NATIONAL HEALTH LABORATORIES HOLDINGS INC
8-K, 1994-07-08
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                  SECURITIES AND EXCHANGE COMMISSION

                        Washington, D.C. 20549

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


                               FORM 8-K


                            CURRENT REPORT


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



                             June 23, 1994
                   (Date of earliest event reported)



                NATIONAL HEALTH LABORATORIES HOLDINGS INC.    
        (Exact name or registrant as specified in its charter)


         Delaware             1-11353             13-3757370     
     (State or other        (Commission       (I.R.S. Employer
     jurisdiction or            File           Identification
     organization)             Number)             Number)


          4225 Executive Square
               Suite 805
           La Jolla, California                      92037  
     (Address of principal executive offices)     (Zip Code)


                            (619) 657-9382
         (Registrant's telephone number, including area code)





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     <PAGE>2



     Item 2.  ACQUISITION OR DISPOSITION OF ASSETS

               On June 22, 1994, National Health Laboratories
     Incorporated (the "Company" or "NHL"), the predecessor in
     interest of National Health Laboratories Holdings Inc., 
     announced that N Acquisition Corp. (the "Purchaser"), a
     wholly owned subsidiary of NHL, had accepted for payment
     8,361,409 shares of common stock, par value $.01 per share
     (the "Shares"), of Allied Clinical Laboratories, Inc., a
     Delaware corporation ("Allied"), representing in excess of
     99% of all outstanding Shares and constituting all the
     Shares tendered as of Midnight, New York City time, on June
     21, 1994, pursuant to the Purchaser's tender offer for all
     outstanding Shares for a price of $21.50 per Share net to
     the seller in cash.  2,768,815 shares of those tendered were
     delivered pursuant to the Stock Option Agreements, each
     dated as of May 3, 1994, as amended by the Amendments
     thereto, each dated as of June 7, 1994, among NHL, the
     Purchaser, and Haywood D. Cochrane, Jr. (264,773 shares) and
     Warburg, Pincus Capital Company, L.P. (2,504,042 shares),
     respectively.  On June 23, 1994, the Purchaser paid for such
     Shares using the proceeds of the credit facility established
     pursuant to the Credit Agreement dated as of June 21, 1994, 
     among NHL Intermediate Holdings Corp. II, the banks,
     financial institutions and other institutional lenders
     listed on the signature pages thereof, Citicorp USA Inc., as
     administrative agent and certain co-agents for the Lenders
     thereunder, thereby becoming the beneficial owner of in
     excess of 90% of all Shares then outstanding.

               On June 23, 1994, the effective date of the merger
     contemplated by the tender offer described above (the
     "Merger"), the Purchaser was merged with and into Allied
     pursuant to Section 253 of the Delaware General Corporation
     Law, with Allied continuing as the surviving corporation and
     as a wholly-owned subsidiary of NHL with 100 shares of
     common stock outstanding.  On June 23, 1994, NHL announced
     that the Merger transaction had been completed, at which
     time all shares of Allied common stock ceased to be
     outstanding and traded, and each Share thereafter
     represented a right to receive $21.50 per Share.

               The total purchase price for the Allied
     acquisition of $190.7 million, including aggregate related
     acquisition costs of $6.0 million, has been allocated to the
     tangible and identifiable intangible assets and liabilities
     of Allied based upon management's preliminary estimates of
     their fair value with the remainder allocated to cost in
     excess of assets acquired.  The allocation of purchase price








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     <PAGE>3



     for the Allied acquisition is subject to revision when
     additional information concerning asset and liability
     valuations is obtained.  In management's opinion, the asset
     and liability valuations for the Allied acquisition will not
     be materially different from the pro forma financial data 
     presented.  For purposes of presenting pro forma results, no
     changes in revenues or expenses have been made to reflect
     the result of any modification to operations that might have
     been made had the Merger been consummated on the assumed
     effective dates of the Merger.  The pro forma expenses
     include the recurring costs which are directly attributable
     to the Merger, such as interest expense and the related tax
     effects thereof and the change in depreciation and
     amortization expenses resulting from the allocation of the
     purchase cost.

     Item 7.   FINANCIAL STATEMENTS, PRO FORMA FINANCIAL
               INFORMATION AND EXHIBITS

               a.  Financial Statements of Allied.

               For a statement of Allied's financial condition,
     see the financial statements included in Allied's Annual 
     Report on Form 10-K for the year ended December 31, 1993 and
     Allied's Quarterly Report on Form 10-Q for the quarter ended
     March 31, 1994, which are incorporated herein by reference.

               b.  Pro Forma Financial Information.

                       PRO FORMA FINANCIAL DATA

               The following unaudited pro forma financial data
     of the Company are based on the historical consolidated
     financial statements of the Company and Allied adjusted to
     give effect to the Merger.  The Pro Forma Condensed Combined
     Consolidated Statement of Earnings Data and Other Data for
     the year ended December 31, 1993 and the three months ended
     March 31, 1994 give effect to the Merger as if it had
     occurred on January 1, 1993.  The Pro Forma Condensed
     Combined Consolidated Balance Sheet Data give effect to the
     Merger as if it had occurred on March 31, 1994.  The pro 
     forma adjustments are based upon available information and
     certain assumptions that management believes are reasonable. 
     The pro forma financial data do not purport to represent
     what the Company's results of operations or financial
     position would actually have been had the Merger in fact
     occurred on January 1, 1993 or March 31, 1994, or to project
     the Company's results of operations or financial position
     for or at any future period or date.  The pro forma
     financial data should be read in conjunction with the
     historical consolidated financial statements of the Company
     and Allied incorporated by reference herein.  See "Exhibits".





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     <PAGE>4



        PRO FORMA CONDENSED COMBINED CONSOLIDATED BALANCE SHEET
     <TABLE>
                         As of March 31, 1994
     <CAPTION>

                                       Actual           Pro Forma       Pro Forma
                                   Company   Allied     Adjustments     Combined
                                              (Dollars in Millions)
   <S>                            <C>       <C>         <C>            <C>
   Assets   
   Current assets: 
     Cash and cash
     equivalents . . . . . .      $  29.4   $   3.3      $(190.7)<F1>   $  32.7
                                                           (26.4)<F2>
                                                           (11.6)<F3>
                                                           228.7 <F3>
     Temporary investments .        ---         1.4        ---              1.4
     Accounts receivable, net       139.4      39.9         (4.0)<F4>     175.3
     Prepaid expenses and
      other  . . . . . . . .         26.5       5.5        ---             32.0
     Deferred income taxes .         20.2       2.3        ---             22.5
     Income taxes receivable          0.9                  ---              0.9
                                  -------   -------      -------        -------
        Total current assets        216.4      52.4         (4.0)         264.8
   Property, plant and
   equipment, net  . . . . .        105.6      33.3         (6.4)<F4>     132.5
   Intangible assets, net  .        294.1      55.7        211.1 <F4>     505.2
                                                           (55.7)<F4>
   Other assets, net . . . .         16.3       2.6         26.4 <F2>      51.4
                                                            (2.6)<F4>
                                                            11.6 <F3>
                                                            (2.9)<F5>
                                  -------   -------      -------        -------
        Total assets . . . .      $ 632.4   $ 144.0      $ 177.5        $ 953.9
                                  =======   =======      =======        =======
   Liabilities and
   Stockholders' Equity
   Current liabilities:
     Current portion of
      capital lease
      obligations  . . . . .      $ ---     $   0.7      $ ---          $   0.7
     Accounts payable  . . .         38.4       6.1        ---             44.5
     Dividend payable  . . .          6.8     ---          ---              6.8
     Government note, current
       portion . . . . . . .         16.0     ---          ---             16.0
     Acquisition contingent
   payments, current portion         13.4     ---            4.8 <F4>      18.2
   Accrued expenses and other        49.4      10.1          6.0 <F4>      64.2
                                                            (1.3)<F5>
                                  -------   -------      --------       -------

        Total current
          liabilities  . . .        124.0      16.9           9.5         150.4
   Revolving Credit Facility        ---       ---           152.7 <F3>    152.7
   Term Facility . . . . . .        ---       ---           400.0 <F3>    400.0
   Other senior bank
     indebtedness  . . . . .        324.0     ---          (324.0)<F3>    ---
   Allied Convertible Notes         ---        24.0         ---            24.0
   Capital lease obligations          9.8       0.4         ---            10.2
   Government note . . . . .          7.0       ---         ---             7.0
   Acquisition contingent
   payments  . . . . . . . .         13.5       ---          11.6 <F4>     25.1
   Deferred income taxes . .          5.0        7.7        ---            12.7
   Other liabilities . . . .          7.0        0.3          1.5 <F2>     31.3
                                                             22.5 <F4>
                                  -------   -------      --------       -------
        Total liabilities  .        490.3      49.3         273.8         813.4
                                  -------   -------      --------       -------
   Stockholders' equity:
     Common stock  . . . . .          1.0       0.1          (0.1)<F4>      1.0
     Additional paid-in
       capital . . . . . . .        226.3      64.7         (64.7)<F4>    226.3
     Retained earnings . . .        203.3      29.9         (29.9)<F4>    201.7
                                                             (1.6)<F5>
    Minimum pension liability
      adjustment . . . . . .         (2.4)    ---                          (2.4)
     Treasury stock, at cost       (286.1)    ---           ---          (286.1)
                                ---------   -------      --------       -------
        Total stockholders'
          equity . . . . . .       142.1       94.7         (96.3)        140.5
                                --------    -------      --------       -------
          Total liabilities
            and stockholders'
            equity . . . . .    $  632.4    $ 144.0      $  177.5       $ 953.9
                                ========    =======      ========       =======
     </TABLE>

        See accompanying Notes to Pro Forma Condensed Combined
     Consolidated Balance Sheet.



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     <PAGE>5



     [FN]

      Notes to Pro Forma Condensed Combined Consolidated Balance
     Sheet
     <F1> Reflects the purchase price of Allied of $190.7
          million, including aggregate related acquisition costs
          of $6.0 million.

     <F2> Reflects the establishment of an escrow account to
          provide for payment in full of the $24.0 million
          outstanding principal amount of the Allied Convertible
          Notes and $2.4 million representing related interest
          and other expenses.

     <F3> Reflects the repayment of an existing revolving credit
          facility of $324.0 million and borrowings under the
          Revolving Credit Facility of $152.7 million and the
          Term Facility of $400.0 million; and the payment of
          estimated related fees and expenses of $11.6 million
          which have been capitalized as deferred financing costs
          and included in the caption "Other assets."

     <F4> Reflects the estimated allocation of the purchase price
          paid to the net assets of Allied based upon the fair
          market values of such net assets.

                                                  (Dollars in Millions)
   Estimated Allied acquisition cost . . . .              $190.7
   Less historical book value of Allied's net
   assets at March 31, 1994  . . . . . . . .               (94.7)
   Elimination of Allied's pre-acquisition
   goodwill  . . . . . . . . . . . . . . . .                55.7
   Write-down of Allied's property, plant and
   equipment . . . . . . . . . . . . . . . .                 6.4
   Record liability for Allied's future
   payments on acquisitions  . . . . . . . .                16.4
   Other adjustments to Allied's net 
   assets  . . . . . . . . . . . . . . . . .                36.6 
                                                          -------
   Allied Acquisition goodwill . . . . . . .              $211.1
                                                          =======

     <F5> Reflects the write-off of $2.9 million ($1.6 million
          after-tax) of deferred financing costs related to the
          repayment of an existing revolving credit facility.




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     <PAGE>6



     PRO FORMA CONDENSED COMBINED CONSOLIDATED STATEMENT OF EARNINGS

                          As of December 31, 1994
     <TABLE>

                                            Actual        Pro Forma      Pro Forma
                                     Company     Allied   Adjustments    Combined
                                                 (Dollars in Millions)
      <S>                            <C>      <C>         <C>            <C> 
      Net sales . . . . . . . . .    $760.5   $163.0      $              $923.5
      Cost of sales . . . . . . .     444.5    109.9         (1.0)<F6>    553.4
                                     ------   ------      -------        ------
           Gross profit . . . . .     316.0     53.1          1.0         370.1
      Selling, general and
        administrative expenses .     121.4     34.3         --           155.7
      Amortization of intangibles
        and other assets  . . . .       9.1      3.2          5.3<F6>      17.6
                                     ------   ------      -------        ------
            Operating income  . .     185.5     15.6         (4.3)        196.8
      Other income (expenses):
        Other gains and expenses,
          net . . . . . . . . . .      15.3     --           --            15.3
        Investment income . . . .       1.2      0.5         --             1.7
        Interest expense  . . . .     (10.9)    (2.1)       (19.7)<F7>    (32.7)
                                     ------   ------      -------        ------

                                        5.6     (1.6)       (19.7)        (15.7)
                                     ------   ------      -------        ------ 
        Earnings before income
          taxes . . . . . . . . .     191.1     14.0        (24.0)        181.1
      Provision for income taxes       78.4      5.6        (9.8)<F8>      74.2
                                     ------   ------      ------         ------


                           Three Months Ended March 31, 1994

                                           Actual           Pro Forma   Pro Forma
                                   Company    Allied      Adjustments   Combined
                                                (Dollars in Millions)
      Net sales . . . . . . . . .  $185.0      $ 46.2     $              $231.2
      Cost of sales . . . . . . .   132.3        31.6        (0.3)<F6>    163.6
                                   ------      ------     -------        ------
          Gross profit  . . . . .    52.7        14.6         0.3          67.6
      Selling, general and           31.0         9.6        --            40.6
      administrative expenses . .
      Amortization of intangibles
      and other assets  . . . . .     3.1         1.0         1.3<F6>       5.4
      Gain on disposition of
      regional assets . . . . . .    --          (0.7)       --            (0.7)
                                   ------      ------     -------        ------

          Operating income  . . .    18.6         4.7        (1.0)         22.3
      Other income (expenses):
          Investment income . . .     0.2         0.0        --             0.2
          Interest expense  . . .    (4.5)       (0.5)       (3.9)<F7>     (8.9)
                                   ------      ------     -------        ------
                                     (4.3)       (0.5)       (3.9)         (8.7)
                                   ------      ------     -------        ------

          Earnings before income
      taxes . . . . . . . . . . .    14.3         4.2        (4.9)         13.6
      Provision for income taxes      6.2         1.7        (2.1)<F8>      5.8
                                   ------      ------     -------        ------
          Net earnings  . . . . .  $  8.1      $  2.5     $  (2.8)       $  7.8 
                                   ======      ======     =======        ======


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     <PAGE>7 

     <FN>

     Notes to Pro Forma Condensed Combined Consolidated Statement
     of Earnings

     <F6> Reflects the effect of purchase accounting adjustments
          made as a result of the Allied acquisition as follows:
                                                           Three
                                                           Months
                                       Year Ended          Ended
                                   December 31, 1993   March 31, 1994
                                         (Dollars in Millions)
      Reduction in depreciation         and amortization of
        leasehold improvements         $(1.0)              $(0.3)
      Increase in amortization
        of goodwill . . . . . .          5.3                 1.3
                                       =====               =====
                                       $ 4.3               $ 1.0
                                       =====               =====


     <F7> The following reflects increased interest expense based
          upon the pro forma debt capitalization of NHL
          Intermediate Holdings Corp. II, an indirect, wholly- 
          owned subsidiary of the Company ("the Issuer") after
          giving effect to the Merger:
                                                           Three
                                                           Months
                                       Year Ended          Ended
                                   December 31, 1993  March 31, 1994 
                                         (Dollars in Millions)
      Interest on Issuer
        indebtedness:
          Revolving Credit
            Facility  . . . . .        $ (6.8)             $(1.9)
          Term Facility . . . .         (17.8)              (4.9)
      Commitment fee on unused
        portion of Revolving
        Credit Facility . . . .          (0.7)              (0.2)
      Amortization of deferred
        financing costs . . . .          (2.0)              (0.5)
      Elimination of interest
        expense on repaid debt            6.9                3.4
      Elimination of commitment 
        fees on repaid debt . .           0.3                0.0
      Elimination of
        amortization of deferred
        financing costs on
        repaid debt . . . . . .           0.4                0.2
                                       ======              =====
                                       $(19.7)             $(3.9)
                                       ======              =====

     In calculating interest expense, the following assumed
     interest rates were used:


                                                           Three
                                      Year Ended           Months
                                  December 31,  1993       Ended 
                                                       March 31, 1994
      Revolving Credit Facility           4.4%              4.9%
      Term Facility . . . . . .           4.4               4.9
      Commitment fee on unused
        portion of Revolving
        Credit Facility . . . .           0.4               0.4




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     <PAGE>8



     An increase or decrease in the interest rate of one-quarter
     of one percent (0.25%) with respect to the pro forma debt
     capitalization of the Issuer would increase or decrease
     interest expense as follows:
                                                           Three
                                                           Months
                                      Year Ended           Ended
                                   December 31, 1993   March 31, 1994
                                            (Dollars in Millions)
      Revolving Credit Facility           $0.4              $0.1 
      Term Facility . . . . . .            1.0               0.25


     <F8> Reflects the change in the provision for income taxes
          as a result of the pro forma adjustments.  Such tax
          adjustments were based on the historical effective tax
          rates used for the Company's consolidated financial
          statements.




