCL AND COVANCE AFTER THE DISTRIBUTIONS         28 
CORNING CLINICAL LABORATORIES INC. 
RISK FACTORS                                                                    31 
CAPITALIZATION OF CCL                                                           36 
SELECTED HISTORICAL FINANCIAL DATA OF CCL                                       37 
PRO FORMA FINANCIAL INFORMATION OF CCL                                          41 
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS  OF 
  OPERATIONS OF CCL                                                             48 
BUSINESS OF CCL                                                                 56 
MANAGEMENT OF CCL                                                               77 
SECURITY OWNERSHIP BY CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF CCL           88 
DESCRIPTION OF CCL CAPITAL STOCK                                                89 
ANTITAKEOVER EFFECTS OF CERTAIN PROVISIONS OF THE CCL CERTIFICATE OF 
   INCORPORATION AND BY-LAWS                                                    95 
DESCRIPTION OF CERTAIN INDEBTEDNESS OF CCL                                      99 
LIABILITY AND INDEMNIFICATION OF DIRECTORS AND OFFICERS OF CCL                 100 
LIABILITY AND INDEMNIFICATION OF DIRECTORS AND OFFICERS OF Covance             161 
AVAILABLE INFORMATION                                                          162 
INDEX TO FINANCIAL STATEMENTS                                                  F-1 
</TABLE>

<PAGE> 

   
               THE RELATIONSHIP AMONG CORNING, CCL AND COVANCE 
                           AFTER THE DISTRIBUTIONS 
    

   
   After the Distributions, Corning Clinical Laboratories Inc. ("CCL") and 
Covance Inc. ("Covance") will be independent public companies and Corning 
Incorporated ("Corning") will not have any ownership interest in either CCL 
or Covance other than shares of CCL's nonvoting cumulative preferred stock. 
Corning, CCL and Covance will enter into certain agreements, summarized 
below, to provide for an orderly transition to the status of three separate 
independent companies, to govern their relationship subsequent to the 
Distributions and to provide for the allocation of tax and certain other 
liabilities and obligations arising from periods prior to the Distributions. 
Copies of the forms of such agreements are filed as exhibits to the 
Registration Statements of which this Information Statement is a part. The 
following description summarizes the material terms of such agreements, but 
is qualified by reference to the texts of such agreements as filed. 
    


Transaction Agreement 

   
   Corning, CCL and Covance will enter into the Transaction Agreement (the 
"Transaction Agreement") providing for, among other things, certain 
conditions precedent to the Distributions, certain corporate transactions 
required to effect the Distributions and other arrangements between Corning, 
CCL and Covance subsequent to the Distributions. See "The 
Distributions--Conditions; Termination." 
    

   
   The Transaction Agreement will provide for, among other things, 
assumptions of liabilities and cross- indemnities designed to allocate 
generally, effective as of the Distribution Date, financial responsibility 
for the liabilities arising out of or in connection with (i) the clinical 
laboratory business to CCL and its subsidiaries, (ii) the contract research 
business to Covance and its subsidiaries and (iii) all other business 
conducted by Corning prior to the Distribution Date to Corning and its 
subsidiaries other than CCL and Covance. 
    

   
   The Transaction Agreement will provide that Corning, CCL and Covance will 
use their respective commercially reasonable efforts to achieve an allocation 
of consolidated indebtedness of Corning and a capital structure that reflects 
the capital structure after the Distributions of Corning, CCL and Covance as 
contemplated in the discussion under "Capitalization of CCL" and 
"Capitalization of Covance." Each of Corning, CCL and Covance will agree to 
indemnify the other parties to the Transaction Agreement in connection with 
losses that may result from certain liabilities or the breach of any 
provision of the Transaction Agreement. 
    

   
   As discussed under "Business of CCL--OIG Investigations and Related 
Claims," CCL is subject to several governmental investigations. Any amounts 
paid by CCL to settle these investigations, or as a result of a judgment 
relating to these investigations, will be indemnified by Corning under the 
Transaction Agreement. Under the Transaction Agreement Corning will agree to 
indemnify CCL against all monetary penalties, fines or settlements arising 
out of any governmental criminal, civil or administrative investigations or 
claims that are pending as of the Distribution Date to the extent that such 
investigations or claims arise out of or are related to alleged violations of 
federal laws by reason of CCL or any company acquired by CCL billing any 
federal program or agency for services rendered to beneficiaries of such 
program or agency. Corning will also indemnify CCL for 50% of the aggregate 
of all judgment or settlement payments made by CCL that are in excess of 
$42.0 million in respect of claims by nongovernmental parties (including, 
without limitation, private insurers) alleging overbillings by CCL or any 
existing subsidiaries of CCL for services provided prior to the Distribution 
Date; provided, however, such indemnification for nongovernmental claims will 
terminate five years after the Distribution Date and will not exceed $25.0 
million in the aggregate. CCL's aggregate reserve with respect to all 
governmental and nongovernmental claims, including litigation costs, was $215 
million at September 30, 1996 and is estimated to be $85 million at the 
Distribution Date. 
    

   
   Corning will not indemnify CCL against any governmental claims that arise 
after the Distribution Date, even though relating to events prior to the 
Distribution Date, or to any nongovernmental claims that do not relate to 
alleged overbillings prior to the Distribution Date. Corning will not 
indemnify CCL against consequential or incidental damages relating to the 
billing claims, including losses of revenues and profits as a consequence of 
any exclusion from participation in federal or state health care programs or 
the fees and expenses of the litigation, including attorneys' fees and 
expenses. All amounts indemnified against by Corning for the benefit of CCL 
will be calculated on a net after-tax basis by taking into account deductions 
and, if any, other tax benefits in respect of the underlying settlement or 
judgment payment or other loss that gives rise to the indemnification 
obligation of Corning, which deductions or other tax benefits are or would be 
available to CCL or other indemnitee or the consolidated tax group 
    

                                       28
<PAGE> 

   
of which CCL is a member and by assuming such deductions or other tax 
benefits can be utilized by CCL or such group, as the case may be, in the tax 
period in which the underlying payment or other loss occurs to reduce taxes 
at the highest marginal corporate tax rate applicable for the period in which 
such payment or loss occurred. 
    

   The Transaction Agreement will also provide that, except as otherwise set 
forth therein or in any other agreement, all costs or expenses incurred on or 
prior to the Distribution Date in connection with the Distributions will be 
allocated among the parties. Except as set forth in the Transaction Agreement 
or any related agreement, each party shall bear its own costs and expenses 
incurred after the Distribution Date. 

Spin-Off Tax Indemnification Agreements 

   
   Corning and CCL will enter into a tax indemnification agreement (the 
"Corning/CCL Spin-Off Tax Indemnification Agreement") pursuant to which (1) 
CCL will represent to Corning that, to the best of its knowledge, the 
materials relating to CCL submitted to the Internal Revenue Service ("IRS") 
in connection with the request for ruling submitted to the IRS are complete 
and accurate in all material respects, (2) CCL will represent that it has no 
present intention to undertake the transactions described in part (3)(iii) 
hereafter or cease to engage in the active conduct of providing clinical 
laboratory testing services, (3) CCL will covenant and agree that for a 
period of two years following the Distribution Date (the "Restricted 
Period"), (i) CCL will continue to engage in the clinical laboratory testing 
business, (ii) CCL will continue to manage and own at least 50% of the assets 
which it owns directly and indirectly immediately after the Distribution Date 
and (iii) neither CCL, nor any related corporation nor any of their 
respective directors, officers or other representatives will undertake, 
authorize, approve, recommend, permit, facilitate, or enter into any 
contract, or consummate any transaction with respect to: (A) the issuance of 
CCL Common Stock (including options and other instruments convertible into 
CCL Common Stock) which would exceed fifty percent (50%) of the outstanding 
shares of CCL Common Stock immediately after the Distribution Date; (B) the 
issuance of any other instrument that would constitute equity for federal tax 
purposes ("Disqualified CCL Stock"); (C) the issuance of options and other 
instruments convertible into Disqualified CCL Stock; (D) any repurchases of 
CCL Common Stock, unless such repurchases satisfy certain requirements; (E) 
the dissolution, merger, or complete or partial liquidation of CCL or any 
announcement of such action; or (F) the waiver, amendment, termination or 
modification of any provision of the CCL Rights Plan (as defined therein) in 
connection with, or in order to permit or facilitate, any acquisition of CCL 
Common Stock or other equity interest in CCL, and (4) CCL will agree to 
indemnify Corning for Taxes (as defined below) arising from violations of 
(1), (2) or (3) above and for Taxes arising as a result of an acquisition of 
20% or more of the stock of CCL by a person or related persons during the 
Restricted Period. If obligations of CCL under this agreement were breached 
and as a result thereof one or both of the Distributions do not qualify for 
the treatment stated in the ruling Corning requested from the IRS (the "IRS 
Ruling"), CCL would be required to indemnify Corning for Taxes imposed and 
such indemnification obligations could exceed the net asset value of CCL at 
such time. 
    

   
   Corning and Covance will enter into a tax indemnification agreement (the 
"Corning/Covance Spin-Off Tax Indemnification Agreement") pursuant to which 
(1) Covance will represent to Corning that to the best of its knowledge, the 
materials relating to Covance submitted to the IRS in connection with the 
request for ruling submitted to the IRS are complete and accurate in all 
material respects, (2) Covance will represent that it has no present 
intention to undertake the transactions described in part (3)(iii) hereafter 
or to cease to engage in the active conduct of providing contract research 
services, (3) Covance will covenant and agree that during the Restricted 
Period, (i) Covance will continue to engage in the contract research 
business, (ii) Covance will continue to manage and own at least 50% of the 
assets which it owns directly and indirectly immediately after the 
Distribution Date and (iii) neither Covance, nor any related corporations nor 
any of their respective directors, officers or other representatives will 
undertake, authorize, approve, recommend, permit, facilitate, or enter into 
any contract, or consummate any transaction with respect to: (A) the issuance 
of Covance Common Stock (including options and other instruments convertible 
into Covance Common Stock) which would exceed fifty percent (50%) of the 
outstanding shares of Covance Common Stock immediately after the Distribution 
Date; (B) the issuance of any other instrument that would constitute equity 
for federal tax purposes ("Disqualified Covance Stock"); (C) the issuance of 
options and other instruments convertible into Disqualified Covance Stock; 
(D) any repurchases of Covance Common Stock, unless such repurchases satisfy 
certain requirements; (E) the dissolution, merger, or complete or partial 
liquidation of Covance or any announcement of such action; or (F) the waiver, 
amendment, termination or modification of any provision of the Covance Rights 
Plan (as defined therein) in connection with, or in order to permit or 
facilitate, any acquisition of Covance Common Stock or other equity interest 
in Covance and (4) Covance will agree to indemnify Corning for Taxes arising 
from violations of (1), (2) or (3) above and for Taxes arising 
    

                                       29
<PAGE> 

   
as a result of an acquisition of 20% or more of the stock of Covance by a 
person or related persons during the Restricted Period. If obligations of 
Covance under this agreement were breached and as a result thereof one or 
both of the Distributions do not qualify for the treatment stated in the IRS 
Ruling, Covance would be required to indemnify Corning for Taxes imposed and 
such indemnification obligations could exceed the net asset value of Covance 
at such time. 
    

   
   CCL and Covance will enter into a tax indemnification agreement (the 
"CCL/Covance Spin-Off Tax Indemnification Agreement") which will be 
essentially the same as the Corning/Covance Spin-Off Tax Indemnification 
Agreement except that Covance will make representations to and indemnify CCL 
as opposed to Corning. If obligations of Covance under this agreement were 
breached and as a result thereof one or both of the Distributions do not 
qualify for the treatment stated in the IRS Ruling, Covance would be required 
to indemnify CCL for Taxes imposed and such indemnification obligations could 
exceed the net asset value of Covance at such time. CCL and Covance will 
enter into a second tax indemnification agreement (the "Covance/CCL Spin-Off 
Tax Indemnification Agreement") which will be essentially the same as the 
Corning/CCL Spin-Off Tax Indemnification Agreement except that CCL will make 
representations to and indemnify Covance as opposed to Corning. If 
obligations of CCL under this agreement were breached and as a result thereof 
one or both of the Distributions do not qualify for the treatment stated in 
the IRS Ruling, CCL would be required to indemnify Covance for Taxes imposed 
and such indemnification obligations could exceed the net asset value of CCL 
at such time. 
    

   
   The Spin-Off Tax Indemnification Agreements will also require (i) CCL to 
take such actions as Corning may reasonably request and (ii) Covance to take 
such actions as Corning and CCL may reasonably request to preserve the 
favorable tax treatment provided for in any rulings obtained from the IRS in 
respect of the Distributions. 
    


Tax Sharing Agreement 

   
   Corning, CCL and Covance will enter into a tax sharing agreement (the "Tax 
Sharing Agreement") which will allocate responsibility for federal income and 
various other taxes ("Taxes") among the three companies. The Tax Sharing 
Agreement provides that, except for Taxes arising as a result of the failure 
of either or both of the Distributions to qualify for the treatment stated in 
the IRS Ruling (which Taxes are allocated either pursuant to the Spin-Off Tax 
Indemnification Agreements or as described below), Corning is liable for and 
will pay the federal income taxes of the consolidated group that includes CCL 
and Covance and their subsidiaries, provided, however, that CCL and Covance 
are required to reimburse Corning for taxes for periods beginning after 
December 31, 1995 in which they are members of the Corning consolidated group 
and for which tax returns have not been filed as of the Distribution Date. 
This reimbursement obligation is based on the hypothetical separate federal 
tax liability of CCL and Covance, including their respective subsidiaries, 
calculated on a separate consolidated basis, subject to certain adjustments. 
Under the Tax Sharing Agreement, in the case of adjustments by a taxing 
authority of a consolidated federal income tax or certain other tax returns 
prepared by Corning which includes CCL or Covance, then, subject to certain 
exceptions, Corning is liable for and will pay any tax assessments, and is 
entitled to any tax refunds, resulting from such audit. 
    

   
   The Tax Sharing Agreement further provides that, if either of the 
Distributions fails to qualify for the tax treatment stated in the IRS Ruling 
(for reasons other than those indemnified against under one or more of the 
Spin- Off Tax Indemnification Agreements), Taxes imposed upon or incurred by 
Corning, CCL or Covance as a result of such failure are to be allocated among 
Corning, CCL and Covance in such a manner as will take into account the 
extent to which the actions or inactions of each may have contributed to such 
failure, and Corning, CCL and Covance each will indemnify and hold harmless 
the other from and against the taxes so allocated. If it is determined that 
none of the companies contributed to the failure of such distribution to 
qualify for the tax treatment stated in the IRS Ruling, the liability for 
taxes will be borne by each in proportion to its relative average market 
capitalization as determined by the average closing price for the common 
stock of each during the 20 trading-day period immediately following the 
Distribution Date. In the event that either of the Distributions fails to 
qualify for the tax treatment stated in the IRS Ruling and the liability for 
taxes as a result of such failure is allocated among Corning, CCL and 
Covance, the liability so allocated to CCL or Covance could exceed the net 
asset value of CCL or Covance, respectively. 
    

   
Nonvoting Cumulative Preferred Stock of CCL 
    

   
   After the Distributions, Corning will retain 1,000 shares of CCL's 
nonvoting cumulative preferred stock, with an aggregate liquidation 
preference of $1.0 million. Corning is the sole holder of such shares. For a 
description of the terms of the CCL nonvoting cumulative preferred stock, see 
"Description of CCL Capital Stock--CCL Nonvoting Cumulative Preferred Stock." 
    

                                       30
<PAGE> 

   
                        CORNING CLINICAL LABORATORIES INC. 
    


                                 RISK FACTORS 

   Corning shareholders should be aware that the Distributions and ownership 
of the CCL Common Stock involve certain risks, including those described 
below, which could adversely affect the value of their holdings. Neither 
Corning nor CCL makes, nor is any other person authorized to make, any 
representations as to the future market value of CCL Common Stock. 

Risks Relating to the Distributions 

   
   Effects on Corning Stock. Following the Distributions, Corning Common 
Stock will continue to be listed and traded on the NYSE and certain other 
stock exchanges. As a result of the Distributions, the trading price of 
Corning Common Stock is expected to be lower than the trading price of 
Corning Common Stock immediately prior to the Distributions. There can be no 
assurance that the combined trading prices of Corning Common Stock, CCL 
Common Stock and Covance Common Stock after the Distributions will be equal 
to or greater than the trading price of Corning Common Stock prior to the 
Distributions. 
    


Risks Relating to CCL 

   Financial Impact of the Distributions on CCL. While CCL has a substantial 
operating history, it has not operated as an independent company since 1982. 
As a Corning subsidiary, CCL's working capital requirements have been 
financed by Corning and CCL's major acquisitions have been financed through 
the issuance of Corning common stock and borrowings from Corning. Subsequent 
to the Distributions, CCL's activities will no longer be financed by Corning. 
In addition, it is anticipated that the rating of CCL's long-term debt will 
be non-investment grade. This may impact, among other things, CCL's ability 
to raise capital, fund working capital requirements or expand, through 
acquisitions or otherwise, and could thereby have an adverse effect on CCL's 
operating earnings and cash flow. 

   
   Substantial Leverage and Debt Service Requirements. After the 
Distributions and as a result of the incurrence of debt under the CCL Credit 
Facility (as defined below) and the issuance of Notes (as defined below) in 
the CCL Notes Offering (as defined below), CCL will have substantial debt. At 
September 30, 1996, after giving effect to the transactions and adjustments 
described in "Pro Forma Financial Information of CCL," CCL would have had 
$517 million of total debt and total capitalization of $1,120 million, on a 
pro forma basis, and CCL's total debt as a percentage of total capitalization 
would have been approximately 46%. In addition to creating significant debt 
service obligations for CCL, the terms of the CCL Credit Facility will 
contain customary affirmative and negative covenants that will, among other 
things, require CCL to maintain certain financial tests and ratios and will 
restrict CCL's ability to make asset dispositions, incur additional 
indebtedness, make certain payments and investments, transact with affiliates 
or enter into mergers or consolidate. The Indenture will include similar, but 
less restrictive, incurrence tests. 
    

   
   The degree to which CCL is leveraged could have important consequences to 
holders of CCL Common Stock, including the following: (1) CCL's ability to 
obtain additional financing in the future for working capital, capital 
expenditures, product development, acquisitions, general corporate purposes 
or other purposes may be impaired; (ii) a substantial portion of CCL's and 
its subsidiaries' cash flow from operations must be dedicated to the payment 
of the principal of and interest on its indebtedness; (iii) the CCL Credit 
Facility will contain certain restrictive financial and operating covenants, 
including, among others, requirements that CCL satisfy certain financial 
ratios; (iv) a significant portion of borrowings will be at floating rates of 
interest, causing CCL to be vulnerable to increases in interest rates; (v) 
CCL's degree of leverage may make it more vulnerable in a downturn in general 
economic conditions; and (vi) CCL's financial position may limit its 
flexibility in responding to changing business and economic conditions. In 
addition, the Notes will contain certain financial covenants. See 
"Management's Discussion and Analysis of Financial Condition and Results of 
Operations of CCL--Liquidity and Capital Resources" and "Description of 
Certain Indebtedness of CCL." 
    

   
   Intense Competition. The independent clinical laboratory industry in the 
United States is intensely competitive. CCL believes that in 1995 
approximately 56% of the revenues of the clinical laboratory testing industry 
was generated by hospital-affiliated laboratories, approximately 36% by 
independent clinical laboratories and 8% by thousands of individual 
physicians in their offices and laboratories. Independent clinical 
laboratories fall into two 
    

                                       31
<PAGE> 

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 CCL that provide a 
broader range of tests and services. CCL has two major competitors that 
operate in the national market--SmithKline Beecham Clinical Laboratories, 
Inc. ("SmithKline") and Laboratory Corporation of America Holdings, Inc. 
("LabCorp"). Both SmithKline and LabCorp are affiliated with larger 
corporations that have greater financial resources than CCL. There are also 
many independent clinical laboratories that operate regionally and that 
compete with CCL in these regions. In addition, hospitals are in general both 
competitors and customers of independent clinical laboratories. The 
independent clinical laboratory testing industry has experienced intense 
price competition over the past several years, which has negatively impacted 
CCL's profitability. 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. See "Business of CCL--The Clinical 
Laboratory Testing Industry" and "Business of CCL--Competition." 

   
   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 
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-service 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. See "Business of 
CCL--Customers and Payors" and "Business of CCL--Effect of the Growth of the 
Managed Care Sector on the Clinical Laboratory Business." During the nine 
months ended September 30, 1996, services to managed care organizations under 
capitated rate agreements accounted for approximately 6% of CCL's net 
revenues from clinical laboratory testing and approximately 15% of the tests 
performed by CCL. CCL is currently reviewing its pricing structures for 
agreements with managed care organizations and intends to insure that all of 
its future agreements with managed care organizations are profitably priced. 
However, there can be no assurance that CCL will be able to increase the 
prices charged to managed care organizations or that CCL will not lose market 
share in the managed care market to other clinical laboratories who continue 
to aggressively price laboratory services agreements with managed care 
organizations. CCL may experience declines in per-test revenue as managed 
care organizations continue to increase their share of the health care 
insurance market. 
    

   
   Reliance on Medicare/Medicaid Reimbursements. Approximately 23% and 22% of 
CCL's net revenues for the year ended December 31, 1995 and the nine months 
ended September 30, 1996, respectively, were attributable to tests performed 
for Medicare and Medicaid beneficiaries. CCL's business and financial results 
depend substantially on reimbursements paid to CCL under these programs. CCL 
is legally required to accept the government's reimbursement for most 
Medicare and Medicaid testing as payment in full. Such reimbursements are 
generally made pursuant to fee schedules, which are subject to certain 
limitations the levels of which have declined steadily since late 1984. 
Congress enacted a phased-in set of reductions in the reimbursement 
limitations as part of its 1993 budget legislation that reduced the Medicare 
national limitations in 1994 to 84% of the 1984 national median, in 1995 to 
80% of the 1984 national median and in 1996 to 76% of the 1984 national 
median. In 1995, both houses of Congress passed a bill (the Medicare 
Preservation Act) that would have reduced the fee cap schedule from 75% to 
65% of the 1984 national median, but the bill was vetoed by the President. 
Effective January 1, 1996, the Health Care Financing Administration ("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. An 
additional allowance of $0.50 per test is authorized when more than 19 tests 
are billed in a panel. 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 
    

                                       32
<PAGE> 

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 many commonly ordered tests. CCL expects 
to incur additional reimbursement reductions and additional costs associated 
with the implementation of these requirements of HCFA and Medicare carriers. 
The amount of the reductions in reimbursements and additional costs cannot be 
determined at this time. These and other proposed changes affecting the 
reimbursement policy of Medicare and Medicaid programs could have a material 
adverse effect on the business, financial condition, results of operations or 
prospects of CCL. See "Business of CCL-- Regulation and 
Reimbursement--Regulation of Reimbursement for Clinical Laboratory Services." 
A failure of CCL to properly and promptly process its bills to Medicare may 
result in an increase in CCL's bad debt expense. See "Business of 
CCL--Billing" and "Management's Discussion and Analysis of Financial 
Condition and Results of Operations of CCL--Results of Operations." 

   Government Regulation. The clinical laboratory industry is subject to 
extensive governmental regulations at the federal, state and local levels. 
See "Business of CCL--Regulation and Reimbursement." 

   At the federal level, CCL's laboratories are required to be certified 
under the Clinical Laboratory Improvement Amendments of 1988 ("CLIA") and 
approved to participate in the Medicare/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 CCL and would more likely encourage physicians to establish 
laboratories in their offices. 

   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, civil and criminal penalties. 
Civil penalties for a wide range of offenses may be up to $2,000 per item and 
twice the amount claimed. These penalties will be increased effective January 
1, 1997 to 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 Office of the Inspector 
General ("OIG") of the Department of Health and Human Services ("HHS") 
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. See "Business of 
CCL--Regulation and Reimbursement." 

   
   Government Investigations and Related Claims. As discussed under "CCL 
Business--OIG Investigations and Related Actions," CCL has settled various 
governmental and private litigations relating primarily to industry- wide 
billing and marketing practices that had been discontinued by late 1992. 
Specifically, CCL has settled seven claims by the Office of the Inspector 
General ("OIG") of the Department of Health and Human Services ("HHS") and 
the Department of Justice ("DOJ") with respect to Medicare and Medicaid 
marketing and billing practices of CCL and certain companies acquired by CCL 
prior to their acquisition and thirteen related private actions. There are, 
however, pending several investigations by the OIG and DOJ, into marketing 
and billing practices at Nichols prior to its acquisition by CCL. At present 
there are no settlement discussions pending between DOJ and CCL regarding 
these investigations, and it is too early to predict which tests, time 
periods and locations the government may challenge. Remedies available to the 
government include exclusion from participation in Medicare and Medicaid, 
criminal fines, civil recoveries plus civil penalties and asset forfeitures. 
Application of such remedies and penalties could materially and adversely 
affect CCL's business, financial condition, results of operations and 
prospects. 
    

   
   As discussed under "The Relationship Among Corning, CCL and Covance After 
the Distributions-- Transaction Agreement," Corning will agree to indemnify 
CCL against these governmental claims and up to $25.0 million, on an 
after-tax basis, of nongovernmental claims in excess of $42.0 million that 
relate to billings prior to the Distribution Date. However, such 
indemnification will not cover (i) any governmental claims that arise after 
the Distribution Date, (ii) any nongovernmental claims not settled prior to 
five years after the Distribution Date, 
    

                                       33
<PAGE> 

   
(iii) any consequential or incidental damages relating to the billing claims, 
including losses of revenues and profits as a consequence of exclusion for 
participation in federal or state health care programs or (iv) the fees and 
expenses of litigation. 
    

   
   Although management believes that established reserves for both 
indemnified and non-indemnified claims are sufficient, it is possible that 
additional information may become available which may cause the final 
resolution of these matters to exceed the established reserves by an amount 
which could be material to CCL's results of operations and, for 
non-indemnified claims, CCL's cash flows in the period in which such claims 
are settled. CCL does not believe that these matters will have a material 
adverse effect on CCL's overall financial condition. 
    

   
   Recent Losses. CCL incurred net losses of $52 million for the year ended 
December 31, 1995 and $158.9 million for the nine months ended September 30, 
1996. The 1995 loss includes the provision of $33 million for restructuring 
charges (primarily relating to workforce reduction programs and the cost of 
exiting a number of leased facilities) and $17.6 million of special charges 
related to settlements of governmental billing claims. The loss for the 1996 
period reflects the provision of $188 million for additional reserves 
primarily relating to the investigation of pre-acquisition billing practices 
of Damon Corporation and Nichols Institute and $13.7 million for the write 
off of the development costs of what was intended as a new company-wide 
billing system. See "Management's Discussion and Analysis of Financial 
Condition and Results of Operations of CCL." There can be no assurance that 
CCL's operations will be profitable in the future. 
    

   
   Billing. CCL's billings have been hampered by both the industry-wide 
phenomenon of frequently missing or incorrect billing information and 
increasingly stringent payor requirements, as well as the existence of 
multiple billing information systems which have resulted in large part from 
CCL's growth through acquisitions. CCL's standard billing system has been 
implemented in seven of its 22 billing sites, which seven sites account for 
35% of CCL's net revenues. CCL is beginning to convert the remaining 
non-standard billing systems to the standard SYS system. See "Business of 
CCL--Information Systems" and "Business of CCL--Billing Practices." 
Standardizing its billing systems presents conversion risk to CCL as key 
databases and masterfiles are transferred to the SYS system and because the 
billing workflow is interrupted during the conversion, which may cause 
backlogs. 
    

   
   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 CCL's client base. CCL maintains liability 
insurance (subject to maximum limits and self-insured retentions) for 
professional liability claims. This insurance does not cover liability for 
any of the investigations described under "--Government Investigations." 
While there can be no assurance, CCL management believes that the levels of 
coverage are adequate to cover currently estimated exposures. Although CCL 
believes that it will be able to obtain adequate insurance coverage in the 
future at acceptable costs, there can be no assurance that CCL will be able 
to obtain such coverage or will be able to do so at an acceptable cost or 
that CCL will not incur significant liabilities in excess of policy limits. 
    

   
   Absence of Dividends; Restrictions on Dividends Imposed by the CCL Credit 
Facility and the Indenture. It is currently contemplated that, following the 
Distributions, CCL will not pay cash dividends on the CCL Common Stock in the 
foreseeable future, but will retain earnings to provide funds for the 
operation and expansion of its business. In addition, the CCL Credit Facility 
prohibits CCL from paying cash dividends on the CCL Common Stock. Further, 
the Indenture under which the Notes will be issued will restrict CCL's 
ability to pay cash dividends based on a percentage of CCL's cash flow. See 
"Description of Certain Indebtedness of CCL" and "Description of Capital 
Stock of CCL." 
    

   
   Potential Liability under the Spin-Off Tax Indemnification Agreements. CCL 
will enter into the Corning/CCL Spin-Off Tax Indemnification Agreement that 
will prohibit CCL for a period of two years after the Distribution Date from 
taking certain actions, including a sale of 50% or more of the assets of CCL 
or engaging in certain equity or financing transactions, that might 
jeopardize the favorable tax treatment of the Distributions under Code 
section 355 and will provide Corning with certain rights of indemnification 
against CCL. The Corning/CCL Spin-Off Tax Indemnification Agreement will also 
require CCL to take such actions as Corning may reasonably request to 
preserve the favorable tax treatment provided for in any rulings obtained 
from the IRS in respect of the Distributions. CCL and Covance will enter into 
the Covance/CCL Spin-Off Tax Indemnification Agreement, that will be 
essentially the same as the Corning/CCL Spin-Off Tax Indemnification except 
that CCL will make representations to and 
    

                                       34
<PAGE> 

   
indemnify Covance as opposed to Corning. If obligations of CCL under either 
agreement were breached and primarily as a result thereof the Distributions 
do not receive favorable tax treatment under Code section 355, CCL would be 
required to indemnify Corning or Covance, as the case may be, for Taxes 
imposed and such indemnification obligations could exceed the net asset value 
of CCL at such time. See "The Relationship Among Corning, CCL and Covance 
After the Distributions--Spin-Off Tax Indemnification Agreements." 
    

   Absence of a Prior Public Market. Prior to the Distributions, there has 
been no public market for the CCL Common Stock. Although it is expected that 
the CCL Common Stock will be approved for listing on the NYSE, there is no 
existing market for the CCL Common Stock and there can be no assurance as to 
the liquidity of any markets that may develop, the ability of CCL 
stockholders to sell their shares of CCL Common Stock or at what price CCL 
stockholders will be able to sell their shares of CCL Common Stock. Future 
trading prices will depend on many factors including, among other things, 
prevailing interest rates, CCL's operating results and the market for similar 
securities. 

   Potential Volatility of Stock Price. The market price of CCL Common Stock 
could be subject to wide fluctuations in response to seasonal variations in 
operating results, changes in earnings estimates by analysts, market 
conditions in the clinical laboratory industry, prospects for health care 
reform, changes in government regulation and general economic conditions. In 
addition, the stock market has from time to time experienced significant 
price and volume fluctuations that have been unrelated to the operating 
performance of particular companies. Moreover, CCL Common Stock could be 
subject to wide fluctuations for some time after the Distributions as a 
result of heavy trading volume stemming from sales by shareholders of Corning 
Common Stock who decide not to continue owning CCL Common Stock. Certain of 
such sales may include those to be made on behalf of investment plans 
maintained for the benefit of Corning employees. These plans currently hold 
slightly less than 5% of the outstanding Corning Common Stock and, as a 
result of the Distributions, are expected to hold a similar percentage of the 
CCL Common Stock. From time to time as market conditions warrant, and as the 
administrator of the plans believes to be in the best interests of the 
employee beneficiaries, the administrator will sell all of the CCL Common 
Stock held by the plans. Such sales are expected to occur within a period of 
three years after the Distribution Date. See "Security Ownership by Certain 
Beneficial Owners and Management of CCL." These market fluctuations could 
have an adverse effect on the market price of CCL Common Stock. CCL 
stockholders should be aware, and must be willing to bear the risk, of such 
fluctuations in earnings and stock price. 

   
   Dependence on Key Employees. CCL's affairs are managed by a small number 
of key management personnel, the loss of any of whom could have an adverse 
impact on CCL. There can be no assurance that CCL can retain its key 
managerial and technical employees or that it can attract, assimilate or 
retain other skilled technical personnel in the future. See "Business of 
CCL--Recent Organizational Changes" and "Management of CCL." 
    

   
   Certain Antitakeover Effects. CCL's amended and restated certificate of 
incorporation (the "CCL Certificate") and by-laws (the "CCL By-Laws"), and 
the Delaware General Corporation Law ("DGCL"), contain several provisions 
that could have the effect of delaying, deferring or preventing a change in 
control of CCL in a transaction not approved by the board of directors of CCL 
(the "CCL Board"), or, in certain circumstances, by the disinterested members 
of the CCL Board. In addition, an acquisition of certain securities or assets 
of CCL within two years after the Distribution Date might jeopardize the tax 
treatment of the Distributions and could result in CCL being required to 
indemnify Corning and Covance. See "--Potential Liability under the Spin-Off 
Tax Indemnification Agreements" and "Antitakeover Effects of Certain 
Provisions of the CCL Certificate of Incorporation and By-Laws." 
    

                                       35
<PAGE> 

                            CAPITALIZATION OF CCL 

   
   The following table sets forth CCL's capitalization as of September 30, 
1996 giving effect to (i) the consummation of the CCL Notes Offering and the 
estimated initial borrowings under the CCL Credit Facility, (ii) the 
Distributions and (iii) the CCL Accounting Policy Change (as defined below), 
as if such transactions occurred on such date. This table should be read in 
conjunction with the CCL Financial Statements and notes thereto and the CCL 
Pro Forma Financial Information (as defined below) and notes thereto included 
elsewhere herein. Historical combined and pro forma combined financial 
information may not be indicative of CCL's future capitalization as an 
independent company. See "Management's Discussion and Analysis of Financial 
Condition and Results of Operations of CCL" and "Business of CCL." 
    

<TABLE>
<CAPTION>
   
                                                           Pro Forma 
                                          Historical      Adjustments      Pro Forma 
                                        --------------- --------------- --------------- 
                                                         (in thousands) 
<S>                                     <C>            <C>              <C>
Cash                                    $   48,319     $   (8,319)(a)   $   40,000 
                                        =============  ===============  ============ 
Short-term Debt:                                                        
 Current portion of long-term debt      $   11,885     $  (10,000)(b)   $    1,885(h) 
 Revolving credit facility                                        (c)   
                                        -------------  ---------------  ------------ 
  Total Short-term Debt                 $   11,885     $  (10,000)      $    1,885 
                                        =============  ===============  ============ 
Long-term Debt:                                                         
 Term loans                             $   15,494     $  350,000 (b)   $  365,494(h) 
 Notes                                                    150,000 (b)      150,000 
 Payable to Corning                      1,204,406         (8,319)(a)   
                                                         (447,669)(b)   
                                                         (748,418)(d)   
                                        -------------  ---------------  ------------ 
  Total Long-term Debt                   1,219,900       (704,406)         515,494 
                                        -------------  ---------------  ------------ 
Stockholder's Equity:                                                   
 Contributed capital                       297,823        748,418 (d)   
                                                           11,250 (e)   
                                                          150,000 (f)    1,207,491 
 Accumulated deficit                      (163,158)       (13,239) (e)  
                                                         (425,000) (g)    (601,397) 
 Cumulative translation adjustment.          1,801                           1,801 
 Market valuation adjustment                (3,796)                         (3,796) 
                                        -------------  ---------------  ------------ 
  Total Stockholder's Equity               132,670        471,429          604,099 
                                        -------------  ---------------  ------------ 
Total Capitalization                    $1,352,570     $ (232,977)      $1,119,593 
                                        =============  ===============  ============ 
</TABLE>                                                                
    

    --------- 

   
(a) Historically, CCL has participated in Corning's centralized treasury and 
    cash management processes. Cash received from operations was generally 
    transferred to Corning on a daily basis. Cash disbursements for 
    operations and investments were funded as needed from Corning. The cash 
    balance at the Distribution Date will range from $30 million to $40 
    million. The pro forma adjustment to cash and payable to Corning 
    represents the reduction to bring cash to the Distribution Date range. 
    

   
(b) The pro forma adjustment to current portion of long-term debt, term loans,
    Notes, and payable to Corning reflects borrowings by CCL, immediately prior
    to the CCL Spin-Off Distribution, to repay Corning for certain income tax
    liabilities and intercompany borrowings. The assumed interest rates on these
    borrowings are 7.50% and 11.50% for the CCL Credit Facility and the Notes,
    respectively.
    

   
(c) The CCL Credit Facility will include a revolving credit facility of $100 
    million which can be used to fund working capital and investment 
    activities. CCL management believes that the entire facility will be 
    available at the Distribution Date. 
    

   
(d) The pro forma adjustment to payable to Corning and contributed capital of 
    $748.4 million reflects Corning's capital contribution to CCL of the 
    estimated remaining intercompany borrowings. 
    

   
(e) The pro forma adjustment to contributed capital and accumulated deficit
    represents costs directly related to the CCL Spin-Off Distribution that CCL
    expects to record coincident with the CCL Spin-Off Distribution. These
    costs, which are estimated at $20.2 million ($13.2 million after tax),
    include approximately $9.0 million related to professional advisory and
    financing commitment fees and $11.2 million related to the establishment of
    an employee stock ownership plan. This amount is subject to change based on
    the market price of the CCL Common Stock on the Distribution Date.
    

   
(f) The pro forma adjustment to contributed capital represents the estimated 
    capital contribution related to Corning's indemnification under the 
    Transaction Agreement. See "Relationship Among Corning, CCL and Covance 
    After the Distributions--Transaction Agreement." The receivable from 
    Corning is estimated to approximate $25 million at the Distribution Date. 
    

   
(g) Coincident with the CCL Spin-Off Distribution, CCL will adopt a new 
    accounting policy for evaluating and measuring the recoverability of 
    intangible assets based on a fair value approach (the "CCL Accounting 
    Policy Change"). The pro forma adjustment to accumulated deficit 
    represents the estimated impact of the CCL Accounting Policy Change. CCL 
    management estimates the charge to reduce the carrying value of 
    intangible assets to fair value will be in the range of $400 million to 
    $450 million. The midpoint of the range has been utilized for the 
    preparation of the Unaudited Pro Forma Combined Balance Sheet. 
    

   
(h) The current portion of long-term debt and the term loans, exclusive of 
    the pro forma adjustment, consists primarily of a mortgage note payable 
    and capital lease obligations. 
    

                                       36
<PAGE> 

                  SELECTED HISTORICAL FINANCIAL DATA OF CCL 

   
   The following table presents selected historical financial data of CCL 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, 1995, 1994 and 1993 have 
been derived from the audited combined financial statements of CCL (the 
"Audited CCL Financial Statements") and the notes thereto included elsewhere 
herein. The selected financial data as of and for the three and nine months 
ended September 30, 1996 and 1995 (the "CCL Interim Financial Statements" 
and, together with the Audited CCL Financial Statements, the "CCL Financial 
Statements") and the years ended December 31, 1992 and 1991 have been derived 
from the unaudited combined financial statements of CCL. In the opinion of 
management, the unaudited combined financial statements include all 
adjustments, consisting only of normal recurring adjustments, that are 
necessary for a fair presentation of the financial position and results of 
operations for these periods. The unaudited interim results of operations for 
the three and nine months ended September 30, 1996 are not necessarily 
indicative of the results for the entire year ending December 31, 1996. 
    

   
   The selected financial data should be read in conjunction with the CCL 
Financial Statements and notes thereto, and the CCL Pro Forma Financial 
Information and notes thereto included elsewhere herein. Historical combined 
financial data may not be indicative of CCL's future performance as an 
independent company. See the CCL Financial Statements and notes thereto and 
CCL Pro Forma Financial Information. See also "Management's Discussion and 
Analysis of Financial Condition and Results of Operations of CCL" and 
"Business of CCL." 
    

