CORNING PHARMACEUTICAL SERVICES INC
10-12B/A, 1996-11-06
COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH
Previous: SANCHEZ COMPUTER ASSOCIATES INC, S-1/A, 1996-11-06
Next: TUC HOLDING CO, U-1, 1996-11-06





                      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 
    

   
                                 COVANCE INC. 
           (formerly known as Corning Pharmaceutical Services Inc.) 
            (Exact name of registrant as specified in its charter) 
    


<TABLE>
<CAPTION>
 <S>                                                <C>
                   Delaware                               22-3265977 

 ----------------------------------------------     ---------------------- 
        (State or other jurisdiction of                (I.R.S. Employer 
         incorporation or organization)              Identification No.) 
              210 Carnegie Center 
              Princeton, New Jersey                       08540-6233 

 ----------------------------------------------     ---------------------- 
   (Address of principal executive offices)               (Zip Code) 

                               609 452 4440 
                                ------------ 
            (Registrant's telephone number, including area code) 

</TABLE>

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) 

<PAGE> 

                                 COVANCE 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 "Covance 
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 Covance," "Business of Covance" and "The 
Relationship Among Corning, CCL and Covance After the Distributions" of the 
Covance 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 Covance", "Pro Forma Financial Information of Covance," 
"Selected Historical Financial Data of Covance" and "Management's Discussion 
and Analysis of Financial Condition and Results of Operations of Covance" of 
the Covance Information and such sections are incorporated herein by 
reference. 

Item 3. Properties 

   The information required by this item is contained under the sections 
"Business of Covance--Facilities" and "Business of 
Covance--Services--Biomanufacturing" of the Covance Information, and such 
sections are 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 Covance" 
of the Covance 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 Covance" of the Covance 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 Covance" of the Covance 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 Covance" of the Covance Information and such section is 
incorporated herein by reference. 

Item 8. Legal Proceedings 

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

                                      2 
<PAGE> 

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

   
   The information required by this item is contained under the sections 
"Risk Factors--Risks Relating to Covance--Absence of Dividends; Restrictions 
Imposed on Dividends by the Covance Credit Facility," "Risk Factors--Risks 
Relating to Covance--Absence of Prior Public Market," " Risk Factors--Risks 
Relating to Covance--Potential Volatility of Stock Price," "Description of 
Covance Capital Stock--Covance Common Stock-- Dividend Policy," "--Covance 
Common Stock--Listing and Trading" and "Management of Covance" of the Covance 
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 Covance Capital Stock" and "Antitakeover Effects of Certain 
Provisions of the Covance Certificate of Incorporation and By-Laws" of the 
Covance 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 Covance" of the 
Covance 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 Covance," "Pro Forma Financial Information of Covance," 
"Selected Historical Financial Data of Covance," "Management's Discussion and 
Analysis of Financial Condition and Results of Operations of Covance" and 
"Financial Statements of Covance Inc." of the Covance 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 Covance Inc." of the Covance Information and such 
section is incorporated herein by reference. 

   (b) Exhibits 

                                      3 
<PAGE> 

   
<TABLE>
<CAPTION>
<S>            <C>
 Exhibit 
  Number       Description 
- ----------     ----------- 
 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 Covance 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 Covance Inc., 
               dated [      ], 1996 
10.3*          Form of Spin-Off Tax Indemnification Agreement between Covance Inc. and Corning Clinical 
               Laboratories Inc., dated [      ], 1996 
10.4*          Form of Spin-Off Tax Indemnification Agreement between Corning Clinical Laboratories, Inc. and 
               Covance Inc., dated [      ], 1996 
10.5*          Form of Credit Agreement among Covance Inc., Nationsbank, N.A., Wachovia Bank of Georgia, N.A. 
               and the Lenders named therein, dated [      ], 1996 
10.6*          Form of Covance Inc. Employee Stock Ownership Plan
10.7*          Form of the Stock Purchase Savings Plan of Covance Inc. 
10.8*          Form of Covance Inc. Employees Stock Purchase Program 
10.9*          Form of Covance Inc. Employee Equity Participation Program 
10.10*         Form of the Covance Inc. Executive Retirement Supplemental Plan 
10.11*         Form of Covance Inc. Restricted Share Plan 
10.12*         Form of Covance Inc. Directors' Restricted Stock Plan 
10.13*         Form of Covance Inc. Directors' Deferred Compensation 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; 28-30; 101-162; F-29-F-44) 
</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. 
    

                                            COVANCE INC. 

   
Dated: November 5, 1996           By: /s/ Jeffrey S. Hurwitz 
                                  ------------------------------------------- 
                                  Jeffrey S. Hurwitz, Senior Vice President, 
                                  General Counsel and Secretary 
    


                                      5 



                              TABLE OF CONTENTS 

   
<TABLE>
<CAPTION>
                                                                               Page 
                                                                               ----- 
<S>                                                                            <C>
THE RELATIONSHIP AMONG CORNING, CCL AND COVANCE AFTER THE DISTRIBUTIONS         28 
COVANCE INC. 
RISK FACTORS                                                                   101 
CAPITALIZATION OF COVANCE                                                      107 
SELECTED HISTORICAL FINANCIAL DATA OF COVANCE                                  108 
PRO FORMA FINANCIAL INFORMATION OF COVANCE                                     110 
MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS 
   OF OPERATIONS OF COVANCE                                                    115 
BUSINESS OF COVANCE                                                            122 
MANAGEMENT OF COVANCE                                                          140 
SECURITY OWNERSHIP BY CERTAIN BENEFICIAL OWNERS AND MANAGEMENT OF 
   COVANCE                                                                     151 
DESCRIPTION OF COVANCE CAPITAL STOCK                                           152 
ANTITAKEOVER EFFECTS OF CERTAIN PROVISIONS OF THE COVANCE CERTIFICATE OF 
   INCORPORATION AND BY-LAWS                                                   155 
DESCRIPTION OF CERTAIN INDEBTEDNESS OF COVANCE                                 159 
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> 

   
                                 COVANCE INC. 
    


                                 RISK FACTORS 

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

   
   Financial Impact of the Distributions on Covance. While Covance has a 
substantial operating history, it has not operated as a separate independent 
company. As a Corning subsidiary, Covance has had access to the cash flow 
generated by Corning and to Corning's credit, which is based on the combined 
assets of Corning, which included CCL and Covance. Subsequent to the 
Distributions, Covance will not have the benefit of Corning's cash flow or 
assets. This may impact, among other things, Covance's ability to expand, 
through acquisitions or otherwise, and could thereby have an adverse effect 
on Covance's operating earnings and cash flow. 
    

   
   Dependence on and Effect of Government Regulation. Covance's business 
depends on the continued strict government regulation of the drug development 
process, especially in the United States and Europe. Changes in regulation, 
including a relaxation in regulatory requirements or the introduction of 
simplified drug approval procedures, could have a material adverse effect on 
the demand for the services offered by Covance. 
    

   
   The failure on the part of Covance to comply with applicable regulations 
could result in the termination of ongoing research or the disqualification 
of data for submission to regulatory authorities. Furthermore, the issuance 
of a notice of finding by the Food and Drug Administration (the "FDA") to 
either Covance or its clients based upon a material violation by Covance of 
Good Clinical Practices ("GCP"), Good Laboratory Practices ("GLP") or Current 
Good Manufacturing Practices ("GMP") requirements could have a material 
adverse effect on Covance. See "Business of Covance--CRO Industry Overview" 
and "Business of Covance--Government Regulation." 
    

   
   Fixed Price Nature of Contracts; Loss or Delay of Large Contracts. Most of 
Covance's contracts for the provision of its services are fixed price or 
fee-for-service with a cap. Approximately 75% of Covance's net revenues are 
earned under contracts which generally range in duration from a few months to 
two years. For the fiscal year ended 1995, fixed price and fee-for-service 
contracts with a cap accounted for 65% of contract generated net revenues, 
with fixed price accounting for 40% and fee-for-service with a cap accounting 
for 25% of contract generated net revenues. The balance of the net revenues 
generated under contracts in 1995 were pursuant to fee- for-service contracts 
without a cap. Since Covance's contracts are predominantly structured as 
fixed price or fee- for-service with a cap, Covance bears the risks of cost 
overruns. Underpricing of such contracts or significant cost overruns could 
have a material adverse effect on Covance. 
    

   
   Most of Covance's contracts for the provision of its services, including 
contracts with governmental agencies, are terminable by the client 
immediately or upon notice. Contracts may be terminated for a variety of 
reasons, including the failure of products to satisfy safety requirements, 
unexpected or undesired results of the product, the client's decision to 
terminate the development of the product or to forego or end a particular 
study, insufficient patient enrollment or investigator recruitment or 
Covance's failure to properly discharge its obligations thereunder. Although 
the contracts often require payment to Covance of expenses to wind down the 
study and fees earned to date and, in some cases, a termination fee or a 
payment of a portion of the fees or profits that would have been earned under 
the contract if the contract had not been terminated early, the loss of a 
large contract or the loss of multiple contracts could have a material 
adverse effect on Covance. See "Business of Covance--Contractual 
Arrangements." 
    


                                     101 
<PAGE> 

   
   Biomanufacturing--New Business Venture. Covance holds a majority interest 
in Covance Biotechnology Services Inc. ("Covance Biotechnology," formerly 
known as Corning Bio Inc.), a majority owned company formed in 1995 to 
manufacture peptides and recombinant proteins for biotechnology and 
pharmaceutical clients in accordance with GMP for preclinical and clinical 
trials as well as for commercial sales and to provide process development 
services. See "Business of Covance--Services--Biomanufacturing." Outsourced 
biomanufacturing is a relatively new industry and as such companies in this 
industry are subject to all of the risks inherent in a new or emerging 
industry, including changes in the regulatory regime, an absence of an 
established earnings history, the availability of adequately trained 
management and employees, and the potential for significant client 
concentration. As a start-up venture, Covance Biotechnology is subject to the 
risks inherent in the establishment of a new business enterprise, including, 
among others, unanticipated construction delays, operational and 
manufacturing problems, additional and unforeseen costs and expenses and 
inability to attract and retain clients. There can be no assurance that, even 
after the expenditure of substantial funds and efforts, Covance Biotechnology 
will be able to market successfully its biomanufacturing services. Covance 
Biotechnology's biomanufacturing facility is still under construction and is 
expected to be "mechanically" completed during the fourth quarter of 1996. 
Mechanical completion occurs when all structural aspects of the facility are 
complete, all mechanical equipment and systems are installed and a 
certificate of occupancy has been issued by an applicable governmental 
authority. After mechanical completion, the facility must be "validated," 
which means that the various equipment, systems and procedures that are 
required to manufacture a biologic must be thoroughly tested and reviewed. 
Although Covance Biotechnology has submitted proposals to a number of 
prospective biopharmaceutical clients, it has been awarded only one contract, 
but has signed a number of letters of intent for the provision of services. 
For the period ended December 31, 1995, Covance Biotechnology reported a net 
loss of approximately $1.9 million, and for the nine months ended September 
30, 1996, Covance Biotechnology reported a net loss of approximately $2.3 
million. 
    

   
   The biomanufacturing facility is being financed through several tax 
retention operating leases provided by a commercial lending institution (the 
"Bank") and, during the construction phase, is being leased by a general 
contractor (the "General Contractor"). The leases expire 10 years from the 
date of mechanical completion of the facility. The annual minimum lease 
payments are currently estimated at $5.5 million. At the expiration of the 
lease term, Covance Biotechnology is liable for the unamortized balance of 
the cost of the facility, currently estimated to be $37 million. Covance 
Biotechnology may also choose to purchase the facility at specific dates over 
the 10 year period. Using current estimates, the purchase price would be 
approximately $54 million at the end of the first year, decreasing on an 
amortizing basis to approximately $37 million at the end of the tenth year. 
    

   
   Volatility of Quarterly Operating Results. Covance's quarterly operating 
results are subject to volatility due to such factors as the commencement, 
completion or cancellation of large contracts, progress of ongoing contracts, 
acquisitions, the timing of start-up expenses for new offices and changes in 
the mix of services. Since a large percentage of Covance's operating costs 
are relatively fixed, variations in the timing and progress of large 
contracts can materially affect quarterly results. Because a significant 
portion of Covance's revenues are generated by its international operations, 
exchange rate fluctuations may also influence these results. Covance believes 
that comparisons of its quarterly financial results are not necessarily 
meaningful and should not be relied upon as an indication of future 
performance. However, fluctuations in quarterly results could affect the 
market price of the Covance Common Stock in a manner unrelated to the longer 
term operating performance of Covance. See "Management's Discussion and 
Analysis of Financial Condition and Results of Operations of 
Covance--Quarterly Results." 
    

   
   Dependence on Certain Industries and Clients. Revenues of Covance are 
highly dependent on research and development expenditures by the 
pharmaceutical and biotechnology industries. Accordingly, Covance's 
operations could be materially and adversely affected by general economic 
downturns in these industries, the impact of the current trend toward 
consolidation in these industries or other factors resulting in a decrease in 
research and development expenditures. Furthermore, Covance has benefitted to 
date from the increasing tendency of pharmaceutical and biotechnology 
companies to outsource both small and large clinical research projects. A 
reversal of this trend could have a material adverse effect on the revenues 
of Covance. 
    

   
   Covance believes that concentrations of business in the contract research 
organization ("CRO") industry are not uncommon. Covance has experienced such 
concentration in the past and may experience such concentration in fiscal 
1997 and in future years. No client accounted for 10% or more of Covance's 
net revenues in 1993, 1994 or 1995. None of Covance's clients accounted for 
greater than 5% of Covance's net revenues in the year ended December 31, 
1993. In the years ended December 31, 1994 and 1995, one client accounted for 
greater than 5% of Covance's net revenue. 
    


                                     102 
<PAGE> 

   
In fiscal 1993, 1994 and 1995 and the nine months ended September 30, 1996, 
Covance's top five clients accounted for approximately 17%, 20%, 21% and 21%, 
respectively, of Covance's net revenue. The loss of business from a 
significant client or group of clients could have a material adverse effect 
on Covance. See "Business of Covance--Trends Affecting the CRO Industry" and 
"Business of Covance--Clients and Marketing." 
    

   
   Competition; CRO Industry Consolidation; Few Barriers to Entry. The CRO 
industry is highly fragmented, with participants ranging from hundreds of 
small, limited-service providers to a few full service CROs with global 
operations. Covance primarily competes against in-house departments of 
pharmaceutical companies, full-service CROs and, to a lesser extent, 
universities and teaching hospitals. CROs compete on the basis of several 
factors, including reputation for on-time quality performance, expertise and 
experience in specific therapeutic areas, scope of service offerings, how 
well such services are integrated, strengths in various geographic markets, 
price, technological expertise and efficient drug development processes, the 
ability to acquire, process, analyze and report data in a time- saving 
accurate manner, the ability to manage large-scale clinical trials both 
domestically and internationally, expertise and experience in health 
economics and size. While Covance has competed effectively in these areas, 
there can be no assurance that Covance will be able to continue to do so. As 
a result of competitive pressures, the CRO industry is consolidating. This 
trend is likely to produce competition among the larger CROs for both clients 
and acquisition candidates and companies may choose to limit the CROs they 
are willing to work with. In addition, there are few barriers to entry for 
small, limited-service entities considering entering the CRO industry. These 
entities may compete against larger CROs for clients. Furthermore, the CRO 
industry has attracted the attention of the investment community, which could 
lead to increased competition by increasing the availability of financial 
resources for CROs. Increased competition may lead to price and other forms 
of competition that could have a material adverse effect on the results of 
operations of Covance. See "Business of Covance--Competition." 
    

   
   Potential Liability. In connection with many clinical trials, Covance 
contracts with physicians, also referred to as investigators, to conduct the 
clinical trials to test new drugs on human volunteers. Such testing creates 
risk of liability for personal injury or death to volunteers, particularly to 
volunteers with life-threatening illnesses, resulting from adverse reactions 
to the drugs administered. Although Covance does not believe it is legally 
accountable for the medical care rendered by third-party investigators, it is 
possible that Covance could be held liable for the claims and expenses 
arising from any professional malpractice of the investigators with which it 
contracts or in the event of personal injury or death of persons 
participating in clinical trials. Covance also could be held liable for 
errors or omissions in connection with the services it performs that result 
in harm that arises either during or after a trial to study volunteers or 
consumers of the drug in the general marketplace subsequent to regulatory 
approval of the drug. For instance, improper storage, packaging or 
manufacturing of a compound could lead to its adulteration. In addition, 
Covance could be liable for the general risks associated with its Phase I 
facility including, but not limited to, adverse events resulting from the 
administration of drugs to clinical trial participants or the professional 
malpractice of Phase I medical care providers. Further, Covance could be held 
liable for harm to study volunteers or consumers of an approved drug for 
testing errors or omissions by either its preclinical or central 
laboratories. Moreover, because Covance's preclinical laboratories also 
conduct tests for the agrochemical and food industries, Covance could be held 
liable for errors or omissions that result in unsafe products entering the 
marketplace. Finally, although Covance's animal breeding facilities maintain 
procedures in accordance with applicable government regulations and the 
preventive measures contained in its company policies for the quarantine and 
handling of imported animals, including primates, there is a risk that these 
animals may be infected with diseases that may be harmful and even lethal to 
themselves and humans. In such a case, Covance may be subject to claims by 
employees, or persons who come in contact with employees, who were exposed to 
such infectious diseases. In 1996 Covance, with the approval of the Texas 
Department of Health and the Centers for Disease Control, destroyed a 
shipment of monkeys from the Philippines because some had been infected with 
a substrain of the Ebola- Reston virus, which is lethal to monkeys. Covance 
does not believe that it will have any liability resulting from such 
incident. 
    

   
   Covance believes that its risks are generally reduced by contractual 
indemnification provisions with clients and, where applicable, investigators 
(the scope of which varies from client to client and the performance of which 
are not secured); insurance maintained by clients and, where applicable, 
investigators and by Covance; and various regulatory requirements, including 
the use of institutional review boards in the clinical area and the 
procurement of each volunteer's informed consent to participate in the 
clinical study. The contractual indemnifications generally do not protect 
Covance against liability arising from certain of its own actions such as 
negligence. Covance could be materially and adversely affected if it were 
required to pay damages or bear the costs of defending any claim 
    


                                     103 
<PAGE> 

   
outside the scope of or in excess of a contractual indemnification provision 
or beyond the level of insurance coverage or in the event that an 
indemnifying party does not fulfill its indemnification obligations. There 
can be no assurance that Covance will be able to maintain such insurance 
coverage on terms acceptable to Covance. 
    

   
   Risks Associated with Acquisitions; Integration of Acquired 
Operations. During the last three fiscal years Covance completed three 
acquisitions. Covance reviews many acquisition candidates in the ordinary 
course of business and, in addition to acquisitions already made, Covance is 
continually evaluating new acquisition opportunities. Acquisitions involve 
numerous risks, including, among other things, difficulties and expenses 
incurred in connection with the acquisitions and the subsequent assimilation 
of the operations and services or products of the acquired companies, the 
diversion of management's attention from other business concerns and the 
potential loss of key employees of the acquired company. Acquisitions of 
foreign companies also may involve the additional risks of assimilating 
differences in foreign business practices and overcoming language and other 
cultural barriers. In the event that the operations of an acquired business 
do not perform as expected, Covance may be required to restructure the 
acquired business or write off the value of some or all of the assets of the 
acquired business. Further, to the extent that any future acquisitions are 
effected through the issuance of stock to the shareholders of the acquired 
company, the interest of shareholders holding shares of Covance prior to the 
acquisition will be diluted. There can be no assurance that acquisition 
candidates will be available on terms and conditions acceptable to Covance 
or, despite Covance's success with prior acquisitions, that any past or 
future acquisition will be successfully integrated into Covance's operations, 
or that they will contribute favorably to Covance's results of operations or 
financial condition. See "Management's Discussion and Analysis of Financial 
Condition and Results of Operations of Covance." 
    

   
   Potential Adverse Impact of Health Care Reform. The health care industry 
is subject to changing political, economic and regulatory influences that may 
affect the pharmaceutical and biotechnology industries. During 1994, several 
comprehensive health care reform proposals were introduced in Congress. The 
intent of the proposals was, generally, to expand health care coverage for 
the uninsured and reduce the growth of total health care expenditures. While 
none of the proposals was adopted, health care reform may again be addressed 
by Congress, and there have been efforts recently to enact less comprehensive 
reform bills. Similar reform movements have occurred in Europe and Asia. 
Implementation of government health care reform may adversely affect research 
and development expenditures by pharmaceutical and biotechnology companies 
which could decrease the business opportunities available to Covance in the 
United States and abroad. Covance is unable to predict the likelihood of such 
or similar legislation being enacted into law or the effects such legislation 
would have on Covance. 
    

   
   Loss of Brand Names. In connection with the Covance Spin-Off Distribution, 
Covance will change the trade names under which it conducts its business. 
Covance believes that its business has benefitted from the use of the 
"Corning," "Besselaar," "SciCor," "Hazleton," "PACT," "HTA," "National 
Packaging," "CRS Pacamed" and "HRP" brand names. The impact of the change in 
trade names on Covance's business and operations cannot be fully predicted. 
    

   
   Absence of Dividends; Restrictions on Dividends Imposed by the Covance Credit
Facility. It is currently contemplated that, following the Distributions,
Covance will not pay cash dividends in the foreseeable future, but will retain
earnings to provide funds for the operation and expansion of its business. In
addition, the Covance Credit Facility prohibits Covance from paying cash
dividends on the Covance Common Stock. See "Description of Capital Stock of
Covance--Covance Common Stock--Dividend Policy," "Management's Discussion and
Analysis of Financial Condition and Results of Operations of Covance--Liquidity
and Capital Resources" and "Description of Certain Indebtedness of Covance."
    

   
   Potential Liability under the Spin-Off Tax Indemnification Agreements.
Covance will enter into the Corning/ Covance Spin-Off Tax Indemnification
Agreement that will prohibit Covance 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 Covance 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 Covance. The Corning/Covance Spin-Off Tax
Indemnification Agreement will also require Covance 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.
Covance will also enter into the CCL/Covance Spin-Off Tax Indemnification
Agreement that will prohibit Covance 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 Covance or engaging in certain equity or financing
transactions, that might jeopardize the favorable tax treatment of the Covance
Spin-Off Distribution under Code
    


                                     104 
<PAGE> 

   

section 355 and will provide CCL with certain rights of indemnification
against Covance. The CCL/Covance Spin- Off Tax Indemnification Agreement will
also require Covance to take such actions as CCL may reasonably request to
preserve the favorable tax treatment provided for in any rulings obtained from
the IRS in respect of the Distributions. If obligations of Covance under either
the Corning/Covance Spin-Off Tax Indemnification Agreement or the CCL/Covance
Spin-Off Tax Indemnification Agreement were breached and primarily as a result
thereof either of the Distributions do not receive favorable tax treatment under
Code section 355, Covance would be required to indemnify Corning and CCL for
Taxes imposed and such indemnification obligations could exceed the net asset
value of Covance at such time. See "The Relationship Among Corning, CCL and
Covance After the Distributions-- Spin-Off Tax Indemnification Agreements."
    

   
   Potential Adverse Effect of Exchange Rate Fluctuations on 
Results. Approximately 22%, 24% and 30% of Covance's net revenues for the 
years ended December 31, 1993, 1994, and 1995, respectively, were derived 
from Covance's operations outside of the United States. Contracts between 
Covance's foreign subsidiaries and its clients are frequently denominated in 
currencies other than the applicable subsidiary's local currency. 
Accordingly, payments received for services rendered under such contracts are 
denominated in a currency different than the currency used for the payment of 
the subsidiary's expenses. Therefore, the subsidiary's net revenues, expenses 
and earnings are affected by fluctuations in exchange rates. To the extent 
Covance is unable to shift to its clients the effects of currency 
fluctuations, these fluctuations could have a material adverse effect on 
Covance's results of operations. Covance does not currently hedge against the 
risk of exchange rate fluctuations. In addition, Covance's combined financial 
statements are denominated in U.S. dollars, and, accordingly, changes in 
exchange rates between the applicable foreign currency and the U.S. dollar 
will affect the translation of such subsidiary's financial results into U.S. 
dollars for purposes of reporting Covance's combined financial results. 
    

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

   
   Potential Volatility of Stock Price. The market price of Covance Common 
Stock could be subject to wide fluctuations in response to quarter-to-quarter 
variations in operating results, changes in earnings estimates by analysts, 
market conditions in the contract research 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, Covance 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 Covance 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 
Covance 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 Covance 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 Covance." These market fluctuations could 
have an adverse effect on the market price of Covance Common Stock. Covance 
stockholders should be aware, and must be willing to bear the risk, of such 
fluctuations in earnings and stock price. 
    

   
   Dependence on Key Employees. Covance's affairs are managed by a small 
number of key management personnel, the loss of any of whom could have an 
adverse impact on Covance. Covance has separation agreements with such 
persons. There can be no assurance that Covance can retain its key managerial 
and technical employees or that it can attract, assimilate or retain other 
skilled technical personnel in the future. See "Management of Covance." 
    

   
   Certain Antitakeover Effects. Covance's amended and restated certificate of
incorporation (the "Covance Certificate") and by-laws (the "Covance 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 Covance in a transaction not approved by the board of directors of
Covance (the "Covance Board"), or, in certain

                                     105 
<PAGE> 

circumstances, by the disinterested members of the Covance Board. In addition,
an acquisition of certain securities or assets of Covance within two years after
the Distribution Date might jeopardize the tax treatment of the Distributions
and could result in Covance being required to indemnify Corning and CCL. See
"--Potential Liability under the Spin-Off Tax Indemnification Agreements" and
"Antitakeover Effects of Certain Provisions of the Covance Certificate of
Incorporation and the Covance By-Laws."
    


                                     106 
<PAGE> 

   
                          CAPITALIZATION OF COVANCE 
    

   
   The following table sets forth Covance's capitalization as of September 
30, 1996 giving effect to the estimated initial borrowing under the Covance 
Credit Facility and the Covance Spin-Off Distribution as if such transactions 
occurred on such date. This table should be read in conjunction with the 
Covance Financial Statements (as defined below) and notes thereto, and the 
Covance Pro Forma Financial Information (as defined below) and notes thereto 
included elsewhere herein. Historical and pro forma capitalization may not be 
indicative of Covance's future capitalization as an independent company. See 
"Management's Discussion and Analysis of Financial Condition and Results of 
Operations of Covance" and "Business of Covance." 
    


<TABLE>
<CAPTION>
                                                       Pro Forma 
                                        Historical    Adjustments     Pro Forma 
                                        ----------    ------------   ----------- 
                                                     (in thousands) 
<S>                                     <C>           <C>            <C>
Long-Term Debt: 
 Due to banks                            $             $ 128,165 (a)   $128,165 
 Due to Corning and affiliates            118,165       (118,165)(a) 
                                          --------     -----------      --------- 
  Total Long-Term Debt                    118,165         10,000        128,165 
                                          --------     -----------      --------- 
Stockholder's Equity: 
 Contributed capital                       32,368         22,500 (b)     54,868 
 Retained earnings                         70,505        (17,822)(b)     52,683 
 Cumulative translation adjustment          2,999                         2,999 
                                          --------     -----------      --------- 
  Total Stockholder's Equity              105,872          4,678        110,550 
                                          --------     -----------      --------- 
Total Capitalization                     $224,037      $  14,678       $238,715 
                                          ========     ===========      ========= 
</TABLE>

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

   
(a) The pro forma adjustment to long-term debt due to banks and due to 
    Corning and affiliates reflect the borrowings to be incurred in 
    connection with the Covance Spin-Off Distribution. Immediately prior to 
    the Covance Spin-Off Distribution, Covance will incur long-term bank 
    borrowings to repay Corning and affiliates for all intercompany 
    borrowings and income tax liabilities. Assuming the Covance Spin-Off 
    Distribution occurred on September 30, 1996, such borrowings would 
    aggregate approximately $128.2 million. The assumed interest rate on 
    these borrowings is 6.0%. 
    

   
(b) The pro forma adjustments to contributed capital and retained earnings 
    represent costs directly related to the Covance Spin-Off Distribution 
    expected to be incurred during the fourth quarter of 1996. Such costs 
    consist of direct costs of the Covance Spin-Off Distribution and one-time 
    charges associated with shares allocated to the employee stock ownership 
    and other employee benefit plans. 
    


                                     107 
<PAGE> 

   
                        SELECTED HISTORICAL FINANCIAL 
                               DATA OF COVANCE 
    

   
   The following table presents selected historical financial data of Covance 
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 Covance 
(the "Audited Covance Financial Statements") and the notes thereto included 
elsewhere herein. The selected financial data as of and for the nine months 
ended September 30, 1996 and 1995 and the years ended December 31, 1992 and 
1991 have been derived from the unaudited combined financial statements of 
Covance (the "Covance Interim Financial Statements" and, together with the 
Audited Covance Financial Statements, the "Covance Financial Statements"). In 
the opinion of management, the unaudited combined financial statements 
include all adjustments, consisting of normal recurring accruals, 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 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 Covance 
Financial Statements and notes thereto, and the Covance Pro Forma Financial 
Information included elsewhere herein. Historical combined financial data may 
not be indicative of Covance's future performance as an independent company. 
See the Covance Financial Statements and notes thereto and Covance Pro Forma 
Financial Information and notes thereto. See also "Management's Discussion 
and Analysis of Financial Condition and Results of Operations of Covance" and 
"Business of Covance." 
    