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     <PAGE>9



               c.  Exhibits

                 2(a)    Agreement and Plan of Merger dated as of
                         May 3, 1994.
                 2(b)    Agreement dated as of June 7, 1994,
                         among the Purchaser, Parent and the
                         Company.
                 20      Press Release dated June 22, 1994. 
                 99(a)   Stock Option Agreement dated as of May
                         3, 1994, among NHL, N Acquisition Corp.
                         and Warburg, Pincus Capital Company,
                         L.P.
                 99(b)   Amendment dated as of June 7, 1994, to
                         Stock Option Agreement dated as of
                         May 3, 1994, among the Purchaser, Parent
                         and Warburg, Pincus Capital Company,
                         L.P.
                 99(c)   Stock Option Agreement dated as of May
                         3, 1994, among NHL, N Acquisitions Corp.
                         and Haywood D. Cochrane, Jr.
                 99(d)   Amendment dated as of June 7, 1994, to
                         Stock Option Agreement dated as of
                         May 3, 1994, among the Purchaser, Parent
                         and Haywood D. Cochrane, Jr.
                 99(e)   Credit Agreement dated as of June 21,
                         1994, among NHL Intermediate Holdings
                         Corp. II, the banks, financial
                         institutions and other institutional
                         lenders listed on the signature pages
                         thereof, Citicorp USA Inc., as
                         administrative agent and certain co-
                         agents for the lenders thereunder.





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     <PAGE>10



                              SIGNATURES

               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
     hereunto duly authorized.

                              NATIONAL HEALTH LABORATORIES
                              HOLDINGS INC.,

                                by  /s/  Michael L. Jeub
                                  ------------------------------
                                  Name:  Michael L. Jeub
                                  Title: Executive Vice President,
                                         Chief Financial Officer
                                         and Treasurer

     Date:  July 7, 1994



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     <PAGE>11



                             EXHIBIT INDEX


     Exhibit
     Number                   Exhibit

     2(a)      Agreement and Plan of Merger dated as of May 3,  
               1994 (incorporated herein by reference to 
               Exhibit (c)(1) of Schedule 14D-1 and Schedule 13D
               ("Schedule 14D-1 and Schedule 13D") of the Company
               and the Purchaser filed with the Securities and
               Exchange Commission (the "Commission") on May 9,
               1994)

     2(b)      Agreement dated as of June 7, 1994, among the
               Purchaser, Parent and the Company (incorporated
               herein by reference to Exhibit (c)(7) of Amendment
               No. 2 to Schedule 14D-1 and Schedule 13D
               ("Amendment No. 2") of the Company and the
               Purchaser filed with the Commission on June 8,
               1994)

     20        Press Release, dated June 22, 1994 (incorporated
               herein by reference to Exhibit (a)(15) of
               Amendment No. 3 to Schedule 14D-1 and Schedule 13D
               of the Company and the Purchaser filed with the
               Commission on June 22, 1994)

     99(a)     Stock Option Agreement dated as of May 3, 1994,
               among NHL, N Acquisition Corp. and Warburg, Pincus
               Capital Company, L.P. (incorporated herein by
               reference to Exhibit (c)(2) of Schedule 14D-1 and
               Schedule 13D)

     99(b)     Amendment dated as of June 7, 1994, to Stock
               Option Agreement dated as of May 3, 1994, among
               the Purchaser, Parent and Warburg, Pincus Capital
               Company, L.P. (incorporated herein by reference to
               Exhibit (c)(8) of Amendment No. 2 to 
               Schedule 14D-1 and Schedule 13D)

     99(c)     Stock Option Agreement dated as of May 3, 1994,
               among NHL, N Acquisition Corp. and Haywood
               D. Cochrane (incorporated herein by reference to 
               Exhibit (c)(3) of Schedule 14D-1 and Schedule 13D)






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     <PAGE>12



     Exhibit
     Number                   Exhibit

     99(d)     Amendment dated as of June 7, 1994, to Stock 
               Option Agreement dated as of May 3, 1994, among
               the Purchaser, Parent and Haywood D. Cochrane, Jr.
               (incorporated herein by reference to
               Exhibit (c)(9) of Amendment No. 2

     99(e)     Credit Agreement dated as of June 21, 1994, among
               NHL Intermediate Holdings Corp. II, the banks,
               financial institutions and other institutional
               lenders listed on the signature pages thereof,
               Citicorp USA Inc., as administrative agent and
               certain co-agents for the lenders thereunder




                             Page 12 of 12
              Exhibit Index is on page 11 of this filing 





</TABLE>

 


                                                     Exhibit 99(e)





                            $750,000,000


                          CREDIT AGREEMENT

                      Dated as of June 21, 1994

                                Among

                 NHL INTERMEDIATE HOLDINGS CORP. II,
                            as Borrower,

                       THE BANKS NAMED HEREIN,
                            as Banks and

                         CITICORP USA, INC.,
                       as Administrative Agent

                                 and

             THE LONG-TERM CREDIT BANK OF JAPAN, LTD., 

                         LOS ANGELES AGENCY,

                 NATIONSBANK OF NORTH CAROLINA, N.A.

                                 and

                   TORONTO DOMINION (TEXAS), INC.,

                            as Co-Agents































  <PAGE>2



                                                                 i
                          TABLE OF CONTENTS


       Section                                                Page

                              ARTICLE I

                  DEFINITIONS AND ACCOUNTING TERMS

       SECTION 1.01.  Certain Defined Terms . . . . . . . . .    2
       SECTION 1.02.  Computation of Time Periods . . . . . .   29
       SECTION 1.03.  Accounting Terms  . . . . . . . . . . .   29

                             ARTICLE II

                  AMOUNTS AND TERMS OF THE ADVANCES

       SECTION 2.01.  The Advances  . . . . . . . . . . . . .   29
       SECTION 2.02.  Making the Advances . . . . . . . . . .   30
       SECTION 2.03.  Repayment . . . . . . . . . . . . . . .   32
       SECTION 2.04.  Reduction of the Commitments  . . . . .   34
       SECTION 2.05.  Prepayments . . . . . . . . . . . . . .   35
       SECTION 2.06.  Interest  . . . . . . . . . . . . . . .   36
       SECTION 2.07.  Interest Rate Determination . . . . . .   37
       SECTION 2.08.  Fees  . . . . . . . . . . . . . . . . .   38
       SECTION 2.09.  Increased Costs . . . . . . . . . . . .   38
       SECTION 2.10.  Illegality  . . . . . . . . . . . . . .   40
       SECTION 2.11.  Payments and Computations . . . . . . .   41
       SECTION 2.12.  Taxes . . . . . . . . . . . . . . . . .   42
       SECTION 2.13.  Sharing of Payments, Etc  . . . . . . .   45
       SECTION 2.14.  Removal of Bank . . . . . . . . . . . .   46
       SECTION 2.15.  Conversion of Advances  . . . . . . . .   46
       SECTION 2.16.  Letters of Credit . . . . . . . . . . .   47
       SECTION 2.17.  Defaulting Lenders  . . . . . . . . . .   51

                             ARTICLE III

                        CONDITIONS OF LENDING

       SECTION 3.01.  Conditions Precedent to Initial
            Borrowing . . . . . . . . . . . . . . . . . . . .   54
       SECTION 3.02.  Conditions Precedent to Each Borrowing    61
       SECTION 3.03.  Determinations Under Section 3.01 . . .   62

                             ARTICLE IV

                   REPRESENTATIONS AND WARRANTIES

       SECTION 4.01.  Representations and Warranties of the
            Borrower  . . . . . . . . . . . . . . . . . . . .   62













  <PAGE>3



                                                                ii
                              ARTICLE V

                      COVENANTS OF THE BORROWER

       SECTION 5.01.  Affirmative Covenants . . . . . . . . .   70
            (a)  Compliance with Laws, Etc  . . . . . . . . .   70
            (b)  Compliance with Environmental Laws . . . . .   70
            (c)  Maintenance of Insurance.  . . . . . . . . .   70
            (d)  Preservation of Corporate Existence, Etc.  .   71
            (e)  Visitation Rights  . . . . . . . . . . . . .   71
            (f)  Keeping of Books.  . . . . . . . . . . . . .   71
            (g)  Maintenance of Properties, Etc.  . . . . . .   71
            (h)  Tender Offer . . . . . . . . . . . . . . . . . 71
            (i)  Termination of Financing Statements. . . . . . 73
            (j)  Performance of Material Contracts. . . . . .   73
            (k)  Cash Concentration Accounts. . . . . . . . .   73
            (l)  Interest Rate Hedging. . . . . . . . . . . .   73
            (m)  Merger.  . . . . . . . . . . . . . . . . . .   74
            (n)  Activities of the Company. . . . . . . . . .   76
            (o)  Real Estate Collateral.  . . . . . . . . . .   76
            (p)  Net Worth. . . . . . . . . . . . . . . . . .   78
            (q)  EBITDA to Interest Expense.  . . . . . . . .   78
            (r)  Debt to EBITDA.  . . . . . . . . . . . . . .   79
            (s)  Fixed Charge Coverage Ratio. . . . . . . . .   80
            (t)  Reporting Requirements.  . . . . . . . . . .   81
            (u)  Monthly Financial Statements.  . . . . . . .   85
            (v)  Transactions with Affiliates.  . . . . . . .   85
            (w)  Use of Proceeds. . . . . . . . . . . . . . .   86
            (x)  Corporate Separateness.  . . . . . . . . . .   86
       SECTION 5.02.   Negative Covenants.  . . . . . . . . .   87
            (a)  Liens, Etc.  . . . . . . . . . . . . . . . .   87
            (b)  Lease Obligations. . . . . . . . . . . . . .   88
            (c)  Mergers, Etc.  . . . . . . . . . . . . . . .   89
            (d)  Sales, Etc. of Assets. . . . . . . . . . . .   89
            (e)  Dividends, Repurchases, Etc. . . . . . . . .   90
            (f)  Investments. . . . . . . . . . . . . . . . .   91
            (g)  Change in Nature of Business.  . . . . . . .   92
            (h)  Acquisitions.  . . . . . . . . . . . . . . .   93
            (i)  Accounting Changes.  . . . . . . . . . . . .   94
            (j)  Debt.  . . . . . . . . . . . . . . . . . . .   94
            (k)  Charter Amendments.  . . . . . . . . . . . .   95
            (l)  Prepayments, Etc. of Debt. . . . . . . . . .   95
            (m)  Amendment, Etc. of Tax Agreement.  . . . . .   95
            (n)  Cancellation, Etc. of Certain Material
                 Contracts. . . . . . . . . . . . . . . . . .   96
            (o)  Negative Pledge. . . . . . . . . . . . . . .   96
            (p)  Partnerships.  . . . . . . . . . . . . . . .   96
            (q)  Capital Expenditures.  . . . . . . . . . . .   96















  <PAGE>4



                                                               iii
                             ARTICLE VI

                          EVENTS OF DEFAULT

       SECTION 6.01. Events of Default. . . . . . . . . . . .   97
       SECTION 6.02.  Actions in Respect of the Letters of
            Credit Upon Default.  . . . . . . . . . . . . . .  101

                             ARTICLE VII

                      THE ADMINISTRATIVE AGENT

       SECTION 7.01.  Authorization and Action. . . . . . . .  101
       SECTION 7.02.  Administrative Agent's Reliance, Etc. .  102
       SECTION 7.03.  Citicorp and Affiliates.  . . . . . . .  102
       SECTION 7.04.  Lender Credit Decision. . . . . . . . .  102
       SECTION 7.05.  Indemnification.  . . . . . . . . . . .  103
       SECTION 7.06.  Successor Administrative Agent. . . . .  103
       SECTION 7.07.  Co-Agents.  . . . . . . . . . . . . . .  104

                            ARTICLE VIII

                            MISCELLANEOUS

       SECTION 8.01.  Amendments, Etc.  . . . . . . . . . . .  104
       SECTION 8.02.  Notices, Etc. . . . . . . . . . . . . .  105
       SECTION 8.03.  No Waiver; Remedies.  . . . . . . . . .  105
       SECTION 8.04.  Costs; Expenses.  . . . . . . . . . . .  105
       SECTION 8.05.  Right of Set-off. . . . . . . . . . . .  107
       SECTION 8.06.  Binding Effect. . . . . . . . . . . . .  107
       SECTION 8.07.  Assignments and Participations. . . . .  108
       SECTION 8.08.  Governing Law; Submission to
            Jurisdiction. . . . . . . . . . . . . . . . . . .  111
       SECTION 8.09.  No Liability of the Issuing Bank. . . .  112
       SECTION 8.10.  Execution in Counterparts.  . . . . . .  112
       SECTION 8.11.  WAIVER OF JURY TRIAL. . . . . . . . . .  112



























  <PAGE>5



                                                                iv
  Schedule I     -    List of Commitments and Applicable Lending
                      Offices

  Schedule II    -    Surviving Debt

  Schedule III   -    Properties Subject to Environmental
                      Assessment Reports

  Schedule IV    -    List of Subsidiaries

  Schedule V     -    List of Authorizations, Etc.

  Schedule VI    -    List of Taxable Years

  Schedule VII   -    List of Existing Debt

  Schedule VIII   -   List of Owned Real Property

  Schedule IX    -    List of Certain Leases of Real Property

  Schedule X     -    List of Investments

  Schedule XI    -    List of Intellectual Property

  Schedule XII   -    List of Mortgaged Property

  Schedule XIII   -   List of Existing Liens

  Exhibit A-1    -    Form of Term A Note

  Exhibit A-2    -    Form of Term B Note

  Exhibit A-3    -    Form of Revolving Credit Note

  Exhibit B      -    Form of Assignment and Acceptance

  Exhibit C      -    Form of Notice of Borrowing

  Exhibit D      -    Terms of New Debt Securities

  Exhibit E      -    Form of Security Agreement

  Exhibit F      -    Form of Pledge Agreement

  Exhibit G      -    Form of Guaranty

  Exhibit H      -    Form of Subsidiary Guaranty

  Exhibit I      -    Form of Holdings Agreement














  <PAGE>6



                                                                 v
  Exhibit J-1    -    Form of NHL Solvency Certificate

  Exhibit J-2    -    Form of the Company Solvency Certificate

  Exhibit K      -    Form of Escrow Agreement

  Exhibit L-1    -    Opinion of James G. Richmond

  Exhibit L-2    -    Opinion of Paul, Weiss, Rifkind, Wharton &
                      Garrison

  Exhibit M      -    Form of Mortgage

  Exhibit N      -    Form of Confidentiality Letter

  Exhibit O      -    Form of Opinion of Company Counsel















































  <PAGE>7




            CREDIT AGREEMENT dated as of June 21, 1994 among NHL
  INTERMEDIATE HOLDINGS CORP. II, a Delaware corporation (the
  "Borrower"), the banks, financial institutions and other
  institutional lenders (the "Banks") listed on the signature
  pages hereof and CITICORP USA, INC. ("Citicorp"), as
  administrative agent (the "Administrative Agent") for the
  Lenders hereunder, and THE LONG-TERM CREDIT BANK OF JAPAN, LTD.,
  LOS ANGELES AGENCY, NATIONSBANK OF NORTH CAROLINA, N.A. and
  TORONTO DOMINION (TEXAS), INC., as co-agents (the "Co-Agents").