                                       37
<PAGE> 

<TABLE>
<CAPTION>
                                                 Three Months Ended              Nine Months Ended 
                                                    September 30,                  September 30, 
                                          -------------------------------   ------------------------------ 
                                                 1996            1995           1996            1995 
                                          ---------------- --------------  ---------------  -------------- 
                                                       (in thousands, except percentage data) 
<S>                                          <C>              <C>            <C>             <C>
Statement of Operations Data: 
Net revenues                                 $  405,352       $  399,959     $1,231,290      $1,239,474 
Costs and expenses: 
 Cost of services                               255,390          240,868        768,809         735,984 
 Selling, general and administrative            125,190          181,346(b)     371,439         399,635(b) 
 Provision for restructuring and other 
   special charges(c)                           155,730                         201,730          45,885 
 Interest expense, net                           19,866           20,927         59,887          61,529 
 Amortization of intangible assets               10,328           11,293         31,772          33,678 
 Other, net                                       1,837            1,930           (198)          4,429 
                                          ---------------- --------------  ---------------  -------------- 
  Total                                         568,341          456,364      1,433,439       1,281,140 
                                          ---------------- --------------  ---------------  -------------- 
Income (loss) before taxes                     (162,989)         (56,405)      (202,149)        (41,666) 
Income tax expense (benefit)                    (43,553)         (17,810)       (43,280)         (3,642) 
                                          ---------------- --------------  ---------------  -------------- 
Income (loss) before cumulative effect of 
  change in accounting principle               (119,436)         (38,595)      (158,869)        (38,024) 
Cumulative effect of change in accounting 
  principle 
                                          ---------------- --------------  ---------------  -------------- 
Net income (loss)                            $ (119,436)      $  (38,595)    $ (158,869)     $  (38,024) 
                                          ================ ==============  ===============  ============== 

Balance Sheet Data (at end of period): 
 Cash                                        $   48,319       $   46,908     $   48,319      $   46,908 
 Working capital                                114,718          129,319        114,718         129,319 
 Total assets                                 1,886,378        1,896,058      1,886,378       1,896,058 
 Long-term debt                               1,219,900        1,114,367      1,219,900       1,114,367 
 Total debt                                   1,231,785        1,226,211      1,231,785       1,226,211 
 Stockholder's equity                           132,670          320,576        132,670         320,576 

Ratio of earnings to fixed charges                     (d)              (d)            (d)             (d) 

Supplemental Data: 
 EBITDA(e)                                   $ (118,123)(f)   $   (9,910)(b) $  (67,030)(f)  $   95,899(b) 
 EBITDA as a % of net revenues                    (29.1)%           (2.5)%         (5.4)%           7.7% 
 Adjusted EBITDA(g)                          $   37,607       $   (9,910)(b) $  134,700      $  141,784(b) 
 Adjusted EBITDA as a % of net  revenues            9.3%            (2.5)%         10.9%           11.4% 
</TABLE>

   
(Footnotes on page 40) 
    

                                       38
<PAGE> 

<TABLE>
<CAPTION>
                                                                 Year Ended December 31, 
                                          -------------------------------------------------------------------- 
                                               1995         1994(a)         1993          1992         1991 
                                          -------------- ------------- ------------- ------------- ----------- 
                                                         (in thousands, except percentage data) 
<S>                                         <C>            <C>           <C>           <C>           <C>
Statement of Operations Data: 
Net revenues                                $1,629,388     $1,633,699    $1,416,338    $1,228,964    $941,116 
Costs and expenses: 
 Cost of services                              980,232        969,844       805,729       657,354     553,810 
 Selling, general and administrative           523,271(b)     411,939       363,579       334,665     193,934 
 Provision for restructuring and  other 
  special charges(c)                            50,560         79,814        99,600        13,000 
 Interest expense, net                          82,016         63,295        41,898        31,775      14,205 
 Amortization of intangible assets              44,656         42,588        28,421        21,359      16,556 
 Other, net                                      6,221          3,464         6,423        16,300       6,636 
                                          -------------- ------------- ------------- ------------- ----------- 
  Total                                      1,686,956      1,570,944     1,345,650     1,074,453     785,141 
                                          -------------- ------------- ------------- ------------- ----------- 
Income (loss) before taxes                     (57,568)        62,755        70,688       154,511     155,975 
Income tax expense (benefit)                    (5,516)        34,410        25,929        52,115      52,128 
                                          -------------- ------------- ------------- ------------- ----------- 
Income (loss) before cumulative effect of 
  change in accounting principle               (52,052)        28,345        44,759       102,396     103,847 
Cumulative effect of change in accounting 
  principle                                                                 (10,562) 
                                          -------------- ------------- ------------- ------------- ----------- 
Net income (loss)                           $  (52,052)    $   28,345    $   34,197    $  102,396    $103,847 
                                          ============== ============= ============= ============= =========== 

Balance Sheet Data (at end of period): 
 Cash                                       $   36,446     $   38,719    $   39,410    $   20,528    $ 24,068 
 Working capital                               200,740        214,358       139,771       161,759     126,406 
 Total assets                                1,853,385      1,882,663     1,861,162     1,024,806     764,087 
 Long-term debt                              1,195,566      1,153,054     1,025,787       431,624     270,682 
 Total debt                                  1,207,714      1,165,626     1,123,307       474,175     287,973 
 Stockholder's equity                          295,801        386,812       395,509       408,149     291,973 

Ratio of earnings to fixed 
  charges                                             (d)        1.77(d)       2.20(d)       4.44(d)     5.83(d) 

Supplemental Data: 
 EBITDA(e)                                  $  125,961(b)  $  215,567    $  179,065    $  242,527    $213,593 
 EBITDA as a % of net revenues                     7.7%          13.2%         12.6%         19.7%       22.7% 
 Adjusted EBITDA(g)                         $  176,521(b)  $  295,381    $  278,665    $  255,527    $213,593 
 Adjusted EBITDA as a % of net  revenues          10.8%          18.1%         19.7%         20.8%       22.7% 
</TABLE>

   
(Footnotes on page 40) 
    

                                       39
<PAGE> 

   
- -------------
(Footnotes for preceding pages) 
    

   
(a) In August 1993, CCL acquired Damon, a national clinical-testing 
    laboratory with approximately $280 million in annualized revenues, 
    excluding Damon's California-based laboratories, which were sold in April 
    1994. In November 1993, CCL acquired certain clinical-testing 
    laboratories of Unilab Corporation ("Unilab"), with approximately $90 
    million in annualized revenues. The Damon and Unilab acquisitions were 
    accounted for as purchases. CCL acquired Maryland Medical Laboratory, 
    Inc. ("MML"), Nichols and Bioran Medical Laboratory ("Bioran") in June, 
    August and October 1994, respectively, and accounted for these 
    acquisitions as poolings of interest. Results presented include the 
    results of CCL, MML, Nichols and Bioran on a pooled basis. The increase 
    in 1994 net revenues compared to 1993 net revenues was primarily due to 
    the Damon and Unilab acquisitions. 
    

(b) Includes a third quarter 1995 charge of $62.0 million to increase the 
    reserve for doubtful accounts and allowances resulting from billing 
    systems implementation and integration problems at certain laboratories 
    and increased regulatory requirements. 

   
(c) Provision for restructuring and other special charges includes charges 
    for restructurings primarily for work force reduction programs, the 
    write-off of fixed assets and the costs of exiting a number of leased 
    facilities. Other special charges is primarily comprised of settlement 
    reserves for claims related to billing practices. See Note 5 to the 
    Audited CCL Financial Statements and Notes 2 and 3 to the CCL Interim 
    Financial Statements. 
    

   
(d) For purposes of this calculation, earnings consist of pretax income from 
    continuing operations plus fixed charges. Fixed charges consist of 
    interest expense and one-third of rental expense, representing that 
    portion of rental expense deemed representative of the interest factor. 
    Earnings were insufficient to cover fixed charges by the following 
    amounts (in thousands): 
    


<TABLE>
<CAPTION>
          Three months Ended     Nine months Ended 
          September 30,          September 30,      Year Ended December 31, 
       --------------------- --------------------- ------------------------ 
       <C>         <C>        <C>         <C>               <C>

         1996        1995       1996       1995              1995 
       $162,989    $56,405    $202,149    $41,666           $57,568 

</TABLE>

   
(e) EBITDA represents income (loss) before income taxes plus net interest 
    expense, depreciation and amortization. EBITDA is presented because 
    management believes it is a widely accepted financial indicator of a 
    company's ability to service and incur debt. EBITDA does not represent 
    net income or cash flows from operations as those terms are defined by 
    generally accepted accounting principles and does not necessarily 
    indicate whether cash flows will be sufficient to fund cash needs or 
    service debt. Cash flows as defined by generally accepted accounting 
    principles were as follows (in thousands): 
    


<TABLE>
<CAPTION>
                             Three Months 
                                 Ended       Nine Months Ended 
                             September 30,     September 30,                    Year Ended December 31, 
                           -----------------  ----------------- --------------------------------------------------- 
                               1996      1995     1996     1995        1995     1994     1993       1992      1991 
 <S>                         <C>      <C>      <C>       <C>        <C>      <C>       <C>        <C>         <C>
 Cash provided by operating   
  activities                 $25,236  $ 38,202 $ 41,937  $ 53,789   $ 85,828 $ 37,963  $  99,614  $ 101,077    (h) 
 Cash used in investing      
   activities                 (7,904)  (17,044) (53,097)  (77,911)   (93,087) (46,186)  (473,687)  (203,884)   (h) 
 Cash provided by            
   (used in) financing       
   activities                 (6,618)  (18,006)  23,033    32,311      4,986    7,532    392,956     99,267    (h) 
</TABLE>                   

   
(f) 1996 EBITDA includes charges of $142 million and $188 million for the 
    three months and nine months ended September 30, 1996, respectively, 
    related to charges to establish additional reserves for settlement 
    issues. In October 1996, Corning contributed $119 million to CCL's 
    capital to fund the settlement of billing issues related to Damon and has 
    agreed to indemnify CCL against certain related and similar claims 
    pending at the Distribution Date. 
    

   
(g) Adjusted EBITDA represents income (loss) before income taxes plus net 
    interest expense, depreciation and amortization and restructuring and 
    other special charges. Adjusted EBITDA includes bad debt expense. 
    Adjusted EBITDA is presented because management believes it is an 
    accepted financial indicator of a company's ability to service and incur 
    debt. Adjusted EBITDA does not represent net income or cash flows from 
    operations as those terms are defined by generally accepted accounting 
    principles and does not necessarily indicate whether cash flows will be 
    sufficient to fund cash needs or service debt. 
    

   
(h) 1991 cash flow data, on a basis restated for poolings, is not available. 
    

                                       40
<PAGE> 

                    PRO FORMA FINANCIAL INFORMATION OF CCL 

   
   The unaudited pro forma combined statements of operations for the three 
and nine months ended September 30, 1996 and for the year ended December 31, 
1995 present the results of operations of CCL assuming that the Distributions 
and the CCL Accounting Policy Change had been completed as of January 1, 
1995. The unaudited pro forma combined balance sheet as of September 30, 1996 
presents the combined financial position of CCL assuming that the 
Distributions and the CCL Accounting Policy Change had been completed on that 
date. In the opinion of CCL management, the unaudited pro forma combined 
financial information for the year ended December 31, 1995 and the three and 
nine months ended September 30, 1996 (the "CCL Pro Forma Financial 
Information") includes all material adjustments necessary to restate CCL's 
historical results. The adjustments required to reflect such assumptions are 
described in the Notes to the CCL Pro Forma Financial Information and are set 
forth in the "Pro Forma Adjustments" column. 
    

   The CCL Pro Forma Financial Information should be read in conjunction with 
the CCL Financial Statements and notes thereto included elsewhere herein. The 
CCL Pro Forma Financial Information presented is 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 Distributions and the CCL Accounting Policy Change 
occurred as assumed herein, or had CCL been operated as an independent 
company during the periods shown. 

                                       41
<PAGE> 

   
                      CORNING CLINICAL LABORATORIES INC. 
             UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS 
                    Three Months Ended September 30, 1996 
    


<TABLE>
<CAPTION>
                                                                   Pro Forma 
                                                    Historical    Adjustments    Pro Forma 
                                                   ------------- -------------  ------------- 
                                                  (in thousands, except share and per share data) 
<S>                                                 <C>             <C>         <C>
Net revenues                                         $ 405,352      $           $   405,352 
Costs and expenses 
 Cost of services                                      255,390                      255,390 
 Selling, general and administrative                   125,190            0 (a)     125,190 
 Provision for restructuring and other special 
   charges                                             155,730                      155,730 
 Interest expense, net                                  19,866       (7,677)(b)      12,189 
 Amortization of intangible assets                      10,328       (2,656)(c)       7,672 
 Other, net                                              1,837                        1,837 
                                                   ------------- -------------  ------------- 
Loss before taxes                                     (162,989)      10,333        (152,656) 
Income tax (benefit) provision                         (43,553)       3,032 (d)     (40,521) 
                                                   ------------- -------------  ------------- 
Net loss                                             $(119,436)     $ 7,301     $  (112,135) 
                                                   ============= =============  ============= 
Pro forma shares outstanding                                                     28,901,735 (e) 
                                                                                ============= 
Pro forma net loss per share                                                    $     (3.88)(f) 
                                                                                ============= 
</TABLE>

The accompanying notes to unaudited pro forma combined financial information 
are an integral part hereof. 

                                       42
<PAGE> 

   
                      CORNING CLINICAL LABORATORIES INC. 
             UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS 
                     Nine Months Ended September 30, 1996 
    


<TABLE>
<CAPTION>
                                                                   Pro Forma 
                                                    Historical    Adjustments       Pro Forma 
                                                   ------------- --------------  ---------------- 
                                                   (in thousands, except share and per share data) 
<S>                                                 <C>             <C>            <C>
Net revenues                                        $1,231,290      $              $ 1,231,290 
Costs and expenses 
 Cost of services                                      768,809                         768,809 
 Selling, general and administrative                   371,439             0 (a)       371,439 
 Provision for restructuring and other special 
   charges                                             201,730                         201,730 
 Interest expense, net                                  59,887       (22,949)(b)        36,938 
 Amortization of intangible assets                      31,772        (7,969)(c)        23,803 
 Other, net                                               (198)                           (198) 
                                                   ------------- --------------  ---------------- 
Loss before taxes                                     (202,149)       30,918          (171,231) 
Income tax (benefit) provision                         (43,280)        9,065 (d)       (34,215) 
                                                   ------------- --------------  ---------------- 
Net loss                                            $ (158,869)     $ 21,853       $  (137,016) 
                                                   ============= ==============  ================ 
Pro forma shares outstanding                                                        28,901,735 (e) 
                                                                                 ================ 
Pro forma net loss per share                                                       $     (4.74)(f) 
                                                                                 ================ 
</TABLE>

The accompanying notes to unaudited pro forma combined financial information 
are an integral part hereof. 

                                       43
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
             UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS 
                         Year Ended December 31, 1995 

<TABLE>
<CAPTION>
                                                                   Pro Forma 
                                                    Historical    Adjustments       Pro Forma 
                                                   ------------- --------------  ---------------- 
                                                   (in thousands, except share and per share data) 
<S>                                                 <C>             <C>            <C>
Net revenues                                        $1,629,388      $              $ 1,629,388 
Costs and expenses 
 Cost of services                                      980,232                         980,232 
 Selling, general and administrative                   523,271             0 (a)       523,271 
 Provision for restructuring and other special 
   charges                                              50,560                          50,560 
 Interest expense, net                                  82,016       (31,268)(b)        50,748 
 Amortization of intangible assets                      44,656       (10,625)(c)        34,031 
 Other, net                                              6,221                           6,221 
                                                   ------------- --------------  ---------------- 
Loss before taxes                                      (57,568)       41,893           (15,675) 
Income tax (benefit) provision                          (5,516)       12,351(d)          6,835 
                                                   ------------- --------------  ---------------- 
Net loss                                            $  (52,052)     $ 29,542       $   (22,510) 
                                                   ============= ==============  ================ 
Pro forma shares outstanding                                                        28,901,735 (e) 
                                                                                 ================ 
Pro forma net loss per share                                                       $     (0.78)(f) 
                                                                                 ================ 
</TABLE>

The accompanying notes to unaudited pro forma combined financial information 
are an integral part hereof. 

                                       44
<PAGE> 

   
                      CORNING CLINICAL LABORATORIES INC. 
                  UNAUDITED PRO FORMA COMBINED BALANCE SHEET 
                              September 30, 1996 
    


<TABLE>
<CAPTION>
                                                                  Pro Forma 
                                                  Historical     Adjustments     Pro Forma 
                                                 ------------- ---------------  ------------- 
                                                                (in thousands) 
<S>                                               <C>           <C>              <C>
ASSETS 

Current Assets: 
 Cash and cash equivalents                        $   48,319     $   (8,319)(g)  $   40,000 
 Accounts receivable                                 323,171                        323,171 
 Inventories                                          25,559                         25,559 
 Deferred taxes on income                            126,906          9,400 (h)     136,306 
 Due from Corning Incorporated                                      150,000 (i)     150,000 
 Prepaid expenses and other assets                    25,217                         25,217 
                                                 ------------- ---------------  ------------- 
 Total current assets                                549,172        151,081         700,253 
Property, plant and equipment, net                   293,490                        293,490 
Intangible assets, net                             1,001,500       (425,000)(j)     576,500 
Other assets                                          42,216                         42,216 
                                                 ------------- ---------------  ------------- 
TOTAL ASSETS                                      $1,886,378     $ (273,919)     $1,612,459 
                                                 ============= ===============  ============= 

LIABILITIES AND STOCKHOLDER'S EQUITY 

Current Liabilities: 
 Accounts payable and accrued expenses            $  374,058     $    9,000 (k)  $  383,058 
 Current portion of long-term debt                    11,885        (10,000)(h)       1,885 
 Income taxes payable                                 34,212        (18,632)(h) 
                                                                     (7,011)(k)       8,569 
 Due to Corning Incorporated and affiliates           14,299        (14,299)(h) 
                                                 ------------- ---------------  ------------- 
 Total current liabilities                           434,454        (40,942)        393,512 
Long-term debt, third-party                           15,494        500,000 (h)     515,494 
Payable to Corning                                 1,204,406         (8,319)(g) 
                                                                   (447,669)(h) 
                                                                   (748,418)(l) 
Other liabilities                                     99,354                         99,354 
                                                 ------------- ---------------  ------------- 
 Total liabilities                                 1,753,708       (745,348)      1,008,360 
                                                 ------------- ---------------  ------------- 
Stockholder's Equity: 
 Contributed capital                                 297,823        150,000 (i) 
                                                                     11,250 (k) 
                                                                    748,418 (l)   1,207,491 
 Accumulated deficit                                (163,158)      (425,000)(j) 
                                                                    (13,239)(k)    (601,397) 
 Cumulative translation adjustment                     1,801                          1,801 
 Market valuation adjustment                          (3,796)                        (3,796) 
                                                 ------------- ---------------  ------------- 
 Total stockholder's equity                          132,670        471,429         604,099 
                                                 ------------- ---------------  ------------- 
TOTAL LIABILITIES 
  AND STOCKHOLDER'S EQUITY                        $1,886,378     $ (273,919)     $1,612,459 
                                                 ============= ===============  ============= 
</TABLE>

The accompanying notes to unaudited pro forma combined financial information 
are an integral part hereof. 

                                       45
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
         NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION 

Statements of Operations 

   
(a) The historical financial statements include substantially all of the 
    costs incurred by Corning on CCL's behalf and reflect all of its costs of 
    doing business. CCL management does not expect administrative costs to 
    increase as a result of being an independent, public company. 
    

   
(b) The pro forma adjustment to interest expense, net represents the 
    difference between historical intercompany interest expense and interest 
    expense on the third party debt to be incurred in connection with the CCL 
    Spin-Off Distribution. CCL will borrow, immediately prior to the CCL 
    Spin-Off Distribution, approximately $500 million in long-term debt to 
    repay Corning for certain intercompany borrowings. The debt is assumed to 
    consist of $350 million of CCL Credit Facility borrowings and $150 
    million of Notes to be issued under the CCL Notes Offering. The assumed 
    interest rates on these new borrowings are 7.50% and 11.50% for the CCL 
    Credit Facility and the Notes, respectively. If the interest rate on the 
    CCL Credit Facility fluctuates by 1/8%, interest expense fluctuates by 
    approximately $440,000 annually. Depending on market conditions at the 
    time of the CCL Notes Offering and the consummation of the CCL Credit 
    Facility, the total combined debt amount, the interest rates, and the 
    amounts of each of the CCL Credit Facility and the Notes may vary from 
    that indicated herein. 
    

   
(c) The pro forma adjustment to amortization of intangible assets represents 
    the estimated reduction of amortization expense due to the CCL Accounting 
    Policy Change. Most of CCL's intangible assets resulted from business 
    combinations in 1993 accounted for as purchases. Significant changes in 
    the clinical laboratory and health care industries subsequent to 1993 
    have caused the fair value of CCL's intangible assets to be significantly 
    less than their carrying value. CCL management believes that a valuation 
    of intangible assets based on the amount for which each regional 
    laboratory could be sold in an arms-length transaction is preferable to 
    using projected undiscounted pre-tax cash flows. CCL believes fair value 
    is a better indicator of the extent to which the intangible assets may be 
    recoverable and therefore may be impaired. CCL management estimates that 
    the reduction of amortization expense will approximate between $10.0 
    million and $11.3 million annually and $2.5 million and $2.8 million 
    quarterly. The midpoint of the range has been utilized for the 
    preparation of the Unaudited Pro Forma Combined Statements of Operations. 
    

   
(d) The pro forma adjustment to income tax (benefit) provision represents the 
    estimated income tax impact of the pro forma reduction in interest 
    expense at the incremental tax rate of 39.5%. The pro forma amortization 
    expense reduction will not impact income taxes as the amortization is not 
    deductible for tax purposes. 
    

   
(e) The pro forma common shares outstanding represents CCL management's 
    current estimate of the number of shares to be outstanding after the CCL 
    Spin-Off Distribution. Management's estimate includes (a) the issuance of 
    approximately 28.0 million shares of CCL Common Stock at an exchange 
    ratio of one share of CCL Common Stock issued for every eight shares of 
    Corning Common Stock outstanding at September 30, 1996 and (b) the 
    issuance of an estimated 900,000 shares into the employee stock ownership 
    plan. CCL management's estimate of shares outstanding is subject to 
    change as the result of normal issuances and repurchases of Corning 
    Common Stock prior to the date of the CCL Spin-Off Distribution and 
    finalization of the proposed structure of the employee stock ownership 
    plan. 
    

   
(f) Pro forma net loss per share is computed by dividing net loss by the pro 
    forma shares outstanding during each period. Common stock equivalents are 
    not included in the loss per share computation because they do not result 
    in material dilution. Historical net loss per share data is not presented 
    as CCL's historical capital structure is not comparable to periods 
    subsequent to the CCL Spin-Off Distribution. 
Balance Sheet 
    

   
(g) Historically, CCL has participated in Corning's centralized treasury and 
    cash management processes. Cash received from operations was generally 
    transferred to Corning on a daily basis. Cash disbursements for 
    operations and investments were funded as needed from Corning. The cash 
    balance at the Distribution Date will range from $30 million to $40 
    million. The pro forma adjustment to cash and payable to Corning 
    represents the reduction to bring cash to the Distribution Date range. 
    

   
(h) The pro forma adjustment to deferred taxes on income, current portion of 
    long-term debt, income taxes payable, due to Corning Incorporated and 
    affiliates, long-term debt third party and payable to Corning reflects 
    borrowings by CCL, immediately prior to the CCL Spin-Off Distribution, to 
    repay Corning for certain income tax liabilities and intercompany 
    borrowings. The debt is assumed to consist of $350 million of bank 
    borrowings under the CCL Credit Facility and $150 million of Notes to be 
    issued under the CCL Notes Offering. 
    

                                       46
<PAGE> 

   
(i) The pro forma adjustment to due from Corning Incorporated and contributed 
    capital represents the estimated receivable from Corning and capital 
    contribution related to Corning's indemnification under the Transaction 
    Agreement. The receivable from Corning is estimated to approximate $25 
    million at the Distribution Date. 
    

   
(j) The pro forma adjustment to intangible assets, net and accumulated 
    deficit represents the estimated impact of the CCL Accounting Policy 
    Change. CCL management estimates the charge to reduce the carrying value 
    of intangible assets to fair value will be in the range of $400 million 
    to $450 million. The midpoint of the range has been utilized for the 
    preparation of the Unaudited Pro Forma Combined Balance Sheet. This 
    charge has not been reflected in the Unaudited Pro Forma Combined 
    Statements of Operations because it is non-recurring. See additional 
    discussion on CCL's planned change in accounting policy in note (c) 
    above. 
    

   
(k) The pro forma adjustment to accounts payable and accrued expenses, income 
    taxes payable, contributed capital and accumulated deficit represents 
    costs directly related to the CCL Spin-Off Distribution that CCL expects 
    to record coincident with the CCL Spin-Off Distribution. These costs, 
    which are estimated at $20.2 million ($13.2 million after tax), include 
    approximately $9 million related to professional advisory and financing 
    commitment fees and $11.2 million related to the establishment of an 
    employee stock ownership plan. This amount is subject to change based on 
    the market price of the CCL Common Stock on the Distribution Date. This 
    charge has not been reflected in the Unaudited Pro Forma Statements of 
    Operations because it is nonrecurring. 
    

   
(l) The pro forma adjustment to payable to Corning and contributed capital of 
    $748.4 million reflects Corning's capital contribution to CCL of the 
    estimated remaining intercompany borrowings. 
    

                                       47
<PAGE> 

                     MANAGEMENT'S DISCUSSION AND ANALYSIS 
                    OF FINANCIAL CONDITION AND RESULTS OF 
                              OPERATIONS OF CCL 

Overview 

   In the last several years, CCL's business has been affected by significant 
government regulation, price competition and rapid change resulting from 
payors' efforts to control cost, utilization and delivery of health care 
services. As a result of these factors, CCL'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. 

   Payments for clinical laboratory services are made by government, managed 
care organizations, insurance companies, physicians and patients. Increased 
government regulation focusing on health care cost containment has reduced 
prices and added costs for the clinical laboratory industry by increasing 
complexity and adding new regulatory requirements. Also, in recent years 
there has been a significant shift away from traditional fee-for- service 
health care to managed health care, as employers and other payors of health 
care costs aggressively move the populations they control into lower cost 
plans. Managed care organizations typically negotiate capitated payment 
contracts whereby CCL receives a fixed monthly fee per covered individual for 
all services included under the contract. Capitated contract arrangements 
shift the risks of additional routine testing beyond that covered by the 
capitated payment to the clinical laboratory. The managed care industry is 
growing as well as undergoing rapid consolidation which has created large 
managed care companies that control the delivery of health care services for 
millions of people, and have significant bargaining power in negotiating fees 
with providers, including clinical laboratories. These market factors have 
had a significant adverse impact on prices in the clinical laboratory 
industry, and are major contributors to CCL's decline in profitability over 
the last two years. This growth of managed care and use of capitated 
agreements are expected to continue for the foreseeable future. See "Business 
of CCL--Effect of the Growth of the Managed Care Sector on the Clinical 
Laboratory Business." 

   
   A substantial portion of CCL's growth has come from acquisitions in the 
last four years. The largest of these acquisitions were the purchases of 
Damon and certain operations of Unilab in 1993 and the acquisitions of MML, 
Nichols Institute and Bioran in 1994. As a result of these acquisitions, CCL 
has recorded a number of special charges for restructuring and integration 
costs since 1993. See Note 5 to the Audited CCL Financial Statements and 
Notes 2 and 3 to the CCL Interim Financial Statements. 
    

   The MML, Nichols Institute and Bioran transactions were accounted for as 
poolings of interests. The accompanying financial statements of CCL have been 
restated to include the results of operations of these pooled entities on a 
combined basis for all periods presented. The results of operations for Damon 
and Unilab, as well as all other acquisitions accounted for as purchases, 
have been included since their respective dates of acquisition. Acquisitions 
accounted for as purchases have generated large amounts of goodwill which are 
not deductible for tax purposes, giving rise to a high effective income tax 
rate and increased sensitivity of the income tax rate to changes in pre-tax 
income. See Note 3 to the Audited CCL Financial Statements. 

   The clinical laboratory industry is subject to seasonal fluctuations in 
operating results. CCL's cash flows are influenced by seasonal factors. 
During the summer months, year-end holiday periods and other major holidays, 
volume of testing declines, reducing net revenues and resulting cash flows 
below annual averages during the third and fourth quarters of the year. 
Winter months are also subject to declines in testing volume due to inclement 
weather, which varies in severity from year to year. 

   The clinical laboratory industry is labor intensive. Approximately half of 
CCL's total costs and expenses are associated with employee compensation and 
benefits. Cost of services, which have approximated sixty percent of net 
revenues over the past several years, consists principally of costs for 
obtaining, transporting and testing specimens. Selling, general and 
administrative expenses consist principally of the cost of the sales force, 
billing operations (including bad debt expense), and general management and 
administrative support. 

Results of Operations 

   
   Three Months Ended September 30, 1996 Compared with Three Months Ended 
September 30, 1995. Earnings for the third quarter of 1996 were significantly 
below those for the prior year due principally to the impact of special 
charges. Before special charges, earnings were significantly above the prior 
year level, which included a $62 million charge to operations to increase 
accounts receivable reserves. 
    

                                       48
<PAGE> 

   
  Net Revenues 
   Net revenues increased by $5.4 million, or 1.3%, over the three months 
ended September 30, 1995 due to increased revenues from CCL's nonclinical 
testing businesses. Volume of clinical testing increased by 1.8% but was 
offset by average price declines of 1.7%. The majority of the price decline 
resulted from changes in reimbursement policies of various third-party 
payors, shifts in volume to lower-priced managed care business and intense 
price competition in the industry. Also contributing to the price decline was 
a reduction in Medicare fee schedules effective January 1, 1996, which 
accounted for approximately a 1% decrease in net revenues. 
    

   
  Costs and Expenses 
   Cost of services increased by $14.5 million from the prior period and as a 
percentage of net revenues increased to 63.0% in 1996 from 60.2% in 1995. 
These increases were due principally to the effects of declining prices and 
increases in salaries and wages associated with improving customer service 
levels, and wage adjustments. 
    

   
   Selling, general and administrative expense decreased by $56.2 million 
from the prior period and as a percentage of revenues decreased to 30.9% in 
1996 from 45.3% in 1995. These decreases were due principally to a reduction 
in bad debt expense, which decreased by $55.3 million, from $85.8 million to 
$30.5 million, and as a percentage of net revenues decreased from 21.5% to 
7.5%. The reduction in bad debt expense results primarily from the unusually 
high level of bad debt expense in the prior year, which included a charge of 
$62.0 million to increase receivables reserves. CCL has established, and 
maintains, rigorous programs to improve the effectiveness of CCL's billing 
and collection operations. The established programs include standard policies 
and procedures, employee training programs and regular reporting and tracking 
of key measures by senior management. The implementation of these programs 
during the fourth quarter of 1995 has aided in reducing bad debt expense. 
However, additional requirements to provide documentation of the "medical 
necessity" of testing have added to the backlog of unbilled receivables and 
caused third quarter 1996 bad debt expense as a percentage of revenues to 
increase above the rate CCL had experienced during the first two quarters of 
1996. Additional efforts to collect medical necessity documentation are 
currently being made and are expected to lower bad debt expense below the 
1996 third quarter rate during 1997.* 
    

   
   During the third quarter of 1996, CCL recorded a $142.0 million charge to 
establish additional reserves associated with government and other claims 
primarily related to billing practices at certain laboratories of Damon and 
Nichols prior to their acquisition by CCL. Subsequent to the third quarter, 
CCL entered into an agreement with the DOJ to pay $119.0 million to settle 
all federal and Medicaid claims related to the billing by Damon of certain 
blood test series for federally sponsored health care programs. This payment 
was fully reserved as part of the third quarter charge. CCL's aggregate 
reserve with respect to all governmental and nongovernmental claims, 
including litigation costs, was $215 million at September 30, 1996, and is 
estimated to be $85 million at the Distribution Date. Although management 
believes that established reserves for both indemnified and non-indemnified 
claims are sufficient, it is possible that the final resolution of these 
matters could be in excess of established reserves by an amount which could 
be material to CCL's results of operation and, for non-indemnified claims, 
CCL's cash flows in the periods in which such claims are settled. CCL does 
not believe that these matters will have a material adverse effect on CCL's 
overall financial condition. See "Business of CCL--OIG Investigations and 
Related Claims." 
    

   
   Additionally, in the third quarter CCL recorded a charge of $13.7 million 
to write off the development costs of what was intended as a new company-wide 
billing system. Management now plans to standardize billing systems using a 
system already implemented in seven of its sites. See "Business of 
CCL--Information Systems" and "-- Billing" and Notes 2 and 3 to the CCL 
Interim Financial Statements. 
    

   Net interest expense declined from the prior year's level due to lower 
average borrowings during 1996. Amortization of intangible assets decreased 
below the prior year's level due to certain intangible assets having been 
fully amortized. 

   
   CCL's effective tax rate is significantly impacted by goodwill 
amortization which is not deductible for tax purposes and which had the 
effect of decreasing the tax benefit rate for the third quarter of 1996. 
    

   
   Nine Months Ended September 30, 1996 Compared with Nine Months Ended 
September 30, 1995. Earnings were substantially below those for the prior 
year due principally to special charges, price declines, increases in 
salaries and wages, higher bad debt expense, and unusually severe winter 
weather experienced during the first quarter of 1996. 
    

- ------------- 

* This is a forward looking statement. See "Business of CCL--Cautionary 
  Statement for Purposes of the 'Safe Harbor' Provisions of the Private 
  Securities Litigation Reform Act of 1995." In particular see factors (c), 
  (d), (j) and (k). 

                                       49
<PAGE> 

   
  Net Revenues 
   Net revenues decreased by $8.2 million, or .7%, from the prior period, 
principally due to average price declines of approximately 3.4%, partially 
offset by an increase in clinical testing of 1.2% and increased revenues from 
CCL's nonclinical testing businesses. Adversely affecting the volume growth 
was unusually severe winter weather in the northeastern and central parts of 
the United States during the first quarter of 1996. The majority of the price 
declines resulted from changes in reimbursement policies of various 
third-party payors, shifts in volume to lower-priced managed care business, 
and intense price competition in the industry. Also contributing to the price 
declines was a reduction in Medicare fee schedules effective January 1, 1996, 
which accounted for approximately a 1% decrease in net revenues. 
    

   
  Costs and Expenses 
   Cost of services increased by $32.8 million from the prior period and as a 
percentage of net revenues increased to 62.4% in 1996 from 59.4% in 1995. 
These increases were due principally to the effects of declining prices and 
increases in salaries and wages associated with improving customer service 
levels, and wage adjustments. 
    

   
   Selling, general and administrative expense decreased by $28.2 million 
from the prior period and as a percentage of net revenues decreased to 30.2% 
in 1996 from 32.2% in 1995. These decreases were due principally to a 
reduction in bad debt expense, which decreased, by $45.4 million, from $127.3 
million to $81.9 million, and as a percentage of net revenues decreased from 
10.3% to 6.7%, partially offset by costs associated with developing and 
implementing strategic action plans and operating improvement plans. The 
reduction in bad debt expense results primarily from the unusually high level 
of bad debt expense in the prior year, which included a charge of $62.0 
million to increase receivables reserves. CCL has established, and maintains, 
rigorous programs to improve the effectiveness of CCL's billing and 
collection operations. The established programs include standard policies and 
procedures, employee training programs and regular reporting and tracking of 
key measures by senior management. The implementation of these programs 
during the fourth quarter of 1995 has aided in reducing bad debt expense. 
However, additional requirements to provide documentation of the "medical 
necessity" of testing have added to the backlog of unbilled receivables and 
caused third quarter 1996 bad debt expense as a percentage of revenues to 
increase above the rate CCL had experienced during the first two quarters of 
1996. Additional efforts to collect medical necessity documentation are 
currently being made and are expected to lower bad debt expense below the 
1996 third quarter rate during 1997.* 
    

   
   In the second quarter of 1996, as a consequence of an investigation begun 
in 1993, the DOJ notified CCL that it has taken issue with payments related 
to certain tests received by Damon from federally funded health care programs 
prior to the acquisition of Damon by CCL. CCL management met with the DOJ 
several times to evaluate the substance of the government's allegations. A 
special charge of $46.0 million was recorded in the second quarter of 1996 to 
establish additional reserves equal to management's estimate, at that time, 
of the low end of the range of potential amounts which could be required to 
satisfy the government's claims. During the third quarter of 1996 CCL 
recorded a $142.0 million charge to establish additional reserves associated 
with government and other claims primarily related to billing practices at 
certain laboratories of Damon and Nichols prior to their acquisition by CCL. 
Subsequent to the third quarter, CCL entered into an agreement with the DOJ 
to pay $119.0 million to settle all federal and Medicaid claims related to 
the billing by Damon of certain blood test series for federally sponsored 
health care programs. This payment was fully reserved as part of the third 
quarter charge. Additionally, in the third quarter CCL recorded a charge of 
$13.7 million to write off the development costs of what was intended as a 
new company-wide billing system. Management now plans to standardize billing 
systems using a system already implemented in seven of its sites. See 
"Business of CCL--Information Systems" and "--Billing" and Notes 2 and 3 to 
the CCL Interim Financial Statements. 
    

   
   In the second quarter of 1995, CCL recorded a provision for restructuring 
totalling $33 million primarily for work force reduction programs and the 
costs of exiting a number of leased facilities. Additionally, in the first 
quarter of 1995 CCL recorded a special charge of $12.8 million for the 
settlement of claims related to the inadvertent billing errors of certain 
laboratory tests that were not completely and/or successfully performed or 
reported due to insufficient samples and/or invalid results. 
    


- ------------- 

   
* This is a forward looking statement. See "Business of CCL--Cautionary 
  Statement for Purposes of the 'Safe Harbor' Provisions of the Private 
  Securities Litigation Reform Act of 1995." In particular see factors (c), 
  (d), (j) and (k). 
                                       50
<PAGE> 
    

   
   Net interest expense remained relatively unchanged from the prior year 
level. Amortization of intangible assets decreased below the prior year level 
due to certain intangible assets having been fully amortized. A gain on the 
sale of several small investments and the favorable settlement of a 
contractual obligation, both of which occurred in 1996, accounted for the 
majority of the change in "other, net" compared to the prior year. 
    

   
   CCL's effective tax rate is significantly impacted by goodwill 
amortization which is not deductible for tax purposes. This had the effect of 
reducing the tax benefit rate of CCL in both 1996 and 1995. The effect of 
this non- deductibility is particularly apparent when amortization increases 
in proportion to pre-tax earnings, as was the case in 1995. 
    

   Year Ended December 31, 1995 Compared with Year Ended December 31, 
1994. Earnings for 1995 were significantly below those for the prior year as 
a result of price declines, higher bad debt expense, and the impact of 
restructuring and other special charges. The 1995 bad debt expense included a 
$62.0 million charge to increase accounts receivable reserves in the third 
quarter. 

  Net Revenues 
   Net revenues of $1.6 billion in fiscal 1995 remained essentially unchanged 
from the prior year. Average price declines, estimated to be 3.7%, were 
offset by estimated growth of approximately 4% in requisition volume. The 
majority of the price declines resulted from changes in reimbursement 
policies of various third-party payors, an accelerated shift in volume to 
lower-priced managed care business, and intense price competition in the 
industry. Also contributing to the price declines was a reduction in Medicare 
fee schedules effective January 1, 1995 which accounted for approximately a 
1% decrease in net revenues. 

  Costs and Expenses 
   Cost of services increased $10.4 million from 1994 and as a percentage of 
net revenues increased to 60.2% in 1995 from 59.4% in 1994. These increases 
were due principally to the impact of price declines and the added cost of 
doing business in an increasingly complex environment. Partially offsetting 
these factors were synergies realized from integration of acquisitions. 

   
   Selling, general and administrative expense increased $111.3 million from 
1994 and as a percentage of net revenues increased to 32.1% in 1995 from 
25.2% in 1994. These increases resulted primarily from a higher level of bad 
debt expense, which included a charge of $62.0 million to increase 
receivables reserves. Bad debt expense increased to $152.6 million or 9.4% of 
net revenues in 1995 from $59.5 million or 3.6% of net revenues in 1994, as a 
result of the $62.0 million charge and an increase in bad debt expense in the 
fourth quarter of 1995. Excluding bad debt expense, selling, general and 
administrative expenses as a percentage of net revenues were approximately 
22.7% as compared to 21.6% in 1994. The $62.0 million charge was attributable 
to integration problems at certain laboratories, the cost of compliance with 
increased regulatory requirements and a failed billing system implementation 
at CCL's largest facility in Teterboro, New Jersey. All of these factors 
contributed to a significant growth in the backlog of unbilled receivables, 
which caused the deterioration in the collection of receivables during the 
third quarter of 1995. In addition to the $62.0 million charge, the accrual 
rate for bad debt expense was increased to 6.4% of net revenues after the 
charge from 5.0% of net revenues prior to the charge. CCL has put in place a 
rigorous program to improve the effectiveness of its billing and collection 
operations. Additionally, CCL has stabilized the current billing system in 
Teterboro. See "Business of CCL--Information Systems" and "--Billing." 
    

   In the second quarter of 1995, CCL recorded a provision for restructuring 
totalling $33.0 million, consisting primarily of costs for work force 
reduction programs and exiting a number of leased facilities. In the first 
quarter of 1995, CCL recorded a special charge of $12.8 million for the 
settlement of claims related to inadvertent billing errors of certain 
laboratory tests that were not completely and/or successfully performed or 
reported due to insufficient samples and/or invalid results. In the third 
quarter of 1994, CCL recorded a provision for restructuring and other special 
charges totalling $79.8 million which included $48.2 million of integration 
costs, $21.6 million of transaction expenses, and $10.0 million of other 
reserves primarily related to the Nichols Institute, MML and Bioran 
acquisitions. See Note 5 to the Audited CCL Financial Statements. 

   Net interest expense increased by $18.7 million over the 1994 level due to 
an increase in average debt levels, resulting principally from funding 
investing activities and cash requirements associated with restructuring and 
other special charges. 

                                       51
<PAGE> 

   Amortization expense increased principally due to additional intangible 
assets arising from acquisitions completed in 1994 and 1995. CCL's effective 
tax rate is significantly impacted by goodwill amortization which is not 
deductible for tax purposes. This had the effect of reducing the tax benefit 
rate to CCL in 1995 while increasing the overall tax rate in 1994. See Note 4 
to the Audited CCL Financial Statements. 

   Year Ended December 31, 1994 Compared with Year Ended December 31, 
1993. Earnings for 1994 were below those for the prior year due principally 
to price declines, which outpaced the cost efficiencies realized from the 
integration of acquisitions and other activities to reduce costs. 

