HARTFORD STEAM BOILER INSPECTION & INSURANCE CO
8-K, 1996-02-14
FIRE, MARINE & CASUALTY INSURANCE
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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC  20549

FORM 8-K

CURRENT REPORT


Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) - January 30, 1996

THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY
(Exact name of registrant as specified in its charter)

Connecticut                         0-13300             06-0384680
(State or other                    (Commission     (IRS Employer
jurisdiction of incorporation)    File Number)   Identification No.)

One State Street, Hartford, Connecticut        06102
(Address of principal executive offices)       (Zip Code)

Registrant's telephone number, including area code - (203-722-1866)




Item 5.  Other Events

On January 30, 1996, the Registrant, together with The Dow Chemical 
Company,  completed the formation of a new company, Radian 
International LLC, to provide environmental, information technology, 
and strategic chemical management services to industries and 
government worldwide.  Radian International LLC is headquartered in 
Austin, Texas with field offices at other sites in the United States
and abroad.

In connection with the formation of Radian International LLC, the 
Registrant contributed substantially all of the assets of its wholly-
owned subsidiary, Radian Corporation, to the new company.  Similarly, 
The Dow Chemical Company contributed the assets of its wholly-owned 
subsidiary, Dow Environmental Inc. as well as access to certain of its 
technologies which are in support of the businesses expected to be 
conducted by the new company.

Radian International LLC currently is 40 percent owned by Radian 
Corporation, which continues to be a wholly-owned subsidiary of the 
Registrant, and 60 percent  owned by Dow Environmental Inc.  The 
income of Radian International LLC will be subject to a preference 
return to the Registrant for the first two years.  

As is customary in joint ventures, the agreements executed in 
connection with the formation of Radian International LLC specify 
certain circumstances under which the business can be sold, venture 
assets and liabilities can be distributed or partners' interests can 
be sold subject to certain rights of first refusal.

In 1996, the Registrant's interest in Radian International LLC will be 
accounted for on the consolidated financial statements under the 
equity method of accounting.  Had the transaction occurred at the 
beginning of 1995, under the equity method of accounting, total 
revenues and total expenses would have been $470.7 and  $399.7, 
respectively, as compared to actual 1995 revenues of $672.2 and 
expenses of $585.9; and consolidated assets and liabilities at 
December 31, 1995 would have been $954.1 and $613.0, respectively, as 
compared to actual amounts of $971.5 and $630.4.

The foregoing description is qualified in its entirety by reference
to the Contribution Agreement and the Limited Liability Company
Agreement of Radian International LLC, copies of which are filed
as Exhibits hereto. 


Item 7. Exhibits.

The following exhibits are filed with this Form 8-K:

99.1   Contribution Agreement dated as of January 30, 1996.*

99.2   Limited Liability Company Agreement of Radian International
       LLC dated as of January 1, 1996.*


*  Certain exhibits, schedules and/or annexes have been omitted.  A copy
   of any omitted exhibit, schedule or annex will be furnished
   supplementally to the Commission upon request.










Pursuant to the requirements of the Securities Exchange Act of 
1934, the Registrant has duly caused this report to be signed on 
its behalf by the undersigned, thereunto duly authorized.


                          					THE HARTFORD STEAM BOILER
					                          INSPECTION AND INSURANCE COMPANY



Dated:  February 14, 1996       /s/ Robert C. Walker            
                                Robert C. Walker
                                Senior Vice President and General
                                   Counsel




                          EXHIBIT INDEX

Exhibit No.
- ----------

99.1    Contribution Agreement dated as of January 30, 1996.*

99.2    Limited Liability Company Agreement of Radian International
        LLC dated as of January 1, 1996.*


*  Certain exhibits, schedules and/or annexes have been omitted.  A copy
   of any omitted exhibit, schedule or annex will be furnished 
   supplementally to the Commission upon request.     



                                                     EXHIBIT 99.1


                     CONTRIBUTION AGREEMENT


                           dated as of

                        January 30, 1996


                              among


                    THE DOW CHEMICAL COMPANY,

   THE HARTFORD STEAM BOILER INSPECTION AND INSURANCE COMPANY,

                     DOW ENVIRONMENTAL INC.

                               and

                      RADIAN CORPORATION


                       TABLE OF CONTENTS

SECTION                                                      Page

                            ARTICLE I

                           DEFINITIONS

     1.01.  Definitions. . . . . . . . . . . . . . . . . . . .  1
     1.02.  Accounting Terms and Determinations. . . . . . . .  9

                           ARTICLE II

                   ORGANIZATION; CONTRIBUTION

     2.01.  Organization of Newco. . . . . . . . . . . . . . . 10
     2.02.  Contribution . . . . . . . . . . . . . . . . . . . 10
     2.03.  Excluded Assets. . . . . . . . . . . . . . . . . . 12
     2.04.  Assumption of Liabilities. . . . . . . . . . . . . 13
     2.05.  Excluded Liabilities . . . . . . . . . . . . . . . 14
     2.06.  INTENTIONALLY OMITTED. . . . . . . . . . . . . . . 15
     2.07.  Assignment of Certain Contracts and Other   
            Assets . . . . . . . . . . . . . . . . . . . . . . 15
     2.08.  Closing. . . . . . . . . . . . . . . . . . . . . . 17
     2.09.  Closing Balance Sheet. . . . . . . . . . . . . . . 18
     
                           ARTICLE III

        REPRESENTATIONS AND WARRANTIES OF DEI AND RADIAN

     3.01.  Existence and Power. . . . . . . . . . . . . . . . 19
     3.02.  Authorization. . . . . . . . . . . . . . . . . . . 19
     3.03.  Governmental Authorization . . . . . . . . . . . . 20
     3.04.  Non-Contravention. . . . . . . . . . . . . . . . . 20
     3.05.  Restricted Assets. . . . . . . . . . . . . . . . . 20
     3.06.  Third Quarter Financial Statements . . . . . . . . 21
     3.07.  Absence of Certain Changes . . . . . . . . . . . . 21
     3.08.  Properties . . . . . . . . . . . . . . . . . . . . 23
     3.09.  Sufficiency of Assets. . . . . . . . . . . . . . . 24
     3.10.  No Undisclosed Liabilities . . . . . . . . . . . . 25
     3.11.  Litigation . . . . . . . . . . . . . . . . . . . . 25
     3.12.  Material Contracts . . . . . . . . . . . . . . . . 25
     3.13.  Licenses and Permits . . . . . . . . . . . . . . . 27
     3.14.  Insurance Coverage . . . . . . . . . . . . . . . . 27
     3.15.  Compliance with Laws . . . . . . . . . . . . . . . 28
     3.16.  Inventories. . . . . . . . . . . . . . . . . . . . 28
     3.17.  Receivables; Payables. . . . . . . . . . . . . . . 28
     3.18.  Intellectual Property. . . . . . . . . . . . . . . 29
     3.19.  Finders' Fees. . . . . . . . . . . . . . . . . . . 29
     3.20.  Environmental Matters. . . . . . . . . . . . . . . 29
     3.21.  Warranties . . . . . . . . . . . . . . . . . . . . 31
     3.22.  Customers and Suppliers. . . . . . . . . . . . . . 31
     3.23.  Books and Records. . . . . . . . . . . . . . . . . 31
     3.24.  Taxes. . . . . . . . . . . . . . . . . . . . . . . 31
     3.25.  No Other Agreement . . . . . . . . . . . . . . . . 32
     3.26.  Derivatives. . . . . . . . . . . . . . . . . . . . 32
     3.27.  Material Equity Investment Entities. . . . . . . . 32
     3.28.  Employment Plans and Benefit Arrangements. . . . . 34

                           ARTICLE IV

         REPRESENTATIONS AND WARRANTIES OF TDCC AND HSB

     4.01.  Existence. . . . . . . . . . . . . . . . . . . . . 35
     4.02.  Authorization. . . . . . . . . . . . . . . . . . . 35
     4.03.  Governmental Authorization . . . . . . . . . . . . 36
     4.04.  Non-Contravention. . . . . . . . . . . . . . . . . 36
     4.05.  Required Approval. . . . . . . . . . . . . . . . . 37
     4.06.  Finders' Fees. . . . . . . . . . . . . . . . . . . 37

                            ARTICLE V

                            COVENANTS

     5.01.  Conduct of the Business. . . . . . . . . . . . . . 37
     5.02.  Access to Information. . . . . . . . . . . . . . . 39
     5.03.  Notices of Certain Events. . . . . . . . . . . . . 40
     5.04.  Reasonable Efforts; Further Assurances . . . . . . 40
     5.05.  Certain Filings. . . . . . . . . . . . . . . . . . 40
     5.06.  Public Announcements . . . . . . . . . . . . . . . 41
     5.07.  Stockholder Approval . . . . . . . . . . . . . . . 41
     5.08.  WARN . . . . . . . . . . . . . . . . . . . . . . . 41
     5.09.  INTENTIONALLY OMITTED. . . . . . . . . . . . . . . 41
     5.10.  Impairment of Assets . . . . . . . . . . . . . . . 41
     5.11.  Covenant of Parent . . . . . . . . . . . . . . . . 42
     5.12.  Covenants Not to Compete . . . . . . . . . . . .   42
     5.13.  Liens on Interests in Newco. . . . . . . . . . . . 43
     5.14.  Covenants Not to File Involuntary Bankruptcy . . . 43
     5.15.  INTENTIONALLY OMITTED. . . . . . . . . . . . . . . 43
     5.16.  INTENTIONALLY OMITTED. . . . . . . . . . . . . . . 43
     5.17.  Transfers of Capital Stock of Contributing 
            Subsidiary . . . . . . . . . . . . . . . . . . . . 43
     5.18.  Technology Access. . . . . . . . . . . . . . . . . 45
     5.19.  Certain Radian Property. . . . . . . . . . . . . . 46


                           ARTICLE VI

                 EMPLOYEES AND EMPLOYEE BENEFITS

     6.01.  Leased Employees . . . . . . . . . . . . . . . . . 46
     6.02.  Employment by Newco. . . . . . . . . . . . . . . . 47
     6.03.  Newco Plans. . . . . . . . . . . . . . . . . . . . 47
     6.04.  Relocation . . . . . . . . . . . . . . . . . . . . 49

                           ARTICLE VII

                      CONDITIONS TO CLOSING

     7.01.  Conditions to the Closing. . . . . . . . . . . . . 49

                          ARTICLE VIII

                    SURVIVAL; INDEMNIFICATION

     8.01.  Survival . . . . . . . . . . . . . . . . . . . . . 50
     8.02.  Indemnification. . . . . . . . . . . . . . . . . . 50
     8.03.  Notice of Third Party Claims; Assumption of
            Defense. . . . . . . . . . . . . . . . . . . . . . 53
     8.04.  Settlements or Compromises . . . . . . . . . . . . 54
     8.05.  Failure of Indemnifying Party to Act . . . . . . . 55

                           ARTICLE IX

                           TERMINATION

     9.01.  Grounds for Termination. . . . . . . . . . . . . . 55
     9.02.  Effect of Termination. . . . . . . . . . . . . . . 56

                            ARTICLE X

                          MISCELLANEOUS

     10.01.  Notices . . . . . . . . . . . . . . . . . . . . . 56
     10.02.  Amendments; No Waivers. . . . . . . . . . . . . . 57
     10.03.  Expenses. . . . . . . . . . . . . . . . . . . . . 57
     10.04.  Successors and Assigns. . . . . . . . . . . . . . 58
     10.05.  Governing Law . . . . . . . . . . . . . . . . . . 58
     10.06.  Counterparts. . . . . . . . . . . . . . . . . . . 58
     10.07.  Entire Agreement. . . . . . . . . . . . . . . . . 58
     10.08.  Captions. . . . . . . . . . . . . . . . . . . . . 58
     10.09.  Specific Performance. . . . . . . . . . . . . . . 58
     10.10.  Severability. . . . . . . . . . . . . . . . . . . 58
     10.11.  No Third Party Beneficiaries. . . . . . . . . . . 59

Annex I           Third Quarter Financial Statements of DEI
Annex II          Third Quarter Financial Statements of Radian

Exhibit A         Technology Access

Schedule 1.01           Debt
Schedule 2.02(a)        Liens on Assets
Schedule 2.02(a)(iv)    Other Contracts
Schedule 2.02(a)(xi)    Contributed Amounts
Schedule 2.02(b)(x)     Liens on Contributed Assets
Schedule 2.02(b)        Certain Contributed Assets
Schedule 2.03(x)        Excluded Assets of Radian
Schedule 2.03(xi)       Excluded Assets of DEI
Schedule 2.04(c)        Certain Assumed Liabilities
Schedule 2.07(f)        Special Foreign Assets
Schedule 3.03           Government Authorization
Schedule 3.05           Restricted Assets
Schedule 3.07           Absence of Certain Changes
Schedule 3.08(a)        Real Property
Schedule 3.08(b)        Personal Property
Schedule 3.08(d)        Liens
Schedule 3.08(e)        Violation of Law
Schedule 3.10           No Undisclosed Liabilities
Schedule 3.11           Litigation
Schedule 3.12(a)        Contracts
Schedule 3.12(b)        Defaults
Schedule 3.13           Licenses and Permits
Schedule 3.16           Inventories
Schedule 3.17           Aging of Receivables
Schedule 3.18           Intellectual Property
Schedule 3.20           Environmental Matters
Schedule 3.21           Warranties
Schedule 3.22           Customers and Suppliers
Schedule 3.24           Taxes
Schedule 3.25           No Other Agreements
Schedule 3.26           Derivative Financial Instruments
Schedule 3.27           Material Equity Investment Entities
Schedule 3.28           Employment Plans and Benefit Arrangements
Schedule 4.03           Government Authorization
Schedule 8.02(g)        Income Tax Caps
Schedule 10.03          Expenses


                     CONTRIBUTION AGREEMENT


          This CONTRIBUTION AGREEMENT, dated as of January 30,
1996, is among The Dow Chemical Company, a Delaware corporation
("TDCC"), Dow Environmental Inc., a Delaware corporation and a
wholly owned subsidiary of TDCC ("DEI"), The Hartford Steam
Boiler Inspection and Insurance Company, a Connecticut
corporation ("HSB") and Radian Corporation, a Texas corporation
and a wholly owned subsidiary of HSB ("Radian").  TDCC and HSB
are sometimes individually referred to as a "Parent."  DEI and
Radian are sometimes individually referred to in this Agreement
as a "Contributing Subsidiary" and are sometimes collectively
referred to in this Agreement as "Contributing Subsidiaries."  

                            RECITALS

          A.     TDCC and HSB have caused the formation of Radian
International LLC, a Delaware limited liability company
("Newco"), pursuant to a Limited Liability Company Agreement,
dated as of January 1,  1996, between DEI and Radian (the "LLC
Agreement").

          B.     Each of TDCC and HSB, on behalf of itself and
its Affiliates, wishes to develop through Newco the Newco
Services Business (as defined below).
     
          C.     Each of TDCC, HSB, DEI and Radian wishes to
contribute or cause the contribution of, as the case may be, the
Contributed Assets (as defined below) to Newco and to cause Newco
to perform, assume and discharge the Assumed Liabilities (as
defined below).

          NOW, THEREFORE, the parties agree as follows:


                            ARTICLE I

                           DEFINITIONS

          1.01.  Definitions.  (a)  The following terms, as used
in this Agreement, have the following meanings:

          "Affiliate" means, with respect to any Person, any
Person directly or indirectly controlling, controlled by, or
under common control with such other Person; provided that Newco
shall not be an Affiliate of any party to this Agreement for
purposes of this Agreement.  For the purposes of this definition,
"control," when used with respect to any Person, means the
possession, directly or indirectly, of the power to direct or
cause the direction of the operation or management and policies
of such Person, whether through the ownership of voting
securities, by contract or otherwise; and the terms "controlling"
and "controlled" have meanings correlative to the foregoing.

          "Agreement" means, on any date, this Contribution
Agreement as originally in effect on the date of this Agreement
and as thereafter from time to time amended, supplemented,
amended and restated, or otherwise modified and in effect on such
date.

          "Bankruptcy" has the meaning set forth in the LLC
Agreement. 

          "Benefit Arrangement" means any retirement or deferred
compensation plan, stock plan, unemployment compensation plan,
vacation pay, severance pay, bonus or benefit arrangement,
insurance or hospitalization program or any other fringe benefit
arrangement for any current or former employee, director,
consultant or agent (whether pursuant to contract, arrangement,
custom or informal understanding) which does not constitute an
Employee Plan, or any employment agreement (i) that is
maintained, administered or contributed to by DEI or Radian or
any of their respective ERISA Affiliates, or (ii) to which DEI or
Radian or any of their respective ERISA Affiliates is a party or
has any liability or contingent liability.

          "Books and Records" means, with respect to any party,
copies of all books, records, files and papers, whether in hard
copy or computer format, related to the business of such party
(excluding minute books for its board of directors, committees or
shareholder meetings, incorporation documents, and stock transfer
records and tax or similar or related corporate records)
including without limitation engineering information, sales and
promotional literature, manuals and data, sales and purchase
correspondence, lists of present and former suppliers, lists of
present and former customers, personnel and employment records
(excluding at the Closing personnel records relating to
individual performance or evaluation records, medical histories
or other such sensitive information, which shall be contributed
at such time as the respective individual becomes an employee of
Newco), and any information relating to any Tax imposed on the
assets of such party.

          "CERCLA" means the Comprehensive Environmental
Response, Compensation and Liability Act of 1980, as amended.

          "Closing Balance Sheet" means, with respect to each
Contributing Subsidiary, an audited balance sheet of its
Contributed Business as of 11:59 p.m. on December 31, 1995,
together with the notes thereto, consistent with the accounting
principles used in the preparation of the Third Quarter Balance
Sheet, except as may be required by GAAP.

          "Code" means the Internal Revenue Code of 1986, as
amended.

          "Company Interest" has the meaning set forth in the LLC
Agreement. 

          "Confidentiality Agreement" means that certain letter
agreement, dated August 9, 1995, between TDCC and HSB.

          "Contributed Business" means, with respect to each
Contributing Subsidiary, all of its assets and liabilities that
are being contributed to or assumed by Newco, including without
limitation the assets and liabilities that (i) are Restricted
Assets or (ii) are listed on Schedules 2.02(b) and 2.04(c) which
will be contributed to or assumed by DEI from TDCC or its
Affiliates other than DEI or will be contributed to or assumed by
Radian from HSB or its Affiliates other than Radian pursuant to
this Agreement.  For the avoidance of doubt, the assets and
liabilities of TDCC and Affiliates of TDCC other than DEI, and
the assets and liabilities of HSB and Affiliates of HSB other
than Radian, except for the assets and liabilities that are
listed on Schedules 2.02(b) and 2.04(c), are not included in the
definition of Contributed Business.

          "Debt" means, with respect to each Contributing
Subsidiary and its Subsidiaries, taken as a whole, (i) indebted-
ness of such party for borrowed money, (ii) indebtedness of such
party for the deferred purchase price of services or property,
(iii) obligations of such party under leases which have been, or,
in accordance with GAAP, should be, recorded as capitalized
leases, (iv) indebtedness of such party consisting of unpaid
reimbursement obligations in respect of all outstanding drawings
under letters of credit issued for the account of such party, (v)
debt of others guaranteed by such party and (vi) indebtedness of
such party consisting of unpaid reimbursement obligations in
respect of amounts incurred or expended by an Affiliate on behalf
of a Contributing Subsidiary or any of its Subsidiaries for
services or property provided to such party or in satisfaction of
any obligation of such party; provided, however, that aggregate
indebtedness pursuant to this clause (vi) shall not exceed the
amounts set forth on Schedule 1.01; provided, further, however,
that amounts payable under existing written intercompany service
agreements shall not be covered under clause (vi) above.  Debt
shall not include amounts excluded from the Assumed Liabilities
pursuant to Section 2.05(v) of this Agreement related to foreign,
U.S. Federal and state income taxes.

          "Employee Plan" means any "employee benefit plan", as
defined in Section 3(3) of ERISA, that (i) is subject to any
provision of ERISA, and (ii) is maintained, administered or
contributed to by DEI or Radian respectively, or any of their
respective ERISA Affiliates or to which DEI or Radian or any of
their respective ERISA Affiliates is a party or has any liability
or contingent liability.

          "Employee Seconding Agreements" means the agreements,
dated as of the Closing Date (i) between DEI and Newco pursuant
to which DEI will lease to Newco the services of the DEI Leased
Employees, (ii) between Radian and Newco pursuant to which Radian
will lease to Newco the services of the Radian Leased Employees
and (iii) between TDCC and Newco pursuant to which TDCC will
lease to Newco the services of the TDCC Leased Employees, each
for the amount described in such agreements.

          "Environmental Investigation or Audit" means, without
limitation, any audits, studies, reports, analyses, representa-
tive samples and monitoring data relating to a Regulated Environ-
mental Activity, conducted internally (for purposes other than
day-to-day routine monitoring and data analysis) or by outside
consultants or engineers, with respect to any properties or
assets of a Contributing Subsidiary, but shall not include
publicly available studies or reports submitted to regulatory
agencies.

          "Environmental Laws" means any and all federal, state,
local and foreign statutes, laws, judicial decisions, regula-
tions, ordinances, rules, judgments, orders, decrees, codes,
plans, injunctions, permits, concessions, grants, franchises,
licenses, agreements and governmental restrictions, whether now
or hereafter in effect, relating to human health, to the
environment or to emissions, discharges or releases of
pollutants, contaminants, Hazardous Substances or wastes into the
environment, including without limitation ambient air, surface
water, ground water or land, or otherwise relating to the
manufacture, processing, distribution, use, treatment, storage,
disposal, transport or handling of pollutants, contaminants,
Hazardous Substances or wastes or the clean-up or other
remediation thereof.

          "Environmental Liabilities" means all liabilities
(including without limitation liabilities relating to the offsite
disposal of materials generated in the operation of facilities
constituting Contributed Assets), whether such liabilities are
vested or unvested, contingent or fixed, actual or potential, or
known or unknown, which (i) arise under or relate to matters
covered by Environmental Laws (including without limitation any
matters disclosed or required to be disclosed on Schedule 3.20)
and (ii) relate to actions occurring or conditions existing on or
prior to the Closing Date.

          "Environmental Permits" means, with respect to each
Contributing Subsidiary, all permits, licenses, authorizations,
certificates and approvals of governmental authorities relating
to, or required by, Environmental Laws and necessary for the
operation of the Contributed Business of such party in the manner
currently operated.

          "ERISA" means the Employee Retirement Income Security
Act of 1974, as amended, and any successor statute thereto, and
the rules and regulations promulgated thereunder.

          "ERISA Affiliate" of any entity means any other entity
which, together with such entity, would be treated as a single
employer under Section 414 of the Code.

          "Excluded Businesses" means (i) any businesses or
activities conducted by TDCC or any of its Affiliates other than
the businesses or activities conducted as of the date of this
Agreement by DEI and its Subsidiaries or conducted with the
assets listed on Part I of Schedule 2.02(b) and (ii) any
businesses or activities conducted by HSB or any of its
Affiliates other than the businesses or activities conducted as
of the date of this Agreement by Radian and its Subsidiaries or
conducted with the assets listed on Part II of Schedule 2.02(b).

          "GAAP" means the generally accepted accounting
principles set forth in the opinions and pronouncements of the
Accounting Principles Board of the American Institute of
Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other
statements by such other entity as may be approved by a
significant segment of the accounting profession in the United
States, in each case applied on a basis consistent with the
manner in which the financial statements for the respective
Contributed Subsidiary ended September 30, 1995 were prepared.

          "Hazardous Substances" means any toxic, radioactive,
caustic or otherwise hazardous substance, including petroleum,
its derivatives, by-products and other hydrocarbons, or any
substance having any constituent elements displaying any of the
foregoing characteristics, including without limitation any
substance regulated under Environmental Laws.

          "Intellectual Property Right" means, with respect to
each Contributing Subsidiary, any trademark, service mark,
service name, registration thereof or application for
registration therefor, trade name, invention, patent, patent
application, trade secret, know-how, copyright, copyright
registration, application for copyright registration, technology,
formulae, research and development data, computer software
programs, or any other similar type of proprietary intellectual
property right, in each case which is owned or licensed by such
Contributing Subsidiary or any of its respective Subsidiaries.

          "Leased Employee" means any employee who provides
services to Newco pursuant to the Employee Seconding Agreements,
including "DEI Leased Employees" (those employees of DEI who
perform services for Newco pursuant to an Employee Seconding
Agreement), "Radian Leased Employees" (those employees of Radian
who perform services for Newco pursuant to an Employee Seconding
Agreement) and "TDCC Leased Employees" (those employees of TDCC
who perform services for Newco pursuant to an Employee Seconding
Agreement).

          "Lien" means, with respect to any asset, any mortgage,
lien, pledge, charge, security interest, easement, right of way,
or encumbrance of any kind in respect of such asset.

          "Loss" means, collectively, any and all damage, loss,
cost, liability and expense, excluding interest and tax benefits,
but net of insurance proceeds received from third party insurers
and including without limitation reasonable expenses of
investigation and reasonable attorneys' fees and expenses in
connection with any claim, action, suit, proceeding or
governmental investigation.

          "Material Adverse Change" means, with respect to any
Contributing Subsidiary, a material adverse change in the
business, assets, condition (financial or otherwise), or results
of operations of its Contributed Business taken as a whole.

          "Net Debt" means, with respect to Radian's Contributed
Business, (i) Debt as of the Closing Date to HSB less (ii) the
sum of the cash, cash equivalents, and investments which have
terms of less than 120 days and are publicly traded equity
interests.

          "Newco Protected Business" means solely (i) the
businesses conducted by DEI and Radian, and their respective
Subsidiaries, as of the date of this Agreement and (ii) the
businesses conducted as of the date of this Agreement with the
assets listed on Schedule 2.02(b).

          "Newco Services Business" means (i) the Newco Protected
Business and, to the extent not covered by the Newco Protected
Business, (ii) the following businesses: (a) remediation,
including without limitation soil remediation, groundwater
remediation, thermal treatment, bioremediation and containment,
(b) consulting and engineering, including without limitation
hazardous waste practice, (c) strategic chemical management,
including without limitation environmental management, process
optimization, pollution prevention, environmental health and
safety programs, life cycle analysis, materials management and
outsourcing, and (d) systems, including without limitation water
systems, air systems, process systems and operations.

          "Permitted Lien" means, with respect to the Contributed
Assets, any or all of the following:  (i) Liens for property
taxes and assessments not yet delinquent or being contested in
good faith by appropriate proceedings and against which adequate
reserves or accruals have been established in such party's
Closing Balance Sheet, (ii) the rights of lessors and lessees
under leases executed in the ordinary course of business, (iii)
the rights of licensors and licensees under licenses executed in
the ordinary course of business, (iv) Liens, and rights to Liens,
of mechanics, warehousemen, carriers, repairmen and others
arising by operation of law and incurred in the ordinary course
of business, securing obligations not yet delinquent or being
contested in good faith by appropriate proceedings and against
which adequate reserves or accruals have been established in such
party's Closing Balance Sheet, (v) other Liens (other than Liens
securing Debt) which do not, individually or in the aggregate,
materially detract from the value of, or materially interfere
with the current or currently intended use of, the Contributed
Assets of such party subject thereto, or materially impair the
conduct of the business currently conducted, or currently
intended to be conducted, with such Contributed Assets, and (vi)
Liens disclosed on Schedule 3.08(d).

          "Person" means an individual, a corporation, a
partnership, a limited liability company, an association, a trust
or other entity or organization, including a government or
political subdivision or an agency or instrumentality thereof.

          "Pre-Contribution Tax Period" means any Tax period
ending on or before 12:01 a.m. on January 1, 1996 or, in the case
of any Tax period which includes, but does not end on, January 1,
1996, the portion of such period up to but not including January
1, 1996.

          "Regulated Environmental Activity" means any
generation, treatment, storage, recycling, transportation or
disposal of any Hazardous Substance.

          "Release" means any discharge, emission or release,
including a Release as defined in CERCLA at 42 U.S.C. Sec. 9601(22). 
The term "Released" has a corresponding meaning.

          "Subsidiary" or "Subsidiaries" of any Person means any
corporation, partnership, limited liability company, association,
trust, joint venture or other entity or organization of which
such Person, either alone or through or together with any other
Subsidiary, owns, directly or indirectly, more than 50% of the
stock or other equity interests, the holder of which is generally
entitled to vote for the election of the board of directors or
other governing body of such corporation, partnership, limited
liability company, association, trust, joint venture or other
entity or organization.

          "Tax" and "Taxes" mean any and all foreign, federal,
state, local or other tax assessments or other governmental
charges, including without limitation any income, franchise,
sales, use, withholding, employment, payroll, social security,
property, VAT, transfer, trade, net worth, business, occupation
taxes and any customs duties, other duties or governmental
charges, including without limitation any installment payment for
any of the foregoing, that are from time to time, imposed by, or
required to be paid to any governmental authority (including
penalties, additions, and interest on or with respect to any of
the foregoing).

          "Third Quarter Balance Sheet" means, with respect to
each Contributing Subsidiary, the balance sheet of its
Contributed Business as of September 30, 1995.

          "Third Quarter Financial Statements" means, with
respect to each Contributing Subsidiary, its Third Quarter
Balance Sheet and the unaudited statement of income for its
Contributed Business for the nine-month period then ended, in the
case of DEI, attached as Annex I and, in the case of Radian,
attached as Annex II.

          "Transaction Documents" means collectively, this
Agreement, the LLC Agreement, the Confidentiality Agreement, and
any other documents, instruments and agreements related to or
contemplated under such agreements or to be executed at the
Closing.

          (b)  Each of the following terms is defined in the
Section set forth opposite such term:

                Term                            Section

            Acquiror                            5.17(b)
            Acquiror Proposal                   5.17(b)
            Anti-Competitive Contract           3.27(c)          
            Assumed Contracts                   2.02(a)
            Assumed Liabilities                    2.04
            BSL                                    5.12
            Claims                              8.02(h)
            Closing                             2.08(a)
            Closing Date                        2.08(a)
            Contracts                           2.02(a)
            Contributed Amounts                 2.02(a)
            Contributed Assets                  2.02(a)
            Contributing Subsidiary            Preamble
            Conveyance Documents                2.08(b)
            DEI                                Preamble
            DEI Plans                              3.28
            DEI 401(k) Plan                        6.03
            Derivative Financial Instrument        3.26
            Ecobilan Consent                    2.07(e)
            Employment Transfer Date               6.01
            Excluded Assets                        2.03
            Excluded Liabilities                   2.05
            HSB                                Preamble
            HSB ESOP                               3.28
            HSB Stock                              6.03
            Impaired Asset                         5.10
            Indemnified Party                      8.02
            Indemnified Parties                    8.02
            Indemnifying Party                     8.02
            IRS                                    3.28
            LLC Agreement                      Recitals
            Material Equity Investment Entity   3.27(a)
            Material Lease                         3.12
            Newco                              Recitals
            Newco Plans                            6.03
            Newco 401(k) Plan                      6.03
            Offeror                             5.17(b)
            Offeree                             5.17(b)
            Parent                             Preamble
            Permit                                 3.13
            Personal Property                   2.02(a)
            Radian                             Preamble
            Radian Plans                           3.28
            Real Property                          3.08
            Required Consent                       3.04
            Restricted Assets                   2.07(a)
            Shares                              5.17(b)
            Special Foreign Assets              2.07(f)
            Subsidiary Contracts                3.12(b)
            TDCC                               Preamble
            TDCC 401(k) Plan                       6.03

          1.02.  Accounting Terms and Determinations.  Unless
otherwise specified, all accounting terms used in this Agreement
shall be interpreted, all accounting determinations shall be
made, and all financial statements required to be delivered by
any Person under this Agreement shall be prepared in accordance
with GAAP applied on a basis consistent (except for changes
concurred in by such Person's independent public accountants)
with the Third Quarter Balance Sheet of such Person.