                       PRELIMINARY STATEMENTS

            (1)  National Health Laboratories Incorporated, a
  Delaware corporation and a wholly-owned subsidiary of the
  Borrower ("NHL"), organized N Acquisition Corp., a Delaware
  corporation (the "Purchaser"), to acquire control of Allied
  Clinical Laboratories, Inc., a Delaware corporation (the
  "Company").

            (2)  Pursuant to the Agreement and Plan of Merger
  dated as of May 3, 1994 (the "Merger Agreement") among NHL, the
  Purchaser and the Company, the Purchaser proposes to purchase
  pursuant to an Offer to Purchase dated May 9, 1994 (as it may be
  amended in accordance with this Agreement, the "Offer to
  Purchase") the shares of the Company's outstanding common stock,
  $.01 par value (the "Company Stock"), for $21.50 in cash per
  share (the "Tender Offer"), and promptly thereafter to
  consummate a merger (the "Merger") with the Company in which the
  Company will be the surviving corporation (the "Surviving
  Corporation").

            (3)  The Borrower has requested that the Lenders lend
  to it up to $750,000,000 in order to pay to the holders of the
  Company Stock (other than the Purchaser and its Affiliates (as
  hereinafter defined)) the cash consideration for their shares in
  the Tender Offer, finance the Merger, pay transaction fees and
  expenses, refinance certain Existing Debt (as hereinafter
  defined) of the Company and NHL and provide financing for
  general corporate purposes of NHL and its Subsidiaries (as
  hereinafter defined).  The Lenders have indicated their
  willingness to agree to lend such amounts on the terms and
  conditions of this Agreement.

            NOW, THEREFORE, in consideration of the premises and
  the mutual covenants and agreements contained herein, the
  parties hereto hereby agree as follows:
















  <PAGE>8



                              ARTICLE I

                  DEFINITIONS AND ACCOUNTING TERMS

            SECTION 1.01.  Certain Defined Terms.  As used in this
  Agreement, the following terms shall have the following meanings
  (such meanings to be equally applicable to both the singular and
  plural forms of the terms defined):

            "Acquisitions" has the meaning set forth in Section
  5.02(h).

            "Administrative Agent" has the meaning specified in
  the recital of parties to this Agreement.

            "Administrative Agent's Account" means the account of
  the Administrative Agent maintained by the Administrative Agent
  with Citibank at 399 Park Avenue, New York, New York 10043,
  Account No. 36852248.

            "Advance" means a Revolving Credit Advance, a Term A
  Advance, a Term B Advance or a Letter of Credit Advance.

            "Affiliate" means, as to any Person, any other Person
  that, directly or indirectly, controls, is controlled by or is
  under common control with such Person or is a director or
  officer of such Person.  For purposes of this definition, the
  term "control" (including the terms "controlling", "controlled
  by" and "under common control with") of a Person means the
  possession, direct or indirect, of the power to vote 5% or more
  of the Voting Stock of such Person or to direct or cause
  direction of the management and policies of such Person, whether
  through the ownership of Voting Stock, by contract or otherwise.

            "Applicable Lending Office" means, with respect to
  each Lender, such Lender's Domestic Lending Office in the case
  of a Base Rate Advance and such Lender's Eurodollar Lending
  Office in the case of a Eurodollar Rate Advance.

            "Applicable Margin" means (i) during the period from
  the First Closing through the consummation of the Merger, (a)
  with respect to Eurodollar Rate Advances, 2.0% per annum, and
  (b) with respect to Base Rate Advances,   of 1% per annum, and
  (ii) thereafter, with respect to Eurodollar Rate Advances or
  Base Rate Advances, as the case may be, the applicable
  percentage set forth in the chart below based upon the
  Performance Level of the Borrower determined by reference to the
  most recent financial statements delivered to the Administrative
  Agent pursuant to Section 5.01(t)(i) and (ii); provided,
  however, that the Applicable Margin for all Advances shall be
  decreased by 1/4 of













  <PAGE>9



  1% per annum (but in no event shall the Applicable Margin be
  less than 0% per annum) on the date (such date being the
  "Threshold Date") that the Net Cash Proceeds from the issuance
  of $200,000,000 of New Debt Securities is applied to prepay the
  Term Advances pursuant to Section 2.05(b)(i) whether or not an
  aggregate of $200,000,000 of Net Cash Proceeds has been
  received.


                                                   Eurodollar
                          Performance   Base Rate     Rate
                             Level       Margin      Margin

                          Level I        0.00%        1.25%

                          Level II       0.25%        1.50%
                          Level III      0.50%        1.75%

                          Level IV       0.75%        2.00%


            "Appropriate Lender" means, at any time, with respect
  to any of the Letter of Credit, Revolving Credit, Term A or Term
  B Facilities, a Lender which has a Commitment with respect to
  such Facility at such time.

            "Assignment and Acceptance" means an assignment and
  acceptance entered into by a Lender and an assignee of such
  Lender, and accepted by the Administrative Agent, in
  substantially the form of Exhibit B hereto.

            "Available Amount" of any Letter of Credit means, at
  any time, the maximum amount available to be drawn under such
  Letter of Credit at such time (assuming compliance at such time
  with all conditions to drawing).

            "Bank" has the meaning specified in the recital of
  parties to this Agreement.

            "Base Rate" means a fluctuating interest rate per
  annum in effect from time to time, which rate per annum shall at
  all times be equal to the highest of:

            (a)  the rate of interest announced publicly by
       Citibank in New York, New York, from time to time, as
       Citibank's base rate;

            (b)  the sum (adjusted to the nearest 1/4 of 1% or, if
       there is no nearest 1/4 of 1%, to the next higher 1/4 of
       1%) of (i) 1/2 of 1% per annum, plus (ii) the rate obtained
       by













  <PAGE>10



       dividing (A) the latest three-week moving average of
       secondary market morning offering rates in the United
       States for three-month certificates of deposit of major
       United States money market banks, such three-week moving
       average (adjusted to the basis of a year of 360 days) being
       determined weekly on each Monday (or, of such day is not a
       Business Day, on the next succeeding Business Day) for the
       three-week period ending on the previous Friday by Citibank
       on the basis of such rates reported by certificate of
       deposit dealers to and published by the Federal Reserve
       Bank of New York or, if such publication shall be suspended
       or terminated, on the basis of quotations for such rates
       received by Citibank from three New York certificate of
       deposit dealers of recognized standing selected by
       Citibank, by (B) a percentage equal to 100% minus the
       average of the daily percentages specified during such
       three-week period by the Board of Governors of the Federal
       Reserve System (or any successor thereto) for determining
       the maximum reserve requirement (including, but not limited
       to, any emergency, supplemental or other marginal reserve
       requirement) for Citibank with respect to liabilities
       consisting of or including (among other liabilities) three-
       month U.S. dollar non-personal time deposits in the United
       States, plus (iii) the average during such three-week
       period of the annual assessment rates estimated by Citibank
       for determining the then current annual assessment payable
       by Citibank to the Federal Deposit Insurance Corporation
       (or any successor thereto) for insuring U.S. dollar
       deposits of Citibank in the United States; and

            (c)  1/2 of 1% per annum above the Federal Funds Rate.

            "Base Rate Advance" means an Advance that bears
  interest as provided in Section 2.06(a)(i).

            "Borrower" has the meaning specified in the recital of
  parties to this Agreement.

            "Borrower's Account" means the account of the Borrower
  maintained by the Borrower with Citibank at 399 Park Avenue, New
  York, New York 10043, Account No. 40646949.

            "Borrowing" means a Revolving Credit Borrowing, a Term
  A Borrowing or a Term B Borrowing.

            "Business Day" means a day of the year on which
  dealings are carried on in the London interbank market and banks
  are open for business in London and not required or authorized
  to close in New York City.















  <PAGE>11



            "Calculation Period" means each twelve month period
  ending on an anniversary of the First Closing.

            "Capital Expenditures" means, for any period, the sum,
  without duplication, of (a) all expenditures during such period
  for equipment, fixed assets, real property or improvements, or
  for replacements or substitutions therefor or additions thereto,
  that have a useful life of more than one year plus (b) the
  aggregate principal amount of all Debt (including obligations
  under Capitalized Leases) assumed or incurred in connection with
  any such expenditures.

            "Capitalized Leases" has the meaning specified in
  clause (e) of the definition of Debt.

            "Cash Collateral Account" has the meaning specified in
  the Security Agreement.

            "Cash Equivalents" means any of the following, to the
  extent owned by the Borrower or its Subsidiaries free and clear
  of all Liens and having a maturity not greater than [180] days
  from the date of issuance thereof:  (a) direct obligations of
  the Government of the United States or any agency or
  instrumentality thereof or obligations unconditionally
  guaranteed by the full faith and credit of the Government of the
  United States, (b) insured certificates of deposit of or time
  deposits with any commercial bank that is a Lender or a member
  of the Federal Reserve System, issues (or the parent of which
  issues) commercial paper rated as described in clause (c), is
  organized under the laws of the United States or any State
  thereof and has combined capital and surplus of at least $1
  billion, (c) commercial paper in an aggregate amount of not more
  than $10,000,000 per issuer outstanding at any time, issued by
  any corporation organized under the laws of any State of the
  United States and rated at least "Prime-1" (or the then
  equivalent grade) by Moody's Investors Services, Inc. or "A-1"
  (or the then equivalent grade) by Standard & Poor's Ratings
  Group or (d) shares of money market mutual or similar funds
  having assets in excess of $100,000,000 and which invest
  exclusively in assets satisfying the requirements of clauses (a)
  through (c) of this definition.

            "Cash Interest Expense" means, for any fiscal period
  of the Borrower, interest expense net of interest income on all
  Debt of the Borrower and its Subsidiaries, as determined for
  such period without duplication on a Consolidated basis for the
  Borrower and its Subsidiaries and in accordance with GAAP and
  including, without limitation, to the extent not otherwise
  included in accordance with GAAP, (a) interest expense in
  respect of Debt resulting from Advances, (b) the interest
  component of obligations under leases that have been or should
  be, in












  <PAGE>12



  accordance with GAAP, recorded as Capitalized Leases, 
  (c) commissions, discounts and other fees and charges payable in
  connection with letters of credit, (d) the net payment, if any,
  payable in connection with interest rate hedge agreements and
  other interest rate protection contracts and (e) fees paid
  pursuant to Section 2.08(a), but excluding, in each case, (x)
  amortization of original issue discount, (y) the interest
  portion of any deferred payment obligation and (z) other
  interest not payable in cash.

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

            "Change of Control" means any acquisition of Control
  of the Borrower after the date hereof by any Person or two or
  more Persons acting in concert who would constitute a "group"
  within the meaning of Section 13(d)(3) of the Exchange Act
  (other than Mafco or any of its Affiliates or a group consisting
  of such Persons).

            "Citibank" means Citibank, N.A., a national banking
  association and an affiliate of Citicorp.

            "Citicorp" has the meaning specified in the recital of
  parties to this Agreement.

            "Co-Agents" has the meaning specified in the recital
  of parties to this Agreement.

            "Code" means the Internal Revenue Code of 1986, as
  amended from time to time, and the regulations promulgated and
  the rulings issued thereunder.

            "Collateral" means all "Collateral" referred to in the
  Collateral Documents and all other property that is or is
  intended to be subject to any Lien in favor of the
  Administrative Agent, the Lenders or the Issuing Bank.

            "Collateral Documents" means the Security Agreement,
  the Pledge Agreement and the Mortgages.

            "Commitment" means a Revolving Credit Commitment, a
  Term A Commitment, a Term B Commitment or a Letter of Credit
  Commitment.

            "Company" has the meaning specified in the Preliminary
  Statements.

            "Company Stock" has the meaning specified in the
  Preliminary Statements.














  <PAGE>13



            "Consolidated" for any Person refers to the
  consolidation of the financial statements of such Person and its
  Subsidiaries in accordance with GAAP.

            "Consummation of the Tender Offer" means the first
  date on which shares accepted in the Tender Offer are paid for.

            "Control" by any Person or Persons of any other Person
  means (a) beneficial ownership (within the meaning of Rule 13d-3
  of the Securities and Exchange Commission under the Exchange
  Act) by such Person or Persons, directly or indirectly, of
  Voting Stock of such other Person (or other securities
  convertible into such Voting Stock) representing 51% or more of
  the combined voting power of all Voting Stock of such other
  Person or (b) control by such Person or Persons, by contract or
  otherwise, or entry by such Person or Persons into a contract or
  agreement that, upon consummation, will result in the
  acquisition by such Person or Persons of control, over Voting
  Stock of such other Person (or other securities convertible into
  such securities) representing 51% or more of the combined voting
  power of all Voting Stock of such other Person.

            "Conversion", "Convert" and "Converted" each refers to
  a conversion of Advances of one Type into Advances of the other
  Type pursuant to Section 2.07, 2.10 or 2.15.

            "Debt" of any Person means, without duplication, (a)
  all indebtedness of such Person for borrowed money; (b) all
  Obligations of such Person for the deferred purchase price of
  property or services (other than trade payables not overdue by
  more than 60 days incurred in the ordinary course of such
  Person's business); (c) all Obligations of such Person evidenced
  by notes, bonds, debentures or other similar instruments; (d)
  all indebtedness created or arising under any conditional sale
  or other title retention agreement with respect to property
  acquired by such Person (even though the rights and remedies of
  the seller or lender under such agreement in the event of
  default are limited to repossession or sale of such property);
  (e) all Obligations of such Person as lessees under leases that
  have been or should be, in accordance with GAAP, recorded as
  capital leases ("Capitalized Leases"); (f) all Obligations,
  contingent or otherwise, of such Person under acceptance, letter
  of credit or similar facilities; (g) all Obligations of such
  Person to purchase, redeem, retire, defease or otherwise acquire
  for value any capital stock of such Person or any warrants,
  rights or options to acquire such capital stock; (h) all Debt of
  others referred to in clauses (a) through (g) above guaranteed
  directly or indirectly in any manner by such Person, or in
  effect guaranteed directly or indirectly by such Person through
  an agreement (i) to pay or purchase such Debt or to advance or














  <PAGE>14



  supply funds for the payment or purchase of such Debt, (ii) to
  purchase, sell or lease (as lessee or lessor) property, or to
  purchase or sell services, primarily for the purpose of enabling
  the debtor to make payment of such Debt or to assure the holder
  of such Debt against loss, (iii) to supply funds to or in any
  other manner invest in the debtor (including any agreement to
  pay for property or services irrespective of whether such
  property is received or such services are rendered) or (iv)
  otherwise to assure a creditor against loss; and (i) all Debt
  referred to in clauses (a) through (h) above secured by (or for
  which the holder of such Debt has an existing right, contingent
  or otherwise, to be secured by) any Lien on property (including,
  without limitation, accounts and contract rights) owned by such
  Person, even though such Person has not assumed or become liable
  for the payment of such Debt.

            "Default" means any Event of Default or any event that
  would constitute an Event of Default but for the requirement
  that notice be given or time elapse or both.