  Net Revenues 
   Net revenues increased by $217.4 million, or 15.3%, over the prior year, 
due principally to the net impact of acquisitions and dispositions which 
increased net revenues by approximately $240 million. The net effect of 
average price declines, estimated at 4%, offset by an increase in requisition 
volume, estimated at 3%, accounted for the remaining change in net revenues. 
The majority of the price declines resulted from a shift in volume to 
lower-priced managed care business, changes in reimbursement policies of 
various third-party payors, and intense price competition. Also contributing 
to the price declines was a reduction in Medicare fee schedules effective 
January 1, 1994 which accounted for approximately a 1% decrease in net 
revenues. 

  Costs and Expenses 
   Cost of services increased $164.1 million over 1993 and as a percentage of 
net revenues increased to 59.4% in 1994 from 56.9% in 1993. These increases 
were due principally to the impact of price declines and the added cost of 
doing business in an increasingly complex environment. Partially offsetting 
these factors were synergies realized from integration of acquisitions. 

   
   Selling, general and administrative expense increased $48.4 million over 
1993 and as a percentage of net revenues decreased slightly from 25.7% in the 
prior year to 25.2%. Synergies associated with the elimination of duplicate 
facilities, personnel and administrative functions of acquired entities, 
primarily Damon, MML and Nichols, with those of CCL were partially offset by 
an increase in bad debt expense, which increased by $12.3 million, from $47.2 
million to $59.5 million, and increased from 3.3% of net revenues in 1993 to 
3.6% in 1994. 
    

   In the third quarter of 1994, CCL recorded a provision for restructuring 
and other special charges totalling $79.8 million, which included $48.2 
million of integration costs, $21.6 million of transaction expenses, and 
$10.0 million of other reserves primarily related to the Nichols Institute, 
MML and Bioran acquisitions. Integration costs represented the expected costs 
for closing clinical laboratories in certain markets where duplicate CCL and 
Nichols Institute, MML or Bioran facilities existed at the time of the 
acquisitions. In the third quarter of 1993, CCL recorded a provision for 
restructuring costs and other special charges totalling $99.6 million. The 
restructuring component of this special charge aggregated $56.6 million 
related principally to the integration of CCL's operations with those 
acquired in the Damon acquisition. The special charge consisted primarily of 
a $36.5 million charge to reflect the settlement and related legal expenses 
associated with a compromise agreement with the DOJ to settle claims brought 
on behalf of the OIG. In making the settlement, CCL did not admit any 
wrongdoing in connection with its marketing or business practices. See "--DOJ 
Investigations," "Business of CCL--OIG Investigations" and Note 5 to the 
Audited CCL Financial Statements. 

   Net interest expense increased by $21.4 million over the prior year, due 
principally to increased borrowings associated with financing acquisitions 
and, to a lesser degree, increased borrowing rates. Amortization of 
intangibles increased due to additional intangible assets arising from 
acquisitions completed in 1993 and 1994. 

   CCL's effective tax rate is significantly impacted by goodwill 
amortization which is not deductible for tax purposes, and has the effect of 
increasing the overall tax rate, particularly when amortization increases in 
proportion to pre-tax earnings. This situation was the principal contributor 
to the increase in the 1994 effective tax rate over the prior year. See Note 
4 to the Audited CCL Financial Statements. 

Liquidity and Capital Resources 

   
  After the Distributions 
   Concurrently with the CCL Spin-Off Distribution, CCL's debt will be 
restructured and equity recapitalized. CCL plans to complete the CCL Notes 
Offering of approximately $150 million principal amount of Notes, and incur 
approximately $350 million of borrowings under the CCL Credit Facility. The 
proceeds from these borrowings will 
    

                                       52
<PAGE> 

   
be used to repay amounts owed to Corning. Any amounts owed to Corning in 
excess of the proceeds from these borrowings will be contributed by Corning 
to CCL's capital. As a result of these actions, management estimates that 
CCL's debt will be reduced by approximately $720 million to approximately 
$515 million, and annual interest expense will be reduced by approximately 
$31 million. The CCL Credit Facility will include a revolving credit facility 
of $100 million, all of which is expected to be available for borrowing at 
the time of the Distributions. 
    

   
   CCL estimates that it will invest approximately $20 million during the 
fourth quarter of 1996 for capital expenditures, principally related to 
facility upgrades and investments in information technology. Capital 
expenditures in 1997 are estimated to be approximately $95 million. CCL 
expects to expand its operations principally through internal growth and 
accelerated growth in strategic markets and related lines of business. CCL 
expects such activities will be funded from existing cash and cash 
equivalents, cash flow from operations, and borrowings under the revolving 
credit facility. CCL believes that the revolving credit facility will be 
sufficient to meet both its short-term and its long-term financing needs. As 
a result, CCL believes it has sufficient financial flexibility and sufficient 
access to funds to meet seasonal working capital requirements, capital 
expenditures and growth opportunities. 
    

   
   CCL does not anticipate paying dividends on the CCL Common Stock in the 
foreseeable future. In addition, the CCL Credit Facility prohibits CCL from 
paying cash dividends on the CCL Common Stock. Further, the Indenture under 
which the Notes will be issued will restrict CCL's ability to pay cash 
dividends on the CCL Common Stock based on a percentage of CCL's cash flow. 
    

   Coincident with the Distributions, CCL plans to record a non-recurring 
charge of approximately $20 million associated with the Distributions. The 
largest component of the charge will be the cost of establishing an employee 
stock ownership plan. The remainder of the charge will consist principally of 
the costs for advisors and other fees associated with establishing CCL as a 
separate publicly traded entity. The amount of the charge is subject to 
change based on the price of the CCL Common Stock on the Distribution Date. 

   Although CCL has no present acquisition agreements or arrangements, there 
may be acquisitions or other growth opportunities which will require 
additional external financing, and CCL may from time to time seek to obtain 
funds from public or private issuances of equity or debt securities. There 
can be no assurance that such financing will be available on terms acceptable 
to CCL. See "Risk Factors -- Risks Relating to CCL -- Potential Liability 
under the Spin-Off Tax Indemnification Agreements." 

   CCL management believes that the recapitalization of CCL and the 
indemnification by Corning against monetary fines, penalties or losses from 
outstanding government claims, together with the successful implementation of 
its business strategy, will generate more predictable and improved cash 
flows. Additionally, CCL management believes that these actions, together 
with CCL's leading market position or low cost provider status in a number of 
geographic regions accounting for the majority of its net revenues, will aid 
CCL in meeting the ongoing challenges in the clinical laboratory industry 
brought on by growth in managed care and increased regulatory complexity. 

   The immediately preceding paragraph includes forward-looking statements 
which involve risks and uncertainties. CCL's actual performance may differ 
materially from that discussed above. Factors that might cause such a 
difference include, but are not limited to, those discussed in "Risk Factors" 
as well as future events that have the effect of reducing CCL's available 
cash flows, such as unexpected operating losses, restructuring activities and 
cash payments or losses of revenues related to settlement of claims by 
non-governmental entities that arise out of the governmental investigations 
or other claims which are instituted after the Distributions (which are not 
covered by Corning's indemnity). 

   
  Prior to the Distributions 
   Historically, CCL has financed its operations and growth with cash flow 
from operations, borrowings from Corning, and stock issued by Corning to 
finance certain acquisitions on behalf of CCL. Investing activities have 
included business acquisitions and capital expenditures for facility 
expansions and upgrades and information systems improvements. Replacement of 
laboratory equipment has typically been financed through operating leases. 
    

   
   Net cash provided by operating activities for the nine months ended 
September 30, 1996 was below the level for the comparable period of the prior 
year, as a result of reduced earnings, partially offset by an improved 
collection rate of accounts receivable and a reduction in restructuring 
spending. This improvement in accounts receivable is 
    

                                       53
<PAGE> 

   
a direct result of specific programs initiated in the fourth quarter of 1995 
to improve billing operations. Although these programs are continuing, 
additional requirements of customers to provide documentation of the "medical 
necessity" of testing are expected to increase receivable levels in the 
future. The number of days sales outstanding in accounts receivable ("DSOs") 
for the clinical testing business is one measure used by CCL to monitor the 
effectiveness of its billing operations. DSOs were 74 days at September 30, 
1996 and December 31, 1995, 81 days at December 31, 1994, and 90 days at 
December 31, 1993. 
    

   Net cash provided by operating activities during 1995 increased above the 
prior year despite reduced earnings, due primarily to changes in accounts 
payable and accrued expenses and reduced spending for restructuring 
integration and other special charges. Net cash provided by operating 
activities in 1994 declined from the 1993 level principally due to larger 
increases in accounts receivables and higher levels of spending for 
restructuring, integration and other special charges during 1994. 

   
   Cash used for investing activities for the nine months ended September 30, 
1996 was below the prior year level due to reduced acquisition activity and 
the sale of several small investments during 1996. Investing activities 
during 1995, 1994 and 1993 were funded principally by cash flow from 
operations and borrowings from Corning, and were principally for capital 
expenditures and acquisitions. Cash used in investing activities in 1995 
exceeded the prior year level due principally to cash proceeds generated from 
the sale of certain California operations in 1994. See Note 3 to the Audited 
CCL Financial Statements. 
    

   
   Net cash provided by financing activities for the nine months ended 
September 30, 1996 was below the prior year level due primarily to reduced 
acquisition activity during 1996. Financing activities in 1995, 1994 and 1993 
consisted principally of dividend payments to and net borrowing activities 
with Corning. 
    

   
  Adjusted EBITDA 
   Adjusted EBITDA represents income (loss) before income taxes plus net 
interest expense, depreciation and amortization and restructuring and other 
special charges. Adjusted EBITDA includes bad debt expense. Adjusted EBITDA 
is presented because management believes it is an accepted financial 
indicator of a company's ability to service and incur debt. Adjusted EBITDA 
does not represent net income or cash flows from operations as those terms 
are defined by generally accepted accounting principles and does not 
necessarily indicate whether cash flows will be sufficient to fund cash needs 
or service debt. 
    

   
   Adjusted EBITDA for the third quarter of 1996 was $37.6 million, or 9.3% 
of net revenues. Adjusted EBITDA in the prior year period was ($9.9) million. 
The improvement in Adjusted EBITDA was principally due to a decrease in 
selling, general and administrative expense (which decreased $56.2 million) 
and an increase in net revenues of $5.4 million, partially offset by an 
increase in cost of services (which increased $14.5 million). 
    

   
   Adjusted EBITDA for the nine months ended September 30, 1996 was $134.7 
million, or 10.9% of net revenues. Adjusted EBITDA in the prior year period 
was $141.8 million, or 11.4% of net revenues. The decline in Adjusted EBITDA 
was principally due to a decrease in net revenues of $8.2 million and an 
increase in cost of services (which increased $32.8 million), partially 
offset by a decrease in selling, general and administrative expense (which 
decreased $28.2 million). 
    

   
   Adjusted EBITDA for 1995 was $176.5 million, or 10.8% of net revenues. 
Adjusted EBITDA for the prior year period was $295.4 million, or 18.1% of net 
revenues. The decline in Adjusted EBITDA was principally due to an increase 
in cost of services (which increased $10.4 million) and an increase in 
selling, general and administrative expense (which increased $111.3 million). 
    

   
   Adjusted EBITDA for 1994 was $295.4 million, or 18.1% of net revenues. 
Adusted EBITDA in the prior year period was $278.7 million, or 19.7% of net 
revenues. The increase in Adjusted EBITDA was principally due to an increase 
in revenues (which increased $217.4 million), partially offset by an increase 
in cost of services (which increased $164.1 million) and an increase in 
selling, general and administrative expenses (which increased $48.4 million). 
    


Changes in Accounting Policies 

   Coincident with the CCL Spin-Off Distribution, CCL management will adopt a 
new accounting policy for evaluating the recoverability of intangible assets 
and measuring possible impairment under Statement of the Accounting 
Principles Board No. 17. Most of CCL's intangible assets resulted from 
purchase business combinations 

                                       54
<PAGE> 

in 1993. Significant changes in the clinical laboratory and health care 
industries subsequent to 1993, including increased government regulation and 
movement from traditional fee-for-service care to managed cost health care, 
have caused the fair value of CCL's intangible assets to be significantly 
less than carrying value. CCL management believes that a valuation of 
intangible assets based on the amount for which each regional laboratory 
could be sold in an arms-length transaction is preferable to using projected 
undiscounted pre-tax cash flows. CCL believes fair value is a better 
indicator of the extent to which the intangible assets may be recoverable and 
therefore, may be impaired. This change in method of evaluating the 
recoverability of intangible assets will result in CCL recording a charge of 
between $400 million and $450 million coincident with the CCL Spin-Off 
Distribution to reflect the other than temporary impairment of intangible 
assets. This will result in a reduction of amortization expense of 
approximately $10 million to $11.3 million annually and $2.5 million to $2.8 
million quarterly. See Note 15 to the Audited CCL Financial Statements. 

   
   In October 1995, the Financial Accounting Standards Board issued Statement 
No. 123, "Accounting for Stock- Based Compensation" ("SFAS 123"). This 
statement defines a fair value-based method of accounting for employee stock 
options and similar equity investments and encourages adoption of that method 
of accounting for employee stock compensation plans. However, it also allows 
entities to continue to measure compensation cost for employee stock 
compensation plans using the intrinsic value-based method of accounting 
prescribed by APB Opinion No. 25, "Accounting for Stock Issued to Employees" 
("APB 25"). Entities which elect to continue accounting for stock 
compensation plans utilizing APB 25 are required to disclose pro forma net 
income and earnings per share, as if the fair value-based method of 
accounting under SFAS 123 had been applied. CCL intends to account for stock 
compensation plans pursuant to APB 25 and, as such, will include the pro 
forma disclosures required by SFAS 123 in the financial statements beginning 
in 1996. 
    

   
Inflation 
    

   
   CCL believes that inflation generally does not have a material adverse 
effect on its operations or financial condition because substantially all of 
its contracts are short-term. 
    

                                       55
<PAGE> 

                               BUSINESS OF CCL 

Overview 

   
   CCL is one of the largest clinical laboratory testing companies in the 
United States, offering a broad range of routine and esoteric testing 
services used by the medical profession in the diagnosis, monitoring and 
treatment of disease and other medical conditions. CCL currently processes 
approximately 60 million requisitions each year. 
    

   CCL is the successor by merger to MetPath Inc. ("MetPath"), a New York 
corporation organized in 1967. Corning acquired MetPath in 1982 and in 1992 
merged MetPath into CCL, which had been organized in 1990 as a holding 
company for the clinical laboratory testing business and contract research 
business. In 1994, CCL expanded its presence in the esoteric testing market 
through the acquisition of Nichols Institute, now known as Corning Nichols 
Institute ("Nichols"), which is one of the leading esoteric clinical 
laboratories in the world. 

   Since its founding in 1967, CCL's clinical laboratory testing business has 
grown into a network of 17 regional laboratories across the United States, 
the Nichols esoteric testing laboratory in San Juan Capistrano, California 
and one branch laboratory in Mexico City. In addition, CCL has 14 smaller 
branch laboratories, approximately 200 "STAT" laboratories and approximately 
850 patient service centers located throughout the United States. A 
substantial portion of this growth has resulted from acquisitions. See 
"--Acquisitions and Dispositions." 

Recent Organizational Changes 

   
   Between 1990 and 1995, Corning tripled the size of its clinical laboratory 
testing business, principally through acquisitions. Historically, prior 
management pursued a strategy of growth through acquisitions, including 
diversification outside of the clinical laboratory testing business. As a 
result of difficult integrations and increased pricing pressures and 
regulatory complexity in the clinical testing industry, a new strategy was 
needed. In May 1995, Corning responded by appointing Kenneth Freeman, then an 
Executive Vice President of Corning, as President and Chief Executive Officer 
of CCL, who was charged with the responsibility to formulate a new strategy. 
Mr. Freeman has over 24 years of key financial and managerial experiences at 
Corning, including serving as the general manager of Corning's science 
products division and the President and Chief Executive Officer of Corning 
Asahi Video Products Company. Under Mr. Freeman's leadership, profitability 
of these operations increased. 
    

   Mr. Freeman immediately suspended CCL's acquisition program. Under his 
direction, CCL began to refocus on its core clinical laboratory testing 
business and reorganize its senior management team. As a result, CCL is 
implementing the best practices in each region throughout CCL; standardizing 
processes and systems; analyzing the cost of serving various customers; 
intensifying efforts to correct persistent billing errors to both enhance 
customer satisfaction and reduce the cost of billing operations; enhancing 
its compliance program to audit and correct system defaults and to better 
train employees in the laws and rules governing the industry; and improving 
communications with employees by improving systems and the kind and amount of 
current information available to employees. 

   Mr. Freeman revamped the senior management team by appointing four new 
senior executives and changing the responsibilities of five other senior 
executives. Additionally, approximately one-half of the existing laboratory 
facility general managers were replaced. 

   Mr. Freeman also changed the management structure, appointing three of the 
senior executives to newly created key positions--Douglas VanOort, who will 
focus exclusively on laboratory operations, Donald Hardison, who will focus 
on commercial activities, and Dr. Gregory Critchfield, who will lead the 
efforts in the science and medical areas and pursue innovations. All three 
report directly to Mr. Freeman. See "Management of CCL--Executive Officers." 
CCL believes that this new management structure will greatly enhance CCL's 
ability to pursue its business strategy. Mr. VanOort and the regional and 
facility operations leaders who report to him will focus their primary 
attention on laboratory operations, efficiencies and standardization. Mr. 
Hardison and the regional and local commercial leaders who report to him will 
develop and coordinate national, regional and local sales and marketing 
efforts, and will cultivate national and regional client relationships and 
provider alliances. Dr. Critchfield will pursue scientific excellence in the 
laboratory as well as seek out, develop and assimilate those new tests and 
technologies that will differentiate CCL and propel its growth in the future. 

   This three-prong management structure is designed to implement CCL's 
Business Strategy to make CCL the best supplier (i.e., lowest-cost, highest 
quality) of quality testing services; the preferred provider of fairly priced 

                                       56
<PAGE> 

and useful health care services and information; and the industry's leading 
innovator of new clinical tests, methodologies and services. 

Business Strategy 

   CCL's overall goal is to be recognized by its competitors, customers and 
employees as the best provider of comprehensive and innovative clinical 
testing, information and services. To achieve this, CCL has set several 
strategic goals and put in place organizational structures to implement them. 

   Best Supplier. CCL seeks to be the best supplier of the highest quality 
and the lowest-cost testing services. Health care providers and patients 
expect accurate, timely and consistent laboratory test results at a fair 
price. 

   
   (bullet) Lowest Cost Provider. Currently, approximately 28% of CCL's net 
            revenues are from laboratories that CCL believes are the 
            lowest-cost providers in their respective markets. CCL currently 
            receives approximately 60 million requisitions for testing each 
            year. Currently, CCL's average cost per requisition varies 
            significantly among its regional laboratories: an approximately 
            $7.00 difference in cost per requisition between the most 
            efficient regional laboratory and the average and an 
            approximately $13.00 difference in cost per requisition between 
            the most and the least efficient regional laboratories. In many 
            cases, these variations do not relate to testing volumes or 
            mixes, space costs, service requirements or regional labor cost 
            differences. To reduce costs, CCL has begun to replicate the best 
            practices from each region throughout its national network. 
            Standardization of equipment and supplies, as well as leveraging 
            of CCL's purchasing power, is also part of this strategy. While 
            CCL's overall program of standardization is in a preliminary 
            stage, CCL has already selected its standard clinical instruments 
            and has selected its national vendors for laboratory supplies, 
            temporary services and personal computers. Management expects to 
            achieve significant cost savings within the next three years as 
            these programs are fully implemented, the majority of which are 
            expected to be achieved by the end of 1998. * 
    

   
   (bullet) Highest Quality Provider. CCL is dedicated to providing accurate 
            and timely testing results and to being viewed by its customers 
            as the highest quality provider of clinical testing services. CCL 
            believes that implementation of best practices already developed 
            in certain regions will permit CCL to be viewed by its customers 
            as the highest quality provider of clinical testing services. For 
            example, as part of its best practices policy, CCL is identifying 
            the most common service failures in each regional laboratory and 
            establishing procedures to substantially reduce these service 
            failures. Management believes that implementing these best 
            practices will increase the level of quality while lowering 
            costs.** Historically, CCL's experience has been that the regions 
            with the highest quality of services have also had the lowest 
            costs. 
    

   Preferred Provider. CCL seeks to be the preferred provider of laboratory 
testing services to existing and new health care networks on a selective 
basis determined by profitability of accounts. CCL believes that it will 
become the preferred provider to these networks as (1) large networks 
typically prefer to utilize large independent clinical laboratories that can 
service them on a national or regional basis and (2) CCL continues to pursue 
its primary strategy of becoming the highest quality, lowest cost provider. 
To achieve this, CCL will employ a rigorous national and regional process to 
identify prospective customers and to efficiently allocate resources to 
support these efforts. CCL will also pursue innovative alliances and seek to 
assist its partners in achieving their business objectives. 

   (bullet) Account Profitability. CCL intends to refocus its sales efforts 
            on pursuing and keeping profitable accounts. CCL is engaging in 
            an active program with current accounts, including those with 
            managed care organizations, to evaluate their profitability and 
            either increase pricing or eliminate accounts that cannot be 
            serviced profitably. Throughout the independent clinical 
            laboratory industry, there are substantial differences in pricing 
            among, as well as the cost of serving, various categories of 
            payors and health care providers. CCL is beginning to provide 
            clear pricing guidelines to its sales force and changing its 
            commission structure so that compensation is tied to the 
            profitability of (rather than revenues from) new business. 

   
- ------------- 

*     This is a forward looking statement. See "--Cautionary Statement for
      Purposes of the 'Safe Harbor' Provisions of the Private Securities
      Litigation Reform Act of 1995." In particular see factors (c), (d), (g)
      and (j).

**    This is a forward looking statement. See "--Cautionary Statement for
      Purposes of the 'Safe Harbor' Provisions of the Private Securities
      Litigation Reform Act of 1995." In particular see factors (b), (c), (d),
      (f) and (j).
                                       57

<PAGE> 

            Management expects to achieve significant benefits from these 
            programs within the next three years, the majority of which are 
            expected to be achieved by the end of 1998.* 

   (bullet) Regional Profitability. CCL presently believes that it has the 
            leading market share among independent clinical laboratories in 
            most routine testing markets of the northeast, mid-Atlantic and 
            midwest regions. Approximately 65% of CCL's revenues and almost 
            all of its EBITDA is generated from markets in which CCL believes 
            that it has the leading market share. In most of these markets, 
            CCL believes that it also is the lowest cost provider. CCL is 
            evaluating its strategic alternatives relative to units whose 
            profitability does not meet its internal goals. These 
            alternatives may include joint ventures, alliances, or 
            dispositions. CCL believes that, while the clinical laboratory 
            industry is becoming national in scope, CCL can subcontract with 
            other clinical laboratories to perform testing for national 
            accounts in any markets in which CCL chooses not to compete. CCL 
            may also make selected local acquisitions where appropriate. 


   Leading Innovator. CCL intends to remain a leading innovator in the 
clinical laboratory industry by continuing to introduce new tests, technology 
and services. Through its relationship with the academic community and 
pharmaceutical and biotechnology firms and a research and development budget 
exceeding $15 million per year, CCL believes it is one of the leaders in 
transferring innovation from academic biotechnology laboratories to the 
market. For example, CCL (through its subsidiary Nichols) believes that it is 
currently the only clinical laboratory that is using both molecular signal 
amplification (branched DNA) and polymerase chain reaction (PCR) technologies 
for HIV testing. These technologies permit the detection of lower levels of 
HIV than can be achieved using other technologies, which in turn permits 
health care providers to better tailor drug therapies for HIV-infected 
patients. Nichols continues to be one of the leading esoteric testing 
laboratories in the world. Nichols serves approximately 2,000 of the 
country's estimated 6,400 hospitals and counts among its largest customers 
both LabCorp and SmithKline. CCL hopes to leverage Nichols' existing 
relationships with hospitals into increased routine testing to hospitals, 
which continue to perform over half of the clinical laboratory testing in the 
United States. 
    

   
The Clinical Laboratory Testing Industry 
    

   
   Clinical testing is a critical component in the delivery of quality health 
care service to patients. Currently, clinical laboratory testing is the first 
step in determining how a significant amount of all health care dollars are 
spent. Laboratory tests and procedures are used generally by physicians and 
other health care providers to assist in the diagnosis, evaluation, 
monitoring and treatment of diseases and other medical conditions through the 
measurement and analysis of chemical and cellular components in blood, 
tissues and other specimens. Clinical laboratory testing is generally 
categorized as either clinical testing, which is performed on body fluids 
such as 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. Most clinical laboratory tests ordered 
by health care providers are considered "routine" and can be performed by 
most independent clinical laboratories, while "esoteric" tests (which 
generally require more sophisticated equipment, materials and personnel) are 
generally referred to laboratories, such as the Nichols facility in San Juan 
Capistrano, that specialize in such tests. 
    

   
   CCL believes that in 1995 the entire United States clinical laboratory 
industry had revenues exceeding $30 billion. The clinical laboratory industry 
consists primarily of three types of providers: hospital-affiliated 
laboratories, independent clinical laboratories, such as those owned by CCL, 
and physician-office laboratories. CCL believes that in 1995 approximately 
56% of the clinical testing revenues in the United States were attributable 
to hospital-affiliated laboratories, approximately 36% were attributable to 
independent clinical laboratories and approximately 8% were attributable to 
physicians in their offices and laboratories. 
    

   
   CCL believes that consolidation will continue in the clinical laboratory 
testing business. In addition, CCL believes that it and the other large 
independent clinical laboratory testing companies may have the opportunity 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 
    

   
- ------------- 

*     This is a forward looking statement. See "--Cautionary Statement for
      Purposes of the 'Safe Harbor' Provisions of the Private Securities
      Litigation Reform Act of 1995." In particular see factors (a), (b), (c),
      (d), (f) and (i).

                                       58
<PAGE> 
    

   
referrals and the ownership of laboratories as well as increased regulation 
of laboratories are expected to contribute to the continuing consolidation of 
the industry. 
    

   CCL believes that a number of factors are likely to positively influence 
the volume of clinical laboratory testing performed in the United States in 
the future, including (1) the general aging of the population in the United 
States; (2) an expanded base of scientific knowledge which has led to the 
development of more sophisticated specialized tests and an increase in the 
awareness of physicians of the value of clinical laboratory testing as a 
cost-effective means of early detection of disease and monitoring of 
treatment; (3) 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; (4) expanded substance-abuse testing 
by corporations and governmental agencies; and (5) increased testing for 
sexually transmitted diseases such as AIDS. The impact of these factors is 
expected to be offset in part by increased controls over the utilization of 
clinical laboratory tests by both Medicare and the private sector, 
particularly managed care organizations. 

   CCL believes that the clinical laboratory industry will continue to be 
subject to pricing pressures as a result of (1) continued growth of the 
managed care sector; (2) a shift toward capitated payment contracts within 
the managed care sector; and (3) decreases in Medicare reimbursement rates. 
In addition, increased regulatory requirements in the billing of Medicare are 
expected to result in reimbursement reductions and additional costs to 
clinical laboratory testing companies in the United States. CCL has 
formulated strategies to address these challenges. See "--Business Strategy." 

Services Provided by CCL 

   CCL's laboratory business is comprised of routine testing, which CCL 
management estimates currently generates approximately 88% of CCL's net 
revenues; and esoteric testing, which is performed at the Nichols facility in 
San Juan Capistrano and which CCL management estimates generates 
approximately 10% of CCL's net revenues. The balance of CCL's net revenues is 
derived principally from the manufacture of clinical laboratory test kits. 

   Routine Testing Services and Operations. Routine tests, which are 
performed at CCL's regional laboratories, include procedures in the area of 
blood chemistry, hematology, urine chemistry, virology, tissue pathology and 
cytology. Commonly ordered individual tests include red and white blood cell 
counts, Pap smears, blood cholesterol level tests, AIDS-related tests, 
urinalyses, pregnancy tests, and alcohol and other substance-abuse tests. 
Routine test groups include tests to determine the function of the kidney, 
heart, liver and thyroid, as well as other organs, and several health screens 
that measure various important bodily health parameters. 

   CCL provides services through 17 regional laboratories located in major 
metropolitan areas throughout the United States, as well as 14 branch 
laboratories, approximately 200 STAT laboratories and 850 patient service 
centers. CCL also operates a branch laboratory in Mexico. Regional 
laboratories offer a full line of routine clinical testing procedures. "STAT" 
laboratories are local laboratory facilities where CCL can quickly perform 
and report results of certain routine tests for customers that require such 
emergency testing services. "Branch laboratories" have a test menu that is 
smaller than that of regional laboratories but larger than that of STAT 
laboratories. A "patient service center" is a facility maintained by CCL, 
typically in or near a medical professional building, to which patients can 
be referred by physicians for specimen collection. 

   CCL operates 24 hours a day, 365 days a year, utilizing a fully integrated 
collection and processing system. CCL generally performs and reports most 
routine procedures within 24 hours, employing a variety of sophisticated and 
computerized laboratory testing instruments. On an average work day, CCL 
processes approximately 220,000 requisitions. CCL provides daily pickup of 
specimens from most customers principally through an in-house courier system. 
The specimens are sent to one of CCL's laboratories (generally a regional or 
branch laboratory) where one or more tests are performed. 

   Each patient specimen is accompanied by a test requisition form, which is 
completed by the customer, that indicates the tests to be performed and 
provides the necessary billing information. Each specimen and related 
requisition form is checked for completeness and then given a unique 
bar-coded identification number. The unique identification number assigned to 
each specimen helps to assure that the results are attributed to the correct 
patient. The requisition form is sent to a data entry department 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 type of testing 
equipment involved. Most of CCL's computerized testing equipment is directly 
linked with CCL's information systems. Most routine testing is performed and 
completed during the evening following receipt of the specimens to be tested, 
and test results are readied 

                                       59
<PAGE> 

for distribution the following morning either electronically or by service 
representatives. Many customers have local printer capability enabling 
laboratory medical reports to be printed in their offices. Customers who 
request that they be called with a result are so notified in the morning. It 
is CCL's policy to notify the customer immediately if a life- threatening 
result is found at any point during the course of the testing process. 

   Esoteric Testing Services and Operations. Through Nichols, CCL operates 
one of the leading esoteric clinical testing laboratories in the world. 
Esoteric tests are performed in cases where the information provided by 
routine tests is not specific enough or is inconclusive as to the existence 
or absence of disease or when a physician requires more information. 
Typically, unlike routine testing, only one test is performed per 
requisition. The logistics for esoteric testing are similar to that for 
routine testing except that, due to the complexity of the testing, 
approximately 60% of the tests are performed within 24 hours, with almost all 
of the rest being performed within one week. During 1995 Nichols performed 
approximately 3.9 million esoteric tests, of which 77% were referred by 
sources other than CCL regional laboratories. 

   Esoteric tests generally require more sophisticated equipment and 
materials as well as more highly skilled personnel to perform test procedures 
and analyze results than what is required for routine testing. Consequently, 
esoteric tests are generally priced substantially higher than routine tests. 
New medical discoveries lead to the development of new esoteric tests. 
However, over time esoteric tests may become routine tests as a result of 
improved technology or increased volume. The volume of esoteric tests 
required by most health care providers, including hospitals, is relatively 
low compared to the volume of routine tests. Because it is generally not cost 
effective for such health care providers to perform the low volume of 
esoteric tests in-house, a significant portion of esoteric tests are referred 
to clinical laboratories like Nichols that specialize in such tests. Some 
examples of esoteric testing procedures include capillary electrophoresis, 
cell culture technology, chemiluminescent immunoassays, certain enzyme 
immunoassays, flow cytometry, fluorescent in situ hybridization (FISH), 
inductively coupled plasma mass spectroscopy (ICPMS), molecular tissue 
pathology, molecular signal amplification (branched DNA), and polymerase 
chain reaction (PCR) technologies. 

   Nichols's laboratory is comprised of 18 individual laboratory departments, 
which in the aggregate offer approximately 1,400 individual tests or "assays" 
in such fields as endocrinology, genetics, immunology, microbiology, 
molecular biology, oncology, serology, special chemistry and toxicology. 
Nichols believes that it has been one of the leaders in transferring 
technological innovation from academic biotechnology laboratories to the 
marketplace. Nichols was the first to introduce a number of esoteric tests, 
including immunoassay methods for measurement of circulating hormone levels 
and sensitive tests to predict breast cancer prognosis. Among more recent 
developments have been tests to detect a variety of tumor types, a common 
form of mental retardation, leukemia, cystic fibrosis, osteoporosis, 
hepatitis and neurological disorder and to monitor success of therapy in 
cancer and AIDS. The branched DNA and PCR technologies can be applied to a 
variety of infectious agents and permit the detection of lower levels of HIV 
than can be achieved under other technologies. The ability to measure the 
amount of HIV permits health care providers to better tailor drug therapies 
for HIV-infected patients. As part of its research and development efforts, 
Nichols maintains a relationship with the academic community through its 
Academic Associates program, under which approximately sixty scientists from 
academia and biotechnology firms work directly with Nichols's staff 
scientists to monitor and consult on existing test procedures and develop new 
esoteric test methods. In addition, Nichols relies on internal resources for 
the development of new tests as well as on license arrangements and co- 
development agreements with biotechnology companies and academic medical 
centers. 

   Nichols also provides clinical laboratory testing in connection with 
pre-marketing clinical trials of pharmaceutical drugs. This testing is 
competitive with the testing performed by a subsidiary of Covance and is 
expected to continue in the future. CCL management estimates that net 
revenues from such testing accounted for less than 1% of CCL's net revenues 
in 1995. 

   Diagnostics. Through its Nichols Institute Diagnostics ("NID") 
subsidiaries, which were acquired as a result of the acquisition of Nichols 
Institute in August 1994, CCL manufactures and markets clinical laboratory 
kits primarily for esoteric testing. Test kits are sold principally to 
hospital and clinical laboratories. 

Customers and Payors 

   CCL provides testing services to a broad range of health care providers. 
The primary types of customers served by CCL are as follows: 

   Independent Physicians and Physician Groups. Physicians requesting testing 
for their patients who are unaffiliated with a managed care plan remain the 
principal source of CCL's clinical laboratory business. Fees for 

                                       60
<PAGE> 

clinical laboratory testing services rendered for these physicians are billed 
either to the physician, to the patient, or to the patient's third-party 
payor such as insurance companies, Medicare and Medicaid. In four states, 
including New York and Michigan, CCL is required to bill patients directly. 
The clinical laboratory industry is supporting legislative efforts to expand 
direct patient billing. Billings are typically on a fee-for-service basis. If 
the billings are to the physician, they are based on the laboratory's 
wholesale or customer fee schedule and are typically subject to negotiation. 
Otherwise, the billings are based on the laboratory's retail or patient fee 
schedule, subject to limitations on fees imposed by third parties and to 
negotiation by physicians on behalf of their patients. Medicare and Medicaid 
billings are based on fee schedules set by governmental authorities. See 
"--Regulation and Reimbursement." 

   HMOs and Other Managed Care Groups. HMOs and other managed care 
organizations typically contract with a limited number of clinical 
laboratories and then designate the laboratory or laboratories to be used for 
tests ordered by their participating physicians. In an effort to control 
costs, the managed care groups generally negotiate discounts to the fees 
usually charged by such laboratories. Most testing for managed care 
organizations is being performed on a capitated basis. Under a capitated 
payment contract, the clinical laboratory and the managed care organization 
agree to a monthly payment per covered individual to cover all laboratory 
tests during the month, regardless of the number or cost of tests actually 
performed. Such contracts shift the risks of additional routine testing 
beyond that covered by the capitated payment to the clinical laboratory. In 
certain cases, however, the monthly payment may be subject to prospective or 
retroactive adjustment if the number of tests performed exceeds (or is less 
than) certain thresholds. The types of tests covered by capitated contracts 
are negotiated for each contract, with esoteric tests and anatomic pathology 
services generally not being covered under the capitation rate. Large 
regional and national HMOs and preferred provider organization networks 
typically prefer to utilize large independent clinical laboratories such as 
CCL that can service the managed care groups on a national or regional basis. 
See "--Effect of the Growth of the Managed Care Sector on the Clinical 
Laboratory Business." 

   Hospitals. CCL serves approximately 3,000 hospitals with services that 
vary from providing esoteric testing to management contracts, where CCL 
manages the hospital's laboratory for a fee. Hospitals generally maintain an 
on-site laboratory to perform testing on patients receiving care and refer 
less frequently needed procedures to outside laboratories. Hospitals are 
typically charged for such tests a negotiated fee-for-service which is based 
on the laboratory's customer fee schedule. Some hospitals actively encourage 
community physicians to send their testing to the hospital's laboratory. In 
addition, some hospitals have been purchasing physician practices and 
requiring that the physicians/employees send their testing to the hospital's 
affiliated laboratory. As a result, hospital-affiliated laboratories can be 
both a customer and a competitor for independent clinical laboratories such 
as CCL. 

   Other Institutions. CCL also serves other institutions, including 
governmental agencies, such as the Department of Defense and prison systems, 
large employers and independent clinical laboratories that do not have the 
full range of CCL's testing capabilities. These institutions are typically 
charged on a negotiated or bid fee-for- service basis. CCL's services to 
employers principally involve the provision of substance abuse testing 
services. 

   In 1995, no single customer or affiliated group of customers accounted for 
more than 2% of CCL's net revenues. CCL believes that the loss of any one of 
its customers would not have a material adverse effect on CCL's results of 
operations or cash flows. 

   Payors. Most clinical laboratory testing is billed to a party other than 
the "customer" that ordered the test. Tests performed for various patients of 
a single physician may be billed to different payors besides the ordering 
physician, including third-party payors (generally an insurance company or 
managed care organization), Medicare, Medicaid or the patient. 

   The following table sets forth current estimates of the breakdown by payor 
of CCL's total volume of requisitions and average approximate revenues per 
requisition: 

<TABLE>
<CAPTION>
                                             Requisition Volume as 
                                                  % of Total        Revenue Per Requisition 
                                             --------------------- ------------------------- 
<S>                                                   <C>                   <C>
Patient                                                5%-10%               $60-$80 
Medicare & Medicaid                                   20%-25%               $20-$25 
Monthly Bill 
 (Physician, Hospital, Employer, Other)               35%-40%               $15-$35 
Third Party Fee-For-Service                           15%-20%               $30-$40 
Managed Care--Capitated                               15%-20%               $ 5-$15 
</TABLE>

                                       61
<PAGE> 

   For a discussion of the mix shift and the impact of the managed care 
sector on volume and price trends, see "--Effect of the Growth of the Managed 
Care Sector on the Clinical Laboratory Business." 

   
   Average Revenue per Requisition Trends. Since the fourth quarter of 1995, 
declines in CCL's average revenue per requisition have moderated. Average 
revenue per requisition for the quarter ended September 30, 1996 was 
approximately 1.7% below the comparable period in 1995. This decline in 
revenue per requisition was smaller than the approximate 4.8% and 3.6% 
decline experienced in the first and second quarters of 1996, respectively. 
Since August of 1995, the company-wide average revenue per requisition has 
remained relatively stable and is effectively unchanged during the first 
three quarters of 1996. This trend is illustrated by the following chart: 
    

[REPRESENTATION OF A LINE CHART GRAPHIC]

Average Revenue per Requisition as a Percentage
of December 1994 Revenue per Requisition

Q1/95  98.6
Q2/95  97.6
Q3/95  95.8
Q4/95  95.1
Q1/96  93.9
Q2/96  94.1
Q3/96  94.2

   
Sales and Marketing 
    

   CCL markets and services its customers through its direct sales force of 
approximately 430 sales representatives, 300 account representatives and 
2,200 couriers. 

   Most sales representatives market the mainstream or traditional routine 
laboratory services primarily to physicians, while others concentrate on 
individual market segments, such as hospitals or managed care organizations, 
or on testing niches, such as substance abuse testing. CCL's sales 
representatives are compensated through a combination of salaries, 
commissions and bonuses, at levels commensurate with each individual's 
qualifications and responsibilities. Commissions are based primarily upon the 
individual's results in generating new business for CCL. CCL is currently 
changing its commission structure so that compensation is tied to the 
profitability of (rather than revenues from) new business. See "--Business 
Strategy--Preferred Provider." 

   CCL's account representatives interact with customers on an ongoing basis. 
Account representatives monitor the status of services being provided to 
customers, act as problem-solvers, provide information on new testing 
developments and serve as the customer's regular point of contact with CCL. 
Account representatives are compensated with a combination of salaries and 
bonuses commensurate with each individual's qualifications and 
responsibilities. 

   CCL 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, integrated health delivery systems, insurance plans, 
employers and by patients themselves. In view of these changes, CCL has 
completed a rigorous regional market strategy process and has reorganized its 
sales and marketing organization structure to support these strategies and 
emerging customers. 

                                       62
<PAGE> 

   CCL believes that, given the increasing regulation and complexity of the 
clinical laboratory marketplace, training of its sales force is of paramount 
importance. With this goal in mind, during 1995 CCL enhanced its 
comprehensive sales training program and compliance training. See 
"--Compliance Program." 

Effect of the Growth of the Managed Care Sector on the Clinical Laboratory 
Business 

   The managed care industry is growing as well as undergoing rapid 
consolidation which has created large managed care companies that control the 
delivery of health care services for millions of people, and have significant 
bargaining power in negotiating fees with health care providers, including 
clinical laboratories. CCL believes that there are potential opportunities 
for large, low-cost, clinical laboratories such as CCL to capture additional 
testing volume from managed care organizations. The larger regional and 
national managed care organizations typically prefer to utilize large 
independent clinical laboratories, like CCL, that can service their 
organizations on a national or a regional basis. In addition, smaller 
laboratories are unlikely to be able to achieve the low cost structures 
necessary to profitably service managed care organizations. 