                                     108 
<PAGE> 

<TABLE>
<CAPTION>
                                  Nine Months Ended 
                                    September 30,                          Year Ended December 31, 
                               ------------------------  ------------------------------------------------------------ 
                                  1996         1995          1995         1994        1993       1992         1991 
                               ----------  ------------  ------------  ---------- ----------  ----------   ---------- 
                                                                   (in thousands) 
<S>                            <C>         <C>           <C>           <C>        <C>         <C>          <C>
Income Statement Data: 
Net revenues                    $357,406     $302,886      $409,174     $319,501    $289,697   $270,871     $246,949 
Costs and expenses: 
 Cost of revenue                 232,828      198,820       270,726      213,490     192,783    192,375      176,860 
 Selling, general and 
   administrative                 57,573       46,965        64,201       48,892      42,949     41,230       37,106 
 Restructuring charge                           4,616         4,616                               3,373 
 Depreciation and 
   amortization                   18,130       16,166        22,070       18,520      16,984     15,212       14,621 
                                 --------    ----------    ----------   --------    --------    --------    --------- 
   Total                         308,531      266,567       361,613      280,902     252,716    252,190      228,587 
                                 --------    ----------    ----------   --------    --------    --------    --------- 
Income from operations            48,875       36,319(a)     47,561(a)    38,599      36,981     18,681       18,362 
                                 --------    ----------    ----------   --------    --------    --------    --------- 
Other expense (income) 
 Interest expense, net             4,536        3,918         5,269        4,307       4,421      5,686        4,388 
 Foreign exchange (gain) 
   loss                             (212)        (609)         (784)        (712)        852      1,258 
                                 --------    ----------    ----------   --------    --------    --------    --------- 
                                   4,324        3,309         4,485        3,595       5,273      6,944        4,388 
                                 --------    ----------    ----------   --------    --------    --------    --------- 
Income before taxes and 
  equity investee loss (gain)     44,551       33,010(a)     43,076(a)    35,004      31,708     11,737       13,974 
Taxes on income                   19,411       14,147        18,445       14,924      13,506      6,834        6,835 
Equity investee loss (gain)          (68)         351           405          435       1,391        303          394 
                                 --------    ----------    ----------   --------    --------    --------    --------- 

Net income before cumulative 
  effect of change in 
  accounting method               25,208       18,512        24,226       19,645      16,811      4,600        6,745 
Cumulative effect of change 
  in method of accounting for 
  postretirement benefits 
  other than pensions                                                                             4,334 
                                 --------    ----------    ----------   --------    --------    --------    --------- 
Net income                      $ 25,208     $ 18,512(a)   $ 24,226(a)  $ 19,645    $ 16,811   $    266     $  6,745 
                                 ========    ==========    ==========   ========    ========    ========    ========= 
Balance Sheet Data 
  (at end of period): 
 Working capital                $ 47,453     $ 27,362      $ 18,472     $ 12,961    $ 12,076   $ 15,451     $ 12,817 
 Total assets                    402,592      332,257       322,510      271,992     229,693    225,337      183,174 
 Long-term debt                  118,165       97,711        89,836       75,178      69,239     77,916       88,801 
 Stockholder's equity            105,872       78,361        82,517       63,908      49,388     37,197       37,206 
</TABLE>

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

   
(a) Excluding the impact of the second quarter 1995 restructuring charge 
    totalling $4,616 ($2,770 net of tax), income from operations, income 
    before taxes and equity investee loss and net income for the nine months 
    ended September 30, 1995 was $40,935, $37,626 and $21,282, respectively, 
    and for the year ended December 31, 1995 was $52,177, $47,692 and 
    $26,996, respectively. 
    


                                     109 
<PAGE> 

   
                  PRO FORMA FINANCIAL INFORMATION OF COVANCE 
    

   
   The unaudited pro forma combined statements of income for the nine months 
ended September 30, 1996 and the year ended December 31, 1995 present the 
results of operations of Covance assuming that the Covance Spin-Off 
Distribution 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 Covance assuming that the Covance Spin-Off Distribution 
had been completed on that date. In the opinion of Covance management, the 
unaudited pro forma combined financial information of Covance ("Covance Pro 
Forma Financial Information") includes all material adjustments necessary to 
restate Covance's historical results. The adjustments required to reflect 
such assumptions are described in the Notes to the Covance Pro Forma 
Financial Information and are set forth in the "Pro Forma Adjustments" 
column. 
    

   
   The Covance Pro Forma Financial Information should be read in conjunction 
with the Covance Financial Statements and notes thereto included elsewhere 
herein. The Covance 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 Covance Spin-Off Distribution 
occurred as assumed herein, or had Covance been operated as an independent 
company during the periods shown. 
    


                                     110 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
               UNAUDITED PRO FORMA COMBINED STATEMENT OF INCOME 
                     Nine Months Ended September 30, 1996 
    


<TABLE>
<CAPTION>
                                                                  Pro Forma 
                                                   Historical    Adjustments      As Adjusted 
                                                  ------------  -------------  ---------------- 
                                                    (in thousands, except share and per share 
                                                                      data) 
<S>                                               <C>           <C>            <C>
Net revenues                                        $357,406       $              $   357,406 

Cost and expenses 
 Cost of revenue                                     232,828                          232,828 
 Selling, general and administrative expenses         57,573         1,500 (a)         59,073 
 Depreciation and amortization                        18,130                           18,130 
                                                     ----------    -----------    -------------- 
  Total                                              308,531         1,500            310,031 
                                                     ----------    -----------    -------------- 
Income from operations                                48,875        (1,500)            47,375 
                                                     ----------    -----------    -------------- 
Other expense 
 Interest expense, net                                 4,536               (b)          4,536 
 Foreign exchange loss                                  (212)                            (212) 
                                                     ----------    -----------    -------------- 
                                                       4,324                            4,324 
                                                     ----------    -----------    -------------- 
Income before taxes and equity investee loss          44,551        (1,500)            43,051 
Taxes on income                                       19,411          (593)(c)         18,818 
Equity investee (gain)                                   (68)                             (68) 
                                                     ----------    -----------    -------------- 

Net income                                          $ 25,208       $  (907)       $    24,301 
                                                     ==========    ===========    ============== 

Pro forma shares outstanding                                                       56,903,469(d) 

Net income per share                                                              $      0.43(e) 
</TABLE>

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

                                     111 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
               UNAUDITED PRO FORMA COMBINED STATEMENT OF INCOME 
                         Year Ended December 31, 1995 
    


<TABLE>
<CAPTION>
                                                                  Pro Forma 
                                                   Historical    Adjustments      As Adjusted 
                                                  ------------  -------------  ---------------- 
                                                    (in thousands, except share and per share 
                                                                      data) 
<S>                                               <C>           <C>            <C>
Net revenues                                        $409,174       $              $   409,174 

Cost and expenses 
 Cost of revenue                                     270,726                          270,726 
 Selling, general and administrative expenses         64,201         2,000 (a)         66,201 
 Restructuring charge                                  4,616                            4,616 
 Depreciation and amortization                        22,070                           22,070 
                                                     ----------    -----------    -------------- 
  Total                                              361,613         2,000            363,613 
                                                     ----------    -----------    -------------- 
Income from operations                                47,561        (2,000)            45,561 
                                                     ----------    -----------    -------------- 
Other expense (income) 
 Interest expense, net                                 5,269               (b)          5,269 
 Foreign exchange (gain)                                (784)                            (784) 
                                                     ----------    -----------    -------------- 
                                                       4,485                            4,485 
Income before taxes and equity investee loss          43,076        (2,000)            41,076 
Taxes on income                                       18,445          (790)(c)         17,655 
Equity investee loss                                     405                              405 
                                                     ----------    -----------    -------------- 
Net income                                          $ 24,226       $(1,210)       $    23,016 
                                                     ==========    ===========    ============== 

Pro forma shares outstanding                                                       56,903,469(d) 

Net income per share                                                              $      0.40(e) 
</TABLE>

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

                                     112 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
                  UNAUDITED PRO FORMA COMBINED BALANCE SHEET 
                              September 30, 1996 
    


<TABLE>
<CAPTION>
                                                                Pro Forma         As 
                                                Historical     Adjustments     Adjusted 
                                               ------------  --------------   ---------- 
                                                             (in thousands) 
<S>                                            <C>           <C>              <C>
Assets 
Current Assets: 
 Cash and cash equivalents                       $ 13,551       $              $ 13,551 
 Accounts receivable, net                          95,690                        95,690 
 Unbilled services                                 43,110                        43,110 
 Inventory                                         14,718                        14,718 
 Deferred income taxes                             14,273                        14,273 
 Prepaid expenses and other assets                 20,639                        20,639 
                                                  ----------    ------------   --------- 
  Total Current Assets                            201,981                       201,981 

Property and equipment, net                       143,956                       143,956 
Goodwill, net                                      43,443                        43,443 
Other assets                                       13,212                        13,212 
                                                  ----------    ------------   --------- 
  Total Assets                                   $402,592       $              $402,592 
                                                  ==========    ============   ========= 

Liabilities and Stockholder's Equity 
Current Liabilities: 
 Trade accounts payable                          $ 23,627                      $ 23,627 
 Accrued payroll and benefits                      30,058                        30,058 
 Accrued expenses and other liabilities            36,410       $   5,000 (f)    41,410 
 Unearned revenue                                  46,025                        46,025 
 Income taxes payable                              18,408         (10,000)(g)     8,408 
                                                  ----------    ------------   --------- 
  Total Current Liabilities                       154,528          (5,000)      149,528 
                                                  ----------    ------------   --------- 

Long-term debt                                                    128,165 (g)   128,165 
Due to Corning Incorporated and affiliates        118,165        (118,165)(g) 
Deferred income taxes                               9,583          (9,678)(f)       (95) 
Other liabilities                                  14,444                        14,444 
                                                  ----------    ------------   --------- 
  Total Liabilities                               296,720          (4,678)      292,042 
                                                  ----------    ------------   --------- 

Commitments and Contingent Liabilities 
Stockholder's Equity: 
 Contributed capital                               32,368          22,500 (f)    54,868 
 Retained earnings                                 70,505         (17,822)(f)    52,683 
 Cumulative translation adjustment                  2,999                         2,999 
                                                  ----------    ------------   --------- 
  Total Stockholder's Equity                      105,872           4,678       110,550 
                                                  ----------    ------------   --------- 
Total Liabilities and 
 Stockholder's Equity                            $402,592       $              $402,592 
                                                  ==========    ============   ========= 
</TABLE>

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

                                     113 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION 
    


Note 1--Pro Forma Adjustments: 

Statements of Income 

(a) The pro forma adjustment to selling, general and administrative expenses 
    represents estimated incremental administrative overhead costs associated 
    with being a public company. 

   
(b) Immediately prior to the Covance Spin-Off Distribution, Covance will 
    incur long-term bank borrowings to repay Corning and affiliates for all 
    intercompany borrowings and income tax liabilities due at the date of the 
    Covance Spin-Off Distribution. Assuming the Covance Spin-Off Distribution 
    occurred on September 30, 1996, such borrowings would aggregate 
    approximately $128.2 million. Since the assumed interest rate on these 
    borrowings of 6.0% approximates the blended rate on Covance's historical 
    borrowings from Corning, no pro forma adjustment to interest expense is 
    necessary. If the interest rate on the bank borrowings fluctuates by 
    1/8%, interest expense fluctuates by approximately $160,000 annually. 
    

(c) The pro forma adjustment to taxes on income represents the estimated 
    income tax benefit of pro forma adjustment (a) above at an effective tax 
    rate of 39.5%. 

   
(d) The pro forma common shares outstanding represents Covance management's 
    current estimate of the number of shares to be outstanding after the 
    Covance Spin-Off Distribution. Management's estimate includes (a) the 
    issuance of approximately 56.0 million shares of Covance Common Stock at 
    an exchange ratio of one share of Covance Common Stock issued for every 
    four shares of Corning Common Stock outstanding and (b) the issuance of 
    an estimated 900,000 shares into the employee stock ownership and other 
    benefit plans. Covance 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 Covance Spin-Off 
    Distribution and finalization of the proposed structure of the employee 
    stock ownership plan. 
    


Net Income Per Share 

   
(e) Net income per share is computed by dividing net income by the pro forma 
    number of shares of common stock outstanding. Common stock equivalents 
    are not included in the net income per share computation because they do 
    not result in material dilution. Historical net income per share is not 
    presented as Covance's historical capital structure is not comparable to 
    periods subsequent to the Covance Spin-Off Distribution. 
    


Balance Sheet 

   
(f) The pro forma adjustments to accrued expenses and other liabilities, 
    contributed capital, deferred income taxes and retained earnings 
    represent costs directly related to the Covance Spin-Off Distribution 
    expected to be incurred during the fourth quarter of 1996. Such amounts, 
    which consist of direct costs of the Covance Spin-Off Distribution 
    (estimated at $5.0 million) and one-time charges associated with the 
    issuance of shares into the employee stock ownership (estimated at $21.0 
    million) and other benefit plans (estimated at $1.5 million), which 
    amounts represent the estimated fair market value of such shares at the 
    expected date of issuance, have not been reflected in the Unaudited Pro 
    Forma Combined Statements of Income because they are non-recurring. The 
    amount of the charges associated with the issuance of shares into the 
    employee stock ownership and other benefit plans is subject to change 
    based on the market price of the Covance Common Stock on the Distribution 
    Date. 
    

   
(g) The pro forma adjustments to long-term debt, due to Corning and 
    affiliates and income taxes payable reflect the borrowings to be incurred 
    in connection with the Covance Spin-Off Distribution. Immediately prior 
    to the Covance Spin-Off Distribution, Covance will incur long-term bank 
    borrowings to repay Corning and affiliates for all intercompany 
    borrowings and income tax liabilities. Assuming the Covance Spin-Off 
    Distribution occurred on September 30, 1996 such borrowings would 
    aggregate approximately $128.2 million. 
    


                                     114 
<PAGE> 

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


Overview 

   
   Covance is a leading CRO providing a wide range of integrated product 
development services on a worldwide basis to the biotechnology, 
pharmaceutical and medical device industries. In addition, and to a lesser 
extent, Covance provides services such as health economics for managed care 
organizations, hospitals and health care provider networks, and early 
development and laboratory testing services to the chemical, agrochemical and 
food industries. The foregoing services can be broadly classified into six 
lines of business: preclinical, biomanufacturing, clinical and periapproval, 
central laboratory, clinical packaging, and health economics. These six lines 
of business can be further categorized as non-clinical (preclinical and 
biomanufacturing) and clinical (clinical and periapproval, central 
laboratory, clinical packaging and health economics). Covance believes it is 
one of the largest biopharmaceutical CROs, based on estimated 1995 annual net 
revenue, and one of only a few that are capable of providing comprehensive 
global product development services. Covance offers its clients high quality 
services designed to reduce product development time, allowing them to 
introduce their products into the marketplace faster and, thus, maximize the 
period of marketing exclusivity and monetary return on their investments. 
Additionally, Covance's comprehensive services and broad experience provide 
clients with a variable cost alternative to fixed cost internal development 
capabilities. 
    

   
   The businesses that today constitute Covance were acquired by Corning, 
starting in 1987, as part of a strategy to create a global, integrated and 
full service product development company. In keeping with this strategy, 
during the period 1994 through the present, Covance has purchased the 
remaining interest in a jointly owned company, acquired a significant 
minority interest in a complementary service business, acquired two new 
businesses and formed a major new business venture. Specifically, in April 
1994, Covance acquired the remaining interest in SciCor S.A., a provider of 
central laboratory testing services based in Switzerland. The transaction was 
accounted for as a purchase business combination. In October 1994, Covance 
acquired a significant minority equity position in Bio- Imaging Technologies, 
Inc. ("Bio-Imaging"), which uses proprietary imaging technology to quantify 
the diagnostic and therapeutic effectiveness of experimental drugs and 
devices. Covance expanded its offering of value added product development 
services in January 1995 with the acquisition of National Packaging Systems, 
Inc., a leading clinical packaging company. The transaction was accounted for 
as a purchase business combination. In February 1995, Covance formed Covance 
Biotechnology, a majority-owned company which will enable Covance to engage 
in biomanufacturing. In recognition of the rapid changes in the 
biopharmaceutical industry's marketplace, particularly the need for the 
industry to further demonstrate the benefits and cost effectiveness of their 
products to payors, Covance purchased in March 1996 all the assets and 
substantially all of the liabilities of Health Technology Associates, Inc. 
("HTA"), a leading health economics company, in a transaction accounted for 
as a purchase business combination. In October 1996, Covance expanded its 
clinical packaging capabilities to Europe with the purchase of Swiss based 
CRS Pacamed AG (now known as Covance Pharmaceutical Packaging Services AG). 
In addition, Covance acquired an 81,000 square foot facility in Horsham, 
England, which will be used, among other things, to provide clinical 
packaging services in Europe. 
    

   
   During the fiscal year ended December 31, 1995, approximately 
three-quarters of Covance's net revenues were earned under contracts, which 
generally range in duration from a few months to two years. Revenue from 
these contracts is recognized as costs are incurred on the basis of the 
relationship between costs incurred and estimated total costs. Typically, 
Covance's contracts in the preclinical, central laboratory, clinical 
packaging and health economics areas are fixed price or fee-for-service and 
in the clinical and periapproval areas are fee-for-service with a cap. To a 
lesser extent, some of the contracts in the clinical and periapproval areas 
are fixed price or fee-for-service without a cap. The contracts may contain 
provisions for renegotiation for cost overruns arising from changes in the 
level of work scope. Renegotiated amounts are included in net revenues when 
earned and realization is assured. In some cases, for multi-year contracts 
involving preclinical and clinical and periapproval trials, a portion of the 
contract fee is paid at the time the trial is initiated, with 
performance-based installments payable over the contract duration, in some 
cases on a milestone achievement basis. Covance routinely subcontracts with 
independent physician investigators in connection with multi-site clinical 
trials. Investigator fees are not reflected in net revenues or expenses since 
such fees are granted by customers on a "pass-thru basis" without risk or 
reward to Covance. While most contracts are terminable either immediately or 
upon notice by the client, they typically require payment 
    


                                     115 
<PAGE> 

of expenses to wind down a study and fees earned to date, and, in some cases, 
a termination fee or a payment of some portion of the fees or profit that 
could have been earned under the contract if it had not been terminated 
early. 

   
   Covance's cost of revenue includes appropriate amounts necessary to 
complete the net revenues and earnings process and includes direct labor and 
related benefit charges, other direct costs and allocable expenses (including 
indirect labor, facility charges and information technology costs). These 
costs, as a percentage of net revenues, tend to fluctuate from one period to 
another (generally within a range of up to 2% in either direction) 
principally as a result of changes in labor utilization and the mix of 
service offerings involving hundreds of studies conducted during any period 
of time. Accordingly, changes in cost of revenue as a percentage of net 
revenues plus or minus 2% are expected from one period to another. 
    


Results of Operations 

   
   Three Months Ended September 30, 1996 Compared with Three Months Ended 
September 30, 1995. Net revenues increased 19.9% to $127.2 million for the 
three months ended September 30, 1996 from $106.1 million for the 
corresponding 1995 period. Excluding the impact of the 1996 acquisition of 
HTA, growth in net revenues was 14.3%. Net revenues from Covance's combined 
clinical lines of business, excluding the recently acquired health economics 
business, grew in excess of 15% benefitting from the continuing trend in 
outsourcing of clinical development activities, while net revenues from 
Covance's preclinical business grew in excess of 10%. 
    

   
   Cost of revenue increased 18.8% to $83.2 million for the three months 
ended September 30, 1996 from $70.1 million for the corresponding 1995 period 
as a result of the increase in net revenues. Cost of revenue, as a percentage 
of net revenues, decreased to 65.4% for the three months ended September 30, 
1996 from 66.0% for the corresponding 1995 period. 
    

   
   Overall, selling, general and administrative expense, which consists 
primarily of administrative payroll and related benefit charges, advertising 
and promotional expenses, administrative travel and allocable expenses 
(facility charges and information technology costs), increased 22.2% to $20.6 
million for the three months ended September 30, 1996 from $16.9 million for 
the corresponding 1995 period. As a percentage of net revenues, selling, 
general and administrative expense increased to 16.2% for the quarter ended 
September 30, 1996 from 15.9% for the corresponding 1995 period. Contributing 
to the increase in selling, general and administrative expense were a 
continuing increase in Covance's corporate center function, administrative 
costs associated with the establishment of Covance's new Singapore operation 
and the evaluation of further geographic expansion opportunities, partially 
offset by a reduction in certain administrative costs allocated by Corning 
and affiliates. 
    

   
   Depreciation and amortization increased 6.5% to $5.8 million or 4.6% of 
net revenues for the three months ended September 30, 1996 from $5.5 million 
or 5.2% of net revenues for the corresponding 1995 period as the growth in 
net revenues outpaced the increase in these non-cash charges. 
    

   
   Income from operations increased 28.0% to $17.5 million or 13.8% of net 
revenues for the quarter ended September 30, 1996 from $13.7 million or 12.9% 
of net revenues for the corresponding 1995 period. 
    

   
   Other expense increased $1.3 million for the three months ended September 
30, 1996 to $1.6 million from $0.2 million for the corresponding 1995 period, 
due to an increase in interest expense, net of $0.7 million and to larger 
foreign exchange gains recognized during the 1995 three-month period. 
    

   
   Covance's effective tax rate for the three months ended September 30, 1996 
increased to 43.4% from 42.9% for the comparable period in 1995. Since 
Covance operates on a global basis, its effective tax rate is subject to 
variation from year to year as the geographic dispersion of its pre-tax 
earnings changes. 
    

   
   Net income increased $1.6 million to $9.1 million for the quarter ended 
September 30, 1996 from $7.5 million for the corresponding 1995 period. 
    

   
   Nine Months Ended September 30, 1996 Compared with Nine Months Ended 
September 30, 1995. Net revenues increased 18.0% to $357.4 million for the 
nine months ended September 30, 1996 from $302.9 million for the 
corresponding 1995 period. Excluding the impact of the 1996 acquisition of 
HTA, growth in net revenues was 14.4%. Net revenues from Covance's combined 
clinical lines of business, excluding the newly acquired health economics 
business, grew nearly 20%, benefitting from the continuing trend in 
outsourcing of clinical development activities, while net revenues from its 
more mature preclinical line of business grew approximately 8.0%. 
    


                                     116 
<PAGE> 

   
   Cost of revenue increased 17.1% to $232.8 million for the nine months 
ended September 30, 1996 from $198.8 million for the corresponding 1995 
period as a result of the increase in net revenues. Cost of revenue, as a 
percentage of net revenues, decreased slightly to 65.1% for the nine months 
ended September 30, 1996 from 65.6% for the corresponding 1995 period. 
    

   
   Overall, selling, general and administrative expense increased 22.6% to 
$57.6 million for the nine months ended September 30, 1996 from $47.0 million 
for the corresponding 1995 period. As a percentage of net revenues, selling, 
general and administrative expense increased to 16.1% for the nine months 
ended September 30, 1996 from 15.5% for the corresponding 1995 period. 
Contributing to the increase in selling, general and administrative expenses 
were increasing pre-operating costs relative to Covance's biomanufacturing 
business, an increase in Covance's corporate center function, administrative 
costs associated with the establishment of Covance's new Singapore operation 
and the evaluation of further geographic expansion opportunities, partially 
offset by a reduction in certain administrative costs allocated by Corning 
and affiliates. 
    

   
   Depreciation and amortization increased 12.1% to $18.1 million or 5.1% of 
net revenues for the nine months ended September 30, 1996 from $16.2 million 
or 5.3% of net revenues for the corresponding 1995 period as the growth in 
net revenues outpaced the increase in these non-cash charges. 
    

   
   Income from operations increased 34.6% to $48.9 million for the nine 
months ended September 30, 1996 from $36.3 million for the corresponding 1995 
period. During the second quarter of 1995, Covance recorded a restructuring 
provision totalling $4.6 million ($2.8 million after tax) as a result of 
management's decision to discontinue certain nonstrategic operations. 
Excluding the impact of the 1995 restructuring provision, income from 
operations increased 19.4% to 13.7% of net revenues for the nine months ended 
September 30, 1996 from 13.5% of net revenues for the corresponding 1995 
period. 
    

   
   Other expense increased $1.0 million for the nine months ended September 
30, 1996 to $4.3 million from $3.3 million for the corresponding 1995 period, 
due to an increase in interest expense, net of $0.6 million and to larger 
foreign exchange gains recognized during the first nine months of 1995. 
    

   
   Covance's effective tax rate for the nine months ended September 30, 1996 
increased to 43.6% from 42.9% for the comparable period in 1995. Since 
Covance operates on a global basis, its effective tax rate is subject to 
variation from year to year as the geographic dispersion of its pre-tax 
earnings changes. 
    

   
   Net income increased $6.7 million to $25.2 million for the nine months 
ended September 30, 1996 from $18.5 million for the corresponding 1995 
period. Excluding the impact of the 1995 restructuring provision, net income 
increased $3.9 million or 18.4% for the nine months ended September 30, 1996 
compared to the corresponding 1995 period. 
    

   
   Year Ended December 31, 1995 Compared with Year Ended December 31, 
1994. Net revenues increased 28.1% to $409.2 million for 1995 from $319.5 
million for 1994. Excluding the impact of the 1995 acquisition of National 
Packaging Systems, Inc., growth in net revenues was 23.8%. Net revenues from 
Covance's combined clinical lines of business, excluding the newly acquired 
clinical packaging business, grew in excess of 35%, generally as a result of 
the growth in outsourcing of clinical development activities in 1995 as 
compared to 1994 and more specifically because of Covance's central 
laboratory's effort to complete development work on several large protease 
inhibitor studies by the end of 1995. Net revenues from Covance's preclinical 
business grew nearly 10%, largely as a result of particularly strong growth 
in Europe, fueled by new service offerings, overall volume increases and 
favorable foreign exchange rates in 1995 compared to 1994. 
    

   Cost of revenue increased 26.8% to $270.7 million or 66.2% of net revenues 
for 1995 from $213.5 million or 66.8% of net revenues for 1994, as a result 
of the increase in net revenues. 

   
   Overall, selling, general and administrative expense increased 31.3% to 
$64.2 million for 1995 from $48.9 million for 1994. As a percentage of net 
revenues these costs increased to 15.7% for 1995 from 15.3% for 1994. Largely 
contributing to the increase in selling, general and administrative expenses 
were administrative costs associated with the establishment of Covance's new 
biomanufacturing business, an increase in Covance's corporate center 
function, strategic consulting expenses incurred to reorganize a large 
portion of Covance's clinical operations into customer teams to better manage 
large scale clinical trials and increased marketing initiatives such as the 
establishment of a Lotus Notes(R) based centralized client contact database 
for use by Covance's sales force, partially 
    


                                     117 
<PAGE> 

   
offset by a non-recurring charge incurred in 1994 in connection with a 
separation payment made to Covance's then chief executive officer upon his 
resignation. 
    

   
   During 1995, Covance recorded a restructuring provision totalling $4.6 
million ($2.8 million after tax) as a result of management's decision to 
discontinue certain nonstrategic operations. The restructuring charge 
included severance costs relating to approximately 90 employees of which 
approximately 50 had been terminated as of December 31, 1995. The remaining 
employees were terminated and all other substantive activities to complete 
the restructuring plan were completed by April 30, 1996. Severance benefits 
are being paid in the form of salary continuation. The restructuring 
activities have occurred substantially in accordance with the restructuring 
plan. 
    

   Depreciation and amortization increased 19.2% to $22.1 million or 5.4% of 
net revenues for 1995 from $18.5 million or 5.8% of net revenues for 1994 as 
the growth in net revenues outpaced the increase in these non- cash charges. 

   Income from operations increased $9.0 million or 23.2% to $47.6 million 
for 1995 from $38.6 million for 1994. Excluding the impact of the 1995 
restructuring provision, the increase in income from operations was $13.6 
million or 35.2% to 12.8% of net revenues for 1995 from 12.1% of net revenues 
for 1994. 

   Other expense increased $0.9 million for 1995 to $4.5 million from $3.6 
million for 1994. This increase is entirely a result of an increase in 
interest expense relating principally to 1995 acquisition activity. 
Substantially all borrowings to date have been from Corning. 

   
   Covance's effective tax rate for 1995 increased slightly to 42.8% from 
42.6% for 1994. 
    

   Net income increased 23.3% to $24.2 million for 1995 from $19.6 million 
for 1994. Excluding the impact of the 1995 restructuring provision, the 
increase in net income was $7.4 million or 37.4% for 1995. 

   
   Year Ended December 31, 1994 Compared with Year Ended December 31, 
1993. Net revenues increased 10.3% to $319.5 million for 1994 from $289.7 
million for 1993. Excluding the impact of 1994 acquisitions, net revenues 
growth was 7.9%. Net revenues from Covance's combined clinical lines of 
business grew nearly 20%, largely due to growth in the European clinical and 
periapproval and central laboratory operations. Net revenues from Covance's 
preclinical operations was relatively unchanged compared to 1993 due to low 
volume together with pricing pressures in various product line offerings. 
    