            "Defaulted Advance" means, with respect to any Lender
  at any time, the amount of any Advance required to be made by
  such Lender to the Borrower pursuant to Section 2.01 at or prior
  to such time which has not been so made as of such time; 
  provided, however, any Advance made by the Administrative Agent
  for the account of such Lender pursuant to Section 2.02(c) shall
  not be considered a Defaulted Advance even if, at such time,
  such Lender shall not have reimbursed the Administrative Agent
  therefor as provided in Section 2.02(c).  In the event that a
  portion of a Defaulted Advance shall be deemed made pursuant to
  Section 2.17(a), the remaining portion of such Defaulted Advance
  shall be considered a Defaulted Advance originally required to
  be made pursuant to Section 2.01 on the same date as the
  Defaulted Advance so deemed made in part.

            "Defaulted Amount" means, with respect to any Lender
  at any time, any amount required to be paid by such Lender to
  the Administrative Agent or any other Lender hereunder or under
  any other Loan Document at or prior to such time which has not
  been so paid as of such time, including, without limitation, any
  amount required to be paid by such Lender to (a) the Issuing
  Bank pursuant to Section 2.16(c) to purchase a portion of a
  Letter of Credit Advance made by the Issuing Bank, (b) the
  Administrative Agent pursuant to Section 2.02(c) to reimburse
  the Administrative Agent for the amount of any Advance made by
  the Administrative Agent for the account of such Lender, (c) any
  other Lender pursuant to Section 2.13 to purchase any
  participation in Advances owing to such other Lender and (d) the
  Administrative Agent pursuant to Section 7.05 to reimburse the
  Administrative Agent for such Lender's ratable share of any
  amount required to













  <PAGE>15



  be paid by the Lenders to the Administrative Agent as provided
  therein.  In the event that a portion of a Defaulted Amount
  shall be deemed paid pursuant to Section 2.17(b), the remaining
  portion of such Defaulted Amount shall be considered a Defaulted
  Amount originally required to be made hereunder or under any
  other Loan Document on the same date as the Defaulted Amount so
  deemed paid in part.

            "Defaulting Lender" means, at any time, any Lender
  that, at such time,
  (a) owes a Defaulted Advance or a Defaulted Amount or (b) shall
  take or be the subject of any action or proceeding of a type
  described in Section 6.01(e).

            "dollars" and the sign "$" each means lawful money of
  the United States.

            "Domestic Lending Office" means, with respect to any
  Lender, the office of such Lender specified as its "Domestic
  Lending Office" opposite its name on Schedule I hereto or in the
  Assignment and Acceptance pursuant to which it became a Lender,
  or such other office of such Lender as such Lender may from time
  to time specify to the Borrower and the Administrative Agent.

            "EBIT" means, for any fiscal period of the Borrower,
  net income (or net loss) plus the sum of (a) interest expense
  net of interest income, (b) income tax expense and (c)
  extraordinary losses included in net income, less extraordinary
  gains included in net income, in each case determined for such
  period without duplication on a Consolidated basis for the
  Borrower and its Subsidiaries and in accordance with GAAP.

            "EBITDA" means, for any fiscal period of the Borrower,
  EBIT plus (a) depreciation expense, (b) amortization expense and
  (c) non-cash write-offs and write-downs of amortizable and
  depreciable items, in each case determined for such period
  without duplication on a Consolidated basis for the Borrower and
  its Subsidiaries and in accordance with GAAP.

            "Eligible Assignee" means (a) any commercial bank
  organized under the laws of the United States, or any State
  thereof, and having total assets in excess of $1,000,000,000;
  (b) any savings and loan association or savings bank organized
  under the laws of the United States, or any State thereof, and
  having a net worth determined in accordance with GAAP in excess
  of $250,000,000; (c) any commercial bank organized under the
  laws of any other country that is a member of the Organization
  for Economic Cooperation and Development ("OECD") or has
  concluded special lending arrangements with the International
  Monetary Fund Associated with its General Arrangements to
  Borrow, or a













  <PAGE>16



  political subdivision of any such country, and having total
  assets in excess of $1,000,000,000, so long as such bank is
  acting through a branch or agency located in the United States,
  in the Cayman Islands or in the country in which it is organized
  or another country that is described in this clause (c); (d) the
  central bank of any country that is a member of the OECD; (e)
  any finance company, insurance company or other financial
  institution or fund (whether a corporation, partnership, trust
  or other entity) that (i) is not affiliated with the Borrower,
  (ii) is engaged in making, purchasing or otherwise investing in
  commercial loans in the ordinary course of its business and
  (iii) has total assets in excess of $250,000,000; and (f) any
  other Person (other than an Affiliate of the Borrower) approved
  by the Administrative Agent and the Borrower, such approval not
  to be unreasonably withheld.

            "Environmental Action" means any administrative,
  regulatory or judicial action, suit, demand, demand letter,
  claim, notice of non-compliance or violation, investigation,
  proceeding, consent order or consent agreement based upon or
  arising out of any Environmental Law or any Environmental
  Permit, including without limitation (a) any claim by any
  governmental or regulatory authority for enforcement, cleanup,
  removal, response, remedial or other actions or damages pursuant
  to any Environmental Law and (b) any claim by any third party
  seeking damages, contribution, or injunctive relief arising from
  alleged injury or threat of injury to health, safety or the
  environment.

            "Environmental Law" means any federal, state or local
  law, rule, regulation, order, writ, judgment, injunction,
  decree, determination or award relating to the environment,
  health or safety including, without limitation, the
  Comprehensive Environmental Response, Compensation and Liability
  Act of 1980, the Resource Conservation and Recovery Act, the
  Hazardous Materials Transportation Act, the Clean Water Act, the
  Toxic Substances Control Act, the Clean Air Act, the Safe
  Drinking Water Act, the Atomic Energy Act, the Federal
  Insecticide, Fungicide and Rodenticide Act and the Occupational
  Safety and Health Act.

            "Environmental Permit" means any permit, approval,
  identification number, license or other authorization required
  under any Environmental Law.

            "ERISA" means the Employee Retirement Income Security
  Act of 1974, as amended from time to time, and the regulations
  promulgated and ruling issued thereunder.

            "ERISA Affiliate" of any Person means any other Person
  that for purposes of Title IV of ERISA is a member of such













  <PAGE>17



  Person's controlled group, or under common control with such
  Person, within the meaning of Section 414 of the Code.

            "ERISA Event" with respect to any Person means (a) the
  occurrence of a reportable event, within the meaning of Section
  4043 of ERISA, with respect to any Plan of such Person or any of
  its ERISA Affiliates unless the 30-day notice requirement with
  respect to such event has been waived by the PBGC; (b) the
  provision by the administrator of any Plan of such Person or any
  of its ERISA Affiliates of a notice of intent to terminate such
  Plan, pursuant to Section 4041(a)(2) of ERISA (including any
  such notice with respect to a plan amendment referred to in
  Section 4041(e) of ERISA); (c) the cessation of operations at a
  facility of such Person or any of its ERISA Affiliates in the
  circumstances described in Section 4062(e) of ERISA; (d) the
  withdrawal by such Person or any of its ERISA Affiliates from a
  Multiple Employer Plan during a plan year for which it was a
  substantial employer, as defined in Section 4001(a)(2) of ERISA;
  (e) the failure by such Person or any of its ERISA Affiliates to
  make a payment to a Plan described in Section 302(f)(1) of
  ERISA; (f) the adoption of an amendment to a Plan of such Person
  or any of its ERISA Affiliates requiring the provision of
  security to such Plan, pursuant to Section 307 of ERISA; or (g)
  the institution by the PBGC of proceedings to terminate a Plan
  of such Person or any of its ERISA Affiliates, pursuant to
  Section 4042 of ERISA, or the occurrence of any event or
  condition described in Section 4042 of ERISA that would
  constitute grounds for the termination of, or the appointment of
  a trustee to administer, such Plan; provided, however, that an
  event described in clause (a), (c) or (d) of this definition, or
  in clause (b) of this definition solely with respect to a
  standard termination under Section 4041(b) of ERISA, shall be an
  ERISA Event only if such event is reasonably likely to result in
  a material liability of such Person or any of its ERISA
  Affiliates.

            "Escrow Agreement" has the meaning specified in
  Section 3.01(i)(xxi).

            "Eurocurrency Liabilities" has the meaning assigned to
  that term in Regulation D of the Board of Governors of the
  Federal Reserve System, as in effect from time to time.

            "Eurodollar Lending Office" means, with respect to any
  Lender, the office of such Lender specified as its "Eurodollar
  Lending Office" opposite its name on Schedule I hereto or in the
  Assignment and Acceptance pursuant to which it became a Lender
  (or, if no such office is specified, its Domestic Lending
  Office), or such other office of such Lender as such Lender may
  from time to time specify to the Borrower and the Administrative
  Agent.













  <PAGE>18



            "Eurodollar Rate" means, for any Interest Period for
  each Eurodollar Rate Advance comprising part of the same
  Borrowing, an interest rate per annum equal to the rate per
  annum obtained by dividing (a) the average (rounded upward to
  the nearest whole multiple of 1/100 of 1% per annum, if such
  average is not such a multiple) of the rate per annum at which
  deposits in U.S. dollars are offered by the principal office of
  Citibank in London, England to prime banks in the London
  interbank market at 11:00 A.M. (London time) two Business Days
  before the first day of such Interest Period for a period equal
  to such Interest Period by (b) a percentage equal to 100% minus
  the Eurodollar Rate Reserve Percentage for such Interest Period. 
  The Eurodollar Rate for each Interest Period for each Eurodollar
  Rate Advance comprising part of the same Borrowing shall be
  determined by the Administrative Agent on the basis of
  applicable rates furnished to and received by the Administrative
  Agent from Citibank two Business Days before the first day of
  such Interest Period, subject, however, to the provisions of
  Section 2.07.

            "Eurodollar Rate Advance" means an Advance that bears
  interest as provided in Section 2.06(a)(ii).

            "Eurodollar Rate Reserve Percentage" of any Lender for
  any Interest Period for any Eurodollar Rate Advance means the
  reserve percentage applicable during such Interest Period (or if
  more than one such percentage shall be so applicable, the daily
  average of such percentages for those days in such Interest
  Period during which any such percentage shall be so applicable)
  under regulations issued from time to time by the Board of
  Governors of the Federal Reserve System (or any successor) for
  determining the maximum reserve requirement (including, without
  limitation, any emergency, supplemental or other marginal
  reserve requirement) for such Lender with respect to liabilities
  or assets consisting of or including Eurocurrency Liabilities
  having a term equal to such Interest Period.

            "Events of Default" has the meaning specified in
  Section 6.01.

            "Exchange Act" means the Securities Exchange Act of
  1934, as amended.

            "Existing Debt" means Debt of the Borrower, NHL, the
  Company and their respective Subsidiaries outstanding
  immediately prior to the Tender Offer.

            "Facility" means the Revolving Credit Facility, the
  Term Facility or the Letter of Credit Facility.


















  <PAGE>19



            "Federal Funds Rate" means, for any period, a
  fluctuating interest rate per annum equal for each day during
  such period to the weighted average of the rates on overnight
  Federal funds transactions with members of the Federal Reserve
  System arranged by Federal funds brokers, as published for such
  day (or, if such day is not a Business Day, for the next
  preceding Business Day) by the Federal Reserve Bank of New York,
  or, if such rate is not so published for any day which is a
  Business Day, the average of the quotations for such day on such
  transactions received by the Administrative Agent from three
  Federal funds brokers of recognized standing selected by it.

            "First Closing" means the date of the initial
  Borrowing.
            "Fixed Charge Ratio" means, with respect to any period
  of four fiscal quarters, a ratio of (A) EBITDA, less the
  aggregate amount of cash Capital Expenditures made during such
  period, less the amount of any payments made by the Borrower and
  its Subsidiaries pursuant to the Tax Agreement to (B) the sum of
  (i) interest payable on, and amortization of debt discount in
  respect of, all Debt during such period, plus (ii) dividends
  paid during such period in compliance with the terms of Section
  5.02(e)(ii), (iv) or (v), plus (iii) scheduled amortization
  payments of all Debt (other than Debt of NHL payable to the
  United States of America in connection with the investigations
  with the Office of the Inspector General regarding billing
  practices) and all amounts required to be paid in respect of
  contingent purchase price payments in connection with Permitted
  Acqusitions, in each case payable during such period by the
  Borrower and its Subsidiaries.

            "Funded Debt  of any Person means Debt for borrowed
  money of such Person that by its terms matures more than one
  year after the date of its creation or matures within one year
  from such date but is renewable or extendible, at the option of
  such Person, to a date more than one year after such date or
  arises under a revolving credit or similar agreement that
  obligates the lender or lenders to extend credit during a period
  of more than one year after such date.
            "GAAP  means generally accepted accounting principles
  in the United States of America as in effect as of the date of,
  and used in, the preparation of the audited consolidated
  financial statements referred to in Section 4.01(f), except that
  (A) with respect to (x) the preparation of any financial
  statement required to be furnished pursuant to clause (i) or
  (ii) of Section 5.01(t) and (y) changes to financial statement
  presentation and accounting policies contemplated by Section
  5.02(i), "GAAP  shall mean such principles as in effect from
  time to time in the United States of America and (B) with
  respect to














  <PAGE>20



  the definition of Fixed Charge Ratio, the definition of Interest
  Coverage Ratio, the definition of Leverage Ratio and the
  covenants contained in Section 5.01(q), (r) and (s), "GAAP"
  shall, for any period prior to the consummation of the Merger
  apply to the Borrower and its Subsidiaries (other than the
  Company and its Subsidiaries) combined with the Company and its
  Subsidiaries.
            "Guarantor" means NHL Intermediate Holdings Corp. I, a
  Delaware corporation.

            "Guaranty" has the meaning specified in Section
  3.01(i)(x).

            "Hazardous Materials" means (a) petroleum or petroleum
  products, natural or synthetic gas, asbestos in any form that is
  or could become friable, urea formaldehyde foam insulation and
  radon gas, (b) any substances defined as or included in the
  definition of "hazardous substances," "hazardous wastes,"
  "hazardous materials," "extremely hazardous wastes," "restricted
  hazardous wastes," "toxic substances," "toxic pollutants,"
  "contaminants" or "pollutants," or words of similar import,
  under any Environmental Law and (c) any other substance exposure
  to which is regulated under any Environmental Law.

            "Hedge Agreements" means interest rate swap, cap or
  collar agreements, interest rate future or option contracts,
  currency swap agreements, currency future or option contracts
  and other similar agreements.
            "Indemnified Party" has the meaning specified in
  Section 8.04(c).

            "Initial Date"  means, for purposes of Section 2.12,
  in the case of the Administrative Agent and each Bank, the date
  of its execution and delivery of this Agreement and, in the case
  of each Lender other than a Bank, the date of the Assignment and
  Acceptance pursuant to which it becomes a Lender.

            "Interest Coverage Ratio" means, with respect to any
  fiscal quarter, the ratio of EBITDA to Cash Interest Expense, in
  each case in the aggregate for the four fiscal quarters ended at
  the end of such fiscal quarter.