   The growth of the managed care sector presents various challenges to 
independent clinical laboratories, including CCL. Managed care organizations 
typically negotiate capitated payment contracts, whereby the clinical 
laboratory receives a monthly fee per covered individual. The fixed monthly 
payment generally covers all laboratory tests (excluding certain tests, such 
as esoteric tests and anatomic pathology services) performed during the 
month, regardless of the number or cost of the tests performed. Unlike 
fee-for-service indemnity insurance, such contracts shift the risks of 
additional routine testing beyond that covered by the capitated payment to 
the clinical laboratory. In certain cases, however, the monthly payment may 
be subject to prospective or retroactive adjustment if the number of tests 
performed exceeds (or is less than) certain thresholds. CCL expects the 
amount of clinical laboratory testing performed for managed care 
organizations under capitated rate agreements to continue to grow. 

   Laboratory services agreements with managed care organizations have 
historically been priced aggressively due to competitive pressures 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-service 
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 level of pricing charged to managed care 
organizations, including under capitated payment contracts, if continued, may 
adversely affect the pricing of the clinical laboratory industry. 

   
   During the nine months ended September 30, 1996, services to managed care 
organizations under capitated rate agreements accounted for approximately 6% 
of CCL's net revenues from clinical laboratory testing and approximately 15% 
of the number of tests performed by CCL. CCL believes that the prices charged 
by the independent clinical laboratory testing companies to managed care 
organizations can and must be increased. CCL is currently reviewing its 
pricing structures for agreements with managed care organizations and intends 
to insure that all such agreements are profitably priced. However, there can 
be no assurance that CCL will be able to increase the prices charged to 
managed care organizations or that CCL will not lose market share in the 
managed care market to other clinical laboratories who continue to 
aggressively price laboratory services agreements with managed care 
organizations. CCL believes that the growth of the managed care sector 
presents both challenges and opportunities. CCL, as part of its preferred 
provider strategy, will seek to capitalize on the opportunity and meet the 
challenge by seeking to secure large-volume, profitable managed care 
contracts through providing low cost, high quality testing services at 
rational prices. 
    

   
Expansion Opportunities 
    

   
   CCL believes that there are several expansion opportunities. CCL believes 
that it can take advantage of these opportunities without incurring 
significant capital expenditures or deploying significant resources. 
    

   Hospital Alliances. In response to the growth of the managed care sector 
and the developments described under "--Effects of the Growth of the Managed 
Care Sector on the Clinical Laboratory Business," many health 

                                       63
<PAGE> 

care providers have established new alliances. Hospital-physician networks 
are emerging in many markets in order to offer comprehensive, integrated 
service capabilities, either to managed care plans or directly to employers. 

   Since CCL has traditionally derived a substantial portion of its esoteric 
testing revenues from referrals from hospitals, which perform approximately 
half of all clinical laboratory tests in the United States, CCL established a 
hospital business venture group whose primary goal is to develop additional 
nontraditional hospital arrangements, including management and consulting 
agreements, shared service arrangements and joint ventures. 

   Under federal cost containment legislation enacted in 1985, treatment 
provided to hospital inpatients covered by Medicare is classified into 
diagnosis-related groups ("DRGs") which prescribe the maximum reimbursable 
payments for all services, including laboratory testing services, provided on 
behalf of an inpatient under each DRG. As a result of this payment structure, 
and similar price constraints from managed care organizations and other 
third- party payors, hospitals have an economic incentive to seek the most 
cost-effective laboratory testing services for their patients. CCL believes 
that in many cases, by managing a hospital laboratory or entering into a 
joint venture with a hospital, CCL can improve a hospital laboratory's 
economic structure and preserve hospital capital that would be required for 
needed laboratory improvements while providing accurate and timely testing 
services due to greater economies of scale, increased utilization of 
expensive testing and data processing equipment through optimization of the 
mix between on-site and off-site testing and more efficient use of laboratory 
employees. CCL has several such arrangements with hospitals, including a 
joint venture with two hospitals in Erie, Pennsylvania that performs outreach 
testing and a management agreement with a group of approximately 25 hospitals 
in eastern Nebraska and Sioux City, Iowa. These two laboratory arrangements, 
which provide testing for both the hospitals and the commercial outreach 
markets in their geographical areas, serve as two of CCL's laboratory 
facilities. CCL also manages the laboratories at several hospitals in the 
eastern United States. However, despite the potential cost savings and 
additional revenues available to hospitals through such arrangements, CCL 
believes that only a small percentage of the hospitals in the United States 
have entered into such arrangements with independent clinical laboratories. 
Nonetheless, CCL expects to enter into alliances with various hospitals in 
the future and believes that this market has potential. As an alternative 
service for hospitals that are entering into integrated delivery systems, CCL 
is beginning to market consulting support and technical solutions for 
integrating diverse laboratory infrastructures, systems and data. 

   Employer Market. CCL is considering expanding its business in the employer 
market to include the provision of laboratory services to large employers on 
a basis comparable to that offered to managed care organizations, whereby 
laboratory services paid under self-insured indemnity plans may be relatively 
fixed (rather than on a fee- for-service basis). These services could be 
offered in alliance with other service providers, including pharmaceutical 
benefits and diagnostic imaging services. CCL recently organized National 
Imaging Associates Inc. ("NIA"), a company offering diagnostic imaging 
benefit management services to employers, payors and managed care 
organizations. NIA seeks to carve out the imaging component of a health care 
plan service offering and manage it at lower cost through utilization 
controls and provider price concessions. 

   
   Medical Information.  The market need for medical information, 
particularly disease-specific information about provider practices and 
patient care, is growing rapidly. Large customers of clinical laboratories 
are increasingly interested in using information from clinical laboratory 
data on their covered population to answer financial, marketing and quality 
related questions. Integrated data from clinical laboratories and other 
health encounters provides additional insights to these questions. To meet 
these emerging needs, CCL created the Corning Medical Informatics ("CMI") 
division which focuses solely on the medical information needs of managed 
care organizations, integrated healthcare delivery networks and other large 
customers. Through internal development, CCL now has a portfolio of 
information products based primarily upon its extensive database. A 
combination of advanced information technology and experienced analytical and 
data integration skills provides the platform for delivery of these products. 
    

   
   As market interest has increased, the CMI division has devoted experienced 
account executives to work with customers to meet their information needs. 
Current information products include provider profiles and benchmarks, 
high-risk patient registries based on customer disease management 
initiatives, normative comparisons with other populations, and quantitative 
clinical outcomes based on laboratory measures. CCL believes that health care 
customers will increasingly see value in the information obtained from 
clinical laboratory results. 
    

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<PAGE> 

Information Systems 

   The need for information systems to support laboratory, billing, customer 
service, logistics, medical data, and other business requirements is 
significant and will continue to place high demands on CCL's information 
systems staff. CCL has historically not standardized the billing, laboratory 
and other information systems at laboratories that it has acquired. As a 
result, CCL has numerous different information systems to handle billing, 
test result reporting and financial data and transactions. CCL believes that 
the efficient handling of information involving customers, patients, payors, 
and other parties will be critical to CCL's future success. 

   
   To this end, CCL has chosen standard billing and laboratory systems. 
During the third quarter 1996, CCL recorded a charge of $13.7 million to 
write off the development costs of what was intended as a new company-wide 
billing system. Management now plans to standardize using a SYS billing 
system which has already been implemented in seven of its 22 billing sites, 
which seven sites account for 35% of CCL's net revenues. The standard 
laboratory system is already operational in nine of its 22 billing sites, 
which account for 30% of CCL's net revenues. Such sites are not necessarily 
the same sites as those with standard billing systems. CCL is beginning to 
convert the remaining nonstandard billing and laboratory systems to the 
standard systems, prioritized on an impact basis. The most critical 
conversions will be completed within three years. The New York/New Jersey 
(Teterboro) laboratory is the first priority. The conversion costs are 
expected to average approximately $3 million per billing system and $1 
million to $3 million per laboratory system. 
    

   CCL is developing systems that will permit managed care organizations and 
other providers to have electronic access to test orders and results for 
participating physicians, which will permit managed care organizations to 
better monitor and control the utilization of testing services. 

Billing 

   Billing for laboratory services is a complicated process. Laboratories 
must bill different payors such as doctors, patients, insurance companies, 
Medicare, Medicaid and employer groups, all of whom have different billing 
requirements. CCL believes that less than 30% of its bad debt expense is 
attributable to specific credit or payment issues of its customers. The 
remainder of the bad debt expense is the result of many 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. Typically approximately one-third of the requisitions that 
CCL receives either do not provide all the necessary data or provide 
incorrect data. CCL believes that this experience is similar to that of its 
primary competitors. CCL performs the requested tests and reports back the 
test results regardless of whether billing information has been provided at 
all or has been provided incorrectly. CCL 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 pricing differences between the fee schedules of CCL and 
the payor, 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 to bad debt expense. 

   
   CCL's bad debt expense has increased each year since 1993 due principally 
to four developments that have further complicated the billing process: (1) 
increased complexity in the health care system; (2) increased requirements in 
complying with fraud and abuse regulations; (3) deterioration in 
reimbursement as the payor mix shifts; and (4) changes in Medicare 
reimbursement policies. These four factors have placed additional 
requirements on the billing process, including the need for specific test 
coding, additional research on processing rejected claims that comply with 
prior practices, increased audits for compliance, and management of a large 
number of contracts which have very different information requirements for 
pricing and reimbursement. See "Management's Discussion and Analysis of 
Financial Condition and Results of Operation of CCL." CCL's billing has also 
been hampered by the existence of multiple billing information systems. In 
1995 CCL had severe billing problems at its largest laboratory site in 
Teterboro, New Jersey. A new billing information system developed with 
outside consultants experienced significant implementation problems, 
including excessive downtime, which severely impacted CCL's ability to 
efficiently bill for its services from the Teterboro location. The problem 
was compounded by a lack of experienced staff as the result of work force 
reductions made to meet cost reduction initiatives undertaken in anticipation 
of greater efficiencies from the new billing information system. As a result 
of all of these factors, CCL recorded a charge to bad debt of $62 million in 
the third quarter of 1995. Of this amount, approximately $34 million was 
attributable to the Teterboro location. At the time of charge, the backlog of 
unbilled requisitions was estimated 
    

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at over 2 million requisitions and DSOs for the clinical testing business 
were 90 days. In addition, significant backlogs existed in (1) reconciling 
cash received to payment of specific bills, (2) rejected claims that needed 
to be researched and (3) correspondence from customers attempting to resolve 
billing problems. 

   
   Integration of a standardized billing system is a priority of CCL and CCL 
is in the process of integrating a billing system with proven reliability 
throughout its network. The SYS system is in use at seven of CCL's 
laboratories. Its reliability is evidenced by both the improvement in the 
laboratories' bad debt experience after SYS was implemented and the improved 
capability to handle new billing requirements as compared with non-SYS 
laboratories, such as Teterboro. For example, bad debt expense for the 
nine months ended September 30, 1996 for the combined SYS laboratories is 
6.4% of sales, versus 7.1% for all other laboratories combined. The use of a 
standard system will also provide for operational efficiencies as redundant 
programming efforts are eliminated and the ability to consolidate billing 
sites will become more feasible. See "--Information Systems." Standardizing 
billing systems presents conversion risk to CCL as key databases and 
masterfiles are transferred to the SYS system and because the billing 
workflow is interrupted during the conversion, which may cause backlogs. CCL, 
however, has already completed seven conversions to this system and has 
retained key people who have been involved in those conversions. 
    

   
   CCL has focused on improving its billing operations in the last year. Over 
the last twelve months, the backlog of unbilled requisitions has been reduced 
by approximately 30%, DSOs for the clinical testing business have been 
reduced to 74 days, bad debt expense as a percentage of net revenues has 
decreased, the percentage of requisitions received with missing billing 
information has been reduced by approximately 30% and backlogs in rejected 
claims, unapplied cash and customer correspondence have been significantly 
reduced. These improvements were achieved in spite of a higher level of 
information requirements necessary for correct billing, especially those 
bills relating to Medicare. However, additional requirements to provide 
documentation of the "medical necessity" of testing have added to the backlog 
of unbilled receivables and caused third quarter 1996 bad debt expense as a 
percentage of revenues to increase above the rate CCL had experienced during 
the first two quarters of 1996. See "--Regulation and 
Reimbursement--Regulation of Reimbursement for Clinical Laboratory Services." 
    


Acquisitions and Dispositions 

   MetPath, CCL's predecessor, originally commenced operations in 1967 with 
laboratories only in the New York metropolitan area. Most of CCL's other 
regional laboratories have been added through acquisitions. Principally as 
the result of the acquisitions discussed below that were completed in 1993 
and 1994, CCL's revenues have almost tripled since 1991. However, this 
increase in revenues is not reflected in the CCL Financial Statements because 
several of the major acquisitions are accounted for as a pooling of 
interests. Acquisition activity has diminished significantly since May 1995, 
in part so that CCL could concentrate on the integration of the laboratory 
networks that had been acquired in 1993 and 1994. CCL may resume making 
acquisitions in the future, most likely focusing on acquisitions of smaller 
laboratories that can be folded into existing laboratories where CCL can 
expect to achieve significant cost savings and other benefits resulting from 
the elimination of redundant facilities and equipment and reductions in 
staffing or personnel. CCL is evaluating its strategic alternatives relative 
to units whose profitability does not meet its internal goals. These 
alternatives may include joint ventures, alliances or dispositions. However, 
there are no negotiations or definitive plans with respect to any such 
dispositions. 

   During 1994 Corning acquired three large clinical laboratory testing 
companies, each of which was accounted for as a pooling of interests. In June 
1994, Corning acquired Maryland Medical Laboratory, Inc. ("MML"), a regional 
laboratory based in Baltimore, Maryland with approximately $90 million in 
annual revenues. In August 1994, Corning acquired the stock of Nichols 
Institute, a national esoteric clinical laboratory with approximately $280 
million in annual revenues. In October 1994, Corning acquired Bioran, a 
regional laboratory based in Cambridge, Massachusetts with approximately $65 
million in annual revenues. 

   In August 1993, Corning acquired Damon, a national clinical testing 
laboratory with approximately $330 million in annualized revenue. The 
acquisition was accounted for as a purchase. The assets of Damon's 
California- based laboratories were sold in April 1994 to Physicians Clinical 
Laboratory Inc. In November 1993, CCL acquired the clinical testing 
laboratories of Unilab in Dallas, Denver and Phoenix, in exchange for CCL's 
then 43% ownership of Unilab and the assumption of approximately $70 million 
of indebtedness of Unilab. In a separate transaction, CCL transferred to 
Unilab CCL's investment in J.S. Pathology PLC, a clinical testing laboratory 
based in the United Kingdom, in exchange for a small equity interest in 
Unilab. CCL currently owns approximately 4% of Unilab's 

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outstanding common stock. In May 1993, Corning acquired and contributed to 
CCL DeYor Laboratory Inc., a regional laboratory based in Ohio, Pennsylvania 
and Tennessee with approximately $20 million of annual revenues. This 
transaction was accounted for under the pooling of interests method, although 
CCL's consolidated financial statements for prior periods have not been 
restated since this acquisition is not material. See Note 3 to the Audited 
CCL Financial Statements. In addition to the acquisitions discussed above, 
since January 1993 CCL has acquired approximately 25 other smaller clinical 
laboratories and customer lists, principally in assets acquisitions. Only one 
such acquisition has been completed since May 1995. 

Competition 

   The clinical laboratory testing business is intensely competitive. CCL 
believes that in 1995 the entire United States clinical laboratory testing 
industry had revenues exceeding $30 billion; approximately 56% of such 
revenues were attributable to hospital-affiliated laboratories, approximately 
36% were attributable to independent clinical laboratories and approximately 
8% 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: CCL, SmithKline, National 
Health Laboratories Inc. ("NHL"), Roche Biomedical Laboratories Inc. 
("Roche"), Damon, Allied Clinical Laboratories Inc. ("Allied") and Nichols 
Institute. In April 1995 Roche merged into NHL (under the name LabCorp), 
which had acquired Allied in June 1994. CCL acquired Nichols Institute in 
August 1994 and Damon 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: CCL, which had approximately $1.63 billion in revenues 
from clinical laboratory testing in 1995; LabCorp, which had approximately 
$1.68 billion in revenues from clinical laboratory testing in 1995 on a pro 
forma basis, after giving effect to the April 1995 merger of Roche into NHL; 
and SmithKline, which had approximately $1.29 billion in revenues from 
clinical laboratory testing in 1995. Both LabCorp and SmithKline are 
affiliated with large corporations that have greater financial resources than 
CCL. SmithKline is wholly owned by SmithKline Beecham Ltd. and R. Hoffman La 
Roche S.A. beneficially owns approximately 49.9% of the outstanding capital 
stock of LabCorp. 

   In addition to the three national clinical laboratories, CCL competes on a 
regional basis with many smaller regional independent clinical laboratories 
as well as laboratories owned by hospitals and physicians. CCL has the 
leading market share in most of the northeast, mid-Atlantic and midwest 
routine testing markets, while its market share is much lower in the routine 
testing market in the rest of the country. Approximately 65% of CCL's net 
revenues and almost all of its EBITDA currently is generated from markets in 
which CCL believes that it has the largest market share. In most of these 
markets CCL believes that it also is the lowest cost provider. CCL does not 
generally compete in the California routine testing market other than in the 
San Diego metropolitan area. 

   CCL believes that 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. CCL 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 "--Business 
Strategy." 

   CCL believes that consolidation will continue in the clinical laboratory 
testing business. In addition, CCL 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. 

Quality Assurance 

   CCL maintains a comprehensive quality assurance program for all of its 
laboratories and patient service centers. The goal is to ensure optimal 
patient care by continually improving the processes used for collection, 
storage and transportation of patient specimens, as well as the precision and 
accuracy of analysis and result reporting. 

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<PAGE> 

   The CCL quality assurance efforts focus on: proficiency testing, process 
audits, statistical process control, credentialing and personnel training. 

   Internal Quality Control and Audits. Quality control samples are processed 
in parallel with the analysis of patient specimens. The results of tests on 
such samples are then monitored to identify drift, shift or imprecision in 
the analytical processes. In addition, CCL administers an extensive internal 
program of "blind" proficiency testing. These samples are processed through 
the CCL system as routine patient samples, unknown to the laboratory as 
quality control samples. Samples are then handled, processed and reported 
with patient specimens. This provides a system to assure accuracy of the 
entire pre- and post-analytical testing process. Another element of the CCL 
comprehensive quality assurance program includes performance of internal 
process audits. 

   External Proficiency Testing and Accreditation. All CCL laboratories 
participate in numerous externally conducted, blind sample quality 
surveillance programs. These include proficiency testing programs 
administered by the College of American Pathologists ("CAP"), as well as many 
state agencies. These programs supplement all other quality assurance 
procedures. 

   All CCL laboratories are accredited by CAP. Accreditation includes on-site 
inspections and participation in the CAP Proficiency Test Program. CAP is an 
independent nongovernmental organization of board certified pathologists that 
offers an accreditation program to which laboratories may voluntarily 
subscribe. CAP is approved by HCFA to inspect clinical laboratories to 
determine compliance with the standards required by the Clinical Laboratory 
Improvement Amendments of 1988 ("CLIA"). 

Regulation and Reimbursement 

   Overview. The clinical laboratory industry is subject to significant 
governmental regulation at the federal and state levels. All CCL laboratories 
and patient service centers are appropriately licensed and accredited by 
various state and federal agencies. 

   The health care industry is undergoing significant change as third-party 
payors, such as Medicare (which principally serves patients 65 and older), 
Medicaid (which principally serves indigent patients), private insurers and 
large employers 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, CCL 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. CCL 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 CCL's 
business and operations. 

   Regulation of Clinical Laboratory Operations. The CLIA standards were 
designed to ensure that all clinical laboratory testing services are 
uniformly accurate and of high quality by using a single set of requirements. 
On February 28, 1992, the final rules implementing CLIA were published in the 
Federal Register. These regulations extended federal oversight, with few 
exceptions, to virtually all clinical laboratories regardless of size, type, 
location or ownership of the laboratory. The regulations generally became 
effective in 1992. However, certain quality control and proficiency testing 
requirements are still being phased in. The standards for laboratory 
personnel, quality control, quality assurance and patient test management are 
based on complexity and risk factors. Laboratories categorized as "high" 
complexity are required to meet more stringent requirements than either 
"moderate" or "waived" (tests regarded as having a low potential for error 
and requiring little or no oversight) laboratories. 

   Most of the CCL laboratories are categorized as high complexity and these 
laboratories are in compliance with the more stringent standards for 
personnel, quality control, quality assurance and patient test management. A 
few CCL laboratories are categorized as moderate complexity (some STAT 
laboratories) or waived (only patient service centers). 

   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 or criminal penalties. The 
loss of a 

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<PAGE> 

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 CCL. 

   CCL is also subject to state regulation. CLIA permits states to adopt 
regulations that are more stringent than federal law. For example, state law 
may require that laboratory personnel meet certain more stringent 
qualifications, specify certain quality control standards, maintain certain 
records and undergo additional proficiency testing. For example, certain of 
CCL's laboratories are subject to the State of New York's clinical laboratory 
regulations, which contain provisions that are significantly more stringent 
than federal law. 

   CCL believes it is in material compliance with the foregoing standards. 
See "--Compliance Program." 

   Drug Testing. Drug testing for public sector employees is regulated by the 
Substance Abuse and Mental Health Services Administration ("SAMHSA") 
(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 CCL's 
laboratories perform such testing, each must be certified by HHS as meeting 
SAMHSA standards. Seven of CCL's laboratories are SAMHSA certified. 

   Controlled Substances. The use of controlled substances in testing for 
drug abuse is regulated by the federal Drug Enforcement Administration 
("DEA"). All CCL laboratories using controlled substances for testing 
purposes are licensed by the DEA. 

   Medical Wastes and Radioactive Materials. CCL is subject to licensing and 
regulation under federal, state and local laws relating to the handling and 
disposal of medical specimens and hazardous waste and radioactive materials 
as well as to the safety and health of laboratory employees. All CCL 
laboratories are operated in material compliance with applicable federal and 
state laws and regulations relating to disposal of all laboratory specimens. 
CCL utilizes outside vendors for disposal of specimens. Although CCL believes 
that it is currently in compliance in all material respects with such 
federal, state and local laws, failure to comply could subject CCL to denial 
of the right to conduct business, fines, criminal penalties and other 
enforcement actions. 

   Occupational Safety. In addition to its comprehensive regulation of safety 
in the workplace, the federal Occupational Safety and Health Administration 
("OSHA") 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 chemicals and 
transmission of blood-borne and airborne pathogens. 

   Specimen Transportation. Regulations of the Department of Transportation, 
the Public Health Service and the Postal Service apply to the surface and air 
transportation of clinical laboratory specimens. 

   Regulation of Reimbursement for 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 would be 
paid under the Medicare fee schedule. Laboratories must bill the program 
directly and must accept the scheduled amount as payment in full for most 
tests performed on behalf of Medicare beneficiaries. In addition, state 
Medicaid programs are prohibited from paying more (and in most instances, pay 
significantly less) than the Medicare fee schedule for clinical laboratory 
testing services furnished to Medicaid recipients. In 1995, CCL derived 
approximately 20% and 3% of its net revenues from tests performed for 
beneficiaries of Medicare and Medicaid programs, respectively. Since 1984, 
Congress has periodically reduced the ceilings on Medicare reimbursement to 
clinical laboratories from previously authorized levels. In 1993, pursuant to 
the Omnibus Budget and Reconciliation Act of 1993 ("OBRA '93"), Congress 
reduced, effective January 1, 1994, the Medicare national fee schedule 
limitations from 88% of the 1984 national median to 76% of the 1984 national 
median, which reductions were phased in from 1994 through 1996 (to 84% in 
1994, 80% in 1995 and 76% in 1996, in each case as a percentage of the 1984 
national median). 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. 
Medicare reimbursement reductions have a direct adverse effect on CCL's net 
earnings and cash flows. CCL cannot predict if additional Medicare reductions 
will be implemented. The Senate and House Medicare proposal (the Medicare 
Preservation Act of 1995) passed in October 1995 would have reduced the 
national limitation 

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<PAGE> 

to 65% beginning in 1997 and would have eliminated all annual consumer price 
index adjustments through 2002. This reduction in laboratory reimbursement 
rates was retained in the House-Senate conference report agreed upon in 
November 1995. The President vetoed this bill in December 1995. 

   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. An additional allowance of $0.50 per test is authorized when more 
than 19 tests are billed in a panel. 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 many 
commonly ordered tests. CCL expects to incur additional reimbursement 
reductions and additional costs associated with the implementation of these 
requirements of HCFA and Medicare carriers. The amount of the reductions in 
reimbursements and additional costs cannot be determined at this time. See 
"--Billing." 

   
   Major clinical laboratories, including CCL, use dual fee schedules: 
"client" fees charged to physicians, hospitals, and institutions with which a 
laboratory deals on a bulk basis and "patient" fees charged to individual 
patients and third-party payors, including Medicare and Medicaid, who 
generally require separate bills or claims for each requisition. Medicare and 
other third party payors also set maximum fees that they will pay which are 
substantially lower than the patient fees otherwise charged by CCL, but are 
generally higher than CCL's client fees, which may be subject to negotiation 
or discount. Federal and some state regulatory programs prohibit clinical 
laboratories from charging government programs more than certain charges to 
other customers. During 1992, in issuing final regulations implementing the 
federal statutory prohibition against charging Medicare substantially in 
excess of a provider's usual charge, the OIG declined to provide any guidance 
concerning the interpretation of this legislation, including whether or not 
discounting or the dual fee structure employed by clinical laboratories might 
raise issues under the provision. 
    

   Medicare budget proposals developed by the Clinton Administration in 1993 
and 1994, along with proposals incorporated in many major health reform bills 
considered by Congress in 1994, called for the reinstatement of 20% Medicare 
clinical laboratory co-insurance (which was last in effect in 1984). While 
co-insurance was in effect, clinical laboratories received from Medicare 
carriers only 80% of their Medicare reimbursement rates and were required to 
bill Medicare beneficiaries for the balance of the charges. A co-insurance 
proposal was not included in any of the Congressional Medicare reform 
packages considered to date in the 1995 and 1996 legislative sessions. 
However, it is still possible a co-insurance provision will be proposed in 
the future and, if enacted, such a proposal could materially adversely affect 
the revenues and costs of the clinical laboratory industry, including CCL, by 
exposing the testing laboratory to the credit of individuals and by 
increasing the number of bills. In addition, a laboratory could be subject to 
potential fraud and abuse violations if adequate procedures to bill and 
collect the co-insurance payments are not established and followed. 

   Proposals have also been developed to procure Medicare and Medicaid 
laboratory testing services through competitive bidding mechanisms. To date, 
none of the Congressional Medicare reform packages introduced in the 1995 and 
1996 legislative sessions have included a competitive bidding provision for 
clinical laboratory tests. However, President Clinton's Medicare reform 
proposal would have established competitive bidding for clinical laboratory 
services. If competitive bidding were implemented, such action could 
materially adversely affect the revenues of the clinical laboratory industry, 
including CCL. HCFA is currently developing a demonstration project to 
determine whether competitive bidding can be used to provide quality 
laboratory services at prices below current Medicare reimbursement rates. The 
demonstration is expected to be conducted in Kentucky and to commence in 
1997. 

   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 CCL. 
CCL 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 clinical laboratories from, among other things, making payments or 
furnishing other benefits to influence the referral of tests billed to 
Medicare, Medicaid or other federal programs. Penalties for violations of 
these federal laws include exclusion from 

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participation in the Medicare/Medicaid programs, assets forfeitures, and 
civil and criminal penalties. Civil administrative penalties for a wide range 
of offenses may be up to $2,000 per item and twice the amount claimed. Under 
the Health Insurance Portability and Accountability Act of 1996 (the "Health 
Insurance Act"), the penalties will be increased, effective January 1, 1997 
to 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 penalty. 

   The fraud and abuse provisions are interpreted liberally and enforced 
aggressively by various enforcing agencies of the federal government, 
including the Federal Bureau of Investigation ("FBI") and the OIG. According 
to public statements by the DOJ, health care fraud has been elevated to the 
second-highest priority of the DOJ, and FBI agents have been transferred from 
investigating counterintelligence activities to health care provider fraud. 
The OIG also is involved in such investigations and has, according to recent 
workplans, targeted certain laboratory practices for study, investigation and 
prosecution. The federal government's involvement in curtailing fraud and 
abuse is likely to increase as a result of the enactment in August 1996 of 
the Health Insurance Act which will require, by January 1, 1997, the U.S. 
Attorney General and the OIG to jointly establish a program to (a) coordinate 
federal, state and local enforcement programs to control fraud and abuse with 
respect to health care, (b) conduct investigations, audits, evaluations and 
inspections relating to the delivery and payment for health care, (c) 
facilitate the enforcement of the health care fraud and abuse laws, (d) 
provide for the modification and establishment of safe harbors and to issue 
advisory opinions and Special Fraud Alerts and (e) provide for a data 
collection system for the reporting and disclosure of adverse actions taken 
against health care providers. The Health Insurance Act also authorizes the 
establishment of an anti-fraud and abuse trust fund funded through the 
collection of penalties and fines for violations of the health care 
anti-fraud laws as well as amounts authorized therefor by Congress. The 
Health Insurance Act also requires HHS to establish a program to encourage 
Medicare beneficiaries and others to report violations of the health care 
anti-fraud laws, including by paying to the reporting person a portion of any 
fines and penalties collected. 

   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 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. The Special Fraud Alert was issued in part at the request 
of the American Clinical Laboratory Association, which requested 
clarification of certain of these rules. CCL does not believe that it has 
been negatively affected by the issuance of the Special Fraud Alert. 

   
   Many of these statutes and regulations, including those relating to joint 
ventures and alliances, are vague or indefinite and have not been interpreted 
by the courts. In addition, regulators have generally offered little guidance 
to the clinical laboratory industry. Despite requests from the American 
Clinical Laboratory Association for clarification of the anti-fraud and abuse 
rules, since 1992, OIG has issued only two fraud alerts specifically with 
regard to clinical laboratory practices and has insisted that it lacked 
statutory authority to issue advisory opinions. Legislation requiring OIG to 
issue fraud alerts and advisory opinions was enacted in August 1996, and as a 
result CCL is hopeful that additional regulatory guidance will be given to 
the clinical laboratory industry. 
    

   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 DOJ, the Office of General 
Counsel of HHS and the OIG investigative and audit offices in combating fraud 
and abuse. In addition, the OIG stated in its 1995 work plan that it will 
determine the extent to which laboratories supply physicians' offices with 

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<PAGE> 

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. 

   A federal "self-referral" law commonly known as the "Stark" law has, since 
1992, generally prohibited (with certain exceptions) Medicare payments for 
laboratory tests referred by physicians who have (personally or through a 
family member) an investment interest in, or a compensation arrangement with, 
the testing laboratory. Since January 1995, these restrictions apply to 
Medicaid-covered services as well. Physicians may, however, be reimbursed by 
Medicare and Medicaid for testing performed by or under the supervision of 
the physician or the group practice to which the physician belongs. In 
addition, a physician may refer specimens to a laboratory owned by a company, 
such as CCL, whose stock is traded on a public exchange and which has 
stockholders' equity exceeding $75 million even if the physician owns stock 
of that company. An amendment to the Stark law in August 1993 makes it clear 
that ordinary day-to-day transactions between laboratories and their 
customers, including, but not limited to, discounts granted by laboratories 
to their customers, are not covered by the compensation arrangement 
provisions of the Medicare statute. Sanctions for laboratory violations of 
the prohibition include denial of Medicare payments, refunds, civil money 
penalties of up to $15,000 for each service billed in violation of the 
prohibition and exclusion from the Medicare and Medicaid programs. 

   The 1995 House Medicare reform proposal contained, and the House-Senate 
report adopted, provisions that would significantly narrow the scope of the 
Stark anti-referral laws. That proposal would, among other changes, have 
ended the ban on physician referrals to laboratories based on any 
"compensation arrangements" between the laboratory and the physician. The 
President vetoed this bill on December 6, 1995. 

   
OIG Investigations and Related Claims 
    

   
   In connection with the Distributions, Corning will agree to indemnify CCL 
against all monetary penalties, fines or settlements for any governmental 
claims discussed below that are pending on the Distribution Date. Corning 
will also agree to indemnify CCL for 50% of the aggregate of all judgment or 
settlement payments made by CCL that are in excess of $42.0 million in 
respect of claims by nongovernmental parties (including, without limitation, 
private insurers) alleging overbillings by CCL or any existing subsidiaries 
of CCL, for services provided prior to the Distribution Date; provided, 
however, such indemnification for nongovernmental claims will terminate five 
years after the Distribution Date and will not exceed $25.0 million in the 
aggregate. CCL's aggregate reserve with respect to all governmental and 
nongovernmental claims, including litigation costs, was $215 million at 
September 30, 1996 and is estimated to be $85 million at the Distribution 
Date. 
    

   
   Corning will not indemnify CCL against any governmental claims that arise 
after the Distribution Date, even though relating to events prior to the 
Distribution Date, or to any nongovernmental claims that do not relate to 
alleged overbillings prior to the Distribution Date. Corning will not 
indemnify CCL against consequential or incidental damages relating to the 
billing claims, including losses of revenues and profits as a consequence of 
any exclusion from participation in federal or state health care programs or 
the fees and expenses of the litigation, including attorneys' fees and 
expenses. All amounts indemnified against by Corning for the benefit of CCL 
will be calculated on a net after-tax basis by taking into account deductions 
and, if any, other tax benefits in respect of the underlying settlement or 
judgment payment or other loss that gives rise to the indemnification 
obligation of Corning, which deductions or other tax benefits are or would be 
available to CCL or other indemnitee or the consolidated tax group of which 
CCL is a member and by assuming such deductions or other tax benefits can be 
utilized by CCL or such group, as the case may be, in the tax period in which 
the underlying payment or other loss occurs to reduce taxes at the highest 
marginal corporate tax rate applicable for the period in which such payment 
or loss occurred. See "The Relationship Among Corning, CCL and Covance After 
the Distributions--Transaction Agreement." 
    

   
   In September 1993, CCL (under the name MetPath Inc.) entered into an 
agreement with the DOJ and the OIG pursuant to which CCL paid a total of 
$36.1 million in settlement of civil claims by the United States that the 
companies had wrongfully induced physicians to order certain laboratory tests 
without their realizing that such tests would be billed to Medicare at rates 
higher than those the physicians believed were applicable. At about the same 
time, by issuing civil subpoenas in August, 1993, the government began formal 
investigations of several other large national and regional laboratories for 
similar practices, including Damon and Nichols, two companies acquired by 
    

                                       72
<PAGE> 

   
Corning in August 1993 and August 1994, respectively, as well as CCL's 
principal competitors and their predecessors. Subsequent to September 1993, 
several additional subpoenas were issued. 
    

   
   By a plea agreement and civil agreement and release dated October 9, 1996, 
between DOJ and Damon, all federal criminal matters within the scope of the 
various federal investigations against Damon, and all claims including the 
civil qui tam cases underlying the civil investigations were settled for an 
aggregate of $119 million, which sum was reimbursed to CCL by Corning, and 
considered material to both companies. At the time CCL began its settlement 
negotiations with DOJ in April 1996, it believed it had meritorious defenses 
to a number of charges and claims made by the government. Certain of these 
positions were ultimately rejected by criminal and civil prosecutors in the 
final rounds of negotiations which occurred through early October 1996, 
resulting in a total settlement substantially in excess of what had earlier 
been anticipated. The Damon settlement does not exclude CCL from future 
participation in any federal health care programs on account of Damon's 
practices. 
    

   
   CCL understands that the Boston United States Attorney's Office has 
designated several former officers and employees of Damon as targets of its 
criminal investigation, and will seek indictments against them. Under the 
agreement and plan of merger under which Damon was acquired by Corning, CCL 
is obligated to indemnify former officers and directors of Damon to the 
fullest extent permitted by Delaware law with respect to this investigation. 
These obligations will remain those of CCL and will not be indemnified by 
Corning as mentioned above. 
    

   
   The investigation of Nichols remains open. While CCL has established 
reserves in respect of the Nichols investigations, at present there are no 
settlement discussions pending between DOJ and CCL regarding Nichols, and it 
is too early to predict with any accuracy which particular tests, time 
periods and locations the government may challenge. Remedies available to the 
government include exclusions from participation in Medicare and Medicaid, 
criminal fines, civil recoveries plus civil penalties and asset forfeitures. 
Application of such remedies and penalties could materially and adversely 
affects CCL's business, financial condition, results of operations and 
prospects. As discussed above, Corning has agreed to indemnify CCL against 
any monetary penalties, fines or settlements for any governmental claims that 
may arise as a result of the Nichols investigations. 
    

   
   The Damon settlement involved, and a settlement regarding Nichols is 
expected to involve, only matters predating Corning's acquisition of both 
such companies, and turned on, or will turn on, facts unique to those 
companies and other factors individual government enforcement personnel may 
take into account. However, recent experience in CCL's settlement of the 
Damon case and public announcements by various government officials indicate 
that the government's position on health care fraud is still hardening and 
collections of fines and penalties greatly in excess of mere recoupment of 
overcharges from laboratories and other providers will be more prevalent. In 
addition, new legislation to combat health care fraud and abuse will give 
federal enforcement personnel substantial increased funding, powers and 
remedies to pursue suspected fraud and abuse. In connection with the Damon 
settlement, CCL signed a Corporate Integrity Agreement pursuant to which CCL 
will maintain its corporate compliance program, modify certain of its 
marketing materials, make periodic reports to the OIG and take certain other 
steps to demonstrate CCL's integrity as a provider of services to federally 
sponsored health care programs. This agreement also includes an obligation to 
self-report instances of noncompliance that are uncovered by CCL, but also 
gives CCL the opportunity to obtain clearer guidance on matters of compliance 
and to resolve compliance issues directly with OIG. Importantly, the 
agreement gives CCL the opportunity to cure any asserted breaches and to 
otherwise initiate corrective actions, which CCL believes should help to 
avoid enforcement actions outside of the process provided in the agreement. 
See "--Compliance Program." 
    

   
   In December 1995, CCL received a subpoena from the OIG seeking information 
as to CCL's policies in instances in which specimens were received and tested 
by a laboratory without first receiving or verifying specific test 
requisitions. Compliance with the subpoena is ongoing, however, CCL has 
concluded the occurrence of this practice was relatively rare and was engaged 
in primarily to preserve the integrity of test results from specimens subject 
to rapid deterioration. During 1996, CCL voluntarily self-reported to the 
government a few isolated events that may have resulted in overpayment by 
Medicare and Medicaid to CCL. It is CCL's policy to internally investigate 
all such incidents and to self-report and reimburse payors as appropriate. 
Although CCL has commenced internal investigations to quantify the amounts 
that may be recouped by the government and corrective action has been taken 
as to each such event, it is too early to predict the outcome of these 
disclosures to the government. As discussed above, Corning has agreed to 
indemnify CCL against any monetary penalties, fines or settlements for any 
governmental claims that may arise as a result of the investigations 
described in this paragraph. 
    

                                       73
<PAGE> 

   
   In addition to the foregoing settlements and investigations, since 1992 
CCL has settled five other federal and state billing-related claims for a 
total of $25 million and thirteen related private actions in the amount of 
$12 million. CCL has reserved additional amounts for future government and 
private settlements of matters either presently pending or anticipated as a 
consequence of these settlements and self-reported matters, which it believes 
are adequate for the purpose, but there can be no assurance that the amounts 
so reserved will be sufficient. 
    

   
   Although management believes that established reserves for both 
indemnified and non-indemnified claims are sufficient, it is possible that 
the additional information may become available which may cause the final 
resolution of these matters to be in excess of established reserves by an 
amount which could be material to CCL's results of operations and, for 
non-indemnified claims, CCL's cash flows in the period in which such claims 
are settled. CCL does not believe, however, that these matters will have a 
material adverse impact on CCL's overall financial condition. 
    


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 concern 
throughout the clinical laboratory industry. CCL began the implementation of 
a compliance program early in 1993. The objective of the program is to 
develop aggressive and reliable compliance safeguards. Emphasis is placed on 
developing training programs for personnel intended to assure the strict 
implementation and observance of all applicable rules and regulations. 
Further, in-depth reviews of procedures, personnel and facilities are 
conducted to assure regulatory compliance throughout CCL. CCL's current 
compliance plan establishes a Compliance Committee of the CCL Board and 
requires periodic reporting of compliance operations by management to the 
Compliance Committee. Such sharpened focus on regulatory standards and 
procedures will continue to be a priority for CCL in the future. 