   Cost of revenue increased 10.7% to $213.5 million or 66.8% of net revenues 
for 1994 from $192.8 million or 66.5% of net revenues for 1993. 

   
   Overall, selling, general and administrative expense increased 13.8% to 
$48.9 million or 15.3% of net revenues for 1994 from $42.9 million or 14.8% 
of net revenues for 1993. Largely contributing to the increase in selling, 
general and administrative expenses was a separation payment made to 
Covance's then chief executive officer upon his resignation. Exclusive of 
this non-recurring charge, selling, general and administrative expenses were 
relatively unchanged from 1993. 
    

   Depreciation and amortization increased 9.0% to $18.5 million or 5.8% of 
net revenues for 1994 from $17.0 million or 5.9% of net revenues for 1993 as 
the growth in net revenues outpaced the increase in these non-cash charges. 

   Income from operations increased 4.4% to $38.6 million or 12.1% of net 
revenues for 1994 from $37.0 million or 12.8% of net revenues for 1993. 

   Other expense decreased $1.7 million for 1994 to $3.6 million versus $5.3 
million for 1993. This reduction is a result of a net foreign currency 
transaction gain of $0.7 million reported for 1994 versus a net foreign 
currency transaction loss of $0.9 million reported for 1993. 

   
   Covance's effective tax rate for 1994 remained unchanged from 1993 at 
42.6%. 
    

   Net income increased 16.9% or $2.8 million to $19.6 million for 1994 from 
$16.8 million for 1993. 

                                     118 
<PAGE> 

Quarterly Results 

   
   Covance's quarterly operating results are subject to variation, and are 
expected to continue to be subject to variation, as a result of factors such 
as delays in initiating or completing significant preclinical and clinical 
and periapproval trials, termination of preclinical and clinical and 
periapproval trials, acquisitions and exchange rate fluctuations. Delays and 
terminations of studies or trials are often the result of actions taken by 
clients or regulatory authorities and are not typically controllable by 
Covance. Since a large amount of Covance's operating costs are relatively 
fixed while revenue is subject to fluctuation, minor variations in the 
commencement, progress or completion of preclinical and clinical and 
periapproval trials may cause significant variations in quarterly operating 
results. 
    

   
   The following table presents unaudited quarterly operating results of 
Covance for each of the ten most recent fiscal quarters in the period ended 
September 30, 1996. In the opinion of Covance, this information has been 
prepared on the same basis as the Audited Covance Financial Statements and 
reflects all adjustments (consisting only of normal recurring adjustments) 
necessary for a fair presentation of results of operations for those periods. 
This quarterly financial data should be read in conjunction with the Audited 
Covance Financial Statements and notes thereto included elsewhere herein. The 
operating results for any quarter are not necessarily indicative of the 
results to be expected in any future period. See "Risk Factors--Risks 
Relating to Covance--Volatility of Quarterly Operating Results." 
    


<TABLE>
<CAPTION>
                                                                    Quarter Ended 
                 ------------------------------------------------------------------------------------------------------------------
        
                 June 30,  Sept. 30,   Dec. 31,   Mar. 31,    June 30,    Sept. 30,   Dec. 31,    Mar. 31,    June 30,    Sept. 30,
    
                   1994       1994       1994       1995        1995        1995        1995        1996        1996        1996 
                --------------------- ---------- ---------- ------------ ---------------------- ----------- -----------  ----------
    
                                                                   (in thousands) 
<S>             <C>       <C>         <C>        <C>        <C>          <C>        <C>         <C>         <C>          <C>
Net revenues ..  $77,762    $82,904     $84,612    $91,974    $104,813    $106,099    $106,288    $108,697    $121,530     $127,179
  
Operating 
  expenses .....  66,685     73,214      74,967     78,991      95,148      92,428      95,046      94,659     104,195      109,677
   
                  --------   ---------   --------   --------  ----------   ---------   ---------   ---------   ---------   --------
    
Income from 
  operations  ..  11,077      9,690       9,645     12,983       9,665(a)   13,671      11,242      14,038      17,335       17,502
   
Other expense, 
  net ..........     876      1,030         897      1,434       1,644         231       1,176       1,159       1,615        1,550
   
                  --------   ---------   --------   --------  ----------   ---------   ---------   ---------   ---------   --------
    
Pre-tax income 
   .............  10,201      8,660      8,748      11,549       8,021(a)   13,440      10,066      12,879      15,720       15,952
   
Income taxes ..    4,335      3,693       3,732      4,953       3,423       5,771       4,298       5,619       6,861        6,931 
   
Equity investee 
  loss (gain) .      140      --             87         49         149         153          54         (44)         29          (53)
    
                  --------   ---------   --------   --------  ----------   ---------   ---------   ---------   ---------  ----------
   
Net income ..... $ 5,726    $ 4,967     $ 4,929    $ 6,547    $  4,449(a) $  7,516    $  5,714    $  7,304    $  8,830    $   9,074
    
                 ========   =========   ========   ========   ==========   =========   =========   =========   =========  ==========
    
</TABLE>

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

(a) Excluding the impact of the second quarter 1995 restructuring provision 
    totalling $4,616 ($2,770 net of tax), income from operations, pre-tax 
    income and net income were $14,281, $12,637 and $7,219 respectively. 

Liquidity and Capital Resources 

   
   Historically, Covance has participated in the centralized treasury and 
cash management processes of Corning. For domestic operations, cash received 
from operations was generally transferred to Corning on a daily basis. For 
international operations, excess cash was transferred to Corning 
periodically. Cash disbursements for operations were funded as needed from 
Corning. From time to time excess cash balances were maintained at Covance, 
generally for specific cash requirements. 
    

   
     Covance is currently negotiating with several banks concerning the
establishment of the Covance Credit Facility. Covance expects that the Covance
Credit Facility will provide for borrowings of up to $250 million on an
unsecured basis, carry interest at LIBOR plus approximately 37.5 basis points
and mature in five years. Covance intends to borrow under the Covance Credit
Facility before the Covance Spin-Off Distribution to repay Corning and
affiliates for all of its intercompany borrowings and income tax liabilities.
Assuming the borrowing and Covance Spin-Off Distribution both occurred on
September 30, 1996, Covance would borrow approximately $128.2 million for such
purpose. This would result in Covance's debt to equity and debt to capital
ratios being 1.16:1 and 0.54:1, respectively. In addition, the Covance Credit
Facility prohibits Covance from paying cash dividends on the Covance Common
Stock. See "Risk Factors--Risks Relating to Covance--Absence of Dividends;
Restrictions Imposed on
    

   
                                     119 
<PAGE> 
    

   
Dividends for the Covance Credit Facility" and "Description of Certain 
Indebtedness of Covance--Description of Covance Credit Facility." 
    

   
   Covance's primary cash needs on both a short and long-term basis are for 
capital expenditures, expansion of services, possible future acquisitions, 
geographic expansion, working capital and other general corporate purposes. 
In October 1996, Covance acquired CRS Pacamed AG, a Swiss entity providing 
clinical packaging services for a cash payment of $14.4 million. Also in 
October 1996, Covance acquired a new facility to house its clinical 
packaging, clinical and periapproval services and health economics operations 
in Europe for a cash payment of approximately $9.0 million. Furthermore, 
Covance expects to spend approximately $9.0 million on capital expenditures 
between October 1 and December 31, 1996 for maintenance and upgrade of 
existing equipment, outfitting of new facilities and computer equipment and 
software for newly hired employees and to fund an additional payment of 
approximately $6.6 million relating to a 1995 acquisition. Assuming these 
expenditures occur prior to the Covance Spin-Off Distribution, Covance 
estimates that its debt at the Distribution Date will be approximately $135 
million to $145 million. 
    

   
   Covance's management believes that the Covance Credit Facility will 
provide it with sufficient financial flexibility and ready access to cash on 
both a short-term and a long-term basis to fund, as required, capital 
expenditures, potential future acquisitions and other longer-term growth 
opportunities. 
    

   
   During the nine months ended September 30, 1996, Covance's operations 
provided net cash of $14.9 million, a decrease of $17.5 million from the 
corresponding 1995 amount. This reduction is attributable to a larger 
increase in working capital during the first nine months of 1996 as compared 
to the first nine months of 1995. During the year ended December 31, 1995, 
Covance's operations provided net cash of $45.1 million, an increase of $2.2 
million from 1994's level. 
    

   
   Investing activities for the nine months ended September 30, 1996 and the 
years ended December 31, 1995 and 1994 included acquisitions and capital 
spending to expand existing operations and purchase equipment to enhance 
scientific technology capabilities. Funding for new business acquisitions was 
provided through borrowings from Corning. Annually, cash provided by 
operations has historically been sufficient to fund capital expenditures. 
    

   
   Working capital was $47.5 million at September 30, 1996, an increase of 
$29.0 million from the December 31, 1995 level of $18.5 million. This 
increase was attributable to an increase in aggregate accounts receivable and 
unbilled services of $41.6 million or 42.8% to $138.8 million at September 
30, 1996 from $97.2 million at December 31, 1995. Covance has initiated 
collection and contract management efforts to reduce the percentage increase 
in aggregate accounts receivable and unbilled services to a level consistent 
with the increase in net revenues. Covance's ratio of current assets to 
current liabilities was 1.31 at September 30, 1996 and 1.15 at December 31, 
1995. 
    

   
   As described in Note 8 to the Audited Covance Financial Statements, a 
Covance subsidiary, Covance Biotechnology, entered into an operating lease 
arrangement in June 1995 whereby a custom-designed, fully equipped facility 
would be constructed. The lease will commence on the date of completion of 
construction of the facility, which is currently anticipated during the 
fourth quarter of 1996 and requires minimum annual lease payments of 
approximately $5.5 million. See "Risk Factors--Risks Relating to 
Covance--Biomanufacturing-- New Business Venture" and "Business of 
Covance--Services--Biomanufacturing." 
    

   
   In the fourth quarter of 1996, Covance plans to record a one-time charge 
of approximately $27.5 million associated with the Covance Spin-Off 
Distribution. The largest component of the charge will be the cost of 
establishing an employee stock ownership plan. The remainder of the charge is 
expected to consist of the direct costs of the Covance Spin-Off Distribution 
as well as the value of restricted stock awards expected to be granted. 
    

   
   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. Covance intends to account for 
the 
    


                                     120 
<PAGE> 

stock compensation plans pursuant to APB 25 and, as such, will include the 
pro forma disclosures required by SFAS 123 in its financial statements 
beginning in 1996. 

Foreign Currency 

   
   Contracts between Covance's foreign subsidiaries and its clients are 
frequently denominated in currencies other than the applicable subsidiary's 
local currency. Accordingly, payments received for services rendered under 
such contracts are denominated in a currency different than the currency used 
for the payment of the subsidiary's expenses. Therefore, the subsidiary's net 
revenues, expenses and earnings are affected by fluctuations in exchange 
rates. In addition, Covance's combined financial statements are denominated 
in U.S. dollars and, accordingly, changes in exchange rates between the 
applicable foreign currency and the U.S. dollar will affect the translation 
of such subsidiary's financial results into U.S. dollars for purposes of 
reporting Covance's combined financial results. Translation adjustments are 
reported as a separate section of stockholder's equity. To date, such 
adjustments have not been material to Covance's financial statements. 
    


Taxes 

   
   Since Covance conducts operations on a global basis, Covance's effective 
tax rate has and will continue to depend upon the geographic distribution of 
its pretax earnings among locations with varying tax rates. Covance's profits 
are further impacted by changes in the tax rates of the various 
jurisdictions. In particular, as the geographic mix of Covance's pre-tax 
earnings among various tax jurisdictions changes, Covance's effective tax 
rate may vary from period to period. See Note 5 to the Audited Covance 
Financial Statements. 
    


Inflation 

   
   While most of Covance's net revenues are earned under contracts, the 
long-term contracts (those in excess of one year) generally include an 
inflation or cost of living adjustment for the portion of the services to be 
performed beyond one year from the contract date. As a result Covance 
believes that the effects of inflation generally do not have a material 
adverse effect on its operations or financial condition. 
    


                                     121 
<PAGE> 

   
                             BUSINESS OF COVANCE 
    


General 

   
   Covance is a leading CRO providing a wide range of integrated product 
development services on a worldwide basis to the biotechnology, 
pharmaceutical and medical device industries. In addition, and to a lesser 
extent, Covance provides services such as health economics for managed care 
organizations, hospitals and health care provider networks and early 
development and laboratory testing services to the chemical, agrochemical and 
food industries. The foregoing services can be broadly classified into six 
lines of business: preclinical, biomanufacturing, clinical and periapproval, 
central laboratory, clinical packaging and health economics. These six lines 
of business can be further categorized as non-clinical (preclinical and 
biomanufacturing) and clinical (clinical and periapproval, central 
laboratory, clinical packaging and health economics). Covance believes it is 
one of the largest biopharmaceutical CROs, based on estimated 1995 annual net 
revenue, and one of a few that are capable of providing comprehensive global 
product development services. Covance offers its clients high quality 
services designed to reduce product development time, allowing them to 
introduce their products into the marketplace faster and, thus, maximize the 
period of marketing exclusivity and monetary return on their investments. 
Additionally, Covance's comprehensive services and broad experience provide 
clients with a variable cost alternative to fixed cost internal development 
capabilities. 
    


History 

   
   The businesses that today constitute Covance were acquired by Corning as 
part of a strategy to create a global, integrated and full service product 
development company. In 1987 Corning acquired Hazleton Corporation (recently 
known as Corning Hazleton and now known as Covance Laboratories), owner of 
leading preclinical drug safety assessment laboratories and Phase I clinical 
research units. In 1989 Corning added Phase II and Phase III clinical trials 
expertise with the acquisition of a leading, global clinical CRO, G.H. 
Besselaar Associates (recently known as Corning Besselaar and now known as 
Covance Clinical and Periapproval Services), and expanded its clinical trials 
expertise in 1990 with the purchase of PACT Inc. (recently known as Corning 
PACT and now known as Covance Clinical and Periapproval Services), a leading 
periapproval studies company. In 1991 Corning purchased SciCor Inc. (recently 
known as Corning SciCor and now known as Covance Central Laboratories), a 
clinical laboratory dedicated to the drug development process. Corning 
expanded its pharmaceutical laboratory capabilities in 1992 with the creation 
in Switzerland of a jointly owned company, SciCor S.A., and, through Covance, 
acquired 100% of this company in 1994. Focusing on innovative ways to 
accelerate the drug development cycle, Covance acquired in late 1994 a 
significant minority equity position in Bio-Imaging, which uses proprietary 
imaging technology to quantify the diagnostic and therapeutic effectiveness 
of experimental drugs and devices. Covance expanded its offering of 
value-added development services in 1995 with the acquisition of National 
Packaging Systems, Inc. (recently known as Corning National Packaging, Inc. 
and now known as Covance Pharmaceutical Packaging Services), a leading 
clinical packaging company. In 1995 Covance also formed Covance 
Biotechnology, a majority-owned company which will enable Covance to engage 
in biomanufacturing. In recognition of the rapid changes in the 
biopharmaceutical industry's marketplace, particularly the need for the 
industry to further demonstrate the benefits and cost effectiveness of their 
products to payors, Covance purchased in early 1996 HTA (now known as Covance 
Health Economics and Outcomes Services), a leading health economics company 
serving at the date of acquisition over 100 clients. In October 1996, Covance 
expanded its clinical packaging capabilities to Europe with the purchase of 
Swiss based CRS Pacamed AG (now known as Covance Pharmaceutical Packaging 
Services). In addition, Covance acquired an 81,000 sq. ft. facility in 
Horsham, England, which will be used, among other things, to provide clinical 
packaging services in Europe. 
    


The New Drug Development Process--Overview 

   Before a new drug may be marketed to the public, it must undergo extensive 
testing and regulatory review to determine that the drug is both safe and 
effective for its intended purpose. The developmental process and typical 
corresponding time periods are as follows: 

   Preclinical Research (6 months to 3 years). In vitro ("test tube") and in 
vivo ("animal") studies are conducted to establish the basic pharmacokinetic 
effect and safety of a drug including the toxicity of the drug over a wide 
range of doses. Initially, acute toxicology studies are conducted. In the 
United States, if results warrant continuing development of the drug, the 
manufacturer (also known as the "sponsor") will file an Investigational New 
Drug Application ("IND"), whereupon the FDA may grant permission to begin 
human trials (also known as "clinical trials"). 

                                     122 
<PAGE> 

   Preclinical studies may continue after the start of clinical trials to 
determine the longer term effects of a product. For instance, a preclinical 
study might focus on the possible side effects, metabolism and/or 
pharmacokinetic disposition of a drug. 

   Clinical Trials (3.5 to 6 years). 
   (bullet) Phase I (6 months to 1 year). This phase involves the initial 
            basic safety and pharmacology testing in approximately 20 to 100 
            human subjects, usually healthy volunteers in a closely monitored 
            setting, including studies to determine the side effect profile 
            of the drug, how the drug works, how it is affected by other 
            drugs, where it goes in the body, how long it remains active, and 
            how it is broken down and eliminated from the body. 

   (bullet) Phase II (1 to 2 years). This phase involves basic efficacy 
            (effectiveness) and dose-range testing in approximately 100 to 
            400 carefully selected patients suffering from the disease or 
            condition under study to help determine the best effective dose, 
            confirm that the drug works as expected, and provide additional 
            safety data. The trials are typically well controlled and usually 
            involve a placebo, also known as a "sugar pill." A placebo is an 
            identical tablet or solution which lacks the active substance 
            under investigation. 

   (bullet) Phase III (2 to 3 years). This phase involves efficacy and safety 
            studies in broader populations of hundreds or thousands of 
            patients at many investigational sites (hospitals and clinics) 
            and may involve placebo- controlled trials, in which the new drug 
            is compared with a placebo; studies comparing the new drug with 
            one or more drugs with established safety and efficacy profiles 
            in the same therapeutic category; or studies where there is no 
            comparison to a placebo or another drug ("uncontrolled" trials). 
            Generally, Phase III studies are intended to provide additional 
            information on drug safety and efficacy, an evaluation of the 
            risk-benefit relationship for the drug, and information for the 
            adequate labeling of the product. 

   NDA Preparation and Submission. Upon completion of Phase III trials, the 
sponsor or CRO assembles the tabulated and statistically analyzed data from 
all phases of development into a single large document, the New Drug 
Application ("NDA"), which comprises, on average, approximately 100,000 
pages. 

   FDA Review and Approval (1 to 2 years). At this stage, the FDA will 
scrutinize data from all phases of development to confirm that the sponsor 
has complied with regulations and that the drug is safe and effective for the 
specific use (or "indication") under study. Product labeling is also approved 
at this stage, which serves as a guideline to the sponsor about how its 
product can be promoted in the marketplace. 

   Treatment Investigational New Drug (May span late Phase II, Phase III, and 
FDA review). When results from Phase II or Phase III show special promise in 
the treatment of a serious condition for which existing therapeutic options 
are limited or of minimal value, the FDA may allow the manufacturer to make 
the new drug available to a larger number of patients through the regulated 
mechanism of a treatment investigational new drug ("TIND") application. 
Although less scientifically rigorous than a controlled clinical trial, a 
TIND may enroll and collect primarily safety data from thousands of patients. 
See "--Services--Clinical and Periapproval Services--Treatment 
Investigational New Drug Applications." 

   Post-Marketing Surveillance and Phase IV Studies (Periapproval). Federal 
regulation requires the sponsor to collect and periodically report to the FDA 
additional safety and efficacy data on the drug for as long as the sponsor 
markets the drug (post-marketing surveillance). If the drug is marketed 
outside the United States, these reports must include data from all countries 
in which the drug is sold. Additional studies (Phase IV) may be undertaken 
after initial approval to find new uses for the drug or to test new dosage 
formulations. All of these studies are types of "periapproval" studies. See 
"--Services--Clinical and Periapproval Services--Other Periapproval Studies." 

   Similar extensive testing and regulatory reviews are required in Europe 
and some Asian countries to determine that a new drug is safe and effective 
for its intended purpose before it can be marketed to the public. 

CRO Industry Overview 

   The CRO industry provides independent product development services to the 
pharmaceutical, biotechnology and medical device industries, and, in general, 
CROs derive substantially all of their revenue from the research and 
development expenditures of these industries. Today, there are a few 
full-service companies. Full-service CROs design and manage preclinical and 
clinical and periapproval studies and trials, provide health economic 
services, 

                                     123 
<PAGE> 

and provide packaging and central laboratory services and other services 
required to develop and market new products in accordance with applicable 
government regulations in the jurisdictions where the services are provided, 
including the regulations of the FDA in the United States. 

   
   The CRO industry is highly fragmented, with hundreds of small, 
limited-service providers, several medium- sized CROs and a few full service 
CROs with global operations. Covance believes there are currently only 
approximately 20 CROs with revenues in excess of $30 million and only four 
with revenues in excess of $100 million. As a general matter, the clinical 
CRO industry is not capital intensive and the financial costs of entry into 
the industry are relatively low. Although there are few barriers to entry for 
small, limited-service providers, Covance believes that there are significant 
barriers to becoming a full service CRO with global operations. These 
barriers include the cost, infrastructure and experience necessary to own and 
manage multiple international offices to serve the global demands of clients; 
develop sophisticated drug development processes; develop broad therapeutic 
expertise; conduct trials that accelerate the transition from preclinical to 
clinical trials; manage complex clinical trials involving large patient 
populations in numerous countries simultaneously; provide health economic 
services; and prepare multinational regulatory submissions. Capital 
requirements, however, are relatively high for CROs that provide 
sophisticated preclinical and central laboratory and data management services 
and biomanufacturing services. 
    


Trends Affecting the CRO Industry 

   
   In 1994 worldwide expenditures on research and development by 
pharmaceutical and biotechnology companies are estimated to have been $30 
billion, of which Covance estimates $20 billion was spent on drug development 
activities of the type offered by the CRO industry. Covance believes that 
approximately $3 billion of such spending was outsourced to CROs primarily 
for preclinical testing and clinical development. 
    

   
   Covance believes that the outsourcing of drug development activities by 
pharmaceutical and biotechnology companies has been increasing and will 
continue to increase for the following reasons: 
    

   
   Cost Containment Pressures. Market forces and governmental initiatives 
have placed significant downward pressure on pharmaceutical and biotechnology 
companies' drug prices. Pressures on profit margins have arisen from 
increased competition as a result of patent expiration, market acceptance of 
generic drugs, the need for truly innovative rather than "me too" drugs and 
governmental and private efforts to reduce health care costs, especially in 
the United States. In addition, private managed care organizations are 
beginning to limit the selection of drugs that affiliated physicians may 
prescribe, thereby further increasing competition among pharmaceutical and 
biotechnology companies. Covance believes that the pharmaceutical industry is 
responding to these pressures by downsizing its research and development 
infrastructure and converting the fixed costs of maintaining such 
infrastructure to variable costs by outsourcing drug development activities 
to CROs. The downsizing of development capabilities also creates demand for 
CROs as biopharmaceutical companies experience internal development resource 
shortages when a large number of compounds emerge from the research process 
and need to undergo development. Moreover, many of these companies are 
attempting to decrease the new drug development cycle by using CROs, which 
may have greater expertise in a therapeutic area, while offering greater 
efficiency at a lower cost. Some large pharmaceutical and biotechnology 
companies now contract with large full service CROs under a single multi-year 
master agreement which allows the company to select the CRO for a broader 
array of drug development services instead of separately contracting 
individual studies or specific phases to several different CROs. The 
establishment of a master agreement itself can expedite the development 
process by avoiding the delay inherent in negotiating and reviewing separate 
agreements for each new study. Accordingly, once selected by a pharmaceutical 
company, the CRO can commence work promptly. Covance has executed a number of 
master agreements with large pharmaceutical companies and believes that it is 
in an advantageous position to enter into such agreements with additional 
pharmaceutical companies. 
    

   Marketplace Globalization. Pharmaceutical and biotechnology companies are 
increasingly attempting to expand the market for new drugs by pursuing 
regulatory approvals in multiple countries simultaneously rather than 
sequentially as they have in the past. Expanding the market for a drug is 
particularly important to the industry because of limited patent lives and 
the high development costs of new drugs. To gain access to the global 
marketplace, pharmaceutical and biotechnology companies are increasingly 
outsourcing development work to CROs that are deployed in key geographical 
markets worldwide and that are capable of coordinating concurrent regulatory 
approvals. In addition, these companies are increasingly using CROs that have 
the systems in place to 

                                     124 
<PAGE> 

   
compile and analyze large volumes of complex data from multinational clinical 
trials and prepare regulatory submissions simultaneously on a multinational 
basis. Pharmaceutical companies also are outsourcing an increasing number of 
large scale Phase III-IV studies involving thousands of patients which are 
often simultaneously conducted in multiple jurisdictions including Europe, 
North and South America, Australia and Asia. Covance believes that CROs with 
a global presence will continue to benefit from these trends. 
    

   
   Revenue Enhancement Through Faster Drug Development. Pharmaceutical and 
biotechnology companies are increasingly attempting to reduce the time 
required to bring new drugs to market. Reducing the time it takes to market a 
new drug can reduce costs and accelerate revenue realization. Currently, 
successfully developing a new drug takes approximately 8 to 12 years, which 
generally represents a significant portion of the drug's 15 to 20 year period 
of protection under most patent laws internationally (17 years in the United 
States). Industry data suggest that it generally costs between $291 million 
and $597 million to discover and develop a drug in the United States. 
Accordingly, pharmaceutical and biotechnology companies are increasingly 
examining the drug development process itself to determine ways to reduce the 
time required to bring a new drug to market. As part of this evaluation, some 
companies are establishing time goals for how long the process should take. 
Covance believes that CROs, by providing specialized development services, 
are often able to perform the needed services with a higher level of 
expertise or specialization, and more quickly, than a pharmaceutical or 
biotechnology company could perform such services internally. In addition, 
Covance believes that CROs with advanced global drug development processes 
will be more attractive to pharmaceutical and biotechnology companies. 
    

   
   Consolidation in the Pharmaceutical Industry. The pharmaceutical industry 
is consolidating as pharmaceutical companies seek to obtain cost reduction 
synergies through business combinations. Recent consolidations include some 
of the largest multinational pharmaceutical companies in the world, such as 
American Home Products-American Cyanamid Company, Glaxo-Wellcome, 
Roche-Syntex, and Pharmacia and Upjohn. Ciba-Geigy and Sandoz have also 
announced their intention to merge and form a new company, Novartis. Once 
consolidated, many pharmaceutical companies aggressively manage costs by 
reducing jobs, decentralizing the research and development process, and 
outsourcing to CROs in an effort to reduce the fixed costs associated with 
internal drug development. Covance believes that full service global CROs 
will benefit from this trend. 
    

   Increasingly Stringent Regulation; Need for Capabilities. Increasingly 
stringent regulatory requirements throughout the world and their 
standardization have increased the need for broader, global regulatory 
expertise. As regulatory requirements become more stringent and the need for 
sophisticated capabilities becomes more important, including regulatory 
services and advice and global drug development processes, the pharmaceutical 
and biotechnology industries are outsourcing to global CROs to take advantage 
of their capabilities and geographic presence. 

   
   In addition to increasingly stringent regulatory requirements, Covance 
believes that recent efforts to develop global harmonized regulatory 
standards will increase the importance of advanced global drug development 
processes among CROs. In recent years, the FDA and the corresponding 
regulatory agencies of Canada, Japan and Europe have had substantive 
discussions for the purpose of developing harmonized standards for both the 
conduct of preclinical and clinical studies and the format and content of 
applications for new drug approval. Further, the FDA encourages the use of 
computer assisted filings in an effort to expedite the approval process. 
Covance believes that CROs which stay abreast of the changing regulatory 
requirements in multiple international jurisdictions and which are able to 
rapidly improve their drug development processes will have a competitive 
advantage. 
    

   
   Therapeutic Focus. Covance believes that the economics of the marketplace 
require research and development expenditures as biopharmaceutical companies 
become focused on innovative new products, including drugs for an aging 
population and drugs for the treatment of chronic disorders and 
life-threatening conditions such as cancer, heart disease and infectious 
diseases, including AIDS. The development of therapies for chronic disorders, 
such as Alzheimer's disease or arthritis, requires complex clinical trials to 
demonstrate the therapy's effectiveness and to determine whether the drug 
causes any long-term side effects. Covance believes that CROs with the 
requisite therapeutic experience and the ability to manage complex trials 
will present an attractive development alternative for biopharmaceutical 
companies. 
    

   Biotechnology Industry Growth. The U.S. biotechnology industry has grown 
rapidly over the last 10 years and is introducing new therapies which require 
regulatory approval. Many biotechnology companies do not have the necessary 
internal resources and experience (capital, equipment or people) to conduct 
preclinical studies and 

                                     125 
<PAGE> 

   
clinical trials. Accordingly, many biotechnology companies have chosen to 
outsource to CROs rather than expend significant time and resources to 
develop an internal preclinical or clinical development or biomanufacturing 
capability. In addition, Covance believes that many biotechnology companies 
are turning to certain CROs for sophisticated regulatory expertise and will 
also outsource manufacturing of their experimental compounds during the 
preclinical and clinical stages. Moreover, the biotechnology industry is 
rapidly expanding into Europe, and Covance believes that significant growth 
opportunities exist for CROs with an international presence. Further, Covance 
believes that the biotechnology companies will enter into single multi-year 
master agreements with CROs, as pharmaceutical companies have done. Covance 
has been serving one of the largest biotechnology companies for over a year 
pursuant to such an agreement and believes that it is in an advantageous 
position to enter into additional master agreements with other biotechnology 
companies. 
    