            "Interest Period" means, for each Eurodollar Rate
  Advance comprising part of the same Borrowing, the period
  commencing on the date of such Eurodollar Rate Advance or the
  date of the Conversion of any Base Rate Advance into such
  Eurodollar Rate Advance and ending on the last day of the period
  selected by the Borrower pursuant to the provisions below and,
















  <PAGE>21



  thereafter, each subsequent period commencing on the last day of
  the immediately preceding Interest Period and ending on the last
  day of the periods elected by the Borrower pursuant to the
  provisions below.  The duration of each such Interest Period
  shall be one, two, three or six months as the Borrower may, upon
  notice received by the Administrative Agent not later than 11:00
  A.M. (New York City time) on the third Business Day prior to the
  first day of such Interest Period, select; provided, however,
  that:

            (i)  the Borrower may not select any Interest Period
       which ends after any principal repayment installment date
       unless, after giving effect to such selection, the
       aggregate principal amount of Base Rate Advances and of
       Eurodollar Rate Advances having Interest Periods that end
       on or prior to such principal repayment installment date
       shall be at least equal to the aggregate principal amount
       of such Advances due and payable on or prior to such dates;

            (ii) whenever the last day of any Interest Period
       would otherwise occur on a day other than a Business Day,
       the last day of such Interest Period shall be extended to
       occur on the next succeeding Business Day, provided that,
       if such extension would cause the last day of such Interest
       Period to occur in the next following calendar month, the
       last day of such Interest Period shall occur on the next
       preceding Business Day; and

            (iii)     whenever the first day of any Interest
       Period occurs on a day in a calendar month for which there
       is no numerically corresponding day in the calendar month
       that succeeds such initial calendar month by the number of
       months equal to the number of months in such Interest
       Period, such Interest Period shall end on the last Business
       Day of such succeeding calendar month.

            "Investment" in any Person means any loan or advance
  to such Person, any purchase or other acquisition of any capital
  stock, warrants, rights, options, debt obligations or other
  securities of such Person, any capital contribution to such
  Person or any other investment in such Person, including,
  without limitation, any arrangement pursuant to which the
  investor incurs Debt of the types referred to in clauses (h) and
  (i) of the definition of "Debt" in respect of such Person.

            "Issuing Bank" means Citibank, N.A., or such other
  designee of Citicorp as Citicorp may designate.

















  <PAGE>22



            "Large Acquisition" means an Acquisition the Purchase
  Price of which is equal to or greater than $10,000,000 but less
  than or equal to $25,000,000.

            "Large Acquisition Basket" means, for any Calculation
  Period, (x) $75,000,000 if the Threshold Date has not occurred
  and (y) $100,000,000 if the Threshold Date has occurred.

            "L/C Cash Collateral Account" has the meaning
  specified in the Security Agreement.

            "L/C Related Documents" has the meaning specified in
  Section 2.16(d).

            "Lenders" means the Banks listed on the signature
  pages hereof and each Eligible Assignee that shall become a
  party hereto pursuant to Section 8.07 and each assignee that
  shall become a party hereto pursuant to Section 2.14.

            "Letter of Credit" has the meaning specified in
  Section 2.16(a).

            "Letter of Credit Advance" means an advance made by
  the Issuing Bank or any Revolving Credit Lender pursuant to
  Section 2.16(c).

            "Letter of Credit Agreement" has the meaning specified
  in Section 2.16(b).

            "Letter of Credit Commitment" means, with respect to
  the Issuing Bank at any time, the amount set forth opposite the
  Issuing Bank's name on Schedule I hereto under the caption
  "Letter of Credit Commitment" or, if the Issuing Bank has
  entered into one or more Assignments and Acceptances, set forth
  for the Issuing Bank in the Register maintained by the
  Administrative Agent pursuant to Section 8.07(c) as the Issuing
  Bank's "Letter of Credit Commitment", as such amount may be
  reduced at or prior to such time pursuant to Section 2.04.

            "Letter of Credit Facility" means the amount of the
  Letter of Credit Commitment of the Issuing Bank.
            "Level I" means, as of any date of determination, that
  the Borrower maintained for the last fiscal quarter for which
  financial statements have been delivered to the Administrative
  Agent (i) an Interest Coverage Ratio greater than or equal to
  5:1 and (ii) a Leverage Ratio of less than or equal to 2.5:1.
            "Level II" means, as of any date of determination,
  that (i) the performance of the Borrower does not meet the
















  <PAGE>23



  requirements of Level I and (ii) the Borrower maintained for the
  last fiscal quarter for which financial statements have been
  delivered to the Administrative Agent (x) an Interest Coverage
  Ratio of greater than or equal to 4:1 and (y) a Leverage Ratio
  of less than or equal to 3:1.

            "Level III" means, as of any date of determination,
  that (i) the performance of the Borrower does not meet the
  requirements of Level I or Level II and (ii) the Borrower
  maintained for the last fiscal quarter for which financial
  statements have been delivered to the Administrative Agent (x)
  an Interest Coverage Ratio of greater than or equal to 3.5:1 and
  (y) a Leverage Ratio of less than or equal to 3.5:1.

            "Level IV" means, as of any date of determination,
  that the performance of the Borrower does not meet the
  requirements of Level I, Level II or Level III.

            "Leverage Ratio" means, with respect to any fiscal
  quarter, the ratio of (i) the total Funded Debt of the Borrower
  and its Subsidiaries as of the last day of such period to (ii)
  Consolidated EBITDA of the Borrower and its Subsidiaries, in
  each case in the aggregate for the four fiscal quarters ended at
  the end of such fiscal quarter. 

            "Lien" means any lien, security interest or other
  charge or encumbrance of any kind, or any other type of
  preferential arrangement, including, without limitation, the
  lien or retained security title of a conditional vendor and any
  easement, right of way or other encumbrance on title to real
  property.

            "Loan Documents" means this Agreement, the Notes, the
  Guaranty, the Subsidiary Guaranty, the Collateral Documents, the
  Public Holdings Agreement, the Escrow Agreement and each Letter
  of Credit Agreement.

            "Loan Parties" means the Borrower, the Guarantor and
  the Subsidiary Guarantors.

            "Mafco" means Mafco Holdings Inc., a Delaware
  corporation.
            "Margin Stock" has the meaning specified in Regulation
  U of the Board of Governors of the Federal Reserve System and
  any successor regulations thereto, as in effect from time to
  time.
            "Material Adverse Change" means, with respect to any
  Person,  a material adverse change in the condition (financial
  or otherwise), operations, assets, business or prospects of such















  <PAGE>24



  Person and its Subsidiaries, taken as a whole; provided,
  however, that for purposes of Section 3.01, Section 3.02(a)(i)
  and Section 4.01 such term shall exclude, with respect to the
  Company, any such change or effect resulting from (i) the 
  subpoena received by the Company in 1993 from the Office of
  Inspector General and the United States Attorneys Office for the
  Southern District of California relating to Medicare billing
  practices, and any developments, investigations or charges
  relating to the Company and its Subsidiaries arising therefrom
  or relating thereto, (ii) the subpoena received by the Company
  in April of 1994 relating to Medicare billing practices at the
  clinical laboratory located in Cincinnati, Ohio, and any
  developments, investigations or charges relating to the Company
  and its Subsidiaries arising therefrom or relating thereto,
  (iii) the assessment from the Internal Revenue Service relating
  to the amortization by the Company of intangible assets for the
  years 1989, 1990 and 1991, or any future assessment relating to
  the Company based on the same issue for subsequent years, and
  any developments relating to the Company and its Subsidiaries
  arising therefrom or relating thereto, (iv) any change in laws, 
  rules and regulations (federal, state or local) or reimbursement
  practices, including, without limitation, changes relating to
  Medicare, Medicaid, CHAMPUS program, and carrier billing
  practices, so long as the same are not, in the aggregate,
  material to NHL and its Subsidiaries taken as a whole, or (v)
  changes relating to the cancellation, termination or non-renewal
  by customers (including, without limitation, (x) doctors that
  refer specimens to the Company and (y) hospitals, health
  maintenance organizations, preferred provider organizations and
  the laboratories which the Company manages) of the Company or
  any of its Subsidiaries of their relationships with the Company
  or any of its Subsidiaries or the voluntary termination by
  existing general managers, sales managers or sales
  representatives from and after the date of the public
  announcement of the Merger Agreement, unless and to the extent 
  such cancellations, terminations or non-renewals are directly
  attributable to factors other than the transactions contemplated
  by the Merger Agreement, so long as the same are not, in the
  aggregate, material to NHL and its Subsidiaries taken as a
  whole.
            "Material Adverse Effect" means, with respect to any
  Person, a material adverse effect upon (a) the condition
  (financial or otherwise), operations, assets, business or
  prospects of such Person and its Subsidiaries, taken as a whole,
  or (b) the ability of a Loan Party to perform its obligations
  under any Loan Document, or (c) the rights and remedies of the
  Administrative Agent or any Lender under any Loan Document;
  provided, however, that for purposes of Section 3.01, Section
  3.02(a)(i) and Section 4.01 hereof, such term shall exclude,
  with respect to the Company, any such change or effect resulting
  from (i) the subpoena received by the Company in 1993 from the Office 








 





  <PAGE>25



  of Inspector General and the United States Attorneys Office for
  the Southern District of California relating to Medicare billing
  practices, and any developments, investigations or charges
  relating to the Company and its Subsidiaries arising therefrom
  or relating thereto, (ii) the subpoena received by the Company
  in April of 1994 relating to Medicare billing practices at the
  clinical laboratory located in Cincinnati, Ohio, and any
  developments, investigations or charges relating to the Company
  and its Subsidiaries arising therefrom or relating thereto,
  (iii) the assessment from the Internal Revenue Service relating
  to the amortization by the Company of intangible assets for the
  years 1989, 1990 and 1991, or any future assessment relating to
  the Company based on the same issue for subsequent years, and
  any developments relating to the Company and its Subsidiaries
  arising therefrom or relating thereto, (iv) any change in laws,
  rules and regulations (federal, state or local) or reimbursement
  practices, including, without limitation, changes relating to
  Medicare, Medicaid, CHAMPUS program, and carrier billing
  practices, so long as the same are not, in the aggregate,
  material to NHL and its Subsidiaries taken as a whole, or (v)
  changes relating to the cancellation, termination or non-renewal
  by customers (including, without limitation, (x) doctors that
  refer specimens to the Company and (y) hospitals, health 
  maintenance organizations, preferred provider organizations and
  the laboratories which the Company manages) of the Company or
  any of its Subsidiaries of their relationships with the Company
  or any of its Subsidiaries or the voluntary termination by
  existing general managers, sales managers or sales
  representatives from and after the date of the public
  announcement of the Merger Agreement, unless and to the extent
  such cancellations, terminations or non-renewals are directly
  attributable to factors other than the transactions contemplated
  by the Merger Agreement, so long as the same are not, in the
  aggregate, material to NHL and its Subsidiaries taken as a
  whole.
            "Material Contract" means, as to the Borrower or any
  of its Subsidiaries, each contract to which such Person is a
  party which is either (a) a lease of real properties or a
  contract for the purchase or sale of goods or services
  (i) which, if lost, would not be replaceable promptly by
  commercially reasonable substitutes and (ii) the loss of which, 
  if not so replaced, would be reasonably likely to have a
  Material Adverse Effect (in the case of clause (a) of the
  definition of Material Adverse Effect, the term "Person" shall
  mean the Borrower), or (b) any other contract (i) involving
  aggregate consideration payable to or by such Person of
  $10,000,000 or more or (ii) the loss of which would be
  reasonably likely to have a Material Adverse Effect (in the case
  of clause (a) of the definition of Material Adverse Effect, the
  term "Person" shall mean the Borrower).

















  <PAGE>26



            "Materially Different Business" means a business or
  line of business that is materially different from the business
  carried on as of the date hereof by the Borrower and its
  Subsidiaries taken as a whole.
            "Maximum Acquisition Basket" means (x) $150,000,000 if
  the Threshold Date has not occurred and (y) $200,000,000 if the
  Threshold Date has occurred.

            "Merger" has the meaning specified in the Preliminary
  Statements.

            "Merger Agreement" has the meaning specified in the
  Preliminary Statements.

            "Mortgage Policy" has the meaning specified in Section
  5.01(o)(ii) .

            "Mortgages" has the meaning specified in Section
  5.01(o).
            "Multiemployer Plan" of any Person means a
  multiemployer plan, as defined in Section 4001(a)(3) of ERISA,
  which is subject to Title IV of ERISA, and to which such Person 
  or any of its ERISA Affiliates is making or accruing an
  obligation to make contributions, or has within any of the
  preceding five plan years made or accrued an obligation to make
  contributions.
            "Multiple Employer Plan" of any Person means a single
  employer plan, as defined in Section 4001(a)(15) of ERISA, which
  is subject to Title IV of ERISA, and (a) that is maintained for
  employees of such Person or any of its ERISA Affiliates and at
  least one Person other than such Person and its ERISA Affiliates
  or (b) that was so maintained and in respect of which such
  Person or any of its ERISA Affiliates could have liability under
  Section 4064 or 4069 of ERISA in the event such plan has been or
  were to be terminated.
            "Net Cash Proceeds" means, with respect to any sale,
  lease, transfer or other disposition of any asset or the sale or
  issuance by any Person of any Debt or capital stock, any
  securities convertible into or exchangeable for capital stock or
  any warrants, rights or options to acquire capital stock, the 
  aggregate amount of cash received from time to time by or on
  behalf of such Person in connection with such transaction after
  deducting therefrom only (a) reasonable and customary brokerage
  commissions, underwriting fees and discounts, legal fees and
  expenses, finder's fees, accountants' fees and expenses and
  other similar fees, expenses and commissions, (b) the amount of
  taxes



















  <PAGE>27



  payable or estimated in good faith to be payable in connection
  with or as a result of such transaction and (c) the amount of
  any Debt  that, by the terms of such transaction or the terms of
  such Debt, is required to be repaid upon such disposition, in
  each case to the extent, but only to the extent, that the 
  amounts so deducted are payable to a Person that is not an
  Affiliate (other than such amounts that are payable by the
  Borrower and its Subsidiaries to an Affiliate pursuant to the
  Tax Agreement) and are properly attributable to such transaction
  or to the asset that is the subject thereof.

            "Net Income" means, for any Person in any period, the
  net income of such Person and its Subsidiaries on a Consolidated
  basis for such period, as determined in accordance with GAAP.

            "New Debt Documents" means the agreements, indentures
  and instruments pursuant to which the New Debt Securities are
  issued, as they may be amended in accordance with this
  Agreement.

            "New Debt Securities" means the long-term fixed rate
  senior unsecured Debt of the Borrower that contains the term and
  conditions set forth in Exhibit D hereto and other terms and 
  conditions satisfactory to the Required Lenders.

            "NHL" has the meaning specified in the Preliminary
  Statements.

            "Nonratable Assignment" means an assignment by a
  Lender pursuant to Section 8.07(a) of a portion of its rights
  and obligations under this Agreement, other than an assignment
  of a uniform, and not a varying, percentage of all of the rights
  and obligations of the Lenders under and in respect of all of
  the Facilities.

            "Note" means a Revolving Credit Note, a Term A Note or
  a Term B Note.

            "1994 Credit Agreement" means the $50,000,000 Credit
  Agreement dated as of April 7, 1994 between NHL and Citicorp, as
  the same may be amended, supplemented or otherwise modified from 
  time to time.

            "1993 Credit Agreement" means the $350,000,000 Credit
  Agreement dated as of August 27, 1993 among NHL, the lenders
  party thereto and Citicorp, as agent and arranger, and Banque
  Paribas, The Long Term Credit Bank of Japan, Ltd., Los Angeles
  Agency, NationsBank of North Carolina, N.A., and The Toronto-
  Dominion Bank, as co-agents, as the same may have been and may
  be amended, supplemented or otherwise modified from time to
  time.
















  <PAGE>28



            "Notice of Borrowing" has the meaning specified in
  Section 2.02(a).

            "Notice of Issuance" has the meaning specified in
  Section 2.16(b)(i).
            "Obligation" means, with respect to any Person, any
  payment, performance or other obligation of such Person of any
  kind, including, without limitation, any liability of such
  Person on any claim, whether or not the right of any creditor to
  payment in respect of such claim is reduced to judgment,
  liquidated, unliquidated, fixed, contingent, matured, disputed,
  undisputed, legal, equitable, secured or unsecured, and whether
  or not such claim is discharged, stayed or otherwise affected by
  any proceeding referred to in Section 6.01(e).  Without limiting
  the generality of the foregoing, the Obligations of the Loan
  Parties under the Loan Documents include (a) the obligation to
  pay principal, interest, Letter of Credit commissions, charges,
  expenses, fees, attorneys' fees and disbursements, indemnities
  and other amounts payable by any Loan Party under any Loan
  Document and (b) the obligation to reimburse any amount in
  respect of any of the foregoing that any Lender, in its sole
  discretion, may elect to pay or advance on behalf of such Loan Party.