   
   CCL has established a comprehensive program designed to ensure that it is 
in compliance in all material respects with all statutes, regulations and 
other requirements applicable to its clinical laboratory operations. This 
program was publicly cited with approval by government officials at the time 
the Damon settlement was announced and characterized as a "model" for the 
industry. In addition, the government advised CCL representatives that CCL's 
compliance program, coupled with corrective action taken by CCL after its 
acquisition of Damon, greatly reduced the amounts of fines and penalties, and 
was influential in causing the OIG not to seek exclusion of CCL from future 
participation in governmental health care programs. Pursuant to the Damon 
settlement, CCL signed a five year Corporate Integrity Agreement with the OIG 
pursuant to which CCL will, among other things, maintain its corporate 
compliance program, make certain changes to its test order forms, provide 
certain additional notices to ordering physicians, provide to the OIG data on 
certain test ordering patterns, adopt certain pricing guidelines, audit 
laboratory operations, deliver annual reports on compliance activities, and 
investigate and report instances of noncompliance, including any corrective 
actions and disciplinary steps. Importantly, the agreement gives CCL the 
opportunity to cure any asserted breaches and to otherwise initiate 
corrective actions, which CCL believes should help to avoid enforcement 
actions outside of the process provided in the agreement. The agreement gives 
CCL the opportunity to obtain clearer guidance on matters of compliance and 
to resolve compliance issues directly with the OIG. CCL has been advised that 
its principal competitors will be obliged to execute similar agreements at 
the conclusion of investigations pending against them and that the OIG will 
likely publish to the clinical laboratory testing industry a guideline on the 
essential elements of a satisfactory compliance program. This latter step may 
help create a fairer competitive environment for CCL. None of the 
undertakings included in the agreement is expected to have any material 
adverse affect on CCL's business, financial condition, results of operations 
and prospects. The clinical laboratory testing industry is, however, subject 
to extensive regulation. CCL believes that it is in all material respects in 
compliance with all applicable statutes and regulations. However, there can 
be no assurance that any statutes or regulations might not be interpreted or 
applied by a prosecutorial, regulatory or judicial authority in a manner that 
would adversely affect CCL. Potential sanctions for violation of these 
statutes and regulations include significant fines and the loss of various 
licenses, certificates and authorizations. 
    


Insurance 

   CCL maintains liability insurance (subject to maximum limits and 
self-insured retentions) for claims, which may be substantial, that could 
result from providing or failing to provide clinical laboratory testing 
services, including inaccurate testing results. While there can be no 
assurance that coverage will be adequate to cover all 

                                       74
<PAGE> 

future exposure, management believes that the present levels of coverage are 
adequate to cover currently estimated exposures. Although CCL believes that 
it will be able to obtain adequate insurance coverage in the future at 
acceptable costs, there can be no assurance that CCL will be able to obtain 
such coverage or will be able to do so at an acceptable cost or that CCL will 
not incur significant liabilities in excess of policy limits. 

Employees 

   
   At September 30, 1996, CCL employed approximately 18,700 people. These 
include approximately 16,500 full-time employees and approximately 2,200 
part-time employees. CCL has no collective bargaining agreements with any 
unions and believes that its overall relations with its employees are good. 
    

   
Seasonality 
    

   During the summer months, year-end holiday periods and other major 
holidays, volume of testing declines, reducing net revenues and resulting 
cash flows below annual averages during the third and fourth quarters each 
year. Winter months are also subject to declines in testing volume due to 
inclement weather. As a result, comparisons of the results of successive 
quarters may not accurately reflect trends or results for the full year. See 
"Management's Discussion and Analysis of Financial Condition and Results of 
Operations of CCL--Overview." 

   
Properties 
    

   
   CCL's principal laboratories (listed alphabetically by state) are located 
in the following metropolitan areas: 
    


<TABLE>
<CAPTION>
 Location                                           Type of Laboratory     Leased or Owned 
- ------------------------------------------------- ---------------------  --------------------- 
<S>                                               <C>                    <C>
Phoenix, Arizona                                  Regional                      Leased 
San Diego, California                             Regional                      Leased 
San Juan Capistrano, California                   Esoteric                      Owned 
Denver, Colorado                                  Regional                      Leased 
New Haven, Connecticut                            Regional                      Owned 
Miami, Florida                                    Branch                        Leased 
Tampa, Florida                                    Regional                      Leased 
Atlanta, Georgia                                  Regional                      Leased 
Chicago, Illinois                                 Regional                      Leased 
Indianapolis, Indiana                             Branch                        Leased 
Baltimore, Maryland                               Regional                      Owned 
Boston, Massachusetts                             Regional                 Owned subject to 
                                                                               put/call 
                                                                         with option to lease 
Detroit, Michigan                                 Regional                      Leased 
Grand Rapids, Michigan                            Branch                        Leased 
Kansas City, Missouri                             Branch                        Leased 
St. Louis, Missouri                               Regional                      Leased 
Billings, Montana                                 Branch                        Leased 
Teterboro, New Jersey/New York, New York          Regional                      Owned 
Lincoln, Nebraska                                 Regional                Managed (hospital) 
Albuquerque, New Mexico                           Branch                        Leased 
Buffalo, New York                                 Branch                        Owned 
Long Island, New York                             Branch                        Leased 
Cleveland, Ohio                                   Branch                        Owned 
Columbus, Ohio                                    Branch                        Leased 
Portland, Oregon                                  Regional                      Leased 
Erie, Pennsylvania                                                         Leased by joint 
                                                  Branch                       venture 
Philadelphia, Pennsylvania                        Regional                      Leased 
Pittsburgh, Pennsylvania                          Regional                      Leased 
Nashville, Tennessee                              Branch                        Owned 
Dallas, Texas                                     Regional                      Leased 
El Paso, Texas                                    Branch                        Leased 
Salt Lake City, Utah                              Branch                        Leased 
</TABLE>

                                       75
<PAGE> 

   CCL executive offices are located in Teterboro, New Jersey in the building 
that serves as CCL's regional laboratory in the New York City metropolitan 
area. CCL owns its branch laboratory facility in Mexico City. CCL believes 
that, in general, its laboratory facilities are suitable and adequate for its 
current and anticipated future levels of operation. CCL believes that if it 
were unable to renew the lease on any of its testing facilities, it could 
find alternative space at competitive market rates and relocate its 
operations to such new locations. 

Legal Proceedings 

   
   In addition to the investigations described in "--OIG Investigations and 
Related Claims," CCL is involved in various legal proceedings arising in the 
ordinary course of business. Some of the proceedings against CCL involve 
claims that are substantial in amount. Although it is not feasible to predict 
the outcome of such proceedings or any claims made against CCL, it does not 
anticipate that the ultimate liability of such proceedings or claims will 
have a material adverse effect on CCL's financial position or results of 
operations as they primarily relate to professional liability for which CCL 
believes it has adequate insurance coverage. CCL maintains professional 
liability insurance for its professional liability claims. See "--Insurance." 
    

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 to encourage companies to provide 
prospective information about their companies without fear of litigation 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. This section is included to take advantage of the new "safe 
harbor" provisions of the Private Securities Litigation Reform Act of 1995 in 
connection with the information included herein. Accordingly, the following 
factors are hereby identified as important factors that could cause CCL's 
actual financial results to differ materially from those projected, forecast, 
estimated, or budgeted by CCL in forward-looking statements. 
    

   (a) Heightened competition, including the intensification of price 
       competition. See "Risk Factors-- 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 CCL. 

   (d) The impact upon CCL's collection rates or general or administrative 
       expenses resulting from compliance with Medicare administrative 
       policies, including specifically the recent requirements of Medicare 
       carriers to provide diagnosis codes for commonly ordered tests and the 
       policy of HCFA to limit Medicare reimbursement for tests contained in 
       automated chemistry panels to the amount that would have been paid if 
       only the covered tests, determined on the basis of demonstrable 
       "medical necessity," had been ordered. 

   (e) Adverse results from pending governmental investigations of Damon and 
       Nichols including specifically significant monetary damages and/or 
       exclusion from the Medicare and Medicaid programs and/or other 
       significant litigation matters. 

   (f) Failure to obtain new customers, retain existing customers or 
       reduction in tests ordered or specimens submitted by existing 
       customers. 

   (g) Inability to obtain professional liability insurance coverage or a 
       material increase in premiums for such coverage. 

   (h) Denial of CLIA certification or other licensure of any of CCL's 
       clinical laboratories under CLIA, by HCFA for Medicare and Medicaid 
       programs or other federal, state and local agencies. 

   (i) Adverse publicity and news coverage about CCL or the clinical 
       laboratory industry. 

   (j) Computer or other system failures that affect the ability of CCL to 
       perform tests, report test results or properly bill customers. 

   (k) Development of technologies that substantially alter the practice of 
       laboratory medicine. 

                                       76
<PAGE> 

                              MANAGEMENT OF CCL 

Management 

   
   Directors. Certain information with respect to the persons who will serve 
as directors of CCL following the Distributions is set forth below. Prior to 
the closing of the CCL Notes Offering and the CCL Spin-Off Distribution, one 
of the current directors will resign and the prospective directors listed 
below will be elected to fill the vacancies created by such resignations. As 
provided in the CCL Certificate, the CCL Board will be divided into three 
classes effective upon the Distributions and one class of the CCL Board will 
be elected for a three-year term at each annual meeting of stockholders. 
Included in the information set forth below are the names of the directors of 
each class and their original terms. CCL is contemplating the selection of 
additional directors, which selection may occur prior to the Distributions. 
CCL does not intend to hold an annual meeting of stockholders until the 
Spring of 1998. 
    


<TABLE>
<CAPTION>
 Name                Age   Year Term Expires 
 ------------------  ----- ------------------ 
<S>                  <C>   <C>
Kenneth W. Freeman    46 
Van C. Campbell       58 
David A. Duke         60 
</TABLE>

   
   Kenneth W. Freeman was elected President and Chief Executive Officer of 
CCL in May 1995 and has been a director of CCL since July 1995. Prior to 
1995, he served in a variety of key financial and managerial positions at 
Corning, which he joined in 1972. He was elected controller and a vice 
president of Corning in 1985, senior vice president in 1987, and general 
manager of the Science Products Division in 1989. He was appointed president 
and chief operating officer of Corning Asahi Video Products Company in 1990. 
In 1993, he was elected executive vice president. 
    

   
   Van C. Campbell is the Vice Chairman of Corning, which he joined in 1964. 
He was elected assistant treasurer in 1971, treasurer in 1972, a vice 
president in 1973, financial vice president in 1975 and senior vice president 
for finance in 1980. He became general manager of the Consumer Products 
Division in 1981. Mr. Campbell was elected vice chairman and a director in 
1983 and during 1995 was appointed to the additional position of chairman of 
Corning Life Sciences, Inc. He is a director of Armstrong World Industries, 
Inc. and General Signal Corporation. Mr. Campbell has been a director of CCL 
since January 1991. 
    

   
   David A. Duke is a Retired Vice Chairman of Corning. Dr. Duke joined 
Corning in 1962 and served in a succession of research and management 
positions. He was elected vice president--Telecommunications Products in 
1980, elected a senior vice president in 1984 and named director of Research 
and Development in 1985. He became responsible for Engineering in March 1987 
and was elected as a director and Vice Chairman of Corning in 1988. He 
resigned as a director of Corning in April 1996 and retired in June 1996. Dr. 
Duke is a director of Armco, Inc. Mr. Duke was a director of CCL from October 
1994 to July 1996 and was re-elected a director of CCL in October 1996. 
    

   
   Directors' Compensation. Each director of CCL, other than a director who 
is an employee of CCL, will receive $18,000 annually for service as a 
director and will also be paid $1,000 for each meeting of the CCL Board and 
$500 for each meeting of any committee thereof which he attends. 
    

   
   CCL has adopted, effective the Distribution Date, a deferred compensation 
plan for directors pursuant to which each director may elect to defer until a 
date specified by him receipt of all or a portion of his compensation. Such 
plan provides that amounts deferred may be allocated to (i) a cash account 
upon which amounts deferred may earn interest, compounded quarterly, at the 
prime rate of Citibank, N.A. in effect on certain specified dates, (ii) a 
market value account, the value of which will be based upon the market value 
of CCL Common Stock from time to time, or (iii) a combination of such 
accounts. As of the Distribution Date, it is anticipated that there will be 
no non- employee directors eligible to participate in the plan. 
    

   CCL has adopted, effective the Distribution Date, a restricted stock plan 
for non-employee directors, pursuant to which CCL will issue to each 
non-employee director elected 750 shares of CCL Common Stock for each year 
specified in the term of service for which such director was elected, subject 
to forfeiture and restrictions on transfer, and 5,000 shares upon such 
director's election, subject to forfeiture and restrictions on transfer. 

                                       77
<PAGE> 

   Committees of the Board of Directors. Prior to the Distributions, the CCL 
Board is expected to establish and designate specific functions and areas of 
oversight to an Audit and Finance Committee, a Compensation Committee ("CCL 
Compensation Committee") and a Compliance Committee. The Audit and Finance 
Committee will examine and consider matters relating to the financial affairs 
of CCL, including reviewing CCL's annual financial statements, the scope of 
the independent and internal audits and the independent auditor's letter to 
management concerning the effectiveness of CCL's internal financial and 
accounting controls. The CCL Compensation Committee will make recommendations 
to the CCL Board with respect to programs for human resource development and 
management organization and succession, determine senior executive 
compensation, make recommendations to the CCL Board with respect to 
compensation matters and policies and employee benefit and incentive plans, 
administer such plans, and administer CCL's stock option and equity based 
plans and grant stock options and other rights under such plans. The 
Compliance Committee will oversee CCL's compliance program, which is 
administered by management's compliance council. The council will prepare for 
review and action by the Compliance Committee reports on such matters as 
audits and investigations. See "Business of CCL--Compliance Program." 

   Executive Officers of CCL. In addition to Mr. Freeman, the following 
persons will serve as executive officers of CCL after the Distributions: 

   Robert A. Carothers (60) will become Vice President and Chief Financial 
Officer at the Distribution Date. Mr. Carothers joined Corning in 1959 and 
has served in a number of key financial positions in the United States and 
Japan. He was elected Assistant Controller in 1991. In January 1996 he was 
appointed Assistant to the President of CCL. 

   
   James D. Chambers (39) is Vice President-Billing. Mr. Chambers joined 
Corning in 1986 and has served in a variety of managerial and financial 
positions for Corning and its subsidiaries, becoming Assistant Treasurer in 
1991. Mr. Chambers joined CCL in 1992 as Treasurer and served as Chief 
Financial Officer from 1994 through 1995. In 1995 Mr. Chambers assumed his 
current responsibilities overseeing CCL's billing process. 
    

   Gregory C. Critchfield, M.D. (45) is Senior Vice President, and Chief 
Medical and Science Officer. Dr. Critchfield joined CCL in 1995 as Chief 
Laboratory Officer and assumed his current responsibilities in May 1996. Dr. 
Critchfield has served as a consultant to the National Institutes of Health 
in the capacity of a reviewer for more than ten years and was selected as 
Study Section Chair of several Multidisciplinary Review Teams during the last 
two years. Prior to joining CCL, Dr. Critchfield was a clinical pathologist 
with Intermountain Health Care ("IHC") for eight years and served in various 
director positions with IHC Laboratory Services, including Director of 
Clinical Pathology. Dr. Critchfield also served as Chairman of the Department 
of Pathology at Utah Valley Regional Medical Center from 1992 through 1995. 

   
   Kurt R. Fischer (41) is Vice President-Human Resources. Mr. Fischer joined 
Corning in 1976 and has served in a variety of Human Resources positions. He 
was appointed Human Resource Manager for the Research, Development and 
Engineering Group in 1986 and Director-Quality and Performance Management for 
the Specialty Materials Group in 1991. Mr. Fischer assumed his present 
responsibilities with CCL in December 1995. 
    

   
   Delbert A. Fisher, M.D. (68) is Vice President of Corning Nichols 
Institute and currently serves as President of its Academic Associates, a 
select group of eminent physicians and scientists who advise the company on 
new medical and scientific developments. Dr. Fisher joined Nichols Institute 
in 1991 as President of its esoteric laboratory facility and assumed his 
present responsibilities in 1993. Prior to joining Nichols, he was a 
professor of pediatrics and the Associate Chairman of the Department of 
Pediatrics of the UCLA School of Medicine for 13 years. 
    

   Raymond Gambino, M.D. (69) is Chief Medical Officer Emeritus. Dr. Gambino 
joined CCL in 1983 as President of the Eastern Region. From 1984 to 1994, Dr. 
Gambino served as Chief Medical Officer and Executive Vice President, at 
which time his appointment was changed to emeritus. He continues to serve CCL 
as a senior medical advisor. 

   Donald M. Hardison, Jr. (45) is Senior Vice President-Sales and Marketing, 
with overall responsibility for all commercial activities. Mr. Hardison 
joined CCL in January 1996. Prior to joining CCL, Mr. Hardison had 18 years 
experience in health care with subsidiaries of SmithKline Beecham and its 
predecessor entities, including seven years with the clinical laboratory 
division of SmithKline, where he held a succession of positions including 
Director of Marketing; Vice President of Sales-Northern; Vice 
President-General Manager of the Atlanta Operation; and Vice President of 
Sales and Marketing. 

                                       78
<PAGE> 

   Paul A. Krieger, M.D. (49) is Vice President-Anatomic Pathology with 
responsibility for all aspects of CCL's anatomic pathology testing. Dr. 
Krieger joined CCL in 1975 and served as Vice President, Director of Anatomic 
Pathology at CCL's regional laboratory in Teterboro, New Jersey until 1995, 
when he was appointed to his present position. Concurrent with his employment 
with CCL, Dr. Krieger has served as an Adjunct Assistant Professor at the 
College of Physicians and Surgeons of Columbia University. 

   Raymond C. Marier (51) is Vice President, Secretary and General Counsel. 
Mr. Marier joined Corning's Legal Department in 1973 as an Assistant Counsel, 
where he worked with a number of Corning's operating units, including its 
Medical and Science Products Divisions. He has held his present position 
since 1992. 

   C. Kim McCarthy (41) is Vice President-Compliance and Government Affairs. 
Ms. McCarthy joined Corning in 1987 as Director of Federal Government Affairs 
and Legislative Counsel. She became Vice President of Public Affairs of CCL 
in 1992 and Senior Vice President of Corporate Affairs in 1994. Ms. McCarthy 
assumed her present responsibilities in June 1996. 

   Alister W. Reynolds (39) is Vice President-Information Technology. Mr. 
Reynolds joined CCL in 1982 and has served in a variety of staff, executive 
and general management positions. Mr. Reynolds assumed his current 
responsibilities in 1995. 

   Douglas M. VanOort (40) will become Senior Vice President-Operations at 
the Distribution Date. Mr. VanOort joined Corning in 1982 and has served in 
various finance, analysis and control positions. He became Vice President and 
Chief Financial Officer of CCL in 1990, Senior Vice President-Finance and New 
Business Development of CCL in 1993 and Executive Vice President and Chief 
Financial Officer of CCL in 1995. 

Executive Compensation 

   Historical Compensation. The following table sets forth information with 
respect to annual and long-term compensation expected to be paid by CCL and 
its subsidiaries to each of the chief executive officer and the four other 
most highly compensated executive officers (the "named executive officers") 
of CCL for services to be rendered in all capacities in fiscal year 1996 and 
such compensation paid or accrued during the years ended December 31, 1995 
and December 31, 1994 for services rendered by each of the named executive 
officers. All references in the following tables to stock and stock options 
relate to awards of, and options to purchase, Corning Common Stock. 

                          SUMMARY COMPENSATION TABLE 

<TABLE>
<CAPTION>
                                                 Annual Compensation 
                                       -------------------------------------- 
         Name and                                                Other Annual 
    Principal Position        Year      Salary (1)    Bonus (2) Compensation(3) 
- ------------------------- ------------ ------------ ------------ ------------ 
<S>                           <C>         <C>          <C>           <C>
Kenneth W. Freeman,           1996        385,000      211,750       10,440 
  President and Chief         1995        316,667      249,918        7,200 
  Executive Officer           1994        240,000      244,634        6,900 
Robert A. Carothers,          1996        250,000      136,714        1,800 
  Vice President and          1995        173,000       68,337           -- 
  Chief Financial Officer     1994        165,250       84,180           -- 
Gregory C. Critchfield,       1996        310,000      182,900       40,909 
  Senior Vice President       1995 (6)     70,000      122,920           -- 
  and Chief Medical and 
  Science Officer 
Donald M. Hardison, Jr.,      1996        260,000      159,467        2,880 
  Senior Vice President- 
  Sales and Manufacturing 
Douglas M. VanOort,           1996        325,000      178,750        2,880 
  Senior Vice President-      1995        251,912       56,754        7,200 
  Operations                  1994        228,333      165,969        6,900 
</TABLE>
<TABLE>
<CAPTION>
                                   Long-Term Compensation 
                           ------------------------------------------ 
                                    Awards             Payouts 
                          ---------------------------- ------------- 
                            Restricted   Securities   Incentive 
         Name and             Stock      Underlying     Plan       All Other 
     Principal Position     Awards(4)     Options      Payouts  Compensation(5) 
- ------------------------- ------------- ------------- --------- -------------- 
<S>                          <C>           <C>         <C>           <C>
Kenneth W. Freeman,              --            --          --        16,690 
  President and Chief        326,926       87,000          --        14,057 
  Executive Officer          406,766       20,000      162,679       13,376 
Robert A. Carothers,             --            --          --         8,254 
  Vice President and             --        16,500          --         8,561 
  Chief Financial Officer        --         6,092          --         7,557 
Gregory C. Critchfield,          --         2,000          --        65,690 
  Senior Vice President          --         3,000          --         2,370 
  and Chief Medical and 
  Science Officer 
Donald M. Hardison, Jr.,         --        24,000          --        17,123 
  Senior Vice President- 
  Sales and Manufacturing 
Douglas M. VanOort,              --            --          --         4,750 
  Senior Vice President-      98,626       60,000          --         4,620 
  Operations                 109,652       20,000          --         4,178 
</TABLE>

   
- ------------- 
    

   
(1) Reflects for 1996 current salaries on an annualized basis, including 
    amounts deferred. 
(2) Reflects for 1996 projected performance-based annual cash compensation 
    awards at target levels. 
(3) Includes dividends on shares of restricted stock granted but not earned 
    within one year from date of grant and tax gross-up payments. 
    

                                       79
<PAGE> 

   
(4) Messrs. Freeman, Carothers, Hardison and VanOort held an aggregate of 
    97,930, 2,500, 4,000 and 43,627 shares of restricted stock of Corning, 
    respectively, having an aggregate value on September 30, 1996 of 
    $3,819,270, $97,500, $156,000 and $1,701,453, respectively. Certain of 
    such shares, net of forfeitures, were subject to performance-based 
    conditions on vesting and are subject to forfeiture upon termination and 
    restrictions on transfer prior to stated dates. Certain other shares 
    ("Career Shares") are subject to restrictions on transfer until the 
    executive officer retires at or after age 60 and are subject to 
    forfeiture prior to age 60 in whole if such officer voluntarily 
    terminates employment with CCL and in part if such officer's employment 
    is terminated by CCL. On or prior to the Distribution Date (a) all 
    forfeiture conditions and transfer restrictions will be removed from 
    performance-based shares, (b) all restrictions on transfer will be 
    removed from shares which are no longer subject to forfeiture and (c) 
    Career Shares which are subject to forfeiture conditions and transfer 
    restrictions will be forfeited, and restricted shares and/or options to 
    purchase shares of CCL Common Stock will thereafter be granted pursuant 
    to the terms of the CCL Incentive Stock Plan (as defined below). 
    Dividends are paid to such individuals on all shares of restricted 
    Corning Common Stock held by them. 
(5) Includes the following amounts to be contributed by CCL to the CCL Profit 
    Sharing Plan (as defined below) for 1996: $3,850 for Mr. Freeman, $4,283 
    for Mr. Hardison and $4,750 for Mr. VanOort. Also includes $12,840 
    automobile allowance received by each of Messrs. Freeman and Hardison and 
    $9,480 for Dr. Critchfield. Also includes 50% of a $100,000 interest-free 
    loan made by CCL to Dr. Critchfield together with imputed interest 
    thereon, which loan is to be forgiven over a two-year period provided Dr. 
    Critchfield continues to be employed by CCL and was made to assist Dr. 
    Critchfield in relocating to the New Jersey area. 
(6) Dr. Critchfield commenced employment with CCL in October 1995. 
    

  Option Grants. The following table sets forth certain information regarding 
options granted in 1995 (except for Mr. Hardison whose options were granted 
on February 7, 1996) to the named executive officers pursuant to Corning 
stock option plans. No other options were granted to the named executive 
officers in 1996. Employees of CCL who hold at the Distribution Date Corning 
stock options other than those granted on December 6, 1995 and February 7, 
1996 will continue to hold Corning stock options following the CCL Spin-Off 
Distribution. It is anticipated that appropriate adjustments to the number of 
shares subject to options and to the exercise prices will be made to reflect 
the CCL Spin-Off Distribution. A portion of the options granted on December 
6, 1995 and February 7, 1996 will be converted into options to purchase 
shares of CCL Common Stock ("New Options") under the CCL Stock Option Plan 
(as defined below). The remainder of the options granted on December 6, 1995 
and February 7, 1996 will be cancelled. It is anticipated that such cancelled 
options will be replaced by options to be granted under the CCL Stock Option 
Plan. 

The exercise prices and the number of shares of CCL Common Stock subject to 
New Options will be determined as of the time of the Distributions so as to 
preserve the investment basis and intrinsic gain associated with the Corning 
options surrendered as of the date of the CCL Spin-Off Distribution. 
Generally, the expiration dates and the dates on which New Options are 
exercisable will be identical to those under the corresponding Corning 
options at the time of the Distributions. Certain New Options will provide 
that upon exercise of such option through the surrender of previously owned 
shares of CCL Common Stock, the participant will be entitled to receive 
options covering the same number of shares so surrendered, with an exercise 
price equal to the fair market value of the shares at the time of the 
exercise of the New Option. 

                                       80
<PAGE> 

                  OPTION/SAR GRANTS IN FISCAL YEAR 1995 (1) 

<TABLE>
<CAPTION>
                                               Individual Grants 
                               -------------------------------------------------- 
                                            % of Total 
                                Number of     Options 
                                Securities    Granted 
                                Underlying  to Employees 
                                 Options     in Fiscal    Exercise    Expiration 
             Name              Granted (2)     Year         Price        Date 
 --------------------------  ------------- ------------ ------------ ------------ 
<S>                             <C>            <C>          <C>        <C>
Kenneth W. Freeman                 87,000        2.6%       31.25      12/5/2005 
Robert A. Carothers                 1,500        0.0%       31.75       6/7/2005 
                                   15,000        0.4%       31.25      12/5/2005 
Gregory C. Critchfield              3,000        0.1%       27.50      10/3/2005 
Donald M. Hardison, Jr.            24,000        0.7%       33.69       2/6/2006 
Douglas M. VanOort                 60,000        1.8%       31.25      12/5/2005 

All Optionees as a Group (4)    3,389,100      100.0%       31.34           2005 
</TABLE>

<TABLE>
<CAPTION>
                                   Potential Realizable Value at 
                                   Assumed Annual Rates of Stock 
                                      Price Appreciation for 
                                          Option Term (3) 
                               ------------------------------------- 
                                 Gain at      Gain at      Gain at 
             Name                 0% (4)        5%           10% 
 --------------------------  -------------- ------------ ------------ 
<S>                             <C>         <C>          <C>
Kenneth W. Freeman                  0        1,709,807     4,332,987 
Robert A. Carothers                 0           29,951        75,902 
                                    0          294,794       747,067 
Gregory C. Critchfield              0           51,884       131,484 
Donald M. Hardison, Jr.             0          508,499     1,288,636 
Douglas M. VanOort                  0        1,179,177     2,988,267 

All Optionees as a Group (4)        0       66,797,662   169,278,390 
</TABLE>

   
- ------------- 
    

(1) No SARs were granted. 

   
(2) The stock option agreements with Messrs. Freeman, Carothers (with respect 
    to the 15,000 share grant), Hardison and VanOort provide that one-half of 
    the options will become exercisable on February 1, 1999 and all options 
    will become exercisable on February 1, 2000. The stock option agreement 
    with Dr. Critchfield provides that one-half of the options will become 
    exercisable on October 4, 1996 and all of the options will become 
    exercisable on October 4, 1997. The stock option agreement with Mr. 
    Carothers with respect to the 1,500 share grant provides that one-half of 
    the options became exercisable on June 6, 1996 and all of the options 
    will become exercisable on June 6, 1997. All such agreements also provide 
    that an additional option may be granted when the optionee uses shares of 
    Corning Common Stock to pay the purchase price of an option. The 
    additional option will be exercisable for the number of shares tendered 
    in payment of the option price, will be exercisable at the then fair 
    market value of the Corning Common Stock, will become exercisable only 
    after the lapse of twelve months and will expire on the expiration date 
    of the original option. 
    

(3) The dollar amounts set forth under these columns are the result of 
    calculations at 0% and at the 5% and 10% rates established by the 
    Commission and therefore are not intended to forecast future appreciation 
    of Corning's stock price. 

(4) No gain to the optionees is possible without an appreciation in stock 
    price, an event which will also benefit all stockholders. If the stock 
    price does not appreciate, the optionees will realize no benefit. 

   Option Exercises and Fiscal Year-End Values. The following table sets 
forth the number of shares of Corning Common Stock covered by both 
exercisable and unexercisable stock options as of December 31, 1995, for the 
named executive officers. The named executive officers exercised no options 
in 1996. 

                                       81
<PAGE> 

                  AGGREGATED OPTION/SAR EXERCISES IN FISCAL 
           YEAR 1995 AND 1995 FISCAL YEAR-END OPTION/SAR VALUES (1) 

<TABLE>
<CAPTION>
                                                       Number of Securities 
                                                      Underlying Unexercised     Value of Unexercised 
                                                            Options at           In-the-Money Options 
                                                         Fiscal Year End          At Fiscal Year End 
                                                    -------------------------  ------------------------- 
                             Shares 
                            Acquired       Value 
           Name            on Exercise   Realized    Exercisable Unexercisable Exercisable Unexercisable 
- ------------------------- ------------ ------------ ------------ ------------ ------------  ------------ 
<S>                           <C>          <C>         <C>          <C>          <C>          <C>
Kenneth W. Freeman              0            0         103,500      127,000      827,784      107,500 
Robert A. Carothers             0            0          12,483       15,749            0            0 
Gregory C. Critchfield          0            0               0        5,000            0       10,688 
Donald M. Hardison, Jr.        --           --              --           --           --           -- 
Douglas M. VanOort              0            0          11,500       88,000       19,729       55,750 
</TABLE>

- ------------- 

(1) There are no SARs outstanding. 

   Corporate Performance Plan Activity. Awards of performance-based shares of 
Corning Common Stock have been granted to CCL's executive officers pursuant 
to a series of performance-based plans (the "Corporate Performance Plan"). 
The Corporate Performance Plan provides the mechanisms to reward improvement 
in corporate performance as measured by net income, earnings per share and/or 
return on equity. Each year minimum, target and maximum goals are set and 
shares awarded (at target levels) which are subject to forfeiture in whole or 
in part if performance goals are not met. The percentage of awards that may 
be earned ranges from 0% to 150% of target. Shares earned remain subject to 
forfeiture and restrictions on transfer for two years following the end of 
the performance period. 

   The following table sets forth the number of performance-based shares 
awarded under the Corporate Performance Plan. The dollar value of shares 
earned for 1995 is reflected in the "Restricted Stock Awards" column of the 
Summary Compensation Table appearing on page   . 

   
   In late 1996, the Compensation Committee of the board of directors of 
Corning (the "Corning Board") will assess performance against goals, 
determine the number of shares earned of those granted on December 6, 1995 
and February 7, 1996 and remove all possibility of forfeiture and 
restrictions on transfer from such shares. 
    


                  CORPORATE PERFORMANCE PLAN ACTIVITY TABLE 

<TABLE>
<CAPTION>
                                             Number                    Number      Number 
                                   Grant   of Shares   Performance    of Shares   of Shares  Vesting Date of 
           Name             Year    Date    Granted       Period      Forfeited    Earned     Earned Shares 
- -------------------------  ------  ------------------ ------------- ------------ -----------  --------------- 
<S>                         <C>    <C>       <C>           <C>          <C>        <C>             <C>
Kenneth W. Freeman          1996   12/95     14,500        1996                                    2/99 
                            1995   12/94     10,000        1995                    10,740          2/98 
                            1994   12/93     10,000        1994                    14,690          2/97 
Robert A. Carothers         1996   12/95      2,500        1996                                    2/99 
                            1995                  0 
                            1994                  0 
Gregory C. Critchfield      1996                  0 
                            1995                  0 
Donald M. Hardison, Jr.     1996    2/96      4,000        1996                                    2/99 
Douglas M. VanOort          1996   12/95     10,000        1996                                    2/99 
                            1995   12/94     10,000        1995         6,760       3,240          2/98 
                            1994   12/93      4,000        1994            40       3,960          2/97 
</TABLE>

   Variable Compensation. CCL has adopted, effective upon the Distributions, 
a variable compensation plan (the "Plan"), an annual incentive cash 
compensation plan for approximately 950 supervisory, management and executive 
employees similar to an annual performance plan currently maintained by CCL. 
The terms of the Plan are as follows. 

   The performance-based annual cash incentive awards payable under the Plan 
will be grounded in financial goals such as net income, cash flow, operating 
margin, return on equity, or earnings per share, or a combination 

                                       82
<PAGE> 

thereof, and quantifiable non-financial goals. Each participant will be 
assigned a target award, as a percentage of base salary in effect at the end 
of the performance year for which the target is set, payable if the target is 
achieved. Actual results will be compared to the scale of targets with each 
gradation of desired result corresponding to a percentage, which will be 
multiplied by the employee's assigned target award. If the actual result is 
below target, awards will be less than target, down to a point below which no 
awards are earned. If the desired result is above target, awards will be 
greater than target, up to a stated maximum award. The maximum award assigned 
to the chief executive officer may not exceed 200% of base salary in effect 
on the date the CCL Compensation Committee sets the target for the 
performance year. The CCL Compensation Committee retains the right to reduce 
any award if it believes individual performance does not warrant the award 
calculated by reference to the result. 

   Employee Equity Participation Program. CCL has adopted, effective upon the 
Distributions, the Employee Equity Participation Program (the "Program") 
consisting of two plans: (a) a stock option plan (the "CCL Stock Option 
Plan") and (b) an incentive stock plan (the "CCL Incentive Stock Plan"). The 
Program is designed to provide a flexible mechanism to permit key employees 
of CCL and of any subsidiary to obtain significant equity ownership in CCL, 
thereby increasing their proprietary interest in the growth and success of 
CCL. 

   The Program, which will be administered by the CCL Compensation Committee, 
provides for the grant to eligible employees of either non-qualified or 
"incentive stock" options, or both, to purchase shares of CCL Common Stock at 
no less than fair market value on the date of grant. The CCL Compensation 
Committee may also provide that options may not be exercised in whole or in 
part for any period or periods of time; provided, however, that no option 
will be exercisable until at least twelve months from the date of grant. All 
options shall expire not more than ten years from the date of grant. Options 
will not be assignable or transferable except for limited circumstances on 
death. During the lifetime of the employee an option may be exercised only by 
him. The option price must be paid to CCL by the optionee in full prior to 
delivery of the stock. The optionee may pay the option price in cash or with 
shares of CCL Common Stock owned by him. The optionee will have no rights as 
a stockholder with respect to the shares subject to option until shares are 
issued upon exercise of the option. The CCL Compensation Committee may grant 
options pursuant to which an optionee who uses shares of CCL Common Stock to 
pay the purchase price of an option will receive automatically on the date of 
exercise an additional option to purchase shares of CCL Common Stock. Such 
additional option will cover the number of shares tendered in payment of the 
option price, will be exercisable at the then fair market value of CCL Common 
Stock, will become exercisable only after the lapse of twelve months and will 
expire on the expiration date of the original option. 

   The Program also authorizes the CCL Compensation Committee to award to 
eligible employees shares, or the right to receive shares, of CCL Common 
Stock, the equivalent value in cash or a combination thereof (as determined 
by the CCL Compensation Committee). The CCL Compensation Committee shall 
determine the number of shares which are to be awarded to individual 
employees and the number of rights covering shares to be issued upon 
attainment of predetermined performance objectives for specified periods. The 
shares awarded directly to individual employees may be made subject to 
certain restrictions prohibiting sale or other disposition and may be made 
subject to forfeiture in certain events. Shares may be issued to recognize 
past performance either generally or upon attainment of specific objectives. 
Shares issuable for performance (based upon specific predetermined 
objectives) will be payable only to the extent that the CCL Compensation 
Committee determines that an eligible employee has met such objectives and 
will be valued as of the date of such determination. Upon issuance, such 
shares may (but need not) be made subject to the possibility of forfeiture or 
certain restrictions on transfer. 

   Key executive, managerial and technical employees (including officers and 
employees who are directors) of CCL and of any subsidiary will be eligible to 
participate in the Program and the plans thereunder. The selection of 
employees eligible to participate in any plan under the Program is within the 
discretion of the CCL Compensation Committee. Approximately 150 employees 
would have been eligible to participate in the plans under the Program had 
the Program been in effect in 1996. 

   
   Under the Program, the maximum number of shares of CCL Common Stock which 
may be optioned or granted to eligible employees will be 3,000,000. Shares 
from expired or terminated options under the CCL Stock Option Plan will be 
available again for option grant under the Program. Shares which are issued 
but not earned, or which are forfeited under the CCL Incentive Stock Plan, 
will be available again for issuance under the Program. The Program provides 
for appropriate adjustments in the aggregate number of shares subject to the 
Program and in the number of shares and the price per share, or either, of 
outstanding options in the case of changes in the capital stock of CCL 
resulting from any recapitalization, stock or unusual cash dividend, stock 
distribution, stock split or any 
    

                                       83
<PAGE> 

other increase or decrease effected without receipt of consideration by CCL, 
or a merger or consolidation in which CCL is the surviving corporation. 

   The Program has a term of five years and no shares may be optioned or 
awarded and no rights to receive shares may be granted after the expiration 
of the Program. The CCL Board is authorized to terminate or amend the 
Program, except that it may not increase the number of shares available 
thereunder, decrease the price at which options may be granted, change the 
class of employees eligible to participate, or extend the term of the Program 
or options granted thereunder without the approval of the holders of a 
majority of the outstanding shares of CCL Common Stock. 

   CCL believes that the federal income tax consequences of the Program are 
as follows. An optionee who exercises a non-qualified option granted under 
the CCL Stock Option Plan will recognize compensation taxable as ordinary 
income (subject to withholding) in an amount equal to the difference between 
the option price and the fair market value of the shares on the date of 
exercise and CCL or the subsidiary employing the optionee will be entitled to 
a deduction from income in the same amount. The optionee's basis in such 
shares will be increased by the amount taxable as compensation, and his 
capital gain or loss when he disposes of the shares will be calculated using 
such increased basis. 

   If all applicable requirements of the Code with respect to incentive stock 
options are met, no income to the optionee will be recognized and no 
deduction will be allowable to CCL at the time of the grant or exercise of an 
incentive stock option. The excess of the fair market value of the shares at 
the time of exercise of an incentive stock option over the amount paid is an 
item of tax preference which may be subject to the alternative minimum tax. 
In general, if an incentive stock option is exercised three months after 
termination of employment, the optionee will recognize ordinary income in an 
amount equal to the difference between the option price and the fair market 
value of the shares on the date of exercise and CCL or the subsidiary 
employing the optionee will be entitled to a deduction in the same amount. If 
the shares acquired subject to the option are sold within one year of the 
date of exercise or two years from the date of grant, the optionee will 
recognize ordinary income in an amount equal to the difference between the 
option price and the lesser of the fair market value of the shares on the 
date of exercise or the sale price and CCL or the employing subsidiary will 
be entitled to a deduction from income in the same amount. Any excess of the 
sale price over the fair market value on the date of exercise will be taxed 
as a capital gain. 

   Shares of CCL Common Stock which are not subject to restrictions and 
possibility of forfeiture and which are awarded to an employee under the CCL 
Incentive Stock Plan will be treated as ordinary income, subject to 
withholding, to an employee at the time of the transfer of the shares to him 
and the value of such awards will be deductible by CCL or by the subsidiary 
employing the employee at the same time in the same amount. Shares granted 
subject to restrictions and possibility of forfeiture will not be subject to 
tax nor will such grant result in a tax deduction for CCL at the time of 
award. However, when such shares become free of restrictions and possibility 
of forfeiture, the fair market value of such shares at that time (i) will be 
treated as ordinary income to the employee and (ii) will be deductible by CCL 
or by the subsidiary employing the employee. 

   The tax treatment upon disposition of shares acquired under the Program 
will depend upon how long the shares have been held and on whether or not the 
shares were acquired by exercising an incentive stock option. There are no 
tax consequences to CCL upon a participant's disposition of shares acquired 
under the Program, except that CCL may take a deduction equal to the amount 
the participant must recognize as ordinary income in the case of the 
disposition of shares acquired under incentive stock options before the 
applicable holding period has been satisfied. 

   Pension Plans. None of the executive officers of CCL are currently active 
participants in a qualified defined benefit plan of CCL. 

   
   Prior to June 1, 1995, December 1, 1996 and January 1, 1995, respectively, 
Messrs. Freeman, Carothers and VanOort were eligible to participate in, and 
accrue benefits under, Corning's Salaried Pension Plan (the "Corning Salaried 
Pension Plan"), a defined benefit plan, contributions to which are determined 
by Corning's actuaries and are not made on an individual basis. Benefits paid 
under this plan are based upon career earnings (regular salary and cash 
awards paid under Corning's variable compensation plans) and years of 
credited service. The Corning Salaried Pension Plan provides that salaried 
employees of Corning who retire on or after December 31, 1993 will receive 
pension benefits equal to the greater of (a) benefits provided by a formula 
pursuant to which they shall receive for each year of credited service an 
amount equal to 1.5% of annual earnings up to the social security wage base 
    

                                       84
<PAGE> 

and 2% of annual earnings in excess of such base or (b) benefits calculated 
pursuant to a formula which provides that retirees will receive for each year 
of credited service prior to January 1, 1994 an amount equal to 1% of the 
first $24,000 of average earnings for the highest five consecutive years of 
annual earnings in the ten years of credited service immediately prior to 
1994 and 1.5% of such average earnings in excess of $24,000. Effective upon 
commencement of employment, salaried employees may contribute to the Corning 
Salaried Pension Plan 2% of their annual earnings up to the social security 
wage base. Such employees will receive for each year of credited service 
after December 31, 1990, in lieu of the amount described in (a) above, an 
amount equal to 2% of annual earnings. The benefit formula is reviewed and 
adjusted periodically for inflationary and other factors. 