   
   Consolidation in the CRO Industry. As a result of competitive pressures 
and the trend towards larger and more global studies, the CRO industry is 
consolidating. For instance, two of the largest CROs, Applied Bioscience 
International Inc. ("APBI") and Pharmaceutical Product Development Inc. 
("PPD"), recently completed their merger. Such mergers and acquisitions have 
resulted in the emergence of a few large, full service CROs that have the 
capital, technical, financial and human resources to conduct all phases of 
preclinical and clinical trials on behalf of pharmaceutical and biotechnology 
companies. As pharmaceutical and biotechnology companies increasingly 
outsource development, they may turn to large CROs that provide a broad range 
of preclinical and clinical services, while at the same time they may also 
limit the number of CROs they choose to provide such services. Covance 
believes that this trend will further concentrate market share among large 
CROs with a reputation for quality, efficiency, flexibility, responsiveness 
and overall development experience and expertise and that Covance will 
benefit from this trend. 
    


Business Strategy 

   
   Covance believes it is one of the largest CROs serving the biotechnology 
and pharmaceutical industries, based on estimated 1995 net revenues, and has 
a focused strategy to provide high quality, cost effective, integrated, 
comprehensive and innovative services to assist its pharmaceutical and 
biotechnology clients develop, produce, obtain approval for and enhance the 
commercial success of their new therapeutic products worldwide. Covance has 
and will continue to execute this strategy by: hiring and retaining the best 
people available in terms of knowledge, ability and customer-focused 
attitude; continually improving its existing services and creating new 
services that respond to the demands of the biotechnology and pharmaceutical 
industries; continually improving its drug development processes; and 
selectively expanding into new locations. Covance expects that these 
improvements or additions will occur as the result of internal expansion and 
development activity, through continued linking of Covance's various services 
and through strategic acquisitions. 
    

   
   Personnel. Covance is guided by a senior management team of experts in 
drug development who in many cases have had previous careers in the relevant 
industries served by Covance, providing them insight into what Covance's 
clients need and expect from a full service CRO. Moreover, Covance has a 
performance management system that involves an interactive annual objective 
process, career development plan and annual review process designed to focus 
on both individual strengths and opportunities for growth. In general, 
Covance seeks to retain and hire the best-qualified individuals for all 
aspects of its operations, emphasizing the need for experience and a customer 
focus. Covance provides its employees with the necessary resources for 
achieving these goals, including information technology and internal and 
external training programs to enable them to more effectively perform their 
jobs. 
    

   
   Services. Covance is a full service CRO that provides a broad array of 
product development services to the biotechnology, pharmaceutical and medical 
device industries. In addition, and to a lesser extent, Covance provides 
services such as health economics for managed care organizations, hospitals 
and health care provider networks and early development and laboratory 
testing services to the chemical, agrochemical and food industries. Covance 
believes that CROs capable of offering a full range of drug development and 
manufacturing services are better able to compete for three reasons: (1) a 
full range of services provides a client with the choice of using just one 
provider to secure all of the client's development needs; (2) an integrated 
provider of these services can provide economies of scale and accelerate the 
development of the client's product through more comprehensive planning of 
the development process; and (3) early stage development provides the CRO 
with access to the client sooner in the development cycle and may promote the 
client's use of later stage development services. 
    


                                     126 
<PAGE> 

   
   As part of its strategy, Covance both continually improves its existing 
services and endeavors to create new ones. Covance has implemented a total 
quality management system throughout its operations which assists the company 
in its goal of producing error-free services on time and within the client's 
budget. This management system is overseen by a quality team comprised of 
Covance's most senior executives, including its chief executive officer. This 
team meets regularly to set quality goals, to determine whether such goals 
are being met and to discuss initiatives that should be implemented to 
improve the quality of its services. As an important supplement to Covance's 
quality management system, certain of Covance's U.S. and European 
subsidiaries have received ISO 9000 and 9001 certifications based on quality 
standards established by the International Organization for Standardization. 
The ISO 9000 standards define the international requirements for creating a 
quality assurance system that will result in providing consistent service. 
    

   
   An example of Covance's efforts to continuously improve its existing 
services is the Expanded Access Program ("EAP"), one of Covance's 
periapproval offerings. EAP is a mechanism that allows innovative new 
therapies for life threatening diseases to be given to expanded populations 
prior to FDA approval pursuant to a TIND. See "-- Services--Clinical and 
Periapproval Services--Treatment Investigational New Drug Applications." In 
addition to improving its existing services, Covance also focuses on 
providing its clients new market oriented, value-added services. Some of 
these involve integrated services that rely on multidisciplinary teams drawn 
from various Covance operating units or divisions. For instance, Covance is 
duplicating in the United States a Strategic Product Development ("SPD") 
program developed in Europe that has successfully reduced the estimated time 
from preclinical testing to the first human studies. See 
"--Services--Preclinical Services." 
    

   
   Covance's new service offerings arise as a result of both "home-grown" 
activities and through strategic acquisitions. With respect to the former, in 
addition to SPD, Covance has invested in the creation of a multi-use 
biomanufacturing facility, Covance Biotechnology. See 
"--Services--Biomanufacturing." With respect to the latter, Covance added 
domestic clinical packaging capabilities through the acquisition of National 
Packaging Systems, Inc. in January 1995, European clinical packaging 
capabilities through the acquisition of CRS Pacamed in October 1996 and 
enhanced its health economics services by acquiring HTA in March 1996. 
Covance expects to continue developing services internally and making 
strategic acquisitions that are complementary to its existing services and 
that will expand its ability to serve its clients. 
    

   
   Streamlining the Drug Development Process. Covance believes that when 
selecting CROs to conduct trials the biopharmaceutical industry will become 
more demanding with respect to factors such as containing costs, reducing 
testing time frames and being able to conduct trials on a global basis. For 
CROs to become more efficient, with the resultant savings in time for 
clients, the drug development process itself will undergo continuous change. 
In recognition of this, Covance has created a dedicated team focused 
exclusively on redesigning the drug development process with the objective of 
reducing the time required to develop a new compound. The mandate of this 
team is to examine every significant process, system and information 
technology used in product development with the objective of applying the 
considerable experience and technical resources available throughout Covance. 
Currently, Covance has over 300 information systems professionals working in 
12 regional information system centers (nine in the United States and three 
in Europe) and nine satellite centers (five in the United States and four in 
Europe). All of Covance's employees at its 33 locations (both domestic and 
international) and miniframe computers and thousands of desktop computers are 
connected by a wide area network that provides global access to the expertise 
and technologies resident in the regional information system centers. These 
systems also support Covance's ability to provide integrated services and 
connect Covance to its clients. For instance, Covance's Information Access 
System permits clients to obtain real time access to their study data, and 
its drug management system based on Integrated Voice Response technology 
allows clients to more efficiently manage the distribution of their 
experimental compounds to investigational sites. See "--Services--Clinical 
and Periapproval Services-- Clinical Development Technologies." 
    

   
   In examining ways to improve the drug developmental process, Covance's 
information technology strategy is to capitalize on its existing 
heterogeneous, flexible and proprietary computer systems, which are 
time-proven through thousands of trials, and to both customize them where 
appropriate for particular client needs and incorporate new systems and 
technologies to meet changing demands in a timely and cost effective manner. 
    

   
   Geographic Expansion. Covance believes that it will become increasingly 
important to provide its full range of drug research and development services 
in all major and developing biotechnology and pharmaceutical markets, 
especially given industry trends to conduct research on new drugs outside the 
United States first and to conduct 
    


                                     127 
<PAGE> 

   
clinical trials in multiple countries simultaneously. Covance has a tradition 
of serving its clients throughout the world. Through its offices, regional 
monitoring sites, laboratories and manufacturing sites in over 33 locations 
in 15 different countries and field work in 11 other countries, Covance 
believes it is a leader among CROs in its ability to deliver services 
globally. Currently, approximately 30% of Covance's 5,000 - person work force 
is based outside of the United States. 
    

   
   Covance will continue its strategy of establishing new or enhancing 
existing operations in significant biotechnology and pharmaceutical markets. 
Covance expects this will occur as the result of internal growth and through 
strategic acquisitions. For instance, Covance opened its Singapore office in 
April 1996. Singapore will serve as Covance's center for conducting clinical 
trials in Asia, a region that Covance believes will be increasingly important 
for the research, development and therapeutic use of drugs. Given the need in 
Asia to set processes and standards for conduct of clinical trials that meet 
international standards, and the Singapore government's desire to be the 
Asian center for human drug development and research, Covance is 
collaborating with the Singapore National Science and Technology Board 
concerning the Singapore government's initiative to form the Asia Pacific 
Economic Cooperation coordinating center for Good Clinical Practice. Covance 
is also discussing with its clients opening new offices in Latin America and 
Canada to serve their growing need to conduct drug development studies in 
these areas. 
    


Services 

   
   Covance is a leading CRO providing a wide range of integrated product 
development services on a worldwide basis to the biotechnology, 
pharmaceutical and medical device industries. In addition, and to a lesser 
extent, Covance provides services such as health economics for managed care 
organizations, hospitals and health care provider networks and early 
development and laboratory testing services to the chemical, agrochemical and 
food industries. The foregoing services constitute six lines of business: 
preclinical, biomanufacturing, clinical and periapproval, central laboratory, 
clinical packaging and health economics. 
    

   
Preclinical Services 
   Covance believes that it is one of the largest independent providers of 
preclinical drug safety assessment and analytical chemistry services. With 
four major laboratories, employing over 1,900 people, located in Madison, 
Wisconsin, Vienna, Virginia, Harrogate, England, and Munster, Germany and 
with an administrative office in Tokyo, Japan, Covance conducted 
approximately 1,000 toxicology studies in 1995. The preclinical services 
offered are wide-ranging, including in vivo toxicology studies (such as 
acute, subchronic and carcinogenicity studies), genetic toxicology studies 
(such as in vitro cytotoxicity, cytogenetics and gene mutation studies and 
transgenic mouse models) and chemistry services (such as in vitro metabolism, 
pharmacokinetics and bioequivalence studies). 
    

   
   The preclinical area has also been a source of innovation by introducing 
new technologies for client access to data, electronic animal identification, 
multimedia study reports and data tables and in vivo and in vitro measures of 
induced cell proliferation. Covance's preclinical group also works closely 
with its Phase I and II groups to minimize product development time and to 
provide clients with early data on the safety and efficacy of new molecules. 
This data allows clients to make a decision about whether to continue, cease 
or modify their development program. See "--Business Strategy--Services." 
    

   
   As part of its preclinical services, Covance is duplicating in the United 
States an SPD program developed in Europe that has successfully reduced the 
time from preclinical testing to the first human studies. SPD involves an 
integrated process and team drawn from Covance's preclinical and Phase I and 
II areas. In an SPD program, the compound is researched from initial 
preclinical evaluation through its first dosing in humans, including the 
filing and attainment of the IND. Specific elements of the process include 
formulation and dose delivery testing, product metabolism, chemistry, 
pharmacology, toxicology and safety testing. Through clearly defined 
objectives, plans, timetables, and coordination with clients, Covance has 
used SPD in the United Kingdom (where INDs are not required to commence Phase 
I clinical trials) on over 10 compounds and has averaged just six months to 
nine months from the start of preclinical testing to the start of a Phase I 
clinical trial. In one example, the entire preclinical testing phase was 
completed in 41/2 months with the Phase I clinical trial concluding just five 
months thereafter. The preclinical testing phase in the United States 
typically takes six months to three years and Phase I studies typically take 
six months to one year. Because INDs are required in the United States to be 
filed before human clinical trials start, it is uncertain whether SPD trial 
completion speeds in the United States will be as swift as in the United 
Kingdom, but Covance believes that an SPD program will reduce the drug 
development time in the United States. 
    


                                     128 
<PAGE> 

   
   Covance is also one of the largest providers of animals, including 
purpose-bred animals, for biomedical research. These animals are used by 
biopharmaceutical companies, university research centers and CROs, like 
Covance, as part of their preclinical in vivo safety and efficacy testing. 
Often, these preclinical studies require animals which are free of genetic 
anomalies to assure that results from the testing are accurate. In addition, 
animals will often need to be free of all pathogens, again, to ensure the 
integrity of the testing results. Through a variety of processes, technology 
and specifically constructed facilities, Covance is able to provide both 
purpose-bred and specific pathogen free animals that will meet the clients' 
rigorous control requirements. Covance is also a provider of custom 
polyclonal and monoclonal antibody services and recently opened an 
18,000-square-foot state-of-the-art antisera production facility that 
complies with both GMP and GLP. Finally, although Covance's animal breeding 
facilities maintain procedures in accordance with applicable government 
regulations and company policies for the quarantine and handling of imported 
animals, including primates, there is a risk that these animals may be 
infected with diseases that may be harmful and even lethal to themselves and 
humans. In 1996 Covance, with the approval of the Texas Department of Health 
and the Centers for Disease Control, destroyed a shipment of monkeys from the 
Philippines because some had been infected with a sub-strain of the 
Ebola-Reston virus, which is lethal to monkeys. 
    

   
   Outside the area of biopharmaceutical development, Covance also provides 
early development and laboratory testing services to the chemical, 
agrochemical and food industries. For instance, Covance offers a complete 
range of services to agrochemical manufacturers to determine the potential 
risk to humans, animals and the environment from plant protection products. 
Further, Covance offers a broad range of services to the food industries 
including nutritional analysis and nutritional content fact labels. 
    

   
Biomanufacturing 
   Covance holds a majority interest in Covance Biotechnology, a company 
formed in 1995 to manufacture peptides and recombinant proteins for 
biotechnology and pharmaceutical clients in accordance with GMP for 
preclinical and clinical trials as well as for commercial sales. Covance 
Biotechnology's services will include process development services, GMP 
manufacturing by microbial and mammalian cell expression, laboratory testing, 
quality assurance and quality control and regulatory affairs assistance. 
Covance Biotechnology expects to lease and commence operations by the end of 
1996 in a biomanufacturing facility located in Research Triangle Park, North 
Carolina. Covance Biotechnology will be able to process multiple compounds 
for multiple clients simultaneously and on a scale, Covance believes, greater 
than any other contract bioprocessor. Covance Biotechnology provides an 
alternative for clients who might otherwise need to design, finance and 
construct their own facility to manufacture a compound for preclinical or 
clinical trials or commercial sale. By hiring Covance Biotechnology, a client 
can avoid the expense, time delay and risk of making additional investments 
for a compound whose safety, efficacy and commercial opportunities are 
uncertain. This allows clients to preserve their capital and lower their 
risks. See "Risk Factors--Risk Factors Relating to Covance--Covance 
Biotechnology--New Business Venture." 
    

   
   Outsourced biomanufacturing is a relatively new industry and as such 
companies in this industry are subject to all of the risks inherent in a new 
or emerging industry, including changes in the regulatory regime, an absence 
of an established earnings history, the availability of adequately trained 
management and employees, and the potential for significant client 
concentration. In an attempt to enter this industry at an early stage of its 
development, Covance Biotechnology has hired personnel from the 
biopharmaceutical industry experienced in biomanufacturing. 
    

   
   As a start-up venture, Covance Biotechnology is subject to the risks 
inherent in the establishment of a new business enterprise, including, among 
others, unanticipated construction delays, operational and manufacturing 
problems, additional and unforeseen costs and expenses and an inability to 
attract and retain clients. There can be no assurance that, even after the 
expenditure of substantial funds and efforts, Covance Biotechnology will be 
able to market successfully its biomanufacturing services. Covance 
Biotechnology's biomanufacturing facility is still under construction and is 
expected to be "mechanically" completed during the fourth quarter of 1996. 
Mechanical completion occurs when all structural aspects of the facility are 
complete, all mechanical equipment and systems are installed and a 
certificate of occupancy has been issued by an applicable governmental 
authority. After mechanical completion, the facility must be "validated," 
which means that the various equipment, systems and procedures that are 
required to manufacture a biologic must be thoroughly tested and reviewed. 
Although Covance Biotechnology has submitted proposals to a number of 
prospective biopharmaceutical clients, it has been awarded only one contract, 
but has signed a number of letters of intent for the provision of services. 
For the period ended December 31, 1995, Covance Biotechnology reported a net 
loss of approximately $1.9 million, and for the nine months ended September 
30, 1996, Covance Biotechnology reported a net loss of approximately $2.3 
million. 
    


                                     129 
<PAGE> 

   
   The biomanufacturing facility is being financed through several tax 
retention operating leases provided by the Bank and, during the construction 
phase, is being leased by the General Contractor. The leases expire 10 years 
from the date of mechanical completion of the facility. The annual minimum 
lease payments are currently estimated at $5.5 million. At the expiration of 
the lease term Covance Biotechnology is liable for the unamortized balance of 
the cost of the facility, currently estimated to be approximately $37 
million. Covance Biotechnology may also choose to purchase the facility at 
specific dates over the 10 year period. Using current estimates, the purchase 
price would be approximately $54 million at the end of the first year, 
decreasing on an amortizing basis to approximately $37 million at the end of 
the tenth year. 
    

   
   Covance owns 76% of the voting capital stock of Covance Biotechnology in 
the form of convertible preferred stock (the "Covance Biotechnology Preferred 
Stock"). The remaining 24% of Covance Biotechnology's capital stock is owned 
by certain minority stockholders (the "Minority Stockholders") in the form of 
common stock. Covance's ownership in Covance Biotechnology could be reduced 
to as much as 68% of the voting capital stock if certain options granted to 
key Covance Biotechnology executives to acquire Covance Biotechnology common 
stock owned by Covance are exercised in full. The Covance Biotechnology 
Preferred Stock held by Covance entitles Covance to a 12% annual cumulative 
dividend. No dividend has been paid on the Covance Biotechnology Preferred 
Stock. Dividends on the Covance Biotechnology Preferred Stock become payable 
only if Covance Biotechnology has profits and to the extent that the Covance 
Biotechnology board of directors declares the payment of dividends. Covance 
currently does not anticipate the receipt of any such dividend until and 
unless Covance Biotechnology becomes profitable. 
    

   
   Covance Biotechnology, Covance and the Minority Stockholders entered into 
a capital contribution and shareholder agreement (the "Agreement"), which, 
among other things, limits the persons to whom the Minority Stockholders may 
transfer their Covance Biotechnology common stock, grants Covance a right of 
first refusal with respect to the transfer of Covance Biotechnology common 
stock held by the Minority Stockholders, grants Covance the right to purchase 
up to one third of the Covance Biotechnology common stock held by the 
Minority Stockholders on each of the second, third and fourth anniversary of 
the completion of the construction of the facility or, if Covance chooses not 
to exercise this right, obligates Covance Biotechnology to use its best 
efforts to arrange for the sale of such shares on certain specified terms, 
and provides for the Minority Stockholders the right to nominate up to two 
directors of Covance Biotechnology to the extent that the Minority 
Stockholders own, in the aggregate, greater than 50% of their initial equity 
position in Covance Biotechnology. The Agreement also contains certain 
provisions which restrict the circumstances and set forth the terms and 
conditions upon which Covance may provide additional capital or funds to 
Covance Biotechnology. Covance has no affirmative obligation to provide 
further funds or financial assistance of any kind to Covance Biotechnology. 
    

   
Clinical and Periapproval Services 
   Covance offers a comprehensive range of clinical trial services, including 
Phase I through III clinical studies and periapproval studies including Phase 
IIIb and Phase IV clinical studies, TINDs, post-marketing surveillance 
studies and prescription to over-the-counter switch studies ("Rx to O-T-C 
Switch"). Covance also has extensive experience in a number of therapeutic 
areas, including diseases of the cardiovascular and central nervous systems, 
endocrinology and respiratory systems, infectious diseases (including AIDS), 
and significant experience in other areas including oncology, bone metabolism 
immunology, gastroenterology, urology, dermatology and hematology. Covance 
has extensive experience in managing both small, medium and large trials in 
the United States and in many parts of the world, including Australia, 
Canada, Western, Central and Eastern Europe, Israel, Mexico and Russia. These 
trials may be conducted separately or simultaneously as part of a 
multinational development plan. In 1995 Covance completed 135 Phase I studies 
involving over 2,900 study patients through two clinical research facilities, 
a 60-bed facility in Madison, Wisconsin and a 60-bed facility in Leeds, 
England; 113 Phase II and III studies involving over 26,900 study volunteers 
and 2,100 investigational sites; and 42 Phase IIIb - IV clinical and other 
periapproval studies involving approximately 8,400 study sites and 
approximately 53,000 study patients. Through 1995, Covance has cumulatively 
been involved in 14 TINDs involving over 2,600 investigational sites and over 
25,000 patients. In addition, Covance has cumulatively conducted over 625 
Phase IIIb - Phase IV studies through 1995 involving approximately 20,000 
investigational sites and over 215,000 patients; over 34 post-marketing 
studies through 1995 involving over 74,000 investigational sites and over 
480,000 patients; and three Rx to O-T-C Switch studies through 1995 involving 
over 3,000 investigational sites and over 10,000 patients. 
    

   
   Covance can manage every aspect of the foregoing types of trials by 
providing its clients the following services: clinical development plans and 
protocol design, consulting services (clinical and data management, 
regulatory 
    


                                     130 
<PAGE> 

advice, information systems and drug development strategy), site, 
investigator and patient enrollment, preparation and submission of TINDs, 
INDs, European study permissions, NDAs, computer assisted NDAs ("CANDAs"), 
product license applications ("PLAs"), computer assisted PLAs ("CAPLAs") and 
European submission dossiers, computerized patient randomization and dose 
assignment and tracking, Phase I - Phase IV study design and implementation, 
monitoring and safety evaluation management and reporting, data processing 
and management, statistical analyses and report writing, medical writing, GCP 
and GMP audits and, through its relationship with Bio- Imaging, medical image 
digitization and processing. Clinical trials are managed by a dedicated 
project team, which, in each case, is led by a project director who 
supervises all aspects of the clinical trial. 

   
   The following is a description of the core services Covance provides, 
either on an individual or integrated basis depending on client needs, as 
part of conducting clinical trials: 
    

   
     Study Design. Covance serves its clients in the critical area of study 
   design by applying its wide development experience in the preparation of 
   study protocols and case report forms ("CRFs"). The study protocol defines 
   the medical issues to be examined in evaluating the safety and efficacy of 
   the drug under study, the number of patients required to produce 
   statistically valid results, the clinical tests to be performed in the 
   study, the time period over which the study will be conducted, the 
   frequency and dosage of drug administration and the exact inclusion and 
   exclusion criteria to be met for the patients enrolled in the study. The 
   success of the study depends not only on the ability of the protocol to 
   accurately reflect requirements of regulatory authorities, but also on the 
   ability of the protocol to fit coherently with the other aspects of the 
   development process and the ultimate marketing strategy for the drug. This 
   includes outcomes and pharmacoeconomic concerns and reimbursement 
   planning. See "--Health Economics Services." 
    

     Once the study protocol has been finalized, CRFs must be developed to 
   record the desired information to be obtained from the clinical studies. 
   The various other disciplines involved in the drug development process, 
   including data management, statistics and regulatory affairs, must work 
   closely with the clinical trial management project team to assure that the 
   right data are acquired in a form which is most efficient for subsequent 
   data entry, management analyses and reporting. Proper CRF design is 
   critical to allowing investigators and field monitors to conduct their 
   respective jobs quickly, accurately and effectively. 

   
     Investigator Recruitment. During the clinical trials, administration of 
   the drug to patients is supervised by physicians, also referred to as 
   investigators, at hospitals, clinics or other locations, also referred to 
   as investigational sites. Covance solicits the participation in the study 
   of investigators who contract directly with either Covance or its client. 
   The successful rapid identification and recruitment of investigators who 
   have the appropriate expertise and an adequate base of patients who 
   satisfy the requirements of the study protocol are critical to the timely 
   completion of the trial. Covance maintains and continually expands and 
   refines its computerized database of approximately 30,000 investigators. 
   Information regarding Covance's experience with these investigators, 
   including factors relevant to rapid study initiation, are contained in the 
   database. This information allows project managers to choose the 
   appropriate investigators for a particular study in an efficient manner. 
   In addition, Covance has worked with approximately 25,000 general 
   practitioners in connection with the conduct of Phase III and IV studies. 
    

   
     Study Monitoring. Covance provides study monitoring services which 
   include investigational site initiation, patient enrollment assistance and 
   data collection through subsequent site visits. These visits also serve to 
   assure that data are gathered according to GCP, the requirements of the 
   client, as specified in the study protocol or otherwise, and applicable 
   regulations. Project management and monitoring services are the 
   operational center of all clinical studies. In most instances a project 
   will meet, exceed or fail to meet expected timeliness for completion based 
   on meeting deadlines during the first few months of study initiation. 
   Therefore, Covance focuses at an early stage on identifying and quickly 
   completing the critical rate-limiting steps of screening and selecting 
   investigators, processing pre-study regulatory paperwork, obtaining 
   institutional review board approvals and scheduling investigational site 
   initiation visits. Drugs under study cannot be released to the 
   investigational sites, and, thus, the study cannot begin until these 
   activities have been completed. 
    

   
     Clinical Data Management and Biostatistical Analysis. Covance's data 
   management and biostatistical analysis operations are managed by 
   professionals with extensive pharmaceutical and biotechnology industry 
   experience in the design and construction of local and multinational 
   clinical trial databases. Data management and biostatistical analysis 
   services are offered as discrete products and as part of an integrated 
   drug 
    


                                     131 
<PAGE> 

   
   development program. During the design of development plans and protocols, 
   Covance offers consulting services relating to, and the determination of, 
   sample size parameters for patient enrollment, development of data 
   analysis plans and randomization schemes. During the conduct of clinical 
   trials, Covance assists in the rapid acquisition of clean and accurate 
   data. Following completion of the clinical trials, Covance assists in 
   report preparation and regulatory submissions. Covance's biostatisticians 
   may participate with clients in meetings with the FDA to present and 
   discuss biostatistical analyses prepared by Covance. Covance has expertise 
   in electronically capturing and integrating geographically diverse data. 
   Covance employs a variety of software, which may be specified by clients 
   or combined with customized programs developed by Covance. 
    

     Drug development time is reduced by performing data management and 
   biostatistical analysis activities in parallel with other drug development 
   activities where possible. For example, data management personnel work as 
   part of an integrated team with clinical program managers and field 
   monitors to continuously enter data, program output tables and listings 
   and validate the database so that there is a rapid progression from "data 
   lock," to "database freeze," to final tables and listings preparation and 
   to biostatistical analyses. Similarly, there is a close working 
   relationship with medical writing and regulatory services personnel. 

   
     Clinical Development Technologies. To expedite the drug development 
   process and to help reduce costs, Covance has created a proprietary drug 
   management system based on an Interactive Voice Response System ("IVRS") 
   and an Information Access System ("IAS"), which are interactive 
   information technologies. IVRS uses touch-tone telephone technology to 
   assist biopharmaceutical clients in managing the "just-in-time" delivery 
   of clinical drug supplies and patient randomization. IVRS is available in 
   multiple languages using toll free numbers and has, in some cases, 
   demonstrated up to 30% reduction in study drug waste. IAS, based on Lotus 
   Notes shareware, provides clients with 24-hour access to study data, such 
   as study patient enrollment progress, patient visit information, CRF 
   status and serious adverse event experience. In another example, by 
   incorporating new optical scanning technology and redesigning the 
   development process for a 40,000-patient Phase IV clinical trial involving 
   900 investigators, Covance was able to decrease the per patient study cost 
   by approximately 60%. 
    

   
     Medical Writing and Regulatory Services. Covance provides medical report 
   writing and regulatory services to its clients in a manner designed to 
   complement parallel development processes to reduce overall development 
   time. Strategic plan and protocol design services provided at the 
   beginning of a project, combined with clear, concise data presentation, 
   analysis and discussion at the completion of the project assist the client 
   in obtaining regulatory approvals. These services are fully integrated 
   with Covance's other services to assure maximum speed consistent with good 
   service and regulatory compliance. Services in this area include 
   integrated clinical/statistical reports, manuscripts, risk/benefit 
   assessment reports, package inserts, quality assurance and environmental 
   risk assessments. Through 1995, Covance has prepared a total of 79 INDs or 
   their equivalent. In addition, through 1995, Covance has cumulatively 
   prepared 66 NDAs, or their equivalents, in the United States or abroad, of 
   which 47 NDAs, or their equivalents, in the United States or abroad are 
   pending and 19 NDAs, or their equivalents, have been approved in the 
   United States and abroad. Further, Covance believes it was one of the 
   first CROs to develop CANDAs and CAPLAs, and Covance worked on two such 
   applications in 1995 and has completed nine such applications since their 
   inception in 1987. 
    

   
     Although Covance's clinical regulatory affairs group typically conducts 
   GCP and GMP audits as part of its overall involvement in a clinical trial, 
   because of the experience and reputation of this group, it is common for 
   the group to be hired independently by a sponsor to conduct such audits. 
   Governmental agencies have also recognized the ability of Covance's 
   regulatory affairs group. Hired by an intermediary, Covance worked in 1992 
   with the European Commission (Directorate General III) on a study 
   concerning the establishment and operations of the then proposed European 
   Medicines Evaluation Agency ("EMEA"), Europe's rough analogy to the FDA. 
   The EMEA became operational on January 1, 1995, and Covance's head of 
   European clinical regulatory affairs was listed as a co-author of the 
   report. In another example, Covance was hired in 1995 by an intermediary 
   to advise the National Drugs Advisory Board in Ireland concerning the 
   recommended structure, systems and procedures for the then proposed 
   creation of the Irish Medicines Board, which was ultimately established in 
   January 1996. 
    