                           ARTICLE II

                   ORGANIZATION; CONTRIBUTION

          2.01.  Organization of Newco.  Upon the terms and
subject to the conditions of this Agreement, prior to the
Closing, DEI and Radian shall enter into and execute the LLC
Agreement and shall cause Newco to be formed under the laws of
the State of Delaware (or shall not undo these actions if they
have already occurred).  The LLC Agreement shall terminate if
this Agreement terminates and the Closing has not occurred. 
Newco shall conduct no business, other than preparations for the
Closing, prior to the Closing.

          2.02.  Contribution.  (a) Upon the terms and subject to
the conditions of this Agreement, each of Radian and DEI agrees
and each of HSB and TDCC agrees to cause Radian and DEI,
respectively, to transfer, assign and deliver, or cause to be
transferred, assigned and delivered to Newco at Closing or, in
the case of Restricted Assets, at such time or times as permitted
pursuant to Section 2.07 of this Agreement, as a contribution,
free and clear of all Liens, other than Permitted Liens or Liens
set forth on Schedule 2.02(a), all of its right, title and
interest in, to and under the assets, properties and business
(other than Excluded Assets) of Radian and DEI, respectively, of
every kind and description, wherever located, real, personal or
mixed, tangible or intangible, of such party as the same shall
exist on the Closing Date or, in the case of Restricted Assets,
at such time or times as permitted pursuant to Section 2.07 of
this Agreement, including all assets (other than Excluded Assets)
shown on its Third Quarter Balance Sheet and not disposed of in
the ordinary course of business, and all assets (other than
Excluded Assets) thereafter acquired until the Closing Date by
such party and not disposed of in the ordinary course of business
(collectively, with respect to each such party, the "Contributed
Assets").  Without in any way limiting the generality of the
foregoing, the Contributed Assets shall include (other than
Excluded Assets) all right, title and interest of such party in,
to and under:

          (i)    all real property and leases of, and other
     interests in, real property (including leases, lands,
     options and other such interests), in each case together
     with all buildings, fixtures and improvements erected
     thereon and all easements, rights of way and all of such
     party's rights in any public or private thoroughfare
     abutting such real property including without limitation,
     the items listed on Schedule 3.08(a);

          (ii)   all personal property and interests therein,
     including machinery, pipes, tools, equipment, furniture,
     office equipment, communications equipment, vehicles,
     storage tanks, spare and replacement parts, fuel and other
     trade fixtures, fixed assets and tangible property
     ("Personal Property"), including without limitation the
     items listed on Schedule 3.08(b);

          (iii)  all raw materials, work-in-process, supplies and
     other inventories;

          (iv)   all rights under all contracts, agreements,
     leases, licenses, commitments, sales and purchase orders and
     other instruments (collectively, "Contracts") to which the
     Contributing Subsidiary is a party, including, but not
     limited to, Contracts listed on Schedule 2.02(a)(iv) or
     Schedule 3.12(a) and all Contracts entered into by each
     Contributing Subsidiary between the date of this Agreement
     and the Closing (collectively, the "Assumed Contracts")
     (provided, however, that the Assumed Contracts shall not
     include Contracts entered into in breach of this Agreement);

          (v)    all accounts receivable, notes receivable and
     other receivables;

          (vi)   all prepaid expenses, including, but not limited
     to, real estate and ad valorem taxes, leases and rentals;

          (vii)  all petty cash located at operating facilities
     of such party;

          (viii) all rights, claims, credits, causes of action or
     rights of set-off of such party or its Subsidiaries against
     third parties, including without limitation unliquidated
     rights under manufacturers' and vendors' warranties (but
     excluding counterclaims, cross claims, warranty claims and
     indemnity claims and other rights, whether or not yet
     asserted, relating to litigation or other claims against
     such party that are not Assumed Liabilities);

          (ix)   all licenses, permits or other governmental
     authorizations, including without limitation the items
     listed on Schedule 3.13;

          (x)    Books and Records;

          (xi)   with respect to DEI, all funds on deposit in the
     bank accounts set forth on Part I of Schedule 2.02(a)(xi)
     and, with respect to Radian, all funds on deposit in the
     bank accounts set forth on Part II of Schedule 2.02(a)(xi)
     (the "Contributed Amounts");

          (xii)  all capital stock and other securities or other
     ownership interests of the Material Equity Investment
     Entities listed on Schedule 3.27; 

          (xiii) all of the Contributing Subsidiary's
     Intellectual Property Rights; 

          (xiv)  all goodwill attributable to the Contributing
     Subsidiary; and

          (xv)   with respect to DEI, the assets and properties
     set forth on Part I of Schedule 2.02(b) and with respect to
     Radian, the assets and properties set forth on Part II of
     Schedule 2.02(b). 

          (b)     Upon the terms and subject to the conditions of
this Agreement, TDCC agrees to transfer, assign and deliver, or
cause to be transferred, assigned and delivered, to DEI prior to
the Closing, as a contribution, free and clear of all Liens,
other than Permitted Liens or Liens set forth on
Schedule 2.02(b)(x), all of the right, title and interest in, to
and under the assets and properties set forth on Part I of
Schedule 2.02(b) (except for Restricted Assets).  Upon the terms
and subject to the conditions of this Agreement, HSB agrees to
transfer, assign and deliver, or cause to be transferred,
assigned and delivered, to Radian prior to the Closing, as a
contribution, free and clear of all Liens, other than Permitted
Liens or Liens set forth on Schedule 2.02(b)(x), all of the
right, title and interest in, to and under the assets and
properties set forth on Part II of Schedule 2.02(b) (in each
case, except for Restricted Assets).  

          2.03.  Excluded Assets.  Each party expressly
understands and agrees that, notwithstanding any provision of
this Agreement to the contrary, the following assets and
properties of the Contributing Subsidiaries (the "Excluded
Assets") shall be excluded from the Contributed Assets:

          (i)    all assets sold or otherwise disposed of in the
     ordinary course of the operation of its business and not in
     violation of any provisions of this Agreement during the
     period from the date of this Agreement until the Closing
     Date;

          (ii)   counterclaims, cross claims, warranty claims and
     indemnity claims and other rights, whether or not yet
     asserted, relating to litigation or other claims against
     such party that are not Assumed Liabilities;

          (iii)  all rights pursuant to any loan agreement
     between DEI and TDCC or Radian and HSB, other than the loan
     agreement dated as of the Closing Date between HSB and
     Newco; 

          (iv)   minute books for the board of directors,
     committees or shareholder meetings, incorporation documents,
     and stock transfer records and tax or similar or related
     corporate records;

          (v)    all licenses provided by TDCC to DEI and its
     Subsidiaries to use "DOW" in any company name and the DOW
     Diamond trademark;

          (vi)   all assets (including refunds and credits)
     related to foreign, U.S. Federal and state income taxes,
     both current and deferred;

          (vii)   all insurance policies and proceeds therefrom; 

          (viii)  with respect to DEI, the bank accounts (but not
     the funds in those accounts) set forth on Part I of
     Schedule 2.02(a)(xi) and, with respect to Radian, the bank
     accounts (but not the funds in those accounts) set forth on
     Part II of Schedule 2.02(a)(xi); 

          (ix)   all licenses, permits or other governmental
     authorizations, listed on Schedule 3.13, which are not
     transferable as a matter of law; 

          (x)    with respect to Radian, the assets and
     properties set forth on Schedule 2.03(x); and

          (xi)   with respect to DEI, the assets and properties
     set forth on Schedule 2.03(xi).

          2.04.  Assumption of Liabilities.  Upon the terms and
subject to the conditions of this Agreement, DEI and Radian shall
cause Newco, effective at the time of Closing (except for
liabilities and obligations related to Restricted Assets, which
shall be assumed by Newco when the related Restricted Asset is
contributed to Newco), to assume the following liabilities and
obligations of the Contributing Subsidiaries as the same shall
exist on the Closing Date (collectively, the "Assumed
Liabilities"):

          (a)    except to the extent that a liability or
obligation referred to in this subparagraph (a) is an Excluded
Liability, all liabilities and obligations reflected on the Third
Quarter Balance Sheet of each party (other than any such
liabilities paid or discharged prior to the Closing Date) and all
liabilities and obligations of the type included in the line item
categories set forth on such Third Quarter Balance Sheet incurred
after the date of the Third Quarter Balance Sheet until the
Closing Date to the extent such liabilities and obligations are
incurred in the ordinary course of business and are not incurred
in violation of any provision of this Agreement (and other than
any such liabilities paid or discharged prior to the Closing
Date); 

          (b)    all liabilities and obligations of the
Contributing Subsidiaries arising under the Assumed Contracts,
including without limitation the Contracts listed on Schedule
2.02(a)(iv) or Schedule 3.12(a), other than (x) liabilities or
obligations arising under Contracts that are Excluded Assets, (y)
liabilities or obligations attributable to any failure by any
such party or its Affiliates to comply with the terms of
Contracts that are Excluded Assets or (z) liabilities or
obligations arising under Contracts that are entered into in
breach of this Agreement; and

          (c)    all liabilities and obligations set forth in
Part I of Schedule 2.04(c) (which shall be certain liabilities
and obligations of TDCC assumed by DEI) and in Part II of
Schedule 2.04(c) (which shall be certain liabilities and
obligations of HSB assumed by Radian) except, in each case, for
liabilities related to Restricted Assets.
     
          2.05.  Excluded Liabilities.  Notwithstanding any
provision in this Agreement, Newco is assuming only the Assumed
Liabilities and is not assuming any other liability or obligation
of whatever nature, whether presently in existence or arising
after the date of this Agreement (all such liabilities and
obligations not being assumed being referred to as the "Excluded
Liabilities").  Without in any way limiting the generality of the
foregoing, the following are Excluded Liabilities for purposes of
this Agreement:

          (i)    any liability or obligation arising from, or
     with respect to, the Contributed Assets or the operations of
     the Contributed Business which is incurred in, or
     attributable to, any period ending on or prior to
     September 30, 1995, except (x), to the extent not excluded
     pursuant to clause (ii), (iii), (iv), (v) or (vi) below,
     liabilities and obligations reflected on the Third Quarter
     Balance Sheet of each party or (y) any liability or
     obligation pursuant to the Assumed Contracts which, pursuant
     to Section 2.04(b) of this Agreement, is an Assumed
     Liability;

          (ii)   with respect to Radian, liability for Debt to
     HSB to the extent that Radian's Net Debt exceeds
     $18,672,594;
 
          (iii)  with respect to DEI, liability for Debt to TDCC;
     provided, however, that (a) Debt owed by Dow Umweltservice
     GmbH to Dow Deutschland Inc. as reflected on Schedule 1.01
     and (b) accounts payable under existing written intercompany
     service agreements not to exceed $3.256 million shall be
     Assumed Liabilities and not Excluded Liabilities; 

          (iv)   any liability or obligation relating to an
     Excluded Asset; 

          (v)    all liabilities related to foreign, U.S. Federal
     and state income taxes, both current and deferred; and

          (vi)   all Environmental Liabilities.

          2.06.  Intentionally Omitted.

          2.07.  Assignment of Certain Contracts and Other
Assets.  (a) Anything in this Agreement to the contrary notwith-
standing, this Agreement shall not constitute an agreement to
assign any asset listed on Schedule 3.05 or any asset (including
without limitation securities or other ownership interests) or
any Contract or Permit or instrument beneficially owned by either
Contributing Subsidiary or listed on Schedule 2.02(b), or any
claim or right or any benefit arising thereunder or resulting
therefrom if, in any such case, an attempted assignment thereof,
without the consent of a third party thereto, would constitute a
breach or other contravention thereof or in any way adversely
affect the rights of any party thereunder unless or until such
time as the consent of such third party has been obtained
(collectively, the "Restricted Assets").  

          (b)    Both before and after the Closing, each party
shall use all commercially reasonable efforts to obtain any
required consent of third parties for the assignment of any of
its Restricted Assets or any claim or right or any benefit
arising thereunder to Newco.  The parties shall cause Newco to
accept assignment of, and in the case of Contracts, assume the
liabilities relating to, any Restricted Asset as soon as such
consent is obtained and shall treat such assignment or assumption
as being effective on the Closing Date.  If such consent to
assignment is not obtained, or if an attempted assignment thereof
would be ineffective or would adversely affect the rights of such
party thereunder so that Newco would not in fact receive all such
rights, the parties will use all commercially reasonable efforts
to obtain for Newco the benefits that Newco would have obtained
if such Restricted Asset could have been assigned to Newco. 
Those efforts shall include, if such actions will not cause, on a
collective basis, material adverse consequences for Newco or the
parties to this Agreement or if the relevant third party consents
to such action, (i) subcontracting, sub-licensing or sub-leasing
to Newco the rights and obligations under the Restricted Asset,
or (ii) making an arrangement under which such party would
enforce for the benefit of Newco, with Newco assuming such
party's obligations or providing the personnel, equipment or
facilities (at Newco's expense) to such party to perform those
obligations, any and all rights of such party against a third
party.  Except as provided in Section 2.07(e), each party will
promptly pay to Newco, when received, all monies (net of
reasonable out-of-pocket expenses) received by such party in
respect of any Restricted Asset or any claim or right or any
benefit arising thereunder, regardless of whether a consent for
the assignment of such Restricted Asset has been or can be
obtained.

          (c)    Notwithstanding the foregoing, if efforts to
obtain any required consent of third parties for the assignment
of any of its Restricted Assets or any claim or right or any
benefit arising thereunder to Newco would require Newco to (i)
assume any additional obligation (including, but not limited to,
an agreement from Newco which restricts the business activity of
Newco or any of its Affiliates or contains any form of non-
competition clause) or (ii) incur any additional out-of-pocket
expense not reasonably related to the value of the Restricted
Asset, then such obligation or expense shall not be assumed or
incurred without the prior written approval of both TDCC and HSB. 
If such approval is not obtained, and if all other commercially
reasonable efforts to obtain such consent have failed, then TDCC,
HSB or such Contributing Subsidiary, as the case may be, shall
dispose of such Restricted Asset.  Such party will promptly pay
to Newco, when received, all monies (net of reasonable out-of-
pocket expenses) received by such party in respect of any
disposition of any Restricted Asset.

          (d)    If, and to the extent that in respect of any
Restricted Asset, (i) consent from a third party cannot be
obtained, (ii) any of the arrangements contemplated in
Section 2.07(b) cannot be made or (iii) approval from TDCC or HSB
to incur any expense or assume any obligation cannot be obtained
and disposition as contemplated in Section 2.07(c) cannot be
made, none of the parties to this Agreement shall have any
further obligation to the other under this Section 2.07 with
respect to such Restricted Asset; provided, however, that the
provisions set forth in Sections 5.12 and 8.02 shall survive with
respect to such Restricted Asset.

          (e)    DEI's shares of common stock of Ecobilan, S.A.
shall be treated as a Restricted Asset until consents can be
obtained from third parties such that it would not be prejudicial
to Newco for these shares to be transferred to Newco (the
"Ecobilan Consent").  The earnings of Ecobilan, S.A. prior to the
date that the Ecobilan Consent is effective shall not,
notwithstanding anything to the contrary in this Agreement, inure
to the benefit of Newco.

          (f)    The capital stock and other securities or other
ownership interests of each of the Material Equity Investment
Entities (as defined in Section 3.27) owned by Radian and listed
on Schedule 2.07(f) (the "Special Foreign Assets") shall be
treated as a Restricted Asset; provided, however, that Radian
shall not be required to attempt to assign any of the Special
Foreign Assets or any claim or right or any benefit arising
thereunder to Newco.  Notwithstanding anything to the contrary in
this Agreement, Radian agrees to transfer, assign and deliver, or
cause to be transferred, assigned and delivered to Newco as a
contribution, free and clear of all Liens, other than Permitted
Liens or Liens set forth on Schedule 2.02(b)(x), all proceeds
(net of reasonable out-of-pocket expenses), if any, with respect
to the dissolution, sale or disposition of any of the Special
Foreign Assets as soon as practicable after such dissolution,
sale or disposition.  Radian, at the direction, with the
assistance, and in collaboration with Newco, will use all
commercially reasonable efforts to take, or cause to be taken,
all actions and to do, or cause to be done, all things necessary
or desirable under applicable laws and regulations and any
applicable contractual obligations to cause the dissolution, sale
or disposition, on the best terms practicable, of the Special
Foreign Assets as soon as practicable after the Closing Date.

          2.08.  Closing.  (a)  The closing (the "Closing") of
the contribution of the Contributed Assets and the assumption by
Newco of the Assumed Liabilities under this Agreement shall take
place at the offices of Mayer, Brown & Platt, 190 South LaSalle
Street, Chicago, Illinois 60603 as soon as possible, but in no
event later than two (2) business days, after satisfaction of the
conditions set forth in Article VII, or at such other time or
place as the parties may agree (the "Closing Date").  It is
understood and agreed that notwithstanding the Closing Date for
the transactions described herein, the Contributed Business of
each Contributing Subsidiary shall be deemed to have been
operated for the benefit of Newco from and after January 1, 1996. 
TDCC agrees to reimburse Newco for any dividends declared or paid
by DEI to TDCC or any of its Affiliates during between January 1,
1996 and the Closing Date. HSB agrees to reimburse Newco for any
dividends declared or paid by Radian to HSB or any of its
Affiliates during the period between January 1, 1996 and the
Closing Date. 

          (b)    At the Closing, Newco shall enter into an
Assignment and Assumption Agreement with each of TDCC, HSB, DEI
and Radian reasonably satisfactory in form and substance to TDCC
and HSB and their respective counsel, and each of TDCC, HSB, DEI
and Radian shall deliver to Newco such special warranty deeds,
bills of sale, stock powers, endorsements, consents and
assignments reasonably satisfactory in form and substance to TDCC
and HSB and their respective counsel, and other good and
sufficient instruments of conveyance and assignment (the
"Conveyance Documents") as TDCC and HSB and their respective
counsel shall deem reasonably necessary or appropriate to vest in
Newco all right, title and interest in, to and under the
Contributed Assets and to effect the assumption by Newco of the
Assumed Liabilities.

          2.09.  Closing Balance Sheet.  (a)  As promptly as
practicable after the Closing Date, each of HSB and TDCC will
prepare, or cause its respective Contributing Subsidiary to
prepare, a Closing Balance Sheet.  TDCC will cause Deloitte &
Touche LLP and HSB will cause Coopers & Lybrand LLP to conduct an
audit for the purpose of rendering its unqualified report on its
Closing Balance Sheet.  As promptly as practicable, but no later
than February 29, 1996, each of DEI or Radian will cause its
Closing Balance Sheet, together with the report thereon of
Deloitte & Touche LLP or Coopers & Lybrand LLP, as the case may
be, to be delivered to the other party.  Each Closing Balance
Sheet shall (x) fairly present the consolidated financial
position of the Contributed Business as of 11:59 p.m. on December
31, 1995 on a basis consistent with the accounting principles
used in the preparation of the Third Quarter Balance Sheet of
such Contributing Subsidiary and (y) be prepared in accordance
with GAAP on a basis consistent with those used in the
preparation of such Third Quarter Balance Sheet, except, in the
case of DEI, with respect to the treatment of goodwill and
except, in the case of Radian, with respect to the treatment of
salary continuation agreements.

          (b)    The parties agree that they will, and DEI and
Radian agree to cause Newco and their respective independent
accountants to, cooperate and assist in the preparation of the
Closing Balance Sheets.

                           ARTICLE III

        REPRESENTATIONS AND WARRANTIES OF DEI AND RADIAN

          EXCEPT FOR THE REPRESENTATIONS AND WARRANTIES
SPECIFICALLY PROVIDED FOR IN THIS AGREEMENT, ALL OF THE
CONTRIBUTED ASSETS ARE CONTRIBUTED TO NEWCO "AS IS" AND "WHERE
IS" WITHOUT IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR
INTENDED USE OR PARTICULAR PURPOSE OR OTHERWISE.

          Each Contributing Subsidiary hereby represents and
warrants to each other party and Newco as of the date of this
Agreement that:

          3.01.  Existence and Power.  Such Contributing
Subsidiary is duly organized, validly existing and in good
standing under the laws of its jurisdiction of organization, and
has all powers and all governmental licenses, authorizations,
consents and approvals required to carry on its business as now
conducted.  Such Contributing Subsidiary is duly qualified to do
business as a foreign corporation and is in good standing in each
jurisdiction where the character of the property owned or leased
by it or the nature of its activities make such qualification
necessary, except for those jurisdictions where failure to be so
qualified would not, individually or in the aggregate, result in
a Material Adverse Change.  Such Contributing Subsidiary has
delivered or made available to the other parties true and
complete copies of the certificate of incorporation and bylaws of
such party as currently in effect.

          3.02.  Authorization.  The execution, delivery and
performance by such Contributing Subsidiary of this Agreement,
the other Transaction Documents to which it is a party and all
other documents, instruments and certificates executed and
delivered by such Contributing Subsidiary in connection with this
Agreement or with such other documents, and the consummation by
such Contributing Subsidiary of the transactions contemplated by
this Agreement or by such other documents are within such
Contributing Subsidiary's powers and have been duly authorized by
all necessary action on the part of such Contributing Subsidiary. 
This Agreement and each of the other Transaction Documents have
been duly and validly executed and delivered by such Contributing
Subsidiary and each constitutes a valid and binding agreement of
such Contributing Subsidiary, enforceable in accordance with its
terms, except as (i) the enforceability thereof may be limited by
applicable bankruptcy, insolvency, fraudulent transfer,
moratorium or similar laws from time to time in effect affecting
creditors' rights generally and (ii) the availability of
equitable remedies may be limited by equitable principles of
general applicability.

          3.03.  Governmental Authorization.  Except as set forth
on Schedules 3.03 and 3.05, the execution, delivery and
performance by such Contributing Subsidiary of this Agreement,
the other Transaction Documents to which it is a party and all
other documents, instruments and certificates executed and
delivered by such Contributing Subsidiary in connection with this
Agreement or with such other documents, require no action by or
in respect of, or filing with, any governmental body, agency,
official or authority other than any actions or filings necessary
to transfer or obtain any Permit.

          3.04.  Non-Contravention.  The execution, delivery and
performance by such Contributing Subsidiary of this Agreement,
the other Transaction Documents to which it is a party and all
other documents, instruments and certificates executed and
delivered by such Contributing Subsidiary in connection with this
Agreement or with such other documents do not and will not (i)
contravene or conflict with the certificate of incorporation or
bylaws of such Contributing Subsidiary; (ii) assuming compliance
with the matters referred to in Section 3.03, contravene or
conflict with or constitute a violation of any provision of any
law, regulation, judgment, injunction, order or decree binding
upon or applicable to such Contributing Subsidiary or its
Contributed Business; (iii) assuming the obtaining of all
consents necessary for the assignment of that party's Restricted
Assets (each such consent, a "Required Consent" and collectively,
the "Required Consents"), constitute a default under or give rise
to any right of termination, cancellation or acceleration of any
right or obligation or to a loss of any benefit relating to the
Contributed Business of such Contributing Subsidiary or its
Affiliates to which such Contributing Subsidiary is entitled, or
cause or require the creation of any encumbrance on any
Contributed Asset or the assumption of any debt, other than
Assumed Liabilities, by Newco under any provision of any note,
bond, mortgage, indenture, lease, license, franchise, permit,
agreement, contract or other instrument or obligation binding
upon such Contributing Subsidiary or its Subsidiaries, or any
Person controlling such Contributing Subsidiary or by which any
of the Contributed Assets is or may be bound for which a written
waiver has not been obtained as of the date of this Agreement, or
any Permit; (iv) result in the creation or imposition of any Lien
on any Asset, other than Permitted Liens; or (v) contravene or
conflict with any collective bargaining agreement binding upon
such Contributing Subsidiary.

          3.05.  Restricted Assets.  Schedule 3.05 sets forth, as
to such Contributing Subsidiary, all of that Contributing
Subsidiary's Restricted Assets (other than Assumed Contracts that
are Restricted Assets).

          3.06.  Third Quarter Financial Statements.  The Third
Quarter Financial Statements of such Contributing Subsidiary
fairly present, in all material respects in conformity with GAAP
applied on a consistent basis (except, in the case of DEI with
respect to the treatment of goodwill and, except, in the case of
Radian, with respect to the treatment of salary continuation
agreements), the financial position of such Contributing
Subsidiary and its respective Subsidiaries, taken as a whole, as
of the dates thereof and their results of operations for the
periods then ended.  The Third Quarter Financial Statements
reflect all adjustments which are, in the opinion of the
management of such Contributing Subsidiary, necessary for a fair
statement of the results for the period.  All such adjustments
are, in the opinion of the management of such Contributing
Subsidiary, of a normal recurring nature.

          3.07.  Absence of Certain Changes.  Since September 30,
1995, the Contributed Business of such Contributing Subsidiary or
its Affiliates has been conducted in the ordinary course
consistent with past practice, and except as set forth on
Schedule 3.07 or as otherwise required or contemplated by this
Agreement, there has not been, with respect to the Contributed
Business of such Contributing Subsidiary or its Affiliates:

          (a)    any Material Adverse Change;

          (b)    any creation or other incurrence of any Lien
     (other than Permitted Liens or Liens described on
     Schedule 2.02(a)) on any material Contributed Asset other
     than in the ordinary course of business consistent with past
     practice;

          (c)    any creation of any obligation or liability
     (whether fixed, contingent, unliquidated, absolute or
     otherwise) with respect to any of the Contributed Assets to
     be contributed by it or its Affiliates or with respect to
     its Contributed Business that would be an Assumed Liability,
     except trade or business obligations incurred in the
     ordinary course of business consistent with past practice;

          (d)    any damage, destruction or other casualty loss
     (whether or not covered by insurance) affecting its
     Contributed Business or any Contributed Asset which,
     individually or in the aggregate, has had, or could
     reasonably be expected to result in, a Material Adverse
     Change;

          (e)    any transaction, contract, agreement or other
     instrument entered into, or commitment made, by such
     Contributing Subsidiary relating to its Contributed Business
     or any Contributed Asset (including the acquisition or
     disposition of any assets) or any relinquishment by such
     Contributing Subsidiary of any contract or other right, in
     either case, material to its Contributed Business taken as a
     whole, other than transactions and commitments in the
     ordinary course of business consistent with past practices
     and those required or contemplated by this Agreement or the
     other Transaction Documents or any material amendment,
     modification or waiver of any Contract;

          (f)    any change in any method of accounting or
     accounting practice by such Contributing Subsidiary with
     respect to its Contributed Business, except for any such
     change after the date of this Agreement required by reason
     of a concurrent change in GAAP;

          (g)    any (i) grant of any severance or termination
     pay to any employee of its Contributed Business, (ii)
     entering into any employment, deferred compensation or other
     similar agreement (or any amendment to any such existing
     agreement) with any employee of its Contributed Business,
     (iii) increase in benefits payable under any existing
     severance or termination pay policies or employment
     agreements or (iv) increase in compensation, bonus or other
     benefits payable to employees of its Contributed Business,
     other than, in the case of clauses (i) through (iv) above,
     in the ordinary course of business consistent with past
     practice;

          (h)    any labor dispute, other than routine individual
     grievances, or any activity or proceeding by a labor union
     or representative thereof to organize any employees of its
     Contributed Business, or any lockouts, strikes, slowdowns,
     work stoppages or threats thereof by or with respect to such
     employees;

          (i)    any commitment for a capital expenditure or for
     additions or improvements to property, buildings and
     equipment, in each case that is anticipated to have an
     outstanding balance in excess of $500,000 on the Closing
     Date;

          (j)    any transaction, contract, agreement or other
     instrument entered into, or commitment made, by such
     Contributing Subsidiary with an Affiliate of such
     Contributing Subsidiary, and which relates to the
     Contributed Business of such Contributing Subsidiary or its
     Affiliates; or
     
          (k)    declared, set aside or paid any dividend or
     other distribution (whether in cash, stock, or property
     or any combination thereof) in respect of its capital
     stock.

          3.08.  Properties.  (a)  Schedule 3.08(a) correctly
describes all owned, leased or subleased real property included
in the Contributed Assets (collectively, the "Real Property" of
such Contributing Subsidiary), specifying in the case of leases
or subleases, the name of the lessor or sublessor, the lease term
and basic annual rent.

          (b)    Schedule 3.08(b) correctly describes all owned,
leased or subleased tangible Personal Property of such
Contributing Subsidiary with a book value in excess of $100,000,
and, in the case of owned personal property, any Liens thereon
other than Permitted Liens or Liens set forth on
Schedule 2.02(a), specifying in the case of leases or subleases,
the name of the lessor or sublessor, the lease term and basic
annual rent.

          (c)    (i)  Such Contributing Subsidiary or its
     Affiliates have good title (subject only to Permitted Liens
     or Liens set forth on Schedule 2.02(a)) to all Contributed
     Assets (whether personal, tangible or intangible) reflected
     on its Third Quarter Balance Sheet or acquired after the
     date of this Agreement, except for properties and assets
     sold since the date of this Agreement in the ordinary course
     of business consistent with past practice.  Upon
     consummation of the transactions contemplated by this
     Agreement, Newco will have acquired good title in and to, or
     a valid leasehold with respect to, each of the Contributed
     Assets of such Contributing Subsidiary or its Affiliates
     free and clear of all Liens, except for Permitted Liens or
     Liens set forth on Schedule 2.02(a).

          (ii)   All Material Leases (as defined in
     Section 3.12(a)(i)) are in good standing and are valid,
     binding and enforceable against such Contributing Subsidiary
     or its respective Subsidiaries (and, to the knowledge of
     such Contributing Subsidiary, each other party thereto) in
     accordance with their respective terms, and there does not
     exist, under any lease of real property or personal
     property, any material default or any event which, with
     notice or lapse of time or both, would constitute a material
     default by such Contributing Subsidiary or its Affiliates
     or, to the knowledge of such Contributing Subsidiary, by any
     other party thereto.

          (iii)  The buildings, facilities, structures and
     equipment currently used in the Contributed Business of such
     Contributing Subsidiary or its Affiliates are in reasonable
     operating condition and repair and have been reasonably
     maintained consistent with standards generally followed in
     the industry (giving due account to the age and length of
     use of same, ordinary wear and tear excepted), are
     substantially suitable for their present uses and, to the
     knowledge of such Contributing Subsidiary, have no material
     defects.

          (iv)   The buildings, facilities, structures and
     equipment included in the Contributed Assets of such
     Contributing Subsidiary or its Affiliates currently have
     access to (1) public roads or valid easements over private
     streets or private property for such ingress to and egress
     from all such plants, buildings and structures and (2) water
     supply, storm and sanitary sewer facilities, telephone, gas
     and electrical connections, fire protection, drainage and
     other public utilities, as is necessary for the conduct of
     the Contributed Business of such Contributing Subsidiary or
     its Affiliates as currently or heretofore conducted.

          (d)    Schedule 3.08(d) sets forth all Liens securing
obligations for Debt that encumber any of the Contributed Assets.

          (e)    Except as set forth on Schedule 3.08(e), no
violation of any law, regulation, ordinance or Permit (including
without limitation laws, regulations, ordinances or Permits
relating to zoning, city planning or similar matters) relating to
the Contributed Business of such Contributing Subsidiary or its
Affiliates currently exists or has existed at any time since
January 1, 1995, except for (i) violations which have not had and
would not reasonably be expected to result, individually or in
the aggregate, in a Material Adverse Change, and (ii) matters
relating to Environmental Laws which are the subject of
Section 3.20.  To the knowledge of such Contributing Subsidiary,
there are no developments affecting any of the Contributed Assets
of such Contributing Subsidiary or its Affiliates pending or
threatened which could reasonably be expected to detract
materially from the value of such Contributed Assets, materially
interfere with any present or intended use of any such
Contributed Assets or materially adversely affect the
marketability of such Contributed Assets;

          (f)    Such Contributing Subsidiary has delivered or
made available to the other Contributing Subsidiary, true and
complete copies of all records, title policies and reports,
leases, contracts and other materials referred to in this
Section 3.08 or described in Schedules 3.08(a) or (b).

          3.09.  Sufficiency of Assets.  The Contributed Assets
contributed by such Contributing Subsidiary constitute all of the
assets (other than Excluded Assets) used or held for use by the
Contributing Subsidiary and its respective Subsidiaries in their
business, and no other assets (other than the Excluded Assets)
are required to operate the Contributed Business of such
Contributing Subsidiary or its Affiliates substantially as
currently or heretofore conducted.