            "Offer to Purchase" has the meaning specified in the
  Preliminary Statements.

            "Other Taxes" has the meaning specified in
  Section 2.12(b).

            "PBGC" means the Pension Benefit Guaranty Corporation,
  or any successor agency or entity performing substantially the
  same functions.

            "Performance Level" means Level I, Level II, Level III
  or Level IV.

            "Permitted Acquisition" means any Acquisition
  permitted under Section 5.02(h).
            "Permitted Encumbrances" has the meaning specified in
  the Mortgages.

            "Person" means an individual, partnership, corporation
  (including a business trust), joint stock company, trust,
  unincorporated association, joint venture or other entity, or a
  government or any political subdivision or agency thereof.



















  <PAGE>29



            "Plan" means a Single Employer Plan or a Multiple
  Employer Plan.

            "Pledge Agreement" has the meaning specified in
  Section 3.01(i)(ix).
            "Preferred Stock" means, with respect to any
  corporation, capital stock issued by such corporation that is
  entitled to a preference or priority over any other capital
  stock issued by such corporation upon any distribution of such
  corporation's assets, whether by dividend or upon liquidation.

            "Pro Rata Share" of any amount means, with respect to
  any Revolving Credit Lender (but not in any such Lender's
  capacity as an Issuing Bank) at any time, the product of (a) a
  fraction the numerator of which is the amount of such Lender's
  Revolving Credit Commitment at such time and the denominator of
  which is the Revolving Credit Facility at such time times
  (b) such amount.

            "Proxy Statement" means the Proxy Statement mailed to
  the Company's shareholders in connection with the Merger. 
            "Public Holdings" means National Health Laboratories
  Holdings Inc., a Delaware corporation.

            "Public Holdings Agreement" has the meaning specified
  in Section 3.01(i)(xii).

            "Purchase Price" means, with respect to any
  Acquisition or proposed Acquisition, the consideration paid or
  to be paid for such Acquisition in cash and property (including,
  without limitation, all liabilities assumed, Debt incurred and
  equity issued by the Borrower or any of its Subsidiaries in
  connection with such Acquisition).

            "Redeemable" means, with respect to any capital stock,
  Debt or other right or Obligation, any such right or Obligation
  that (a) the issuer has undertaken to redeem at a fixed or
  determinable date or dates, whether by operation of a sinking
  fund or otherwise, or upon the occurrence of a condition not 
  solely within the control of the issuer or (b) is redeemable at
  the option of the holder.

            "Register" has the meaning specified in Section
  8.07(c).

            "Related Documents" means the Merger Agreement, the
  Offer to Purchase, the New Debt Documents and the Tax Agreement.


















  <PAGE>30



            "Required Lenders" means at any time Lenders holding
  at least a majority of the sum of (a) the aggregate principal
  amount of the Advances outstanding at such time, (b) the
  aggregate Available Amount of all Letters of Credit outstanding
  at such time, (c) the aggregate unused Term A Commitments and 
  (d) the aggregate unused Term B Commitments plus the aggregate
  unused Revolving Credit Commitments at such time (provided that,
  for purposes hereof, neither the Borrower, nor any of its
  Affiliates, if a Lender, shall be included in (a) the Lenders
  holding such amount of the Advances or having such amount of the
  Commitments or (b) determining the aggregate unpaid principal
  amount of the Advances or the total Commitments); provided,
  however, if any Lender shall be a Defaulting Lender at such
  time, there shall be excluded from the determination of Required
  Lenders at such time   (i) the aggregate principal amount of the
  Advances made by such Lender and outstanding at such time, (ii)
  if such Lender shall be the Issuing Bank, the aggregate
  Available Amount of all Letters of Credit issued by such Lender
  and outstanding at such time and (iii) the aggregate commitments
  of such Lender under all the Facilities at such time.  For
  purposes of this definition, the Available Amount of each Letter
  of Credit shall be considered to be owed to the Revolving Credit
  Lenders ratably in accordance with their respective Revolving 
  Credit Commitments.

            "Revolving Credit Advance" has the meaning specified
  in Section 2.01(c).

            "Revolving Credit Borrowing" means a borrowing
  consisting of simultaneous Revolving Credit Advances of the same
  Type made by the Revolving Credit Lenders.

            "Revolving Credit Commitment" means, with respect to
  any Revolving Credit Lender at any time, the amount set forth
  opposite such Lender's name on Schedule I hereto under the
  caption "Revolving Credit Commitment" or, if such Lender has
  entered into one or more Assignments and Acceptances, set forth
  for such Lender in the Register maintained by the Administrative
  Agent pursuant to Section 8.07(c) as such Lender's "Revolving
  Credit Commitment", as such amount may be reduced at or prior to
  such time pursuant to Section 2.04.
            "Revolving Credit Facility" means, at any time, the
  aggregate amount of the Revolving Credit Lenders' Revolving
  Credit Commitments at such time.

            "Revolving Credit Lender" means any Lender that has a
  Revolving Credit Commitment.

            "Revolving Credit Note" means a promissory note of the
  Borrower payable to the order of any Revolving Credit Lender, in
















  <PAGE>31



  substantially the form of Exhibit A-3 hereto, evidencing the
  aggregate indebtedness of the Borrower to such Lender resulting
  from the Revolving Credit Advances made by such Lender.

            "Security Agreement" has the meaning specified in 
  Section 3.01(i)(viii).

            "Single Employer Plan" of any Person means a single
  employer plan, as defined in Section 4001(a)(15) of ERISA, which
  is subject to Title IV of ERISA, and (a) that is maintained for
  employees of such Person or any of its ERISA Affiliates and no
  Person other than such Person and its ERISA Affiliates or (b) in
  respect of which such Person or any of its ERISA Affiliates
  could have liability under Section 4069 of ERISA in the event
  such plan has been or were to be terminated.

            "Small Acquisition" means any Acquisition the Purchase
  Price of which is less than $10,000,000.

            "Small Acquisition Basket" means, for any Calculation
  Period, $50,000,000.

            "Solvent" and "Solvency" mean, with respect to any 
  Person on a particular date, that on such date (a) the fair
  value of the property of such Person is greater than the total
  amount of liabilities, including, without limitation, contingent
  liabilities, of such Person, (b) the present fair salable value
  of the assets of such Person is not less than the amount that
  will be required to pay the probable liability of such Person on
  its debts as they become absolute and matured, (c) such Person
  does not intend to, and does not believe that it will, incur
  debts or liabilities beyond such Person's ability to pay as such
  debts and liabilities mature and (d) such Person is not engaged
  in business or a transaction, and is not about to engage in
  business or a transaction, for which such Person's property
  would constitute an unreasonably small capital. The amount of
  contingent liabilities at any time shall be computed as the
  amount that, in the light of all the facts and circumstances
  existing at such time, represents the amount that can reasonably
  be expected to become an actual or matured liability.
            "Standby Letter of Credit" means any Letter of Credit
  issued under the Letter of Credit Facility, other than a Trade
  Letter of Credit.

            "Stockholders  Equity" means stockholders  equity of
  the Borrower and its Subsidiaries on a Consolidated basis, as
  determined in accordance with GAAP, plus the aggregate amount of
  dividends paid by the Borrower since the date hereof that were
  applied or set apart to be applied  to the repurchase by Public

















  <PAGE>32



  Holdings of its capital stock; provided, however that the
  aggregate amount of dividends paid by the Borrower since the
  date hereof that were applied or set apart to be applied to the
  repurchase by Public Holdings of its capital stock shall not be
  added back for purposes of determining whether or not the 
  Borrower is in compliance with the financial covenant test set
  forth in 5.02(e)(iv).

            "Subsidiary" of any Person means any corporation,
  partnership, joint venture, trust or estate of which (or in
  which) more than 50% of (a) the Voting Stock of such
  corporation, (b) the interest in the capital or profits of such
  partnership or joint venture or (c) the beneficial interest in
  such trust or estate is at the time directly or indirectly owned
  or controlled by such Person, by such Person and one or more of
  its other Subsidiaries or by one or more of such Person s other
  Subsidiaries.

            "Subsidiary Guarantors" means all Subsidiaries of the
  Borrower that are organized under the laws of a state of the
  United States of America (other than, prior to the consummation
  of the Merger, the Company and its Subsidiaries).
            "Subsidiary Guaranty" has the meaning specified in
  Section 3.01(i)(xi).

            "Surviving Debt" has the meaning specified in Section
  3.01(d).

            "Surviving Debt Agreement" means any agreement or
  instrument setting forth the terms and conditions of any
  Surviving Debt.

            "Tax Agreement" means the Tax Agreement dated as of
  January 1, 1994 among Public Holdings, the Guarantor, the
  Borrower and NHL, as it may be amended in accordance with the
  terms of this Agreement.

            "Tax Certificate" has the meaning specified in Section
  5.01(t)(xiii).
            "Taxes" has the meaning specified in Section 2.12(a).

            "Term A Advance" has the meaning specified in
  Section 2.01(a).

            "Term A Borrowing" means a borrowing consisting of
  simultaneous Term A Advances of the same Type made by the Term A
  Lenders.


















  <PAGE>33



            "Term A Commitment" means, with respect to any Term A
  Lender at any time, the amount set forth opposite such Lender's
  name on Schedule I hereto under the caption "Term A Commitment"
  or, if such Lender has entered into one or more Assignments and
  Acceptances, set forth for such Lender in the Register 
  maintained by the Administrative Agent pursuant to
  Section 8.07(c) as such Lender's "Term A Commitment", as such
  amount may be reduced at or prior to such time pursuant to
  Section 2.04.

            "Term A Facility" means, at any time, the aggregate
  amount of the Term A Lenders' Term A Commitments at such time.

            "Term A Lender" means any Lender that has a Term A
  Commitment.

            "Term A Note" means a promissory note of the Borrower
  payable to the order of any Term A Lender, in substantially the
  form of Exhibit A-1 hereto, evidencing the indebtedness of the
  Borrower to such Lender resulting from the Term A Advance made
  by such Lender.

            "Term B Advance"  has the meaning specified in Section
   2.01(b).

            "Term B Borrowing"  means a borrowing consisting of
  simultaneous Term B Advances of the same Type made by the Term B
  Lenders.

            "Term B Commitment"  means, with respect to any Term B
  Lender at any time, the amount set forth opposite such Lender's
  name on Schedule I hereto under the caption "Term B Commitment"
  or, if such Lender has entered into one or more Assignments and
  Acceptances set forth for such Lender in the Register maintained
  by the Administrative Agent pursuant to Section 8.07 (c) as such
  Lender's "Term B Commitment", as such amount may be reduced at
  or prior to such time pursuant to Section 2.04.

            "Term B Facility"  means, at any time, the aggregate
  amount of the Term B Lenders' Term B Commitments at such time.
            "Term B Lender" means any Lender that has a Term B
  Commitment.

            "Term B Note"  means a promissory note of the Borrower
  payable to the order of any Term B Lender, in substantially the
  form of Exhibit A-2 hereto, evidencing the indebtedness of the
  Borrower to such Lender resulting from the Term B Advance made
  by such Lender.


















  <PAGE>34



            "Termination Date" means the earlier of (a) December
  31, 2000 or (b) the date of termination in whole of the
  Commitments pursuant to Section 2.04 or 6.01.

            "Threshold Date" has the meaning specified in the
  definition of "Applicable Margin."

            "Total Commitment" means, with respect to each Lender
  at any time, the aggregate of such Lender's Term A Commitment,
  Term B Commitment and Revolving Credit Commitment at such time.

            "Trade Letter of Credit" means any Letter of Credit
  that is issued under the Letter of Credit Facility for the
  benefit of a supplier of inventory to the Borrower or any of its
  Subsidiaries to effect payment for such inventory, the
  conditions to drawing under which include the presentation to
  the Issuing Bank of negotiable bills of lading, invoices and
  related documents sufficient, in the judgment of the Issuing
  Bank, to create a valid and perfected Lien on such inventory.

            "Type" refers to the distinction between Advances
  bearing interest at the Base Rate and Advances bearing interest
  at the Eurodollar Rate.
            "Unfunded Pension Liabilities" with respect to any
  Plan means the excess, if any, of its accumulated benefit
  obligation, as determined in accordance with Statement of
  Financial Accounting Standards No. 87  or any successor thereto
  (based on interest, mortality and other relevant actuarial
  assumptions used to fund such Plan as of its most recent
  actuarial valuation), over the fair market value of its assets
  (as of such date).

            "Unused Revolving Credit Commitment" means, with
  respect to any Revolving Credit Lender (but not in any such
  Lender's capacity as an Issuing Bank) at any time, (a) such
  Lender's Revolving Credit Commitment at such time, minus (b) the
  sum of (i) the aggregate principal amount of all Revolving
  Credit Advances and Letter of Credit Advances made by such
  Lender under the Revolving Credit Facility and outstanding at
  such time, plus (ii) such Lender's Pro Rata Share of (A) the 
  aggregate Available Amount of all Letters of Credit outstanding
  at such time and (B) the aggregate principal amount of all
  Letter of Credit Advances made by the Issuing Bank pursuant to
  Section 2.16(c) and outstanding at such time other than any such
  Letter of Credit Advance which, at or prior to such time, has
  been assigned in part to such Revolving Credit Lender pursuant
  to Section 2.16(c).

            "Voting Stock" means capital stock issued by a
  corporation, or equivalent interests in any other Person, the
















  <PAGE>35



  holders of which are ordinarily, in the absence of
  contingencies, 




  <PAGE>36



  entitled to vote for the election of directors (or persons
  performing similar functions) of such Person, even though the
  right so to vote has been suspended by the happening of such a
  contingency.
            "Welfare Plan" means a welfare plan, as defined in
  Section 3(1) of ERISA.

            "Withdrawal Liability" has the meaning specified in
  Part I of Subtitle E of Part IV of ERISA.

            SECTION 1.02.  Computation of Time Periods.  In this
  Agreement in the computation of periods of time from a specified
  date to a later specified date, the word "from" means "from and
  including" and the words "to" and "until" each means "to but
  excluding".

            SECTION 1.03.  Accounting Terms.  All accounting terms
  not specifically defined herein shall be construed in accordance
  with GAAP.


                             ARTICLE II
                  AMOUNTS AND TERMS OF THE ADVANCES

            SECTION 2.01.  The Advances.  (a)  The Term A
  Advances.  Each Term A Lender severally agrees, on the terms and
  conditions hereinafter set forth, to make up to two advances
  (each a "Term A Advance") on any Business Day during the period
  from the date hereof until October 15, 1994 in an aggregate
  amount not to exceed such Lender's Term A Commitment on such
  Business Day; provided, however, that the first Term A Advance
  shall be made on the date of the repayment of the 1993 Credit
  Agreement and the 1994 Credit Agreement and the second Term A
  Advance, if any, shall be made on the date of the Consummation
  of the Tender Offer.  Amounts borrowed under this Section
  2.01(a) and repaid or prepaid may not be reborrowed.  

            (b)  The Term B Advances.  Each Term B Lender
  severally agrees, on the terms and conditions hereinafter set 
  forth, to make up to three advances (each a "Term B Advance") on
  any Business Day during the period from the date hereof until
  October 15, 1994 in an aggregate amount not to exceed such
  Lender's Term B Commitment on such Business Day ; provided,
  however, that the first Term B Advance shall be made on the date
  of the repayment of the 1993 Credit Agreement and the 1994
  Credit Agreement, the second Term B Advance shall be made on the
  date of the Consummation of the Tender Offer and the third Term
  B Advance, if any, shall be made on the date of the consummation
  of the Merger.
