     Treatment Investigational New Drug Applications. The TIND is an 
   application by a pharmaceutical or biotechnology sponsor and the 
   associated procedure to allow broader populations of patients to receive 
   treatment with an investigational new drug for a serious or immediate 
   life-threatening disease, such as AIDS 

                                     132 
<PAGE> 

   
   or cancer, for which no comparable or satisfactory therapy is available. 
   This treatment is provided during the clinical trial phase of development 
   but does not typically use controlled clinical trials. Covance has had 
   substantial experience with TINDs and has developed specialized systems 
   for prompt initiation and effective operation of TIND programs, such as 
   computerized patient screening, optical scanning of CRFs and drug 
   management systems. Other special TIND programs or systems involve 
   providing project specific information to physicians, patients and patient 
   advocacy groups, and data processing, management, analyses and reporting 
   systems. 
    

   
     Covance's EAP, which is conducted pursuant to a TIND, is a mechanism 
   that allows innovative new therapies for life-threatening diseases to be 
   given to expanded populations prior to FDA approval. In one recent 
   situation, a pharmaceutical company contacted Covance to conduct an EAP 
   for a promising new treatment for AIDS. The sponsor, who had little 
   experience with EAPs and had limited supply of the new drug, required that 
   the study be conducted on a global scale (21 countries simultaneously), 
   that enrollment of patients start rapidly (within 90 days of Covance's 
   selection as the CRO) and that all components of the study, including 
   project management, data management, regulatory support and drug supply 
   management, be integrated seamlessly worldwide. To accomplish the 
   sponsor's aggressive goals, Covance formed a multidisciplinary team drawn 
   from six different locations in the United States and Europe involving the 
   clinical and periapproval and the clinical packaging operations. After 
   redesigning the EAP processes, customizing existing technology and 
   employing new systems, Covance has been able to meet or exceed the 
   client's requirements without jeopardizing quality or increasing costs. 
    

   
     Other Periapproval Studies. Besides TINDs, Phase IIIb studies (involving 
   studies conducted after NDA submission but before regulatory approval is 
   issued) and Phase IV studies, Covance performs other types of periapproval 
   studies such as post-marketing surveillance studies and Rx to O-T-C Switch 
   studies. Post- marketing surveillance studies are epidemiologically based 
   evaluations of the use of products in actual medical practice using a 
   broad range of patients. Accordingly, these studies use practicing 
   physicians to evaluate primarily the safety profile of the product under 
   actual medical practice conditions. Post-marketing surveillance studies 
   are large, typically involving over 1,000 physicians and thousands of 
   patients, and usually focus on evaluating just a limited number of key 
   clinical outcomes, such as a particular side effect. In Rx to O-T-C Switch 
   studies, Covance gathers, on behalf of a sponsor, the necessary safety 
   data to obtain regulatory permission for the sale of its drug without the 
   need of a prescription. These studies are also large, well- controlled 
   programs. 
    

   
   Central Laboratory Services 
     Covance believes that the ability to conduct high quality and 
   sophisticated central laboratory services is an integral aspect of what 
   constitutes a full service CRO. Covance's two facilities (one located in 
   the United States and the other in Switzerland) provide central laboratory 
   services dedicated exclusively to biopharmaceutical studies. These 
   facilities, which have conducted over 60 million assays from the 
   specifications of more than 3,000 protocols and have collected data from 
   over 16,500 investigational sites, provide clients with combinable data in 
   studies that can be conducted separately or multinationally and 
   simultaneously. Providing combinable data eliminates the need for 
   statistical correlation among different laboratories by using consistent 
   laboratory methods, the use of same reagent manufacturers, and the use of 
   identical clinical trial reference ranges and equipment calibration. 
   Covance also employs a proprietary clinical trials management system, 
   which Covance believes is unique, that enables it to enter a sponsor's 
   protocol requirements directly into its own database. This system, based 
   on protocol requirements, constructs the drug kits that will go to the 
   investigational sites and the requisition forms therefor, allows for 
   proper laboratory specimen collection from the investigational site, 
   sequencing of study participants visits and investigator test ordering of 
   additional tests and ensures that all demographic data is complete and 
   accurate and will produce for the client reports that are customized to 
   their specifications. 
    

   
     The laboratories provide a comprehensive audit trail by ensuring that 
   all laboratory data are traceable to source documents, are capable of 
   delivering customized data electronically within 24 hours and provide 
   safety test results within 48 hours from most locations. As the need for 
   central laboratory services expands geographically, Covance has expanded 
   the reach of its central laboratories business through a contractual 
   arrangement with a leading South African laboratory that allows Covance to 
   combine the testing capability of this laboratory with its own proprietary 
   systems. Covance expects to continue to investigate other opportunities 
   for geographical expansion of its central laboratory service offerings. 
    


                                     133 
<PAGE> 

   
   Clinical Packaging 
     Covance offers full service contract packaging for the pharmaceutical 
   industry in the United States and Europe including package development and 
   design, coldformed and thermoformed blister units, blister packaging, 
   multi-dose bottle filling, clinical labeling, storage and site 
   distribution of clinical supplies and return services for unused supplies. 
   With the addition of Covance Pharmaceutical Packaging Services AG, Covance 
   packaging services and products have been expanded to include software 
   inventory and validation controls and processes and the manufacturing of 
   robotic packaging machines. Covance believes that by integrating packaging 
   services with its other clinical and periapproval services it can 
   accelerate the drug development process through operational efficiencies 
   that arise from coordinating at the outset the design of a clinical trial. 
    

   
Health Economics 
     Covance offers a wide range of health economic services for managed care 
   organizations, hospitals, health care provider networks and pharmaceutical 
   and device manufacturers. These services include outcomes and 
   pharmacoeconomic studies, reimbursement planning services and disease 
   management services. 
    

   
     Outcomes and Pharmacoeconomic Studies. In this area, Covance offers its 
   clients a full range of strategic and analytic services, including 
   strategic planning, quality-of-life assessment, and economic studies, 
   including feasibility studies, protocol and instrument design and data 
   analysis. Outcomes studies may be prospective, often conducted in 
   conjunction with clinical trials, or retrospective. Many 
   cost-effectiveness studies employ economic modeling techniques to evaluate 
   the full financial impact of new medical technologies. For example, among 
   the studies undertaken by Covance in 1995, Covance completed a cost- 
   effectiveness study for a medical device manufacturer to determine the 
   device's clinical effectiveness in treating brain metastases and to 
   compare the cost of such treatment with other therapies. Covance also 
   completed in 1995 several quality-of-life studies that determined various 
   products' impacts on patients' lives. For example, in a study on the 
   effects of a new treatment for amyotrophic lateral sclerosis (Lou Gehrig's 
   disease), Covance designed the measures for evaluating how treatment 
   affected a patient's ability to function on a daily basis. Through 1995, 
   Covance has designed over 100 outcomes and pharmacoeconomic studies. 
    

   
     When planning studies, Covance examines the audience for the study's 
   findings to determine which of the client's concerns (e.g., regulatory 
   approval, clinical acceptance, insurer coverage or insurer payment) might 
   be more fully informed by the availability of outcomes data, and then 
   determines how such data can be efficiently collected and communicated. 
   Covance typically involves academic and clinical experts to ensure that 
   appropriate techniques are used and to enhance study credibility and 
   acceptance. Covance designs most studies with a goal of publishing its 
   findings in respected, peer-reviewed journals. 
    

   
     Covance believes that given the changing competitive pressures affecting 
   the pharmaceutical industry and the rising need to more rigorously 
   demonstrate the value of particular drugs, both in their own right and 
   compared to other drugs and treatment regimes, the ability to perform 
   outcomes and pharmacoeconomic studies will become increasingly important. 
    

   
     Reimbursement Planning. Covance offers its customers strategic 
   reimbursement and market planning services. These services enable clients 
   to enhance the commercial success of their medical products. Covance 
   analyzes, on behalf of the customer, who will pay for a medical product 
   (e.g., third-party payors such as private insurance companies or federal 
   programs like Medicare) and what economic barriers or opportunities exist 
   for the product (e.g., claims coding, coverage policy, or payment 
   amounts). This work typically involves evaluating government policies and, 
   sometimes, leads to changes in those policies. In addition, Covance often 
   offers its reimbursement planning activities in conjunction with its other 
   services that evaluate existing and potential market size, pricing, 
   distribution, and economic impact. 
    

   
     Through its Medical Technology Hotlines(R) division, Covance also 
   provides full service reimbursement case management, including: (1) 
   contacting insurers to investigate specific coverage and benefit matters, 
   resolving denied claims and educating insurers; (2) assisting 
   manufacturers in designing and effectively running their indigent patient 
   programs, pursuant to which costly new products are made available to 
   patients who cannot afford them because of inadequate insurance coverage 
   or other cost reasons; (3) designing and administering transition programs 
   for manufacturers, which includes obtaining third-party payment for a 
   product for patients who had previously received it free as part of a 
   clinical trial; and (4) conducting reimbursement training seminars for 
   clients and their customers. 
    


                                     134 
<PAGE> 

   
     All of these services are supported by a dedicated information services 
   group that provides a range of data products, services and information 
   systems, including customized hospital cost reports, patient average 
   lengths of stay or mortality rates at the federal, state, local or 
   individual hospital level. The extensive economic and epidemiologic 
   databases Covance maintains are used to perform market research, determine 
   the economics of a disease or inform government authorities about the need 
   for potential policy changes. 
    

   
     Disease Management Services. Working for a variety of customers, 
   including pharmaceutical and device manufacturers, managed care 
   organizations, hospitals, provider networks and computerized medical 
   record companies, Covance designs and implements systems that track 
   patterns of care, patient outcomes, and costs, and develops programs and 
   tools designed to improve quality and decrease costs of care. Such 
   programs and tools include medical practice guidelines and computerized 
   decision support tools. For example, Covance is developing nationwide 
   standards for the optimal treatment of dialysis patients. This work is 
   being performed in conjunction with a major national professional society 
   and is being funded by a manufacturer. In another initiative, Covance has 
   started a national database to track practice patterns and outcomes 
   concerning eye care provided by ophthalmologists. Covance is analyzing the 
   national data and providing reports to individual ophthalmologists 
   regarding their performance. 
    


Clients and Marketing 

   
   Covance provides its product development services on a global basis to, 
among others, the pharmaceutical and biotechnology industries. Specifically, 
Covance serves over 270 biopharmaceutical companies, including all 50 of the 
world's largest pharmaceutical companies and 17 of the world's 25 largest 
biotechnology companies. Of the 270 biopharmaceutical companies Covance 
serves, 45 are Japanese. The Japanese biopharmaceutical companies are served 
by Covance's U. S. and European operations. For the years ended December 31, 
1995, 1994 and 1993, approximately 70%, 76% and 78%, respectively, of 
Covance's net revenues were attributed principally to U.S. operations, while 
approximately 30%, 24% and 22%, respectively, was attributed to European 
operations. Approximately 59%, 52% and 48% of Covance's net revenue during 
1995, 1994 and 1993, respectively, was attributed to Covance's clinical lines 
of business. Approximately 41%, 48% and 52% of Covance's net revenues during 
1995, 1994 and 1993, respectively, were attributed to Covance's nonclinical 
lines of business. No client accounted for 10% or more of Covance's net 
revenues in 1995, 1994, or 1993. None of Covance's clients accounted for 
greater than 5% of Covance's net revenue in the year ended December 31, 1993. 
In the years ended December 31, 1994 and 1995, one client accounted for 
greater than 5% of Covance's net revenues. In fiscal 1993, 1994 and 1995 and 
the nine months ended September 30, 1996, Covance's top five clients 
accounted for approximately 17%, 20%, 21% and 21%, respectively, of Covance's 
net revenues. See "Risk Factors--Risks Relating to Covance-- Dependence on 
Certain Industries and Clients." 
    

   
   Covance's sales activities are conducted by more than 90 business 
development people based in Covance's operations in the United States, 
Europe, Australia, Japan and Singapore. Most of Covance business development 
personnel have technical or scientific backgrounds. 
    

   
   To strengthen its sales and marketing activities, Covance introduced in 
1995 a Lotus Notes based large account management process ("LAMP") that 
allows Covance business development personnel in all locations to promptly 
ascertain the status of any new client activity with any Covance operation 
and is an important tool in managing Covance's key account program. Through 
LAMP, the key account program and dedicated resources, Covance believes it 
can better coordinate and unite the efforts of its sales and marketing 
personnel and strengthen relationships with pivotal biopharmaceutical 
clients. Covance believes that this will allow it to improve its 
understanding of its clients' organizational structure, management practices 
and product pipeline, and, thus, better serve its clients' needs. Conversely, 
LAMP also enables clients, across different business functions, to better 
understand the full range of Covance's services. 
    


Contractual Arrangements 

   
   Most of Covance's contracts in the preclinical, central laboratory, 
clinical packaging and health economics areas are fixed price or 
fee-for-service and in the clinical and periapproval areas are 
fee-for-service with a cap. To a lesser extent, some of the contracts in the 
clinical and periapproval areas are fixed price or fee-for-service without a 
cap. In cases where the contracts are fixed price, Covance bears the cost of 
overruns, with certain exceptions, but benefits if the costs are lower than 
anticipated. In cases where the contracts are fee-for-service with a cap, the 
    


                                     135 
<PAGE> 

   
contracts contain an overall budget for the trial based on time and cost 
estimates. If costs are lower than anticipated, the client keeps the savings, 
but if costs are higher than estimated, then Covance is responsible for the 
overrun unless the increased cost is a result of a change requested by the 
client, such as an increase in the number of patients to be enrolled or the 
type or amount of data to be collected. Contracts may range from a few months 
to several years depending on the nature of the work performed. In some 
cases, for multiyear contracts involving either preclinical or clinical and 
periapproval trials, a portion of the contract fee is paid at the time the 
study or trial is started with the balance of the contract fee payable in 
installments over the study or trial duration and may be performance based. 
For instance, in clinical and periapproval trials, installment payments may 
be related to investigator recruitment, patient enrollment or delivery of the 
database. 
    

   
   Most of Covance's contracts for the provision of its services are 
terminable by the client either immediately or upon notice. Contracts may be 
terminated for a variety of reasons, including the failure of a product to 
satisfy safety requirements, unexpected or undesired results of the product, 
the client's decision to forego or terminate a particular study, insufficient 
enrollment or investigator recruitment, or Covance's failure to properly 
discharge its obligations thereunder. Although the contracts often require 
payment of expenses to wind down the study and fees earned to date, and in 
some cases, a termination fee or a payment of a portion of the fees or 
profits that would have been earned under the contract if the contract had 
not been terminated early, the loss of a large contract or the loss of 
multiple contracts could materially and adversely affect Covance. See "Risk 
Factors--Risks Relating to Covance--Fixed Price Nature of Contracts; Loss or 
Delay of Large Contracts." 
    


Backlog 

   
   Certain of Covance's studies and projects are performed over an extended 
period of time which may be as long as several years. With respect to such 
studies or projects, Covance maintains an order backlog to track anticipated 
net revenues for such work that has yet to be earned. Covance does not 
maintain an order backlog for all the services it provides because such 
services are performed within a short period of time or for other reasons 
where it is not practical or feasible to maintain an order backlog. 
Additionally, services appropriate for backlog measurement do not correspond 
exactly with any particular line of business. 
    

   
   Backlog is principally calculated with respect to work to be performed 
pursuant to letters of intent and contracts. Once work under a letter of 
intent or contract commences, net revenue is recognized over the life of the 
contract. In certain cases, however, Covance will work on a project prior to 
executing a letter of intent and the backlog may include the net revenue 
expected from such project. 
    

   
   No assurance can be given that Covance will be able to realize all or any 
net revenue included in backlog. Although backlog can be meaningful to 
management with respect to a particular study where study-specific 
information is known (e.g., study duration, performance clauses and other 
study-specific contract terms), Covance believes that its aggregate backlog 
as of any date is not necessarily a meaningful indicator of future results 
for a variety of reasons, including the following: First, studies vary in 
duration. For instance, some studies that are included in 1995 backlog may be 
completed in 1996, while others may be completed in later years. Second, the 
scope of studies may change, which may either increase or decrease their 
value. Third, studies included in backlog may be subject to bonus or penalty 
payments. Fourth, trials under letters of intent or contracts included in 
backlog are subject to termination or delay at any time by the client or 
regulatory authorities. Termination or delays can result from a number of 
reasons. See "--Contractual Arrangements." Delayed contracts remain in 
Covance's backlog pending determination of whether to continue, modify or 
cancel the study. 
    

   
   Using this method of measuring backlog, at December 31, 1995, 1994 and 
1993, Covance's aggregate backlog was approximately $392 million, $344 
million and $294 million, respectively. 
    


Competition 

   
   The CRO industry is highly fragmented, with participants ranging from 
hundreds of small, limited-service providers to a few full service CROs with 
global capabilities. Covance primarily competes against in-house departments 
of pharmaceutical companies, full-service CROs and, to a lesser extent, 
universities and teaching hospitals. Covance believes, based on 1995 
revenues, that the five largest CROs after itself include PPD (after its 
merger with APBI), Quintiles Transnational Corporation, Huntington 
International Holdings PLC, Parexel International Corporation and ClinTrials 
Inc. CROs compete on the basis of several factors, including reputation for 
on-time quality performance, expertise and experience in specific therapeutic 
areas, scope of service offerings, 
    


                                     136 
<PAGE> 

   
how well such services are integrated, strengths in various geographic 
markets, price, technological expertise and efficient drug development 
processes, the ability to acquire, process, analyze and report data in a 
time-saving and accurate manner, the ability to manage large-scale clinical 
trials both domestically and internationally, expertise and experience in 
health economics and size. While Covance has competed effectively in these 
areas, there can be no assurance that Covance will be able to continue to do 
so. As a result of competitive pressures, the CRO industry is consolidating. 
This trend is likely to produce competition among the larger CROs for both 
clients and acquisition candidates and companies may choose to limit the CROs 
they are willing to work with. In addition, there are few barriers to entry 
for small, limited-service entities considering entering the CRO industry. 
These entities may compete against larger CROs for clients. Furthermore, the 
CRO industry has attracted the attention of the investment community, which 
could lead to increased competition by increasing the availability of 
financial resources for CROs. Increased competition may lead to price and 
other forms of competition that could have a material adverse effect on the 
results of operations of Covance. See "--CRO Industry Overview." 
    


Government Regulation 

   
   The laboratory and manufacturing services performed by Covance are subject 
to various regulatory requirements designed to ensure the quality and 
integrity of the testing and manufacturing processes. See "--The Drug 
Development Process--Overview." The industry standards for conducting 
preclinical laboratory testing are embodied in the GLP and GMP regulations 
and for central laboratory operations in Clinical Laboratory Improvement 
Amendments of 1988 ("CLIA"). Covance's central laboratories also, in limited 
circumstances and when required by a client, follow GLP. Covance's central 
laboratory in Geneva has also been certified by CAP. GMP sets forth the 
requirements for manufacturing facilities. GLP and GMP have been adopted by 
the FDA, by the Department of Health in the United Kingdom and by similar 
regulatory authorities in other parts of the world. GLP and GMP stipulate 
requirements for facilities, equipment and professional staff. The 
regulations require standardized procedures for studies, for recording and 
reporting data and for retaining appropriate records. To help ensure 
compliance, Covance has established quality assurance controls at its 
laboratory and manufacturing facilities which monitor ongoing compliance with 
GLP, GMP and CLIA regulations, as applicable, by auditing test data and 
conducting regular inspections of testing and manufacturing procedures. 
    

   
   The industry standard for the conduct of clinical research and development 
studies is embodied in the regulations for GCP. Although GCP has not been 
formally adopted by the FDA nor, with certain exceptions, by similar 
regulatory authorities in other countries, certain provisions of GCP have 
been included in FDA regulations. As a matter of practice, the FDA and many 
other regulatory authorities require that test results submitted to such 
authorities be based on studies conducted in accordance with GCP. These 
regulations require (1) complying with specific requirements governing the 
selection of qualified investigators; (2) obtaining specific written 
commitments from the investigators; (3) verifying that patient informed 
consent is obtained; (4) monitoring the validity and accuracy of data; (5) 
verifying drug or device accountability; (6) instructing investigators to 
maintain records and reports; and (7) permitting appropriate governmental 
authorities access to data for their review. Covance must also maintain 
reports for each study for specified periods for inspection by the study 
sponsor and the FDA during audits. As with GLP and GMP, noncompliance with 
GCP can result in the disqualification of data collection during the clinical 
trial. 
    

   
   Covance's standard operating procedures are written in accordance with 
regulations and guidelines appropriate to the region and the nation where 
they will be used. Within Europe, all work is carried out in accordance with 
the European Community Note for Guidance "Good Clinical Practice for Trials 
on Medicinal Products in the European Community" and the requirements of the 
applicable country. In addition, FDA regulations and guidelines serve as a 
basis for Covance's North American and Asian/Pacific standard operating 
procedures. From an international perspective, when applicable, Covance has 
implemented common standard operating procedures across regions to assure 
consistency whenever it is feasible and appropriate to do so. 
    

   
   Covance's animal import and breeding facilities are also subject to a 
variety of federal and state laws and regulations, including The Animal 
Welfare Act and the rules and regulations promulgated thereunder by the 
United States Department of Agriculture ("USDA"). These regulations establish 
the standards for the humane treatment, care and handling of animals by 
dealers and research facilities. Covance's breeding and import animal 
facilities maintain detailed standard operating procedures and the 
documentation necessary to assure compliance with applicable regulations for 
the humane treatment of the animals in its custody. Besides being licensed by 
the USDA as both a dealer and research facility, this business is also 
accredited by the American Association for the 
    


                                     137 
<PAGE> 

Accreditation of Laboratory Animal Care and has registered assurance with the 
U.S. National Institutes of Health Office of Protection for Research Risks. 

   
   The use of controlled substances in testing for drugs of abuse is 
regulated by the Drug Enforcement Administration (the "DEA"). All Covance 
laboratories using controlled substances for testing purposes are licensed by 
the DEA. 
    

   
   Covance's U.S. laboratories are subject to licensing and regulation under 
federal, state and local laws relating to hazard communication and employee 
right-to-know regulations, 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 Covance laboratories are operated in 
material compliance with applicable federal and state laws and regulations 
relating to the storage and disposal of all laboratory specimens including 
the regulations of the Environmental Protection Agency, the Nuclear 
Regulatory Commission, the Department of Transportation, the National Fire 
Protection Agency and the Resource Conservation and Recovery Act. Although 
Covance believes that it is currently in compliance in all material respects 
with such federal, state and local laws, failure to comply could subject 
Covance to denial of the right to conduct business, fines, criminal penalties 
and other enforcement actions. 
    

   
   In addition to its comprehensive regulation of safety in the workplace, 
the Occupational Safety and Health Administration has established extensive 
requirements relating to workplace safety for health care employers, 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. Furthermore, relevant 
Covance employees receive initial and periodic training to ensure compliance 
with applicable hazardous materials regulations and health and safety 
guidelines. 
    

   
   The regulations of the Department of Transportation, the Public Heath 
Service and the Postal Service apply to the surface and air transportation of 
laboratory specimens. Covance's laboratories also comply with the 
International Air Transport Association regulations, which govern 
international shipments of laboratory specimens. Furthermore, when the 
materials are sent to a foreign country, the transportation of such materials 
becomes subject to the laws, rules and regulations of such foreign country. 
    


Intellectual Property 

   
   Covance has developed certain computer software and technically derived 
procedures that provide separate services and are intended to maximize the 
quality and effectiveness of its services. Although Covance's intellectual 
property rights are important to its results of operations, Covance believes 
that such factors as the technical expertise, knowledge, ability and 
experience of Covance's professionals are more important, and that, overall, 
these technological capabilities provide significant benefits to its clients. 
    


Employees 

   
   At September 1996 Covance had approximately 5,000 employees, approximately 
30% of whom are employed outside of the United States. Approximately 32 of 
Covance's employees hold M.D. degrees, 134 hold Ph.D. degrees, 8 hold 
Pharm.D. degrees, 25 hold DVM degrees and approximately 128 hold masters or 
other postgraduate degrees. Covance believes that its relations with its 
employees are good. 
    

   
   Covance's performance depends on its ability to attract and retain 
qualified professional, scientific and technical staff. The level of 
competition among employers for such skilled personnel is high. Covance 
believes that its employee compensation and benefit plans, including its 
recently adopted employee stock ownership plan, enhance employee morale, 
professional commitment and work productivity and provide an incentive for 
employees to remain with Covance. While Covance has not experienced any 
significant problems in attracting or retaining qualified staff, there can be 
no assurance that Covance will be able to avoid such problems in the future. 
    


Facilities 

   
   Covance both owns and leases its facilities. Covance's principal executive 
offices are located in Princeton, New Jersey where it leases approximately 
157,000 square feet of space. The lease expires in 2004. Because its existing 
space is approximately 95% occupied and to accommodate its growth, Covance is 
currently in discussions with the landlord of this facility to either lease 
or purchase additional space in Princeton, New Jersey. No assurance 
    


                                     138 
<PAGE> 

   
can be provided that these discussions will be satisfactorily resolved. 
Covance owns its 397,000 square-foot preclinical laboratory located in 
Madison, Wisconsin and its 205,000 square-foot preclinical laboratory in 
Harrogate, England. Covance leases most of its 201,000 square-foot 
preclinical laboratory in Vienna, Virginia. It also owns several of the 
buildings. The leases expire in 1999 and have a 10-year renewal option. 
Covance also leases its 152,000 square-foot pharmaceutical laboratory in 
Indianapolis, Indiana, which expires in 2000. Covance is investigating 
extensions of both leases and other options with respect to such facilities. 
Covance leases its 51,000 square-foot pharmaceutical laboratory in Geneva, 
Switzerland, which lease expires in 2000. Covance's domestic packaging 
operations are conducted from several leased facilities. The principal 
packaging facility is in Allentown, Pennsylvania. The leases are for 
approximately 100,000 square feet of space and they all expire in 1999. 
Covance is currently reviewing facility needs for its domestic packaging 
operations. Covance's Swiss based packaging operation currently conducts 
business in a 20,000 sq. ft. leased facility, but has plans to construct a 
new, purpose designed 37,000 sq. ft. facility. The new facility is expected 
to be completed in early 1998. In addition, in October 1996, Covance 
purchased an 81,000 sq. ft. former pharmaceutical manufacturing facility in 
Horsham, England. After its renovation is completed by mid-1997, this 
facility will be used to provide clinical packaging, clinical and 
periapproval services and health economics services and also serve as 
Covance's European headquarters. Covance Biotechnology's facility in North 
Carolina is leased. See "Risk Factors--Risks Relating to Covance-- 
Biomanufacturing--New Business Venture." Covance also owns or leases other 
facilities in the United States, England, Ireland, Belgium, France, Germany, 
Switzerland, Sweden, Australia, Singapore and Japan. 
    


Legal Proceedings 

   
   Covance is party to lawsuits and administrative proceedings incidental to 
the normal course of its business. Covance does not believe that any 
liabilities related to such lawsuits or proceedings will have a material 
effect on its financial condition or results of operations. 
    


                                     139 
<PAGE> 

   
                            MANAGEMENT OF COVANCE 
    


Management 

   
   Directors. Certain information with respect to the persons who will serve 
as directors of Covance following the Distributions is set forth below. Prior 
to the closing of the Covance Spin-Off Distribution, certain 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 Covance Certificate, the Covance Board will be divided into three classes 
effective upon the Distributions and one class of the Covance 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. [Covance is contemplating the selection 
of additional directors which selection may occur prior to the 
Distributions.] The Covance Board will be comprised of eight directors, one 
of whom will be an officer of Covance and two of whom will be officers of 
Corning. Covance 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>
Christopher A. Kuebler     43 
Van C. Campbell            58 
William C. Ughetta         63 
J. Randall MacDonald 
Nigel Morris               37 
Robert M. Baylis           57 
Irwin Lerner               65 
</TABLE>

   
   Christopher A. Kuebler has been Covance's President and Chief Executive 
Officer, and an Executive Vice President of CLSI, an affiliate of Covance, 
since November 1994. From March 1993 through November 1994, he was the 
Corporate Vice President, European Operations for Abbott Laboratories Inc. 
("ALI"), a diversified health care company. From January 1991 until March 
1993, Mr. Kuebler was the Vice President, Sales and Marketing for ALI's 
Pharmaceutical Division. Mr. Kuebler has been a member of the Covance Board 
since November 1994. Mr. Kuebler also serves in various executive officer and 
director capacities of Covance's subsidiaries. 
    

   
   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. Mr. Campbell has been a member of the Covance 
Board since May 1995. He is a director of Armstrong World Industries, Inc. 
and General Signal Corporation. 
    