   Corning maintains a non-qualified Executive Supplemental Pension Plan (the 
"Executive Supplemental Plan") pursuant to which it will pay to certain 
executives amounts approximately equal to the difference between the benefits 
provided for under the Corning Salaried Pension Plan and benefits which would 
have been payable thereunder but for the provisions of the Employee 
Retirement Income Security Act of 1974, as amended ("ERISA"). 

   
   It is anticipated that, prior to the Distribution Date, the Compensation 
Committee of the Corning Board will adopt a transferee supplemental pension 
plan (the "Transferee Supplemental Plan"), a nonqualified, unfunded defined 
benefit plan for the benefit of key employees and executive officers of CCL 
who are former employees of Corning, including Messrs. Freeman and VanOort, 
effective immediately after the Distribution Date. The Transferee 
Supplemental Plan will provide benefits approximately equal to the difference 
between the benefits provided for under the Corning Salaried Pension Plan and 
the Executive Supplemental Plan and benefits which would have been payable 
thereunder but for the termination of employment with Corning of such 
employees. 
    

   
   Maximum annual benefits calculated under the straight life annuity option 
form of pension payable to participants at age 65, the normal retirement age 
specified in the Corning Salaried Pension Plan, are illustrated in the table 
set forth below. The table below does not reflect any limitations on benefits 
imposed by ERISA. It is estimated that Messrs. Freeman and VanOort, who have 
24 and 14 years of credited service, respectively, would receive each year if 
they worked to age 65, the normal retirement age specified in the Corning 
Salaried Pension Plan, $      and $     , respectively, under the Corning 
Salaried Pension Plan, the Executive Supplemental Plan and the Transferee 
Supplemental Plan. 
    


<TABLE>
<CAPTION>
                                                 Years of Service 
                    ---------------------------------------------------------------------------- 
Remuneration            15           20           25          30           35           40 
 ----------------- ------------ ------------------------ ------------ ------------  ------------ 
<S>                <C>          <C>         <C>          <C>          <C>           <C>
    $ 100,000 
      200,000 
      300,000 
      400,000 
      500,000 
      600,000 
      700,000 
      800,000 
      900,000 
    1,000,000 
    1,100,000 
    1,200,000 
</TABLE>

   CCL Profit Sharing Plan. Most of the employees of CCL and its subsidiaries 
have been eligible to participate in a tax-qualified, defined contribution 
plan known as the CCL Profit Sharing Plan (the "CCL Profit Sharing Plan"), 
which provides for investment of employee contributions, including 
tax-deferred contributions under Section 401(k) of the Code, and matching 
contributions made by their employers, in several investment funds, including 
Corning Common Stock, at the employees' discretion. Effective as of the 
Distribution Date, CCL Common Stock will be added as an investment fund and a 
portion of the employer matching contributions will automatically be invested 
in CCL Common Stock. Corning Common Stock will no longer be available as an 
investment fund except with respect to amounts already so invested under the 
CCL Profit Sharing Plan. 

   Effective as of the Distribution Date, the CCL Profit Sharing Plan will be 
amended to permit participating employees' employers to make discretionary 
contributions, other than matching contributions, to the CCL Profit Sharing 
Plan for the benefit of such employees, which contributions may be invested 
in CCL Common Stock. 

                                       85
<PAGE> 

   
   CCL Employee Stock Ownership Plan. CCL has adopted, effective upon the 
Distributions, an employee stock ownership plan, as defined in Section 
4975(e)(7) of the Code and related regulations and intended to qualify as a 
retirement plan under Section 401(a) of the Code, to be known as the CCL 
Employee Stock Ownership Plan (the "CCL ESOP"). 
    

   Most employees of CCL and its subsidiaries will become participants in the 
CCL ESOP after accruing six months of service. To the extent permitted under 
the CCL ESOP, CCL will contribute as of the Distribution Date an amount equal 
to a portion of each participating employee's annual compensation. CCL may in 
its discretion from time to time make additional contributions to the CCL 
ESOP for the benefit of participating employees. The assets of the CCL ESOP 
will be invested primarily in shares of CCL Common Stock. 

   Amounts contributed to the CCL ESOP for the benefit of participating 
employees will be 100% vested at age 65, the normal retirement age specified 
in the CCL ESOP, or at death, disability or termination of employment 
following completion of two years of credited service. Contributions to the 
CCL ESOP will not currently be taxable income to the participating employees 
and will not generally be available to them until termination of employment. 

   
   Employee Stock Purchase Plan. CCL has adopted, as of the Distribution 
Date, the Employee Stock Purchase Plan (the "CCL Stock Purchase Plan"), 
pursuant to which CCL may make available for sale to employees shares of its 
Common Stock at a price equal to 85% of the market value on the first or last 
day of each calendar quarter, whichever is lower. 
    

   
   The CCL Stock Purchase Plan, which will be administered by the CCL 
Compensation Committee, is designed to give eligible employees (generally, 
employees of CCL and its subsidiaries) the opportunity to purchase shares of 
CCL Common Stock through payroll deductions up to 10% of compensation in a 
series of quarterly offerings commencing January 1, 1997, and ending no later 
than December 31, 2001. 
    

   Any eligible employee may elect to participate in the CCL Stock Purchase 
Plan on a quarterly basis and may terminate his payroll deduction at any time 
or increase or reduce prospectively the amount of his deduction at the 
beginning of any calendar quarter. At the end of each calendar quarter, a 
participating employee will purchase shares of CCL Common Stock with the 
funds deducted. The number of shares purchased will be a number determined by 
dividing the amount withheld by the lower of 85% of the closing price of a 
share of CCL Common Stock as reported in The Wall Street Journal on the first 
or last business day of the particular calendar quarter. An employee will 
have no interest in any shares of CCL Common Stock until such shares are 
actually purchased by him. 

   
   Under the CCL Stock Purchase Plan, the maximum number of shares of CCL 
Common Stock which may be purchased by eligible employees will be 2,000,000 
shares, subject to adjustment in the case of changes in the capital stock of 
CCL resulting from any recapitalization, stock dividend, stock split or any 
other increase or decrease effected without receipt of consideration by CCL 
or a merger or consolidation in which CCL is the surviving corporation. 
    

   
   The CCL Stock Purchase Plan has a term of five years and no shares of CCL 
Common Stock may be offered for sale or sold under the CCL Stock Purchase 
Plan after the fifth anniversary of the effective date. The CCL Board is 
authorized to terminate or amend the CCL Stock Purchase Plan, except that it 
may not increase the number of shares of CCL Common Stock available 
thereunder, decrease the price at which such shares may be offered for sale 
or extend the term of the CCL Stock Purchase Plan without the approval of the 
holders of a majority of the shares of the capital stock of CCL cast at a 
meeting at which such matter is considered. 
    

   
   Severance Arrangements. On or before the Distribution Date, CCL will adopt 
a severance policy pursuant to which it will provide to each named executive 
officer (other than Mr. Freeman) upon the termination of employment by CCL 
other than for cause upon a determination that the business needs of CCL 
require the replacement of such named executive officer and other than in 
connection with a change of control compensation equal to two times the named 
executive officer's base annual salary at the annual rate in effect on the 
date of termination and two times the annual award of variable compensation 
at the most recent target level. Such named executive officer will also be 
entitled to participate in CCL's health and benefits plans (to the extent 
permitted by the administrative provisions of such plans and applicable 
federal and state law) for a period of up to two years or until such officer 
is covered by a successor employer's benefit plans, whichever first occurs. 
Pursuant to such policy, upon a change of control CCL will provide to each 
named executive officer upon the termination of employment by CCL other than 
for cause, compensation equal to three times annual base salary and three 
times 
    

                                       86
<PAGE> 

   
the award of annual variable compensation at the most recent target level and 
such officer will be entitled to participate in CCL's health and benefit 
plans for a period of up to three years (to the extent permitted by the 
administrative provisions of such plans and applicable federal and state 
law). A "Change in Control" is defined in the policy to include the 
following: the acquisition by a person of 20% or more of the voting stock of 
CCL; the membership of the CCL Board changes as a result of a contested 
election such that a majority of the CCL Board members at any particular time 
were initially placed on the CCL Board as a result of such contested 
election; or approval by CCL's stockholders of a merger or consolidation in 
which CCL is not the survivor thereof, or a sale or disposition of all or 
substantially all of CCL's assets or a plan of partial or complete 
liquidation. 
    

                                       87
<PAGE> 

                   SECURITY OWNERSHIP BY CERTAIN BENEFICIAL 
                         OWNERS AND MANAGEMENT OF CCL 

   
   All of the outstanding shares of CCL Common Stock are currently held by 
CLSI, which is wholly owned by Corning. The following table sets forth the 
number of shares of CCL Common Stock that are projected to be beneficially 
owned after the CCL Spin-Off Distribution by the directors, by the named 
executive officers and by all directors and executive officers of CCL as a 
group. The projections are based on the number of shares of Corning Common 
Stock held by such persons and such group as of October 31, 1996 (excluding 
Career Shares that will be forfeited prior to the Distribution Date and 
Corning Common Stock held in the CCL Profit Sharing Plan and the Corning 
Investment Plans) and on the number of options to acquire Corning Common 
Stock held as of such date and exercisable within 60 days thereof. With 
respect to the shares of CCL Common Stock, the number reflects the 
distribution ratio of one share of CCL Common Stock for every eight shares of 
Corning Common Stock and with respect to options the number reflects the 
actual number of shares of Corning Common Stock subject to options. The stock 
options held by the directors and executive officers of CCL will not affect 
the security ownership of CCL unless (i) such options are exercised prior to 
the Record Date and the underlying shares of Corning Common Stock are held on 
the Record Date or (ii) such options are converted into options to purchase 
shares of CCL Common Stock. 
    


<TABLE>
<CAPTION>
                                       Number of Shares             Number of 
Name                                Beneficially Owned (1)     Exercisable Options 
 ---------------------------------  ------------------------------------------------ 
<S>                                 <C>                    <C>
Van C. Campbell 
Gregory C. Critchfield 
David A. Duke 
Kenneth W. Freeman 
Donald M. Hardison, Jr. 
Douglas M. VanOort 
All Directors and Executive 
 Officers as a Group 
</TABLE>

   
- ------------- 
    

   
(1) Does not include       shares owned by the spouses and minor children of 
    certain executive officers and directors as to which such officers and 
    directors disclaim beneficial ownership. 
    

                                       88
<PAGE> 

                       DESCRIPTION OF CCL CAPITAL STOCK 

General 

   
   The following is a brief summary of certain provisions of the CCL 
Certificate, as the restated certificate of incorporation will be amended 
immediately prior to the CCL Spin-Off Distribution, and does not relate to or 
give effect to provisions of statutory or other law except as specifically 
stated. The CCL Certificate authorizes the issuance of 100,000,000 shares of 
CCL Common Stock. Approximately 28,901,735 shares of CCL Common Stock are 
expected to be outstanding immediately following the CCL Spin-Off 
Distribution. The rights of holders of shares of CCL Common Stock are 
governed by the CCL Certificate, the CCL By-Laws and by the DGCL. 
    


Voting Rights 

   Subject to the voting of any shares of CCL Series Preferred Stock (as 
defined below) that may be outstanding, voting power is vested in the CCL 
Common Stock, each share having one vote. 

Preemptive Rights 

   The CCL Certificate provides that no holder of shares of CCL Common Stock 
or CCL Series Preferred Stock shall have any preemptive rights except as the 
CCL Board may determine from time to time. No such rights have been granted 
by the CCL Board. 

CCL Common Stock 

   Liquidation Rights. Subject to the preferential rights of any outstanding 
CCL Series Preferred Stock, in the event of any liquidation of CCL, holders 
of shares of CCL Common Stock then outstanding are entitled to share ratably 
in the assets of CCL available for distribution to such holders. 

   
   Dividend Policy. Subject to any preferential rights of any outstanding CCL 
Series Preferred Stock or CCL Nonvoting Cumulative Preferred Stock, such 
dividends as may be determined by the CCL Board may be declared and paid on 
the shares of CCL Common Stock from time to time out of any funds legally 
available therefor. It is currently contemplated that, following the 
Distributions, CCL will not pay cash dividends in the foreseeable future, but 
will retain earnings to provide funds for the operation and expansion of its 
business. Dividend decisions will be based upon a number of factors, 
including the operating results and financial requirements of CCL and such 
other considerations as the CCL Board deems relevant. In addition, the CCL 
Credit Facility prohibits CCL from paying cash dividends on the CCL Common 
Stock. Further, the Indenture under which the Notes will be issued will 
restrict CCL's ability to pay cash dividends on the CCL Common Stock based on 
a percentage of CCL's cash flow. 
    

   Other Provisions. The shares of CCL Common Stock have no redemption, 
sinking fund or conversion privileges applicable thereto and holders of 
shares of CCL Common Stock are not liable to assessments or to further call. 

   Listing and Trading. Prior to the Distributions, there has been no public 
trading market for the CCL Common Stock although a "when issued" market is 
expected to develop prior to the Distribution Date. Application has been made 
to list the CCL Common Stock on the NYSE, subject to official notice of the 
Distributions, under the trading symbol "  ." Prices at which CCL Common 
Stock may trade prior to the Distributions on a "when-issued" basis or after 
the Distributions cannot be predicted. Until shares of the CCL Common Stock 
are fully distributed and an orderly market develops, the prices at which 
trading in such stock occurs may fluctuate significantly. The prices at which 
CCL Common Stock will trade will be determined by the marketplace and may be 
influenced by many factors, including, among others, the depth and liquidity 
of the market for CCL Common Stock, investor perceptions of CCL, the clinical 
laboratory testing business, and general economic and market conditions. CCL 
initially will have approximately    stockholders of record, based on the 
number of holders of record of Corning Common Stock at the date of this 
Information Statement. The Transfer Agent and Registrar for the CCL Common 
Stock will be Harris Trust and Savings Bank. For certain information 
regarding options to purchase CCL Common Stock that may become outstanding 
after the Distributions, see "Management of CCL." 

CCL Series Preferred Stock 

   The CCL Certificate authorizes the issuance of up to 10,000,000 shares of 
CCL Series Preferred Stock, par value $    per share (the "CCL Series 
Preferred Stock"). The CCL Board has the authority to issue such shares from 
time to time, without stockholder approval, and to determine the 
designations, preferences, rights, including 

                                       89
<PAGE> 

   
voting rights, and restrictions of such shares, subject to the DGCL. Pursuant 
to this authority, the CCL Board has designated    shares of CCL Series 
Preferred Stock as CCL Series A Preferred Stock and 1,000 shares of CCL 
Nonvoting Cumulative Preferred Stock. No other class of CCL Series Preferred 
Stock has been designated by the CCL Board. 
    

   
Nonvoting Cumulative Preferred Stock 
    

   
   General. Prior to the CCL Spin-off Distribution, CCL will issue to Corning 
1,000 shares of Nonvoting Cumulative Preferred Stock, liquidation preference 
$1,000 per share (the "CCL Nonvoting Cumulative Preferred Stock") without 
further stockholder approval. 
    

   
   Dividend Policy. Holders of shares of CCL Nonvoting Cumulative Preferred 
Stock will be entitled to receive, when, as and if declared by the CCL Board 
out of funds legally available for the purpose, quarterly dividends payable 
in cash at the rate of 10% (the "Dividend Rate") per annum, provided, 
however, that the Dividend Rate per annum shall be the greater of (a) 10% and 
(b) the yield to maturity of the Notes expressed as a percentage plus 1%. 
    

   
   Voting Rights. The holders of shares of CCL Nonvoting Cumulative Preferred 
Stock will have no voting rights whatsoever, except for any voting rights to 
which they may be entitled under the laws of the State of Delaware, and 
except as follows: 
    

   
   (a) Whenever, at any time or times, dividends payable on the shares of CCL 
Nonvoting Cumulative Preferred Stock or on any Parity Preferred Stock (as 
defined below) with respect to payment of dividends, shall be in arrears for 
an aggregate number of days equal to six calendar quarters or more, whether 
or not consecutive, the holders of the outstanding shares of CCL Nonvoting 
Cumulative Preferred Stock will have the right, with holders of shares of CCL 
Common Stock and any other capital stock of CCL having voting rights (voting 
together as one class), to vote on all matters submitted to a vote of the 
shareholders of CCL until such arrearages have been paid or set apart for 
payment, at which time such right shall terminate, except as herein or by law 
expressly provided, subject to revesting in the event of each and every 
subsequent default of the character above mentioned. So long as holders of 
CCL Nonvoting Cumulative Preferred Stock are entitled to vote, each holder of 
shares of CCL Nonvoting Cumulative Preferred Stock shall be entitled to one 
vote for each share held (the holders of shares of any other class or series 
of preferred stock having like voting rights being entitled to such number of 
votes, if any, for each share of such stock held as may be granted to them). 
    

   
   (b) So long as any shares of CCL Nonvoting Cumulative Preferred Stock 
remain outstanding, the consent of the holders of at least two-thirds of the 
shares of CCL Nonvoting Cumulative Preferred Stock outstanding at the time 
and all other classes or series of stock upon which like voting rights have 
been conferred and are exercisable (voting together as one class) given in 
person or by proxy, either in writing or at any meeting called for the 
purpose, will be necessary to permit, effect or validate the amendment, 
alteration or repeal, whether by merger, consolidation or otherwise, of any 
of the provisions of the CCL Certificate that would materially and adversely 
affect any power, preference, or special right of the shares of CCL Nonvoting 
Cumulative Preferred Stock or of the holders thereof; provided, however, that 
any increase in the amount of authorized CCL Common Stock or authorized 
preferred stock or any increase or decrease in the number of shares of any 
series of preferred stock or the creation and issuance of other series of 
common stock or preferred stock shall not be deemed to materially adversely 
affect the powers, preferences or special rights of the CCL Nonvoting 
Cumulative Preferred Stock. 
    

   
   Certain Restrictions. Whenever quarterly dividends or other dividends or 
distributions payable on the CCL Nonvoting Cumulative Preferred Stock are in 
arrears, thereafter and until all accrued and unpaid dividends and 
distributions, whether or not declared, on shares of CCL Nonvoting Cumulative 
Preferred Stock outstanding shall have been paid in full, CCL shall not: 
    

   
     (i) declare or pay dividends, or make any other distributions, on any 
   shares of stock ranking junior (either as to dividends or upon 
   liquidation, dissolution or winding-up) to the CCL Nonvoting Cumulative 
   Preferred Stock; 
    

   
     (ii) declare or pay dividends, or make any other distributions, on any 
   shares of Parity Preferred Stock on which dividends are payable or in 
   arrears in proportion to the total amounts to which the holders of all 
   such shares are then entitled; 
    

                                       90
<PAGE> 

   
     (iii) redeem or purchase or otherwise acquire for consideration shares 
   of any stock ranking junior (either as to dividends or upon liquidation, 
   dissolution or winding-up) to the CCL Nonvoting Cumulative Preferred 
   Stock, provided that CCL may at any time redeem, purchase or otherwise 
   acquire shares of any such junior stock in exchange for shares of any 
   stock of CCL ranking junior (either as to dividends or upon dissolution, 
   liquidation or winding-up) to the CCL Nonvoting Cumulative Preferred 
   Stock; or 
    

   
     (iv) redeem or purchase or otherwise acquire for consideration any 
   shares of CCL Nonvoting Cumulative Preferred Stock, or any shares of stock 
   ranking on a parity with the CCL Nonvoting Cumulative Preferred Stock, 
   except in accordance with a purchase offer made in writing or by 
   publication (as determined by the CCL Board) to all holders of such shares 
   upon such terms as the CCL Board, after consideration of the respective 
   annual dividend rates and other relative rights and preferences of the 
   respective series and classes, shall determine in good faith will result 
   in fair and equitable treatment among the respective series or classes. 
    

   
   CCL shall not permit any subsidiary of CCL to purchase or otherwise 
acquire for consideration any shares of stock of CCL unless CCL could 
purchase or otherwise acquire such shares at such time and in such manner. 
    

   
   Liquidation Preference. The shares of CCL Nonvoting Cumulative Preferred 
Stock shall rank, as to liquidation, dissolution or winding-up of CCL, prior 
to the shares of CCL Common Stock and any other class of stock of CCL ranking 
junior to the CCL Nonvoting Cumulative Preferred Stock as to rights upon 
liquidation, dissolution or winding-up of CCL, so that in the event of any 
liquidation, dissolution or winding-up of CCL, whether voluntary or 
involuntary, the holders of the CCL Nonvoting Cumulative Preferred Stock 
shall be entitled to receive out of the assets of CCL available for 
distribution to its shareholders, whether from capital, surplus or earnings, 
before any distribution is made to holders of shares of CCL Common Stock or 
any other such junior stock, an amount equal to $1,000 per share (the 
"Liquidation Preference" of a share of CCL Nonvoting Cumulative Preferred 
Stock) plus an amount equal to all dividends (whether or not earned or 
declared) accrued and accumulated and unpaid on the shares of CCL Nonvoting 
Cumulative Preferred Stock to the date of final distribution. The holders of 
the CCL Nonvoting Cumulative Preferred Stock will not be entitled to receive 
the Liquidation Preference and such dividends until the liquidation 
preference of any other class of stock of CCL ranking senior to the CCL 
Nonvoting Cumulative Preferred Stock as to rights upon liquidation, 
dissolution or winding-up shall have been paid (or a sum set aside therefor 
sufficient to provide for payment) in full. After payment of the full amount 
of the Liquidation Preference and such dividends, the holders of shares of 
CCL Nonvoting Cumulative Preferred Stock will not be entitled to any further 
participation in any distribution of assets by CCL. If, upon any liquidation, 
dissolution or winding-up of CCL, the assets of CCL, or proceeds thereof, 
distributable among the holders of the shares of CCL Nonvoting Cumulative 
Preferred Stock and Parity Preferred Stock shall be insufficient to pay in 
full the preferential amount aforesaid, then such assets, or the proceeds 
thereof, shall be distributable among such holders ratably in accordance with 
the respective amounts which would be payable on such shares if all amounts 
payable thereon were paid in full. For the purposes hereof, neither a 
consolidation or merger of CCL with or into any other corporation, nor a 
merger of any other corporation with or into CCL, nor a sale or transfer of 
all or any part of CCL's assets for cash or securities shall be considered a 
liquidation, dissolution or winding-up of CCL. 
    

   
   Conversion. The CCL Nonvoting Cumulative Preferred Stock is not 
convertible into shares of any other class or series of stock of CCL. 
    

   
   Optional Redemption. The shares of the CCL Nonvoting Cumulative Preferred 
Stock may be redeemed at the option of CCL, as a whole, or from time to time 
in part, at any time, out of funds legally available therefor, upon giving a 
notice or redemption at least 30 days prior to the date set for redemption; 
provided, however, that shares of the CCL Nonvoting Cumulative Preferred 
Stock shall not be redeemable prior to December 31, 2002. Subject to the 
foregoing, on or after such date, shares of the CCL Nonvoting Cumulative 
Preferred Stock are redeemable at the redemption prices per share (expressed 
as a percentage of the Liquidation Preference set forth below) plus an amount 
in cash equal to all dividends (whether or not earned or declared) accrued 
and accumulated and unpaid to, but excluding, the date fixed for redemption 
(the "Redemption Amount") if redeemed during the 12-month period beginning 
January 1 of each of the years set forth below: 
    

                                       91
<PAGE> 

<TABLE>
<CAPTION>
   Year                        Percentage 
- -------------------------  --------------- 
<S>                            <C>

2003                           106.000% 
2004                           104.000% 
2005                           102.000% 
2006 and thereafter            100.000% 
</TABLE>

   
If CCL effects such redemption, it shall do so ratably according to the 
number of shares held by each holder of CCL Nonvoting Cumulative Preferred 
Stock. 
    

   
Mandatory Redemption. On January 1, 2022, CCL shall redeem all of the then 
outstanding shares of CCL Nonvoting Cumulative Preferred Stock, out of funds 
legally available therefor at a redemption price equal to the Liquidation 
Preference. The redemption payment for each share of CCL Nonvoting Cumulative 
Preferred Stock shall be the Redemption Amount, in cash, as of January 1, 
2022. 
    

   
Authorization and Issuance of Other Securities. No consent of the holders of 
the CCL Nonvoting Cumulative Preferred Stock shall be required for (a) the 
creation of any indebtedness of any kind of CCL, (b) the creation, or 
increase or decrease in the amount, of any class or series of stock of CCL 
ranking on a parity with or senior to the CCL Nonvoting Cumulative Preferred 
Stock as to the payment of dividends or amounts upon liquidation, dissolution 
or winding up or (c) any increase or decrease in the amount of authorized 
Common Stock or any increase, decrease or change in the par value thereof or 
in any other terms thereof. 
    

   
Rank. The CCL Nonvoting Cumulative Preferred Stock will rank senior to the 
CCL Common Stock and the Series A Preferred Stock, on a parity with any 
series of preferred stock ranking on a parity with the CCL Nonvoting 
Cumulative Preferred Stock as to the payment of dividends and amounts upon 
liquidation, dissolution and winding- up (a "Parity Preferred Stock"), and 
junior to all other series of preferred stock that do not expressly provide 
that such series is to rank junior to or on a parity with the CCL Nonvoting 
Cumulative Preferred Stock. 
    


Preferred Share Purchase Rights 

   Attached to each share of CCL Common Stock is one right ("CCL Right"), 
which entitles the registered holder to purchase from CCL one one-hundredth 
of a share of CCL Series A Preferred Stock at a price of $[50] per one- 
hundredth of a share of CCL Series A Preferred Stock (the "Exercise Price"), 
subject to adjustment. The CCL Rights expire on December 31, 2006 (the "Final 
Expiration Date"), unless the Final Expiration Date is extended or unless the 
CCL Rights are earlier exercised. 

   The CCL Rights represented by the certificates for shares of CCL Common 
Stock are not exercisable, and are not transferable apart from the shares of 
CCL Common Stock, until the earlier of (1) ten days following the public 
announcement by CCL or an Acquiring Person (as defined below) that a person 
or group has acquired beneficial ownership of 20% or more of the shares of 
CCL Common Stock (an "Acquiring Person") or (2) ten business days (or such 
later date as the CCL Board may determine prior to such time as any person or 
group of affiliated persons becomes an Acquiring Person) after the 
commencement or first public announcement of an intention to make a tender or 
exchange offer that would result in a person or group beneficially owning 20% 
or more of the shares of CCL Common Stock (the earlier of such dates being 
called the "Rights Distribution Date"). The CCL Board has the authority to 
determine that a person that has inadvertently acquired beneficial ownership 
of 20% of the shares of CCL Common Stock is not an Acquiring Person if such 
person promptly reduces its ownership interest to below 20%. Separate 
certificates for the CCL Rights will be mailed to holders of record of the 
shares of CCL Common Stock as of such date. The CCL Rights could then begin 
trading separately from the shares of CCL Common Stock. 

   Generally, in the event that a person or group becomes an Acquiring 
Person, each CCL Right (other than the CCL Rights owned by the Acquiring 
Person and certain affiliated persons) will thereafter entitle the holder to 
receive, upon exercise of the CCL Right, shares of CCL Common Stock having a 
value equal to two times the Exercise Price of the CCL Right. In the event 
that a person or group becomes an Acquiring Person (but prior to such time as 
such person or group beneficially owns 50% or more of the outstanding shares 
of CCL Common Stock), the CCL Board may exchange each CCL Right and each one 
one-hundredth of a share of CCL Series A Preferred Stock (other than CCL 
Rights and CCL Series A Preferred Stock owned by the Acquiring Person and 
certain affiliated persons) for one share of CCL Common Stock. In the event 
that CCL is acquired in a merger, consolidation, or other business 
combination transaction or more than 50% of CCL's assets, cash flow or 
earning power is sold 

                                       92
<PAGE> 

or transferred, each CCL Right (other than the CCL Rights owned by an 
Acquiring Person and certain affiliated persons) will thereafter entitle the 
holder thereof to receive, upon the exercise of the CCL Right, common stock 
of the acquiring corporation having a value equal to two times the Exercise 
Price of the CCL Right. 

   The CCL Rights are redeemable in whole, but not in part, at $.01 per CCL 
Right at any time prior to any person or group becoming an Acquiring Person. 
The right to exercise the CCL Rights terminates at the time that the CCL 
Board elects to redeem the CCL Rights. Notice of redemption shall be given by 
mailing such notice to the registered holders of the CCL Rights. At no time 
will the CCL Rights have any voting rights. The CCL Rights Agent is Harris 
Trust and Savings Bank (the "CCL Rights Agent"). 

   The exercise price payable, and the number of shares of CCL Series A 
Preferred Stock or other securities or property issuable, upon exercise of 
the CCL Rights are subject to adjustment from time to time to prevent 
dilution (i) in the event of a stock dividend on, or a subdivision, 
combination or reclassification of, the shares of CCL Series A Preferred 
Stock, (ii) upon the grant to holders of the shares of CCL Series A Preferred 
Stock of certain rights or warrants to subscribe for or purchase shares of 
CCL Series A Preferred Stock at a price, or securities convertible into 
shares of CCL Series A Preferred Stock with a conversion price, less than the 
then current market price of the shares of CCL Series A Preferred Stock or 
(iii) upon the distribution to holders of the shares of CCL Series A 
Preferred Stock of evidences of indebtedness or assets (excluding regular 
periodic cash dividends paid out of earnings or retained earnings or 
dividends payable in shares of CCL Series A Preferred Stock) or of 
subscription rights or warrants (other than those referred to above). 

   The number of outstanding CCL Rights and the number of one one-hundredths 
of a share of CCL Series A Preferred Stock issuable upon exercise of each CCL 
Right are also subject to adjustment in the event of a stock split of, or 
stock dividend on, or subdivision, consolidation or combination of, the 
shares of CCL Common Stock prior to the CCL Rights Distribution Date. With 
certain exceptions, no adjustment in the exercise price will be required 
until cumulative adjustments require an adjustment of at least 1% in such 
exercise price. 

   Upon exercise of the CCL Rights, no fractional shares of CCL Series A 
Preferred Stock will be issued (other than fractions which are integral 
multiples of one one-hundredth of a share, which may, at the election of CCL, 
be evidenced by depository receipts) and in lieu thereof an adjustment in 
cash will be made. 

   The CCL Rights have certain antitakeover effects. The CCL Rights may cause 
substantial dilution for a person or group that attempts to acquire CCL on 
terms not approved by the CCL Board, except pursuant to an offer conditioned 
on a substantial number of CCL Rights being acquired. The CCL Rights should 
not interfere with any merger or other business combination approved by the 
CCL Board since the CCL Rights may be redeemed by CCL at $.01 per CCL Right 
prior to the acquisition by a person or group of beneficial ownership of 20% 
or more of the shares of CCL Common Stock. 

   The shares of CCL Series A Preferred Stock purchasable upon exercise of 
the CCL Rights will rank junior to all other series of CCL's preferred stock 
or any similar stock that specifically provides that they shall rank prior to 
the shares of CCL Series A Preferred Stock. The shares of CCL Series A 
Preferred Stock will be nonredeemable. Each share of CCL Series A Preferred 
Stock will be entitled to a minimum preferential quarterly dividend of $1 per 
share, but will be entitled to an aggregate dividend of 100 times the 
dividend declared per share of CCL Common Stock. In the event of liquidation, 
the holders of the shares of CCL Series A Preferred Stock will be entitled to 
a minimum preferential liquidation payment of $1 per share, but will be 
entitled to an aggregate payment of 100 times the payment made per share of 
CCL Common Stock. Each share of CCL Series A Preferred Stock will have 100 
votes, voting together with the shares of CCL Common Stock. In the event of 
any merger, consolidation or other transaction in which shares of CCL Common 
Stock are exchanged, each share of CCL Series A Preferred Stock will be 
entitled to receive 100 times the amount and type of consideration received 
per share of CCL Common Stock. These rights are protected by customary 
antidilution provisions. Because of the nature of the CCL Series A Preferred 
Stock's dividend, liquidation and voting rights, the value of the interest in 
a share of CCL Series A Preferred Stock purchasable upon the exercise of each 
CCL Right approximates the value of one share of CCL Common Stock. 

   
   The foregoing description of the CCL Rights, which describes all of the 
material terms of the CCL Rights, does not purport to be complete and is 
qualified in its entirety by reference to the description of the CCL Rights 
contained in the CCL Rights Agreement, dated as of     , 1996 between CCL and 
the CCL Rights Agent, which agreement will be filed as an exhibit to CCL's 
registration statement on Form 10 (the "CCL Form 10") that CCL 
    

                                       93
<PAGE> 

   
has filed with the Commission. Prior to the CCL Rights Distribution Date, the 
CCL Rights Agreement may be amended in any respect. After the CCL Rights 
Distribution Date, the CCL Rights Agreement may be amended in any respect 
that does not adversely affect the CCL Rights holders. 
    


Restrictions on Transfer 

   Shares of the CCL Common Stock distributed to Corning shareholders will be 
freely transferable, except for shares received by any persons who may be 
deemed to be "affiliates" of CCL as that term is defined in Rule 144 
promulgated under the Securities Act, which shares will remain subject to the 
resale limitations of Rule 144. Persons who may be deemed to be affiliates of 
CCL after the CCL Spin-off Distribution generally include individuals or 
entities that control, are controlled by, or are under common control with 
CCL and may include certain officers and directors of CCL as well as 
principal stockholders of CCL. Persons who are affiliates of CCL will be 
permitted to sell their shares of CCL only pursuant to an effective 
registration statement under the Securities Act or an exemption from the 
registration requirements of the Securities Act, such as the exemption 
provided by Section 4(1) of the Securities Act or Rule 144 thereunder. The 
Section 4(1) exemption allows the sale of unregistered shares by a person who 
is not an issuer, an underwriter or a dealer. Rule 144 provides persons who 
are not issuers with objective standards for selling restricted securities 
and securities held by affiliates without registration. The rule requires (1) 
current public information be available concerning the issuer; (2) volume 
limitations be placed on sales during any three-month period; and (3) 
compliance with certain manner of sale restrictions. The amount of the CCL 
Common Stock which could be sold under Rule 144 during a three-month period 
cannot exceed the greater of (1) 1% of the outstanding shares of CCL Common 
Stock, or (2) the average weekly trading volume for the shares for a 
four-week period prior to the date that notice of the sale is filed with the 
Commission. 

                                       94
<PAGE> 

              ANTITAKEOVER EFFECTS OF CERTAIN PROVISIONS OF THE 
                 CCL CERTIFICATE OF INCORPORATION AND BY-LAWS 

General 

   In addition to the CCL Rights, the CCL Certificate and the CCL By-Laws 
contain other provisions that may discourage a third party from seeking to 
acquire CCL, or to commence a proxy contest or other takeover-related action. 
These provisions, which are in all material respects identical to the 
provisions contained in the certificate of incorporation and By-Laws of 
Corning, are intended to enhance the likelihood of continuity and stability 
in the composition of the CCL Board and in the policies formulated by the CCL 
Board and to discourage certain types of transactions that may involve an 
actual or threatened change of control of CCL. These provisions are designed 
to reduce the vulnerability of CCL to an unsolicited acquisition proposal and 
also to discourage certain tactics that may be used in proxy fights. Because 
such provisions could have the effect of discouraging potential acquisition 
proposals, they may consequently inhibit fluctuations in the market price of 
CCL Common Stock which could result from actual or rumored takeover attempts. 
Such provisions also may have the effect of preventing changes in the 
management of CCL. See "Risk Factors--Risks Relating to CCL--Certain 
Provisions Relating to Change in Control." 

Board of Directors 

   The CCL Certificate provides that, effective as of the CCL Spin-Off 
Distribution, the CCL Board is divided into three classes, with the classes 
to be nearly as equal as possible. One class has a term expiring at the 1998 
annual meeting of stockholders of CCL; the second class has a term expiring 
at the 1999 annual meeting of stockholders of CCL; and the third class has a 
term expiring at the 2000 annual meeting of stockholders of CCL. At each 
annual meeting of stockholders, one class of the CCL Board will be elected 
for a three-year term. The classification of directors has the effect of 
making it more difficult to change the composition of the CCL Board. At least 
two annual meetings of stockholders, instead of one, generally will be 
required to effect a change in the majority of the CCL Board. The CCL Board 
believes that the longer time required to elect a majority of a classified 
board will help ensure the continuity and stability of CCL's management and 
policies, because in most cases a majority of the directors at any given time 
will have had prior experience as directors of CCL. 

   Under the DGCL, unless the certificate of incorporation otherwise 
provides, a director on a classified board may only be removed by the 
stockholders for cause. The CCL Certificate provides that a director of CCL 
is only removable by the stockholders for cause. The CCL Certificate limits 
the number of directors to twelve and requires that any vacancies on the CCL 
Board be filled only by a majority of the entire CCL Board. The provisions of 
the DGCL and the CCL Certificate relating to the removal of directors and the 
filling of vacancies on the CCL Board preclude a third party from removing 
incumbent directors without cause and simultaneously gaining control of the 
CCL Board by filling, with its own nominees, the vacancies created by 
removal. These provisions also reduce the power of stockholders generally, 
even those with a majority voting power in CCL, to remove incumbent directors 
and to fill vacancies on the CCL Board without the support of the incumbent 
directors. 

Stockholder Action and Special Meetings 

   The CCL Certificate provides that all stockholder actions to be effected 
by written consent and not a duly called meeting must be effected by the 
unanimous written consent of all stockholders entitled to consent thereto. 
This provision reduces the power of the CCL stockholders and precludes a 
stockholder of CCL from conducting any form of consent solicitation. The CCL 
Certificate also does not permit stockholders of CCL to call special meetings 
of stockholders. 

Advance Notice Requirements for Stockholder Proposals and Director 
Nominations 

   The CCL By-Laws contain an advance notice procedure with respect to the 
nomination, other than by or at the direction of the CCL Board or a committee 
thereof, of candidates for election as directors as well as for other 
stockholder proposals to be considered at annual meetings of stockholders. 
Delivery of a notice with the required information must be delivered to the 
Secretary of CCL not later than 60 days nor more than 90 days prior to the 
date of the stockholders' meeting at which the nomination or other proposal 
is to be considered. No matters can be considered at special meetings of the 
stockholders other than such matters as are set forth in the notice of 
meeting. 

                                       95
<PAGE> 

Although the notice provisions do not give the CCL Board any power to approve 
or disapprove stockholder nominations or proposals for action by CCL, they 
may have the effect of (i) precluding a contest for the election of directors 
or the consideration of stockholder proposals if the procedures established 
by the CCL By-Laws are not followed and (ii) discouraging or deterring any 
third party from conducting a solicitation of proxies to elect its own slate 
of directors or to approve its proposals, without regard to whether 
consideration of such nominees or proposals might be harmful or beneficial to 
CCL and its stockholders. The purpose of requiring advance notice is to 
afford the CCL Board an opportunity to consider the qualifications of the 
proposed nominees or the merits of other stockholder proposals and, to the 
extent deemed necessary or desirable by the CCL Board, to inform stockholders 
about those matters. 

Business Combinations with Interested Stockholders 

   Paragraph 6 of the CCL Certificate (the "Fair Price Amendment") requires 
the approval by the holders of at least 80% of the voting power of the 
outstanding capital stock of CCL entitled to vote generally in the election 
of directors (the "CCL Voting Stock") as a condition for mergers and certain 
other Business Combinations (as defined below) with any beneficial owner of 
more than 10% of such voting power (an "Interested Stockholder") unless (i) 
the transaction is approved by at least a majority of the Continuing 
Directors (as defined below) or (ii) certain minimum price, form of 
consideration and procedural requirements are met. 

   An Interested Stockholder, in general, is defined as any person or group 
who is, or was at any time within the two-year period immediately prior to 
the date in question, the beneficial owner of more than 10% of the voting 
power of the CCL Voting Stock. The term "beneficial owner" includes persons 
directly or indirectly owning or having the right to acquire or vote the 
shares. In certain circumstances, an Interested Stockholder could include 
persons or entities affiliated or associated with the Interested Stockholder. 

   A Business Combination generally includes the following transactions: (i) 
a merger or consolidation of CCL or any subsidiary with an Interested 
Stockholder; (ii) the sale or other disposition by CCL or a subsidiary of 
assets having an aggregate fair market value of $20,000,000 or more if an 
Interested Stockholder is a party to the transaction; (iii) the issuance or 
transfer of stock or other securities of CCL or of a subsidiary to an 
Interested Stockholder in exchange for cash or property (including stock or 
other securities) having an aggregate fair market value of $20,000,000 or 
more; (iv) the adoption of any plan or proposal for the liquidation or 
dissolution of CCL proposed by or on behalf of an Interested Stockholder; (v) 
any reclassification of securities, recapitalization, merger or consolidation 
with a subsidiary or other transaction which has the effect, directly or 
indirectly, of increasing the percentage of the outstanding stock of any 
class of CCL or a subsidiary owned by an Interested Stockholder; or (vi) any 
agreement, contract or other arrangement providing for any one or more of the 
foregoing actions. 

   A Continuing Director is in general (i) any member of the CCL Board who is 
not an Interested Stockholder or affiliated or associated with an Interested 
Stockholder and was a director of CCL prior to the time the Interested 
Stockholder became an Interested Stockholder, and any successor to such a 
Continuing Director who is not affiliated or associated with an Interested 
Stockholder and was recommended or elected by a majority of the Continuing 
Directors then on the CCL Board, or (ii) any person who was a director of CCL 
as of the Distribution Date and any successor thereto who was recommended or 
elected by a majority of the Continuing Directors then on the CCL Board. It 
is possible that the approval of a majority of the Continuing Directors could 
be required in circumstances where the Continuing Directors constitute less 
than a quorum of the entire CCL Board. 