  <PAGE>37



  Amounts borrowed under this Section 2.01(b) and repaid or
  prepaid may not be reborrowed.

            (c)  The Revolving Credit Advances.  Each Revolving
  Credit Lender severally agrees, on the terms and conditions 
  hereinafter set forth, to make advances (each a "Revolving
  Credit Advance") to the Borrower from time to time on any
  Business Day during the period from the date hereof until the
  Termination Date in an aggregate amount not to exceed at any
  time outstanding such Lender s Revolving Credit Commitment on
  such Business Day.  Each Revolving Credit Borrowing shall be in
  an aggregate amount not less than $10,000,000 or an integral
  multiple of $1,000,000 in excess thereof and shall consist of
  Advances made on the same day by the Revolving Credit Lenders
  ratably according to their respective Revolving Credit
  Commitments.  Within the limits of each Revolving Credit
  Lender s Unused Revolving Credit Commitment in effect from time
  to time, the Borrower may borrow, prepay pursuant to Section
  2.05(a) and reborrow under this Section 2.01(c).

            SECTION 2.02.  Making the Advances.  (a)  Except as
  otherwise provided in Section 2.16, each Borrowing shall be made
  on notice given not later than 11:00 A.M. (New York City time) 
  on the first Business Day prior to the date of a proposed Base
  Rate Borrowing or the third Business Day prior to the date of a
  proposed Eurodollar Rate Borrowing, by the Borrower to the
  Administrative Agent, which shall give to each Appropriate
  Lender prompt notice thereof by telecopier, telex or cable. 
  Each such notice of a Borrowing (a "Notice of Borrowing") shall
  be by telecopier, telex or cable, and, with respect to a Notice
  of Borrowing by telex or cable, confirmed immediately thereafter
  in writing, in substantially the form of Exhibit C hereto,
  specifying therein the requested (i) date of such Borrowing,
  (ii) Facility under which such Borrowing is to be made, (iii)
  Type of Advances comprising such Borrowing, (iv) aggregate
  amount of such Borrowing and (v) Interest Period for each
  Eurodollar Rate Advance included in such Borrowing.  In the case
  of a proposed Borrowing comprised of Eurodollar Rate Advances,
  the Administrative Agent shall promptly notify the Borrower and
  each Appropriate Lender of the applicable interest rate under
  Section 2.06(a)(ii).  Each Appropriate Lender shall, before 
  12:00 Noon (New York City time) on the date of such Borrowing,
  make available for the account of its Applicable Lending Office
  to the Administrative Agent at the Administrative Agent s
  Account, in same day funds, such Lender s ratable portion of
  such Borrowing.  After the Administrative Agent s receipt of
  such funds and upon fulfillment of the applicable conditions set
  forth in Article III, the Administrative Agent will make such
  funds available by crediting the Borrower s Account; provided,
  however, that in the case of any Revolving Credit Borrowing, the
  Administrative Agent
















  <PAGE>38



  shall first make a portion of such funds equal to the aggregate
  principal amount of any Letter of Credit Advances made by the
  Issuing Bank, and by any other Revolving Credit Lender and
  outstanding on the date of such Revolving Credit Borrowing, plus
  interest accrued and unpaid thereon to and as of such date, 
  available to the Issuing Bank and such other Revolving Credit
  Lenders for repayment of such Letter of Credit Advances.

            (b)  Each Notice of Borrowing shall be irrevocable and
  binding on the Borrower.  The Borrower shall indemnify each
  Appropriate Lender against any loss, cost or expense incurred by
  such Lender as a result of any failure to fulfill on or before
  the date specified in such Notice of Borrowing for such
  Borrowing the applicable conditions set forth in Article III,
  including, without limitation, any loss, cost or expense
  incurred by reason of the liquidation or reemployment of
  deposits or other funds acquired by such Lender to fund the
  Advance to be made by such Lender as part of such Borrowing when
  such Advance, as a result of such failure, is not made on such
  date.

            (c)  Unless the Administrative Agent shall have
  received notice from an Appropriate Lender prior to the date of 
  any Borrowing under a Facility under which such Lender has a
  Commitment that such Lender will not make available to the
  Administrative Agent such Lender s ratable portion of such
  Borrowing, the Administrative Agent may assume, or at its option
  request confirmation from such Lender, that such Lender has made
  such portion available to the Administrative Agent on the date
  of such Borrowing in accordance with subsection (a) of this
  Section 2.02 and the Administrative Agent may, in reliance upon
  such assumption or confirmation (as the case may be), make
  available to the Borrower on such date a corresponding amount. 
  If and to the extent that such Lender shall not have so made
  such ratable portion available to the Administrative Agent, such
  Lender and the Borrower severally agree to repay to the
  Administrative Agent forthwith on demand such corresponding
  amount together with interest thereon, for each day from the
  date such amount is made available to the Borrower until the
  date such amount is repaid to the Administrative Agent, at (i)
  in the case of the Borrower, the interest rate applicable at
  such time under Section 2.06 to Advances comprising such
  Borrowing and (ii) in the case of such Lender, the cost
  (expressed as a rate per annum) to the Administrative Agent of
  funding such Lender s ratable portion; provided that, upon the
  request of such Lender, the Administrative Agent shall provide
  such Lender with a certificate as to the calculation of such
  amount.  If such Lender shall repay to the Administrative Agent
  such corresponding amount, such amount so repaid shall
  constitute such Lender s Advance as part of such Borrowing for
  purposes of this Agreement. 















  <PAGE>39



            (d)  The failure of any Lender to make the Advance to
  be made by it as part of any Borrowing shall not relieve any
  other Lender of its obligation, if any, hereunder to make its
  Advance on the date of such Borrowing, but no Lender shall be
  responsible for the failure of any other Lender to make the 
  Advance to be made by such other Lender on the date of any
  Borrowing.

            (e)  The Borrower may not request a Borrowing
  comprised of Eurodollar Rate Advances or, pursuant to Section
  2.15, convert Base Rate Advances into Eurodollar Rate Advances
  or select a new Interest Period for existing Eurodollar Rate
  Advances if, after the making or Conversion of such Advances or
  the selection of such Interest Period, the number of outstanding
  Borrowings comprised of Eurodollar Rate Advances and having
  different Interest Periods (whether of different duration or
  commencing on different dates) would exceed ten.

            SECTION 2.03.  Repayment.  (a)  Term A Advances.  The
  Borrower shall repay to the Administrative Agent for the ratable
  account of the Term A Lenders the outstanding principal amount
  of the Term A Advances on the following dates in the amounts
  indicated:
            Date                         Amount

            September 30, 1994     $ 3.750 million
            December 31, 1994        3.750 million
            March 31, 1995           7.500 million
            June 30, 1995            7.500 million
            September 30, 1995       7.500 million
            December 31, 1995        7.500 million
            March 31, 1996           9.375 million
            June 30, 1996            9.375 million
            September 30, 1996       9.375 million
            December 31, 1996        9.375 million
            March 31, 1997          11.250 million
            June 30, 1997           11.250 million
            September 30, 1997      11.250 million
            December 31, 1997       11.250 million
            March 31, 1998          13.125 million
            June 30, 1998           13.125 million
            September 30, 1998      13.125 million
            December 31, 1998       13.125 million
            March 31, 1999          15.000 million
            June 30, 1999           15.000 million
            September 30, 1999      15.000 million
            December 31, 1999       15.000 million
            March 31, 2000          16.875 million
            June 30, 2000           16.875 million 
















  <PAGE>40



            September 30, 2000      16.875 million
            December 31, 2000       16.875 million

            (b)  Term B Advances.  The Borrower shall repay to the
  Administrative Agent for the ratable account of the Term B 
  Lenders the outstanding principal amount of the Term B Advance
  on the following dates in the amounts indicated:


            Date                         Amount

            September 30, 1994      $1.250 million
            December 31, 1994        1.250 million
            March 31, 1995           2.500 million
            June 30, 1995            2.500 million
            September 30, 1995       2.500 million
            December 31, 1995        2.500 million
            March 31, 1996           3.125 million
            June 30, 1996            3.125 million
            September 30, 1996       3.125 million
            December 31, 1996        3.125 million
            March 31, 1997           3.750 million
            June 30, 1997            3.750 million 
            September 30, 1997       3.750 million
            December 31, 1997        3.750 million
            March 31, 1998           4.375 million
            June 30, 1998            4.375 million
            September 30, 1998       4.375 million
            December 31, 1998        4.375 million
            March 31, 1999           5.000 million
            June 30, 1999            5.000 million
            September 30, 1999       5.000 million
            December 31, 1999        5.000 million
            March 31, 2000           5.625 million
            June 30, 2000            5.625 million
            September 30, 2000       5.625 million
            December 31, 2000        5.625 million

            (c)  Revolving Credit Advances.  The Borrower shall
  repay to the Administrative Agent for the ratable account of the
  Revolving Credit Lenders the aggregate principal amount of the
  Revolving Credit Advances on the earlier of June 30, 1999 and
  the Termination Date.

            (d)  Letter of Credit Advances.  The Borrower shall
  repay to the Administrative Agent for the account of the Issuing
  Bank and each other Revolving Credit Lender which has made a
  Letter of Credit Advance the outstanding principal amount of
  each Letter of Credit Advance made by each of them on demand. 

















  <PAGE>41



            SECTION 2.04.  Reduction of the Commitments.  (a) 
  Optional.  The Borrower shall have the right, upon at least
  three Business Days  prior notice to the Administrative Agent,
  to (i) terminate in whole or reduce ratably in part the unused
  portions of the Term and Letter of Credit Commitments and the 
  Unused Revolving Credit Commitment and (ii) in connection with
  the repayment of all outstanding Advances under this Agreement
  and the permanent reduction of the Commitments hereunder,
  terminate in whole the used portion of the Letter of Credit
  Commitments if the aggregate amount on deposit in the L/C Cash
  Collateral Account is equal to the aggregate Available Amount of
  all then outstanding Letters of Credit; provided that each
  partial reduction of a Facility (i) shall be in an aggregate
  amount of $10,000,000 or an integral multiple of $1,000,000 in
  excess thereof and (ii) shall be made ratably among the
  Appropriate Lenders in accordance with their Commitments with
  respect to such Facility.

            (b)  Mandatory.  (i)  The Revolving Credit Facility
  shall be permanently reduced on the following dates to the
  amounts indicated:

            Date                     Amount
            December 31, 1997  $ 300 million
            June 30, 1998        250 million
            December 31, 1998    200 million
            June 30, 1999          0 million

            (ii) The Revolving Credit Facility shall, to the
  extent that no Term A or Term B Advance is outstanding, be
  permanently reduced upon the date of receipt of the Net Cash
  Proceeds from (A) the sale, lease, transfer or other disposition
  of any assets of the Borrower or any of its Subsidiaries (other
  than sales, leases, transfers or other dispositions permitted by
  Section 5.02(d) (other than Section 5.02(d)(vii)) and (B) the
  sale and issuance by the Borrower or any of its Subsidiaries of
  any Debt (other than the New Debt Securities and other Debt
  permitted to be sold and issued pursuant to Section 5.02(j)) by
  the amount by which such Net Cash Proceeds exceed the aggregate
  principal amount of Term A Advances and Term B Advances 
  outstanding on the date of such receipt.

            (iii) The Revolving Credit Facility shall be
  permanently reduced upon the date of receipt of the Net Cash
  Proceeds in excess of $200,000,000 from the sale and issuance by
  the Borrower of New Debt Securities by an amount equal to the
  product of (x) such Net Cash Proceeds and (y) a fraction the
  numerator of which is the aggregate Revolving Credit Commitments
  on the date of such receipt and the denominator of which is the

















  <PAGE>42



  sum of the aggregate Revolving Credit Commitments plus the
  aggregate Term A Advances then outstanding plus the aggregate
  Term B Advances then outstanding.

            SECTION 2.05.  Prepayments.  (a)  Optional.  The 
  Borrower may, upon at least one Business Day s notice to the
  Administrative Agent, in the case of Base Rate Advances, and
  three Business Days  notice to the Administrative Agent, in the
  case of Eurodollar Rate Advances, stating the proposed date and
  aggregate principal amount of the prepayment, and if such notice
  is given, the Borrower shall, prepay the outstanding principal
  amounts of the Advances comprising part of the same Borrowing in
  whole or ratably in part, together with accrued interest to the
  date of such prepayment on the principal amount so prepaid;
  provided, however, that (x) each partial prepayment shall be in
  an aggregate principal amount not less than $10,000,000 or an
  integral multiple of $1,000,000 in excess thereof (or, if the
  aggregate principal amount of all Advances that constitute part
  of such Borrowing is less, such aggregate principal amount) and
  (y) in the event any such prepayment of Eurodollar Rate Advances
  is not made on the last day of an Interest Period, the Borrower
  shall be obligated to reimburse the Lenders in respect thereof
  pursuant to Section 8.04(b).  Each such prepayment of any Term A 
  Advances or Term B Advances shall be applied to the installment
  thereof in inverse order of maturity.

            (b)  Mandatory.  (i)  The Borrower shall (A) on the
  date of receipt by the Borrower or any of its Subsidiaries of
  the Net Cash Proceeds from the sale, lease, transfer or other
  disposition of any assets of the Borrower or any of its
  Subsidiaries (other than sales, leases, transfers or other
  dispositions permitted by Section 5.02(d) (other than Section
  5.02(d)(vii))) and (B) on the date of receipt of the first
  $200,000,000 of Net Cash Proceeds from the sale and issuance by
  the Borrower of the New Debt Securities, prepay an aggregate
  principal amount of the Advances comprising part of the same
  Borrowings equal to the amount of such Net Cash Proceeds.  Each
  such prepayment shall be applied first, to the Term B Facility
  and to the installments thereof ratably and second, to the Term
  A Facility and to the installments thereof ratably.
            (ii) The Borrower shall, on the date of receipt of the
  Net Cash Proceeds in excess of $200,000,000 from the sale and
  issuance by the Borrower of the New Debt Securities, prepay an
  aggregate principal amount of the Advances comprising part of
  the same Borrowings in an amount equal to the product of (x)
  such Net Cash Proceeds and (y) a fraction the numerator of which
  is the sum of the aggregate Term A Advances then outstanding
  plus the aggregate Term B Advances then outstanding on the date
  of such receipt and the denominator of which is the sum of the
  aggregate
















  <PAGE>43



  Revolving Credit Commitments plus the aggregate Term A Advances
  then outstanding plus the aggregate Term B Advances then
  outstanding.  Each such prepayment shall be applied first, to
  the Term B Facility and to the installments thereof ratably and
  second, to the Term A Facility and the installments thereof
  ratably.

            (iii) The Borrower shall, on the date of receipt of
  the Net Cash Proceeds from the sale and issuance by the Borrower
  or any of its Subsidiaries of any Debt (other than the New Debt
  Securities and other Debt permitted to be sold and issued
  pursuant to Section 5.02(j)), prepay an aggregate principal
  amount of the Advances comprising part of the same Borrowings
  equal to the amount of such Net Cash Proceeds.  Each such
  prepayment shall be applied first, to the Term B Facility and
  the installments thereof in inverse order of maturity and
  second, to the Term A Facility and the installments thereof in
  inverse order of maturity.

            (iv) The Borrower shall, on each Business Day, pay to
  the Administrative Agent for deposit in the L/C Cash Collateral
  Account an amount sufficient to cause the aggregate amount on
  deposit in such Account to equal the amount by which the 
  aggregate Available Amount of all Letters of Credit then
  outstanding exceeds the Letter of Credit Facility on such
  Business Day.

            (v)  The Borrower shall, on each Business Day, prepay
  an aggregate principal amount of the Revolving Credit Advances
  comprising part of the same Borrowings equal to the amount by
  which (A) the aggregate principal amount of the Revolving Credit
  Advances plus the aggregate Available Amount of all Letters of
  Credit then outstanding exceeds (B) the Revolving Credit
  Facility on such Business Day.