   
   William C. Ughetta is the Senior Vice President and General Counsel of 
Corning. Mr. Ughetta joined Corning in 1968 as assistant secretary and 
assistant counsel. He was elected secretary of the corporation in 1971 and 
vice president in 1972. He was elected a senior vice president in 1983. Mr. 
Ughetta has been a member of the Covance Board since July 1996. He is a 
director of Siecor Corporation and Chemung Canal Trust Company. 
    

   
   J. Randall MacDonald has been the Senior Vice President-Human Resources 
and Administration for the GTE Corporation, a telecommunications company, 
since April 1995. Prior to April 1995, Mr. MacDonald held various senior 
positions with GTE, including Vice President-Employee Relations and 
Organizational Development and Vice President of Organizational Development. 
Mr. MacDonald joined GTE in 1983 as a Director of Employee Relations. 
    

   
   Nigel W. Morris has been the President and Chief Operating Officer of 
Capital One Financial Corporation ("Capital One"), a financial services 
company, from 1995 to the present. Mr. Morris was the Executive Vice 
President, Credit Card Division, of the Signet Banking Corporation 
("Signet"), a company, from 1993 to 1995. From 1988 until 1993, Mr. Morris 
was the Senior Vice President- Policy/Strategy-Credit Card Business for 
Signet. He is also a director of Capital One. 
    

   
   Robert M. Baylis was the Vice Chairman of CS First Boston Corporation 
("First Boston"), a financial services company, from 19  to 1994. Prior to 
19 , Mr. Baylis held a variety of positions with First Boston, including 
Chairman and Chief Executive Officer of CS First Boston Pacific, Inc./Hong 
Kong, Managing Director-Investment Banking Group and Managing Director-Equity 
Security Department. Prior to his retirement, Mr. Baylis was with First 
Boston for over years. He is also a director of the following 
    

   
                                     140 
<PAGE> 
    

   
corporations: Host Marriott Corporation, Gryphon Holdings, Inc., Home State 
Holdings, Inc. and New York Life Insurance Company. 
    

   
   Irwin Lerner has been the Chairman of the Board of Directors and Executive 
Committee of Hoffmann-La Roche, Inc. ("Hoffmann"), a pharmaceutical company, 
since 1993. From 1993 until 19 , Mr. Lerner was the President and Chief 
Executive Officer of Hoffmann, and prior to , Mr. Lerner was . He is also a 
director of the following corporations: Humana, Inc., Medarex, Inc., Zurn 
Industries, Inc., Public Service Enterprise Group Incorporated and Hoffmann. 
    

   
   Directors' Compensation. Each director of Covance, other than a director 
who is an employee of Covance, will receive $15,000 annually for service as a 
director and will also be paid $1,000 for each meeting of the Covance Board 
and $500 for each meeting of any committee thereof which he attends. 
    

   
   Covance 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 Covance 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       non-employee directors eligible to participate in 
the deferred compensation plan. 
    

   
   Covance has adopted, effective the Distribution Date, a restricted stock 
plan for non-employee directors, pursuant to which Covance will issue to each 
non-employee director elected 200 shares of Covance 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 2,000 shares upon 
such director's election, subject to forfeiture and restrictions on transfer. 
    

   
   Committees of the Board of Directors. Prior to the Distributions, the 
Covance Board is expected to establish and designate specific functions and 
areas of oversight to an Audit Committee and a Compensation Committee (the 
"Covance Compensation Committee"). The Audit Committee will examine and 
consider matters relating to the financial affairs of Covance, including 
reviewing Covance's annual financial statements, the scope of the independent 
and internal audits and the independent auditor's letter to management 
concerning the effectiveness of Covance's internal financial and accounting 
controls. The Covance Compensation Committee will make recommendations to the 
Covance Board with respect to programs for human resource development and 
management organization and succession, determine senior executive 
compensation, consider and make recommendations to the Covance Board with 
respect to compensation matters and policies and employee benefit and 
incentive plans, administer such plans, and administer Covance's stock option 
and equity based plans and grant stock options and other rights under such 
plans. 
    

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

   
   Richard J. Andrews (49) has been a Senior Vice President of Covance since 
July of 1996. In addition, Mr. Andrews has served as the President of Covance 
Central Laboratory Services Inc., a wholly owned subsidiary of Covance, since 
June 1994. From January 1993, Mr. Andrews has served as the President of 
Covance Central Laboratory Services S.A., a wholly owned subsidiary of 
Covance Central Laboratory Services Inc. since April 1994. Covance Central 
Laboratory Services Inc. and Covance Central Laboratory Services S.A. provide 
Covance's central laboratory services. Prior to January 1993. Mr. Andrews 
served in various executive capacities in Europe, including Worldwide 
Business Director, for Dupont International S.A., a multinational chemical 
and pharmaceutical company. 
    

   
   Michael Giannetto (34) has been Covance's Controller since July 1996. From 
December 1992 to March 1995, Mr. Giannetto was the Manager of Financial 
Reporting and Technical Accounting for CLSI, an affiliate of Covance. From 
March 1995 to July 1996, Mr. Giannetto was the Business Controller for 
Covance. Prior to December 1992, Mr. Giannetto was a Senior Audit Manager for 
Deloitte & Touche. 
    

   
   Charles C. Harwood, Jr. (43) has been Covance's Senior Vice President and 
Chief Financial Officer since July 1996. From November 1994 to July 1996, Mr. 
Harwood was the Vice President and Chief Financial Officer. From May 1993 to 
November 1994, Mr. Harwood was Executive Director, Finance of Covance. From 
January 1993 to May 1993, Mr. Harwood was Chief Financial Officer and Vice 
President of Finance with Integrated Telecom 
    


                                     141 
<PAGE> 

   
Technologies, Inc. Prior to that position, he was the President of Pembroke 
Development Co., Inc., a commercial real estate development company. Mr. 
Harwood also serves as a director of Bio-Imaging, Covance Biotechnology and 
several of Covance's other subsidiaries. 
    

   
   Jeffrey S. Hurwitz (36) has been Covance's Senior Vice President, General 
Counsel and Secretary since July 1996. From November 1994 to July 1996, Mr. 
Hurwitz was Covance's Vice President, General Counsel and Secretary. From 
October 1993 to November 1994, Mr. Hurwitz was Covance's General Counsel and 
Secretary. From May 1992 to October 1993, Mr. Hurwitz was an Assistant 
Counsel and Assistant Secretary for CLSI, an affiliate of Covance. From 
August 1991 to May 1992, Mr. Hurwitz was an Assistant Counsel for Corning. 
From February 1991 to June 1991, Mr. Hurwitz was an Associate with the law 
firm of Luskin & Stern. Prior to February 1991, Mr. Hurwitz was an Associate 
with the law firm of Shearman & Sterling. Mr. Hurwitz also serves as a 
director of Bio-Imaging, Covance Biotechnology and several of Covance's other 
subsidiaries. 
    

   
   Kim D. Lamon, M.D., Ph.D. (44) has been a Senior Vice President of Covance 
since July of 1996. In addition, Dr. Lamon has been the President of Covance 
Clinical and Periapproval Services Inc. and Covance Periapproval Services 
Inc. since May 1996. Covance Clinical and Periapproval Services Inc., Covance 
Periapproval Services Inc. and their European affiliates provide Covance's 
clinical and periapproval services. From April 1994 until May 1996, he was 
the Executive Vice President, Chief Medical Officer for CCL and Senior Vice 
President, Science and Technology for CLSI, affiliates of Covance. From July 
1992 until April 1994, Dr. Lamon was Senior Vice President, Clinical Research 
and Development and Executive Medical Director for Rhone-Poulenc Rorer 
("RPR"), a pharmaceutical company. Prior to July 1992, Dr. Lamon was Senior 
Vice President, Clinical Research and Regulatory Affairs at RPR. Dr. Lamon 
received his M.D. and Ph.D. in Pharmacology from Thomas Jefferson University. 
Since 1989, Dr. Lamon has been an Adjunct Assistant Professor of Pharmacology 
at Thomas Jefferson University. 
    

   
   James D. Utterback (41) has been Covance's Senior Vice President, 
International New Business Ventures and is also responsible for Covance's 
clinical packaging operations since August 1995. From May 1994 until August 
1995, Mr. Utterback was the Senior Vice President, Human Resources and 
Quality for CLSI. Prior to May 1994, Mr. Utterback served in various 
executive capacities, including Chief Executive Officer in South Africa, for 
RPR, a pharmaceutical company. Mr. Utterback has worked in the pharmaceutical 
industry since 1985, living in Europe, Africa and the United States. 
    

   
   Michael G. Wokasch (45) has been a Senior Vice President of Covance since 
July of 1996. In addition, Mr. Wokasch has been the President of Covance 
Laboratories Inc., a wholly owned subsidiary of Covance, since July 1995. 
Covance Laboratories Inc. and its affiliates provide Covance's preclinical 
services. From January 1992 until July 1995, Mr. Wokasch served as Divisional 
Vice President of Sales of ALI. From October 1991 to January 1992, Mr. 
Wokasch served as Director for New Product/Marketing/Development & Scientific 
Relations at ALI. Prior to October 1991, Mr. Wokasch was a Director, New 
Product Development at ALI. 
    


Executive Compensation 

   
   Historical Compensation. The following table sets forth information with 
respect to annual and long-term compensation at rates expected to be paid by 
Covance and its subsidiaries to each of the chief executive officer and the 
four other most highly compensated executive officers (the "named executive 
officers") of Covance 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. 
    


                                     142 
<PAGE> 

                          SUMMARY COMPENSATION TABLE 

<TABLE>
<CAPTION>
                                                                             Long-Term Compensation 
                                                                            ------------------------ 
                                              Annual Compensation                    Awards 
                                      ------------------------------------  ------------------------ 
                                                                             Restricted   Securities 
          Name and                     Salary                Other Annual      Stock      Underlying      All Other 
     Principal Position        Year     (1)     Bonus (2)  Compensation(3)   Awards(4)     Options     Compensation(5) 
- ----------------------------   ----- ---------  ---------   --------------- -----------  -----------  ---------------- 
<S>                            <C>   <C>        <C>        <C>              <C>          <C>          <C>
Christopher A. Kuebler, 
  Chairman, President and      1996   350,000    192,500        42,447             --           --         72,043 
Chief Executive Officer        1995   322,567    303,958        39,927        326,926       81,000         68,680 
                               1994    51,667    101,679            --             --       20,000          2,140 
Richard J. Andrews, Senior     1996   232,960     93,184            --             --        4,000         15,997 
Vice President; President,     1995   222,833    176,512            --             --           --         17,445 
Covance Central Laboratory 
  Services Inc.                1994   197,635     41,000            --             --       12,000         10,466 
Kim D. Lamon, Senior           1996   323,800    178,090        31,745             --           --         56,012 
Vice President; President,     1995   309,417    160,265        29,225         89,524       60,000         58,060 
Covance Clinical and           1994   200,000    175,625            --             --       23.000         18,534 
 Periapproval Services Inc. 
  and Covance Periapproval 
  Services Inc. 
James D. Utterback,            1996   245,758    135,167        19,244             --           --         43,876 
Senior Vice President,         1995   237,167    104,826        19,244         70,499       24,000         41,595 
International New Business 
  Ventures                     1994   153,333    134,646            --             --       18,000         17,509 
Michael Wokasch,               1996   208,000     93,600         3,600             --           --         17,730 
Senior Vice President;         1995   100,000     76,500            --             --       38,000          4,740 
President, Covance 
  Laboratories, Inc. 
</TABLE>

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

   
(1) Reflects for 1996 current salaries on an annualized basis. 
    

   
(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. 
    

   
(4) Messrs. Kuebler, Utterback, Wokasch and Dr. Lamon held an aggregate of 
    44,240, 16,316, 8,000 and 27,941 shares of restricted stock, 
    respectively, having an aggregate value on September 30, 1996 of 
    $1,725,360, $636,324, $312,000 and $1,089,699, 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 Covance and in part if such officer's 
    employment is terminated by Covance. 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 Covance Common Stock will thereafter be granted 
    pursuant to the terms of the Covance 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 Covance to the 
    Covance Retirement Savings Plan (as defined below) for 1996: $6,531 for 
    Mr. Kuebler, $6,517 for Mr. Andrews, $6,000 for Dr. Lamon, $6,750 for Mr. 
    Utterback and $8,250 for Mr. Wokasch. Also includes a $12,840 automobile 
    allowance to be received by each of Messrs. Kuebler, Utterback and Dr. 
    Lamon and $9,480 to be received by each of Messrs. Andrews and Wokasch. 
    Also includes 20% of interest-free loans made by Covance to the following 
    individuals in the following amounts, together with imputed interest 
    thereon: $200,000 for Mr. Kuebler, $150,000 for Dr. Lamon and $100,000 
    for Mr. Utterback, which loans are to be forgiven over a five-year period 
    provided they continue to be employed by Covance and were made to assist 
    such individuals in relocating to the New Jersey area. 
    


                                     143 
<PAGE> 

   
   Option Grants. The following table sets forth certain information 
regarding options granted in 1995 (except for Mr. Andrews whose options were 
granted on April 25, 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 Covance who hold at the Distribution 
Date Corning stock options, including a portion of those granted on December 
6, 1995, will receive new options of Covance ("New Options") under the 
Covance Stock Option Plan (as defined below) in exchange for the surrender of 
such Corning options. The remainder of the options granted on December 6, 
1995 will be cancelled. It is anticipated that such cancelled options will be 
replaced by New Options to be granted under the Covance Stock Option Plan. 
    

   
   The exercise prices and the number of shares of Covance 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 Covance 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 Covance 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. 
    


                  OPTION/SAR GRANTS IN FISCAL YEAR 1995 (1) 

<TABLE>
<CAPTION>
                                                                                  Potential Realizable Value at 
                                                                                  Assumed Annual Rates of Stock 
                                                                                      Price Appreciation for 
                                                 Individual Grants                       Option Term (3) 
                                      --------------------------------------   ------------------------------------ 
                           Number of     % of Total 
                          Securities      Options 
                          Underlying      Granted 
                            Options     to Employees   Exercise   Expiration   Gain at     Gain at       Gain at 
          Name            Granted (2)  in Fiscal Year    Price       Date      0% (4)        5%            10% 
 -----------------------  ----------- --------------   --------- -----------   -------  ------------  ------------- 
<S>                        <C>             <C>           <C>      <C>             <C>    <C>           <C>
Christopher A. Kuebler        81,000         2.4%        31.25    12/5/2005       0       1,591,890      4,034,161 
Richard J. Andrews             4,000         0.1%        34.44    4/24/2006       0          86,637        219,554 
Kim D. Lamon                  60,000         1.8%        31.25    12/5/2005       0       1,179,177      2,988,267 
James D. Utterback            24,000         0.7%        31.25    12/5/2005       0         471,671      1,195,307 
Michael Wokasch               30,000         0.9%        31.25    12/5/2005       0         589,589      1,494,134 
                               8,000         0.2%        27.50    10/3/2005       0         138,357        350,623 
All Optionees as a 
  Group (4)                3,389,100       100.0%        31.34         2005       0      66,797,662    169,278,390 
</TABLE>

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

(1) No SARs were granted. 

   
(2) The stock option agreements with Messrs. Kuebler, Utterback and Wokasch 
    (with respect to the 30,000 share grant) and Dr. Lamon 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 Mr. Andrews provides that one-half of the options become 
    exercisable on April 24, 1997 and all of the options will become 
    exercisable on April 24, 1998. The stock option agreement with Mr. 
    Wokasch (with respect to the 8,000 share grant) provides that one-half of 
    the options become exercisable on October 4, 1996 and all of the options 
    will become exercisable on October 4, 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. 

                                     144 
<PAGE> 

   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. 

                  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>
Christopher A. Kuebler           0             0          10,000          91,000             0                  0 
Richard J. Andrews               0             0           2,000          14,000             0                  0 
Kim D. Lamon                     0             0          10,000          73,000             0             13,812 
James D. Utterback               0             0          10,000          32,000             0              8,500 
Michael Wokasch                  0             0               0          38,000             0             28,501 
</TABLE>

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

(1) There are no SARs outstanding. 

   
   Corporate Performance Plan Activity. Awards of performance-based shares of 
Corning Common Stock have been granted to Covance'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 137. 
    

   
   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 in December 1995 and 
remove all possibility of forfeiture and restrictions on transfer from such 
shares. 
    


                  CORPORATE PERFORMANCE PLAN ACTIVITY TABLE 

<TABLE>
<CAPTION>
                                             Number                    Number      Number         Vesting 
                                   Grant   of Shares   Performance    of Shares   of Shares       Date of 
         Number             Year    Date    Granted       Period      Forfeited    Earned      Earned Shares 
 ------------------------   -----  ------  ----------  ------------  ----------- ----------  ---------------- 
<S>                         <C>    <C>     <C>         <C>           <C>         <C>         <C>
Christopher A. Kuebler      1996   12/95     13,500        1996                                    2/99 
                            1995   12/94     10,000        1995                    10,740          2/98 
                            1994                  0 
Richard J. Andrews          1996                  0 
                            1995                  0 
                            1994                  0 
Kim D. Lamon                1996   12/95     10,000        1996                                    2/99 
                            1995   12/94      6,500        1995         3,559       2,941          2/98 
                            1994                  0 
James D. Utterback          1996   12/95      4,000        1996                                    2/99 
                            1995   12/94      4,000        1995         1,684       2,316          2/98 
                            1994                  0 
Michael Wokasch             1996   12/95      5,000        1996                                    2/99 
                            1995                  0 
</TABLE>

                                     145 
<PAGE> 

   
   Variable Compensation. Covance has adopted, effective upon the 
Distributions, a variable compensation plan (the "Plan"), an annual incentive 
cash compensation plan for approximately 400 supervisory, management and 
executive employees similar to an annual performance plan currently 
maintained by Covance. 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, operating margin, 
return on equity, or earnings per share, or a combination 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 Covance Compensation Committee sets the target for the performance year. 
The Covance 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. Covance has adopted, effective upon 
the Distributions, the Employee Equity Participation Program (the "Program") 
consisting of two plans: (a) a stock option plan (the "Covance Stock Option 
Plan") and (b) an incentive stock plan (the "Covance Incentive Stock Plan"). 
The Program is designed to provide a flexible mechanism to permit key 
employees of Covance and of any subsidiary to obtain significant equity 
ownership in Covance, thereby increasing their proprietary interest in the 
growth and success of Covance. 
    

   
   The Program, which will be administered by the Covance Compensation 
Committee, provides for the grant to eligible employees of either 
non-qualified or "incentive stock" options, or both, to purchase shares of 
Covance Common Stock at no less than fair market value on the date of grant. 
The Covance 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 Covance by the 
optionee in full prior to delivery of the stock. The optionee may pay the 
option price in cash or with shares of Covance 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 
Covance Compensation Committee may grant options pursuant to which an 
optionee who uses shares of Covance 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 Covance 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 Covance 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 Covance Compensation Committee to award to 
eligible employees shares, or the right to receive shares, of Covance Common 
Stock, the equivalent value in cash or a combination thereof (as determined 
by the Covance Compensation Committee). The Covance 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 Covance 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 Covance 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 Covance 
    


                                     146 
<PAGE> 

   
Compensation Committee. Approximately 400 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 Covance Common Stock 
which may be optioned or granted to eligible employees will be 4,725,000. 
Shares from expired or terminated options under the Covance 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 Covance 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 Covance resulting from any recapitalization, stock or 
unusual cash dividend, stock distribution, stock split or any other increase 
or decrease effected without receipt of consideration by Covance, or a merger 
or consolidation in which Covance 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 Covance 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 Covance Common Stock. 
    

   
   Covance believes that the federal income tax consequences of the Program 
are as follows. An optionee who exercises a non-qualified option granted 
under the Covance 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 Covance 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 Covance 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 Covance 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 Covance 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 Covance Common Stock which are not subject to restrictions and 
possibility of forfeiture and which are awarded to an employee under the 
Covance 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 Covance 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 Covance 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 Covance 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 Covance upon a participant's disposition of shares 
acquired under the Program, except that Covance 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. 
    


                                     147 
<PAGE> 

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

   
   It is anticipated that, prior to the Distribution Date, the Compensation 
Committee of the Corning Board will approve, and Covance will adopt, a 
nonqualified Covance Supplemental Executive Retirement Plan for the benefit 
of certain executive officers of Covance, including the named executive 
officers, after the Distribution Date. Once adopted, it is anticipated that 
such plan will be, in whole or in part, an unfunded, unsecured obligation of 
Covance and administered by the Covance Compensation Committee. 
    

   
   Eligible executives may commence receiving full benefits under the plan 
upon attaining age 60, so long as they have completed at least twenty years 
of service with Corning or any subsidiary thereof. Retirement benefits to be 
provided under the plan will be based on 40% of an executive's "Final Average 
Pay," defined to mean the average of an executive's base salary plus bonus, 
taking into account the highest five consecutive years of the executive's 
last ten years of employment with Corning or any subsidiary thereof. Under 
the terms of the plan, executives may, with the approval of the Covance 
Compensation Committee, elect to commence receiving reduced benefits prior to 
age 60, provided that they have completed at least five years of service with 
Corning or any subsidiary thereof and have attained age 55. Benefits 
commencing prior to age 60 will be reduced by 5% of the amount of benefits 
earned for each year prior to age 60. For example, at age 55, an executive 
with at least twenty years of service may be eligible to receive 30% of Final 
Average Pay so long as the executive receives approval from the Covance 
Compensation Committee. 
    

   
   At retirement, the normal form of payment under the plan will be monthly 
payments over the lifetime of the executive (or actuarially reduced joint and 
survivor benefits over the joint lives of the executive and a named 
beneficiary). Alternatively, the executive may elect under the plan, subject 
to the approval of the Covance Compensation Committee, the right to receive 
an actuarially determined lump-sum distribution from the plan. 
    

   
   Maximum annual benefits, based on at least twenty years of service and the 
Final Average Pay calculated under the straight life annuity option form of 
pension, payable to participants at ages 55 to 60 are illustrated in the 
table set forth below. The table below does not reflect any limitations on 
benefits imposed by ERISA. 
    


<TABLE>
<CAPTION>
                                    Age (With at least 20 Years of Service) 
                         -------------------------------------------------------------- 
Final Average Pay          55        56         57         58         59         60 
- ---------------------   -------    -------    -------   -------    -------    --------- 
<S>                     <C>        <C>        <C>       <C>        <C>        <C>
$ 100,000                30,000     32,000     34,000    36,000     38,000      40,000 
  200,000                60,000     64,000     68,000    72,000     76,000      80,000 
  300,000                90,000     96,000    102,000   108,000    114,000     120,000 
  400,000               120,000    128,000    136,000   144,000    152,000     160,000 
  500,000               150,000    160,000    170,000   180,000    190,000     200,000 
  600,000               180,000    192,000    204,000   216,000    228,000     240,000 
  700,000               210,000    224,000    238,000   252,000    266,000     280,000 
  800,000               240,000    256,000    272,000   288,000    304,000     320,000 
  900,000               270,000    288,000    306,000   324,000    342,000     360,000 
1,000,000               300,000    320,000    340,000   360,000    380,000     400,000 
1,100,000               330,000    352,000    374,000   396,000    418,000     440,000 
1,200,000               360,000    384,000    408,000   432,000    456,000     480,000 
</TABLE>

   
   Covance Retirement Savings Plan. Most of the employees of Covance and its 
subsidiaries have been eligible to participate in a tax-qualified, defined 
contribution plan known as the Covance Retirement Savings Plan (the "Covance 
Retirement Savings Plan" to be renamed the "Covance Stock Purchase Savings 
Plan" prior to the Distribution Date), 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, Covance Common Stock will 
be added as an investment fund and all or a portion of the employer matching 
contributions will automatically be invested in Covance Common Stock. Corning 
Common Stock will no longer be available as an investment fund except with 
respect to amounts already so invested under the Covance Retirement Savings 
Plan. 
    

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


                                     148 
<PAGE> 

   
   Covance Employee Stock Ownership Plan. Covance 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 Covance 
Employee Stock Ownership Plan (the "Covance ESOP"). 
    

   
   Individuals who are active employees of Covance and its U.S. subsidiaries 
as of the Distribution Date will become participants in the Covance ESOP. To 
the extent permitted under the Covance ESOP, Covance will contribute as of 
the Distribution Date an amount equal to a portion of each participating 
employee's annual compensation. Covance may in its discretion from time to 
time make additional contributions to the Covance ESOP for the benefit of 
participating employees. The assets of the Covance ESOP will be invested 
primarily in shares of Covance Common Stock. 
    

   
   Amounts contributed to the Covance ESOP for the benefit of participating 
employees will be 100% vested on the earlier of death, disability or the 
second anniversary of the effective date of the grant. Contributions to the 
Covance ESOP will not currently be taxable income to the participating 
employees and will not generally be available to them until termination of 
employment. 
    

   
   Covance Restricted Share Plan. Covance has adopted, effective upon the 
Distributions, the Covance Restricted Share Plan, intended to provide to 
Covance's foreign national employees in its non-U.S. locations who otherwise 
are ineligible to participate in the Covance ESOP and to domestic employees 
whose participation therein is subject to limitations imposed by ERISA 
benefits similar to the Covance ESOP. To the extent permitted under the plan, 
Covance will award to participating employees shares of Covance Common Stock 
as of the Distribution Date, the market value of which shall equal a portion 
of such employee's annual compensation. Covance may in its discretion from 
time to time make additional awards to participating employees. Shares of 
Covance Common Stock awarded to participating employees will be 100% vested 
on the earlier of death, disability or the second anniversary of the date of 
each grant. 
    

   
   Covance Stock Purchase Plan. Covance has adopted, effective upon the 
Distributions, the Covance Stock Purchase Plan (the "Covance Stock Purchase 
Plan") pursuant to which Covance 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 Covance Stock Purchase Plan, which will be administered by the Covance 
Compensation Committee, is designed to give eligible employees (generally, 
employees of Covance and its U.S. subsidiaries) the opportunity to purchase 
shares of Covance 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, 2006. 
    

   
   Any eligible employee may elect to participate in the Covance 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 Covance 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 Covance 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 Covance Common Stock until such shares 
are actually purchased by him. 
    

   
   Under the Covance Stock Purchase Plan, the maximum number of shares of 
Covance Common Stock which may be purchased by eligible employees will be 
1,000,000, subject to adjustment in the case of changes in the capital stock 
of Covance resulting from any recapitalization, stock dividend, stock split 
or any other increase or decrease effected without receipt of consideration 
by Covance or a merger or consolidation in which Covance is the surviving 
corporation. 
    

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

   
                                     149 
<PAGE> 
    

   
   Severance and Change in Control Arrangements.  On or before the 
Distribution Date, Covance will adopt a severance policy pursuant to which it 
will provide to each named executive officer (other than Mr. Kuebler) 
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 in 
the event that such named executive officer has been terminated for reasons 
other than cause. Such named executive officer will also be entitled to 
participate in Covance'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, Covance will also provide to each named executive officer upon 
the termination of employment by Covance other than for cause following a 
change in control of Covance compensation equal to three times base annual 
salary in effect on the termination date and three times the annual variable 
compensation at the most recent target level and such officer will be 
entitled to participate in Covance's health and benefits plans for a period 
of up to three years. 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 Covance; as a result of a contested election a majority of 
the Covance Board members are different than the individuals who served on 
Covance's Board immediately prior to such contested election; or approval by 
Covance's shareholders of a merger or consolidation in which Covance is not 
the survivor thereof, or a sale or disposition of all or substantially all of 
Covance's assets or a plan of partial or complete liquidation. 
    


                                     150 
<PAGE> 

   
                        SECURITY OWNERSHIP BY CERTAIN 
                 BENEFICIAL OWNERS AND MANAGEMENT OF COVANCE 
    

   
   All of the outstanding shares of Covance Common Stock are currently held 
by CCL. The following table sets forth the number of shares of Covance Common 
Stock that are projected to be beneficially owned after the Covance Spin-Off 
Distribution by the directors, by the named executive officers and by all 
directors and executive officers of Covance 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 September 30, 1996 (excluding Career Shares that will be 
forfeited prior to the Distribution Date and Corning Common Stock held in the 
Covance Retirement Savings 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 Covance 
Common Stock, the number reflects the distribution ratio of one share of 
Covance Common Stock for every four 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 Covance will not affect the security ownership of 
Covance 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 Covance 
Common Stock. 
    


<TABLE>
<CAPTION>
                                       Number of Shares              Number of 
Name                                Beneficially Owned (1)      Exercisable Options 
- --------------------------------  -------------------------   ------------------------ 
<S>                               <C>                         <C>
Richard J. Andrews 
Robert M. Baylis 
Van C. Campbell 
Christopher A. Kuebler 
Kim D. Lamon 
Irwin Lerner 
J. Randall MacDonald 
Nigel Morris 
William C. Ughetta 
James D. Utterback 
Michael Wokasch 

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. 
    


                                     151 
<PAGE> 

   
                     DESCRIPTION OF COVANCE CAPITAL STOCK 
    


General 

   
   The following is a brief summary of certain provisions of the Covance 
Certificate, as the restated certificate of incorporation will be amended 
immediately prior to the Covance Spin-Off Distribution, and does not relate 
to or give effect to provisions of statutory or other law except as 
specifically stated. The Covance Certificate authorizes the issuance of 
140,000,000 shares of Covance Common Stock. Approximately 56,903,469 shares 
of Covance Common Stock are expected to be outstanding immediately following 
the Covance Spin-Off Distribution. The rights of holders of shares of Covance 
Common Stock are governed by the Covance Certificate, the Covance By-Laws and 
by the DGCL. 
    