   The 80% affirmative stockholder vote would not be required if the Business 
Combination in question had been approved by a majority of the Continuing 
Directors or if all the minimum price, form of consideration and procedural 
requirements described below are satisfied. 

   Minimum Price and Form of Consideration Requirements. In a Business 
Combination involving cash or other consideration being paid to CCL's 
stockholders, the consideration required, in the case of each class of CCL 
Voting Stock, would be either cash or the same type of consideration used by 
the Interested Stockholder in acquiring the largest portion of its share of 
that class of CCL Voting Stock prior to the first public announcement of the 
proposed Business Combination. In addition, such consideration would be 
required to meet the minimum price requirements described below. 

   In the case of payments to holders of CCL Common Stock, the fair market 
value per share of such payments would be at least equal in value to the 
higher of (i) the highest per share price paid by the Interested Stockholder 

                                       96

<PAGE> 

in acquiring any shares of CCL Common Stock during the two years prior to the 
first public announcement of the proposed Business Combination (the 
"Announcement Date") or in the transaction in which it became an Interested 
Stockholder, whichever is higher, and (ii) the fair market value per share of 
CCL Common Stock on the Announcement Date or on the date on which the 
Interested Stockholder became an Interested Stockholder, whichever is higher. 

   In the case of payments to holders of any series of CCL's voting Series 
Preferred Stock, if any, the fair market value per share of such payments 
would have to be at least equal to the higher of (i) the price per share 
determined with respect to shares of such series in the same manner as 
described in the preceding paragraph with respect to shares of Common Stock 
and (ii) the highest preferential amount per share to which the holders of 
such series of CCL Series Preferred Stock are entitled in the event of a 
voluntary or involuntary liquidation of CCL. 

   If the transaction does not involve any cash or other property being 
received by any of the other stockholders, such as a sale of assets or an 
issuance of CCL's securities to an Interested Stockholder, then the minimum 
price, form of consideration and procedural requirements would not apply, but 
an 80% vote of stockholders would still be required unless the transaction 
was approved by a majority of the Continuing Directors. 

   Procedural Requirements. An 80% stockholder vote would be required to 
authorize a Business Combination with an Interested Stockholder if CCL, after 
the interested stockholder became an Interested Stockholder, had failed to 
pay full quarterly dividends on its Preferred Stock, if any, or reduced the 
rate of dividends paid on its Common Stock, unless such failure or reduction 
was approved by a majority of the Continuing Directors. 

   An 80% stockholder vote to authorize a Business Combination with an 
Interested Stockholder would also be required if the Interested Stockholder 
had acquired any additional shares of the CCL Voting Stock, directly from CCL 
or otherwise, in any transaction subsequent to the transaction pursuant to 
which it became an Interested Stockholder. 

   The receipt by the Interested Stockholder at any time after it became an 
Interested Stockholder, whether in connection with the proposed Business 
Combination or otherwise, of the benefit of any loans or other financial 
assistance or tax advantages provided by CCL (other than proportionately as a 
stockholder) would also trigger the 80% stockholder vote requirement to 
authorize a Business Combination with an Interested Stockholder (unless the 
Business Combination was approved by a majority of the Continuing Directors). 

   In summary, none of the minimum price, form of consideration or procedural 
requirements described above would apply in the case of a Business 
Combination approved by a majority of the Continuing Directors. In the 
absence of such approval, all of such requirements would have to be satisfied 
to avoid the 80% stockholder vote requirements. 

Amendment of the CCL Certificate 

   Amendment or repeal of the provisions of the CCL Certificate described 
above or the adoption of any provision inconsistent therewith would require 
the affirmative vote of at least 80% of the CCL Voting Stock unless the 
proposed amendment or repeal or the adoption of the inconsistent provisions 
are approved by two-thirds of the entire CCL Board and a majority of the 
Continuing Directors. 

Antitakeover Statutes 

   Section 203 of the DGCL prohibits transactions between a Delaware 
corporation and an "interested stockholder," which is defined therein as a 
person who, together with any affiliates and/or associates of such person, 
beneficially owns, directly or indirectly, 15% or more of the outstanding 
voting shares of a Delaware corporation. This provision prohibits certain 
business combinations (defined broadly to include mergers, consolidations, 
sales or other dispositions of assets having an aggregate value in excess of 
10% of the consolidated assets of the corporation, and certain transactions 
that would increase the interested stockholder's proportionate share 
ownership in the corporation) between an interested stockholder and a 
corporation for a period of three years after the date the interested 
stockholder acquired its stock unless (i) the business combination is 
approved by the corporation's board of directors prior to the date the 
interested stockholder acquired shares, (ii) the interested stockholder 
acquired at least 85% of the voting stock of the corporation in the 
transaction in which it becomes an interested stockholder, 

                                       97
<PAGE> 

or (iii) the business combination is approved by a majority of the board of 
directors and by the affirmative vote of 66 2/3% of the votes entitled to be 
cast by disinterested stockholders at an annual or special meeting. The CCL 
Certificate and the CCL By-Laws do not exclude CCL from the restrictions 
imposed under Section 203 of the DGCL. 

Tax Sharing and Indemnification Agreements 

   
   The corporate tax liability which potentially could arise from an 
acquisition of shares of CCL capital stock or assets of CCL for a period of 
time following the CCL Spin-Off Distribution, together with the related 
indemnification arrangements contained in the Tax Sharing and Spin-Off Tax 
Indemnification Agreements, could have an antitakeover effect on the 
acquisition of control of CCL. See "The Relationship Among Corning, CCL and 
Covance After the Distributions--Tax Sharing Agreement" and "The Relationship 
Among Corning, CCL and Covance After the Distributions--Spin-Off Tax 
Indemnification Agreements." 
    

                                       98
<PAGE> 

                  DESCRIPTION OF CERTAIN INDEBTEDNESS OF CCL 

Description of Notes 

   
   Prior to the Distributions, CCL will offer (the "CCL Notes Offering") $150 
million aggregate principal amount of senior subordinated notes (the 
"Notes"). The following summary of the terms of the Notes and the Indenture 
(the "Indenture") under which they are to be issued is qualified in its 
entirety by reference to the Indenture which is filed as an exhibit to the 
CCL Form 10. 
    

   
General 
    

   The Notes will be senior subordinated obligations of CCL, will be 
guaranteed on a senior subordinated basis by CCL's present and future 
Restricted Subsidiaries (as defined) on a joint and several basis. The 
guarantees will automatically terminate if the related guarantees of the CCL 
Credit Facility are terminated. 

   
Stated Maturity and Interest 
    

   
   The Notes will mature on December 15, 2006. Interest on the Notes will be 
payable semiannually on June 15 and December 15 of each year, commencing June 
15, 1997. 
    

   
Redemption 
    

   The Notes will not be redeemable, at the option of CCL, prior to December 
15, 2001. On or after such date, the Notes will be redeemable, in whole or in 
part, at specified redemption prices. 

   
   CCL will be required to offer to purchase the Notes upon a Change of 
Control (as defined) and in the event of certain asset sales. 
    

   
Certain Covenants 
    

   
   The Indenture will impose certain limitations on the ability of CCL and 
its subsidiaries to, among other things, incur additional indebtedness, pay 
dividends or make certain other restricted payments, consummate certain asset 
sales, enter into certain transactions with affiliates, incur indebtedness 
that is subordinate in right of payment to any Senior Debt and senior in 
right of payment to the Notes, incur liens, enter into leases and sale and 
leaseback transactions, merge or consolidate with any other person or sell, 
assign, transfer, lease, convey or otherwise dispose of all or substantially 
all of the assets of the Company. In particular, the Indenture will limit 
CCL's ability to pay cash dividends on the CCL Common Stock based on 50% of 
CCL's net income, plus a credit for issuances of capital stock. 
    


Description of CCL Credit Facility 

   
   Prior to the Distributions, CCL expects to enter into a $450 million 
credit facility with a syndicate of financial institutions consisting of a 
$100 million revolving credit facility and a $350 million term loan facility 
(together, the "CCL Credit Facility"). 
    

   
   The proceeds from the CCL Credit Facility are expected to be used to 
partially finance the repayment of $350 million of intercompany debt owed to 
Corning. The revolving credit facility will mature in November 2002 and the 
term loan will mature in November 2003. The Distributions are conditioned on 
the closing by CCL of the CCL Credit Facility. 
    

   Depending on market conditions at the time of the CCL Notes Offering and 
the consummation of the CCL Credit Facility, the total combined debt amount, 
the interest rates, and the amounts of each of the CCL Credit Facility and 
the Notes may vary from that indicated herein. 

                                       99
<PAGE> 

                       LIABILITY AND INDEMNIFICATION OF 
                        DIRECTORS AND OFFICERS OF CCL 

Limitation on Liability of Directors 

   Pursuant to authority conferred by Section 102 of the DGCL, Paragraph 11 
of the CCL Certificate ("Paragraph 11") eliminates the personal liability of 
CCL's directors to CCL or its stockholders for monetary damages for breach of 
fiduciary duty, including without limitation, directors serving on committees 
of the CCL Board. Directors remain liable for (1) any breach of the duty of 
loyalty to CCL or its stockholders, (2) any act or omission not in good faith 
or which involves intentional misconduct or a knowing violation of law, (3) 
any violation of Section 174 of the DGCL, which proscribes the payment of 
dividends and stock purchases or redemptions under certain circumstances, and 
(4) any transaction from which directors derive an improper personal benefit. 

Indemnification and Insurance 

   In accordance with Section 145 of the DGCL, which provides for the 
indemnification of directors, officers and employees under certain 
circumstances, Paragraph 11 grants CCL's directors and officers a right to 
indemnification for all expenses, liabilities and losses relating to civil, 
criminal, administrative or investigative proceedings to which they are a 
party (1) by reason of the fact that they are or were directors or officers 
of CCL or (2) by reason of the fact that, while they are or were directors or 
officers of CCL, they are or were serving at the request of CCL as directors 
or officers of another corporation, partnership, joint venture, trust or 
enterprise. Paragraph 11 further provides for the mandatory advancement of 
expenses incurred by officers and directors in defending such proceedings in 
advance of their final disposition upon delivery to CCL by the indemnitee of 
an undertaking to repay all amounts so advanced if it is ultimately 
determined that such indemnitee is not entitled to be indemnified under 
Paragraph 11. CCL may not indemnify or make advance payments to any person in 
connection with proceedings initiated against CCL by such person without the 
authorization of the CCL Board. 

   In addition, Paragraph 11 provides that directors and officers therein 
described shall be indemnified to the fullest extent permitted by Section 145 
of DGCL, or any successor provisions or amendments thereunder. In the event 
that any such successor provisions or amendments provide indemnification 
rights broader than permitted prior thereto, Paragraph 11 allows such broader 
indemnification rights to apply retroactively with respect to any predating 
alleged action or inaction and also allows the indemnification to continue 
after an indemnitee has ceased to be a director or officer of CCL and to 
inure to the benefit of the indemnitee's heirs, executors and administrators. 

   Paragraph 11 further provides that the right to indemnification is not 
exclusive of any other right which any indemnitee may have or thereafter 
acquire under any statute, the CCL Certificate, any agreement or vote of 
stockholders or disinterested directors or otherwise, and allows CCL to 
indemnify and advance expenses to any person whom the corporation has the 
power to indemnify under the DGCL or otherwise. 

   Insofar as indemnification for liabilities arising under the Securities 
Act may be permitted for directors and officers and controlling persons 
pursuant to the foregoing provisions, CCL has been advised that in the 
opinion of the Commission such indemnification is against public policy as 
expressed in the Securities Act and is, therefore, unenforceable. 

   The CCL Certificate authorizes CCL to purchase insurance for directors and 
officers of CCL and persons who serve at the request of CCL as directors, 
officers, employees or agents of another corporation, partnership, joint 
venture, trust or enterprise, against any expense, liability or loss incurred 
in such capacity, whether or not CCL would have the power to indemnify such 
persons against such expense or liability under the DGCL. CCL intends to 
maintain insurance coverage of its officers and directors as well as 
insurance coverage to reimburse CCL for potential costs of its corporate 
indemnification of directors and officers. 

                                      100
<PAGE> 

   
                            AVAILABLE INFORMATION 
    

   
   CCL and Covance have filed with the Commission the CCL Form 10 and the 
Covance Form 10, respectively (together, the "Forms 10") under the Exchange 
Act with respect to the CCL Common Stock and Covance Common Stock, 
respectively, described herein. This Information Statement does not contain 
all of the information set forth in the Forms 10 and the respective exhibits 
thereto. For further information, reference is made to the CCL Form 10 and 
the Covance Form 10, including the exhibits thereto. When the Forms 10 become 
effective, CCL and Covance will be subject to the reporting requirements of 
the Exchange Act and, in accordance therewith, will file reports, proxy 
statements and other information with the Commission. Copies of the Forms 10, 
including the exhibits thereto, and the reports, proxy statements and other 
information filed by Corning, CCL and Covance with the Commission can be 
inspected and copies made at the public reference facilities of the 
Commission, 450 Fifth Street, N.W., Room 1024, Washington, D.C. 20549 and at 
the Commission's Regional Offices: 7 World Trade Center, 13th Floor, New 
York, NY 10048 and Citicorp Center, 500 West Madison Street, Suite 1400, 
Chicago, Illinois 60611. Copies of such material can be obtained at 
prescribed rates from the Public Reference Section of the Commission at 450 
Fifth Street, N.W., Room 1024, Washington, D.C. 20549. In addition, the 
Commission maintains a Web site that contains reports, proxy and information 
statements and other information regarding registrants that file 
electronically, such as CCL and Covance. The address of the Commission's Web 
site is http://www.sec.gov. Following the listing of the CCL Common Stock and 
Covance Common Stock on the NYSE, CCL and Covance will be required to file 
with that exchange copies of such reports, proxy statements and other 
information which then can be inspected at the offices of such exchange at 20 
Broad Street, New York, New York 10005. 
    

                                      162
<PAGE> 

                        INDEX TO FINANCIAL STATEMENTS 

<TABLE>
<CAPTION>
                                                                                                           Page 
                                                                                                         --------- 
<S>                                                                                                       <C>
FINANCIAL STATEMENTS OF CORNING CLINICAL LABORATORIES INC. 
Report of Price Waterhouse LLP--Independent Accountants                                                     F-2 
Report of Deloitte and Touch LLP--Independent Auditors                                                      F-3 
Report of Ernst & Young LLP--Independent Auditors                                                           F-4 
Report of Leverone and Company--Independent Auditors                                                        F-5 
Combined Financial Statements: 
 Combined Balance Sheets--December 31, 1995 and 1994                                                        F-6 
 Combined Statements of Operations--Years ended December 31, 1995, 1994 and 1993                            F-7 
 Combined Statements of Cash Flows--Years ended December 31, 1995, 1994 and 1993                            F-8 
 Combined Statements of Stockholder's Equity--Years ended December 31, 1995, 1994 and 1993                  F-9 
 Notes to Combined Financial Statements                                                                    F-10 
 Financial Statement Schedule II--Valuation Accounts and Reserves                                          F-21 
 Quarterly Operating Results (unaudited)                                                                   F-22 
Interim Combined Financial Statements (unaudited): 
 Combined Balance Sheets--September 30, 1996 and December 31, 1995                                         F-23 
 Combined Statements of Operations--Three and Nine Months ended September 30, 1996 
   and 1995                                                                                                F-24 
 Combined Statements of Cash Flows--Nine Months ended September 30, 1996 and 1995                          F-25 
 Notes to Interim Combined Financial Statements                                                            F-26 
</TABLE>

                                     F-1 
<PAGE> 

   
                      REPORT OF INDEPENDENT ACCOUNTANTS 
    

To the Boards of Directors and Stockholders of 
Corning Incorporated and Corning Clinical Laboratories Inc. 

   
   In our opinion, based upon our audits and the reports of other auditors, 
the accompanying combined balance sheets and the related combined statements 
of operations and of cash flows and of stockholder's equity appearing on 
pages F-6 through F-21 present fairly, in all material respects, the 
financial position of Corning Clinical Laboratories Inc. and the combined 
companies as discussed in Note 1 (collectively, the "Company"), a wholly- 
owned business of Corning Incorporated, at December 31, 1995 and 1994, and 
the results of their operations and their cash flows for each of the three 
years in the period ended December 31, 1995, in conformity with generally 
accepted accounting principles. These financial statements are the 
responsibility of the Company's management; our responsibility is to express 
an opinion on these financial statements based on our audits. We did not 
audit the 1993 financial statements of Maryland Medical Laboratory, Inc., 
Nichols Institute and Bioran Medical Laboratory, which were acquired by the 
Company in 1994 in separate transactions accounted for as poolings of 
interests and which collectively reflect total revenues of $438 million for 
the year ended December 31, 1993. Those statements were audited by other 
auditors whose reports thereon have been furnished to us, and our opinion 
expressed herein, insofar as it relates to the amounts included for Maryland 
Medical Laboratory, Inc., Nichols Institute and Bioran Medical Laboratory, is 
based solely on the reports of the other auditors. We conducted our audits of 
these statements in accordance with generally accepted auditing standards 
which 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, assessing 
the accounting principles used and significant estimates made by management, 
and evaluating the overall financial statement presentation. We believe that 
our audits and the reports of other auditors provide a reasonable basis for 
the opinion expressed above. 
    

   As discussed in Note 2 to the combined financial statements, in 1993 the 
Company adopted Statement of Financial Accounting Standards No. 109, 
"Accounting for Income Taxes." 

   
Price Waterhouse LLP 
New York, New York 
September 20, 1996, except for Note 13 
as to which the date is November 4, 1996 
    


                                     F-2 
<PAGE> 

                        REPORT OF INDEPENDENT AUDITORS 

To the Board of Directors and Stockholders of 
Nichols Institute: 

   We have audited the consolidated statements of operations, stockholders' 
equity and cash flows for the year ended December 31, 1993 of Nichols 
Institute and its subsidiaries (the Company) (not presented separately 
herein). These consolidated financial statements are the responsibility of 
the Company's management. Our responsibility is to express an opinion on 
these financial statements based on our audit. 

   We conducted our audit 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 audit provides a 
reasonable basis for our opinion. 

   In our opinion, such consolidated financial statements present fairly, in 
all material respects, the results of operations and cash flows of Nichols 
Institute and its subsidiaries for the year ended December 31, 1993, in 
conformity with generally accepted accounting principles. 

   As discussed in Note 11 to the consolidated financial statements, the 
Company has received a subpoena from the Office of the Inspector General of 
the Department of Health and Human Services (OIG) requesting documents in 
connection with an investigation and internal review concerning the possible 
submission of false or improper claims to the Medicare and Medicaid programs. 
No claim or charges have been made against the Company relating to this 
investigation. The ultimate outcome of this investigation cannot presently be 
determined. Accordingly, no provision for any loss that may result from this 
investigation has been made in the accompanying consolidated financial 
statements. 

   As discussed in Notes 1 and 3 to the consolidated financial statements, at 
December 31, 1993, the Company was not in compliance with certain covenants 
of its senior note agreements and the senior lenders have not waived those 
covenants. The senior note agreements provide that, as a result of failure to 
comply with the covenants, the note holders have the right to declare the 
entire unpaid balance immediately due and payable, and if that were to occur, 
the Company would not have the funds required to retire the debt unless 
alternative financing is obtained. Management's plans in regard to these 
matters are described in Notes 1 and 3. The note holders' right to declare 
the entire unpaid balance under the note agreements immediately due and 
payable raises substantial doubt about the Company's ability to continue as a 
going concern. The accompanying consolidated financial statements have been 
prepared assuming that the Company will continue as a going concern. The 
financial statements do not include any adjustments that might result from 
the outcome of this uncertainty, except for the classification of amounts due 
under the senior note agreements as current. 

Deloitte & Touche LLP 
Costa Mesa, California 
February 28, 1994 

                                     F-3 
<PAGE> 

                        REPORT OF INDEPENDENT AUDITORS 

Board of Directors 
Maryland Medical Laboratory, Inc. 

   We have audited the combined balance sheet of Maryland Medical Laboratory, 
Inc. and affiliates as of March 31, 1994, and the related combined statements 
of income, changes in equity and cash flows for the year then ended (not 
presented separately herein). These financial statements are the 
responsibility of the Company's management. Our responsibility is to express 
an opinion on these financial statements based on our audit. 

   We conducted our audit 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 audit provides a 
reasonable basis for our opinion. 

   In our opinion, the financial statements referred to above present fairly, 
in all material respects, the combined financial position of Maryland Medical 
Laboratory, Inc. and affiliates at March 31, 1994, and the combined results 
of their operations and their cash flows for the year then ended in 
conformity with generally accepted accounting principles. 

Ernst & Young LLP 
Baltimore, Maryland 
May 19, 1994 

                                     F-4 
<PAGE> 

                        REPORT OF INDEPENDENT AUDITORS 

To the Board of Directors 
Moran Research Labs 
415 Massachusetts Avenue 
Cambridge, MA  02139 

   We have audited the accompanying balance sheet of Moran Research Labs 
(d/b/a Bioran Medical Laboratory, a Massachusetts Business Trust) as of 
December 31, 1993, and the related statements of income, retained earnings, 
and cash flows for the year then ended. These financial statements are the 
responsibility of the Company's management. Our responsibility is to express 
an opinion on these financial statements based on our audit. 

   We conducted our audit 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 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 audit provides a reasonable basis 
for our opinion. 

   In our opinion, the financial statements referred to above present fairly, 
in all material respects, the financial position of Moran Research Labs 
(d/b/a Bioran Medical Laboratory, a Massachusetts Business Trust) at December 
31, 1993 and the results of its operations and its cash flows for the year 
then ended in conformity with generally accepted accounting principles. 

Leverone & Company 
Billerica, Massachusetts 
November 10, 1994 

                                     F-5 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                           COMBINED BALANCE SHEETS 
                          DECEMBER 31, 1995 AND 1994 
                                (in thousands) 

<TABLE>
<CAPTION>
                                                             1995          1994 
                                                        -------------  ------------- 
<S>                                                     <C>            <C>
ASSETS 
- ------------------------------------------------------- 
Current Assets: 
  Cash and cash equivalents                               $   36,446    $   38,719 
  Accounts receivable, net of allowance of $147,947 and 
   $74,829 for 1995 and 1994, respectively                   318,252       360,410 
  Inventories                                                 26,601        28,248 
  Deferred taxes on income                                    98,845        53,696 
  Prepaid expenses and other assets                           22,014        19,241 
                                                        -------------  ------------- 
   Total current assets                                      502,158       500,314 
PROPERTY, PLANT AND EQUIPMENT, NET                           296,116       287,562 
INTANGIBLE ASSETS, NET                                     1,030,633     1,053,194 
DEFERRED TAXES ON INCOME                                       6,062        19,593 
OTHER ASSETS                                                  18,416        22,000 
                                                        -------------  ------------- 
TOTAL ASSETS                                              $1,853,385    $1,882,663 
                                                        =============  ============= 
LIABILITIES AND STOCKHOLDER'S EQUITY 
- --------------------------------------------------------------------- 
CURRENT LIABILITIES: 
  Accounts payable and accrued expenses                   $  240,525    $  236,887 
  Current portion of long-term debt                           12,148        12,572 
  Income taxes payable                                        39,766        30,454 
  Due to Corning Incorporated and affiliates                   8,979         6,043 
                                                        -------------  ------------- 
   Total current liabilities                                 301,418       285,956 
Long-term debt (principally due to Corning 
  Incorporated)                                            1,195,566     1,153,054 
Other liabilities                                             60,600        56,841 
                                                        -------------  ------------- 
  Total liabilities                                        1,557,584     1,495,851 
                                                        -------------  ------------- 
Commitments and Contingencies 
Stockholder's Equity: 
 Contributed capital                                         297,823       297,823 
  Retained earnings (accumulated deficit)                     (3,118)       85,893 
  Cumulative translation adjustment                            2,325         3,096 
  Market valuation adjustment                                 (1,229)           -- 
                                                        -------------  ------------- 
   Total stockholder's equity                                295,801       386,812 
                                                        -------------  ------------- 
  TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY              $1,853,385    $1,882,663 
                                                        =============  ============= 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-6 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                      COMBINED STATEMENTS OF OPERATIONS 
             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993 
                                (in thousands) 

<TABLE>
<CAPTION>
                                                                1995          1994          1993 
                                                           ------------- -------------  ------------- 
<S>                                                        <C>           <C>            <C>
Net revenues                                                 $1,629,388    $1,633,699    $1,416,338 
Costs and expenses: 
 Cost of services                                               980,232       969,844       805,729 
 Selling, general and administrative                            523,271       411,939       363,579 
 Provision for restructuring and other special charges           50,560        79,814        99,600 
 Interest expense, net                                           82,016        63,295        41,898 
 Amortization of intangible assets                               44,656        42,588        28,421 
 Other, net                                                       6,221         3,464         6,423 
                                                           ------------- -------------  ------------- 
  Total                                                       1,686,956     1,570,944     1,345,650 
                                                           ------------- -------------  ------------- 
Income (loss) before taxes                                      (57,568)       62,755        70,688 
Income tax expense (benefit)                                     (5,516)       34,410        25,929 
                                                           ------------- -------------  ------------- 
Income (loss) before cumulative effect of change in 
  accounting principle                                          (52,052)       28,345        44,759 
Cumulative effect of change in accounting principle                  --            --       (10,562) 
                                                           ------------- -------------  ------------- 
Net income (loss)                                            $  (52,052)   $   28,345    $   34,197 
                                                           ============= =============  ============= 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-7 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                      COMBINED STATEMENTS OF CASH FLOWS 
             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993 
                                (in thousands) 

<TABLE>
<CAPTION>
                                                                         1995         1994         1993 
                                                                    ------------- ------------  ------------ 
<S>                                                                 <C>           <C>           <C>
Cash flows from operating activities: 
Net income (loss)                                                     $ (52,052)    $  28,345    $  34,197 
Adjustments to reconcile net income (loss) to net 
cash provided by operating activities: 
 Depreciation and amortization                                          101,513        89,517       66,479 
 Provision for doubtful accounts                                        152,590        59,480       47,240 
 Provision for restructuring and other special charges                   50,560        79,814       99,600 
 Deferred income tax provision                                          (32,384)       (4,742)     (23,841) 
 Cumulative effect of change in accounting principle                         --            --       10,562 
 Other, net                                                               8,303        14,600        1,765 
 Changes in operating assets and liabilities: 
  Accounts receivable                                                  (109,500)     (103,402)     (61,828) 
  Accounts payable and accrued expenses                                  14,604       (32,756)     (33,903) 
  Restructuring, integration and other special charges                  (57,768)      (88,093)     (46,917) 
  Due from/to Corning Incorporated and affiliates                         2,934        14,783       (2,581) 
  Other assets and liabilities, net                                       7,028       (19,583)       8,841 
                                                                    ------------- ------------  ------------ 
Net cash provided by operating activities                                85,828        37,963       99,614 
                                                                    ------------- ------------  ------------ 
Cash flows from investing activities: 
 Capital expenditures                                                   (74,045)      (93,354)     (65,317) 
 Proceeds from disposition of assets                                      2,880        55,762           -- 
 Acquisition of businesses, net of cash acquired                        (22,907)      (12,154)    (401,428) 
 Decrease (increase) in investments                                         985         3,560       (6,942) 
                                                                    ------------- ------------  ------------ 
Net cash used in investing activities                                   (93,087)      (46,186)    (473,687) 
                                                                    ------------- ------------  ------------ 
Cash flows from financing activities: 
 Proceeds from borrowings, primarily with Corning Incorporated           55,729       186,046      709,630 
 Repayment of long-term debt                                            (13,784)     (118,046)    (265,196) 
 Dividends paid                                                         (36,959)      (60,468)     (51,478) 
                                                                    ------------- ------------  ------------ 
Net cash provided by financing activities                                 4,986         7,532      392,956 
                                                                    ------------- ------------  ------------ 
Net change in cash and cash equivalents                                  (2,273)         (691)      18,883 
Cash and cash equivalents, beginning of year                             38,719        39,410       20,527 
                                                                    ------------- ------------  ------------ 
Cash and cash equivalents, end of year                                $  36,446     $  38,719    $  39,410 
                                                                    ============= ============  ============ 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-8 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                 COMBINED STATEMENTS OF STOCKHOLDER'S EQUITY 
             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993 
                                (in thousands) 

<TABLE>
<CAPTION>
                                                                     Cumulative       Market         Total 
                                       Contributed     Retained      Translation    Valuation    Stockholder's 
                                         Capital       Earnings      Adjustment     Adjustment       Equity 
                                     -------------- -------------- -------------- -------------- -------------- 
<S>                                  <C>            <C>            <C>            <C>            <C>
Balance, December 31, 1992              $ 261,499      $ 146,938       $   (288)     $              $ 408,149 
Net income                                               34,197                                       34,197 
Dividends to CLSI                                       (28,088)                                     (28,088) 
Dividends to S-Corporation 
  shareholders                                          (23,390)                                     (23,390) 
Equity of pooled entity                    4,150         (4,096)                                          54 
Translation adjustment                                                   4,587                         4,587 
                                     -------------- -------------- -------------- -------------- -------------- 
Balance, December 31, 1993               265,649        125,561          4,299                       395,509 
Net income                                               28,345                                       28,345 
Dividends to CLSI                                       (33,275)                                     (33,275) 
Dividends to S-Corporation 
  shareholders                                          (27,193)                                     (27,193) 
Dividends in-kind to S-Corporation 
  shareholders                                           (7,545)                                      (7,545) 
Capital contribution                      32,174                                                      32,174 
Translation adjustment                                                  (1,203)                       (1,203) 
                                     -------------- -------------- -------------- -------------- -------------- 
Balance, December 31, 1994               297,823         85,893          3,096                       386,812 
Net loss                                                (52,052)                                     (52,052) 
Dividends to CLSI                                       (36,959)                                     (36,959) 
Translation adjustment                                                    (771)                         (771) 
Market valuation adjustment                                                           (1,229)         (1,229) 
                                     -------------- -------------- -------------- -------------- -------------- 
Balance, December 31, 1995              $ 297,823      $ (3,118)       $ 2,325       $(1,229)       $ 295,801 
                                     ============== ============== ============== ============== ============== 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-9 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                    NOTES TO COMBINED FINANCIAL STATEMENTS 
              (dollars in thousands, unless otherwise indicated) 

1. BASIS OF PRESENTATION 

   
   Corning Clinical Laboratories Inc. and Corning Nichols Institute Inc. 
(collectively referred to as "CCL" or the "Company") are wholly-owned 
subsidiaries of Corning Life Sciences Inc. ("CLSI") which in turn is a 
wholly- owned subsidiary of Corning Incorporated ("Corning"). The Company is 
one of the largest clinical laboratory testing businesses in the United 
States. The accompanying financial statements present the carved-out results 
of operations, cash flows and financial position of Corning's clinical 
laboratory testing business. Covance Inc. (formerly Corning Pharmaceutical 
Services Inc.), a subsidiary of CCL, and its related entities ("Covance") as 
well as environmental testing services formerly provided by CCL are excluded. 
In 1994, Corning acquired three clinical laboratory testing businesses on the 
behalf of CCL in separate transactions accounted for as poolings of interests 
(see Note 3). Results presented for 1994 and 1993 include the results of CCL 
and the pooled entities on a combined basis. 
    

   

   In May 1996, Corning's Board of Directors approved a plan to distribute to
its shareholders on a pro rata basis all of the shares of CCL and Covance (the
"CCL and Covance Spin-Off Distributions"). The result of the plan will be the
creation of two independent, publicly-owned companies. As a result of the
Spin-Off Distributions, CCL will operate Corning's clinical laboratory testing
business as an independent public company and Covance will own and operate
Corning's contract research business as an independent public company. The
Spin-Off Distributions will be effected by the distribution of a dividend to
holders of Corning Common Stock of all of the outstanding CCL Common Stock,
followed immediately by the distribution of a dividend to the holders of CCL
Common Stock of all of the Covance Common Stock. Corning has submitted to the
Internal Revenue Service a request for a ruling that the Spin-Off Distributions
qualify as tax-free distributions under the Internal Revenue Code of 1986.
    


2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES 

  Principles of Consolidation 
   The combined financial statements include the accounts of all laboratory 
entities controlled by the Company. The equity method of accounting is used 
for investments in affiliates which are not Company controlled and in which 
the Company's interest is generally between 20 and 50 percent. All 
significant intercompany accounts and transactions are eliminated. 

   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 
reporting period. Actual results could differ from those estimates. 

   
  Revenue Recognition 
   The Company generally recognizes revenue as services are rendered upon 
completion of the testing process. Billings for services under third-party 
payor programs, including Medicare and Medicaid, are recorded as revenues net 
of allowances for differences between amounts billed and the estimated 
receipts under such programs. Adjustments to the estimated receipts, based on 
final settlement with the third-party payors, are recorded upon settlement. 
In 1995, 1994 and 1993, approximately 23%, 28% and 25%, respectively, of net 
revenues were generated by Medicare and Medicaid programs. 
    

  Concentrations 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. 

  Taxes on Income 
   The Company uses the asset and liability approach to account for income 
taxes. Under this method, deferred tax assets and liabilities are recognized 
for the expected future tax consequences of differences between the carrying 
amounts of assets and liabilities and their respective tax bases using 
enacted tax rates in effect for the year in which 

                                     F-10 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

the differences are expected to reverse. The effect on deferred tax assets 
and liabilities of a change in tax rates is recognized in income in the 
period when the change is enacted. In 1993 the Company adopted Statement of 
Financial Accounting Standards No. 109, "Accounting for Income Taxes" (SFAS 
109). The adoption of SFAS 109 resulted in a charge to net income of $10.6 
million, principally representing a reduction in the Company's deferred tax 
assets to reflect the then enacted statutory tax rate. 

  Cash and Cash Equivalents 
   Cash and cash equivalents include all highly-liquid investments with 
original maturities at the time acquired by the Company of three months or 
less, and consist principally of amounts temporarily invested in a U.S. 
government money market fund. 

   
  Inventories 
   Inventories, which consist principally of supplies, are valued at the 
lower of cost (first in, first out method) or market. 
    

  Property, Plant and Equipment 
   Property, plant and equipment are recorded at cost. Depreciation and 
amortization are provided on the straight- line method at rates adequate to 
allocate the cost of the applicable assets over their expected useful lives, 
which range from three to forty years. 

  Intangible Assets 
   Acquisition costs in excess of the fair value of net tangible assets 
acquired are capitalized and amortized over appropriate periods not exceeding 
forty years. Other intangible assets are recorded at cost and amortized over 
periods not exceeding fifteen years. 

   
  Investments 
   The Company accounts for investments in equity securities, which are 
included in other assets, in conformity with Statement of Financial 
Accounting Standards No. 115 (SFAS 115), "Accounting for Certain Investments 
in Debt and Equity Securities." SFAS 115 requires the use of fair value 
accounting for trading or available-for-sale securities. Unrealized losses 
for available-for-sale securities are recorded as a separate component within 
stockholder's equity. 
    

  Impairment Accounting 
   The Company adopted Statement of Financial Accounting Standards No. 121, 
"Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets 
to Be Disposed Of" (SFAS 121) in 1995. The Company reviews the recoverability 
of its long-lived assets, including related goodwill and intangible assets, 
when events or changes in circumstances occur that indicate that the carrying 
value of the asset may not be recoverable. Evaluation of possible impairment 
is based on the Company's ability to recover the asset from the expected 
future pre-tax cash flows (undiscounted and without interest charges) of the 
related operations. If the expected undiscounted pre-tax cash flows are less 
than the carrying value of such asset, an impairment loss is recognized for 
the difference between estimated fair value and carrying value. This 
assessment of impairment requires management to make estimates of expected 
future cash flows. It is at least reasonably possible that future events or 
circumstances could cause these estimates to change. 

   In addition, the carrying value of intangible assets has historically been 
subject to a separate evaluation based on estimating expected future 
undiscounted cash flows from operating activities. If these estimated cash 
flows are less than the carrying amount of the intangible assets, the Company 
would recognize an impairment loss in an amount necessary to write down the 
intangible assets to fair value. 

  Earnings Per Share 
   Earnings per share are computed by dividing net income by the weighted 
average number of common shares outstanding. Historical earnings per share 
data is not meaningful as the Company's historical capital structure is not 
comparable to periods subsequent to the CCL Spin-Off Distribution. 

                                     F-11 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

3. BUSINESS COMBINATIONS AND DIVESTITURES 

  Acquisitions 
   During 1995, the Company acquired several laboratories in separate 
transactions accounted for under the purchase method. The total cost of the 
acquired businesses aggregated approximately $23 million and was financed 
through borrowings from Corning. Intangible assets of approximately $21.6 
million resulted from the transactions and are being amortized over periods 
not to exceed forty years. 

   During 1994, Corning acquired three clinical laboratory testing companies 
on behalf of the Company in separate transactions accounted for as poolings 
of interests. In June 1994, Corning acquired the stock of Maryland Medical 
Laboratory, Inc. ("MML") in exchange for approximately 4.5 million shares of 
Corning common stock; in August 1994, Corning acquired the stock of Nichols 
Institute ("Nichols") in exchange for approximately 7.5 million shares of 
Corning common stock and reserved an additional 1.1 million shares for future 
issuance upon the exercise of stock options; and, in October 1994, Corning 
acquired the stock of Bioran Medical Laboratory ("Bioran") in exchange for 
approximately 6.0 million shares of Corning common stock. Results presented 
for 1994 and 1993 include the results of the Company, MML, Nichols and Bioran 
on a combined basis. 

   In 1994, the Company also acquired several other laboratories in separate 
transactions accounted for under the purchase method. The total cost of the 
acquired businesses aggregated approximately $26 million and was financed 
through the issuance of Corning stock and borrowings from Corning. Intangible 
assets of approximately $24 million resulted from these transactions and are 
being amortized over periods not to exceed forty years. 

   In the third quarter of 1993, Corning acquired on behalf of the Company 
the outstanding shares of common stock of Damon Corporation ("Damon"), a 
clinical-testing business, for $405 million, including acquisition costs, 
financed through borrowings from Corning. In addition, approximately $167 
million of Damon's indebtedness was refinanced. Goodwill of approximately 
$600 million resulted from the transaction and is being amortized over forty 
years. Reserves aggregating $79 million were established for the costs of 
closing Damon facilities as a result of the integration of Damon operations. 

   In the fourth quarter of 1993, the Company acquired the clinical-testing 
laboratories of Unilab Corporation ("Unilab") in Denver, Dallas and Phoenix 
in exchange for its ownership interest in Unilab operations, the assumption 
of approximately $70 million of Unilab debt, and the Company's investment in 
J.S. Pathology PLC. Goodwill of approximately $200 million resulted from this 
transaction and is being amortized over forty years. As a result of this 
transaction, the Company received a small equity investment in Unilab. The 
Company previously owned 43% of Unilab. 

   The operations of the businesses, subsequent to the dates they were 
acquired, are included in the combined financial statements. The pro forma 
effect of the 1995 acquisitions on periods prior to the acquisitions is not 
material. 

   In 1993, Corning also acquired and contributed to the Company DeYor 
Laboratory, Inc., in a transaction accounted for as a pooling of interests, 
by issuing 840,000 shares of Corning common stock. The Company's combined 
financial statements for periods prior to this acquisition have not been 
restated, since this acquisition was not material to the Company's financial 
position or the results of its operations for such periods. 

  Divestitures 
   In the second quarter of 1994, the Company sold the California clinical 
laboratory testing operations acquired in the Damon transaction to Physicians 
Clinical Laboratory, Inc. for cash proceeds of $51 million. 

4. TAXES ON INCOME 

   The Company is included in the consolidated Federal income tax return 
filed by Corning. CLSI and its subsidiaries, including the Company, have a 
tax sharing agreement with Corning, pursuant to which they are required to 
compute their provision for income taxes on a separate return basis and pay 
to Corning the separate 

                                     F-12 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

Federal income tax return liability so computed. 

   The components of the provision (benefit) for income taxes for 1995, 1994 
and 1993 are as follows: 

<TABLE>
<CAPTION>
                                      1995        1994       1993 
                                   -----------  -------------------- 
<S>                                <C>          <C>      <C>
Current: 
 Federal                            $  22,786   $31,598    $ 46,215 
 State and local                        3,556     7,019       2,815 
 Foreign                                  526       535         740 
Deferred (benefit): 
 Federal                              (28,109)   (1,339)    (23,818) 
 State and local                       (4,275)   (3,403)        (23) 
                                   -----------  -------------------- 
  Income tax expense (benefit)      $  (5,516)  $34,410    $ 25,929 
                                   ===========  ==================== 
</TABLE>

   Prior to acquisition by Corning, Bioran and certain MML operations were 
S-Corporations; accordingly, no federal provision for income taxes has been 
reflected relative to these operations. 