          3.10.  No Undisclosed Liabilities.  Except as set forth
on Schedule 3.10, there are no liabilities of the Contributed
Business of any kind whatsoever, whether accrued, contingent,
absolute, determined, determinable or otherwise, and there is no
existing condition, situation or set of circumstances which could
reasonably be expected to result in such a liability, other than:

          (i)    liabilities disclosed or provided for in its
     Third Quarter Balance Sheet; or

          (ii)   liabilities incurred in the ordinary course of
     business consistent with past practice.

          3.11.  Litigation.  Except as set forth on
Schedules 3.05, 3.11 or 3.18, there is no action, suit, or
proceeding (or, to the knowledge of such Contributing Subsidiary,
investigation) pending against, or to the knowledge of such
Contributing Subsidiary, threatened against or affecting, its
Contributed Business or any of its Contributed Assets before any
court or arbitrator or any governmental body, agency or official
(nor, to the knowledge of such Contributing Subsidiary, is there
any basis therefor) which, if determined or resolved adversely in
accordance with the plaintiff's demands, would reasonably be
expected to result in a Material Adverse Change or which in any
manner challenges or seeks to prevent, enjoin, alter or
materially delay the transactions contemplated by this Agreement.

          3.12.  Material Contracts.  (a)  Except for the
Contracts disclosed in Schedule 3.12(a), with respect to its
Contributed Business, such Contributing Subsidiary and its
respective Subsidiaries are not a party to or subject to:

          (i)    any lease providing for annual rentals or an
     aggregate rental of $100,000 or more (each a "Material
     Lease");

          (ii)   any Contract for the purchase of materials,
     supplies, goods, services, equipment or other assets
     (including the Contributed Assets) which either provides
     payments by such Contributing Subsidiary of $100,000 or more
     annually or extends for a term of greater than one year;

          (iii)  any Contract providing for annual payments of
     $1,000,000 or more or extending beyond two years;

          (iv)   any sales, distribution or other similar
     agreement providing for the sale by such Contributing
     Subsidiary of materials, supplies, goods, services,
     equipment or other assets that, for the period subsequent to
     January 1, 1995, provided any revenue to such Contributing
     Subsidiary or its respective Subsidiaries or any other such
     agreements to be performed subsequent to the date of this
     Agreement;

          (v)    any partnership, joint venture or other similar
     contract arrangement or agreement;

          (vi)   any option agreement, license agreement,
     franchise agreement or other agreement in respect of similar
     rights granted to or held by such Contributing Subsidiary;

          (vii)  any agency, dealer, sales representative or
     other similar agreement;

          (viii) any agreement, contract or commitment that
     substantially limits the freedom of such Contributing
     Subsidiary or its respective Subsidiaries to compete in any
     line of business or with any Person or in any area or to
     own, operate, sell, transfer, pledge or otherwise dispose of
     or encumber any of its Contributed Assets or which would so
     limit the freedom of Newco after the Closing Date;

          (ix)   any agreement, contract or commitment which is
     or relates to an agreement with or for the benefit of any
     Affiliate of such Contributing Subsidiary;

          (x)    any labor union contract;

          (xi)   any agreement, contract or commitment with any
     executive, director or officer of such Contributing
     Subsidiary (other than those set forth on Schedule 3.28);

          (xii)  any agreement or commitment pursuant to which
     such Contributing Subsidiary will make loans or advances, or
     has or will have incurred debts or become a guarantor or
     surety or pledged its credit on or otherwise become
     responsible with respect to any undertaking of another
     (except for the negotiation or collection of negotiable
     instruments in the ordinary course of business);

          (xiii) any indentures, credit agreements, loan
     agreements, notes, mortgages, security agreements or other
     agreements for financing; or

          (xiv)  Except as set forth on Schedule 3.28, any other
     agreement, contract or commitment not made in the ordinary
     course of business which is material to its Contributed
     Business taken as a whole.

          (b)    Each of the Assumed Contracts of such
Contributing Subsidiary and each of the Contracts listed on
Schedule 3.12(a) relating to any of its respective Subsidiaries
(the "Subsidiary Contracts") is a valid and binding agreement of
such Contributing Subsidiary or its respective Subsidiaries and
is in full force and effect and, except as set forth on
Schedule 3.12(b), none of such Contributing Subsidiary, its
respective Subsidiary or, to the knowledge of such Contributing
Subsidiary, any other party to such Assumed Contract or
Subsidiary Contract is in default in any material respect under
the terms of any such Contract, nor, to the knowledge of such
Contributing Subsidiary, has any event or circumstance occurred
that, with notice or lapse of time or both, would constitute an
event of default thereunder.  True and complete copies of each
such Assumed Contract and Subsidiary Contract have been delivered
or made available to the other Contributing Subsidiary.  

          3.13.  Licenses and Permits.  Schedule 3.13 correctly
describes each material license, franchise, permit or other
similar authorization affecting, or relating in any way to, such
Contributing Subsidiary's Contributed Business (which description
shall include whether such license, franchise, permit or
authorization can be transferred to Newco), together with the
name of the government agency or entity issuing such license or
permit (each a "Permit," and together the "Permits").  Except as
set forth in Schedule 3.13, such Permits are valid and in full
force and effect and, assuming the related Required Consents are
obtained, are transferable and none of the Permits (other than
Permits that are Excluded Assets) will, assuming the related
Required Consents have been obtained, be terminated or impaired
or become terminable as a result of the transactions contemplated
by this Agreement.  Neither Contributing Subsidiary has any
reason to believe that any such Required Consent will not be
obtained within a reasonable time following the Closing Date. 
Except as set forth on Schedule 3.13, upon obtaining all related
Required Consents and upon transfer of the appropriate Permits,
Newco will have all of the right, title and interest in all the
Permits.  To the knowledge of such Contributing Subsidiary, no
license, franchise, permit or other similar authorization other
than those described on Schedule 3.13 is currently necessary for
the lawful operation of its Contributed Business in all material
respects as currently or heretofore conducted or the transfer of
its Contributed Business to Newco.

          3.14.  Insurance Coverage.  Such Contributing
Subsidiary has furnished or made available to the other
Contributing Subsidiary a list of, and copies of, all insurance
policies covering its Contributed Business and its employees. 
There is no claim relating to the Contributed Business by such
Contributing Subsidiary or its Affiliates pending under any of
such policies as to which coverage has been denied or disputed by
the underwriters of such policies.  All premiums billed under all
such policies have been paid and such Contributing Subsidiary or
its Affiliates are otherwise in full compliance with the terms
and conditions of all such policies.  Such policies of insurance
(or other policies providing substantially similar insurance
coverage) were in full force and effect for the period prior to
the Closing Date.  

          3.15.  Compliance with Laws.  Such Contributing
Subsidiary is not in violation of, has not since January 1, 1995
violated and/or, to such Contributing Subsidiary's knowledge is
not under investigation with respect to, and has not been
threatened to be charged with or given notice of any violation
of, any law, rule, ordinance or regulation, or judgment, order or
decree entered by any court, arbitrator or governmental
authority, domestic or foreign, applicable to the Contributed
Assets of such Contributing Subsidiary or its Affiliates or the
conduct of the Contributed Business of such Contributing
Subsidiary or its Affiliates, except for (i) violations that have
not had and would not reasonably be expected, individually or in
the aggregate, to result in a Material Adverse Change and (ii)
matters relating to Environmental Laws, which are the subject of
Section 3.20.

          3.16.  Inventories.  The inventories set forth in such
Contributing Subsidiary's Third Quarter Balance Sheet have been
properly stated at the lower of cost or fair market value
determined in accordance with GAAP consistently applied by such
Contributing Subsidiary.  Since the date of such Third Quarter
Balance Sheet, the inventories related to the Contributed
Business of such Contributing Subsidiary or its Affiliates have
been maintained in the ordinary course of business.  All of the
inventory recorded on its Third Quarter Balance Sheet consists of
items of a quality usable or saleable in the normal course of its
Contributed Business consistent with past practices and are and
will be in quantities sufficient for the normal operation of its
Contributed Business in accordance with past practice.  Except as
set forth on Schedule 3.16, such Contributing Subsidiary has good
title to each item of inventory which is part of its Contributed
Business, free and clear of all Liens.

          3.17.  Receivables; Payables.  All accounts, notes
receivable and other receivables reflected on the Third Quarter
Balance Sheet of such Contributing Subsidiary are, and all
accounts and notes receivable of such Contributing Subsidiary
arising from or otherwise relating to its Contributed Business
will be at the Closing Date, genuine and arise from bona fide
transactions.  Since the date of its Third Quarter Balance Sheet,
such Contributing Subsidiary has not made any change in its
normal practices regarding the collection of accounts receivable
or the payment of accounts payable (including without limitation,
the acceleration of collections or the deferral of payments). 
The aging of all accounts receivable for each Contributing
Subsidiary, held by such Contributing Subsidiary as of the date
of its Third Quarter Balance Sheet, is set forth in
Schedule 3.17.

          3.18.  Intellectual Property.  Schedule 3.18 sets forth
a complete and correct list from each Contributing Subsidiary of
(i) all patent applications (including provisional applications)
and patents, and all continuation, divisional, continuation-in-
part, reissue and reexamination applications and patents based on
any of such patent applications and patents and all foreign
equivalents of any of such patent, applications and patents held
by such Contributing Subsidiary; (ii) all disclosures or
descriptions of any invention, whether active or not, that have
not been converted to a patent application; (iii) all registered
copyrights, trademarks, service marks, service names, trade names
used by such Contributing Subsidiary together with any
applications filed by such Contributing Subsidiary for
registration of any of them; and (iv) all license agreements
relating to any of subsections (i) through (iii) to which such
Contributing Subsidiary is a party, irrespective of whether a
particular license agreement pertains to rights granted by the
Contributing Subsidiary, received by the Contributing Subsidiary
or both.  Schedule 3.18 also lists all pending and threatened
litigation relating to any one or more of subsections (i) through
(iv) and all actual litigation that has been finally settled
within three (3) years prior to the date of this Agreement. 
Schedule 3.18 further identifies any Intellectual Property Rights
within subsections (i) through (iv) that is subject to any court
order, consent decree, agreement or other instrument that
restricts the use or licensing of such Intellectual Property
Rights by such Contributing Subsidiary or its Subsidiaries.   

          3.19.  Finders' Fees.  Except as set forth in
Section 4.06, there is no investment banker, broker, finder or
other intermediary which has been retained by, or is authorized
to act on behalf of, such Contributing Subsidiary who might be
entitled to any fee or commission from the other parties or any
of their respective Subsidiaries or Newco upon consummation of
the transactions contemplated by this Agreement.

          3.20.  Environmental Matters.  (a)  Except as disclosed
on Schedule 3.20, and to the knowledge of such Contributing
Subsidiary, with respect to the Contributed Business of such
Contributing Subsidiary or its Affiliates:

          (i)    within the preceding five years, no written
     notice, notification, demand, request for information,
     citation, summons, complaint or order has been issued, no
     written complaint has been filed, no penalty has been
     assessed and no investigation or review is pending or
     threatened by any governmental entity or other Person with
     respect to any (A) alleged violation by such Contributing
     Subsidiary or its Affiliates of any Environmental Law or
     liability thereunder, (B) alleged failure by such
     Contributing Subsidiary to have any Environmental Permit,
     (C) Regulated Environmental Activity or (D) Release of
     Hazardous Substances;

          (ii)   the properties of such Contributing Subsidiary
     or its Affiliates included as part of the Contributed Assets
     are in compliance, in all material respects, with all
     Environmental Laws and all Environmental Permits required
     for operations have been obtained;

          (iii)  other than in material compliance with Environ-
     mental Laws or Environmental Permits, no polychlorinated
     biphenyls, radioactive material, urea formaldehyde, lead,
     dioxins, furans, asbestos, asbestos-containing material or
     underground storage tank (active or abandoned) is or has
     been present within the past five years at any property
     included as part of the Contributed Assets of such
     Contributing Subsidiary or its Affiliates;

          (iv)   other than Releases in volumes immaterial to,
     and in the normal course of the operations of, the
     Contributed Business, no unpermitted Hazardous Substance has
     been Released within the past five years (and no
     notification of such Release has been filed or made within
     the past five years) at, on or under any property included
     as part of the Contributed Assets of such Contributing
     Subsidiary or its Affiliates;

          (v)    no property included as part of the Contributed
     Assets of such Contributing Subsidiary or its Affiliates or
     any property to which such Contributing Subsidiary has,
     directly or indirectly, transported, or arranged for the
     transportation of, any Hazardous Substances is listed or
     proposed for listing, on the National Priorities List
     promulgated pursuant to CERCLA, on CERCLIS (as defined in
     CERCLA) or on any similar federal, state or foreign list of
     sites requiring investigation or clean-up;

          (vi)   there are no liens under Environmental Laws on
     any of the Contributed Assets of such Contributing
     Subsidiary or its Affiliates, no government actions have
     been taken or are in process which could subject any of such
     Contributed Assets to such liens and such Contributing
     Subsidiary is not required to place any notice or
     restriction relating to Hazardous Substances at any property
     included as part of the Contributed Assets owned by it or
     its Affiliates in any deed to such property; and

          (vii)  there are no Environmental Permits of such
     Contributing Subsidiary that are nontransferable or require
     consent, notification or other action to remain in full
     force and effect following the Closing Date in which all
     reasonable efforts will not have been made as soon as
     practicable after the date of this Agreement to provide
     notification to the appropriate government regulatory
     authority or to provide, without limitation, any requested
     applications, documents or correspondence to such regulatory
     authority.

          (b)    With respect to the Contributed Business of such
Contributing Subsidiary or its Affiliates, there has been no
Environmental Investigation or Audit of which such Contributing
Subsidiary has knowledge in relation to any property included as
part of the Contributed Assets of such Contributing Subsidiary or
its Affiliates which has not been delivered to the other parties
prior to the date of this Agreement.

          3.21.  Warranties.  Except as set forth in
Schedule 3.21, no material warranty or similar claims are
currently pending against such Contributing Subsidiary in
connection with its Contributed Business. 

          3.22.  Customers and Suppliers.  Except as set forth on
Schedule 3.22, such Contributing Subsidiary is not engaged in any
material disputes with any customers or suppliers, and to its
knowledge, no customer or supplier representing revenues or
expenses in excess of $250,000 per year to such Contributing
Subsidiary has indicated that it intends to terminate, not renew
any agreement which provides for automatic renewal or adversely
modify its arrangements with such Contributing Subsidiary or its
Contributed Business.

          3.23.  Books and Records.  The Books and Records of
such Contributing Subsidiary with respect to its Contributed
Business (true and complete copies of which have been made
available to the other Contributing Subsidiary) are accurate and
complete in all material respects.

          3.24.  Taxes.  Except as set forth in Schedule 3.24 or
reflected or accrued for in the Third Quarter Balance Sheet of
either Contributing Subsidiary or accrued by either Contributing
Subsidiary in the ordinary course of business after September 30,
1995, such Contributing Subsidiary and its Affiliates have timely
paid, or made provisions for the payment of, all Taxes (including
all interest and penalties thereon) which have accrued during the
Pre-Contribution Tax Period.

          3.25.  No Other Agreement.  Except for sales or other
dispositions of assets in the ordinary course of business and
except as set forth in this Agreement or in Schedule 3.25,
neither Contributing Subsidiary has any contract, agreement,
arrangement or understanding with respect to the sale or other
disposition of any assets (including the Contributed Assets) of
such Contributing Subsidiary or its Affiliates.

          3.26.  Derivatives.  Schedule 3.26 sets forth a
complete and correct list of all Derivative Financial Instruments
(including the face, contract or notional amount of and any open
position relating to such Derivative Financial Instruments and a
brief summary of the nature and terms thereof) as of December 31,
1995 to which such Contributing Subsidiary or any of its
Subsidiaries is a party or by which such Contributing Subsidiary
or any of its Subsidiaries is bound or any of their respective
Contributed Assets are subject or bound (including without
limitation funds of such Contributing Subsidiary or any of its
Subsidiaries invested by any other Person).  For purposes of this
Agreement, "Derivative Financial Instrument" means any futures,
forward, swap, option or swaption contract, or any other
financial instrument with similar characteristics and/or
generally characterized by the financial community as a
"derivative" security.  The definition of Derivative Financial
Instrument shall not include options or rights of first refusal
that relate to any Affiliate or any Material Equity Investment
Entity of such Contributing Subsidiary included in any agreement
to which any such Contributing Subsidiary is a party or by which
such Contributing Subsidiary is bound.

          3.27.  Material Equity Investment Entities.  (a)
Schedule 3.27 sets forth a complete and correct list of all
Material Equity Investment Entities (as defined below) of such
Contributing Subsidiary, which list sets forth the amount of
capital stock of or other equity interests in such Material
Equity Investment Entities owned by the Contributing Subsidiary,
directly or indirectly.  In addition, each Contributing
Subsidiary has furnished or made available to the other parties
copies of each such Material Equity Investment Entity's
certificate of incorporation and by-laws or equivalent
organizational documents.  "Material Equity Investment Entity" or
"Material Equity Investment Entities" means any corporation,
partnership, limited liability company, association, trust, joint
venture or other entity or organization of which such
Contributing Subsidiary (either alone or through or together with
any other subsidiary), owns, directly or indirectly, more than
10% of the stock or other equity interests the holder of which is
generally entitled to vote for the election of the board of
directors or other governing body of such corporation,
partnership, limited liability company, association, trust, joint
venture or other entity or organization.

     (b)  Except, in the case of Radian, for Contracts or
instruments with respect to (i) Amoco Environmental Services
Company, Corporacion Radian, S.A. De C.V., Tecnologias Y
Servicios Ambientales Tesam S.A., ATOS S.A.R.L., Environment,
Transport and Planning, S.L., R.S.K. Environmental Limited,
Radian D-Tech Inc., or Cera Dynamics Limited or (ii) Subsidiaries
wholly owned by Radian (whether beneficially or of record),
neither Contributing Subsidiary nor, to the knowledge of such
Contributing Subsidiary, any of its Material Equity Investment
Entities has entered into any Contract or instrument which would
prohibit or impede the transfer of any of the capital stock and
other securities or other ownership interests of the Material
Equity Investment Entities included in the Contributed Assets of
such Contributing Subsidiary.

     (c)  Except, in the case of Radian, for (i) Contracts or
instruments with respect to ATOS S.A.R.L., Environment, Transport
and Planning, S.L., and R.S.K. Environmental Limited, (ii) the
Asset Transfer Agreement dated March 15, 1994 by and among
Schlumberger Technology Corporation, Schlumberger Holdings
Limited, Radian and Radian Limited, (iii) the Asset Transfer
Agreement dated December 21, 1992 between Automated Compliance
Systems, Inc. and Radian, and (iv) the following Contracts: 
(a) Basic Order Agreement effective January 1, 1994 with Archer
Daniels Midland (Radian Project No. 635046); (b) Technical
Support for Regulatory Development for the Metal Products &
Machinery Manufacturing Industry, Phase I effective October 1,
1994 with the Environmental Protection Agency ("EPA") (Radian
Project No. 630046); (c) Technical Support for Regulatory
Development for the Metal Products & Machinery Manufacturing
Industry Phase 2 effective June 5, 1995 with the EPA (Radian
Project No. 630128); (d) Technical Support for Regulatory
Development for the Pulp & Paper Industry effective June 13, 1995
with the EPA (Radian Project No. 630134); (e) Technical Support
for Regulatory Development for the Pesticide Industry effective
May 31, 1995 with the EPA (Radian Project No. 630131);
(f) Technical Support for Regulatory Development for the
Pharmaceutical Industry effective May 23, 1995 with the EPA
(Radian Project No. 630127); (g) Technical Support for Regulatory
Development for the Industrial Laundry Industry effective
June 22, 1995 with the EPA (Radian Project No. 630135);
(h) Technical Support for Regulatory Development for the
Transportation Equipment Cleaning Industry effective June 19,
1995 with the EPA (Radian Project No. 630136); and (i) Technical
Support for RCRA Hazardous Waste Control Programs effective
December 1, 1992 with the EPA (Radian Project No. 285017),
neither Contributing Subsidiary nor, to the knowledge of such
Contributing Subsidiary, any of its Material Equity Investment
Entities has entered into any Contract or instrument which would
restrict the business activity of Newco, TDCC, HSB or any of
their Affiliates or contains any form of non-competition clause
(an "Anti-Competitive Contract").

          3.28.  Employment Plans and Benefit Arrangements. 
Schedule 3.28 sets forth each Employee Plan and each Benefit
Arrangement that is maintained by, administered by or contributed
to by each Contributing Subsidiary for the benefit of employees
in the Contributed Business.  With respect to each such Employee
Plan and Benefit Arrangement (except as disclosed on
Schedule 3.28):

          (i)    DEI shall provide or make available to Radian
true and correct copies of each Employee Plan and Benefit
Arrangement listed on Schedule 3.28 with respect to which DEI has
any liability (the "DEI Plans").  Radian shall provide or make
available to DEI true and correct copies of each Employee Plan
and Benefit Arrangement listed on Schedule 3.28 with respect to
which Radian has any liability (the "Radian Plans").  DEI has
supplied or made available to Radian, to the extent applicable, a
true and correct copy of the most recent annual report, actuarial
report, accountant's opinion of the plan's financial statements,
summary plan description and Internal Revenue Service ("IRS")
determination letter with respect to each DEI Plan.  Radian has
supplied or made available to DEI, to the extent applicable, a
true and correct copy of the most recent annual report, actuarial
report, accountant's opinion of the plan's financial statements,
summary plan description and IRS determination letter with
respect to each Radian Plan.
  
          (ii)   Each DEI Plan and each Radian Plan complies and
has been administered in form and in operation in all material
respects with all applicable requirements of law, and no event
has occurred which will or could cause any such plan to fail to
comply with such requirements and no notice has been issued by
any governmental authority questioning or challenging such
compliance. 

          (iii)  Each DEI Plan and each Radian Plan which is an
employee pension benefit plan (as defined in section 3(2) of
ERISA) and which is intended to be tax-qualified under
section 401(a) of the Code has received a favorable determination
letter from the IRS and there have been no amendments to such
plans which are not the subject of a favorable determination
letter issued with respect thereto by the IRS and no event has
occurred which will or could give rise to disqualification of any
such plan.

          (iv)   Except for The Hartford Steam Boiler Inspection
and Insurance Company Leveraged Employee Stock Ownership Plan
(the "HSB ESOP"), none of the assets of any DEI Plan or Radian
Plan is invested in employer securities or employer real
property.

          (v)    There have been no "prohibited transactions" (as
described in section 406 of ERISA or section 4975 of the Code)
with respect to any DEI Plan or any Radian Plan.

          (vi)   There are no actions, suits or claims (other
than routine claims for benefits) pending or threatened involving
any DEI Plan or any Radian Plan or the assets thereof.

          (vii)  None of the DEI Plans or the Radian Plans are
subject to Title IV of ERISA or are multiemployer plans (as
defined in section 3(37) of ERISA).

          (viii) Except as set forth on Schedule 3.28, neither
DEI nor Radian has any liability or contingent liability for
providing, under any DEI Plan or Radian Plan or otherwise, any
post-retirement medical or life insurance benefits, other than
statutory liability for providing group health plan continuation
coverage under Part 6 of Title I of ERISA and section 4980B of
the Code. 


                           ARTICLE IV

         REPRESENTATIONS AND WARRANTIES OF TDCC AND HSB

          EXCEPT FOR THE REPRESENTATIONS AND WARRANTIES
SPECIFICALLY PROVIDED FOR IN THIS AGREEMENT, ALL OF THE
CONTRIBUTED ASSETS ARE CONTRIBUTED TO NEWCO "AS IS" AND "WHERE
IS" WITHOUT IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR
INTENDED USE OR PARTICULAR PURPOSE OR OTHERWISE.

          Each of TDCC and HSB hereby represents and warrants to
each other party and Newco as of the date of this Agreement that:

          4.01.  Existence.  Such party is duly organized,
validly existing and in good standing under the laws of its
jurisdiction of organization.

          4.02.  Authorization.  The execution, delivery and
performance by such party of this Agreement, the other
Transaction Documents to which it is a party and all other
documents, instruments and certificates executed and delivered by
such party in connection with this Agreement or with such other
documents, and the consummation by such party of the transactions
contemplated by this Agreement and by such other documents are
within such party's powers and have been duly authorized by all
necessary action on the part of such party.  This Agreement and
each of the other Transaction Documents have been duly and
validly executed and delivered by such party and each constitutes
a valid and binding agreement of such party, enforceable in
accordance with its terms, except as (i) the enforceability of
this Agreement may be limited by applicable bankruptcy,
insolvency, fraudulent transfer, moratorium or similar laws from
time to time in effect affecting creditors' rights generally and
(ii) the availability of equitable remedies may be limited by
equitable principles of general applicability.

          4.03.  Governmental Authorization.  Except as set forth
on Schedule 4.03, the execution, delivery and performance by such
party of this Agreement, the other Transaction Documents to which
it is a party and all other documents, instruments and
certificates executed and delivered by such party in connection
with this Agreement or with such other documents, require no
action by or in respect of, or filing with, any governmental
body, agency, official or authority other than any filings
necessary to transfer or obtain any Permit.

          4.04.  Non-Contravention.  The execution, delivery and
performance by such party of this Agreement, the other
Transaction Documents to which it is a party and all other
documents, instruments and certificates executed and delivered by
such party in connection with this Agreement or with such other
documents do not and will not (i) contravene or conflict with the
certificate of incorporation or bylaws of such party; (ii)
assuming compliance with the matters referred to in Section 4.03,
contravene or conflict with or constitute a violation of any
provision of any law, regulation, judgment, injunction, order or
decree binding upon or applicable to such party or its
Contributed Business; (iii) conflict with, or result in the
breach or termination of any provision of or constitute a default
(with or without the giving of notice or the lapse of time or
both) under or give rise to any right of termination,
cancellation or acceleration of any right or obligation or to a
loss of any benefit to which such party is entitled under any
provision of any material agreement, contract, license or other
instrument binding upon such party or any of its properties, or
allow the acceleration of the performance of any obligation of
such party under any note, bond, mortgage, indenture, lease,
license, franchise, permit, agreement, contract or other
instrument or obligation binding upon such party or any of its
properties for which a written waiver has not been obtained as of
the date of this Agreement; (iv) result in the creation or
imposition of any Lien on any asset of such party, except in the
case of clauses (ii), (iii) and (iv), for any such
contraventions, conflicts, violations, breaches, terminations,
defaults, cancellations, losses, accelerations and Liens which,
individually or in the aggregate, would not reasonably be
expected to prevent such party from performing its obligations
under this Agreement.

          4.05.  Required Approval.  The execution, delivery and
performance by such party of this Agreement, the Transaction
Documents to which it is a party and all other documents,
instruments and certificates executed and delivered by such party
in connection with this Agreement or with such other documents,
do not require the approval of such party's stockholders.

          4.06.  Finders' Fees.  Except, in the case of TDCC, for
Donaldson, Lufkin & Jenrette Securities Corporation, whose fees
will be paid by TDCC, and, in the case of HSB, Morgan
Stanley & Co. Incorporated, whose fees will be paid by HSB, there
is no investment banker, broker, finder or other intermediary
which has been retained by, or is authorized to act on behalf of,
such party who might be entitled to any fee or commission from
the other parties or any of their respective Affiliates or Newco
upon consummation of the transactions contemplated by this
Agreement.


                            ARTICLE V

                            COVENANTS

          5.01.  Conduct of the Business.  (a)  From the date of
this Agreement until the earlier of the Closing Date and the
termination of this Agreement (except as otherwise provided in
this Agreement or as TDCC or HSB, as the case may be, may consent
in writing), TDCC and DEI shall cause the Contributed Business of
DEI, and HSB and Radian shall cause the Contributed Business of
Radian, to be conducted in the ordinary course of business
consistent with past practice and shall use their commercially
reasonable efforts to:

          (i)    preserve intact the business organizations and
     relationships with third parties relating to such
     Contributed Business;

          (ii)   keep available the services of the present
     employees connected with such Contributed Business;

          (iii)  continue making marketing, advertising,
     promotional, and other similar expenditures relating to such
     Contributed Business in the ordinary course of business
     consistent with past practice;

          (iv)   duly comply in all material respects with all
     laws, regulations or ordinances, including without
     limitation all Environmental Laws, applicable to such
     Contributed Business;

          (v)    maintain all of its Books and Records relating
     to such Contributed Business in the ordinary course of
     business consistent with past practice;

          (vi)   continue the maintenance and repair of the
     Contributed Assets relating to such Contributed Business
     (including the making of scheduled capital expenditures) in
     the ordinary course of business consistent with past
     practice;

          (vii)  maintain in effect insurance with respect to the
     Contributed Assets related to such Contributed Business in
     the ordinary course of business and against risks, with
     carriers and in amounts (including deductibles) consistent
     with past practice;

          (viii) maintain inventory and equipment related to such
     Contributed Business at levels consistent with past
     practice; and

          (ix)   comply in all material respects with all
     material contracts relating to such Contributed Business.

          (b)    Without limiting the generality of the
foregoing, without the prior written consent of TDCC, in the case
of Radian, or HSB, in the case of DEI, from the date of this
Agreement until the Closing Date or the earlier termination of
this Agreement, no Contributing Subsidiary will:

          (i)    merge or consolidate with any other Person;

          (ii)   acquire from any other Person, other than in the
     ordinary course of business, assets relating to its
     Contributed Business having a fair market value in excess of
     an aggregate of $1,000,000;

          (iii)  sell, lease, license, pledge or otherwise
     dispose of any Contributed Assets except (i) pursuant to
     existing contracts or commitments and (ii) in the ordinary
     course of business consistent with past practice; or

          (iv)   defer the payment of any amounts, or accelerate
     the collection of any receivables, except in the ordinary
     course of business consistent with past practice;

          (v)    create or suffer to exist any new Lien or
     encumbrance on any of its Contributed Assets, other than
     Permitted Liens;

          (vi)   enter into any material contract or agreement
     (or, except for technical amendments to substitute the name
     of Newco for the name of such party, any amendment,
     modification or waiver of any existing contract or
     agreement), that would be an Assumed Liability except in the
     ordinary course of business consistent with past practice;

          (vii)  except in the ordinary course of business
     consistent with past practice, accept, receive or allow any
     customer to make any prepayment related to its Contributed
     Business or its Assets;

          (viii) except in the ordinary course of business
     consistent with past practice, waive or release any right of
     value relating to its Contributed Assets or its Contributed
     Business;

          (ix)   declare, set aside or pay any dividend or other
     distribution (whether in cash or stock, or property or any
     combination thereof) in respect of its capital stock;

          (x)    purchase any Derivative Financial Instrument; or

          (xi)   agree or commit to do any of the foregoing.

          5.02.  Access to Information.  From the date of this
Agreement until the Closing Date or the earlier termination of
this Agreement, and subject to each party's security and safety
practices, each party will (a) give each other party and its
counsel, financial advisors, auditors and other authorized
representatives such access to the offices, properties, books and
records of such party relating to the Contributed Business of
such Contributing Subsidiary, upon reasonable notice and during
normal business hours, as such other party may reasonably
request, (b) furnish to the counsel, financial advisors, auditors
and other authorized representatives of the other party such
financial and operating data and other information relating to
its Contributed Business as such Persons may reasonably request
and (c) instruct the employees, counsel and financial advisors of
such Contributing Subsidiary to cooperate with the other party in
its investigation of its Contributed Business; provided that no
investigation pursuant to this Section shall affect any represen-
tation or warranty given by such party under this Agreement; and
provided further that any investigation pursuant to this Section
shall be conducted in such manner as not to interfere unreason-
ably with the conduct of the Contributed Business of such
Contributing Subsidiary.  Notwithstanding the foregoing, no party
shall have access to personnel records of the other party
relating to individual performance or evaluation records, medical
histories or other information which, in such party's good faith
opinion, is sensitive or the disclosure of which could subject
such party to risk of liability.  All information, documents and
other materials provided pursuant to this Section shall be held
and dealt with by the Persons receiving the same in accordance
with the Confidentiality Agreement.