Voting Rights 

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


Preemptive Rights 

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

   
Covance Common Stock 
    

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

   
   Dividend Policy. Subject to any preferential rights of any outstanding
preferred securities of Covance, such dividends as may be determined by the
Covance Board may be declared and paid on the shares of Covance Common Stock
from time to time out of any funds legally available therefor. Covance has no
present intention to declare dividends for the foreseeable future. It is
currently contemplated that, following the Distributions, Covance 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 Covance and such other considerations as the Covance Board deems
relevant. In addition, the Covance Credit Facility prohibits Covance from paying
cash dividends on the Covance Common Stock. See "Risk Factors--Risks Relating to
Covance--Absence of Dividends" and "Description of Certain Indebtedness of
Covance."
    

   
   Other Provisions. The shares of Covance Common Stock have no redemption, 
sinking fund or conversion privileges applicable thereto and holders of 
shares of Covance 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 Covance Common Stock although a "when issued" market 
is expected to develop prior to the Distribution Date. Application will be 
made to list the Covance Common Stock on the NYSE, subject to official notice 
of the Distributions, under the trading symbol "   ". Prices at which Covance 
Common Stock may trade prior to the Distributions on a "when- issued" basis 
or after the Distributions cannot be predicted. Until shares of the Covance 
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 Covance 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 Covance Common Stock, investor 
perceptions of Covance, the contract research business, and general economic 
and market conditions. Covance initially will have approximately 
stockholders of record, based on the expected number of holders of CCL Common 
Stock immediately following the CCL Spin-Off Distribution. The Transfer Agent 
and Registrar for the Covance Common Stock will be Harris Trust and Savings 
Bank. For certain information regarding options to purchase Covance Common 
Stock that may become outstanding after the Distributions, see "Management of 
Covance." 
    


                                     152 
<PAGE> 

   
Covance Series Preferred Stock 
    

   
   The Covance Certificate authorizes the issuance of up to 10,000,000 shares 
of Covance Series Preferred Stock, par value $    per share (the "Covance 
Series Preferred Stock"). The Covance Board has the authority to issue such 
shares from time to time, without stockholder approval, and to determine the 
designations, preferences, rights, including voting rights, and restrictions 
of such shares, subject to the DGCL. Pursuant to this authority, the Covance 
Board has designated 1,000,000 shares of Covance Series Preferred Stock as 
Covance Series A Preferred Stock. No other class of Covance Series Preferred 
Stock has been designated by the Covance Board. 
    


Preferred Share Purchase Rights 

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

   
   The Covance Rights represented by the certificates for shares of Covance 
Common Stock are not exercisable, and are not transferable apart from the 
shares of Covance Common Stock, until the earlier of (1) ten days following 
the public announcement by Covance or an Acquiring Person (as defined below) 
that a person or group has acquired beneficial ownership of 20% or more of 
the shares of Covance Common Stock (an "Acquiring Person") or (2) ten 
business days (or such later date as the Covance 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 Covance Common Stock (the 
earlier of such dates being called the "Rights Distribution Date"). The 
Covance Board has the authority to determine that a person that has 
inadvertently acquired beneficial ownership of 20% of the shares of Covance 
Common Stock is not an Acquiring Person if such person promptly reduces its 
ownership interest to below 20%. Separate certificates for the Covance Rights 
will be mailed to holders of record of the shares of Covance Common Stock as 
of such date. The Covance Rights could then begin trading separately from the 
shares of Covance Common Stock. 
    

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

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

   
   The exercise price payable, and the number of shares of Covance Series A 
Preferred Stock or other securities or property issuable, upon exercise of 
the Covance 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 Covance Series A Preferred 
Stock, (ii) upon the grant to holders of the shares of Covance Series A 
Preferred Stock of certain rights or warrants to subscribe for or purchase 
shares of Covance Series A Preferred Stock at a price, or securities 
convertible into shares of Covance Series A Preferred Stock with a conversion 
price, less than the then current market price of the shares of Covance 
Series A Preferred Stock or (iii) upon the distribution to holders of 
    


                                     153 
<PAGE> 

   
the shares of Covance 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 Covance Series A 
Preferred Stock) or of subscription rights or warrants (other than those 
referred to above). 
    

   
   The number of outstanding Covance Rights and the number of one 
one-hundredths of a share of Covance Series A Preferred Stock issuable upon 
exercise of each Covance 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 Covance Common Stock prior to the Covance 
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 Covance Rights, no fractional shares of Covance 
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 Covance, be evidenced by depository receipts) and in lieu thereof 
an adjustment in cash will be made. 
    

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

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

   
   The foregoing description of the Covance Rights does not purport to be 
complete and is qualified in its entirety by reference to the description of 
the Covance Rights contained in the Covance Rights Agreement, dated as of 
    , 1996 between Covance and the Covance Rights Agent, which agreement will 
be filed as an exhibit to Covance's registration statement on Form 10 (the 
"Covance Form 10") that Covance has filed with the Commission. Prior to the 
Covance Rights Distribution Date, the Covance Rights Agreement may be amended 
in any respect. After the Covance Rights Distribution Date, the Covance 
Rights Agreement may be amended in any respect that does not adversely affect 
the Covance Rights holders. 
    


Restrictions on Transfer 

   
   Shares of the Covance Common Stock distributed to CCL stockholders will be 
freely transferable, except for shares received by any persons who may be 
deemed to be "affiliates" of Covance 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 
Covance after the Covance Spin-off Distribution generally include individuals 
or entities that control, are controlled by, or are under common control with 
Covance and may include certain officers and directors of Covance as well as 
principal stockholders of Covance. Persons who are affiliates of Covance will 
be permitted to sell their shares of Covance 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 
    


                                     154 
<PAGE> 

   
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 Covance 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 Covance 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. 
    

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


General 

   
   In addition to the Covance Rights, the Covance Certificate and the Covance 
By-Laws contain other provisions that may discourage a third-party from 
seeking to acquire Covance, 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 Covance Board and in the policies 
formulated by the Covance Board and to discourage certain types of 
transactions that may involve an actual or threatened change of control of 
Covance. These provisions are designed to reduce the vulnerability of Covance 
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 Covance 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 Covance. See "Risk 
Factors--Risks Relating to Covance--Certain Provisions Relating to Change in 
Control." 
    


Board of Directors 

   
   The Covance Certificate provides that, effective as of the Covance 
Spin-Off Distribution, the Covance 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 Covance; the second class has a 
term expiring at the 1999 annual meeting of stockholders of Covance; and the 
third class has a term expiring at the 2000 annual meeting of stockholders of 
Covance. At each annual meeting of stockholders, one class of the Covance 
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 
Covance Board. At least two annual meetings of stockholders, instead of one, 
generally will be required to effect a change in the majority of the Covance 
Board. The Covance Board believes that the longer time required to elect a 
majority of a classified board will help ensure the continuity and stability 
of Covance'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 
Covance. 
    

   
   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 Covance Certificate provides that a director of 
Covance is only removable by the stockholders for cause. The Covance 
Certificate limits the number of directors to twelve and requires that any 
vacancies on the Covance Board be filled only by a majority of the entire 
Covance Board. The provisions of the DGCL and the Covance Certificate 
relating to the removal of directors and the filling of vacancies on the 
Covance Board preclude a third-party from removing incumbent directors 
without cause and simultaneously gaining control of the Covance 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 Covance, to remove incumbent directors and to fill 
vacancies on the Covance Board without the support of the incumbent 
directors. 
    


Stockholder Action and Special Meetings 

   
   The Covance 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 Covance stockholders and 
precludes a stockholder of Covance from conducting any form of consent 
solicitation. The Covance Certificate also does not permit stockholders of 
Covance to call special meetings of stockholders. 
    


                                     155 
<PAGE> 

Advance Notice Requirements for Stockholder Proposals and Director 
Nominations 

   
   The Covance By-Laws contain an advance notice procedure with respect to 
the nomination, other than by or at the direction of the Covance 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 Covance 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. Although the notice provisions do not give the 
Covance Board any power to approve or disapprove stockholder nominations or 
proposals for action by Covance, 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 Covance 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 Covance and its stockholders. The 
purpose of requiring advance notice is to afford the Covance 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 Covance Board, to inform stockholders about those matters. 
    


Business Combinations with Interested Stockholders 

   
   Paragraph 6 of the Covance 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 Covance entitled to vote generally in the 
election of directors (the "Covance 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 Covance 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 Covance or any subsidiary with an Interested 
Stockholder; (ii) the sale or other disposition by Covance 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 Covance 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 Covance 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 Covance 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 Covance Board 
who is not an Interested Stockholder or affiliated or associated with an 
Interested Stockholder and was a director of Covance 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 Covance Board, or (ii) any person who was a 
director of Covance as of the Distribution Date and any successor thereto who 
was recommended or elected by a majority of the Continuing Directors then on 
the Covance Board. It is possible that the approval of a majority of the 
Continuing Directors could be obtained in circumstances where the Continuing 
Directors constitute less than a quorum of the entire Covance 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. 

                                     156 
<PAGE> 

   
   Minimum Price and Form of Consideration Requirements. In a Business 
Combination involving cash or other consideration being paid to Covance's 
stockholders, the consideration required, in the case of each class of 
Covance Voting Stock, would be either cash or the same type of consideration 
used by the Interested Stockholder in acquiring the largest portion of its 
shares of that class of Covance 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 Covance 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 in acquiring any shares of Covance 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 Covance 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 voting Covance 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 Covance Common 
Stock and (ii) the highest preferential amount per share to which the holders 
of such series of Covance Series Preferred Stock are entitled in the event of 
a voluntary or involuntary liquidation of Covance. 
    

   
   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 Covance'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 Covance, 
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 Covance Voting Stock, directly from 
Covance 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 Covance (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 Covance Certificate 
    

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

                                     157 
<PAGE> 

   
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, 
or (iii) the business combination is approved by a majority of the board of 
directors and by the affirmative vote of 662/3% of the votes entitled to be 
cast by disinterested stockholders at an annual or special meeting. The 
Covance Certificate and the Covance By-Laws do not exclude Covance 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 Covance capital stock or assets of Covance for a 
period of time following the Covance 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 Covance. 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." 
    


                                     158 
<PAGE> 

   
                DESCRIPTION OF CERTAIN INDEBTEDNESS OF COVANCE 
    

   
   Covance is currently negotiating with several banks and financial 
institutions (the "Lenders") for a five year $250,000,000 Senior Revolving 
Credit Facility (the "Covance Credit Facility") due November    2001, 
pursuant to a credit agreement (the "Credit Agreement") to be entered into 
prior to the Covance Spin-Off Distribution, with the Lenders, NationsBank 
N.A. ("NationsBank"), as Administrative Agent and Wachovia Bank of Georgia, 
N.A., as Syndication Agent (collectively, the "Agents"). A copy of the 
proposed form of the Credit Agreement will be filed as an exhibit to the 
Covance Form 10. This summary of the terms and conditions of the Covance 
Credit Facility and the Credit Agreement does not purport to be complete and 
is qualified in its entirety by reference to such proposed form of Credit 
Agreement, including the definitions therein of certain terms. 
    

   
   The Covance Credit Facility will be unsecured and will be guaranteed by 
certain U.S. Subsidiaries (the "Guarantors") which are Material Subsidiaries 
(defined as Subsidiaries who, individually have assets equal to at least 10% 
the assets of the Borrower and its Subsidiaries, and which together with the 
assets of the Borrower must aggregate 90% of the total assets of the Borrower 
and its U.S. Subsidiaries). The proceeds of the Covance Credit Facility will 
be used to effect the Covance Spin-Off Distribution, including the 
refinancing of certain intercompany indebtedness and taxes owed to Corning 
and to provide financing for Covance's working capital needs, capital 
expenditures and permitted lawful acquisitions after the Covance Spin-Off 
Distribution. The Covance Credit Facility will have a letter of credit 
subfacility of $10 million, with NationsBank as Issuing Bank. 
    

   
   Principal is not scheduled to be repaid until the termination of the 
Covance Credit Facility and the Borrower may prepay amounts owed in whole or 
in part, subject to reimbursement of the Lender's breakage costs associated 
with Eurocurrency borrowings. Borrowings may be made in a minimum amount of 
(i) $5,000,000 and in integral multiples of $1,000,000 in excess thereof with 
respect to Eurocurrency Loans, and (ii) $1,000,000 and in integral multiples 
of $100,000 in excess thereof with respect to Base Rate Loans. The Borrower 
has the option of one, two, three or six month Interest Periods with respect 
to Eurocurrency Loans. 
    

   
Interest and Fees 
    

   
   Borrowings under the Covance Credit Facility may be made in U.S. Dollars, 
British Pounds Sterling, German Deutschemarks, Swiss Francs or Japanese Yen, 
and will bear interest at a rate per annum equal to (i) the Base Rate 
(defined as the higher of (a) the NationsBank prime rate and (b) the Federal 
Funds Rate plus .50%), or (ii) the Eurocurrency Rate plus the Applicable 
Margin. The Eurocurrency Rate is the average rate per annum at which deposits 
in U.S. Dollars, or any other applicable currency, are offered by reference 
banks in the London interbank market for amounts approximately equal to such 
Lender's pro rata share of the Loan for the applicable Interest Period, as 
adjusted for reserve requirements. The Applicable Margin is a percentage per 
annum which will vary after March 31, 1997 and, at the Borrower's option, 
will be based upon either (i) the lowest debt rating announced by Standard & 
Poor's Ratings Group or Moody's Investors Service, Inc., as the case may be 
(the "Public Debt Rating"), as of the Calculation Date [or, at the Borrower's 
option, an interim date], for any class of long-term senior unsecured debt 
without credit enhancement issued by the Borrower or (ii) the Borrower's 
Leverage Ratio (defined as the Ratio of Funded Debt to EBITDA (see below for 
definitions of each) for the twelve month period ending on the preceding 
quarter as calculated on the Calculation Date [or, at the Borrower's option, 
an interim date]). The Applicable Margin will initially be .25% through March 
31, 1997, but may vary between .17% and .45% thereafter. The credit agreement 
also provides that the Borrower may alternatively, at its option, solicit 
competitive bids from the Lenders. Such Competitive Bid Loans would bear 
interest at either the Fixed Rate offered by a Lender and accepted by the 
Borrower, or the Eurocurrency Rate for the applicable Interest Period plus 
the margin offered by a Lender and accepted by the Borrower. 
    

   
   The Borrower will pay the Issuing Lender a fee of 1/8% on the aggregate 
outstanding of all Letters of Credit issued, plus, for the pro rata benefit 
of the Lenders, Letter of Credit Fees calculated and paid in the same manner 
and at the same percentages as Eurocurrency Loans which are not Competitive 
Bid Loans. The Credit Agreement also requires the quarterly payment of a 
Facility Fee based on the Applicable Percentage multiplied by the aggregate 
Commitment. The Facility Fee will initially be .125% through March 31, 1997 
but may range between .08% and .20% thereafter. 
    

   
Covenants and Conditions 
    

   
   The Credit Agreement has covenants which place restrictions on the 
Borrower and the Guarantors (the "Credit Parties") with respect to (i) the 
incurrence of additional indebtedness (subject to limitations, including 
limitations 
    

   
                                     159 
<PAGE> 
    

   
on dollar amount, except for working capital indebtedness incurred in the 
ordinary course of business which is not overdue or is being disputed in good 
faith, intercompany indebtedness, indebtedness incurred in connection with 
permitted liens, guaranties, certain sale/leaseback transactions and certain 
capital expenditures), (ii) the incurrence of additional liens (other than 
certain permitted statutory liens and liens on permitted indebtedness), (iii) 
material changes in the nature of the Credit Parties' business, (iv) mergers 
and consolidations (other than between Credit Parties, subject to 
restrictions), (v) entry into certain sale/leaseback transactions, (vi) 
investments (subject to limitations, including limitations on dollar amount, 
other than in cash or cash equivalents, working capital investment in 
receivables and inventory, intercompany investment in other Credit Parties 
and their Subsidiaries and capital expenditures), (vii) the payment of 
dividends except pursuant to benefits plans and the Rights Plan and (viii) 
the incurrence of restrictions on the ability to pay dividends, repay debt 
under the credit agreement or make intercompany loans and advances (except as 
imposed or incurred pursuant to the Covance Spin-Off Distribution). 
    

   
   The Credit Agreement will have financial covenants which require Covance 
to maintain a ratio (the "Fixed Charge Coverage Ratio") of EBIT plus all rent 
payable under operating leases ("Rent Expense") to cash Interest Expense plus 
Rent Expense of 1.50 to 1.0 and not exceed a maximum ratio (the "Leverage 
Ratio") of Funded Debt to EBITDA of 3.50 to 1.0. For purposes of the Fixed 
Charge Coverage Ratio, EBIT is defined as consolidated net income (net of the 
one-time restructuring charge associated with the Covance Spin-Off 
Distribution), plus income tax expense and interest expense. For purposes of 
the Leverage Ratio, Funded Debt is defined as obligations maturing or 
extendable for more than one year after they arise for (i) indebtedness 
respect to borrowed money, (ii) purchase money indebtedness, (iii) capital 
lease obligations, and (iv) letter of credit obligations incurred by the 
Credit Parties and its Subsidiaries and any partnership or joint venture to 
which they are obligated, and EBITDA is defined as EBIT plus depreciation and 
amortization expense. 
    

   
   The Covance Credit Facility is subject to a number of conditions, 
including among other things (i) execution of the Credit Documents in form 
acceptable to the Agents, (ii) the completion of due diligence by the Agents, 
(iii) receipt by the Agent of certain documents in connection with the 
Covance Spin-Off Distribution, including receipt of the IRS Ruling and 
executed employment agreements, and within    months, copies of the 
Transaction Agreement, the Tax Sharing Agreement, the relevant Spin-Off Tax 
Indemnification Agreements, evidence of repayment of intercompany loans and a 
copy of the Covance Form 10 which has been declared effective by the 
Commission, (iv) the expiration of all waiting periods in connection with the 
Covance Spin-Off Distribution, (v) the absence of any disruption or adverse 
change in the financial or capital markets which the Agents deem material in 
connection with the syndication of the credit facility and (vi) there shall 
have occurred no material adverse change in the Borrower's financial 
condition or results of operations. 
    

   
   The proceeds of the Covance Credit Facility will be used to effect the 
Covance Spin-Off Distribution, including the refinancing of certain 
indebtedness and taxes owed to Corning (of, assuming the Covance Spin-Off 
Distribution and borrowing occurred on September 30, 1996, approximately 
$128.2 million) and to provide financing for Covance's working capital needs, 
capital expenditures and permitted lawful acquisitions after the Covance 
Spin-Off Distribution. Covance estimates that its debt at the Distribution 
Date will be approximately $135 million to $145 million. The Covance Credit 
Facility is expected to mature in November 2002. The Distributions are 
conditioned on the closing of the Covance Credit Facility. 
    


                                     160 
<PAGE> 

   
                       LIABILITY AND INDEMNIFICATION OF 
                      DIRECTORS AND OFFICERS OF COVANCE 
    


Limitation on Liability of Directors 

   
   Pursuant to authority conferred by Section 102 of the DGCL, Paragraph 11 
of the Covance Certificate ("Paragraph 11") eliminates the personal liability 
of Covance's directors to Covance or its stockholders for monetary damages 
for breach of fiduciary duty, including without limitation, directors serving 
on committees of the Covance Board. Directors remain liable for (1) any 
breach of the duty of loyalty to Covance 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 Covance'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 and 
officers of Covance or (2) by reason of the fact that, while they are or were 
directors or officers of Covance, they are or were serving at the request of 
Covance 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 Covance 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. Covance may not indemnify or make advance payments to any 
person in connection with proceedings initiated against Covance by such 
person without the authorization of the Covance 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 Covance 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 Covance By-Laws, any agreement or vote of 
stockholders or disinterested directors or otherwise, and allows Covance 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, Covance 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 Covance Certificate authorizes Covance to purchase insurance for 
directors, officer, employees and agents of Covance and persons who serve at 
the request of Covance as directors, officers, employees or agents of another 
corporation against any expense, liability or loss incurred in such capacity, 
whether or not Covance would have the power to indemnify such persons against 
such expense or liability under the DGCL. Covance intends to maintain 
insurance coverage of its officers and directors as well as insurance 
coverage to reimburse Covance for potential costs of its corporate 
indemnification of directors and officers. 
    


                                     161 
<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 COVANCE INC. 
Report of Price Waterhouse LLP--Independent Accountants                                                    F-29 
Combined Financial Statements: 
 Combined Balance Sheets--December 31, 1995 and 1994                                                       F-30 
 Combined Statements of Income--Years ended December 31, 1995, 1994 and 1993                               F-31 
 Combined Statements of Cash Flows--Years ended December 31, 1995, 1994 and 1993                           F-32 
 Combined Statements of Stockholder's Equity--Years ended December 31, 1995, 1994 and 1993                 F-33 
 Notes to Combined Financial Statements                                                                    F-34 
 Quarterly Operating Results (unaudited)                                                                   F-40 
Interim Combined Financial Statements (unaudited): 
 Combined Balance Sheets--September 30, 1996 and December 31, 1995                                         F-41 
 Combined Statements of Income--Three and Nine Months ended September 30, 1996 and 1995                    F-42 
 Combined Statements of Cash Flows--Nine Months ended September 30, 1996 and 1995                          F-43 
 Notes to Combined Interim Financial Statements                                                            F-44 
</TABLE>
    

                                     F-1 
<PAGE> 

   
                      REPORT OF INDEPENDENT ACCOUNTANTS 
    

   
   To the Boards of Directors and Stockholders of Corning Incorporated and 
Covance Inc. 
    

   
   In our opinion, the accompanying combined balance sheets and the related 
combined statements of income, of cash flows and of stockholder's equity 
appearing on pages F-30 through F-40 present fairly, in all material 
respects, the financial position of Covance Inc. and its subsidiaries (an 
indirect 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 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 provide a reasonable basis for the opinion expressed above. 
    

Price Waterhouse LLP 
New York, NY 
July 29, 1996 

The accompanying notes are an integral part of these statements. 

                                     F-29 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                           COMBINED BALANCE SHEETS 
                          DECEMBER 31, 1995 AND 1994 
    


<TABLE>
<CAPTION>
 (Amounts in thousands)                              1995         1994 
                                                  ----------   ---------- 
<S>                                                <C>          <C>
Assets 
Current Assets: 
  Cash and cash equivalents                        $  8,068     $  6,176 
Accounts receivable, net                             78,968       66,781 
Unbilled services                                    18,217       13,194 
Inventory                                            14,004       10,729 
Deferred income taxes                                11,337       10,033 
Prepaid expenses and other assets                    15,189       11,849 
                                                    --------    --------- 
 Total Current Assets                               145,783      118,762 
Property and equipment, net                         140,708      126,483 
Goodwill, net                                        24,028       15,880 
Other assets                                         11,991       10,867 
                                                    --------    --------- 
 Total Assets                                      $322,510     $271,992 
                                                    ========    ========= 
Liabilities and Stockholder's Equity 
Current Liabilities: 
Trade accounts payable                             $ 23,761     $ 16,690 
Accrued payroll and benefits                         20,339       15,775 
Accrued expenses and other liabilities               24,701       16,243 
Unearned revenue                                     41,879       49,135 
Income taxes payable                                 16,631        7,958 
                                                    --------    --------- 
 Total Current Liabilities                          127,311      105,801 
Due to Corning Incorporated and affiliates           89,836       75,178 
Deferred income taxes                                 6,406        9,605 
Other liabilities                                    16,440       17,500 
                                                    --------    --------- 
 Total Liabilities                                  239,993      208,084 
                                                    --------    --------- 
Commitments and Contingent Liabilities 
Stockholder's Equity: 
Contributed capital                                  30,816       26,528 
Retained earnings                                    48,653       34,656 
Cumulative translation adjustment                     3,048        2,724 
                                                    --------    --------- 
  TOTAL STOCKHOLDER'S EQUITY                         82,517       63,908 
                                                    --------    --------- 
  TOTAL LIABILITIES AND STOCKHOLDER'S EQUITY       $322,510     $271,992 
                                                    ========    ========= 
</TABLE>

  The accompanying notes are an integral part of these financial statements. 

                                     F-30 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                        COMBINED STATEMENTS OF INCOME 
             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993 
    


<TABLE>
<CAPTION>
 (Amounts in thousands)                               1995        1994        1993 
                                                   ----------  ----------   ---------- 
<S>                                                 <C>         <C>         <C>
Net revenues                                        $409,174    $319,501    $289,697 
Cost and expenses 
 Cost of revenue                                     270,726     213,490     192,783 
 Selling, general and administrative expenses         64,201      48,892      42,949 
 Restructuring charge                                  4,616          --          -- 
 Depreciation and amortization                        22,070      18,520      16,984 
                                                     --------    --------    --------- 
   Total                                             361,613     280,902     252,716 
                                                     --------    --------    --------- 
Income from operations                                47,561      38,599      36,981 
                                                     --------    --------    --------- 
Other expense (income) 
 Interest expense, net                                 5,269       4,307       4,421 
 Foreign exchange (gain) loss                           (784)       (712)        852 
                                                     --------    --------    --------- 
                                                       4,485       3,595       5,273 
                                                     --------    --------    --------- 
Income before taxes and equity investee loss          43,076      35,004      31,708 
Taxes on income                                       18,445      14,924      13,506 
Equity investee loss                                     405         435       1,391 
                                                     --------    --------    --------- 
Net income                                          $ 24,226    $ 19,645    $ 16,811 
                                                     ========    ========    ========= 
</TABLE>

  The accompanying notes are an integral part of these financial statements. 

                                     F-31 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                      COMBINED STATEMENTS OF CASH FLOWS 
             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993 
    


<TABLE>
<CAPTION>
(Amounts in thousands)                              1995        1994        1993 
                                                  ----------  ----------   ---------- 
<S>                                                <C>         <C>         <C>
Cash flows from operating activities 
Net income                                         $ 24,226    $ 19,645    $ 16,811 
Adjustments to reconcile net income to net 
cash provided by operating activities: 
   Depreciation and amortization                     22,070      18,520      16,984 
   Restructuring reserve, net of cash paid            2,965          --          -- 
   Deferred income tax provision                     (4,503)     (1,502)     (2,879) 
   Related party charges                              3,288       3,504       4,443 
   Other                                              1,266       1,375       2,276 
Changes in operating assets and liabilities 
   Accounts receivable                              (10,082)    (11,706)     (8,814) 
   Unbilled services                                 (5,023)      2,058      (1,973) 
   Inventory                                         (2,576)       (603)        378 
   Accounts payable                                   6,783       4,372        (898) 
   Accrued liabilities                               11,669       7,550       3,058 
   Unearned revenue                                  (7,556)      2,894       1,607 
   Income taxes payable                               8,673         194       4,351 
   Other assets and liabilities, net                 (6,094)     (3,369)      5,156 
                                                    --------    --------    --------- 
Net cash provided by operating activities            45,106      42,932      40,500 
                                                  ----------  ----------   ---------- 
Cash flows from investing activities 
   Capital expenditures                             (34,792)    (25,242)    (24,893) 
   Acquisition of businesses                        (14,000)    (10,789)         -- 
   Other, net                                           571      (2,432)        351 
                                                  ----------  ----------   ---------- 
Net cash used in investing activities               (48,221)    (38,463)    (24,542) 
                                                  ----------  ----------   ---------- 
Cash flows from financing activities 
   Due to Corning Incorporated and affiliates           236      (4,710)     (8,677) 
   Acquisition loan from Corning Incorporated        14,000      10,789          -- 
   Capital contributions                              1,000          --          -- 
   Dividends paid                                   (10,229)     (9,465)     (8,681) 
                                                  ----------  ----------   ---------- 
Net cash provided by (used in) financing 
 activities                                           5,007      (3,386)    (17,358) 
                                                  ----------  ----------   ---------- 
Net change in cash and cash equivalents               1,892       1,083      (1,400) 
Cash and cash equivalents, beginning of year          6,176       5,093       6,493 
                                                  ----------  ----------   ---------- 
Cash and cash equivalents, end of year             $  8,068    $  6,176    $  5,093 
                                                  ==========  ==========   ========== 
</TABLE>

  The accompanying notes are an integral part of these financial statements. 

                                     F-32 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                 COMBINED STATEMENTS OF STOCKHOLDER'S EQUITY 
             FOR THE YEARS ENDED DECEMBER 31, 1995, 1994 AND 1993 
    


<TABLE>
<CAPTION>
                                                                 Cumulative         Total 
                                     Contributed    Retained    Translation     Stockholder's 
(Amounts in thousands)                 Capital      Earnings     Adjustment        Equity 
                                    -------------  ----------  -------------  ---------------- 
<S>                                    <C>          <C>            <C>            <C>
Balance, December 31, 1992             $18,581      $ 16,346       $2,270         $ 37,197 
Net income                                  --        16,811           --           16,811 
Dividends paid                              --        (8,681)          --           (8,681) 
Capital contribution                     4,443            --           --            4,443 
Currency translation adjustment             --            --         (382)            (382) 
                                       -----------   --------     -----------    -------------- 
Balance, December 31, 1993              23,024        24,476        1,888           49,388 
Net income                                  --        19,645           --           19,645 
Dividends paid                              --        (9,465)          --           (9,465) 
Capital contribution                     3,504            --           --            3,504 
Currency translation adjustment             --            --          836              836 
                                       -----------   --------     -----------    -------------- 
Balance, December 31, 1994              26,528        34,656        2,724           63,908 
Net income                                  --        24,226           --           24,226 
Dividends paid                              --       (10,229)          --          (10,229) 
Capital contribution                     4,288            --           --            4,288 
Currency translation adjustment             --            --          324              324 
                                       -----------   --------     -----------    -------------- 
Balance, December 31, 1995             $30,816      $ 48,653       $3,048         $ 82,517 
                                       ===========   ========     ===========    ============== 
</TABLE>

  The accompanying notes are an integral part of these financial statements. 