   A reconciliation of the Federal statutory rate to the Company's effective 
tax rate for 1995, 1994 and 1993 is as follows: 

<TABLE>
<CAPTION>
                                                                1995      1994       1993 
                                                              --------- --------- ---------- 
<S>                                                           <C>       <C>       <C>
Taxes at statutory rate                                        (35.0%)     35.0%      35.0% 
State and local income taxes, net of federal tax benefit        (0.8%)      3.8%       2.6% 
Income from partnership and S-Corporations not subject to 
  federal and state income tax                                   1.7%     (10.3%)    (11.1%) 
Goodwill                                                        17.6%      14.3%       4.8% 
Non-deductible items                                             6.0%       8.6%       3.4% 
Other, net                                                       0.9%       3.4%       2.0% 
                                                              --------- --------- ---------- 
 Effective tax rate                                             (9.6%)     54.8%      36.7% 
                                                              ========= ========= ========== 
</TABLE>

   The tax effects of temporary differences that give rise to significant 
portions of the net deferred tax assets at December 31, 1995 and 1994 are as 
follows: 

<TABLE>
<CAPTION>
                                                   1995         1994 
                                                ----------  ----------- 
<S>                                             <C>         <C>
Current deferred tax asset:                                 
 Accounts receivable reserve                     $ 48,584     $ 16,692 
 Liabilities not currently deductible              49,222       34,422 
 Other                                              1,039        2,582 
                                                ----------  ----------- 
  Current deferred tax asset                     $ 98,845     $ 53,696 
                                                ==========  =========== 
Non-current deferred tax asset (liability):                 
 Liabilities not currently deductible            $ 21,152     $ 33,572 
 Depreciation and amortization                    (15,090)     (13,979) 
                                                ----------  ----------- 
   Non-current deferred tax asset                $  6,062     $ 19,593 
                                                ==========  =========== 
</TABLE>                                                  

                                     F-13 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

   Income taxes payable at December 31, 1995 and 1994 consist of Federal 
income taxes payable of $34.2 million and $28.7 million, respectively, state 
income taxes payable of $5.0 million and $1.5 million, respectively, and 
foreign income taxes payable of $0.6 million and $0.3 million, respectively. 
The Company paid income taxes of $21.7 million, $58.5 million and $52.0 
million during 1995, 1994 and 1993, respectively. 

5. PROVISION FOR RESTRUCTURING AND OTHER SPECIAL CHARGES 

   In the second quarter of 1995, the Company recorded a provision for 
restructuring totaling $33.0 million primarily for workforce reduction 
programs and the costs of exiting a number of leased facilities. 
Additionally, in the first quarter of 1995, the Company recorded a special 
charge of $12.8 million for the settlement of claims related to inadvertent 
billing errors of certain laboratory tests that were not completely and/or 
successfully performed or reported due to insufficient samples and/or invalid 
results. Additionally, in the fourth quarter of 1995, the Company recorded a 
charge of $4.8 million related to claims by the Civil Division of the U.S. 
Department of Justice ("DOJ") of alleged billing errors related to a 
laboratory test performed by Bioran prior to its acquisition by the Company. 

   
   In the third quarter of 1994, the Company recorded a provision for 
restructuring and other special charges totaling $79.8 million which included 
$48.2 million of integration costs, $21.6 million of transaction expenses 
related to the Nichols, MML and Bioran acquisitions, and $10 million of 
settlement reserves primarily related to Nichols. The integration costs 
represent the expected costs for closing clinical laboratories in certain 
markets where duplicate Company, Nichols, MML or Bioran facilities existed at 
the time of the acquisitions. 
    

   In the third quarter of 1993, the Company recorded a provision for 
restructuring costs and other special charges totaling $99.6 million. The 
restructuring component of this special charge aggregated $56.6 million and 
consisted primarily of asset write-offs, facility related costs and costs for 
workforce reduction programs related principally to the integration of the 
Company's operations with those acquired in the Damon acquisition. 

   
   The special charge of $43 million consists of a $36.5 million charge to 
reflect the settlement and related legal expenses associated with a 
compromise agreement with the DOJ to settle claims brought on behalf of the 
Inspector General, U.S. Department of Health and Human Services and a $6.5 
million charge for related asserted and unasserted claims. The DOJ claims 
related to the marketing, sale, pricing and billing of certain blood-test 
series provided to Medicare patients. The DOJ settlement does not constitute 
an admission with respect to any issue arising from subsequent civil actions. 
    

   The following summarizes the Company's restructuring activity (in 
millions): 

<TABLE>
<CAPTION>
                                    1993 and 
                                      1994       Amounts     Balance at        1995       Amounts     Balance at 
                                 Restructuring   Utilized   December 31,  Restructuring   Utilized   December 31, 
                                   Provisions  Through 1994     1994        Provision     in 1995        1995 
                                  ------------ ------------ ------------  ------------- ------------  ------------ 
<S>                               <C>          <C>          <C>            <C>          <C>           <C>
Employee termination costs           $ 32.5       $14.8        $17.7          $23.4        $27.0        $14.1 
Write-off of fixed assets              35.6        19.1         16.5            3.7          9.2         11.0 
Costs of exiting leased                                                   
  facilities                           21.7         9.3         12.4            3.1          6.8          8.7 
Other                                  15.0        13.4          1.6            2.8           .5          3.9 
                                  ------------ ------------ ------------   ------------ ------------  ------------ 
 Total                               $104.8       $56.6        $48.2          $33.0        $43.5        $37.7 
                                  ============ ============ ============   ============ ============  ============ 
</TABLE>                                                                

   The substantial portion of the balance at December 31, 1995 is expected to 
be expended in 1996. 

   
   Employee termination costs included severance benefits related to 
approximately 3,300 employees (700, 2,000 and 600 in 1995, 1994 and 1993, 
respectively). The estimated number of employees to be terminated has been 
reduced to 2,355, all of which have been terminated or notified of their 
termination at December 31, 1995. Management expects that approximately 300 
terminations and the remaining business or facility exits will occur by the 
end of 1996. The decrease in the number of actual versus anticipated employee 
terminations is primarily attributable to higher than expected attrition. As 
a result of higher than expected average termination costs, management's 
estimate of total employee termination costs is unchanged. Certain severance 
and facility exit costs have payment terms extending beyond 1997. 
    


                                     F-14 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

6. PROPERTY, PLANT AND EQUIPMENT 

   Property, plant and equipment at December 31, 1995 and 1994 consist of the 
following: 

<TABLE>
<CAPTION>
                                                         1995         1994 
                                                     ------------  ------------ 
<S>                                                  <C>           <C>
Land                                                   $  18,568    $  18,969 
Buildings and improvements                               186,192      173,546 
Laboratory equipment, furniture and fixtures             286,326      247,200 
Leasehold improvements                                    39,078       30,050 
Construction-in-progress                                  19,490       33,508 
                                                     ------------  ------------ 
 Property and equipment, at cost                         549,654      503,273 
Less: accumulated depreciation and amortization         (253,538)    (215,711) 
                                                     ------------  ------------ 
 Property and equipment, net                           $ 296,116    $ 287,562 
                                                     ============  ============ 
</TABLE>

Depreciation and amortization expense aggregated $56.8 million, $46.9 million 
and $38.1 million for 1995, 1994 and 1993, respectively. 

7. INTANGIBLE ASSETS 

   Intangible assets at December 31, 1995 and 1994 consist of the following: 

<TABLE>
<CAPTION>
                                                   1995          1994 
                                               -------------  ------------- 
<S>                                            <C>            <C>
Goodwill                                        $1,056,073    $1,043,089 
Customer lists                                      84,558       100,428 
Other (principally non-compete covenants)           50,626        61,401 
                                               -------------  ------------- 
 Intangible assets, at cost                      1,191,257     1,204,918 
Less: accumulated amortization                    (160,624)     (151,724) 
                                               -------------  ------------- 
 Intangible assets, net                         $1,030,633    $1,053,194 
                                               =============  ============= 
</TABLE>

   Amortization expense aggregated $44.7 million, $42.6 million and $28.4 
million for 1995, 1994 and 1993, respectively. 

8. ACCOUNTS PAYABLE AND ACCRUED EXPENSES 

   Accounts payable and accrued expenses at December 31, 1995 and 1994 
consist of the following: 

<TABLE>
<CAPTION>
                                                              1995        1994 
                                                          ----------- ----------- 
<S>                                                       <C>         <C>
Accrued wages and benefits                                  $ 81,985   $  74,519 
Restructuring, integration and other special charges          61,878      69,812 
Accrued expenses                                              57,338      34,851 
Trade accounts payable                                        31,129      36,169 
Accrued acquisition commitments                                8,195      21,536 
                                                          ----------- ----------- 
 Accounts payable and accrued expenses                      $240,525    $236,887 
                                                          =========== =========== 
</TABLE>

                                     F-15 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

9. LONG-TERM DEBT 

   Long-term debt, exclusive of current maturities, at December 31, 1995 and 
1994, respectively, consists of the following: 

<TABLE>
<CAPTION>
                                                                     1995          1994 
                                                                 -------------  ------------ 
<S>                                                              <C>            <C>
Notes payable to Corning: 
 Revolving credit notes--interest at the London 
   Interbank offered rate ("LIBOR") plus 1/8% 
   to 1/4%, maturing 1997                                         $  605,636    $  551,982 
 Installment note with interest at 9%, maturing 2001                  90,000       100,000 
 Term note with interest at 6.24%, maturing 2003                     100,000       100,000 
 Term note with interest at 6.93%, maturing 2013                     100,000       100,000 
 Term note with interest at 7.17%, maturing 2004                     150,000       150,000 
 Term note with interest at 7.77%, maturing 2024                     100,000       100,000 
Note payable denominated in pounds Sterling, interest at the 
  London Interbank Sterling Rate minus 1%, due 2002                    8,049         8,516 
Mortgage note payable through 2011, interest at 9.25%                  6,138         6,355 
Capital lease obligations expiring through 2031                       32,518        32,538 
Other                                                                  3,225         3,663 
                                                                 -------------  ------------ 
 Total                                                            $1,195,566    $1,153,054 
                                                                 =============  ============ 
</TABLE>

   Current maturities on long-term debt totaled $12.1 million and $12.6 
million at December 31, 1995 and 1994, respectively. 

   Long-term debt, including capital leases, maturing in each of the years 
subsequent to December 31, 1996 is as follows: 

<TABLE>
<CAPTION>
<S>                                 <C>
 Fiscal year ending December 31, 
1997                                $  261,131 
1998                                    10,493 
1999                                    10,530 
2000                                    10,576 
2001 and thereafter                    902,836 
                                    ------------ 
Total long-term debt                $1,195,566 
                                    ============ 
</TABLE>

   Future minimum payments under capital leases and the present value thereof 
are as follows: 

<TABLE>
<CAPTION>
<S>                                                          <C>
 Fiscal year ending December 31, 
1997                                                          $  4,061 
1998                                                             3,846 
1999                                                             3,840 
2000                                                             3,948 
2001 and thereafter                                            116,102 
                                                             ----------- 
Total future minimum payments under capital leases             131,797 
Less amount representing interest                              (99,279) 
                                                             ----------- 
Present value of minimum payments under capital leases        $ 32,518 
                                                             =========== 
</TABLE>

                                     F-16 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

   The Company paid interest of $74.2 million, $60.2 million and $41.2 
million during 1995, 1994 and 1993, respectively. 

   Based on borrowing rates currently available to the Company for loans with 
similar terms and maturities, the fair value of loans payable to third 
parties (carrying amount of approximately $50.0 million) was approximately 
$62.0 million at December 31, 1995. 

10. EMPLOYEE RETIREMENT PLANS 

  Defined Benefit Plans 
   An acquired entity had a defined benefit pension plan which in 1990 was 
frozen as to the further accrual of benefits. At December 31, 1995 the 
present value of the projected benefit obligation using a discount rate of 
7.5% was $22.6 million and the fair value of the plan assets (publicly traded 
corporate debt and equity securities, government obligations and money market 
funds) was $17.4 million. The difference between the projected benefit 
obligation and the fair value of plan assets is included in other long-term 
liabilities in the accompanying combined balance sheet. 

  Defined Contribution Plans 
   The Company has several defined contribution plans covering substantially 
all of its full-time employees. Company contributions to these plans 
aggregated $18.5 million, $15.9 million and $7.3 million for 1995, 1994 and 
1993, respectively. 

11. RELATED PARTY TRANSACTIONS 

   The Company, in the ordinary course of business, conducts a number of 
transactions with Corning and its affiliates. The significant transactions 
occurring during the years ended December 31, 1995, 1994 and 1993 are as 
follows: 

<TABLE>
<CAPTION>
                                       1995       1994       1993 
                                     ---------  ------------------- 
<S>                                  <C>        <C>      <C>
Interest expense on borrowings       $78,930    $55,835    $28,400 
Purchase of laboratory supplies       11,261     11,607      7,338 
Corporate fees                         2,800      2,800      2,450 
</TABLE>

   Certain executives of the Company are included in various stock 
compensation programs of Corning. Expenses related to these programs have 
been included in the Company's combined financial statements. 

   In 1994, Corning contributed capital of $25.2 million through the 
reduction of revolving credit notes and former S-Corporation shareholders 
contributed capital of a building approximating $4.4 million. 

12. COMMITMENTS AND CONTINGENCIES 

   Minimum rental commitments under noncancellable operating leases, 
primarily real estate, in effect at December 31, 1995 are as follows: 

<TABLE>
<CAPTION>
<S>                           <C>
 Year ending December 31, 
1996                            $ 40,459 
1997                              30,481 
1998                              20,527 
1999                              14,877 
2000                              12,532 
2001 and thereafter               65,920 
                              ---------- 
Net minimum lease payments      $184,796 
                              ========== 
</TABLE>

                                     F-17 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

   Operating lease rental expense for 1995, 1994 and 1993 aggregated $46.9 
million, $49.4 million and $46.9 million, respectively. 

   
   The Company is self-insured for substantially all casualty losses and 
maintains supplemental coverage on a claims made basis. The basis for the 
insurance reserve at December 31, 1995 and 1994 is the actuarially determined 
projected losses for each program (within the self-insured retention) based 
upon the Company's loss experience. 
    

   
   The Company has entered into several settlement agreements with various 
governmental and private payors during recent years. At present, government 
investigations of certain practices by clinical laboratories acquired in 
recent years are ongoing. In addition, certain payors are reviewing their 
reimbursement practices for laboratory tests. The results of these 
investigations and reviews may result in additional settlement payments or 
reductions in reimbursements for certain tests. The recorded reserves of 
approximately $37.0 million are included in accrued liabilities and represent 
management's best estimate at December 31, 1995. Based on information then 
available to CCL, management did not believe that the exposure to claims in 
excess of recorded reserves would be material (see Note 13). 
    

   
13. SUBSEQUENT EVENTS 
    

   
   As disclosed in Note 12, federal government investigations of certain 
practices by clinical laboratories acquired in recent years are ongoing. In 
the second quarter of 1996, the DOJ notified the Company that it has taken 
issue with certain payments received by Damon from federally funded 
healthcare programs prior to its acquisition by the Company. As a result, in 
the second quarter 1996, the Company increased its reserves by $46 million to 
equal management's estimate, at that time, of the low end of the range of 
potential amounts which could be required to satisfy claims related to the 
Damon and other related and similar investigations. 
    

   
   During the third quarter 1996, CCL management met with the government 
several times to evaluate the substance of the government's allegations. As a 
result of these discussions, in October 1996, CCL management, on behalf of 
its Damon subsidiary, reached a settlement agreement with the DOJ which 
caused CCL to pay $119 million to the government. This settlement concludes 
all federal and Medicaid claims relating to the billing by Damon of certain 
blood tests to Medicare and Medicaid patients and other matters relating to 
Damon being investigated by the DOJ. Additionally, the Company entered into a 
separate settlement agreement with the DOJ totaling $6.9 million related to 
billings of hematology indices provided with hematology test results. This 
claim will also be paid during the fourth quarter of 1996. 
    

   
   As a result of these settlement agreements, CCL management has reassessed 
the level of reserves recorded for other asserted and unasserted claims 
related to the Damon and other similar government investigations, including 
the investigation of billing practices by Nichols prior to its acquisition by 
the Company in 1994. The Company recorded a charge totaling $142 million in 
the third quarter 1996 to establish additional reserves to provide for the 
above settlement agreements and management's best estimate of potential 
amounts which could be required to satisfy the remaining claims. Based on 
information currently available to CCL, management does not believe that the 
exposure to claims in excess of recorded reserves is material. At September 
30, 1996, recorded reserves approximated $215 million. 
    


                                     F-18 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

   
   In October 1996, Corning contributed $119 million to CCL's capital to fund 
the Damon settlement. Additionally, Corning has agreed to fund any additional 
settlements prior to the CCL Spin-Off Distribution and to indemnify the 
Company, on an after-tax basis, for the settlement of the Nichols' and 
certain other claims pending at the Distribution Date (see Note 14). 
Coincident with the CCL Spin-Off Distribution, the Company will record a 
receivable and a contribution of capital from Corning currently estimated at 
$25 million which is equal to management's best estimate of potential amounts 
which could be required to satisfy the remaining indemnified claims on an 
after-tax basis. 
    

   
   Although management believes that established reserves for both 
indemnified and non-indemnified claims are sufficient, it is possible that 
additional information may become available which may cause the final 
resolution of these matters to exceed established reserves by an amount which 
could be material to the Company's results of operations and, for 
non-indemnified claims, the Company's cash flows in the period in which such 
claims are settled. The Company does not believe that these issues will have 
a material adverse effect on the Company's overall financial condition. 
    

   
   In addition to the $142 million special charge discussed above, in the 
third quarter of 1996, the Company recorded a special charge of $13.7 million 
as a result of its decision to abandon the development of a billing system 
which had been intended as its standard company-wide billing system. 
Management now plans to standardize billing systems using a system already 
implemented in seven of its sites. 
    


14. SPIN-OFF DISTRIBUTION (unaudited) 

   Coincident with the CCL Spin-Off Distribution, the Company plans to record 
a non-recurring charge of approximately $20 million ($13 million after tax) 
associated with the CCL Spin-Off Distribution. The largest component of the 
charge will be the cost of establishing an employee stock ownership plan ($11 
million). The remainder of the charge will consist principally of the costs 
for advisors and other fees associated with establishing the Company as a 
separate publicly-traded entity. The amount of the charge is subject to 
change based on the price of the CCL stock on the Distribution Date. 

   
   Prior to the CCL Spin-Off Distribution, the Company will borrow 
approximately $500 million in long-term debt to repay Corning for certain 
intercompany borrowings. The debt is assumed to consist of $350 million of 
bank borrowings and $150 million of publicly-traded high-yield notes. Corning 
will contribute the remaining debt to the Company's equity prior to the CCL 
Spin-Off Distribution. The credit facility governing the bank borrowings and 
the indenture governing the notes will contain various customary affirmative 
and negative covenants, including the maintenance of certain financial ratios 
and tests. The credit facility prohibits the Company from paying cash 
dividends on the CCL common stock. Further, the indenture will restrict the 
Company's ability to pay cash dividends based on a percentage of the 
Company's cash flow. 
    

   
   In conjunction with the CCL Spin-Off Distribution, Corning and the Company 
will enter into an indemnification agreement whereby Corning agrees to 
indemnify CCL, on an after-tax basis, for any losses arising out of any 
federal, criminal, civil or administrative investigations or claims that are 
pending as of the Distribution Date to the extent that such investigations or 
claims arise out of or are related to alleged violations of federal laws by 
reason of CCL, its affiliates, officers or directors billing any federal 
program or agency for services rendered to beneficiaries of such program or 
agency. 
    

   
   Corning, CCL and Covance will enter into tax indemnification agreements 
that will prohibit CCL and Covance for a period of two years after the 
Spin-Off Distributions from taking certain actions that might jeopardize the 
favorable tax treatment of the Distributions under section 355 of the 
Internal Revenue Code of 1986, as amended and will provide Corning and CCL 
with certain rights of indemnification against CCL and Covance. The tax 
indemnification agreements will also require CCL and Covance to take such 
actions as Corning may request to preserve the favorable tax treatment 
provided for in any rulings obtained from the Internal Revenue Service in 
respect of the Distributions. 
    

   
   Corning, CCL and Covance will also enter into a tax sharing agreement 
which will allocate among Corning, CCL and Covance responsibility for 
federal, state and local taxes relating to taxable periods before and after 
the Spin-Off Distributions and provide for computing and apportioning tax 
liabilities and tax benefits for such periods among the parties. 
    


                                     F-19 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (dollars in thousands, unless otherwise indicated) 

15. PLANNED CHANGE IN ACCOUNTING POLICY (unaudited) 

   Coincident with the CCL Spin-Off Distribution, CCL management will adopt a 
new accounting policy for evaluating the recoverability of intangible assets 
and measuring possible impairment under Statement of the Accounting 
Principles Board No. 17. Most of CCL's intangible assets resulted from 
purchase business combinations in 1993. Significant changes in the clinical 
laboratory and health care industries subsequent to 1993, including increased 
government regulation and movement from traditional fee-for-service care to 
managed cost health care, have caused the fair value of CCL's intangible 
assets to be significantly less than carrying value. CCL management believes 
that a valuation of intangible assets based on the amount for which each 
regional laboratory could be sold in an arms-length transaction is preferable 
to using projected undiscounted pre-tax cash flows. CCL believes fair value 
is a better indicator of the extent to which the intangible assets may be 
recoverable and therefore, may be impaired. This change in method of 
evaluating the recoverability of intangible assets will result in CCL 
recording a charge of between $400 million and $450 million coincident with 
the CCL Spin-Off Distribution to reflect the other than temporary impairment 
of intangible assets. This will result in a reduction of amortization expense 
of approximately $10 million to $11.3 million annually and $2.5 million to 
$2.8 million quarterly. 

   The fair value method will be applied to each of CCL's regional 
laboratories. In developing management's estimate of fair value, CCL 
management will consider, among other things, (i) the financial projections 
of each regional laboratory, (ii) the future of each regional laboratory, 
including growth opportunities, managed care concentration and planned 
actions, (iii) publicly-available information regarding comparable 
publicly-traded companies in the industry, (iv) comparable sales prices, if 
available, and (v) other information deemed relevant. 

                                     F-20 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
                 Schedule II--Valuation Accounts and Reserves 
                            (amounts in thousands) 

<TABLE>
<CAPTION>
                                     Balance at                Net Deductions   Balance at 
Year ended December 31, 1995            1-1-95     Additions      and Other       12-31-95 
                                     ------------ ------------ ----------------  ------------ 
<S>                                    <C>          <C>            <C>            <C>      
Doubtful accounts and allowances       $ 74,829     $152,590       $ 79,472       $147,947 
</TABLE>

<TABLE>
<CAPTION>
                                    Balance at                Net Deductions   Balance at 
Year ended December 31, 1994           1-1-94     Additions      and Other       12-31-94 
                                    ------------ ------------ ----------------  ------------ 
<S>                                   <C>          <C>            <C>             <C>     
Doubtful accounts and allowances      $71,991      $59,480        $56,642         $74,829 
</TABLE>

<TABLE>
<CAPTION>
                                     Balance at                Net Deductions   Balance at 
Year ended December 31, 1993            1-1-93     Additions      and Other       12-31-93 
                                     ------------ ------------ ----------------  ------------ 
<S>                                    <C>          <C>            <C>             <C>      
Doubtful accounts and allowances       $ 65,859     $ 47,240       $ 41,108        $ 71,991 
</TABLE>

                                     F-21 
<PAGE> 

                   QUARTERLY OPERATING RESULTS (unaudited) 

<TABLE>
<CAPTION>
                                   First         Second           Third          Fourth          Total 
                                  Quarter        Quarter         Quarter         Quarter          Year 
                              ------------- ---------------  --------------- ---------------  ------------- 
<S>                             <C>             <C>            <C>              <C>            <C>
1996 
- ----
Net revenues                    $401,395        $ 424,543      $  405,352 
Gross profit                     154,277          158,242         149,962 
Loss before taxes                 (1,642)         (37,518) (1)   (162,989)(1) 
Net loss                          (1,511)         (37,922)       (119,436) 

1995 
- ----
Net revenues                    $417,662        $ 421,853      $  399,959       $ 389,914      $1,629,388 
Gross profit                     168,606          175,793         159,091         145,666         649,156 
Income (loss) before taxes        19,827(1)        (5,088)(1)     (56,405)(2)     (15,902)(1)     (57,568) 
Net income (loss)                  4,423           (3,852)        (38,595)        (14,028)        (52,052) 

1994 
- ----
Net revenues                    $399,063        $ 422,942      $  408,478       $ 403,216      $1,633,699 
Gross profit                     159,050          182,050         163,391         159,364         663,855 
Income (loss) before taxes        40,624           45,109         (51,250)(1)      28,272          62,755 
Net income (loss)                 24,152           24,148         (36,535)         16,580          28,345 
</TABLE>

   
(1) Includes impact of restructuring and other special charges of $46.0 
    million, $155.7 million, $12.8 million, $33.0 million, $4.8 million and 
    $79.8 million in second quarter 1996, third quarter 1996, first quarter 
    1995, second quarter 1995, fourth quarter 1995 and third quarter 1994, 
    respectively, which are discussed in Notes 5 and 13 to the CCL Combined 
    Financial Statements. 
(2) Includes a $62.0 million charge to increase the reserve for doubtful 
    accounts and allowances resulting from billing systems implementation and 
    integration problems at certain laboratories and increased regulatory 
    requirements. 
    


                                     F-22 
<PAGE> 

   
                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                           COMBINED BALANCE SHEETS 
                   SEPTEMBER 30, 1996 AND DECEMBER 31, 1995 
                                (in thousands) 
    


<TABLE>
<CAPTION>
                                                              September 30,   December 31, 
                                                                   1996           1995 
                                                              --------------  -------------- 
                                                               (unaudited) 
<S>                                                            <C>             <C>
ASSETS 
- ----
Current Assets: 
 Cash and cash equivalents                                      $   48,319     $   36,446 
 Accounts receivable, net of allowance of $116,996 and 
   $147,947 for September 30, 1996 and December 31, 1995, 
   respectively                                                    323,171        318,252 
 Inventories                                                        25,559         26,601 
 Deferred taxes on income                                          126,906         98,845 
 Prepaid expenses and other assets                                  25,217         22,014 
                                                              --------------  -------------- 
  Total current assets                                             549,172        502,158 
Property and equipment, net                                        293,490        296,116 
Intangible assets, net                                           1,001,500      1,030,633 
Other assets                                                        42,216         24,478 
                                                              --------------  -------------- 
TOTAL ASSETS                                                    $1,886,378     $1,853,385 
                                                              ==============  ============== 

LIABILITIES AND STOCKHOLDER'S EQUITY 
 ------------------------------------------------------------ 
Current Liabilities: 
 Accounts payable and accrued expenses                          $  374,058     $  240,525 
 Current portion of long-term debt                                  11,885         12,148 
 Income taxes payable                                               34,212         39,766 
 Due to Corning Incorporated and affiliates                         14,299          8,979 
                                                              --------------  -------------- 
  Total current liabilities                                        434,454        301,418 
Long-term debt (principally due to Corning Incorporated)         1,219,900      1,195,566 
Other liabilities                                                   99,354         60,600 
                                                              --------------  -------------- 
 Total liabilities                                               1,753,708      1,557,584 
                                                              ==============  ============== 

Stockholder's Equity: 
 Contributed capital                                               297,823        297,823 
 Accumulated deficit                                              (163,158)        (3,118) 
 Cumulative translation adjustment                                   1,801          2,325 
 Market valuation adjustment                                        (3,796)        (1,229) 
                                                              --------------  -------------- 
  Total stockholder's equity                                       132,670        295,801 
                                                              --------------  -------------- 
TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY                      $1,886,378     $1,853,385 
                                                              ==============  ============== 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-23 
<PAGE> 

   
                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                      COMBINED STATEMENTS OF OPERATIONS 
       FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 1996 AND 1995 
                                (in thousands) 
                                 (unaudited) 
    


<TABLE>
<CAPTION>
                                                  Three Months Ended             Nine Months Ended 
                                             September 30,  September 30,  September 30,   September 30, 
                                                  1996           1995           1996           1995 
                                             -------------- -------------- --------------  -------------- 
<S>                                          <C>            <C>            <C>             <C>
Net revenues                                   $ 405,352       $399,959      $1,231,290     $1,239,474 
Costs and expenses: 
 Cost of services                                255,390        240,868         768,809        735,984 
 Selling, general and administrative             125,190        181,346         371,439        399,635 
 Provision for restructuring and other 
  special charges                                155,730             --         201,730         45,885 
 Interest expense, net                            19,866         20,927          59,887         61,529 
 Amortization of intangible assets                10,328         11,293          31,772         33,678 
 Other, net                                        1,837          1,930            (198)         4,429 
                                             -------------- -------------- --------------  -------------- 
  Total                                          568,341        456,364       1,433,439      1,281,140 
                                             -------------- -------------- --------------  -------------- 
Loss before taxes                               (162,989)       (56,405)       (202,149)       (41,666) 
Income tax benefit                               (43,553)       (17,810)        (43,280)        (3,642) 
                                             -------------- -------------- --------------  -------------- 
Net loss                                       $(119,436)      $(38,595)     $ (158,869)    $  (38,024) 
                                             ============== ============== ==============  ============== 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-24 
<PAGE> 

   
                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                      COMBINED STATEMENTS OF CASH FLOWS 
            FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1996 AND 1995 
                                (in thousands) 
                                 (unaudited) 
    


<TABLE>
<CAPTION>
                                                                 1996          1995 
                                                             -------------  ------------- 
<S>                                                          <C>            <C>
Cash flows from operating activities: 
Net loss                                                       $(158,869)    $ (38,024) 
Adjustments to reconcile net loss to net cash provided by 
operating activities: 
 Depreciation and amortization                                    75,232        76,036 
 Provision for doubtful accounts                                  81,891       127,297 
 Provision for restructuring and other special charges           201,730        45,885 
 Deferred income tax provision                                   (31,612)      (39,403) 
 Other, net                                                         (753)        4,984 
 Changes in operating assets and liabilities: 
  Accounts receivable                                            (87,339)     (112,110) 
  Accounts payable and accrued expenses                            3,355        18,732 
  Restructuring, integration and other special charges           (19,863)      (49,836) 
  Due from/to Corning Incorporated and affiliates                  5,320         4,572 
  Changes in other assets and liabilities                        (27,155)       15,656 
                                                             -------------  ------------- 
Net cash provided by operating activities                         41,937        53,789 
                                                             -------------  ------------- 
Cash flows from investing activities: 
 Capital expenditures                                            (58,802)      (56,062) 
 Acquisition of businesses, net of cash acquired                      --       (22,907) 
 (Increase) decrease in investments                               (7,580)        1,058 
 Proceeds from sale of assets                                     13,285            -- 
                                                             -------------  ------------- 
Net cash used in investing activities                            (53,097)      (77,911) 
                                                             -------------  ------------- 
Cash flows from financing activities: 
 Proceeds from borrowings, primarily with Corning 
   Incorporated                                                   59,090        63,795 
 Repayment of long-term debt                                     (34,885)       (3,766) 
 Dividends paid                                                   (1,172)      (27,718) 
                                                             -------------  ------------- 
Net cash provided by financing activities                         23,033        32,311 
                                                             -------------  ------------- 
Net change in cash and cash equivalents                           11,873         8,189 
Cash and cash equivalents, beginning of year                      36,446        38,719 
                                                             -------------  ------------- 
Cash and cash equivalents, end of period                       $  48,319     $  46,908 
                                                             =============  ============= 
</TABLE>

The accompanying notes are an integral part of these statements. 

                                     F-25 
<PAGE> 
                     CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
                NOTES TO INTERIM COMBINED FINANCIAL STATEMENTS 
                                 (unaudited) 

1. BASIS OF PRESENTATION 

   
   Corning Clinical Laboratories Inc. and Corning Nichols Institute Inc. 
(collectively referred to as "CCL" or the "Company") are wholly-owned 
subsidiaries of Corning Life Sciences Inc. ("CLSI") which in turn is a 
wholly-owned subsidiary of Corning Incorporated ("Corning"). The Company is 
one of the largest clinical laboratory testing businesses in the United 
States. These financial statements present the carved-out results of 
operations, cash flows and financial position of Corning's clinical 
laboratory testing business. Covance Inc. (formerly Corning Pharmaceutical 
Services Inc.), a subsidiary of CCL, and its related entities ("Covance") as 
well as environmental testing services formerly provided by CCL are excluded. 
    

   
   In May 1996, Corning's Board of Directors approved a plan to distribute to
its shareholders on a pro rata basis all of the shares of CCL and Covance (the
"CCL and Covance Spin-Off Distributions"). The result of the plan will be the
creation of two independent, publicly-owned companies. As a result of the
Spin-Off Distributions, CCL will operate Corning's clinical laboratory testing
business as an independent public company and Covance will own and operate
Corning's contract research business as an independent public company. The
Spin-Off Distributions will be effected by the distribution of a dividend to
holders of Corning Common Stock of all of the outstanding CCL Common Stock,
followed immediately by the distribution of a dividend to the holders of CCL
Common Stock of all of the Covance Common Stock. Corning has submitted to the
Internal Revenue Service a request for a ruling that the Spin-Off Distributions
qualify as tax-free distributions under the Internal Revenue Code of 1986.
    

   
   The interim combined financial statements reflect all adjustments which, 
in the opinion of management, are necessary for a fair statement of the 
results of operations for the periods presented. All such adjustments are of 
a normal recurring nature. The interim combined financial statements have 
been compiled without audit and are subject to year-end adjustments. These 
interim combined financial statements should be read in conjunction with the 
historical combined financial statements of CCL for the years ended December 
31, 1995, 1994 and 1993 included elsewhere herein. 
    

   
2. COMMITMENTS AND CONTINGENCIES 
    

   
   As disclosed in the Company's 1995 combined financial statements, federal 
government investigations of certain practices by clinical laboratories 
acquired in recent years are ongoing. In the second quarter of 1996, the U.S. 
Department of Justice ("DOJ") notified the Company that it has taken issue 
with certain payments received by Damon Corporation ("Damon") from federally 
funded healthcare programs prior to its acquisition by the Company. As a 
result, in the second quarter 1996, the Company increased its reserves by $46 
million to equal management's estimate, at that time, of the low end of the 
range of potential amounts which could be required to satisfy claims related 
to the Damon and other related and similar investigations. 
    

   
   During the third quarter 1996, CCL management met with the government 
several times to evaluate the substance of the government's allegations. As a 
result of these discussions, in October 1996 CCL management, on behalf of its 
Damon subsidiary, reached a settlement agreement with the DOJ which caused 
CCL to pay $119 million to the government. This settlement concludes all 
federal and Medicaid claims relating to the billing by Damon of certain blood 
tests to Medicare and Medicaid patients and other matters relating to Damon 
being investigated by the DOJ. Additionally, the Company entered into a 
separate settlement agreement with the DOJ totaling $6.9 million related to 
billings of hematology indices provided with hematology test results. This 
claim will also be paid during the fourth quarter of 1996. Based on 
information currently available to CCL, management does not believe that the 
exposure to claims in excess of recorded reserves is material. At September 
30, 1996, recorded reserves approximated $215 million. 
    

   
   As a result of these settlement agreements, CCL management has reassessed 
the level of reserves recorded for other asserted and unasserted claims 
related to the Damon and other similar government investigations, including 
the investigation of billing practices by Nichols Institute ("Nichols") prior 
to its acquisition by the Company in 1994. The Company recorded a charge 
totaling $142 million in the third quarter 1996 to establish additional 
reserves to provide for the above settlement agreements and management's best 
estimate of potential amounts which could be required to satisfy the 
remaining claims. 
    

   
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<PAGE> 
    

   
                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
          NOTES TO INTERIM COMBINED FINANCIAL STATEMENTS (Continued) 
                                 (unaudited) 
    

   
   In October 1996, Corning contributed $119 million to CCL's capital to fund 
the Damon settlement. Additionally, Corning has agreed to fund any additional 
settlements prior to the CCL Spin-Off Distribution and to indemnify the 
Company, on an after-tax basis, for the settlement of the Nichols' and 
certain other claims pending at the Distribution Date (see Note 5). 
Coincident with the CCL Spin-Off Distribution, the Company will record a 
receivable and a contribution of capital from Corning currently estimated at 
$25 million which is equal to management's best estimate of potential amounts 
which could be required to satisfy the remaining indemnified claims on an 
after-tax basis. 
    

   
   Although management believes that established reserves for both 
indemnified and non-indemnified claims should be sufficient, it is possible 
that additional information may become available which may cause the final 
resolution of these matters to be in excess of established reserves by an 
amount which could be material to the Company's results of operations and, 
for non-indemnified claims, the Company's cash flow in the period in which 
such claims are settled. The Company does not believe that these issues will 
have a material adverse impact on the Company's overall financial condition. 
    

   
3. PROVISION FOR RESTRUCTURING AND OTHER SPECIAL CHARGES 
    

   
   In addition to the $142 million special charge discussed in Note 2, in the 
third quarter of 1996, the Company recorded a special charge of $13.7 million 
as a result of its decision to abandon the development of a billing system 
which had been intended as its standard company-wide billing system. 
Management now plans to standardize billing systems using a system already 
implemented in seven of its sites. 
    

   
4. RESTRUCTURING RESERVES 
    

   
   As described in Note 5 to the CCL Combined Financial statements, CCL has 
recorded charges for restructuring plans in previous years. Reserves relating 
to these programs totaled approximately $37.7 million and $23.5 million at 
December 31, 1995 and September 30, 1996, respectively. Management believes 
that the costs of the restructuring plans will be financed through cash from 
operations and does not anticipate any significant impact on its liquidity as 
a result of the restructuring plans. 
    

   
5. SPIN-OFF DISTRIBUTION 
    

   Coincident with the CCL Spin-Off Distribution, the Company plans to record 
a non-recurring charge of approximately $20 million ($13 million after tax) 
associated with the CCL Spin-Off Distribution. The largest component of the 
charge will be the cost of establishing an employee stock ownership plan ($11 
million). The remainder of the charge will consist principally of the costs 
for advisors and other fees associated with establishing the Company as a 
separate publicly-traded entity. The amount of the charge is subject to 
change based on the price of the CCL stock on the Distribution Date. 

   
   Prior to the CCL Spin-Off Distribution, the Company will borrow 
approximately $500 million in long-term debt to repay Corning for certain 
intercompany borrowings. The debt is assumed to consist of $350 million of 
bank borrowings and $150 million of publicly-traded high-yield notes. Corning 
will contribute the remaining debt to the Company's equity prior to the CCL 
Spin-Off Distribution. The credit facility governing the bank borrowings and 
the indenture governing the notes will contain various customary affirmative 
and negative covenants , including the maintenance of certain financial 
ratios and tests. The credit facility prohibits the Company from paying cash 
dividends on the CCL common stock. Further, the indenture will restrict the 
Company's ability to pay cash dividends based on a percentage of the 
Company's cash flow. 
    


                                     F-27 
<PAGE> 

                      CORNING CLINICAL LABORATORIES INC. 
              (a wholly-owned business of Corning Incorporated) 
          NOTES TO INTERIM COMBINED FINANCIAL STATEMENTS (Continued) 
                                 (unaudited) 

   
   In conjunction with the CCL Spin-Off Distribution, Corning and the Company 
will enter into an indemnification agreement whereby Corning agrees to 
indemnify CCL, on an after-tax basis, for any losses arising out of any 
federal, criminal, civil or administrative investigations or claims that are 
pending as of the Distribution Date to the extent that such investigations or 
claims arise out of or are related to alleged violations of federal laws by 
reason of CCL, its affiliates, officers or directors billing any federal 
program or agency for services rendered to beneficiaries of such program or 
agency. 
    

   
   Corning, CCL and Covance will enter into tax indemnification agreements 
that will prohibit CCL and Covance for a period of two years after the 
Spin-Off Distributions from taking certain actions that might jeopardize the 
favorable tax treatment of the Distributions under section 355 of the 
Internal Revenue Code of 1986, as amended and will provide Corning and CCL 
with certain rights of indemnification against CCL and Covance. The tax 
indemnification agreements will also require CCL and Covance to take such 
actions as Corning may request to preserve the favorable tax treatment 
provided for in any rulings obtained from the Internal Revenue Service in 
respect of the Distributions. 
    

   
   Corning, CCL and Covance will also enter into a tax sharing agreement 
which will allocate among Corning, CCL and Covance responsibility for 
federal, state and local taxes relating to taxable periods before and after 
the Spin-Off Distributions and provide for computing and apportioning tax 
liabilities and tax benefits for such periods among the parties. 


6. PLANNED CHANGE IN ACCOUNTING POLICY 
    
   Coincident with the CCL Spin-Off Distribution, CCL management will adopt a 
new accounting policy for evaluating the recoverability of intangible assets 
and measuring possible impairment under Statement of the Accounting 
Principles Board No. 17. Most of CCL's intangible assets resulted from 
purchase business combinations in 1993. Significant changes in the clinical 
laboratory and health care industries subsequent to 1993, including increased 
government regulation and movement from traditional fee-for-service care to 
managed cost health care, have caused the fair value of CCL's intangible 
assets to be significantly less than carrying value. CCL management believes 
that a valuation of intangible assets based on the amount for which each 
regional laboratory could be sold in an arms-length transaction is preferable 
to using projected undiscounted pre-tax cash flows. CCL believes fair value 
is a better indicator of the extent to which the intangible assets may be 
recoverable and therefore, may be impaired. This change in method of 
evaluating the recoverability of intangible assets will result in CCL 
recording a charge of between $400 million and $450 million coincident with 
the CCL Spin-Off Distribution to reflect the other than temporary impairment 
of intangible assets. This will result in a reduction of amortization expense 
of approximately $10 million to $11.3 million annually and $2.5 million to 
$2.8 million quarterly. 

   The fair value method will be applied to each of CCL's regional 
laboratories. In developing management's estimate of fair value, CCL 
management will consider, among other things, (i) the financial projections 
of each regional laboratory, (ii) the future of each regional laboratory, 
including growth opportunities, managed care concentration and planned 
actions, (iii) publicly-available information regarding comparable 
publicly-traded companies in the industry, (iv) comparable sales prices, if 
available, and (v) other information deemed relevant. 

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