          5.03.  Notices of Certain Events.  From the date of
this Agreement until the Closing Date (or the earlier termination
of this Agreement) each of TDCC or HSB shall promptly notify the
other party of:

          (i)    any notice or other communication from any
     Person alleging that the consent of such Person is or may be
     required in connection with the transactions contemplated by
     this Agreement or any other Transaction Document;

          (ii)   any notice or other communication from any
     governmental or regulatory agency or authority in connection
     with the transactions contemplated by this Agreement or any
     other Transaction Document; and

          (iii)  any actions, suits, claims, investigations or
     proceedings commenced or, to the best of its knowledge
     threatened against, relating to or involving or otherwise
     affecting such Contributing Subsidiary or its Contributed
     Business that, if pending on the date of this Agreement,
     would have been required to have been disclosed pursuant to
     Section 3.11 or Section 3.20(a) or that relate to the
     consummation of the transactions contemplated by this
     Agreement or any other Transaction Document.

          5.04.  Reasonable Efforts; Further Assurances.  Subject
to the terms and conditions of this Agreement, each party will
use all commercially reasonable efforts to take, or cause to be
taken, all actions and to do, or cause to be done, all things
necessary or desirable under applicable laws and regulations and
any applicable contractual obligations to consummate the
transactions contemplated by this Agreement and the other
Transaction Documents.  Each party agrees to execute and deliver
such other documents, certificates, agreements and other writings
and to take such other actions as may be necessary or desirable
in order to consummate or implement expeditiously the
transactions contemplated by this Agreement and the other
Transaction Documents and to vest in Newco good title to the
Contributed Assets of such party (including without limitation in
accordance with Section 2.07, the Restricted Assets), subject
only to Permitted Liens or Liens set forth on Schedule 2.02(a).

          5.05.  Certain Filings.  From the date of this
Agreement until the Closing Date, or such later date as is
reasonably required to obtain all material Permits and to
transfer all Restricted Assets necessary for the operation of the
Contributed Business (or the earlier termination of this
Agreement), the parties shall cooperate with one another (a) in
determining whether any action by or in respect of, or filing
with, any governmental body, agency, official or authority is
required, or any actions, consents, approvals or waivers are
required to be obtained from parties to any material contracts,
in connection with the consummation of the transactions
contemplated by this Agreement or any Transaction Document and
(b) in taking such actions or making any such filings, furnishing
information required in connection therewith and seeking timely
to obtain any such actions, consents, approvals or waivers.

          5.06.  Public Announcements.  From the date of this
Agreement until the Closing Date (or the earlier termination of
this Agreement), except as may be required by applicable law or
any listing agreement with any national securities exchange, any
press release or any public statement with respect to this
Agreement, any Transaction Document or the transactions
contemplated by this Agreement or by such other documents will
require the prior written consent of TDCC and HSB.

          5.07.  Stockholder Approval.  Each of TDCC and HSB, as
sole stockholders of DEI and Radian, respectively, agrees to
execute and deliver its written consent as may be required to
approve the transactions contemplated by this Agreement, to
authorize the execution and delivery by DEI or Radian, as the
case may be, of this Agreement and the other Transaction
Documents and the performance by DEI or Radian, as the case may
be, of its obligations under this Agreement and under the other
Transaction Documents.

          5.08.  WARN.  Each party agrees to comply with all
applicable provisions of the Worker Adjustment, Retraining and
Notification Act and any similar state law applicable to the
transactions contemplated by this Agreement.  

          5.09.  Intentionally Omitted.

          5.10.  Impairment of Assets.  In the event that after
the date of this Agreement, but prior to the Closing Date, a
fire, explosion, flood, confiscation, earthquake or other similar
or dissimilar event impairs any of the Contributed Assets (each
such Contributed Asset is an "Impaired Asset") to be contributed
to Newco, the parties agree to negotiate in good faith to ensure
that, to the extent commercially reasonable, assets (such as
insurance proceeds) which, when taken together with any remaining
value of the Impaired Asset, have a value equal to the value of
the Contributed Asset without the impairment, shall be trans-
ferred to Newco.  This provision shall in no way limit either
party's rights under Section 7.01.

          5.11.  Covenant of Parent.  (a) Each of TDCC and HSB,
as the case may be, will cause its respective Contributing
Subsidiary to perform and will be responsible for and guarantee
the timely performance of all of the respective Contributing
Subsidiary's obligations under this Agreement and the LLC
Agreement.  

          (b)    If a dissolution of Newco is caused by the
Bankruptcy of DEI pursuant to Section 9.1 of the LLC Agreement,
Radian shall have the right to require TDCC to purchase all, but
not less than all, of Radian's Company Interest at the price and
upon the terms set forth in Section 8.3 of the LLC Agreement;
provided, however, that such price shall be discounted at a rate
of 4% per year or portion thereof if such purchase shall occur
prior to December 31, 1997.

          (c)    If DEI shall fail to purchase Radian's Company
Interest at the price and upon the terms and subject to the
conditions set forth in Section 8.3 of the LLC Agreement then,
upon notice of such failure, TDCC shall, within two (2) business
days of such notice, purchase Radian's Company Interest at the
price and upon the terms set forth in Section 8.3 of the LLC
Agreement.

          5.12.  Covenants Not to Compete.  Subject to the
provisions of this Section 5.12, each of TDCC and HSB agrees
that, from the Closing until one year after it has ceased to have
a direct or indirect ownership interest in Newco, neither it nor
its Affiliates (other than DEI with respect to its ownership
interest in Newco or any Restricted Asset in the case of TDCC and
Radian with respect to its ownership interest in Newco or any
Restricted Asset in the case of HSB) will engage in businesses
anywhere in the world that are in direct competition with the
Newco Protected Business, it being understood that these
covenants not to compete shall not at any time prevent each of
TDCC and HSB, and each of their Affiliates, from engaging in (i)
Excluded Businesses, even if such Excluded Businesses compete
with the Newco Protected Business, (ii) in any other businesses
(including without limitation businesses that neither TDCC and
its Affiliates nor HSB and its Affiliates were engaged in as of
the date of this Agreement) that are not directly in competition
with the Newco Protected Business or (iii) maintaining passive
investments of less than 5% of the aggregate equity interests of
any Person that is in direct competition with the Newco Protected
Business.  Without limiting the generality of the foregoing,
nothing in this Agreement shall at any time prevent (w) TDCC or
any of its Affiliates from providing systems or services to any
of their Affiliates or to TDCC (including without limitation the
transfer to Buna Sow Leuna Olefinerbund GmbH in Germany ("BSL")
of environmental technology and environmental services as a
result of TDCC's acquisition of a controlling interest in BSL),
(x) HSB or any of its Affiliates from providing systems or
services to any of their Affiliates or to HSB, (y) each of TDCC
and its Affiliates and each of HSB and its Affiliates from
providing services or systems in conjunction with the sale of a
product, or (z) each of TDCC and its Affiliates and each of HSB
and its Affiliates from providing services or systems in
connection with a contract manufacturing relationship or from
entering into a technology license for or relating to the
manufacture, distribution and/or sale of chemical products.

          5.13.  Liens on Interests in Newco.  Each of TDCC and
HSB agrees that it will not create or permit to exist, directly
or indirectly, any Lien on its interest in Newco or any portion
thereof (except (i) Liens for Taxes being contested in good faith
and by appropriate proceedings, (ii) Liens arising in the
ordinary course of business for sums not due or sums being
contested in good faith and by appropriate proceedings and (iii)
Liens pursuant to bona fide credit arrangements provided that a
Person providing credit pursuant to such arrangements shall
acknowledge that, if such Person acquires ownership of any such
interest, such interest shall nevertheless be subject to all the
terms of this Agreement and the LLC Agreement).  Any attempt by
either party to create or permit to exist, directly or
indirectly, any Lien (other than the Liens described in the
parenthetical in the immediately preceding sentence) on its
interest in Newco or any portion thereof shall be null, void ab
initio and of no force and effect. 

          5.14  Covenants Not to File Involuntary Bankruptcy. 
Each of TDCC and HSB agrees, to the fullest extent permitted by
law, not to file, or cause any other Person or entity (including
without limitation, any of such Person's shareholders,
subsidiaries or Affiliates) to file, an involuntary bankruptcy
petition against Newco under any state or federal insolvency law,
including without limitation the Federal Bankruptcy Code, or any
amended or successor version thereof.

          5.15  Intentionally Omitted.

          5.16  Intentionally Omitted. 

          5.17  Transfers of Capital Stock of Contributing
Subsidiary.  (a) Each of TDCC and HSB agrees that it will not
sell any of the capital stock of its Contributing Subsidiary
unless such transfer is (i) pursuant to a written agreement
pursuant to which the transferee agrees to be bound by all of the
terms of this Agreement and the other Transaction Documents as if
it were originally a party to those Agreements and to such other
documents and (ii) in compliance with Section 5.17(b).  In
addition to the requirements set forth in the first sentence of
this Section 5.17, HSB agrees that it shall not make such
transfer to any company engaged in a significant way in the
manufacture or sale of primary chemical products without the
consent of TDCC (which consent shall not be unreasonably
withheld).  

     (b)  Neither TDCC nor HSB will, without the consent of the
other, sell the capital stock of its respective Contributing
Subsidiary prior to the third anniversary of the Closing Date.   
If, subsequent to the third anniversary of the Closing Date, a
third party with sufficient financial resources (an "Acquiror")
which is not an Affiliate of either TDCC or HSB makes a written
proposal to purchase, at a defined price and pursuant to defined
terms and conditions, from either TDCC or HSB all of the capital
stock of its Contributing Subsidiary, in a bona fide, arm's-
length transaction (a "Acquiror Proposal"), and if such party
desires to enter into negotiations with respect to such Acquiror
Proposal, such party (the "Offeror") shall give written notice to
the other party (the "Offeree") of a desire to so dispose of the
capital stock of the Offeror's Contributing Subsidiary (with
respect to such Offeror, the "Shares"), which proposed
disposition is subject to the following provisions:

          (i)    The Offeror shall first offer to the Offeree the
     right to buy the Offeror's Shares from the Offeror at the
     same price and upon the same terms and conditions as (or, if
     any such terms and conditions cannot be duplicated, on terms
     and conditions financially equivalent to) those the Offeror
     has been offered by, and is willing to accept from, the
     Acquiror;

          (ii)   The offer by the Offeror to the Offeree shall
     (x) provide written disclosure of all of the details
     pertaining to any such Acquiror Proposal, including the
     price, terms and conditions and the name and address of the
     Acquiror to whom the Offeror is prepared to sell the
     Offeror's Shares (such disclosure shall be deemed sufficient
     pursuant to this Section 5.17(b) if such disclosure includes
     all terms and conditions known to such Offeror), and (y)
     provide to the Offeree a written statement of the Acquiror
     which sets forth the agreement of the Acquiror, upon the
     closing of a purchase pursuant to this Section 5.17(b), to
     be bound by all of the terms of this Agreement and the other
     Transaction Documents as if it were originally a party to
     this Agreement and other Transaction Documents.  If the
     Offeree elects to exercise its right to purchase the
     Offeror's Shares, it shall give written notice thereof to
     the Offeror within thirty (30) days after receipt of such
     offer from the Offeror (with all required information) and
     the purchase of such Shares shall be closed at the offices
     of Mayer, Brown & Platt, 190 South LaSalle Street, Chicago,
     Illinois 60603 (or at any other mutually agreeable place)
     within ninety (90) days after the Offeree's notice of such
     election to the Offeror and any necessary governmental
     reviews, consents or approvals have occurred (or at any
     other mutually agreeable time);

          (iii)  If, within thirty (30) days after giving the
     notice to the Offeree required in this Section 5.17(b), the
     Offeree shall not have elected to exercise its right to
     purchase the Offeror's Shares, then negotiations may proceed
     as if the Offeree shall have approved the sale to the
     Acquiror;

          (iv)   If the Offeree shall approve the sale to the
     Acquiror, then the sale of the Shares of the Offeror may be
     consummated; provided, however, that such sale must be
     closed within one-hundred twenty (120) days after the
     expiration of the thirty (30) day period referred to in
     subsection (iii) above, at a price and upon terms and
     conditions not more favorable, in any material respect, to
     the Acquiror than those which were first disclosed to the
     Offeree;

          (v)    At or prior to the consummation of any such sale
     to the Acquiror, the Offeror shall furnish to the Offeree
     and to Newco (A) an agreement of the Acquiror agreeing to be
     bound by the terms of this Agreement and any other
     Transaction Documents to which the Offeror is a party and
     acknowledging that the Acquiror shall be bound by, and
     entitled to the benefits of, those documents, and (B) an
     affidavit of the Offeror setting forth: the name and address
     of the Acquiror to whom any Shares were sold; the price and
     terms and conditions upon which such Shares were sold; and a
     statement that the Acquiror is not an Affiliate of the
     Offeror; and

          (vi)   Notwithstanding the foregoing, no party shall be
     permitted to present an Acquiror Proposal regarding the
     exercise of its right to dispose of the capital stock of its
     Contributing Subsidiary pursuant to this Section 5.17(b) in
     excess of six times during the previous 60 month period.  

          5.18   Technology Access.  TDCC will provide to Newco,
upon Newco's request, access to, and licenses under, any
technology that (a) is either owned by or licensed to TDCC, (b)
TDCC is authorized to either sublicense or permit the use of by
Newco, and (c) that is reasonably useable in the Newco Services
Business, including without limitation the technology described
in Exhibit A; provided, however, that (i) TDCC shall not be
required to provide access to (x) technology predominantly
applicable to the production or manufacture of chemical products
or (y) MOD series process control technology, including without
limitation software and hardware and (ii) TDCC shall not be
required to incur any costs to develop or obtain technology for
Newco's use.  The provision of access to, and licenses under,
technology to Newco pursuant to this Section 5.18 shall be
without cost to Newco, except that Newco shall reimburse TDCC (i)
for any payments TDCC must make to a third party in order to
provide such access and/or license and (ii) for any Taxes borne
by TDCC as a result of the provision of such access and/or
license.  Such licenses and, where permitted, such sublicenses
shall be of sufficient scope so as to permit Newco to conduct the
Newco Services Business and shall permit Newco to grant site
licenses to use TDCC technology that is relevant to the Newco
Services Business.  If site licenses are not appropriate for a
certain portion of TDCC technology, TDCC and Newco will attempt
to develop an alternate licensing procedure.  During the term of
the LLC Agreement, there will be an agreement in place which
provides the mechanism for Newco's access to the technology
granted above.

          5.19   Certain Radian Property.  If TDCC or DEI
determines that, pursuant to an environmental assessment to be
completed within thirty (30) days from the Closing Date, the
property owned by Radian located in (i) El Dorado County
California and (ii) City of Durham, Durham County, North
Carolina, each as more specifically described in Radian's
Schedule 3.08(a), may subject Newco to any Environmental
Liability or that such property is in breach of the
representations and warranties set forth in Section 3.20, then,
upon notice to Radian and HSB and without any further action by
either TDCC or DEI, such property shall be treated for all
purposes of this Agreement as if it had been an Excluded Asset as
of the Closing Date. 


                           ARTICLE VI

                 EMPLOYEES AND EMPLOYEE BENEFITS

          6.01.  Leased Employees.  Immediately following the
Closing Date and until such time as provided under and in
accordance with the terms of the Employee Seconding Agreements
(the "Employment Transfer Date"), the Leased Employees will
continue to be employed by the Contributing Subsidiaries or TDCC,
as applicable, and will be leased from the Contributing
Subsidiaries or TDCC, as applicable, to Newco.  For the period
following the Closing Date until the Employment Transfer Date,
the DEI Leased Employees shall continue to be treated for
purposes of all of DEI Plans as employees of DEI and the Radian
Leased Employees shall continue to be treated for purposes of the
Radian Plans as employees of Radian.  Nothing in this Article VI
shall require TDCC or any Contributing Subsidiary to continue to
employ any person.

          6.02.  Employment by Newco.  Effective as of the
Employment Transfer Date, the DEI Leased Employees and Radian
Leased Employees shall be transferred from employment with the
Contributing Subsidiaries to employment with Newco and Newco
agrees to employ all such Leased Employees as employees-at-will,
except to the extent provided in any employment agreement. 
Except as otherwise specifically provided in this Article VI, for
periods after the Employment Transfer Date, the Leased Employees
shall not be eligible to participate in employee benefit plans
and arrangements maintained by the Contributing Subsidiaries. 
Nothing in this Article VI shall require Newco to continue to
employ any employee after the Employment Transfer Date.

          6.03.  Newco Plans.  Newco and the Contributing
Subsidiaries shall take the following actions:

          (i)    On or prior to the Closing Date, each
     Contributing Subsidiary shall make all contributions to, in
     the case of DEI, the DEI Plans, and, in the case of Radian,
     the Radian Plans which are required under the terms thereof
     or by applicable law for periods prior to the Closing Date
     or which relate to periods prior to the Closing Date.

          (ii)   Effective as of the Employment Transfer Date,
     Newco shall establish and adopt such employee benefit plans,
     arrangements, policies and programs (the "Newco Plans") as
     DEI and Radian shall mutually agree.  The Newco Plans may
     be, but shall not be required to be, substantially similar
     to the DEI Plans, the Radian Plans or a combination thereof.
 
          (iii)  All Leased Employees who become employed by
     Newco on the Employment Transfer Date, to the extent
     applicable, shall be given credit for all purposes under
     each of the Newco Plans for their service with DEI or
     Radian, as applicable, including but not limited to the
     following purposes: eligibility for participation, vesting,
     satisfying any waiting periods, evidence of insurability
     requirements, or the application of any pre-existing
     condition limitations and determining benefits based on
     length of service (such as vacation and severance), and to
     the extent applicable, shall be given credit under each of
     the Newco Plans which is an employee welfare benefit plan
     (as that term is defined in section 3(1) of ERISA) for
     amounts paid under a corresponding DEI Plan or Radian Plan,
     as applicable, during the same period for purposes of
     applying deductibles, copayments and out-of-pocket maximums
     as though such amounts had been paid in accordance with the
     terms and conditions of Newco Plans.

          (iv)   On or as soon as practicable after the
     Employment Transfer Date, the Dow Environmental Inc.
     Retirement Savings Plan (the "DEI 401(k) Plan") and the
     Radian Corporation 401(k) Thrift Plan shall be merged with
     and into a new defined contribution plan established by
     Newco (the "Newco 401(k) Plan").  Prior to such merger, DEI
     and Radian, as applicable, shall provide Newco with copies
     of a favorable determination letter issued by the IRS that
     the DEI 401(k) Plan and the Radian 401(k) Plan, as
     applicable, meet the requirements of section 401(a) of the
     Code and Newco shall provide DEI and Radian with a copy of a
     favorable determination letter issued by the IRS that the
     Newco 401(k) Plan meets the requirements of section 401(a)
     of the Code.  The merger of the DEI 401(k) Plan and the
     Radian 401(k) Plan with and into the Newco 401(k) Plan shall
     comply in all respects with sections 411(d)(6) and 414(l) of
     the Code.  Newco, Radian and DEI shall use their reasonable
     best efforts to accomplish the mergers described above,
     including adoption of plan amendments (including, if
     necessary, amendments to the Newco 401(k) Plan to provide
     for continuation of outstanding loans that will be
     transferred to the Newco 401(k) Plan in connection with the
     merger of the DEI 401(k) Plan with and into the Newco 401(k)
     Plan) and completion of any required filings with any
     governmental agency.

          (v)    In the event any TDCC Leased Employee becomes an
     employee of Newco after the Closing Date, the account
     balance of such TDCC Leased Employee (including, to the
     extent applicable, any promissory note evidencing a loan to
     any such TDCC Leased Employee) shall be transferred to the
     Newco 401(k) Plan from The Dow Chemical Company Salaried
     Employees' Savings Plan (the "TDCC 401(k) Plan").  Such
     transfer shall comply in all respects with section 411(d)(6)
     and 414(l) of the Code.  Prior to such transfer, TDCC shall
     provide Newco with a copy of a favorable determination
     letter issued by the IRS that the TDCC 401(k) Plan meets the
     requirements of section 401(a) of the Code and Newco shall
     provide TDCC with a copy of a favorable determination letter
     issued by the IRS that the Newco 401(k) Plan meets the
     requirements of section 401(a) of the Code.  Newco and TDCC
     shall use their reasonable best efforts to accomplish the
     transfer described above, including adoption of plan
     amendments and completion of any required filings with any
     governmental agency.

          (vi)   On or as soon as practicable after the
     Employment Transfer Date, the shares of HSB common stock
     ("HSB Stock") and any cash balance allocated under the HSB
     ESOP to the account of any Radian Leased Employee who
     becomes an employee of Newco on the Employment Transfer Date
     shall be transferred to the Newco 401(k) Plan from the HSB
     ESOP.  Such transfer shall comply in all respects with
     section 411(d)96) and 414(l) of the Code.  Prior to such
     transfer, HSB shall provide Newco with a copy of a favorable
     determination letter issued by the IRS that the HSB ESOP
     meets the requirements of section 401(a) of the Code and
     Newco shall provide HSB with a copy of a favorable
     determination letter issued by the IRS that the Newco 401(k)
     Plan meets the requirements of section 401(a) of the Code. 
     Newco and HSB shall use their reasonable best efforts to
     accomplish the transfer described above, including adoption
     of plan amendments and completion of any required filings
     with any governmental agency and including, in the case of
     Newco, the inclusion in the Newco 401(k) Plan of such
     restrictions on the ability of a participant to sell or
     dispose of HSB Stock credited to such participant's account
     as HSB may reasonably require.

     6.04.  Relocation.  DEI, Radian and Newco acknowledge that
certain Leased Employees who become employees of Newco may need
to relocate physically in order to perform their employment
responsibilities for Newco.  Newco agrees to develop as one of
the Newco Plans a policy to cover reasonable relocation costs of
such employees.


                           ARTICLE VII

                      CONDITIONS TO CLOSING

          7.01.  Conditions to the Closing.  The obligations of
TDCC and DEI, on the one hand, and HSB and Radian, on the other
hand, to consummate the Closing are subject to the satisfaction
or waiver, at or prior to the Closing, of the following
conditions:

          (a)    No provision of any applicable law or regulation
and no judgment, injunction, or other similar order or decree
shall prohibit the consummation of the Closing.

          (b)    (i)  The other parties shall have performed in
all material respects all of their obligations under this
Agreement required to be performed by them at or prior to the
Closing Date and (ii) the representations and warranties of the
other parties contained in this Agreement and in any certificate
or other writing delivered by the other parties pursuant to this
Agreement which are qualified as to materiality shall be true and
correct and the representations and warranties of the other
parties contained in this Agreement and in any certificate or
other writing delivered by the other parties pursuant to this
Agreement which are not so qualified shall be true and correct in
all material respects, in each case as of the date when made and
(except in the case of any representation and warranty made as of
specified date) as of the Closing Date, as if made at and as of
such date.

          (c)    Each of the Transaction Documents shall have
been duly executed by each of the parties to such agreements, and
shall be in full force and effect.

          (d)    Each Contributing Subsidiary and Newco shall
have provided or executed all certificates, notices or other
documents and taken all other actions reasonably required to
minimize the applicability of transfer taxes on the transfer of
Assets to Newco as contemplated by this Agreement.

          (e)    Each Contributing Subsidiary shall have been
provided and approved the preliminary business plan of Newco with
respect to the first year of operations of Newco after the
Closing Date. 


                          ARTICLE VIII

                    SURVIVAL; INDEMNIFICATION

          8.01.  Survival.  The representations and warranties of
the parties contained in this Agreement shall not be limited or
affected by any investigation undertaken by any party, and shall
survive the Closing until the second anniversary of the Closing
Date or (i) in the case of Sections 3.01 and 3.02, indefinitely,
or (ii) in the case of the representations and warranties
relating to Taxes, until expiration of the applicable statutory
period of limitations (giving effect to any waiver, mitigation or
extension thereof), if later, and shall thereafter terminate,
together with any associated right of indemnification pursuant to
Section 8.02.  Notwithstanding the preceding sentence, any
representation or warranty in respect of which indemnity may be
sought under Section 8.02, and the associated right of
indemnification under Section 8.02, shall survive the time at
which it would otherwise terminate pursuant to the preceding
sentence, with respect to any matter identified in a notice
(which notice shall identify the representation or warranty
claimed to have been breached or to have been inaccurate, and
shall state with reasonable particularity the nature of the
asserted breach or inaccuracy) given prior to such time to the
party against whom such indemnity may be sought.

          8.02.  Indemnification.  (a)  Each of TDCC and DEI, on
the one hand, and HSB and Radian, on the other hand, (each pair,
an "Indemnifying Party") hereby indemnifies each other (the
indemnified pair, an "Indemnified Party") and their Affiliates,
and their respective directors, officers, employees and agents
(collectively, the "Indemnified Parties") against and agrees to
hold each of them harmless from and to defend each of them from
and against any and all Loss incurred or suffered by them,
arising out of or resulting from:

          (i)    any breach of any representation or warranty in
     this Agreement by such Indemnifying Party; or

          (ii)   any failure by the Indemnifying Party or any of
     its Affiliates to perform any of its covenants or agreements
     contained in this Agreement (other than those in
     Sections 8.02(b) through (k), which are covered in those
     sections) or the other Transaction Documents; 

provided that such Indemnifying Party shall not be liable under
Section 8.02(a) unless the aggregate amount of Loss with respect
to all matters referred to in Section 8.02(a) exceeds $500,000
(provided, that if such loss does exceed $500,000, the
Indemnifying Party shall only be responsible for the amount of
such loss that exceeds $500,000).

          (b)    TDCC hereby agrees to indemnify HSB, Radian and
Newco against and to hold HSB, Radian and Newco harmless from any
breach, default or non-performance by TDCC or any of its
Affiliates relating to any or all of the Assumed Contracts
contributed by TDCC or any of its Affiliates where the act,
omission, event or cause of action giving rise to the same arose,
occurred or accrued prior to September 30, 1995.  HSB hereby
agrees to indemnify TDCC, DEI and Newco against and to hold TDCC,
DEI and Newco harmless from any breach, default or non-
performance by HSB or any of its Affiliates relating to any or
all of the Assumed Contracts contributed by HSB or any of its
Affiliates where the act, omission, event or cause of action
giving rise to the same arose, occurred or accrued prior to
September 30, 1995.

          (c)    TDCC and HSB hereby agree to cause Newco to
indemnify each party and its Affiliates against and to cause
Newco to hold each of them harmless from all Assumed Liabilities
and any and all Loss incurred or suffered by such party or any of
its Affiliates arising out of or in connection with any Assumed
Liability.

          (d)    TDCC hereby agrees to indemnify HSB, Radian and
Newco against and to hold HSB, Radian and Newco harmless from (i)
Excluded Liabilities retained by TDCC or any of its Affiliates
and (ii) any and all Loss incurred or suffered by HSB, Radian or
Newco arising out of or in connection with any such Excluded
Liabilities.  HSB hereby agrees to indemnify TDCC, DEI and Newco
against and to hold TDCC, DEI and Newco harmless from (i)
Excluded Liabilities retained by HSB or any of its Affiliates and
(ii) any and all Loss incurred or suffered by TDCC, DEI or Newco
arising out of or in connection with any such Excluded
Liabilities.

          (e)    TDCC and HSB hereby agree to cause Newco to
indemnify each party and its Affiliates against and to cause
Newco to hold each of them harmless from out-of-pocket losses any
of them incurs because (i) a Restricted Asset cannot be
transferred or by virtue of their efforts to transfer any
Restricted Asset to Newco or (ii), in the case of any Restricted
Asset that is a Special Foreign Asset, by virtue of their efforts
to dissolve, sell or dispose of any such Special Foreign Asset,
including without limitation, in each such case, out-of-pocket
losses paid for a breach of contract claim made by a third party
asserting that TDCC, DEI, HSB or Radian, as the case may be,
cannot perform its obligations under a Contract that is a
Restricted Asset in light of the formation of Newco; provided,
however, that the indemnity in this Section 8.02(e) shall not
cover lost revenues that any of TDCC, DEI, HSB or Radian do not
receive because a third party cancels or refuses to perform under
a Contract that is a Restricted Asset; provided further, however,
that the indemnity in this Section 8.02(e) shall not cover any
and all Loss incurred or suffered with respect to an Anti-
Competitive Contract that was not set forth in Section 3.27(c) of
this Agreement.  

          (f)    TDCC and HSB hereby agree to cause Newco to
indemnify each party to this Agreement and its Affiliates against
and to cause Newco to hold each party to this Agreement and its
Affiliates harmless from any liability for actions by Newco
subsequent to the Closing that result in a final judgment of (i)
infringement of any right relating to intellectual property owned
by an entity that is not a party to this Agreement or an
Affiliate of a party to this Agreement, (ii) misuse of any of the
Intellectual Property listed in Schedule 3.18 or (iii) an
antitrust violation involving any of the Intellectual Property
listed in Schedule 3.18 or a settlement in lieu of any such final
judgment.

          (g)    TDCC and HSB hereby agree to cause Newco to
indemnify TDCC, HSB and their Affiliates against and to cause
Newco to hold TDCC, HSB and their Affiliates harmless from all
liabilities related to foreign, U.S. Federal and state income
taxes incurred by DEI and Radian during the 1995 fiscal year;
provided, however, that Newco shall not be liable under this
Section 8.02(g) for aggregate amounts exceeding the amount set
forth in Schedule 8.02(g) relating to foreign, U.S. Federal and
state income taxes incurred by DEI and Radian during the 1995
fiscal year.

          (h)    TDCC and HSB hereby agree to cause Newco to
indemnify against and to cause Newco to hold DEI and its
Affiliates harmless from all costs, expenses, liabilities,
obligations, losses, damages, penalties, proceedings, actions,
suits, or claims of whatever kind or nature ("Claims") which may
be imposed upon, incurred by or asserted against DEI or its
Affiliates after the Closing Date with respect to, relating to,
or arising under or in connection with any DEI Plan and for all
Claims which may be imposed upon, incurred by or asserted against
DEI or its Affiliates with respect to, relating to, or arising
under or in connection with any Newco Plan.

          (i)    TDCC and HSB hereby agree to cause Newco to
indemnify and to cause Newco to hold Radian and its Affiliates
harmless  from all Claims which may be imposed upon, incurred by
or asserted against Radian or its Affiliates after the Closing
Date with respect to, relating to, or arising under or in
connection with any Radian Plan and for all Claims which may be
imposed upon, incurred by or asserted against Radian or its
Affiliates with respect to, relating to or arising under or in
connection with any Newco Plan.

          (j)    DEI and Radian hereby agree to cause Newco to
indemnify TDCC and its Affiliates against and to cause Newco to
hold TDCC and its Affiliates harmless for all Claims which may be
imposed upon, incurred by or asserted against TDCC or its
Affiliates relating to or arising under or in connection with any
Newco Plan. 

          (k)    DEI and Radian hereby agree to cause Newco to
indemnify HSB and its Affiliates against and to cause Newco to
hold HSB and its Affiliates harmless for all Claims which may be
imposed upon, incurred by or asserted against HSB or its
Affiliates relating to or arising under or in connection with any
Newco Plan. 