                                     F-33 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                    NOTES TO COMBINED FINANCIAL STATEMENTS 
              (Dollars in thousands, unless otherwise indicated) 
1. Organization 

   
   Covance Inc. (formerly Corning Pharmaceutical Services Inc.) and its 
subsidiaries ("Covance") is a leading contract research organization 
providing a wide range of integrated product development services on a 
worldwide basis to the biotechnology, pharmaceutical and medical device 
industries. In addition, and to a lesser extent, Covance provides services 
such as health economics for managed care organizations, hospitals and health 
care provider networks, and early development and laboratory testing services 
to the chemical, agrochemical and food industries. Covance's operations 
involve a single industry segment for financial reporting purposes. At the 
present time, operations are principally focused in the United States and 
Europe. 
    

   
   Covance is an indirect wholly-owned business of Corning Incorporated 
("Corning"). In May 1996, Corning's Board of Directors approved a plan to 
distribute to its stockholders on a pro rata basis all of the shares of 
Covance (the "Covance Spin-Off Distribution"). The result of the plan will be 
the creation of an independent, publicly-owned (but as yet unnamed) company. 
Corning has submitted to the Internal Revenue Service a request for a ruling 
that the Covance Spin-Off Distribution will qualify as a tax free 
distribution under the Internal Revenue Code of 1986, as amended. The final 
terms of the Covance Spin-Off Distribution, which are subject to approval by 
Corning's Board of Directors, will be set forth in a registration statement 
to be filed with the Securities and Exchange Commission and in an Information 
Statement to be distributed to Corning's stockholders. The Covance Spin-Off 
Distribution is expected to occur by the end of 1996. 
    


2. Summary of Significant Accounting Policies 

   Basis of Presentation 

   
   The operations of Covance Biotechnology (formerly Corning Bio), a 
majority-owned business of Corning which Corning intends to contribute to 
Covance prior to the Covance Spin-Off Distribution, are included in the 
accompanying financial statements. Accordingly, the accompanying financial 
statements present the results of Covance and Covance Biotechnology on a 
combined basis. 
    

   Principles of Consolidation 

   
   The combined financial statements include the accounts of all entities 
controlled by Covance, including Covance Biotechnology. All significant 
intercompany accounts and transactions are eliminated. The equity method of 
accounting is used for investments in affiliates in which Covance owns 
between 20 and 50 percent. 
    

   Use of Estimates 

   The preparation of financial statements in conformity with generally 
accepted accounting principles requires management to make estimates and 
assumptions that affect the reported amounts of assets and liabilities, 
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 these estimates. 

   Foreign Currencies 

   For subsidiaries outside of the United States that operate in a local 
currency environment, assets and liabilities are translated to United States 
dollars at year-end exchange rates. Income and expense items are translated 
at average rates of exchange prevailing during the year. Translation 
adjustments are accumulated in a separate component of stockholder's equity. 
Transaction gains and losses are included in the determination of income. 

   Cash and Cash Equivalents 

   Cash and cash equivalents include all highly liquid investments with an 
original maturity of three months or less at date of purchase and consist 
principally of amounts temporarily invested in money market funds. 

   Financial Instruments 

   The fair value of cash, accounts receivable, trade accounts payable and 
accrued expenses are not materially different than their carrying amounts as 
reported at December 31, 1995 and 1994. 

                                     F-34 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (Dollars in thousands, unless otherwise indicated) 

   
   Accounts receivable and unbilled services from Covance customers are 
concentrated primarily in the pharmaceutical and biotechnology industries. 
Covance monitors the creditworthiness of its customers to which it grants 
credit terms in the ordinary course of business. Although Covance customers 
are concentrated primarily within these two industries, management considers 
the likelihood of material credit risk exposure as remote. Covance in some 
cases requires advance payment for a portion of the contract price from its 
customers upon the signing of a contract for services. Historically, bad 
debts have been minimal. 
    

   Inventory 

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

   Property and Equipment 

   Property 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 estimated useful lives, which range 
in term from three to thirty years. 

   Goodwill 

   Goodwill (investment costs in excess of the fair value of net tangible 
assets acquired) is capitalized and amortized over the period expected to be 
benefited, generally forty years. 

   Impairment of Long-Lived Assets 

   
   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 No. 121"), was adopted in 1995. Assessments of the recoverability of 
long-lived assets are conducted when events or changes in circumstances occur 
that indicate that the carrying value of the asset may not be recoverable. 
The assessment of possible impairment is based upon the ability to recover 
the asset from the expected future undiscounted cash flows of related 
operations. The policy on impairment prior to the adoption of SFAS No. 121 
was not materially different. 
    

   Revenue Recognition 

   
   Revenue is recognized using the cost-to-cost type of 
percentage-of-completion method of accounting for services rendered in 
connection with contractual arrangements, which generally range from a few 
months to two years. Revenue is recognized as costs are incurred on the basis 
of the relationship between costs incurred and total estimated costs. Most 
service contracts may be terminated for a variety of reasons by Covance's 
customers either immediately or upon notice. The contracts often require 
payments to Covance to recover costs incurred, including costs to wind down 
the study and fees earned to date, and in some cases to provide Covance with 
a portion of the fees or profits that would have been earned under the 
contract had the contract not been terminated early. Contracts may contain 
provisions for renegotiation in the event of cost overruns due to changes in 
the level of work scope. Renegotiated amounts are included in revenue when 
earned and realization is assured. Provisions for losses to be incurred on 
contracts are recognized in full in the period in which it is determined that 
a loss will result from performance of the contractual arrangement. 
    

   Revenue from performing clinical laboratory testing services is recognized 
as tests are completed. Revenue from other activities is recognized as 
services are performed or products are shipped. 

   
   Unbilled receivables are recorded for revenue recognized to date that is 
currently unbillable to the customer pursuant to contractual terms. In 
general, amounts become billable upon the achievement of milestones or in 
accordance with predetermined payment schedules. Unbilled receivables are 
billable to customers within one year from the respective balance sheet date. 
Unearned revenue is recorded for advance billings to customers for which 
revenue has not been recognized at a given date. 
    

   
   Covance routinely subcontracts with independent physician investigators in 
connection with multi-site clinical trials. Investigator fees are not 
reflected in revenue or expense since such fees are granted by customers on a 
"pass- thru basis" without risk or reward to Covance. 
    


                                     F-35 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (Dollars in thousands, unless otherwise indicated) 

   Costs and Expenses 

   Cost of revenue generally includes appropriate amounts necessary to 
complete the revenue earning process which encompass direct labor and related 
benefit charges, other direct costs and allocable expenses (including 
facility charges, indirect labor and information technology costs). Selling, 
general and administrative expenses primarily consist of administrative 
payroll and related benefit charges, advertising and promotional expenses, 
administrative travel and allocable expenses (facility charges and 
information technology costs). Advertising expense is recognized as incurred. 

   Taxes on Income 

   
   Covance uses the asset and liability method of accounting 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 the temporary differences 
are expected to reverse. The effect on deferred taxes of a change in enacted 
tax rates is recognized in income in the period when the change is effective. 
    


3. Property and Equipment 

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

<TABLE>
<CAPTION>
                                                         1995         1994 
                                                     -----------  ------------ 
<S>                                                    <C>          <C>
Property and equipment at cost: 
 Land                                                  $   2,996    $   2,746 
 Buildings and improvements                              105,291       94,549 
 Equipment                                               101,686       90,117 
 Furniture, fixtures & leasehold improvements             39,622       36,393 
 Construction-in-progress                                  5,861        6,486 
                                                        ---------   ---------- 
                                                         255,456      230,291 
Less: Accumulated depreciation and amortization         (114,748)    (103,808) 
                                                        ---------   ---------- 
Property and equipment                                 $ 140,708    $ 126,483 
                                                        =========   ========== 
</TABLE>

   Depreciation and amortization expense aggregated $20.8 million, $17.8 
million and $16.5 million for 1995, 1994 and 1993, respectively. 

4. Acquisitions and Goodwill 

   
   In April 1994, Covance acquired SciCor S.A., a provider of laboratory 
testing services domiciled in Switzerland, for total consideration of 
approximately $10.8 million in a transaction accounted for as a purchase 
business combination. The goodwill resulting from this transaction aggregated 
$9.5 million. 
    

   
   In January 1995, Covance acquired National Packaging Systems, Inc. ("NPS", 
now known as Covance Pharmaceutical Packaging Services) for an initial cash 
payment of $14.0 million in a transaction accounted for as a purchase 
business combination. The goodwill resulting from this transaction aggregated 
$9.1 million. In accordance with the terms of the acquisition agreement, 
Covance is contingently obligated to pay up to an additional $7.0 million in 
contingent purchase price to former NPS shareholders if NPS achieves certain 
established earnings targets for the period January 1995 through September 
1996. 
    

   
   Results of operations for these entities have been included in the 
accompanying financial statements beginning on the respective dates of 
acquisition. Pro forma information for these entities has not been presented, 
due to their insignificance to Covance taken as a whole. 
    

   Goodwill associated with these and prior acquisitions aggregated $24.0 
million and $15.9 million, net of accumulated amortization of $3.5 million 
and $2.6 million at December 31, 1995 and 1994, respectively. Amortization 
expense aggregated $0.9 million, $0.5 million and $0.3 million for 1995, 1994 
and 1993, respectively. 

                                     F-36 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (Dollars in thousands, unless otherwise indicated) 

5. Taxes on Income 

   
   Covance has been included in the Federal income tax return filed by 
Corning. Covance and its subsidiaries 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 
Federal income tax return liability so computed. 
    

   
   The components of income before taxes and the related provision (benefit) 
for taxes on income were as follows: 
    


<TABLE>
<CAPTION>
                                     1995      1994        1993 
                                  ---------  ---------   --------- 
<S>                                <C>        <C>        <C>
Income before taxes and equity 
  investee losses: 
 Domestic                          $32,771    $30,928    $29,455 
 International                      10,305      4,076      2,253 
                                    -------    -------   -------- 
  Total                            $43,076    $35,004    $31,708 
                                    =======    =======   ======== 
Federal income taxes: 
 Current provision                 $19,118    $12,167    $10,932 
 Deferred benefit                   (6,760)    (1,742)    (1,439) 
International income taxes: 
 Current (benefit) provision          (933)       602       (573) 
 Deferred provision                  3,434      1,440      1,612 
State and other income taxes: 
 Current provision                   3,959      2,868      3,143 
 Deferred benefit                     (373)      (411)      (169) 
                                    -------    -------   -------- 
  Total                            $18,445    $14,924    $13,506 
                                    =======    =======   ======== 
</TABLE>

   
   The differences between the provision for income taxes and income taxes 
computed using the Federal income tax rate were as follows: 
    

<TABLE>
<CAPTION>
                                          1995     1994      1993 
                                         -------  -------   -------- 
<S>                                       <C>      <C>       <C>
Taxes at statutory rate                   35.0 %   35.0 %    35.0 % 
State and local taxes, net of 
  Federal benefit                          5.5      4.6       6.1 
Impact of international operations        (0.3)     1.7       0.8 
Goodwill amortization                      1.1      0.5       0.4 
Other, net                                 1.5      0.8       0.3 
                                         ------    ------    ------- 
 Total                                    42.8 %   42.6 %    42.6 % 
                                         ======    ======    ======= 
</TABLE>

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

<TABLE>
<CAPTION>
                                             1995          1994 
                                          -----------  ------------ 
<S>                                        <C>           <C>
Current deferred taxes: 
 Liabilities not currently deductible      $ 10,356      $  9,823 
 Net operating losses                           888            -- 
 Other                                          538           210 
                                            ---------   ---------- 
                                             11,782        10,033 
 Less: valuation allowance                     (445)           -- 
                                            ---------   ---------- 
 Net                                       $ 11,337      $ 10,033 
                                            =========   ========== 
Noncurrent deferred taxes: 
 Property and equipment                    $(12,263)     $(11,894) 
 Liabilities not currently deductible         5,857         2,289 
                                            ---------   ---------- 
  Total                                    $ (6,406)     $ (9,605) 
                                            =========   ========== 
</TABLE>

                                     F-37 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect 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 consists of Federal 
income taxes payable to Corning of $17.0 million and $8.7 million, 
respectively, state and other income taxes payable (receivable) of $1.6 
million and $(0.4) million, respectively, and international income taxes 
receivable of $2.0 million and $0.4 million, respectively. Covance paid 
income taxes of $16.7 million, $17.0 million and $18.3 million for the years 
1995, 1994 and 1993, respectively. 
    


6. Employee Benefit Plans 

   
   Covance has several defined contribution plans covering substantially all 
of its full-time employees. Contributions to these plans aggregated $4.9 
million, $4.2 million and $3.7 million for 1995, 1994 and 1993, respectively. 
    


7. Restructuring Charge 

   
   In 1995, Covance recorded a provision for restructuring charges totaling 
$4.6 million as a result of management's decision to discontinue certain 
nonstrategic operations. The restructuring charge included severance costs 
related to approximately 90 employees, of which approximately 50 had been 
terminated as of December 31, 1995. The remaining employees were terminated 
and all other substantive activities to complete the restructuring plan were 
completed by April 30, 1996. A summary of the restructuring charge is as 
follows: 
    


<TABLE>
<CAPTION>
                                                    Charges      Reserve 
                                                    through     balance at 
                                        Original   December      December 
                                        Reserve    31, 1995      31, 1995 
                                      ----------  ----------  ------------- 
<S>                                      <C>        <C>           <C>
Employee termination costs               $1,480     $  539        $  941 
Write-off of fixed assets                 1,737        994           743 
Costs of exiting leased facilities        1,399        118         1,281 
                                        --------    --------    ----------- 
 Total                                   $4,616     $1,651        $2,965 
                                        ========    ========    =========== 
</TABLE>

8. Commitments and Contingent Liabilities 

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

<TABLE>
<CAPTION>
<S>                         <C>
Year ended December 31, 
1996                        $15,332 
1997                        $18,841 
1998                        $16,578 
1999                        $15,493 
2000                        $14,394 
2001 and beyond             $31,253 
</TABLE>

   Operating lease rental expense aggregated $14.1 million, $11.0 million and 
$9.1 million for 1995, 1994 and 1993, respectively. 

   
   In June 1995, Covance Biotechnology ("lessee") entered into a lease 
arrangement whereby a custom-designed, fully equipped facility would be 
constructed for the lessee at a cost of approximately $55 million to perform 
specialized research and manufacturing activities for biotechnology and 
pharmaceutical companies. The lessor in this arrangement is a subsidiary of 
one of the largest banks in the United States. The lease arrangement contains 
purchase and cancellation options for the lessee at any time during the ten 
year period covered by the lease arrangement. Although the lease arrangement 
is cancelable by the lessee at any time throughout the ten year period, an 
initial lease term of five years, representing management's estimate at the 
lease inception date of the period in 
    


                                     F-38 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (Dollars in thousands, unless otherwise indicated) 

which occupancy of the facility is reasonably assured, has been selected for 
financial reporting purposes. The initial term of the lease will commence on 
the date of completion of construction of the facility which is currently 
anticipated by the end of 1996. The annual minimum lease payments are 
currently estimated at $5.5 million. The lease arrangement will be classified 
as an operating lease. 

   A purchase price option has been established at specific dates over the 
ten year period covered by the lease arrangement. Using current estimates, 
the purchase price would approximate $54 million at the end of the first year 
and decreases on an amortizing basis to approximately $37 million at the end 
of the tenth year. 

   
   The cancellation option provisions of the lease arrangement stipulate a 
residual value guarantee by Covance at specific dates over the ten year 
period. Sale of the facility is stipulated in the lease arrangement at such 
time that the lessee exercises the cancellation option provisions. The 
lessee's residual value guarantee ("Deficiency Payment") is unconditionally 
payable to the lessor in the event that the lessee terminates the lease 
arrangement and the sale of the facility results in receipt of sales proceeds 
by the lessor in an amount less than the lessor's unamortized investment in 
the lease arrangement. The lessee's maximum Deficiency Payment would 
approximate $35 million at the end of the first year and decreases to 
approximately $25 million at the end of the tenth year, assuming that the 
sales proceeds received by the lessor were zero. 
    


9. Geographic Information 

<TABLE>
<CAPTION>
                              United 
                              States        Europe 
                           -------------   ---------- 
<S>                         <C>            <C>
Net revenue: 
 1995                       $286,474       $122,700 
 1994                       $242,131       $ 77,370 
 1993                       $227,110       $ 62,587 
Income from operations: 
 1995                       $ 34,799 (1)   $ 12,762 
 1994                       $ 32,710       $  5,889 
 1993                       $ 32,673       $  4,308 
Identifiable assets: 
 1995                       $229,720       $ 92,790 
 1994                       $202,986       $ 69,006 
 1993                       $183,652       $ 46,041 
</TABLE>

   (1) Excluding the impact of the 1995 restructuring provision totaling 
       $4,616, United States income from operations was $39,415. 

10. Related Party Transactions 

   
   Covance participates in Corning's centralized treasury and cash management 
processes. For domestic operations, cash received from operations is 
generally transferred to Corning on a daily basis. For international 
operations, excess cash is periodically transferred to Corning. Cash 
disbursements for operations, acquisitions and other investments are funded 
as needed from Corning. Substantially all of Covance's borrowings to date 
have been with Corning. The blended rate on those borrowings for 1995, 1994 
and 1993 was approximately 6.0%. 
    

   
   Certain members of Covance management participate in various stock 
compensation programs sponsored by Corning. The expenses associated with 
these programs have been reflected in the accompanying financial statements. 
    

   
   Corning and affiliates provide a number of administrative functions to 
Covance which resulted in charges of $5.3 million, $5.7 million and $5.3 
million being recorded in the Covance results of operations for 1995, 1994 
and 1993, respectively. Management believes the method used to allocate such 
costs is reasonable under the circumstances. The charges for these functions 
are included primarily in selling, general and administrative expenses 
    


                                     F-39 
<PAGE> 

                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
              NOTES TO COMBINED FINANCIAL STATEMENTS (Continued) 
              (Dollars in thousands, unless otherwise indicated) 

   
and do not necessarily reflect the amount of expenses that would have been 
incurred by Covance on a stand-alone basis. Covance management believes that 
these costs would have been approximately $2.0 million higher on an annual 
basis had Covance operated as a stand alone company during this period. In 
certain cases, related party expenses allocated to Covance have not required 
reimbursement in cash and, accordingly, have been treated as a capital 
contribution. 
    


11. Subsequent Event 

   
   In March 1996, Covance acquired all of the assets and substantially all of 
the liabilities of Health Technology Associates, Inc. ("HTA", now known as 
Covance Health Economics and Outcomes Services) for an initial cash payment 
of approximately $15.0 million in a transaction accounted for as a purchase 
business combination. In accordance with the terms of the asset purchase 
agreement, Covance is contingently obligated to pay up to an additional $17.0 
million in contingent purchase price if HTA achieves certain established 
earnings targets for the three year period ending March 1999. 
    

   
   In conjunction with the Covance Spin-Off Distribution, Covance plans to
record a material nonrecurring charge at the distribution date related to
establishing and funding an employee stock ownership plan, other employee
benefit plan arrangements and costs for advisors and other fees associated with
being established as a separate publicly traded entity. In addition, Covance
plans to incur significant long term bank borrowings to repay Corning for all
intercompany borrowings and income tax liabilities at the distribution date. The
credit facility governing such borrowings prohibits Covance from giving cash
dividends on the Covance stock.
    

   
   Corning, Corning Clinical Laboratories Inc. ("CCL") and Covance will enter 
into tax indemnification agreements that will prohibit CCL and Covance for a 
period of two years after the 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. 
    


12. Quarterly Financial Information (Unaudited) 

   The following is a summary of unaudited quarterly financial information 
for 1995 and 1994: 

<TABLE>
<CAPTION>
                                  First        Second        Third       Fourth 
Year Ended December 31, 1995     Quarter      Quarter       Quarter     Quarter 
- ----------------------------    ---------   -----------   ----------   ---------- 
<S>                              <C>          <C>          <C>          <C>
Net revenues                     $91,974      $104,813     $106,099     $106,288 
Income from operations            12,983         9,665 (1)   13,671       11,242 
Net income                         6,547         4,449 (1)    7,516        5,714 
Year Ended December 31, 1994 
- ---------------------------- 
Net revenues                     $74,223      $ 77,762     $ 82,904     $ 84,612 
Income from operations             8,187        11,077        9,690        9,645 
Net income                         4,023         5,726        4,967        4,929 
</TABLE>

   (1) Excluding the impact of the 1995 restructuring provision totaling 
       $4,616 ($2,770 net of tax), income from operations and net income in 
       the second quarter of 1995 were $14,281 and $7,219, respectively. 

                                     F-40 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                       INTERIM COMBINED BALANCE SHEETS 
             SEPTEMBER 30, 1996 AND DECEMBER 31, 1995 (UNAUDITED) 
    


<TABLE>
<CAPTION>
 (Amounts in thousands)                             1996        1995 
                                                 ----------   ---------- 
<S>                                               <C>         <C>
Assets 
Current Assets: 
 Cash and cash equivalents                        $ 13,551    $  8,068 
 Accounts receivable, net                           95,690      78,968 
 Unbilled services                                  43,110      18,217 
 Inventory                                          14,718      14,004 
 Deferred income taxes                              14,273      11,337 
 Prepaid expenses and other assets                  20,639      15,189 
                                                   --------    --------- 
  Total Current Assets                             201,981     145,783 
 Property and Equipment, net                       143,956     140,708 
 Goodwill, net                                      43,443      24,028 
 Other Assets                                       13,212      11,991 
                                                   --------    --------- 
  Total Assets                                    $402,592    $322,510 
                                                   ========    ========= 
Liabilities and Stockholder's Equity 
Current Liabilities: 
 Trade accounts payable                           $ 23,627    $ 23,761 
 Accrued payroll and benefits                       30,058      20,339 
 Accrued expenses and other liabilities             36,410      24,701 
 Unearned revenue                                   46,025      41,879 
 Income taxes payable                               18,408      16,631 
                                                   --------    --------- 
  Total Current Liabilities                        154,528     127,311 
Due to Corning Incorporated and affiliates         118,165      89,836 
Deferred income taxes                                9,583       6,406 
Other liabilities                                   14,444      16,440 
                                                   --------    --------- 
  Total Liabilities                                296,720     239,993 
                                                   --------    --------- 
Commitments and Contingent Liabilities 
Stockholder's Equity: 
 Contributed capital                                32,368      30,816 
 Retained earnings                                  70,505      48,653 
 Cumulative translation adjustment                   2,999       3,048 
                                                   --------    --------- 
  Total Stockholder's Equity                       105,872      82,517 
                                                   --------    --------- 
   Total Liabilities and Stockholder's Equity     $402,592    $322,510 
                                                   ========    ========= 
</TABLE>

  The accompanying notes are an integral part of these financial statements. 

                                     F-41 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                    INTERIM COMBINED STATEMENTS OF INCOME 
 FOR THE THREE AND NINE MONTHS ENDED SEPTEMBER 30, 1996 AND 1995 (UNAUDITED) 


<TABLE>
<CAPTION>
                                                  Three Months Ended         Nine Months Ended 
                                                -----------------------    --------------------- 
(Amounts in thousands)                             1996          1995        1996         1995 
                                                -----------    --------    --------   ---------- 
<S>                                              <C>           <C>         <C>          <C>
Net revenues                                     $ 127,179     $106,099    $357,406     $302,886 
Cost and expenses 
  Cost of revenue                                  83,204        70,057     232,828      198,820 
Selling, general and administrative 
   expenses                                        20,627        16,882      57,573       46,965 
Restructuring charge                                   --            --          --        4,616 
Depreciation and amortization                       5,846         5,489      18,130       16,166 
                                                 ----------       ------     ------     -------- 
  Total                                           109,677        92,428     308,531      266,567 
                                                 ----------       ------     ------     -------- 
Income from operations                             17,502        13,671      48,875       36,319 
                                                 ----------       ------     ------     -------- 
Other expense 
  Interest expense, net                             1,871         1,167       4,536        3,918 
Foreign exchange loss                                (321)         (936)       (212)        (609) 
                                                 ----------       ------     ------     -------- 
                                                    1,550           231       4,324        3,309 
                                                 ----------       ------     ------     -------- 
Income before taxes and equity investee 
  losses                                           15,952        13,440      44,551       33,010 
Taxes on income                                     6,931         5,771      19,411       14,147 
Equity investee loss (gain)                           (53)          153         (68)         351 
                                               ------------    --------    --------   ---------- 
Net income                                       $  9,074      $   7,516   $ 25,208     $ 18,512 
                                               ============    ========    ========   ========== 
</TABLE>
    


  The accompanying notes are an integral part of these financial statements. 

                                     F-42 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                  INTERIM COMBINED STATEMENTS OF CASH FLOWS 
      FOR THE NINE MONTHS ENDED SEPTEMBER 30, 1996 AND 1995 (UNAUDITED) 


<TABLE>
<CAPTION>
(Amounts in thousands)                                 1996         1995 
                                                    ----------   ---------- 
<S>                                                  <C>          <C>
Cash flows from operating activities 
Net income                                           $ 25,208     $ 18,512 
Adjustments to reconcile net income to net 
  cash provided by operating activities: 
  Depreciation and amortization                        18,130       16,166 
Restructuring reserve, net of cash paid                    --        3,749 
Deferred income tax provision                             241       (3,867) 
Related party charges                                   1,552        2,406 
Other                                                     162          901 
Changes in operating assets and liabilities: 
  Accounts receivable                                 (14,987)      (8,741) 
Unbilled services                                     (22,365)     (10,738) 
Inventory                                                (714)      (2,069) 
Accounts payable                                         (177)      (4,208) 
Accrued liabilities                                    12,084       15,923 
Unearned revenue                                        2,932        2,419 
Income taxes payable                                    1,777        5,948 
Other assets and liabilities, net                      (8,922)      (3,987) 
                                                      --------    --------- 
Net cash provided by operating activities              14,921       32,414 
                                                      --------    --------- 
Cash flows from investing activities 
  Capital expenditures                                (19,977)     (25,209) 
Acquisition of businesses                             (14,890)     (14,000) 
Other, net                                                458          398 
                                                      --------    --------- 
Net cash used in investing activities                 (34,409)     (38,811) 
                                                      --------    --------- 
Cash flows from financing activities 
  Due to Corning Incorporated and affiliates           13,439        8,111 
Acquisition loan from Corning Incorporated             14,890       14,000 
Capital contributions                                      --        1,000 
Dividends paid                                         (3,358)     (10,257) 
                                                      --------    --------- 
Net cash provided by financing activities              24,971       12,854 
                                                    ----------   ---------- 
Net change in cash and cash equivalents                 5,483        6,457 
Cash and cash equivalents, beginning of period          8,068        6,176 
                                                    ----------   ---------- 
Cash and cash equivalents, end of period             $ 13,551     $ 12,633 
                                                    ==========   ========== 
</TABLE>
    


  The accompanying notes are an integral part of these financial statements. 

                                     F-43 
<PAGE> 

   
                        COVANCE INC. AND SUBSIDIARIES 
         (an indirect wholly-owned business of Corning Incorporated) 
                    NOTES TO COMBINED FINANCIAL STATEMENTS 
                                 (Unaudited) 
    


1. Basis of Presentation 

   
   The accompanying unaudited 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 interim periods presented. All 
such adjustments are of a normal recurring nature. The combined financial 
statements have been compiled without audit and are subject to such year-end 
adjustments as may be considered appropriate and should be read in 
conjunction with the historical combined financial statements of Covance for 
the years ended December 31, 1995, 1994 and 1993 included elsewhere herein. 
    


2. Use of Estimates 

   The preparation of these unaudited combined 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, 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 these 
estimates. 

3. Taxes on Income 

   Taxes on income reflect the estimated annual effective tax rates. 

4. Acquisitions 

   
   In March 1996, Covance acquired all of the assets and substantially all of 
the liabilities of Health Technology Associates, Inc. ("HTA", now known as 
Covance Health Economics and Outcomes Services) for an initial cash payment 
of approximately $15.0 million in a transaction accounted for as a purchase 
business combination. In accordance with the terms of the asset purchase 
agreement, Covance is contingently obligated to pay up to an additional $17.0 
million in contingent purchase price if HTA achieves certain established 
earnings targets during the three year period ending March 1999. 
    

   
5. Subsequent Event 
    

   
   In October 1996, Covance acquired the stock of CRS Pacamed AG (now known 
as Covance Pharmaceutical Packaging Services) for a cash payment of 
approximately $14.4 million in a transaction to be accounted for as a 
purchase business combination. 
    

                                      F-44


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