          8.03.  Notice of Third Party Claims; Assumption of
Defense.  For purposes of this Section 8.03, the term
"Indemnifying Party" shall mean any party responsible for
indemnifying another party pursuant to this Article VIII and
"Indemnified Party" shall mean any party entitled to indemnifica-
tion pursuant to this Article VIII.  The Indemnified Party shall
give prompt notice to the Indemnifying Party against whom
indemnity is sought, in accordance with the terms of
Section 10.01, of the assertion of any claim, or the commencement
of any suit, action or proceeding by any third party in respect
of which indemnity may be sought under this Agreement and of any
Losses which the Indemnified Party deems to be within the ambit
of this Article VIII, specifying with reasonable particularity
the basis therefor, and shall give the Indemnifying Party such
information with respect thereto as the Indemnifying Party may
reasonably request (but the prompt giving of such notice shall
not be a condition precedent to indemnification under this
Agreement except to the extent that the Indemnifying Party is
materially prejudiced by any delay in receiving such notice). 
The Indemnifying Party may, at its own expense, (a) participate
in and, (b) upon notice to the Indemnified Party and the
Indemnifying Party's written agreement that the Indemnified Party
is entitled to indemnification pursuant to Section 8.02 for Loss
arising out of such claim, suit, action or proceeding, at any
time during the course of any such claim, suit, action or
proceeding, assume the defense thereof; provided that (x) the
Indemnifying Party's counsel is reasonably satisfactory to the
Indemnified Party; and (y) the Indemnifying Party shall there-
after consult with the Indemnified Party upon the Indemnified
Party's reasonable request for such consultation from time to
time with respect to such claim, suit, action or proceeding.  If
the Indemnifying Party assumes such defense, the Indemnified
Party shall have the right (but not the duty) to participate in
the defense thereof and to employ counsel, at its own expense,
separate from the counsel employed by the Indemnifying Party. 
If, however, the Indemnified Party reasonably determines in its
judgment that representation by the Indemnifying Party's counsel
of both the Indemnifying Party and the Indemnified Party would
present such counsel with a conflict of interest, then such
Indemnified Party may employ separate counsel to represent or
defend it in any such claim, action, suit or proceeding and the
Indemnifying Party shall pay, as incurred, the reasonable fees
and other charges of such separate counsel.  Whether or not the
Indemnifying Party chooses to defend or prosecute any such claim,
suit, action or proceeding, the parties to this Agreement shall
cooperate in the defense or prosecution of such claim, suit,
action or proceeding.

          8.04.  Settlements or Compromises.  Any settlement or
compromise made or caused to be made by the Indemnified Party or
the Indemnifying Party, as the case may be, of any such claim,
suit, action or proceeding of the kind referred to in
Section 8.03 shall also be binding upon, and be for the benefit
of, the Indemnifying Party or the Indemnified Party, as the case
may be, in the same manner as if a final judgment or decree had
been entered by a court of competent jurisdiction in the amount
of such settlement or compromise; provided that:

                 (x)  no settlement or compromise shall be
          entered into by the Indemnifying Party without the
          Indemnified Party's express written consent (which
          consent shall not be unreasonably withheld) unless (i)
          contained in this Agreement is an unconditional release
          by the claimant or the plaintiff of all liability of
          the Indemnified Party with respect to such claim or
          demand, and (ii) the Indemnifying Party has agreed in
          writing that such claim is the subject of indemnity
          under Section 8.02; and

                 (y)  no settlement or compromise shall be
          entered into by the Indemnified Party without the
          Indemnifying Party's express written consent unless the
          Indemnified Party shall have given the Indemnifying
          Party at least 10 days' notice of any such proposed
          settlement or compromise, during which time the
          Indemnifying Party may assume the defense of such
          claim, suit, action or proceeding (but only if it
          provides for security for or payment of any
          indemnification obligations in a manner reasonably
          satisfactory to the Indemnified Party); provided,
          however, that if the Indemnifying Party assumes the
          defense of a claim, suit, action or proceeding, the
          Indemnified Party may not settle or compromise such
          claim, suit, action or proceeding.

          8.05.  Failure of Indemnifying Party to Act.  If the
Indemnifying Party does not elect to assume the defense of any
claim, suit, action or proceeding, then any failure of the
Indemnified Party to defend or to participate in the defense of
any such claim, suit, action or proceeding or to cause the same
to be done, shall not relieve the Indemnifying Party of its
obligations under this Agreement; provided that the Indemnified
Party gives the Indemnifying Party at least 10 days' notice of
its proposed failure to defend or participate and affords the
Indemnifying Party the opportunity to assume the defense thereof.


                           ARTICLE IX

                           TERMINATION

          9.01.  Grounds for Termination.  This Agreement may be
terminated prior to the Closing as follows:

          (i)    by mutual written agreement of TDCC and HSB;

          (ii)   by either TDCC or HSB if there shall be any law
     or regulation that makes the consummation of the
     transactions contemplated by this Agreement illegal or
     otherwise prohibited or if consummation of the transactions
     contemplated by this Agreement would violate any
     nonappealable final order, decree or judgment of any court
     or governmental body having competent jurisdiction; or

          (iii)  by either TDCC or HSB if the Closing shall not
     have been consummated on or before the date ninety days
     after the date of this Agreement; provided that the right to
     terminate this Agreement under this Section 9.01(iii) shall
     not be available to any party whose failure to fulfill any
     obligation under this Agreement has been the cause of, or
     resulted in, the failure of the Closing to have been
     consummated on or before such date.

          9.02.  Effect of Termination.  If this Agreement is
terminated as permitted by Section 9.01, such termination shall
be without liability of either TDCC, HSB, DEI or Radian (or any
shareholder, director, officer, partner, employee, agent,
consultant or representative of such party) to any other party,
and following such termination no party shall have any liability
to any other party; provided that no such termination shall
relieve any party that has breached any provision of this
Agreement from liability for such breach, and any such breaching
party shall remain fully liable for any and all Loss incurred or
suffered by another party to this Agreement as a result of such
breach.  The provisions of Section 10.03 and the Confidentiality
Agreement shall survive any termination of this Agreement
pursuant to Section 9.01.


                            ARTICLE X

                          MISCELLANEOUS

          10.01.  Notices.  All notices, requests and other
communications under this Agreement shall be in writing and
deemed to have been duly given (i) when sent by telecopy or
facsimile transmission during normal business hours at the
location of receipt, (ii) upon actual receipt if deposited with a
nationally recognized overnight courier service, all charges
prepaid, for delivery to the addressee, or (iii) three days
following deposit with the United States mail by certified first
class mail, postage prepaid, return receipt requested, to such
party at the following addresses:

          if to HSB or Radian, to:

                 The Hartford Steam Boiler Inspection 
                 and Insurance Company
                 One State Street
                 P.O. Box 5024
                 Hartford, Connecticut 06102-5024
                 Telecopy:  (203)722-5710
                 Attention: General Counsel





                 with a copy to:

                 Thomas H. Kennedy, Esq.
                 Skadden, Arps, Slate, Meagher & Flom
                 919 Third Avenue
                 New York, New York 10022
                 Telecopy:  (212)735-3637

          if to TDCC or DEI, to:

                 The Dow Chemical Company
                 2030 Dow Center
                 Midland, Michigan  48674
                 Telecopy:  (517) 636-0861
                 Attention:  Jane M. Gootee

                 with a copy to:

                 Scott J. Davis, Esq.
                 Mayer, Brown & Platt
                 190 South LaSalle Street
                 Chicago, Illinois  60603
                 Telecopy:  (312) 701-7711

or to such other address as either TDCC or HSB shall furnish to
the other by notice given in accordance with this Section.

          10.02.  Amendments; No Waivers.  (a)  Any provision of
this Agreement may be amended or waived if, and only if, such
amendment or waiver is in writing and signed, in the case of an
amendment, by the parties, or in the case of a waiver, by the
party against whom the waiver is to be effective.

          (b)    No failure or delay by either party in
exercising any right, power or privilege under this Agreement
shall operate as a waiver thereof nor shall any single or partial
exercise thereof preclude any other or further exercise thereof
or the exercise of any other right, power or privilege.  The
rights and remedies provided in this Agreement shall be
cumulative and not exclusive of any rights or remedies provided
by law.

          10.03.  Expenses.  Except as otherwise provided in this
Agreement, if this Agreement is terminated pursuant to
Section 9.01, all costs and expenses incurred in connection with
this Agreement shall be paid by the party incurring such cost or
expense.  If this Agreement is not terminated pursuant to
Section 9.01, the costs set forth on Schedule 10.03 shall be
shared equally between the parties, and each party will bear all
other costs and expenses incurred by it, including without
limitation the cost of its legal, accounting and investment
banking fees and out-of-pocket expenses incurred in connection
with Agreement.

          10.04.  Successors and Assigns.  The provisions of this
Agreement shall be binding upon and inure to the benefit of the
parties and their respective successors and assigns; provided
that no party may assign, delegate or otherwise transfer any of
its rights or obligations under this Agreement without the
consent of the other parties.

          10.05.  Governing Law.  This Agreement shall be
construed in accordance with and governed by the law of the State
of Delaware without regard to the conflicts of law rules of such
State.

          10.06.  Counterparts.  This Agreement may be signed in
any number of counterparts, each of which shall be an original,
with the same effect as if the signatures thereto and hereto were
upon the same instrument.

          10.07.  Entire Agreement.  This Agreement and the other
Transaction Documents constitute the entire agreement among the
parties with respect to the subject matter of this Agreement and
supersede all prior agreements, understandings and negotiations,
both written and oral, among the parties with respect to the
subject matter of this Agreement.  No representation, inducement,
promise, understanding, condition or warranty not set forth in
this Agreement or in the other documents described above has been
made or relied upon by any of the party to this Agreement.

          10.08.  Captions.  The captions in this Agreement are
included for convenience of reference only and shall be ignored
in the construction or interpretation of this Agreement.

          10.09.  Specific Performance.  Each party to this
Agreement acknowledges that the other parties will be irreparably
harmed and will have no adequate remedy at law if such party
fails to perform any of its obligations under this Agreement.  It
is accordingly agreed that, in addition to any other remedies
which may be available, the parties have the right to obtain
injunctive relief to restrain a breach or threatened breach of,
or otherwise obtain specific performance of, the covenants and
other agreements of the parties contained in this Agreement and
the Confidentiality Agreement.

          10.10.  Severability.  Any term or provision of this
Agreement which is invalid or unenforceable shall be ineffective
to the extent of such invalidity or unenforceability without
rendering invalid or unenforceable the remaining terms and
provisions of this Agreement.

          10.11.  No Third Party Beneficiaries.  The parties
agree that, except as expressly provided in Section 8.02, there
are no third party beneficiaries of this Agreement (other than,
as provided in this Agreement, Newco) for and none of the
provisions of this Agreement shall be deemed to inure to the
benefit of any Person, including any employee or former employee
of DEI or Radian (including any beneficiary or dependent thereof)
not a party to this Agreement.

          The parties have caused this Agreement to be duly
executed.

                              THE DOW CHEMICAL COMPANY


                              By:/s/ William S. Stavropoulos
                                 Name: William S. Stavropoulos
                                 Title: President and CEO



                              DOW ENVIRONMENTAL INC.


                              By:/s/ L.R. Edmonson
                                 Name:  L.R. Edmonson
                                 Title: Senior Vice President



                              THE HARTFORD STEAM BOILER
                              INSPECTION AND INSURANCE COMPANY


                              By:/s/ Robert C. Walker
                                 Name:Robert C. Walker
                                 Title: Senior Vice President and General
                                        Counsel



                              RADIAN CORPORATION


                              By:/s/ P.E. Hudson
                                 Name: P.E. Hudson
                                 Title: Senior Vice President

                            EXHIBIT A

1.   Water Effluents - technologies to monitor, reduce, and treat
     wastewater and treatment residues, such as:

     A.  separation of suspended solids by methods such as
         coagulation, clarification, flotation, centrifugation
         and filtration;

     B.  separation/conversion of inorganics by methods such as
         precipitation, ion exchange and reverse osmosis;

     C.  separation of organics by methods such as adsorption,
         membranes, stripping, and extraction;

     D.  biological treatment via aerobic, anaerobic, and anozic
         methods;

     E.  conversion/destruction of organics via wet air
         oxidation, hydrolysis, ozonation, and chlorination
         methods;

     F.  auxiliary unit operations for pH adjustment and nutrient
         addition; and

     G.  sludge dewatering, reduction, and treatment.

2.   Thermal Treatment - various forms of thermal treatment for
     solids, liquids, and vapors including but not limited to
     rotary kilns, fluid-bed incinerators, process rotary kilns,
     halogenated acid furnaces, process boilers/furnaces, ground
     flares, catalytic combustion, recuperative combustion,
     burner management, characterization and feeds to combustion
     units, small solid waste incinerators, multiple-hearth
     incinerators, molten-bath incinerators, retorting liquid-
     injection incinerators, flares, fume incinerators
     regenerative combustion, electric heated combustion, feed
     atomization, and PICs formation and control.

3.   Soil/groundwater - investigation, characterization,
     protection, management, and remediation technologies
     including:

     A.  assessment and monitoring of soil/groundwater; 

     B.  geophysical testing;

     C.  modeling;

     D.  containment and/or recovery of contaminated groundwater;

     E.  remediation of contaminated soil/groundwater;

     F.  design and operation of landfills and surface
         impoundments;

     G.  landfarming and composting;

     H.  spill containment;

     I.  leak detection methods;

     J.  sewers, sumps, foundations, and other civil engineering
         structures;

     K.  concrete quality; and

     L.  solidification/fixation of sludges and other wastes.

4.   Air Quality - technologies to monitor, prevent, capture,
     and/or treat emissions, as well as regulatory compliance,
     including:

     A.  monitoring combustion products;

     B.  sampling and analysis;

     C.  modeling;

     D.  emission calculation methods;

     E.  quenching/absorption;

     F.  wet and dry scrubbing;

     G.  adsorption (carbon and other);

     H.  particulate removal systems;

     I.  fugitive emissions management including work on pumps,
         valves, gaskets, etc. to reduce emissions;

     J.  chemical oxidation;

     K.  VOC monitoring;

     L.  biological vent treatment;

     M.  pressure swing adsorption;

     N.  gas/vapor containment;

     O.  NOx control;

     P.  filtering; and

     Q.  condensation.




                                               EXHIBIT 99.2

              LIMITED LIABILITY COMPANY AGREEMENT

                            	OF

                 	RADIAN INTERNATIONAL LLC


	Dated as of January 1, 1996


	TABLE OF CONTENTS /


Article	                    Title	                    Page

                        		ARTICLE I
                        	DEFINITIONS



 1.1  Definitions	                                     1


                         	ARTICLE II
                         	FORMATION

 2.1  Formation of the Company                        	1
 2.2  Name	                                            1
 2.3  Purposes	                                        1
 2.4  Powers of the Company                           	2
 2.5  Member's Authority	                              2
 2.6  Company Property                                	2
 2.7	Principal Place of Business; Registered 
	  Office and Agent	                                   2
 2.8  Office of and Agent for Service of Process	      2


                        		ARTICLE III
                     	CAPITAL CONTRIBUTIONS

 3.1  Initial Contributions                           	3
 3.2  Return of Capital Contribution                  	3
 3.3  Interest                                        	4
 3.4  Liability of Members	                            4
 3.5  Additional Contributions	                        4
 3.6  Failure to Contribute	                           6

                          	ARTICLE IV
	                     INTERESTS OF MEMBERS

 4.1  Company Interests of Members                    	8
 4.2  Capital Accounts                                	8
 4.3  Interest on Capital Accounts                    	8
 4.4  Loans from Members                              	8
 4.5  Transferred Capital Accounts                    	8

                           	ARTICLE V
                  	DISTRIBUTIONS, EXPENSES AND  
	                ALLOCATIONS OF PROFITS AND LOSSES

 5.1	Allocations of Net Profits and Net
	  Losses from Operations	                             9
 5.2	Special Allocations                              10
 5.3	Expenses of the Company	                         14
 5.4	Distributions                                   	15
 5.5	Limitation Upon Distributions	                   16
 5.6	Distributions to Cover Taxes	                    16


                        		ARTICLE VI
                MANAGEMENT RIGHTS, DUTIES AND
	               POWERS OF THE REPRESENTATIVES

 6.1	Management	                                      18
 6.2	No Management by Members                        	19
 6.3	Number, Qualification and Tenure of 
	   Representatives	                                  19
 6.4	Meetings                                        	20
 6.5	Quorum and Voting                               	21
 6.6	Committees                                      	21
 6.7	Action Without Meeting                          	21
 6.8	Compensation	                                    22
 6.9	Rules of Procedure                              	22
 6.10	Certain Transactions                           	22
 6.11	Right to Rely on Authority of the
      Representatives	                                23
 6.12	Responsibility of Members and Representatives  	24
 6.13	Indemnification                                	24
 6.14	Designation of Tax Matters Partner; Expenses
 	  Regarding Tax Matters; Filing of Tax Returns     	26


                        	ARTICLE VII
	                 BOOKS AND RECORDS; REPORTS
          	TO MEMBERS; CAPITAL ACCOUNT MAINTENANCE

 7.1	Books; Reports                                  	27
 7.2	Accounting and Fiscal Year                      	28
 7.3	Maintenance of Capital Accounts                 	28
 7.4	Bank Accounts                                   	28
 7.5	Insurance	                                       28


                        	ARTICLE VIII
	                TRANSFER OF COMPANY INTEREST;
	                 RADIAN OPTION TO SELL; LIENS

 8.1	Transfer of Company Interest Generally          	28
 8.2	Transfers of Company Interests                  	29
 8.3	Radian Option to Sell                           	29
 8.4	Liens	                                           30


                         	ARTICLE IX
                 	DISSOLUTION AND WINDING UP

 9.1	Dissolution                                     	30
 9.2	Winding-Up	                                      32
 9.3	Accounting on Dissolution	                       32
 9.4	Accounting; Allocations of Residual Net Profits
	  and Residual Net Loss After Dissolutions	          32
 9.5	Conversion of Assets to Cash                    	33
 9.6	Distributions in Liquidation	                    34
 9.7	Compliance with Treasury Regulations	            34
 9.8	Section 708 Termination	                         35
 9.9	Continuation of the Company                     	35
 9.10	Waiver of Certain Rights                       	35


                      		ARTICLE X
	                MISCELLANEOUS PROVISIONS

10.1	Assignment	                                      36
10.2	Notices	                                         36
10.3	Governing Law                                   	37
10.4	Choice of Forum                                 	37
10.5	Consent to Jurisdiction	                         37
10.6	Waiver of Jury Trial	                            37
10.7	Entire Agreement; Amendments                    	37
10.8	Execution in Counterparts	                       37
10.9	Remedies and Waiver                             	37
10.10	Headings	                                       38
10.11	Third Party Beneficiaries	                      38
10.12	Further Assurances	                             38
10.13	Public Announcements	                           38
10.14	Termination	                                    38


Exhibit A	Definitions

Schedule 2.3         Chemical Products Manufactured By Radian
Schedule 6.1         Initial Officers and Duties
Schedule 6.10(a)(v)  Accounting Policies or Procedures



	LIMITED LIABILITY COMPANY AGREEMENT


	This LIMITED LIABILITY COMPANY AGREEMENT (this "Agreement") 
of Radian International LLC (the "Company"), dated as of January 
1, 1996, is between Dow Environmental Inc., a Delaware 
corporation ("DEI") and Radian Corporation, a Texas corporation 
("Radian").  DEI and Radian are sometimes individually referred 
to in this Agreement as a "Member" and collectively as "Members".

	NOW, THEREFORE, the parties agree as follows:




 ARTICLE I 

	DEFINITIONS

I.1   Definitions.  Capitalized terms used in this Agreement 
which are not otherwise defined in this Agreement shall have the 
meanings given to such terms in Exhibit A.


ARTICLE II 

FORMATION

II.1   Formation of the Company.  The Members hereby form a 
limited liability company pursuant to the Act on the terms and 
for the purposes set forth in this Agreement.  The rights and 
duties of the Members and the administration and termination of 
the Company shall be as provided in the Act, except as modified 
by this Agreement.

II.2   Name.  The name of the Company shall be "Radian 
International LLC" or such other name as is designated from time 
to time by the Members and, if such other name is to contain 
"DOW", as approved by The Dow Chemical Company ("TDCC").  The 
Members Committee is hereby directed to file, or cause to be 
filed, with the Secretary of State of the State of Delaware a 
Certificate of Formation reflecting the name of the Company.

II.3   Purposes.  The purposes of the Company shall be to 
engage for profit in the Newco Services Business and to engage 
for profit in any and all other activities reasonably related to 
or incidental to the Newco Services Business, and to engage for 
profit in any other business, whether or not related or 
incidental thereto, as determined by the Members from time to 
time; provided, however, that the Company shall not engage in the 
production or manufacture of chemical products, other than the 
chemical products manufactured by Radian as of the Closing Date 
and listed on Schedule 2.3, or disclose technology received from 


TDCC to any third party if such technology is to be used by, or 
on behalf of, the third party to optimize its production or 
manufacture of chemical products that are being, or will be, 
manufactured or produced by TDCC.  Notwithstanding the foregoing, 
the Company may engage in the production or manufacture of 
analytical reference standard materials for end uses such as 
environmental, pharmaceutical and forensic drug analyses, such 
materials typically being manufactured and sold in microgram and 
gram quantities, but with potential sales up to ten (10) 
kilograms per material or product to a given purchaser in a 
twelve month period; provided, however, that potential sales in 
quantities that exceed the ten (10) kilogram limit will be 
referred to the Members Committee for approval.

II.4   Powers of the Company.  Subject to the restrictions 
set forth in this Agreement, the Company shall have the power to 
exercise all the powers and privileges granted by this Agreement 
and by law, together with any powers incidental thereto, so far 
as such powers and privileges are necessary or appropriate for 
the conduct, promotion or attainment of the purposes of the 
Company.

II.5   Member's Authority.  Except as otherwise provided in 
this Agreement, no Member shall have any authority to act for, or 
to assume any obligations or responsibilities on behalf of, any 
other Member or the Company.

II.6   Company Property.  All real and personal property, 
whether tangible or intangible (including, without limitation, 
all permits and licenses), owned by or granted to or held by the 
Company shall be deemed to be owned by or granted to or held by 
the Company as an entity, and no Member shall have any ownership 
or right to use any such property, except as may be otherwise 
agreed by the Company and the Members.

II.7   Principal Place of Business; Registered Office and 
Agent.  The principal place of business of the Company shall be 
located at Austin, Texas or at such other place or places as the 
Members Committee may from time to time determine.  The business 
of the Company may also be conducted at such additional place or 
places as the Members Committee may designate; provided, however, 
that the Company shall not maintain an office or a principal 
place of business in any jurisdiction that would jeopardize the 
limitation on liability afforded to the Members under the Act or 
this Agreement and; provided, further, that the Members Committee 
shall take, or cause to be taken, all steps necessary to preserve 
the limited liability of the Members in connection with any such 
additional places of business.

II.8   Office of and Agent for Service of Process.  The 
registered office of the Company in Delaware shall be Corporation 
Trust Center, 1209 Orange Street, Wilmington, Delaware 19801.  
The Company's agent for service of process on the Company in 
Delaware shall be The Corporation Trust Company.  The Members 
Committee may change, at any time and from time to time, the 
location of such registered office and/or such registered agent 
upon written notice of the change to the Members.


ARTICLE III 

CAPITAL CONTRIBUTIONS

III.1   Initial Contributions.  On the Closing Date (or in 
the case of Restricted Assets and liabilities associated thereto, 
after the Closing Date), certain contributions will be made to 
the Company by or on behalf of, and the Company will assume 
certain liabilities of, the Members and their Affiliates, all as 
provided in the Contribution Agreement (the "Capital 
Contribution").  The Members agree that immediately after such 
contributions and assumptions, the sum of the cash and the Gross 
Asset Value of assets other than cash contributed by each Member, 
reduced by liabilities of such Member assumed by the Company, to 
be contributed to the Capital Account of each of DEI and Radian, 
respectively, will be as follows:

		DEI                     $225,000,000
		Radian                  $150,000,000

III.2   Return of Capital Contribution.

(a) 	Except as otherwise provided in this Agreement, no 
return shall be paid by the Company to any Member on account of 
any Capital Contribution.  No Member shall have liability to any 
other Member for the return of any Capital Contribution and any 
such return shall be made only to the extent of available Company 
assets in accordance with the terms of this Agreement.

(b) 	Except as otherwise provided in this Agreement, no 
Member shall have priority over the other Member as to the return 
of its Capital Contribution or as to distributions of cash made 
by the Company.

(c) 	Except as otherwise provided in this Agreement, a 
Member shall not be entitled to withdraw any part of its capital 
or to (i) receive any distributions from the Company, (ii) demand 
or receive property other than cash in return for its Capital 
Contribution or (iii) receive any funds or property of the 
Company.

III.3   Interest.  No interest shall be paid on any capital 
contributed to the Company, notwithstanding any disproportion 
between the Capital Contribution of each of the Members.

III.4   Liability of Members.  Except as otherwise provided 
in the Act and except with respect to their several respective 
obligations under this Agreement to contribute their respective 
Capital Contributions, the Members shall not have any personal 
liability to contribute money or other property to, or in respect 
of, the Company or any of its liabilities or obligations.

III.5   Additional Contributions.

(a) 	No Company Interest or other ownership interest in the 
Company or its assets other than those of the Members shall be 
issued by the Company without the consent of each Member and, 
except as provided in Section 3.1 and this Section 3.5, no Member 
shall be obligated to make any additional contributions to the 
capital of the Company.

(b) 	Subject to Section 3.5(e), the Members Committee shall, 
if it reasonably determines that the Company needs additional 
funds, use its commercially reasonable efforts to obtain a credit 
facility (a "Credit Facility") from one or more commercial 
lenders in form and substance reasonably satisfactory to the 
Members Committee.

(c) 	If the Members Committee reasonably determines, in its 
sole discretion, that it is desirable for the Company to obtain a 
guarantee of such Credit Facility, each Member shall cause its 
respective Parent to provide such a guarantee, in form and 
substance reasonably satisfactory to the Parents and such 
commercial lenders, of the amount of such Credit Facility 
multiplied by each Member's Company Interest; provided, however, 
that if a guarantee is required subsequent to December 31, 1998, 
then, for purposes of this Section 3.5(c), each Member's Company 
Interest shall be its respective Company Interest as of 
January 1, 2000. 

(d) 	Subject to Sections 3.5(e) and (g), if, after using 
commercially reasonable efforts to obtain a Credit Facility 
pursuant to Sections 3.5(b) and (c), the Members Committee 
reasonably determines, in its sole discretion, that such Credit 
Facility cannot be obtained on commercially reasonable terms 
pursuant to Sections 3.5(b) and (c) or if the Credit Facility 
obtained by the Company is insufficient for the needs of the 
Company, then each of DEI and Radian hereby agrees to make loans 
to the Company (the "Ordinary Loans") in order to support the 
needs of the Company in form and substance reasonably satis-
factory to Radian and DEI.  The Company's authorized officer 
shall notify DEI and Radian in writing at least three (3) 
business days in advance of the time each such loan is required 
to be made to the Company.  Upon such a written request from the 
Company's authorized officer, each Member shall make a cash loan 
to the Company in an amount equal to (i) the amount of the 
Company's loan determined to be needed by the Members Committee 
multiplied by (ii) such Member's Company Interest; provided, 
however, that if an Ordinary Loan is required subsequent to 
December 31, 1998, then, for purposes of this Section 3.5(d), 
each Member's Company Interest shall be its respective Company 
Interest as of January 1, 2000.  An Ordinary Loan shall bear 
interest at the rate equal to the lower of (i) the maximum rate 
allowed by law or (ii) two (2) percentage points over the Prime 
Rate.

(e) 	Notwithstanding the foregoing, the aggregate amount 
borrowed under the Credit Facility or any Ordinary Loans shall 
not result in a Debt Ratio in excess of 0.40.

(f) 	Prior to January 1, 1999, no additional cash 
contributions may be required without the prior written consent 
of each of the Members.  If, on or after January 1, 1999, the 
Members Committee determines that the Company requires funds and 
that borrowings under a Credit Facility or an Ordinary Loan in 
response to such requirement would cause the Debt Ratio to exceed 
0.40, each of DEI and Radian hereby agrees that it shall make 
cash contributions to the Company in an amount equal to (i) the 
amount of the Company's cash requirement in excess of the amount 
that would cause the Debt Ratio to equal 0.40 as determined by 
the Members Committee multiplied by (ii) such Member's Company 
Interest; provided, however, that if an additional cash 
contribution is required on or prior to December 31, 1999, then, 
for purposes of this Section 3.5(f), each Member's Company 
Interest shall be its respective Company Interest as of 
January 1, 2000.  Once the Members Committee approves an 
additional cash contribution, the Company's officers shall have, 
subject to any terms or conditions specified by the Members 
Committee at the time it so approves such additional cash 
contribution, the reasonable discretion to determine the timing 
of such cash contribution giving due consideration to the 
Company's cash needs as determined by the Members Committee.  The 
Company's authorized officer shall notify DEI and Radian at least 
ten (10) days in advance of the time each such cash contribution 
is required to be made to the Company.

	(g)	Notwithstanding the foregoing (and regardless of 
whether the Debt Ratio is less than or equal to 0.40), no Member 
shall be required to make any cash contribution, to guarantee the 
Credit Facility or to make Ordinary Loans if to do so would cause 
such Member or its respective Affiliates to violate any Federal, 
state or local law or regulation applicable to such Member or its 
respective Affiliates or would, by operation of any such law or 
regulation, significantly restrict the Member's or its respective 
Affiliates' ability to conduct its business as such business was 
conducted prior to the Closing.  Each Member shall use, and shall 
cause its respective Affiliates to use, all reasonable efforts to 
maintain its ability to make the cash contributions, guarantees 
and loans contemplated by this Section 3.5.



III.6   Failure to Contribute.  If either DEI or Radian (in 
either such case, the "Non-Contributing Member") (x) fails 
(including a failure because of legal requirements as permitted 
by Section 3.5(g)), in whole or in part, to make any cash 
contribution, to guarantee the Credit Facility or to make 
Ordinary Loans or (y) defaults, in whole or in part, on any other 
obligation to pay money under this Agreement within five (5) 
business days of giving of notice by the other Member to the Non-
Contributing Member that such cash contribution, guarantee or 
Ordinary Loan is due or that the Non-Contributing Member has 
defaulted in any other such obligation under this Agreement, DEI 
(with respect to circumstances in which Radian is the Non-
Contributing Member) or Radian (with respect to circumstances in 
which DEI is the Non-Contributing Member), as the case may be (in 
either such case, the "Contributing Member"), shall have the 
right to:

(i)   advance directly to the Company such additional 
cash contribution or provide such guarantee or Ordinary 
Loan, or portion thereof, or such other payment of money, or 
portion thereof, as the Non-Contributing Member has failed 
to make or defaulted on (the "Non-Contributing Member's 
Share"), and such advance, together with a proportionate 
amount of the corresponding cash contribution or other 
payment, if any, made by such Contributing Member, shall be 
deemed a loan by the Contributing Member to the Company (a 
"Member Loan").  A Member Loan shall bear interest at the 
rate equal to the lower of: (A) the maximum rate allowed by 
law; or (B) four (4) percentage points over the Prime Rate. 
 A Member Loan shall be recouped and repaid from all funds 
which would have been available to make distributions which 
the Members would otherwise be entitled to receive from the 
Company but for this Section 3.6, all of which shall instead 
be paid by the Company to the Contributing Member and 
applied to the payment of the Member Loan and all interest 
thereon, until the same shall have been paid in full.  It is 
understood, however, that to the extent the principal and 
interest of a Member Loan are not repaid in full by the 
Company from all funds which would otherwise have been 
available to make distributions (including any distributions 
pursuant to Section 9.6(b)) to the Members, the Non-
Contributing Member shall be obligated to repay an amount 
equal to the Non-Contributing Member's Share of the 
outstanding balance of the principal and interest of such 
Member Loan upon commencement of the winding up of the 
Company in accordance with Section 9.2.  Any amount which 
would otherwise have been available to make distributions 
from the Company that is applied to any Member Loan shall be 
credited first to any interest then due on such Member Loan, 
and the balance of the distribution shall be credited 
against the outstanding principal balance of such Member 
Loan; or

(ii)  upon notice to the Non-Contributing Member, 
purchase all, but not less than all, of the Non-Contributing 
Member's Company Interest, (A) if on or prior to 
December 31, 1998, at the price equal to the amount set 
forth in Section 8.3 of this Agreement as if Radian had 
exercised its option to sell; provided, however, that such 
price shall be discounted at a rate of 10% per year or 
portion thereof if such purchase shall occur prior to 
December 31, 1997, and (B) thereafter, at the fair market 
value therefor.  Notwithstanding the foregoing, if the 
enforceability of such Contributing Member's right to 
purchase the Non-Contributing Member's Company Interest as 
set forth in this subsection (ii) is in any way limited by 
general equitable principles, Bankruptcy, moratorium, or 
other laws affecting creditors' rights generally then, upon 
notice to the Non-Contributing Member and the Company, the 
Contributing Member or any of its Affiliates shall have the 
right to purchase all, but not less than all of the assets 
and liabilities of the Company at the fair market value 
therefor.  In either case, if DEI and Radian cannot agree 
upon such fair market value within sixty (60) days after the 
notice to purchase the Non-Contributing Member's Interest or 
all the assets and liabilities of the Company, as the case 
may be, is delivered, either DEI or Radian may, by notice to 
the other, invoke the Appraisal Procedure.  If the Appraisal 
Procedure is required to determine the fair market value of 
the Non-Contributing Member's Interest or all the assets and 
liabilities of the Company, as the case may be, the fees and 
expenses of such Appraisal Procedure shall be paid by the 
Non-Contributing Member.  The closing of either such sale 
shall take place upon the date that is within thirty (30) 
days after such fair market value is determined in 
accordance with this Section 3.6 and all legal requirements 
relating to such sale have been satisfied; provided, 
however, that if such sale is not in compliance with any 
such legal requirements, then DEI and Radian shall equitably 
adjust the arrangements set forth in this Section 3.6(ii) in 
light of what is legally possible and in compliance with any 
such legal requirements in order to effectuate the intent of 
the parties.

	Notwithstanding the foregoing, if the Non-Contributing 
Member fails, in whole or in part, to make any cash contribution, 
to guarantee the Credit Facility or to make Ordinary Loans 
because of legal requirements as permitted by Section 3.5(g), 
then the Contributing Member shall only have the rights set forth 
in subsection (i) above; provided, however, that any Member Loan 
caused by legal requirements as permitted by Section 3.5(g) shall 
bear interest equal to the interest rate paid on an Ordinary 
Loan.  

	Except as set forth above, the exercise of the right to make 
a Member Loan or purchase the Non-Contributing Member's Company 
Interest shall be in addition to any other rights or remedies 
that the Contributing Member may have under this Agreement or at 
law or in equity arising from the Non-Contributing Member's (i) 
failure to make the required cash contribution, (ii) failure to 
provide its portion of the required guarantee, (iii) failure to 
make its required loan or (iv) default in any other obligation to 
pay money.

ARTICLE IV   

INTERESTS OF MEMBERS

IV.1   Company Interests of Members.  The "Company Interests" 
of the Members shall be as follows:

	For the period:	                    DEI	         Radian

	through December 31, 1999	          60%	           40%

	after December 31, 1999            	65%	           35%

IV.2   Capital Accounts.  A separate Capital Account shall be 
established and maintained with respect to each Member.

IV.3   Interest on Capital Accounts.  Except as specifically 
provided in this Agreement, no Member shall be entitled to any 
interest on its Capital Account or its contributions to the 
capital of the Company, nor shall any Member have the right to 
demand or receive the return of all or any part of its Capital 
Account or its contributions to the capital of the Company.

IV.4   Loans from Members.  Loans by a Member to the Company 
(including, without limitation, any Ordinary Loan or Member Loan) 
shall not be considered capital contributions.

IV.5   Transferred Capital Accounts.  In the event that any 
Member transfers all or a portion of its Company Interest in 
accordance with the terms of this Agreement, the transferee shall 
succeed to the Capital Account of the transferor Member to the 
extent such Capital Account relates to the transferred Company 
Interest or portion thereof.

ARTICLE V 

DISTRIBUTIONS, EXPENSES AND  
ALLOCATIONS OF PROFITS AND LOSSES

V.1   Allocations of Net Profits and Net Losses from 
Operations.

(a) 	Allocation of Net Profits.  Subject to Section 5.2 and 
Section 9.4, the Net Profits of the Company for each Fiscal Year 
will be allocated as follows:

(i)    Net Profits will first be allocated to the 
Members to offset prior allocations of Net Losses pursuant 
to Section 5.1(b)(ii) to the extent such allocations have 
not been so offset;

(ii)   next, Net Profits will be allocated to the 
Members in proportion to their Company Interests as of the 
last day of the Fiscal Year to which such Net Profits are 
attributable.

(b) Allocation of Net Losses.  Subject to Section 5.2 and 
Section 9.4, the Net Losses of the Company for each Fiscal Year 
will be allocated as follows:

(i)    First, Net Losses shall be allocated to the 
Members in proportion to their Company Interests as of the 
last day of the Fiscal Year to which such Net Losses are 
attributable;

(ii)   Except as otherwise required by the last sentence 
of this Section 5.1(b)(ii), no allocation of loss, 
deduction, and/or expenditures described in Code 
Section 705(a)(2)(B) shall be charged to the Capital 
Accounts of any Member if such allocation would cause such 
Member to have an Adjusted Deficit Capital Account.  The 
amount of the loss, deduction, and/or Code 
Section 705(a)(2)(B) expenditure which would have caused a 
Member to have an Adjusted Deficit Capital Account shall 
instead be charged to the Capital Account of any Members 
which would not have an Adjusted Deficit Capital Account as 
a result of the allocation, in proportion to their positive 
Capital Accounts (after giving effect to the adjustments 
described in the definition of Adjusted Deficit Capital 
Account), or, if no such Members exist, then to the Members 
in accordance with their Company Interest.

(c) 	Proportionate Share of Items.  All allocations of Net 
Profits and Net Losses shall be deemed to be comprised of a 
proportionate share of all items comprising such Net Profits and 
Net Losses.

V.2   Special Allocations.

(a) 	If any Member unexpectedly receives any adjustments, 
allocations, or distributions described in Treas. Regs. 
Section 1.704-1(b)(2)(ii)(d)(4), (5), or (6), which create or 
increase an Adjusted Deficit Capital Account of the Member, then 
items of Company income and gain (consisting of a pro rata 
portion of each item of Company income, including gross income, 
and gain for such year) shall be specially allocated to the 
Capital Account of the Member in an amount and manner sufficient 
to eliminate, to the extent required by the Treasury Regulations, 
the Adjusted Deficit Capital Account so created as quickly as 
possible; provided, however, that an allocation pursuant to this 
Section 5.2(a) shall be made only if and to the extent that such 
Member would have an Adjusted Deficit Capital Account after all 
other allocations provided for in this Section 5.2 have been 
tentatively made as if this Section 5.2(a) were not in this 
Agreement.  It is intended that this Section 5.2(a) be 
interpreted to comply with the alternate test for economic effect 
set forth in Treas. Regs. Section 1.704-1(b)(2)(ii)(d).

(b) 	If any Member would have a deficit Capital Account at 
the end of any Company taxable year which is in excess of the sum 
of (i) the amount that the Member is obligated to restore to the 
Company under Treas. Regs. Section 1.704-1(b)(2)(ii)(c) and (ii) 
the amount such Member is deemed to be obligated to restore 
pursuant to the penultimate sentences of Treas. Regs. 
Sections 1.704-2(g)(1) and 1.704-2(i)(5), such Member shall be 
specially allocated items of Company income (including gross 
income) and gain in the amount of the excess as quickly as 
possible; provided, however, that an allocation pursuant to this 
Section 5.2(b) shall be made only if and to the extent that such 
Member would have a deficit Capital Account in excess of such sum 
after all other allocations provided for in this Section 5.2 have 
been made as if Section 5.2(a) and this Section 5.2(b) were not 
in this Agreement.

(c) 	Except as otherwise provided in Treas. Regs. 
Section 1.704-2(f), notwithstanding any other provision of this 
Section 5.2, if there is a net decrease in Partnership Minimum 
Gain during any Fiscal Year, each Member shall be specially 
allocated items of Company income and gain for such Fiscal Year 
(and, if necessary, subsequent Fiscal Years) in an amount equal 
to such Member's share of the net decrease in Partnership Minimum 
Gain, determined in accordance with Treas. Regs. 
Section 1.704-2(g).  Allocations pursuant to the previous 
sentence shall be made in proportion to the respective amounts 
required to be allocated to each Member pursuant thereto.  The 
items to be so allocated shall be determined in accordance with 
Treas. Regs. Sections 1.704-2(f)(6) and 1.704-2(j)(2).  This 
Section 5.2(c) is intended to comply with the minimum gain 
chargeback requirement in Treas. Regs. Section 1.704-2(f) and 
shall be interpreted consistently therewith.

(d) 	Except as otherwise provided in Treas. Regs. 
Section 1.704-2(i)(4), notwithstanding any other provision of 
this Section 5.2, if there is a net decrease in Partner 
Nonrecourse Debt Minimum Gain attributable to a Partner 
Nonrecourse Debt during any Fiscal Year, each Member who has a 
share of the Partner Nonrecourse Debt Minimum Gain attributable 
to such Partner Nonrecourse Debt, determined in accordance with 
Treas. Regs. Section 1.704-2(i)(5), shall be specially allocated 
items of Company income and gain for such Fiscal Year (and, if 
necessary, subsequent Fiscal Years) in an amount equal to such 
Member's share of the net decrease in Partner Nonrecourse Debt 
Minimum Gain attributable to such Partner Nonrecourse Debt, 
determined in accordance with Treas. Regs. Section 1.704-2(i)(4). 
 Allocations pursuant to the previous sentence shall be made in 
proportion to the respective amounts required to be allocated to 
each Member pursuant thereto.  The items to be so allocated 
shall be determined in accordance with Treas. Regs. Sections 
1.704-2(i)(4) and 1.704-2(j)(2).  This Section 5.2(d) is intended 
to comply with the minimum gain chargeback requirement in 
Treas. Regs. Section 1.704-2(i)(4) and shall be interpreted 
consistently therewith.

(e) 	Nonrecourse Deductions for any Fiscal Year shall be 
specially allocated to the Members in the proportions they share 
Net Profits pursuant to Section 5.1(a)(ii).

(f) 	Any Partner Nonrecourse Deductions for any Fiscal Year 
shall be specially allocated to each Member who bears the 
economic risk of loss with respect to the Partner Nonrecourse 
Debt to which such Partner Nonrecourse Deductions are 
attributable in accordance with Treas. Regs. 
Section 1.704-2(i)(1).

(g) 	To the extent an adjustment to the adjusted tax basis 
of any Company asset pursuant to Code Section 734(b) or Code 
Section 743(b) is required, pursuant to Treas. Regs. Section 
1.704-1(b)(2)(iv)(m)(2) or Section 1.704-1(b)(2)(iv)(m)(4), to be 
taken into account in determining Capital Accounts as the result 
of a distribution to a Member in complete liquidation of its 
interest in the Company, the amount of such adjustment to Capital 
Accounts shall be treated as an item of gain (if the adjustment 
increases the basis of the asset) or loss (if the adjustment 
decreases such basis) and such gain or loss shall be specially 
allocated to the Member in accordance with its interests in the 
Company in the event that Treas. Regs. Section 1.704-
1(b)(2)(iv)(m)(2) applies, or to the Member to whom such 
distribution was made in the event that Treas. Regs. 
Section 1.704-1(b)(2)(iv)(m)(4) applies.

(h) 	The allocations set forth in Sections 5.1(b)(ii), 
5.2(a), 5.2(b), 5.2(c), 5.2(d), 5.2(e), 5.2(f), and 5.2(g) (the 
"Regulatory Allocations") are intended to comply with certain 
requirements of the Treasury Regulations.  It is the intent of 
the Members that, to the extent possible, all Regulatory 
Allocations shall be offset either with other Regulatory 
Allocations or with special allocations of other items of Company 
income, gain, loss or deduction pursuant to this Section 5.2(h). 
 Therefore, notwithstanding any other provision of this Article V 
(other than the Regulatory Allocations), the Members Committee 
shall make such offsetting special allocations of Company income, 
gain, loss or deduction in whatever manner they determine 
appropriate so that, after such offsetting allocations are made, 
each Member's Capital Account balance is, to the extent possible, 
equal to the Capital Account balance such Member would have had 
if the Regulatory Allocations were not part of the Agreement and 
all Company items were allocated pursuant to Sections 5.1(a) and 
5.1(b).  In exercising their discretion under this 
Section 5.2(h), the Members Committee shall take into account 
future Regulatory Allocations under Sections 5.2(c) and 5.2(d) 
that, although not yet made, are likely to offset other 
Regulatory Allocations previously made under Sections 5.2(e) and 
5.2(f).

(i) 	For purposes of determining the Net Profits, Net 
Losses, or any other items allocable to any period, Net Profits, 
Net Losses, and any such other items shall be determined on a 
daily, monthly, or other basis, as determined by the Members 
Committee using any permissible method under Code Section 706 and 
the Treasury Regulations thereunder.

(j) 	The Members are aware of the income tax consequences of 
the allocations made by this Article V and hereby agree to be 
bound by the provisions of this Article V in reporting their 
shares of Company income and loss for income tax purposes.

(k) 	Solely for purposes of determining a Member's 
proportionate share of the "excess nonrecourse liabilities" of 
the Company within the meaning of the Treas. Regs. Section 
1.752-3(a)(3), each Member's interest in the Company's profits 
shall be such Member's Company Interest.

(l) 	To the extent permitted by Treas. Regs. Section 
1.704-2(h)(3), the Members shall endeavor to treat distributions 
as having been made from the proceeds of a Nonrecourse Liability 
or a Partner Nonrecourse Debt only to the extent that such 
distributions would cause or increase an Adjusted Deficit Capital 
Account for any Member.

(m) 	In accordance with Code Section 704(c) and the Treasury 
Regulations thereunder, income, gain, loss, and deduction with 
respect to any property contributed to the capital of the Company 
shall, solely for tax purposes, be allocated among the Members so 
as to take account of any variation between the adjusted basis of 
such property to the Company for Federal income tax purposes and 
its initial Gross Asset Value, using the method described in 
Treas. Reg. Sec. 1.704-3(c).

	The Gross Asset Value of property other than goodwill 
initially contributed to capital of the Company shall equal such 
property's adjusted tax basis for Federal income tax purposes as 
of January 1, 1996.  The Gross Asset Value of goodwill 
contributed to the capital of the Company by each Member shall 
equal the excess of the value attributed to such Member's initial 
Capital Contribution in Section 3.1 of this Agreement (increased 
by liabilities of the Member assumed by the Company) over the 
Gross Asset Value of property other than goodwill contributed by 
the Member.  Goodwill shall be recovered by the Company over 10 
years using the straight-line method.  The tax departments of HSB 
and TDCC shall integrate the property systems of Radian and DEI 
and shall calculate the Gross Asset Value of goodwill contributed 
by the Members within sixty (60) days of the Closing Date.

	In the event the Gross Asset Value of any Company asset is 
adjusted pursuant to paragraph (ii) of the definition thereof, 
subsequent allocations of income, gain, loss, and deduction with 
respect to such asset shall take account of any variation between 
the adjusted basis of such asset for Federal income tax purposes 
and its Gross Asset Value in the manner provided in Treas. Regs. 
Section 1.704-3(a)(6).

	Any elections or other decisions relating to such 
allocations shall be made by the Tax Matters Partner in any 
manner that reasonably reflects the purpose and intention of this 
Agreement.  Allocations pursuant to this Section 5.2(m) are 
solely for purposes of Federal, state, and local taxes and shall 
not affect, or in any way be taken into account in computing, any 
Member's Capital Account or share of Net Profits, Net Losses, 
other items, or distributions pursuant to any provision of this 
Agreement.

(n) 	Gross income attributable to corporations in which the 
Company owns an interest shall be allocated in the following 
priority:

		(i)   gross income attributable to dividends received 
by the Company from its subsidiaries after December 31, 1999 
shall be allocated to the Members in proportion to their 
Company Interests as of December 31, 1999, until the amount 
of gross income allocated with respect to such dividends 
from each such subsidiary pursuant to this clause (i) equals 
the net increase, if any, in the retained earnings and 
profits (for U.S. tax purposes) of the distributing 
subsidiary for the four-year period ending December 31, 1999 
to the extent such earnings and profits were not included in 
the Net Profits of the Company for such four-year period; 
and

		(ii)	 all other gross income resulting from any 
dividends or resulting from the application of Code 
Section 951 shall be included in Net Profits and allocated 
pursuant to Section 5.1.

(o) 	For each of the years 1996 and 1997 respectively, if 
the Net Profits allocated to Radian pursuant to Section 5.1(a) 
for such year are less than the lesser of Preferred Accounting 
Earnings for such year or Accounting Earnings for such year, then 
Radian shall be allocated an amount of gross income so that the 
net amount of Net Profits, Net Losses and gross income allocated 
to Radian at least equals the lesser of Preferred Accounting 
Earnings for such year or Accounting Earnings for such year. 

(p) 	DEI shall be allocated an aggregate amount of gross 
income pursuant to this Section 5.2(p) such that the net amount 
of Net Profits, Net Losses and gross income allocable to DEI 
exceeds the amount that would be allocated to it without taking 
this Section 5.2(p) into account by an amount equal to 40% of the 
amount by which the Net Profits, Net Losses and gross income 
allocated to Radian was increased pursuant to Section 5.2(o).  
The amount allocated pursuant to this Section 5.2(p) shall not 
exceed 40% of the sum of the following amount calculated for 1996 
plus the following amount calculated for 1997: the excess, if 
any, of (i) the lesser of Preferred Accounting Earnings or 
Accounting Earnings over (ii) 100% of Net Profits.  Such amount 
shall be allocated to DEI ratably over a five-year period 
beginning in 1998.

V.3   Expenses of the Company.  All of the Company 
expenses shall be billed directly to and paid by the Company.  
The Company is specifically authorized to make reimbursements to 
any Member that provides goods, materials or services used for or 
by the Company provided such are authorized in advance in writing 
and are in accordance with the Company's annual budget.  In no 
event shall any amount charged to the Company as a reimbursable 
expense by any Member exceed the amount that the Company would be 
required to pay to independent parties for comparable goods, 
materials or services.  Reimbursement for expenses shall be made 
to any Member entitled to such reimbursement regardless of 
whether any distributions are made to the Members under the 
provisions of this Article V.

V.4   Distributions. 

	(a)	Except as provided in Sections 5.6 and 9.6, 

		(i)   and except as provided in clauses (ii) and (iii) 
below, all distributions of cash and/or other Property shall 
be made to the Members pro rata in proportion to the 
respective Company Interest of the Members on the record 
date of the distribution, 

		(ii)  and except as provided in clause (iii) below, 
distributions of cash or other Property, the record date of 
which is after December 31, 1999, shall continue to be 
distributed to the Members pro rata in proportion to the 
respective Company Interest of the Members as of 
December 31, 1999, until an aggregate amount of cash or 
other Property has been distributed pursuant to 
Section 5.4(a)(i), this Section 5.4(a)(ii) and Section 5.6 
equal to 80% of the sum of (A) the excess of the Net Profits 
allocated pursuant to Section 5.1 over the Net Losses 
allocated pursuant to Section 5.1 and (B) the excess of any 
items in the nature of income or gain which were specially 
allocated pursuant to Section 5.2 over any items in the 
nature of deduction or loss that were allocated pursuant to 
Section 5.2 (other than allocations solely for tax purposes 
pursuant to Section 5.2(m)), in the case of (A) and (B), 
with respect to periods ending before January 1, 2000, and 

		(iii) distributions of cash or other Property, the 
record date of which is after December 31, 1999, shall be 
distributed to the Members pro rata in proportion to the 
respective Company Interest of the Members as of 
December 31, 1999, until the aggregate amount of cash or 
other Property distributed pursuant to this clause (iii) 
equals 80% of the aggregate amount of gross income allocated 
pursuant to Section 5.2(n)(i) of this Agreement after 
December 31, 1999 (net of deemed taxes treated as a dividend 
received under Code Section 78). 

	(b)	Except as provided below and in Section 5.5, 
distributions of Net Cash Flow and Property shall be made 
whenever such distributions are permitted under the Company's 
strategic business plan.  The Members presently intend to operate 
the Company to maximize distributions by the Company to the 
Members, to the extent consistent with prudent operation of the 
Company, while permitting the Company to retain sufficient 
capital resources for the rapid growth of the Company in 
accordance with its strategic business plan; provided, however, 
that no distribution shall be made if in the sole discretion of 
the Members Committee such proposed distribution would materially 
impair the ability of the Company to comply with its strategic 
business plan or the amount of such distribution is needed for 
the operations of the Company.  

	(c)	All amounts withheld pursuant to the Code or any 
provisions of state or local tax law from any payment or 
distribution to the Members from the Company shall be treated as 
amounts distributed to the relevant Member or Members pursuant to 
this Section 5.4.  

	(d)	Notwithstanding anything to the contrary in this 
Agreement, no distribution shall be made to a Member if such 
Member has an Adjusted Deficit Capital Account, or if such 
distribution would cause such Member to have an Adjusted Deficit 
Capital Account, but such undistributed amounts shall be 
distributed to such Members as soon as and to the extent that 
such distributions can be made without causing such Member to 
have an Adjusted Deficit Capital Account.

V.5   Limitation Upon Distributions.  Distributions shall be 
declared or paid only if, after giving effect to the 
distribution, the assets of the Company are in excess of all 
liabilities of the Company, except liabilities to Members on 
account of their contributions and liabilities for which the 
recourse of creditors is limited to specified Property of the 
Company.  The fair value of Property that is subject to a 
liability for which the recourse of creditors is limited shall be 
included in the assets of the Company only to the extent the fair 
value of that Property exceeds that liability.  Notwithstanding 
the foregoing, except as provided in Section 5.6, it is the 
current expectation of the Members that no distribution shall be 
declared or paid prior to January 1, 1999, and then only if such 
distribution is in compliance with this Section 5.5.

V.6   Distributions to Cover Taxes.  The Company shall make 
the following distributions of cash:

(a) 	by April 15th of each year, the Company shall 
distribute to each Member cash pursuant to this Section 5.6(a) so 
that the total amount of cash and/or other Property distributed 
to such Member pursuant to any provision of this Article 5 other 
than Section 5.6(e) since January 1 of such year at least equals 
the product of (i) such Member's Company Interest for such year, 
multiplied by (ii) the highest marginal federal income tax rate 
effective for corporations as of January 1 of such year, 
multiplied by (iii) the total projected federal taxable income to 
be reported by the Company with respect to such year, multiplied 
by (iv) 25%; provided, that this Section 5.6(a) shall not apply 
to DEI for the years 1996 or 1997.

(b) 	by June 15th of each year, the Company shall distribute 
to each Member cash pursuant to this Section 5.6(b) so that the 
total amount of cash and/or other Property distributed to such 
Member pursuant to any provision of this Article 5 other than 
Section 5.6(e) since January 1 of such year at least equals the 
product of (i) such Member's Company Interest for such year, 
multiplied by (ii) the highest marginal federal income tax rate 
effective for corporations as of January 1 of such year, 
multiplied by (iii) the total projected federal taxable income to 
be reported by the Company with respect to such year, multiplied 
by (iv) 50%; provided, that this Section 5.6(b) shall not apply 
to DEI for the years 1996 or 1997.

(c) 	by September 15th of each year, the Company shall 
distribute to each Member cash pursuant to this Section 5.6(c) so 
that the total amount of cash and/or other Property distributed 
to such Member pursuant to any provision of this Article 5 other 
than Section 5.6(e) since January 1 of such year at least equals 
the product of (i) such Member's Company Interest for such year, 
multiplied by (ii) the highest marginal federal income tax rate 
effective for corporations as of January 1 of such year, 
multiplied by (iii) the total projected federal taxable income to 
be reported by the Company with respect to such year, multiplied 
by (iv) 75%; provided, that this Section 5.6(c) shall not apply 
to DEI for the years 1996 or 1997.

(d) 	by December 15th of each year, the Company shall 
distribute to each Member cash pursuant to this Section 5.6(d) so 
that the total amount of cash and/or other Property distributed 
to such Member pursuant to any provision of this Article 5 other 
than Section 5.6(e) since January 1 of such year at least equals 
the product of (i) such Member's Company Interest for such year, 
multiplied by (ii) the highest marginal federal income tax rate 
effective for corporations as of January 1 of such year, 
multiplied by (iii) the total projected federal income tax to be 
reported by the Company with respect to such year; provided, that 
this Section 5.6(d) shall not apply to DEI for the years 1996 or 
1997.

(e) 	Each year, within ten (10) days after the time the 
Internal Revenue Service Form 1065 Schedule K-1 is delivered to 
the Members, the Company shall distribute cash to each Member 
pursuant to this Section 5.6(e) in an amount equal to any excess 
of (i) the product of (A) the taxable income allocated to such 
Member as shown on the Internal Revenue Service Form 1065 
Schedule K-1 delivered to such Member with respect to the 
previous year, multiplied by (B) the highest marginal federal 
income tax rate effective for corporations on income earned in 
the previous year (blended if necessary to reflect any change in 
the highest marginal rate), over (ii) the total amount of cash 
and/or other Property distributed to such Member pursuant to any 
provision of this Article 5 other than Section 5.6(e) during the 
previous year. 


ARTICLE VI 

MANAGEMENT RIGHTS, DUTIES AND POWERS OF THE REPRESENTATIVES

VI.1   Management.  (a)  It shall be the duty and 
responsibility of the Members Committee solely and exclusively to 
manage and control the business and affairs of the Company, and, 
subject to Section 6.10, all decisions regarding the business and 
affairs of the Company shall be made by the Members Committee.  
Except as provided in this Agreement, each Representative shall 
have all the rights and powers of a Representative as provided in 
the Act and as otherwise provided by law, and any action taken by 
a Representative in the manner provided for in this Agreement 
shall constitute the act of and serve to bind the Company.  The 
Members Committee may delegate its authorities and responsibi-
lities for management of the business affairs of the Company to 
third parties, but such delegation shall not relieve the Members 
Committee of any of its obligations under this Agreement.  In 
furtherance of this right of delegation, the Members Committee 
may appoint and authorize officers of the Company to act on 
behalf of the Company with such power and authority as the 
Members Committee may delegate in writing to such Member.  The 
initial officers of the Company, and their duties, are set forth 
on Schedule 6.1 to this Agreement.  Subject to Section 6.10, the 
Members Committee is hereby granted (i) the right, power and 
authority to do on behalf of the Company all things which, in its 
judgment, are necessary, proper or desirable to carry out the 
aforementioned duties and responsibilities, including but not 
limited to the right, power and authority from time to time to 
incur Company expenses; to employ and dismiss from employment any 
and all employees, agents, independent contractors, attorneys and 
accountants; to establish employee benefits plans; to enter into 
leases for real or personal property; to purchase equipment; and 
to manage all other aspects of running the business of the 
Company all in accordance with any authorization policy adopted 
by the Members Committee; and (ii) such other rights, powers and 
authorities of a manager as provided in the Act and as otherwise 
provided by law.

(a) 	Except as set forth in Section 6.10, the Members 
Committee shall retain the decision-making authority for the 
Company.  Notwithstanding the foregoing, it is the express 
intention of the Members that the Members Committee manage the 
affairs of the Company so as to achieve, to the extent consistent 
with prudent operation of the Company, the Preferred Accounting 
Earnings for each of Fiscal Years 1996 and 1997.  

VI.2   No Management by Members.  Except as otherwise 
provided in this Agreement, no Member shall take part in the day-
to-day management, or the operation or control of the business 
and affairs of the Company.  Except as expressly delegated by the 
Members Committee, no Member shall be an agent of the Company or 
have any right, power or authority to transact any business in 
the name of the Company or to act for or on behalf of the 
Company.

VI.3   Number, Qualification and Tenure of Representatives.  
The Members Committee shall have as few as three and as many as 
eleven members, as established from time to time by resolution of 
the Members Committee.  Initially the Members Committee shall 
consist of seven (7) members, four (4) of whom shall be DEI 
Representatives and three (3) of whom shall be Radian 
Representatives.  If the Members Committee shall increase or 
decrease the number of members on the Members Committee, then the 
composition of the Members Committee of DEI and Radian 
Representatives shall as closely as possible reflect the Member's 
respective Company Interest at that time; provided, however, 
that, at all times, there shall be a majority of DEI 
Representatives on the Members Committee.  All DEI 
Representatives on the Members Committee shall be employees of 
DEI or one or more of its Affiliates, and all Radian 
Representatives on the Members Committee shall be employees of 
Radian or its Affiliates.  A DEI Representative shall serve as 
Chair of the Members Committee.  DEI and Radian shall, within ten 
(10) days of the date of this Agreement, notify each other in 
writing of the identity of the DEI Representatives and the Radian 
Representatives, respectively.  DEI, within ten (10) days of the 
date of this Agreement, shall notify Radian in writing as to 
which of its DEI Representatives is to initially serve as Chair 
of the Members Committee.  Any Representative shall continue to 
serve in such capacity until such Member shall have notified the 
other Members in writing of his or her replacement.  DEI and 
Radian may, by written notice to the other, designate a person to 
serve as an alternate for each DEI Representative and each Radian 
Representative, respectively (each alternate to a DEI Representa-
tive being referred to in this Agreement as a "DEI Alternate" 
and, collectively, as the "DEI Alternates"; each alternate to a 
Radian Representative being referred to in this Agreement as a 
"Radian Alternate" and, collectively, as the "Radian Alternates"; 
and the DEI Alternates and the Radian Alternates being 
collectively referred to in this Agreement as the "Alternates"), 
and such DEI Alternate or Radian Alternate, as the case may be, 
shall be entitled, in the absence of such DEI Representative or 
Radian Representative, to attend meetings, to have such 
Alternate's presence counted for purposes of establishing a 
quorum and to vote on behalf of such DEI Representative or Radian 
Representative at any meeting of the Members Committee.  Each 
Member, in dealing with DEI Representatives or Alternates or the 
Radian Representatives or Alternates, as the case may be, shall 
be entitled to rely conclusively upon the power and authority of 
such Representatives or Alternates to bind DEI or Radian, as the 
case may be, with respect to all matters unless and until it 
receives notice to the contrary in writing from DEI or Radian, as 
the case may be.  To the fullest extent permitted by law, each 
Representative and Alternate shall be deemed the agent of the 
Member which appointed such Person a Representative or Alternate, 
and such Representative or Alternate shall not be deemed an agent 
or a sub-agent of the Company or the other Members and shall have 
no duty (fiduciary or otherwise) to the Company or the other 
Members.  Each Member, by execution of this Agreement, agrees to, 
consents to, and acknowledges the delegation of powers and 
authority to such Representatives and Alternates, and the actions 
and decisions of such Representatives and Alternates within the 
scope of their respective authority as provided in this 
Agreement.

VI.4   Meetings.  The Members Committee shall hold regular 
meetings at least once during each Fiscal Year on such date or 
dates as specified by the Members Committee.  Other regular 
meetings shall be held at such time and at such place as shall 
from time to time be determined by the Members Committee.  
Meetings of the Members Committee may be held by conference 
telephone or other means of communication by means of which all 
participants can hear each other.  Participation in such meeting 
in such manner shall constitute attendance and presence in person 
at the meeting of the person or persons so participating.  No 
notice of the regular annual meeting need be given.  Special 
meetings of the Members Committee may be called by the Chairman 
of the Members Committee or by any Member on at least two (2) 
business days' notice to the other Member.  Attendance by any DEI 
Representative or Radian Representative or any DEI Alternate or 
Radian Alternate at any meeting of the Members Committee shall 
constitute an effective waiver of any required prior notice to 
DEI or Radian, as the case may be, of such meeting, unless such 
attendee declares at the onset of such meeting that such 
attendee's attendance at such meeting is solely for the purpose 
of contesting the deficiency of any required notice for the 
meeting.  The Chairman of the Members Committee shall, (i) with 
reasonable advance notice (which in the case of regular meetings 
shall not be less than five (5) days), prepare and distribute an 
agenda for each meeting of the Members Committee, (ii) organize 
and conduct such meeting and (iii) prepare and distribute minutes 
of such meeting.  Any Member may propose in advance topics for 
the agenda or, subject to Section 6.5, raise topics which are not 
on the agenda for such meeting.   Each Representative or 
Alternate of each of DEI and Radian may bring one or more other 
advisors to any meeting; provided, that such advisors shall not 
have the right to vote on any matter brought before the Members 
Committee; and provided further, that the Representatives or 
Alternates of either of DEI or Radian shall have the right to 
call executive sessions of the Members Committee and to exclude 
any Person not a Representative or Alternate from such executive 
session.   

VI.5   Quorum and Voting.  Meetings of the Members Committee 
may only be held when a quorum is present (whether present in 
person or by telephone or other means of telecommunication).  A 
quorum of the Members Committee shall be comprised of a majority 
of Representatives or Alternates (or any combination thereof in 
accordance with Section 6.4) of the full Members Committee as 
constituted pursuant to Section 6.3 of this Agreement of which at 
least a majority of such majority must be DEI Representatives or 
DEI Alternates; provided, however, that if a Radian 
Representative or Radian Alternate is not present at any meeting 
of the Members Committee then, at such meeting, only such 
business as set forth on the agenda for such meeting may be 
considered and voted upon.  The affirmative vote of a majority of 
the Members Committee at a meeting at which a quorum is present 
being entitled to vote at any such meeting must be obtained in 
connection with the decision of any matter being considered by 
the Members Committee.  If a quorum is not present, the 
Representatives and Alternates present may adjourn the meeting 
without notice, other than an announcement at the meeting, until 
a quorum shall be present.

VI.6   Committees.  The Members Committee may appoint from 
among its members an Executive Committee, an Audit Committee, a 
Compensation Committee and other committees, composed of two or 
more Representatives (one of which must be a Radian 
Representative or Radian Alternate), to serve at the pleasure of 
the Members Committee.  Except as expressly limited by applicable 
law or this Agreement, each such committee shall exercise such 
powers and authority as the Members Committee may determine and 
specify in a writing designating such committee or any amendment 
thereto.  Unless otherwise specified in the writing designating 
the committee, a majority of the members of such committee may 
elect its Chair, fix its rules of procedure, fix the time and 
place of meetings and specify what notice of meetings, if any, 
shall be given.  Written records of the proceedings of any 
committee shall be maintained and furnished to the Members 
Committee.

VI.7   Action Without Meeting.  Any action required or 
permitted to be taken at a meeting of the Members Committee, or 
of any committee thereof, may be taken without a meeting if all 
members of the Members Committee, or committee thereof, consent 
in writing to such action.

VI.8   Compensation.  The Members Committee shall not receive 
any compensation, but shall be reimbursed by the Company for 
reasonable expenses associated with attendance at meetings.

VI.9   Rules of Procedure.  The Members Committee may from 
time to time adopt detailed rules and procedures not inconsistent 
with this Agreement for the management of the business of the 
Company.

VI.10   Certain Transactions.

(a) 	Except as otherwise set forth in this Agreement, the 
Company shall not engage in any of the following actions without 
the prior affirmative vote of a majority of the Members Committee 
present at a meeting, which majority shall include at least one 
Radian Representative or Radian Alternate:

(i)     the dissolution or winding-up of the Company; 
provided, however, that nothing in this Section 6.10(a)(i) 
shall be construed to conflict with the requirement in 
Section 9.1(a) of this Agreement that a Bankruptcy of any 
Member shall cause the dissolution of the Company;

(ii)   the sale by the Company of any Company Interests 
or derivative rights relating to such Company Interests;

(iii)   changing the nature of the business conducted by 
the Company or conducting any activity that is outside the 
business purposes of the Company, as set forth in 
Section 2.3, or otherwise in contravention of this 
Agreement; 

(iv)   amending this Agreement or the Certificate of 
Formation of the Company;

(v)    prior to January 1, 1999, any change in the 
accounting policies or procedures of the Company set forth 
on Schedule 6.10(a)(v), except for any such changes in 
accounting policies and procedures required by reason of a 
concurrent change in GAAP, government cost accounting 
standards or other applicable governmental requirements; 

(vi)	  (A) the amendment or modification of the 
transfer pricing provision in any contract between the 
Company and TDCC or any of TDCC's Affiliates as of the 
Closing Date or (B) the entry into any contract between the 
Company or any Subsidiary of the Company, on the one hand, 
and any Member or any of its Affiliates, on the other hand, 
except as a result of a competitive bidding process or on 
terms substantially similar to, or more favorable to the 
Company or such Subsidiary than, those that could be entered 
into by the Company in a similar transaction with 
unaffiliated third parties;

(vii)  amending the Company's policy regarding earnings 
distributions to Members or the declaration of dividends;

(viii) the purchase or other acquisition of another 
business; provided, however, that such consent shall not be 
required if the aggregate payments involved in such 
transaction and in all such transactions during the previous 
12-month period do not require an additional capital 
contribution by Radian in excess of $10 million; or

(ix)   sell all, or substantially all, of the Company's 
assets or enter into any other arrangement in which the 
Company's business is transferred to a third party.

In connection with any of the proposed actions set forth in this 
Section 6.10(a), the officers of the Company shall keep the 
Members Committee informed of the Company's business activities 
and provide, or cause to be provided, to the Members Committee 
such information as may be reasonably necessary for the Members 
Committee to make a prudent judgment to approve or disapprove the 
proposed action.

(b) 	The Members Committee shall keep the Members informed 
of the Company's business activities.  In addition to providing 
the periodic reports required by Section 7.1 of this Agreement, 
the Members Committee shall promptly advise, or cause to be 
advised, the Members of any material developments in the 
Company's business, including, without limitation, prior notice 
of the terms and conditions of proposed significant investments, 
acquisitions or dispositions, or other significant transactions 
involving the Company.

(c) 	Except as otherwise provided hereunder or required 
under the Act, whenever it is stated in this Agreement, including 
without limitation, this Section 6.10, that an action of the 
Company or of the Members Committee on behalf of the Company or 
any other action under this Agreement requires the consent or 
agreement of or waiver by the Members, such action shall require 
the consent or agreement of each Member.

VI.11   Right to Rely on Authority of the Representatives.  
Any action taken by the Representatives in their capacity as 
such, acting on behalf of the Company pursuant to the authority 
conferred on them in this Agreement, shall be binding on the 
Company.  In no event shall any Person dealing with the 
Representatives with respect to the conduct of the affairs of the 
Company be obligated to ascertain that the terms of this 
Agreement have been complied with, or be obligated to inquire 
into the necessity or expediency of any act or action of the 
Representatives.  Every contract, agreement, promissory note or 
other instrument or document executed by a Representative with 
respect to any property of the Company or the conduct of its 
affairs, in his/her capacity as a Representative acting on behalf 
of the Company pursuant to the authority conferred on him/her in 
this Agreement, shall be conclusive evidence in favor of any and 
every Person relying thereon or claiming under this Agreement 
that (i) at the time of the execution and/or delivery of such 
instrument or document, this Agreement was in full force and 
effect, (ii) such instrument or document was duly executed in 
accordance with the terms and provisions of this Agreement and is 
binding upon the Company, and (iii) the Representative was duly 
authorized and empowered to execute and deliver any and every 
such instrument or document for and on behalf of the Company.  
Nothing set forth in this Section 6.11 shall be construed as 
relieving the Representatives from liability to the Company or 
the Members for breach of any of the provisions of this 
Agreement, or for acting or failing to act in such manner as 
constitutes an exception from indemnification provisions 
contained in Section 6.13.

VI.12   Responsibility of Members and Representatives.  No 
Member or Representative (or their Affiliates) shall have any 
fiduciary or other duty or responsibility to the Company, or to 
any other Member or Representative (or their Affiliates), except 
as expressly provided in this Agreement or for acts or omissions 
that constitute willful misconduct or constitute an intentional 
criminal act.  No Representative or Alternate shall be liable to 
the Company or any Member or other Representative or Alternate 
(or their Affiliates) because of a decision by the Members 
Committee to have the Company engage in, or not engage in, a 
particular business, activity or project.

VI.13   Indemnification.  (a)  The Company shall indemnify, 
to the full extent permitted by the laws of the State of 
Delaware, any person who was or is a defendant or is threatened 
to be made a defendant to any threatened, pending or completed 
action, suit or proceeding, whether civil, criminal, 
administrative or investigative, by reason of the fact that such 
person (i) is or was a Member, Representative, Alternate, 
officer, employee or agent of the Company, or (ii) is or was a 
Member, Representative, Alternate, officer, employee or agent of 
the Company and is or was serving at the request of the Company 
as a Member, Representative, Alternate, director, officer, 
employee or agent of another corporation, limited liability 
company, partnership, joint venture, trust or other enterprise, 
against expenses (including attorneys' fees), judgments, fines 
and amounts paid in settlement actually and reasonably incurred 
by such person in connection with such action, suit or 
proceeding, provided that the commission or omission which formed 
the basis of such action, suit or proceeding does not constitute 
gross negligence or willful misconduct or constitute an 
intentional criminal act on the part of such person.  Any repeal, 
amendment or modification of this Section 6.13 shall not affect 
any rights or obligations then existing between the Company and 
any then incumbent or former Member, Representative, Alternate, 
officer, employee or agent with respect to any state of facts 
then or theretofore existing or any action, suit or proceeding 
theretofore or thereafter brought based in whole or in part upon 
such state of facts.

(a) 	Expenses incurred by any current or former Member, 
Representative, Alternate, officer, employee or agent in 
defending or investigating a threatened or pending action, suit 
or proceeding shall be paid by the Company in advance of the 
final disposition of such action, suit or proceeding, upon 
receipt of an undertaking by or on behalf of the Member, 
Representative, Alternate, officer, employee or agent to repay 
such amount if it ultimately shall be determined that the Member, 
Representative, Alternate, officer, employee or agent is not 
entitled to be indemnified by the Company as authorized in this 
Section 6.13.

(b) 	The indemnification and advancement of expenses 
mandated or permitted by, or granted pursuant to, this 
Section 6.13 shall not be deemed exclusive of any other rights to 
which those seeking indemnification or advancement of expenses 
may be entitled under any agreement, contract, vote of Members or 
disinterested Representatives (or Alternates) or pursuant to the 
direction (howsoever embodied) of any court of competent 
jurisdiction or otherwise both as to action by the person in an 
official capacity and as to action in another capacity while 
holding such office.  The provisions of this Article VI shall not 
be deemed to preclude the indemnification of any person who is 
not specified in subsections (a) and (b) above, but whom the 
Company has the power or obligation to indemnify under the laws 
of the State of Delaware or otherwise.

(c) 	The Company may purchase and maintain insurance on 
behalf of any person who is or was a Member, Representative, 
Alternate, officer, employee or agent of the Company, or is or 
was serving at the request of the Company as a Member, 
Representative, Alternate, director, officer, employee or agent 
of another corporation, limited liability company, partnership, 
joint venture, trust or other enterprise against any liability 
asserted against and incurred by such person in any such 
capacity, or arising out of the person's status as such, whether 
or not the Company would have the power or the obligation to 
indemnify such person of the Company against such liability under 
the provisions of this Section 6.13.

(d) 	The indemnification and advancement of expenses 
provided by, or granted pursuant to, this Section 6.13 shall 
continue as to a person who has ceased to be a Member, 
Representative, Alternate, officer, employee or agent of the 
Company and shall inure to the benefit of the heirs, executors 
and administrators of such person.

VI.14   Designation of Tax Matters Partner; Expenses 
Regarding Tax Matters; Filing of Tax Returns.

(a) 	DEI is hereby designated as the "Tax Matters Partner" 
under Section 6231(a)(7) of the Code.  During any Company income 
tax audit or other income tax controversy with any governmental 
agency, the Tax Matters Partner shall keep the Members informed 
of all material facts and developments on a timely basis, and 
shall consult with the Members at their request.  The Tax Matters 
Partner shall not be authorized to enter into a settlement which 
binds the Members or the Company  without the advance written 
consent of the Member, except for settlements for de minimis 
amounts (e.g., not exceeding $100,000 in the aggregate).  The Tax 
Matters Partner shall take all actions necessary to cause each 
qualifying Member to be a "notice partner" within the meaning of 
Sections 6223(a) and 6231(a)(8) of the Code.

(b) 	All reasonable expenses incurred by the Tax Matters 
Partner with respect to any tax matter which does or may affect 
the Company, or any Member by reason thereof, including but not 
limited to expenses incurred by the Tax Matters Partner acting in 
its capacity as Tax Matters Partner in connection with Company-
level administrative or judicial tax proceedings, shall be paid 
for out of Company assets.  If the Members are permitted by the 
Company or permitted under the Code to participate in Company-
level administrative or judicial tax proceedings, the Company 
shall be responsible for all expenses incurred by them in 
connection with such participation.  The cost of any adjustments 
to the Members and the cost of any resulting audits or adjust-
ments of the Members' tax returns will be borne solely by the 
Members and the cost of any adjustments to the Company and the 
cost of any resulting audits or adjustments of the Company's tax 
returns will be borne solely by the Company.

(c) 	The Tax Matters Partner shall prepare and timely file 
all tax returns of the Company.  The Company shall reimburse the 
Tax Matters Partner for the reasonable costs of preparing and 
filing the tax returns of the Company.






ARTICLE VII 

BOOKS AND RECORDS; REPORTS
TO MEMBERS; CAPITAL ACCOUNT MAINTENANCE

VII.1   Books; Reports.  The Company shall maintain or cause 
to be maintained separate, full and accurate books and records of 
the Company, and the Members or any authorized representative of 
the Members will have the right to inspect, examine and copy the 
same, and to meet with employees of the Company responsible for 
preparing the same, at reasonable times during business hours and 
upon reasonable notice.  In addition, the Members Committee shall 
provide or shall cause to be provided to each Member, its 
representatives and an independent accounting firm (if any) 
designated by the Member, reasonable access to all such books and 
records, during which the Member or such accounting firm may 
conduct an audit of the Company; provided, however, that any such 
audit shall be conducted at the sole expense of the Member.

	Within eight (8) business days after the last day of each 
fiscal quarter (or at an earlier date if requested by a Member), 
the Company will prepare and deliver to the Members financial 
statements in forms reasonably requested by each Member.  The 
Members Committee shall also prepare and distribute, or cause to 
be prepared and distributed, to each Member within sixty (60) 
days after the last day of each fiscal quarter, or as soon 
thereafter as is practicable, a report which includes (i) a 
statement showing results of operations and changes in net assets 
prepared on an accrual basis, for such fiscal quarter, (ii) a 
statement showing Net Cash Flow for such fiscal quarter, (iii) a 
statement showing computation of related party fees and Member 
distributions, and (iv) a statement describing any event of 
default and any known event which, with the giving of notice or 
lapse of time or both, would constitute an event of default under 
any indebtedness of the Company.  The Members Committee shall 
also prepare and distribute, or cause to be prepared and dis-
tributed, to each Member within forty-five (45) days after the 
end of each fiscal year, or as soon thereafter as is practicable, 
a report with respect to the Company which includes the items set 
forth in (i), (ii) and (iii) of the foregoing sentence with 
respect to such fiscal year.  Such annual report shall be audited 
by, and accompanied by an auditor's report containing the opinion 
of, the Company's independent public accountants (which opinion, 
if qualified, shall state the basis for such qualification).  The 
Members Committee shall also use its reasonable best efforts to 
cause the auditors to provide an annual earnings clearance within 
fifteen (15) days after the end of each fiscal year.  The costs 
of any audits or earnings clearances shall be an expense of the 
Company.

	The Members Committee shall also engage, or cause to be 
engaged, independent public accountants to report on the 
Company's consolidated financial statements in accordance with 
GAAP.  Initially, the auditors of the Company shall be Deloitte & 
Touche LLP.

VII.2   Accounting and Fiscal Year.  The Company books and 
records shall be kept on the accrual basis.  The Company's Fiscal 
Year shall be the calendar year.  The books will be closed at the 
end of each Fiscal Year.

VII.3   Maintenance of Capital Accounts.  The Members 
Committee shall cause the Capital Accounts of the Members to be 
determined and maintained throughout the full term of the Company 
in accordance with Section 704(b) of the Code.

VII.4   Bank Accounts.  All cash funds and securities of the 
Company shall be deposited in money market, checking and savings 
accounts, certificates of deposit, bankers' acceptances, treasury 
bills or notes, or other Federal government debt securities or 
commercial paper, all of which shall be kept in the name of the 
Company in such Company custody account or accounts as shall be 
authorized by the Members Committee or such officers of the 
Company as may be delegated such authority from time to time by 
the Members Committee.  Company funds shall be used only for the 
benefit of the Company and shall not be commingled with the funds 
of any other Person.

VII.5   Insurance.  The Company shall maintain insurance of 
such types and for such amounts as are customary for Persons 
conducting businesses similar to that conducted by the Company.  
Any insurance maintained by the Company shall name the Members 
and Parents as an additional named insureds (and shall identify 
the Members' status as Members of the Company) and shall provide 
at least thirty (30) days' prior notice of change (other than an 
increase in coverage), cancellation or non-renewal to the 
Members.


ARTICLE VIII 

TRANSFER OF COMPANY INTEREST; 
RADIAN OPTION TO SELL; LIENS  

VIII.1   Transfer of Company Interest Generally.  No Member 
may assign, transfer or otherwise dispose of all or any portion 
of its Company Interest except in accordance with the terms of 
this Article VIII.  Any attempt by any Member to assign, transfer 
or otherwise dispose of all or any portion of its Company 
Interest other than in accordance with this Article VIII shall be 
null, void ab initio and of no force and effect.

VIII.2   Transfers of Company Interests.  Except as otherwise 
consented to in writing by the other Member (which consent may be 
granted or withheld in the sole and absolute discretion of any 
Member), no Member may sell, transfer or otherwise dispose of 
(collectively a "Transfer") all or any portion of its Company 
Interest.  In addition to such consent, no Member may make such a 
Transfer unless (i) such a Transfer is pursuant to a written 
agreement pursuant to which the transferee agrees to be bound by 
all of the terms of this Agreement as if it were originally a 
party to this Agreement, (ii) such a Transfer does not cause a 
termination of the Company for Federal income tax purposes and 
(iii)  such a Transfer complies with applicable Federal and state 
securities laws.

VIII.3   Radian Option to Sell.  From and including 
December 31, 1997 through December 31, 1998, Radian, at its 
option, upon written notice of not less than thirty (30) days, 
may exercise the sell option set forth in this Section 8.3.  If 
Radian gives the notice referred to in the preceding sentence, 
Radian shall have the right to require DEI to purchase, and the 
obligation to sell all, but not less than all, of Radian's 
Company Interest at a price equal to $131,327,406 plus (i) the 
Earnings Shortfall, (ii) the amount of any then outstanding 
Ordinary Loans or Member Loans made by Radian or any of its 
Affiliates (plus interest thereon), and (iii) any amounts then 
outstanding and owed by the Company to HSB under the loan 
agreement dated as of January 1, 1996 between HSB and Radian (the 
"Loan Agreement") (it being understood that Radian's rights and 
obligations under the Loan Agreement will be assigned at the 
Closing to the Company).  The "Earnings Shortfall" shall equal 
the sum of the Preferred Accounting Earnings for Fiscal Year 1996 
and Fiscal Year 1997 minus the sum of 40% of the Accounting 
Earnings of the Company (which for purposes of this Agreement 
shall never be less than zero) for Fiscal Year 1996 and Fiscal 
Year 1997, respectively; provided, however, that the Earnings 
Shortfall shall not exceed $5,000,000 in the aggregate.  If DEI 
and Radian cannot agree upon the Accounting Earnings of the 
Company within sixty (60) days after the notice referred to in 
the first sentence of this Section 8.3, either DEI or Radian may, 
by notice to the other, invoke the Appraisal Procedure.  If the 
Appraisal Procedure is required to determine the Accounting 
Earnings, the fees and expenses of such Appraisal Procedure shall 
be shared equally by DEI and Radian.  The closing of such sale 
shall take place upon the date that is within fifteen (15) days 
after the later to occur of (i) the determination of the 
Accounting Earnings in accordance with this Section 8.3 and (ii) 
compliance with any applicable legal requirements; provided, 
however, that if such sale is not in compliance with any 
applicable legal requirements, then DEI and Radian shall 
equitably adjust the arrangements set forth in this Section 8.3 
in light of what is legally possible and in compliance with any 
applicable legal requirements in order to effectuate the intent 
of the parties.  Upon the closing of such sale, DEI shall assume 
all obligations under any guarantee provided by Radian or its 
Affiliates pursuant to Section 3.5 of this Agreement in a written 
agreement mutually acceptable to DEI and Radian, and the 
Company's obligations under the Loan Agreement and obligation to 
pay Radian any amounts in connection with any Ordinary Loans or 
Member Loans shall be cancelled.  Notwithstanding any other 
provision of this Agreement, DEI may assign any of its rights and 
obligations under this Section 8.3 to TDCC or any of TDCC's 
Affiliates and Radian may assign any of its rights and 
obligations under this Section 8.3 to HSB or any of HSB's 
Affiliates.

VIII.4   Liens.  No Member may, except with the consent of 
the other Member (which consent may be granted or withheld in 
such Member's sole discretion), create or permit to exist any 
Lien on its Company Interest or any portion thereof (except (i) 
Liens for current taxes not delinquent or taxes being contested 
in good faith and by appropriate proceedings or (ii) Liens 
arising in the ordinary course of business for sums not due or 
sums being contested in good faith and by appropriate 
proceedings).  Any attempt by any Member to create or permit to 
exist any Lien (other than the Liens described in the second 
parenthetical in the immediately preceding sentence) on its 
Company Interest or any portion thereof shall be null, void ab 
initio and of no force and effect.  Notwithstanding anything to 
the contrary contained in this Agreement, if any Person obtains a 
Lien on the Company Interest, or portion thereof, of any Member 
and forecloses on such Lien, (i) the Company shall continue, (ii) 
the Person foreclosing on the Lien shall succeed to the economic 
interests of the Company Interest, or portion thereof, upon which 
it foreclosed but not the voting or other interests which 
comprise such Company Interest, or portion thereof, (iii) the 
Person foreclosing on such Lien shall not be admitted as a 
"Member" without the approval of the Members Committee and the 
consent of the other Members (which consent may be granted or 
withheld in the sole and absolute discretion of each such 
Member), and (iv) any sale or other disposition of the Company 
Interest, or portion thereof, upon which such Person foreclosed 
shall be subject to the terms of Article VIII of this Agreement.


ARTICLE IX 

DISSOLUTION AND WINDING-UP

IX.1   Dissolution.  The Company shall be dissolved upon the 
first to occur of the following events (each, a "Dissolution 
Event"):

(a) 	the Bankruptcy of any Member;

(b) 	the election by the Members to dissolve the Company;

(c) 	the occurrence of any event that makes it unlawful for 
the business of the Company to be carried on or for the Members 
to carry it on as a limited liability company;

(d) 	the entry of a decree of judicial dissolution; or

(e) 	subject to Sections 9.8 and 9.9, the occurrence of any 
other event that, absent an agreement to the contrary, causes a 
dissolution of the Company under the Act;

provided that, except as provided in the Contribution Agreement, 
if a dissolution of the Company is caused by the Bankruptcy of 
any Member (the "Bankrupt Member"), then DEI, if it is not the 
Bankrupt Member or Radian, if it is not the Bankrupt Member (in 
either case, the "Non-Bankrupt Member") may elect to, upon notice 
to the Bankrupt Member, purchase (or have an Affiliate purchase) 
all, but not less than all, of the Bankrupt Member's Company 
Interest at the Purchase Price.  The "Purchase Price" to be paid 
to the Bankrupt Member (by the Non-Bankrupt Member) in any sale 
and purchase of the Bankrupt Member's Company Interest pursuant 
to this Section 9.1 shall be (x) 50% of what the entire Company 
could be sold for multiplied by the Bankrupt Member's Company 
Interest, determined (unless otherwise agreed) in accordance with 
the Appraisal Procedure (which Appraisal Procedure shall be at 
the expense of the Bankrupt Member), reduced by (y) the amount of 
any actual losses, costs, fees, expenses or damages suffered by 
the Company, the Non-Bankrupt Member or any of its Affiliates as 
a result of such dissolution, and shall be payable to the 
Bankrupt Member in five equal annual installments, without 
interest, commencing on the date of the transfer of the Company 
Interest of the Bankrupt Member (which shall be the tenth (10th) 
business day following the determination of the Purchase Price); 
provided, however, that if Radian is the Bankrupt Member and if 
DEI elects to purchase (or have an Affiliate purchase) all of 
Radian's Company Interest on or prior to December 31, 1998, then 
the fair market value of Radian's Company Interest for purposes 
of (x) above shall be equal to the amount set forth in 
Section 8.3 of this Agreement as if Radian had exercised its 
option to sell; provided further, however, that such fair market 
value (prior to the adjustment set forth below) shall be 
discounted at a rate of 10% per year or portion thereof if such 
purchase shall occur prior to December 31, 1997.  In any winding 
up pursuant to Section 9.2 of this Agreement, the amount 
otherwise distributable to the Bankrupt Member pursuant to the 
following provisions of this Article IX shall be reduced by the 
amount of any actual losses, costs, fees, expenses or damages 
suffered by the Company or the Non-Bankrupt Member or any of its 
Affiliates as a result of such dissolution.  Notwithstanding the 
foregoing, if the enforceability of such Non-Bankrupt Member's 
right to purchase the Bankrupt Member's Company Interest as set 
forth above is in any way limited by general equitable 
principles, Bankruptcy, moratorium, or other laws affecting 
creditors' rights generally then, upon notice to the Bankrupt 
Member and the Company, the Non-Bankrupt Member or any of its 
Affiliates shall have the right to purchase from the Company all, 
but not less than all, of the assets and liabilities of the 
Company at the fair market value therefor.  If DEI and Radian 
cannot agree upon such fair market value within sixty (60) days 
after the notice to purchase all the assets and liabilities of 
the Company is delivered, either DEI or Radian may, by notice to 
the other, invoke the Appraisal Procedure.  If the Appraisal 
Procedure is required to determine the fair market value of all 
the assets and liabilities of the Company, the fees and expenses 
of such Appraisal Procedure shall be borne by the Bankrupt 
Member.  The closing of such sale shall take place upon the date 
that is within thirty (30) days after such fair market value is 
determined in accordance with this Section 9.1.  

IX.2   Winding-Up.  Upon dissolution of the Company, and if 
the Non-Bankrupt Member has not made any election pursuant to 
Section 9.1, the Member with the largest Company Interest or, if 
a dissolution of the Company is caused by the Bankruptcy of any 
Member, the Non-Bankrupt Member shall wind up the affairs of the 
Company in accordance with the Act and, to the extent permitted 
by applicable law, shall settle accounts between the Members as 
specified in this Article IX.  The Member charged with winding up 
the affairs of the Company and settling accounts among the 
Members under this Agreement shall be referred to as the 
"Liquidating Member".

IX.3   Accounting on Dissolution.  If the Company is not 
continued in accordance with the terms of this Agreement 
following a dissolution, then on the date (the "Accounting Date") 
which is four (4) months following the date of dissolution, a 
proper accounting shall be made of the Company assets, 
liabilities and operations, from the date of the last previous 
accounting to the Accounting Date.  Any items of income, gain, 
credit, loss, expense and other deductions which are realized 
subsequent to the date of the last previous accounting to the 
Accounting Date shall be allocated in accordance with Article V 
and proper adjustments shall be made to the Capital Account of 
each Member.

IX.4   Accounting; Allocations of Residual Net Profits and 
Residual Net Loss After Dissolutions.

(a) 	Except as provided in Section 9.4(c), any items of gain 
or loss that are realized from Company operations or from sales 
of Company assets subsequent to the Accounting Date and before 
the date of liquidation shall be allocated as provided in 
Article V.

(b) 	Except as provided in Section 9.4(c) and in addition to 
the adjustments to the Member's Capital Accounts described above, 
if any of the Company's assets are to be distributed in kind 
rather than sold, the fair market value of such assets shall be 
determined by the Members and a simulated aggregate gain (if any) 
or loss (if any) for those assets (based upon the difference 
between such fair market value and the Gross Asset Value of such 
assets immediately before such revaluation) shall be allocated to 
the Members' Capital Accounts as that simulated aggregate gain 
(or loss) would have been allocated under Article V if such 
assets had been sold for a cash price equal to each asset's fair 
market value on the Accounting Date.  If DEI and Radian cannot 
agree upon such fair market value within sixty (60) days after 
the Accounting Date, either DEI or Radian may, by notice to the 
other, invoke the Appraisal Procedure.  If the Appraisal 
Procedure is required to determine the fair market value of such 
assets, the fees and expenses of such Appraisal Procedure shall 
be shared equally by DEI and Radian.

(c) 	Prior to the fourth (4th) anniversary of the Closing, 
loss from the sale or deemed sale of assets in conjunction with a 
dissolution pursuant to this Agreement shall be specially 
allocated 100% to DEI; provided, however, that the Losses 
specially allocated pursuant to this Section 9.4(c) shall not 
exceed the Stairstep Loss Cap calculated as of the date of the 
sale or deemed sale giving rise to the Loss.

IX.5   Conversion of Assets to Cash.

(a) 	If the Company Interest of the Bankrupt Member is not 
purchased in accordance with the terms of this Agreement, then 
commencing with the date that is four (4) months after the date 
of dissolution, unless arrangements satisfactory to all Members 
are otherwise made, sufficient assets of the Company will be 
converted into cash to permit the Company to pay all its 
liabilities other than long-term debts which (i) are secured by 
Company assets from which the projected net income is sufficient 
to pay installments of principal and interest on such debts as 
they become due and (ii) contain terms specifying that neither 
the dissolution of the Company nor the distribution of such 
property that is subject to and secured by such debts constitutes 
a default or causes the acceleration of the maturity of such 
indebtedness ("Approved Debts").

(b) 	Notwithstanding the provisions of Sections 9.6 and 9.7 
regarding the method and timing of the liquidation of the assets 
of the Company, but subject to the order of priorities set forth 
in this Agreement, if on commencement of the winding up process 
in accordance with Section 9.2, the Members determine that an 
immediate sale of part or all of the Company's assets would be 
impractical or would cause undue loss to the Members, the Members 
may defer for a reasonable time the liquidation of any assets 
except those necessary to satisfy the liabilities of the Company.

(c) 	In the event that Company assets are distributed in 
kind pursuant to Section 9.4(b), the Members shall be consulted 
to determine the most tax-efficient manner to make such 
distribution, consistent with the liquidation priorities of 
Section 9.6.

IX.6   Distributions in Liquidation.  As soon as the actions 
required by Sections 9.3, 9.4 and 9.5 have been completed, the 
Liquidating Member shall cause the cash and assets of the Company 
to be distributed in the following order:

(a) 	To creditors of the Company (other than Members) in 
payment of all liabilities of the Company (other than Approved 
Debts) in the order of priority as provided by law.  If any 
liability is contingent or uncertain in amount, a reserve equal 
to the maximum amount to which the Company could reasonably be 
held liable will be established.  Upon the payment or other 
discharge of such liability, the amount remaining in such reserve 
not needed, if any, will be distributed in accordance with the 
remaining provisions of this Section 9.6.

(b) 	To the Members in payment of all Member Loans and any 
interest thereon in accordance with the amount owing to each 
Member.

(c) 	To the Members in payment of all loans other than 
Member Loans (including, without limitation, any Ordinary Loans) 
and any interest thereon in accordance with the amount owing to 
each Member.

(d) 	To each Member in accordance with the positive balance 
in its Capital Account, as set forth in Section 9.7.

(e) 	Notwithstanding the foregoing provisions of this 
Section 9.6 and the provisions of Article V, any distribution 
which would be payable to a Member whose actions in violation of 
this Agreement caused the dissolution of the Company shall be 
reduced by the amount of losses, costs, fees, expenses and 
damages suffered by the Company or any Member or its Affiliates 
(other than the Member whose actions caused a dissolution) as a 
result of such dissolution, and a corresponding allocation of Net 
Losses or gross deductions shall be made to such Member.

IX.7   Compliance with Treasury Regulations.  In the event 
that the Company or any Member's Company Interest is "liquidated" 
within the meaning of Treasury Regulation Section 1.704-
1(b)(2)(ii)(g), liquidating distributions shall be made, pursuant 
to this Agreement, in accordance with the Members' positive 
Capital Account balances, as required by Treasury Regulation 
Section 1.704-1(b)(2)(ii)(b)(2), by the end of the taxable year 
or, if later, within ninety (90) days after the date of such 
liquidation.  In determining any Member's Capital Account balance 
pursuant to this Section 9.7, any item of gain, loss, deduction, 
and credit that has not previously been allocated pursuant to 
Article V shall be so allocated.  

IX.8   Section 708 Termination.  Notwithstanding any other 
provision of this Article IX, in the event that the Company is 
liquidated within the meaning of Section 1.704-1(b)(2)(ii)(g) of 
the Treasury Regulations, but no Dissolution Event has occurred, 
the assets of the Company shall not be liquidated, the Company's 
liabilities shall not be paid or discharged, and the Company's 
affairs shall not be wound up.

IX.9   Continuation of the Company.  Unless required by 
applicable law, no sale, transfer, assignment or other 
disposition by either Member of all or any part of its Company 
Interest in accordance with the terms of this Agreement shall 
cause a dissolution of the Company, and, if such a dissolution is 
required under applicable law, immediately upon such sale, 
transfer, assignment or other disposition by either Member, the 
Company shall be reconstituted as a limited liability company, 
governed by this Agreement, among the transferee, purchaser or 
assignee and the remaining Member or Members; provided, however, 
that nothing in this Section 9.9 shall be construed to conflict 
with the requirement in Section 9.1(a) of this Agreement that a 
Bankruptcy of any Member shall cause the dissolution of the 
Company.  A Member's rights (i) under the Transaction Documents 
and (ii) to be a Member shall terminate upon a Transfer of that 
Member's Company Interest (including without limitation a 
Transfer pursuant to Sections 8.2, 8.3 or 9.1 of this Agreement).

IX.10   Waiver of Certain Rights.  Except as provided in this 
Agreement or as otherwise agreed in writing by the Members, to 
the extent permitted by Delaware law, each Member hereby waives 
(i) all rights it may have under Delaware law to cause the 
dissolution of the Company (other than dissolution by operation 
of law as a result of a transfer of its Company Interest as 
expressly permitted by this Agreement), (ii) to the extent a 
dissolution occurs by operation of law, the right to cause the 
Company to wind up its affairs and make distributions to the 
Members pursuant to Article IX upon the occurrence of such 
dissolution and (iii) all rights to partition with respect to 
real and personal property, provided that this clause shall not 
apply to assets that have previously been distributed by the 
Company to the Members.

ARTICLE X 

MISCELLANEOUS PROVISIONS

X.1   Assignment.  This Agreement shall be binding upon and 
inure to the benefit of the parties hereto and their respective 
successors and assigns; provided that no assignment of any 
Company Interest, or portion thereof, shall be effective unless 
made in accordance with the terms of this Agreement.  The sale, 
transfer or assignment of a Company Interest, or portion thereof, 
in accordance with the terms of this Agreement shall result in 
the transfer to the purchaser, transferee or assignee of a 
Company Interest, or portion thereof, that is equal to the sold, 
transferred or assigned Company Interest, or the sold, trans-
ferred or assigned portion thereof, of the seller, transferor or 
assignor and shall cause the purchaser, transferee or assignee to 
be subject to and to incur all obligations pertaining to the 
sold, transferred or assigned Company Interest, or the sold, 
transferred or assigned portion thereof.

X.2   Notices.  All communications, notices and consents 
provided for in this Agreement shall be in writing and be given 
by delivery (including delivery by courier, overnight delivery 
service or facsimile transmittal), with delivery effective on 
receipt.  Notices shall be addressed as follows:

		if to DEI to:

			Dow Environmental Inc.
			c/o The Dow Chemical Company
			2030 Dow Center
			Midland, Michigan  48674
			Telecopy:  (517) 636-0861
			Attention:  General Counsel

		if to Radian at:

			Radian Corporation
			c/o The Hartford Steam Boiler Inspection 
			and Insurance Company
			One State Street
			P.O. Box 5024
			Hartford, Connecticut 06102-5024
			Telecopy:  (203) 722-5710
			Attention: General Counsel

or at such other address as either DEI or Radian may from time to 
time designate by notice duly given in accordance with the 
provisions of this Section.

X.3   Governing Law.  This Agreement shall be governed by and 
construed in accordance with the laws of the State of Delaware 
without regard to the conflicts of law rules of such state.

X.4   Choice of Forum.  All suits, actions or proceedings 
arising out of or relating to this Agreement shall be brought in 
a state or federal court located in the State of Delaware, which 
courts shall be an appropriate forum for all such suits, actions 
or proceedings.  Each Member waives any objection which it may 
now or hereafter have to the laying of venue in any such court of 
any such suit, action or proceeding.

X.5   Consent to Jurisdiction.  Each Member irrevocably 
submits to the jurisdiction of any state or federal court located 
in the State of Delaware in any such suit, action or proceeding 
referred to in Section 10.4.

X.6   Waiver of Jury Trial.  EACH MEMBER WAIVES ANY RIGHT TO 
A TRIAL BY JURY IN ANY SUIT, ACTION OR PROCEEDING ARISING OUT OF 
OR RELATING TO THIS AGREEMENT AND AGREES THAT ANY SUCH SUIT, 
ACTION OR PROCEEDING SHALL BE TRIED BEFORE A COURT AND NOT BEFORE 
A JURY.

X.7   Entire Agreement; Amendments.  This Agreement 
(including the exhibit and schedules to this Agreement) together 
with the other Transaction Documents (including any exhibits or 
schedules thereto) embody the entire agreement and understanding 
between the parties with respect to the subject matter of this 
Agreement, and supersede any agreements, representations, 
warranties or understandings, oral or written, between the 
parties with respect to the subject matter of this Agreement and 
the other Transaction Documents entered into prior to the date of 
this Agreement.  This Agreement may be amended or modified 
(including, without limitation, to admit a new member or members, 
other than any new member or members admitted to the Company 
pursuant to a transfer of the Company Interest (or a portion 
thereof) of a Member pursuant to Section 8.2) only by an 
instrument in writing executed by all of the Members owning 
Company Interests as of the date of such amendment or 
modification.

X.8   Execution in Counterparts.  This Agreement may be 
signed in counterparts.  Any single counterpart or set of 
counterparts signed, in either case, by all the parties to this 
Agreement constitutes a full and original agreement for all 
purposes.

X.9   Remedies and Waiver.  No failure or delay in exercising 
any right under this Agreement shall operate as a waiver of or 
impair any such right.  No single or partial exercise of any such 
right shall preclude any other or further exercise thereof or the 
exercise of any other right.  Any waiver must be given in writing 
to be effective, and no waiver shall be deemed a waiver of any 
other right.

X.10   Headings.  The headings of Articles and Sections have 
been included in this Agreement for convenience only and shall 
not constitute a part of this Agreement for any other purpose.

X.11   Third Party Beneficiaries.  This Agreement is solely 
for the benefit of the parties to this Agreement and the parties 
having the right to indemnification pursuant to Section 6.13, and 
no provision of this Agreement confers upon third parties (other 
than the parties having the right to indemnification pursuant to 
Section 6.13) any remedy, claim, liability, reimbursement, claim 
of action or other right in excess of those existing without 
reference to this Agreement.

X.12   Further Assurances.  Each Member agrees to execute and 
deliver such other documents, certificates, agreements and other 
writings and to take such other actions as may be necessary or 
desirable in order to consummate or implement expeditiously the 
transactions contemplated by the Transaction Documents and to 
vest in the Company good title to the Contributed Assets, subject 
only to Permitted Liens.

X.13   Public Announcements.  Except as may be required by 
applicable law or any listing agreement of any Member or Member's 
Affiliates with any national securities exchange, neither the 
Company nor any Member nor any Affiliate thereof will issue any 
press release or make any public statement with respect to the 
business of the Company or its financial performance or condition 
without the prior written consent of the Members unless either 
(i) a draft of the proposed release has been provided to each 
Member at least twenty-four (24) hours prior to its proposed 
release in order to permit the Members to comment thereon, 
(ii) such press release or other public statement contains 
factual information (or discussion or analysis of or comment 
based upon such factual information) previously provided in 
writing to such Person by the Members Committee, or (iii) 
required by law.

X.14   Termination.  This Agreement shall terminate if the 
Contribution Agreement terminates and the Closing has not 
occurred.
 


	IN WITNESS WHEREOF, the parties have signed this Agreement 
on the date first written above.


	DOW ENVIRONMENTAL INC.


	By:/s/ Paul Goldstein
	   Paul Goldstein     
	   President


	RADIAN CORPORATION


	By:/s/ Donald M. Carlton
	   Donald M. Carlton
	   President and Chief Executive Officer



	EXHIBIT A




	Schedule of Definitions


	"Accounting Date" has the meaning set forth in Section 9.3 
of this Agreement.

	"Accounting Earnings" means the maximum amount of earnings 
before interest expense and taxes on income that the Company is 
allowed to report under GAAP.

	"Act" means the Delaware Limited Liability Company Act, 
Delaware Code Title 6, Sec. 18-101 et seq., or any successor 
thereto, as in effect at the time of reference.

	"Adjusted Deficit Capital Account" means, with respect to 
any Member, the deficit balance, if any, in such Member's Capital 
Account as of the end of the taxable year, after giving effect to 
the following adjustments:



(i) credit to such Capital Account of any amount which such 
Member is obligated to restore or deemed obligated to 
restore under Treas. Regs. Sec. 1.704-1(b)(2)(ii)(b)(3) 
and 1.704-1(b)(2)(ii)(c), as well as any addition thereto 
pursuant to the penultimate sentences of Treas. Regs. 
Sec. 1.704-2(g)(1) and (i)(5); and
	
(ii)   debit to such Capital Account of the items described in 
Treas. Regs. Sec. 1.704-1(b)(2)(ii)(d)(4), (5) and (6).

This definition of Adjusted Deficit Capital Account is intended 
to comply with Treas. Regs. Sec. 1.704-1(b)(2)(ii)(d), and will be 
interpreted consistently with those regulations.

	"Affiliate" has the meaning set forth in the Contribution 
Agreement.

	"Agreement" has the meaning set forth in the Preamble to 
this Agreement.

	"Alternates" has the meaning set forth in Section 6.3 of 
the Agreement.

	"Appraisal Procedure"  means the following:  If any price, 
value, amount or determination to be determined under the 
Agreement cannot timely be established by agreement, then either 
DEI or Radian, by written notice to the other, may invoke this 
Appraisal Procedure.  Each of DEI and Radian shall appoint its 
Qualified Expert to conduct an appropriate valuation and shall 
give notice of such appointment to the other Member within 
fifteen (15) days after delivery of the notice invoking such 
procedure.  If DEI or Radian does not appoint its Qualified 
Expert within such fifteen (15) day period, the valuation made by 
the Qualified Expert appointed by the other Member shall be 
conclusive and binding on the Members.  If within thirty (30) 
days after appointment of the Qualified Experts, such Qualified 
Experts are unable to agree upon an appropriate valuation but the 
higher valuation is not greater than 110% of the lower valuation, 
then the valuation which shall be binding on the Members shall be 
the average of the two valuations given by the Qualified Experts. 
 If the higher valuation is greater than 110% of the lower 
valuation, the two (2) Qualified Experts jointly shall appoint a 
third Qualified Expert within fifteen (15) days thereafter, or, 
if they do not do so, either DEI or Radian may request the 
American Arbitration Association, or any organization successor 
thereto, to appoint the third Qualified Expert.  The decision of 
the third Qualified Expert shall be given within sixty (60) days 
after its appointment, shall be at least equal to the lower 
valuation, shall not exceed the higher valuation and shall be 
binding on the Members.  

	"Approved Debts" has the meaning set forth in 
Section 9.5(a) of this Agreement.

	"Bankrupt" means any Person with respect to which a 
Bankruptcy shall have occurred.

	"Bankruptcy" shall mean with respect to any Person the 
occurrence of either of the following events:

(i)  the Person shall commence a voluntary case or other 
proceeding seeking liquidation, reorganization or other 
relief with respect to itself or its debts under any 
bankruptcy, insolvency or other similar law now or 
hereafter in effect or seeking the appointment of a 
trustee, receiver, liquidator, custodian or other similar 
official of it or any substantial part of its property, or 
shall consent to any such relief or to the appointment of 
or taking possession by any such official in an involuntary 
case or other proceeding commenced against it, or shall 
make a general assignment for the benefit of creditors, or 
shall fail generally to pay its debts as they become due, 
or shall take any corporate action to authorize any of the 
foregoing; or

(ii)   an involuntary case or other proceeding shall be 
commenced against the Person seeking liquidation, reorgani-
zation or other relief with respect to it or its debts 
under any bankruptcy, insolvency or other similar law now 
or hereafter in effect or seeking the appointment of a 
trustee, receiver, liquidator, custodian or other similar 
official of it or any substantial part of its property, and 
such involuntary case or other proceeding shall remain 
undismissed and unstayed for a period of sixty (60) days; 
or an order for relief shall be entered against the Person 
under the federal bankruptcy laws as now or hereafter in 
effect.

	"Bankrupt Member" has the meaning set forth in Section 9.1 
of this Agreement.

	"Capital Account" shall mean a separate account maintained 
for each Member in accordance with Treas. Reg. 1.704-1(b)(2)(iv) 
as follows:

(a)   To each Member's Capital Account there shall be credited 
such Member's Capital Contributions, such Member's 
distributive share of Net Profits and any items in the 
nature of income or gain which are specially allocated 
pursuant to Section 5.2 of this Agreement, and the amount 
of any Company liabilities assumed by such Member or which 
are secured by any Property distributed to such Member.

(b)   To each Member's Capital Account there shall be debited 
the amount of cash and the Gross Asset Value of any 
Property distributed to such Member pursuant to any 
provision of this Agreement, such Member's distributive 
share of Net Losses and any items in the nature of expenses 
or losses which are specially allocated pursuant to 
Section 5.2 of this Agreement, and the amount of any 
liabilities of such Member assumed by the Company or which 
are secured by any property contributed by such Member to 
the Company.

	"Capital Contribution" has the meaning set forth in Article 
III of this Agreement.  

	"Closing" has the meaning set forth in the Contribution 
Agreement.

	"Closing Date" has the meaning set forth in the 
Contribution Agreement.

	"Code" means the Internal Revenue Code of 1986, as amended 
and the regulations promulgated thereunder.

	"Company" has the meaning set forth in the Preamble to this 
Agreement.

	"Company Interests" has the meaning set forth in 
Section 4.1 of this Agreement.

	"Contributed Assets" has the meaning set forth in the 
Contribution Agreement.

	"Contributing Member" has the meaning set forth in 
Section 3.6 of this Agreement.

	"Contribution Agreement" means that certain Contribution 
Agreement dated as of the Closing Date among TDCC, The Hartford 
Steam Boiler Inspection and Insurance Co., DEI and Radian. 

	"Credit Facility" has the meaning set forth in 
Section 3.5(b) of this Agreement.

 "Debt" shall mean, as to any person, (a) indebtedness of
such Person for borrowed money, (b) indebtedness of such
Person for the deferred purchase price of services or
property (other than normal trade accounts payable), 
(c) obligations of such Person under leases which have been, or, 
in accordance with generally accepted accounting principles, 
should be, recorded as capitalized leases, (d) indebtedness of 
such Person consisting of unpaid reimbursement obligations in 
respect of all outstanding drawings under letters of credit 
issued for the account of such Person and (e) Debt of others 
guaranteed by such Person.

	"Debt Ratio" means a fraction (i) the numerator of which is 
equal to the Debt of the Company and (ii) the denominator of 
which is the sum of Debt plus the sum of the current GAAP equity 
accounts of each of the Members.

	"DEI" has the meaning set forth in the Preamble of this 
Agreement.

	"DEI Alternate" and "DEI Alternates" have the meanings set 
forth in Section 6.3 of this Agreement.

	"DEI Representative" and "DEI Representatives" means an 
employee or employees of DEI or one or more of its Affiliates 
selected by DEI to represent it on the Members Committee.

	"Depreciation" means, for each Fiscal Year, an amount equal 
to the depreciation, amortization, or other cost recovery 
deduction allowable with respect to an asset for such Fiscal 
Year, except that if the Gross Asset Value of an asset differs 
from its adjusted basis for Federal income tax purposes at the 
beginning of such Fiscal Year, Depreciation shall be an amount 
which bears the same ratio to such beginning Gross Asset Value as 
the Federal income tax depreciation, amortization, or other cost 
recovery deduction for such Fiscal Year bears to such beginning 
adjusted tax basis; provided, however, that if the adjusted basis 
for Federal income tax purposes of an asset at the beginning of 
such Fiscal Year is zero, Depreciation shall be determined with 
reference to such beginning Gross Asset Value using any 
reasonable method selected by the Members Committee.

	"Dissolution Event" has the meaning set forth in 
Section 9.1 of this Agreement.

	"Earnings Shortfall" has the meaning set forth in 
Section 8.3 of this Agreement.

	"Fiscal Year" has the meaning set forth in Section 7.2 of 
this Agreement.

		"GAAP" means the generally accepted accounting 
principles set forth in the opinions and pronouncements of the 
Accounting Principles Board of the American Institute of 
Certified Public Accountants and statements and pronouncements of 
the Financial Accounting Standards Board or in such other 
statements by such other entity as may be approved by a 
significant segment of the accounting profession in the United 
States.

	"Gross Asset Value" means, with respect to any asset, the 
asset's adjusted basis for Federal income tax purposes, except as 
follows:

(i)   The initial Gross Asset Value of any asset contributed by 
a Member to the Company shall be the fair market value of 
such asset at the time it is accepted by the Company, 
unreduced by any liability secured by such asset, as 
determined by the contributing Member and the 
Representatives;

(ii)  the acquisition of an additional interest in the 
Company by any new or existing Member in exchange for more 
than a de minimis Capital Contribution; (b) the 
distribution by the Company to a Member of more than a de 
minimis amount of Property as consideration for an interest 
in the Company; and (c) the liquidation of the Company 
within the meaning of Treas. Regs. Sec. 1.704-1(b)(2)(ii)(g).

(iii)  The Gross Asset Value of any Company asset 
distributed to any Member shall be adjusted to equal the 
fair market value of such asset, unreduced by any liability 
secured by such asset, on the date of distribution as 
determined by the distributee and the Representatives; and

(iv)  The Gross Asset Values of Company assets shall be 
increased (or decreased) to reflect any adjustments to the 
adjusted basis of such assets pursuant to Code Sec. 734(b) or 
Code Sec. 743(b), but only to the extent that such adjustments 
are taken into account in determining Capital Accounts 
pursuant to Treas. Regs. Sec. 1.704-1(b)(2)(iv)(m) and para-
graph (vi) of the definition of "Net Profits" and "Net 
Losses" and Section 5.2(g) of this Agreement.

	If the Gross Asset Value of an asset has been determined or 
adjusted pursuant to paragraphs (i), (ii), or (iv) of this 
Agreement, such Gross Asset Value shall thereafter be adjusted by 
the Depreciation taken into account with respect to such asset 
for purposes of computing Net Profits and Net Losses.

	"Lien" means, with respect to any asset, any mortgage, 
lien, pledge, charge, security interest, easement, right of way, 
title defect or encumbrance of any kind with respect to such 
asset.

	"Liquidating Member" has the meaning set forth in 
Section 9.2 of this Agreement.

	"Loan Agreement" has the meaning set forth in Section 8.3 
of this Agreement.

	"Loss" has the meaning set forth in the Contribution 
Agreement.

	"Member" has the meaning set forth in the Preamble of this 
Agreement.

	"Member Loan" has the meaning set forth in Section 3.6 of 
this Agreement.

	"Members Committee" means the committee of Representatives 
described in Article VI of this Agreement.

	"Net Cash Flow" shall mean all cash, revenues, and funds 
received by the Company, including Capital Contributions, less 
the sum of the following to the extent paid or set aside by the 
Company:

(i)  all principal and interest payments on indebtedness of 
the Company and all other sums paid to lenders;

(ii) all cash expenditures incurred incident to the normal 
operation of the Company's business; and

(iii) such Reserves as the Representatives deem reasonably 
necessary to the proper operation of the Company's 
business;

all as determined by the Representatives.

	"Net Profits" and "Net Losses" shall mean, for each Fiscal 
Year, an amount equal to the Company's taxable income or loss for 
such Fiscal Year, determined in accordance with Code Sec. 703(a) 
(for this purpose, all items of income, gain, loss, or deduction 
required to be stated separately pursuant to Code Sec. 703(a)(1) 
shall be included in taxable income or loss), with the following 
adjustments:

(i)  any income of the Company that is exempt from Federal 
income tax and not otherwise taken into account in 
computing Net Profits or Net Losses pursuant to this 
definition shall be added to such taxable income or loss;

(ii)  any expenditures of the Company described in Code 
Sec. 705(a)(2)(B) or treated as Code Sec. 705(a)(2)(B) expendi-
tures pursuant to Treas. Regs. Sec. 1.704-1(b)(2)(iv)(i), and 
not otherwise taken into account in computing Net Profits 
or Net Losses pursuant to this definition shall be 
subtracted from such taxable income or loss;

(iii) in the event the Gross Asset Value of any Company asset 
is adjusted pursuant to paragraphs (ii) or (iii) of the 
definition of "Gross Asset Value," the amount of such 
adjustment shall be taken into account as gain or loss from 
the disposition of such asset for purposes of computing Net 
Profits or Net Losses;

(iv) gain or loss resulting from any disposition of Property 
with respect to which gain or loss is recognized for 
Federal income tax purposes shall be computed by reference 
to the Gross Asset Value of the property disposed of, 
notwithstanding that the adjusted tax basis of such 
property differs from its Gross Asset Value;

(v) in lieu of the depreciation, amortization, and other cost 
recovery deductions taken into account in computing such 
taxable income or loss there shall be taken into account 
Depreciation for such Fiscal Year, computed in accordance 
with the definition of Depreciation above;

(vi) to the extent an adjustment to the adjusted tax basis of 
any Company asset pursuant to Code Sec. 734(b) or Code 
Sec. 743(b) is required pursuant to Treas. Regs. 
Sec. 1.704-1(b)(2)(iv)(m)(4) to be taken into account in 
determining Capital Accounts as a result of a distribution 
other than in complete liquidation of a Member's Interest, 
the amount of such adjustment shall be treated as an item 
of gain (if the adjustment increases the basis of the 
asset) or loss (if the adjustment decreases the basis of 
the asset) from the disposition of the asset and shall be 
taken into account for purposes of computing Net Profits or 
Net Losses; and

(vii) notwithstanding any other provision of this definition, 
any items which are specially allocated pursuant to Section 
5.2 of this Agreement shall not be taken into account in 
computing Net Profits or Net Losses.

	The amounts of items of Company income, gain, loss or 
deduction available to be specially allocated pursuant to 
Section 5.2 of this Agreement shall be determined by applying 
rules analogous to those set forth in paragraphs (i) through (vi) 
above.

	"Newco Services Business" has the meaning set forth in the 
Contribution Agreement.  

	"Non-Bankrupt Member" has the meaning set forth in 
Section 9.1 of this Agreement.

	"Non-Contributing Member" has the meaning set forth in 
Section 3.6 of this Agreement.

	"Non-Contributing Member's Share" has the meaning set forth 
in Section 3.6 of this Agreement.

	"Nonrecourse Deductions" has the meaning set forth in 
Treas. Regs. Sec. 1.704-2(b)(1).

	"Nonrecourse Liability" has the meaning set forth in Treas. 
Regs. Sec. 1.704-2(b)(3).

	"Ordinary Loans" has the meaning set forth in 
Section 3.5(d) of this Agreement.

	"Parent" shall mean with respect to DEI, TDCC, and with 
respect to Radian, The Hartford Steam Boiler Inspection and 
Insurance Company.

	"Partner Nonrecourse Debt" has the meaning set forth in 
Treas. Regs. Sec. 1.704-2(b)(4).

	"Partner Nonrecourse Debt Minimum Gain" means an amount, 
with respect to each Partner Nonrecourse Debt, equal to the 
Partnership Minimum Gain that would result if such Partner 
Nonrecourse Debt were treated as a Nonrecourse Liability, 
determined in accordance with Treas. Regs. Sec. 1.704-2(i)(3).

	"Partner Nonrecourse Deductions" has the meaning set forth 
in Treas. Regs. Sec. 1.704-2(i)(1) and 1.704-2(i)(2).

	"Partnership Minimum Gain" has the meaning set forth in 
Treas. Regs. Sec. 1.704-2(b)(2) and 1.704-2(d).

	"Permitted Liens" has the meaning set forth in the 
Contribution Agreement.

	"Person" has the meaning set forth in the Contribution 
Agreement.

	"Preferred Accounting Earnings" shall mean Accounting 
Earnings equal to $19 million for Fiscal Year 1996 and $21 
million for Fiscal Year 1997.

	"Prime Rate" means the rate publicly announced from time to 
time by Citibank, N.A. in New York City as its prime rate.

	"Property" means all real and personal property contributed 
to or acquired by the Company and any improvements thereto, and 
shall include both tangible and intangible property.

	"Purchase Price" has the meaning set forth in Section 9.1 
of this Agreement.

	"Qualified Expert" means either (i) an investment banking 
firm or (ii) an independent accounting firm, in either case, of 
national and international reputation.

	"Radian" has the meaning set forth in the Preamble to this 
Agreement.

	"Radian Alternate" and "Radian Alternates" have the 
meanings set forth in Section 6.3 of this Agreement.

	"Radian Representative" and "Radian Representatives" means 
an employee or employees of Radian or one or more of its 
Affiliates selected by Radian to represent it on the Members 
Committee.

	"Regulatory Allocations" has the meaning set forth in 
Section 5.2(h) of this Agreement.

	"Representatives" means each of the Representatives of the 
Company designated from time to time by the Members in accordance 
with Section 6.3 of this Agreement.  As used in this Agreement 
and for purposes of the Act, the term Representative shall have 
the same meaning and have such rights, powers and authorities of 
a "manager" as provided in the Act and as otherwise provided by 
law.

	"Restricted Asset" has the meaning set forth in the 
Contribution Agreement.

	"Stairstep Loss Cap" means an amount equal to $200,000,000 
less the product of (i) the number of days that have elapsed 
since the Closing Date and (ii) $136,986.30; provided, however, 
that such Stairstep Loss Cap shall never be less then zero.

	"Subsidiary" or "Subsidiaries" has the meaning set forth in 
the Contribution Agreement.  

	"Tax Matters Partner" has the meaning set forth in 
Section 6.14 of this Agreement.

	"TDCC" has the meaning set forth in Section 2.2 of this 
Agreement.

	"Transaction Documents" has the meaning set forth in the 
Contribution Agreement.  

	"Transfer" has the meaning set forth in Section 8.2 of this 
Agreement.

	"Treasury Regulations" or "Treas. Regs." includes temporary 
and final regulations promulgated under the Code in effect on the 
date of this Agreement and the corresponding sections of any 
regulations subsequently issued that amend or supersede those 
regulations.

<PAGE>

Limited Liability Company Agreement

Schedule 6.1
Initial Officers and Duties

	Designation.  The officers of the Company shall be chosen 
by the Members Committee and shall be a President, a Secretary 
and a Treasurer.  The Members Committee also may choose such 
other officers or agents as from time to time may appear 
necessary or advisable in the conduct of the business and affairs 
of the Company.  Any number of offices may be held by the same 
person, unless otherwise prohibited by law or the Limited 
Liability Company Agreement.  The Members Committee also may 
delegate to any other officer of the Company the power to choose 
such other officers and to prescribe their respective duties and 
powers.  

	Election and Term.  The Members Committee shall elect the 
officers of the Company at its first regular meeting during each 
Fiscal Year.  The officers so elected shall exercise such powers 
and perform such duties as shall be determined from time to time 
by the Members Committee; and all officers of the Company shall 
hold office until their successors are elected by the Members 
Committee, or until their earlier resignation or removal.

	Resignation.  Any officer may resign at any time by giving 
written notice to the President or the Secretary of the Company. 
 Unless otherwise stated in such notice of resignation, the 
acceptance thereof shall not be necessary to make it effective; 
and such resignation shall take effect at the time specified 
therein or, in the absence of such specification, it shall take 
effect upon the receipt of the notice of resignation.

	Removal.  Except where otherwise expressly provided in a 
contract authorized by the Members Committee, any officer elected 
by the Members Committee may be removed at any time with or 
without cause by the affirmative vote of a majority of the entire 
Members Committee.

	Vacancies.  A vacancy in any office may be filled for the 
unexpired portion of the term by the Members Committee.

	Chair of the Members Committee.  The Chair of the Members 
Committee, shall preside at all meetings of the Representatives 
of the Members Committee.  The Chair of the Members Committee 
also shall perform such other duties and may exercise such other 
powers as may be assigned from time to time by the Members 
Committee.

	President.  The President shall be the chief executive 
officer of the Company, and, subject to the control of the 
Members Committee, shall be in general and active charge of the 
business and affairs of the Company.  The President shall have 
power to sign certificates of stock, contracts and instruments of 
conveyance,  checks, drafts, notes, orders for the payment of 
money, authorized bonds, and similar obligations.  In the absence 
or disability of the Chair of the Members Committee, or if the 
Members Committee does not appoint one, the President shall 
preside at all meetings of the Members and of the Members 
Committee.  The President shall perform such other duties as may 
be assigned from time to time by the Members Committee.

	Vice Presidents.  Each Senior Vice President or Vice 
President, if there be any, shall have such powers and perform 
such duties as may be assigned by the President or the Members 
Committee.

	Secretary.  The Secretary shall keep the minutes and give 
notices of all meetings of the Members Committee and such 
committees as directed by the Members Committee.  The Secretary 
shall have charge of such books and papers as the Members 
Committee may require.  The Secretary is authorized to certify 
copies of extracts from minutes and of documents in the 
Secretary's charge, and anyone may rely on such certified copies 
to the same effect as if such copies were originals and may rely 
upon any statement of fact concerning the Company certified by 
the Secretary.  The Secretary shall perform all acts incident to 
the office of Secretary, subject to the control of the Members 
Committee.

	Treasurer.  The Treasurer shall have the custody of the 
Company funds and securities, shall keep full and accurate 
accounts of receipts and disbursements in books belonging to the 
Company and shall deposit all moneys and other valuable effects 
in the name and to the credit of the Company in such depositories 
as may be designated by the Members Committee.  The Treasurer 
shall disburse the funds of the Company as may be ordered by the 
Members Committee, taking proper vouchers for such disbursements, 
and shall render to the President and the Members Committee, at 
its regular meetings, or when the Members Committee so requires, 
an account of all transactions taken as Treasurer and of the 
financial condition of the Company.  If required by the Members 
Committee, the Treasurer shall give the Company a bond in such 
sum and with such surety or sureties as shall be satisfactory to 
the Members Committee for the faithful performance of the duties 
of the office of Treasurer and for the restoration to the 
Company, in case of the Treasurer's death, resignation, 
retirement or removal from office, of all books, papers, 
vouchers, money and other property of whatever kind in the 
possession or under the control of the Treasurer and belonging to 
the Company.

	Other Officers.  Such other officers as the Members 
Committee may choose shall perform such duties and have such 
powers as from time to time may be assigned to them by the 
Members Committee.  The Members Committee may delegate to any 
other officers of the Company the power to choose such other 
officers and to prescribe their respective duties and powers.

	Compensation of Officers.  The officers of the Company 
shall receive such compensation for their services as the Members 
Committee from time to time may determine.

<PAGE>

	Limited Liability Company Agreement

	Schedule 6.10(a)(v)
	Accounting Policies and Procedures

	The current GAAP accounting policies and procedures 
followed by Radian Corporation, which are hereby adopted by 
the Company, to the extent that those policies and 
procedures do not substantially conflict with The Dow 
Chemical Company Accounting Manual (2 volumes).

See:	The Dow Chemical Company Accounting Manual (2 volumes)





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