            (vi) All prepayments under this subsection (b) shall
  be made together with accrued interest to the date of such
  prepayment on the principal amount prepaid.

            SECTION 2.06.  Interest.  (a)  Ordinary Interest.  The
  Borrower shall pay interest on the unpaid principal amount of 
  each Advance owing to each Lender from the date of such Advance
  until such principal amount shall be paid in full, at the
  following rates per annum:

            (i)  Base Rate Advances.  During such periods as such
       Advance is a Base Rate Advance, a rate per annum equal at
       all times to the sum of the Base Rate in effect from time
       to time plus the Applicable Margin in effect from time to
       time, payable in arrears quarterly on the last Business Day
       of
















  <PAGE>44



       each March, June, September and December during such
       periods and on the date such Base Rate Advance shall be
       Converted or paid in full.

            (ii) Eurodollar Rate Advances.  During such periods as 
       such Advance is a Eurodollar Rate Advance, a rate per annum
       equal at all times during each Interest Period for such
       Advance to the sum of the Eurodollar Rate for such Interest
       Period plus the Applicable Margin in effect from time to
       time, payable in arrears on the last day of such Interest
       Period and, if such Interest Period has a duration of more
       than three months, on each day that occurs during such
       Interest Period every three months from the first day of
       such Interest Period.

            (b)  Default Interest.  The Borrower shall pay on
  demand interest on the unpaid principal amount of each Advance
  that is not paid when due and on the unpaid amount of all
  interest, fees and other amounts then due and payable hereunder
  that is not paid when due from the due date thereof to the date
  paid, at a rate per annum equal at such time to (i) in the case
  of any amount of principal, 2% per annum above the rate of
  interest per annum required to be paid on such Advance 
  immediately prior to the date on which such amount became due
  and payable and (ii) in the case of all other amounts, 2% per
  annum above the rate per annum required to be paid on Base Rate
  Advances pursuant to clause (a)(i) above.

            SECTION 2.07.  Interest Rate Determination.  (a)  The
  Administrative Agent shall give prompt notice to the Borrower
  and each Lender of the applicable interest rate determined by
  the Administrative Agent for purposes of Section 2.06(a), and
  the applicable rate, if any, furnished by Citibank for the
  purpose of determining the applicable interest rate under
  Section 2.06(a).

            (b)  If Citibank cannot furnish timely information to
  the Administrative Agent for determining the Eurodollar Rate,
  the Administrative Agent shall forthwith notify the Borrower and
  each Lender that the interest rate cannot be determined for such
  Eurodollar Rate Advances, whereupon (i) each such Eurodollar 
  Rate Advance will automatically, on the last day of the then
  existing Interest Period therefor, Convert into a Base Rate
  Advance and (ii) the obligation of the Lenders to make, or to
  Convert Advances into, Eurodollar Rate Advances shall be
  suspended until the Administrative Agent shall notify the
  Borrower that Citibank has determined that the circumstances
  causing such suspension no longer exist.

            (c)  If the Required Lenders notify the Administrative
  Agent that the Eurodollar Rate for any Interest Period for such
















  <PAGE>45



  Eurodollar Rate Advances will not adequately reflect the cost to
  such Lenders of making, funding or maintaining their pro rata
  shares of such Eurodollar Rate Advances for such Interest
  Period, the Administrative Agent shall forthwith so notify the
  Borrower and the Lenders, whereupon (i) each such Eurodollar 
  Rate Advance will automatically, on the last day of the then
  existing Interest Period therefor, Convert into a Base Rate
  Advance and (ii) the obligation of the Lenders to make, or to
  Convert Advances into, Eurodollar Rate Advances shall be
  suspended until the Administrative Agent shall notify the
  Borrower that such Lenders have determined that the
  circumstances causing such suspension no longer exist.

            (d)  If the Borrower shall fail to select the duration
  of any Interest Period for any Eurodollar Rate Advances in
  accordance with the provisions contained in the definition of
  "Interest Period" in Section 1.01, the Administrative Agent will
  forthwith so notify the Borrower and the Lenders and the
  Interest Period for such Eurodollar Rate Advances will be one
  month.

            SECTION 2.08.  Fees.  (a)  Commitment Fee.  The
  Borrower agrees to pay to the Administrative Agent for the 
  account of the Lenders a commitment fee on the average daily
  unused portion of each Appropriate Lender s Term A Commitment,
  on the average daily unused portion of each Appropriate Lender's
  Term B Commitment and on the average daily Unused Revolving
  Credit Commitment of such Lender from the date hereof, in the
  case of each Bank, and from the effective date specified in the
  Assignment and Acceptance pursuant to which it became a Lender,
  in the case of each other Lender, until the Termination Date at
  a rate equal to (i) 1/2 of 1% per annum during any period in
  which the Performance Level of the Borrower is at Level III or
  Level IV or (ii) 3/8 of 1% per annum during any other period, in
  each case payable in arrears on the date of the initial
  Borrowing, thereafter quarterly on the last Business Day of each
  March, June, September and December commencing June 30, 1994,
  and the Termination Date.  

            (b)  Other Fees.  The Borrower shall pay to the
  Administrative Agent for its own account such fees as are set 
  forth in the fee letter dated May 3, 1994 between the Borrower
  and Citibank, as the same may be amended or otherwise modified
  from time to time.

            SECTION 2.09.  Increased Costs.  (a)  Except as to
  taxes, levies, imposts, deductions, charges, withholdings or
  liabilities with respect thereto (it being understood that the
  Borrower shall not have any liability for any taxes, levies,
  imposts, deductions, charges, withholdings or liabilities with
  respect thereto, except as provided in Section 2.12), if, due to
















  <PAGE>46



  either (i) the introduction of or any change (other than any
  change by way of imposition or increase of reserve requirements
  included in the Eurodollar Rate Reserve Percentage) in or in the
  interpretation of any law or regulation or (ii) the compliance
  by any Lender with any guideline or request from any central 
  bank or other governmental authority in any case introduced,
  changed, interpreted or requested after the date hereof (whether
  or not having the force of law), there shall be (x) imposed,
  modified or deemed applicable any reserve, special deposit or
  similar requirement against assets held by, or letters of credit
  or guarantees issued by, or deposits in or for the account of,
  any Lender or (y) imposed on any Lender any other condition
  relating to this Agreement or the Advances made by it, and the
  result of any event referred to in clause (x) or (y) shall be to
  increase the cost to such Lender of agreeing to make or making,
  funding or maintaining Eurodollar Rate Advances, then the
  Borrower shall from time to time, upon demand by such Lender
  (with a copy of such demand to the Administrative Agent) made
  within 60 days after the first date on which such Lender has
  actual knowledge that it is entitled to make demand for payment
  under this Section 2.09(a), pay to the Administrative Agent for
  the account of such Lender additional amounts sufficient to
  compensate such Lender for such increased cost; provided, 
  however, that if such Lender fails to so notify the Borrower
  within such 60-day period, such increased cost shall commence
  accruing on such later date on which the Lender notifies the
  Borrower; provided further that, before making any such demand,
  such Lender agrees to use its best efforts (consistent with its
  internal policy and legal and regulatory restrictions) to
  designate a different Applicable Lending Office if the making of
  such a designation would avoid the need for, or reduce the
  amount of, such increased cost and would not, in the reasonable
  judgment of such Lender, be otherwise disadvantageous to such
  Lender.  A certificate as to the amount of such increased cost,
  submitted to the Borrower and the Administrative Agent by such
  Lender, shall be conclusive and binding for all purposes, absent
  manifest error.

            (b)  If any Lender determines that compliance with any
  law or regulation or any guideline or request from any central
  bank or other governmental or monetary authority in regard to 
  capital adequacy (whether or not having the force of law)
  including, without limitation, any guideline contemplated by the
  report dated July 1988 entitled "International Convergence of
  Capital Management and Capital Standards" issued by the Bank
  Committee on Banking Regulations and Supervisory Practices, in
  any case in which such law, regulation, guideline or request
  became effective or was made after the date hereof, has or would
  have the effect of reducing the rate of return on the capital
  of, or maintained by, such Lender or any corporation controlling
  such Lender as a consequence of such Lender s Advances or
  Commitments















  <PAGE>47



  hereunder and other commitments of this type, by increasing the
  amount of capital required or expected to be maintained by such
  Lender or any corporation controlling such Lender, to a level
  below that which such Lender or any corporation controlling such
  Lender could have achieved but for such adoption, effectiveness, 
  change or compliance (taking into account such Lender s or such
  corporation s policies with respect to capital adequacy), then
  the Borrower shall, from time to time, pay such Lender, upon
  demand by such Lender (with a copy of such demand to the
  Administrative Agent) made within 60 days after the first date
  on which such Lender has actual knowledge that it is entitled to
  make demand for payment under this Section 2.09(b) of such
  reduction in return, such additional amount as may be specified
  by such Lender as being sufficient to compensate such Lender for
  such reduction in return, to the extent that such Lender
  reasonably determines such reduction to be attributable to the
  existence of such Lender s commitment to lend hereunder;
  provided however, that if such Lender fails to so notify the
  Borrower within such 60-day period, such amounts shall commence
  accruing on such later date on which the Lender notifies the
  Borrower.  A certificate as to such amounts submitted to the
  Borrower and the Administrative Agent by such Lender shall be
  conclusive and biding for all purposes, absent manifest error.
            SECTION 2.10.  Illegality.  Notwithstanding any other
  provision of this Agreement, if the introduction of or any
  change in or in the interpretation of any law or regulation
  makes it unlawful, or any central bank or other governmental
  authority asserts that it is unlawful, for any Lender or its
  Eurodollar Lending Office to perform its obligations hereunder
  to make Eurodollar Rate Advances or to fund or maintain
  Eurodollar Rate Advances hereunder, then, upon written notice by
  such Lender to the Borrower (with a copy to the Administrative
  Agent), (i) each Eurodollar Rate Advance of such Lender will
  automatically Convert into a Base Rate Advance and (ii) the
  obligation of such Lender to make, or to Convert Base Rate
  Advances into, Eurodollar Rate Advances shall be suspended until
  the Administrative Agent shall notify the Borrower and the
  Lenders that the circumstances causing such suspension no longer
  exist; provided, however, that, before making any such demand,
  such Lender shall designate a different Eurodollar Lending 
  Office if the making of such a designation would avoid the need
  for giving such notice and demand and would not, in the judgment
  of such Lender, be otherwise disadvantageous to such Lender.

            For purposes of this Section 2.10, a notice to the
  Borrower by a Lender shall be effective with respect to any
  Advance on the last day of the then current Interest Period for
  such Advance; provided, however, that, if it is not lawful for
  such Lender to maintain such Advance until the end of the

















  <PAGE>48



  Interest Period applicable thereto, then the notice to the
  Borrower shall be effective upon receipt by the Borrower.

            SECTION 2.11.  Payments and Computations.  (a)  The
  Borrower shall make each payment hereunder and under the Notes 
  not later than 11:00 A.M. (New York City time) on the day when
  due in U.S. dollars to the Administrative Agent at the
  Administrative Agent s Account in same day funds.  The
  Administrative Agent will promptly thereafter cause to be
  distributed like funds relating to the payment of principal or
  interest or commitment fees ratably (other than amounts payable
  pursuant to Section 2.09 or 2.12) to the Lenders for the account
  of their respective Applicable Lending Offices, and like funds
  relating to the payment of any other amount payable to any
  Lender to such Lender for the account of its Applicable Lending
  Office, in each case to be applied in accordance with the terms
  of this Agreement.  Upon its acceptance of an Assignment and
  Acceptance and recording of the information contained therein in
  the Register pursuant to Section 8.07(d), from and after the
  effective date specified in such Assignment and Acceptance, the
  Administrative Agent shall make all payments hereunder and under
  the Notes in respect of the interest assigned thereby to the
  Lender assignee thereunder, and the parties to such Assignment 
  and Acceptance shall make all appropriate adjustments in such
  payments for periods prior to such effective date directly
  between themselves.

            (b)  The Borrower hereby authorizes each Lender, if
  and to the extent payment of principal, interest or fees owed to
  such Lender is not made when due hereunder or under the Note or
  Notes held by such Lender, to charge from time to time against
  any or all of the Borrower s accounts with such Lender any
  amount so due.

            (c)  All computations of interest based on the
  Eurodollar Rate or the Federal Funds Rate shall be made by the
  Administrative Agent, on the basis of a year of 360 days, and
  all computations of interest based on the Base Rate and of
  commitment fees shall be made by the Administrative Agent on the
  basis of a year of 365 or 366 days, as the case may be, in each
  case for the actual number of days (including the first day but 
  excluding the last day) occurring in the period for which such
  interest or commitment fees are payable.  Each determination by
  the Administrative Agent of an interest rate hereunder shall be
  conclusive and binding for all purposes, absent manifest error.

            (d)  Whenever any payment hereunder or under any Note
  shall be stated to be due on a day other than a Business Day,
  such payment shall be made on the next succeeding Business Day,
  and such extension of time shall in such case be included in the

















  <PAGE>49



  computation of payment of interest or commitment fee, as the
  case may be; provided, however, if such extension would cause
  payment of interest on or principal of Eurodollar Rate Advances
  to be made in the next following calendar month, such payment
  shall be made on the next preceding Business Day.
            (e)  Unless the Administrative Agent shall have
  received notice from the Borrower prior to the date on which any
  payment is due to the Lenders hereunder or under any Note that
  the Borrower will not make such payment in full, the
  Administrative Agent may assume, or at its option request
  confirmation from the Borrower, that the Borrower has made such
  payment in full to the Administrative Agent on such date and the
  Administrative Agent may, in reliance upon such assumption,
  cause to be distributed to each Lender on such due date an
  amount equal to the amount then due such Lender.  If and to the
  extent the Borrower shall not have so made such payment in full
  to the Administrative Agent, each Lender shall repay to the
  Administrative Agent forthwith on demand such amount distributed
  to such Lender together with interest thereon, for each day from
  the date such amount is distributed to such Lender until the
  date such Lender repays such amount to the Administrative Agent,
  at the Federal Funds Rate.
            (f)  If the Administrative Agent receives funds for
  application to the Obligations under the Loan Documents under
  circumstances for which the Loan Documents do not specify the
  Advances or the Facility to which, or the manner in which, such
  funds are to be applied, the Administrative Agent may, but shall
  not be obligated to, elect to distribute such funds to each
  Lender ratably in accordance with such Lender's proportionate
  share of the principal amount of all outstanding Advances and
  the Available Amount of all Letters of Credit then outstanding,
  in repayment or prepayment of such of the outstanding Advances
  or other Obligations owed to such Lender, and for application to
  such principal installments, as the Administrative Agent shall
  direct.

            SECTION 2.12.  Taxes.  (a)  Any and all payments by
  the Borrower hereunder or under the Notes shall be made, in
  accordance with Section 2.11, free and clear of and without 
  deduction for any and all present or future taxes, levies,
  imposts, deductions, charges  or withholdings, and all
  liabilities with respect thereto, excluding, in the case of each
  Lender and the Administrative Agent, (i) taxes imposed on its
  income, and franchise taxes and backup withholding taxes imposed
  on it, by the United States or the jurisdiction under the laws
  of which such Lender or the Administrative Agent (as the case
  may be) is organized or any political subdivision or taxing
  authority thereof or therein, (ii) taxes imposed on its income,
  and
















  <PAGE>50



  franchise taxes imposed on it, by the jurisdiction of such
  Lender s or the Administrative Agent s principal office or
  Applicable Lending Office or any political subdivision or taxing
  authority thereof or therein and (iii) United States withholding
  tax payable with respect to payments hereunder under laws 
  (including, without limitation any statute, treaty, ruling,
  determination or regulation) in effect on the Initial Date with
  respect to such Lender or the Administrative Agent, but not
  excluding any United States withholding tax payable as a result
  of any change in such laws occurring after the Initial Date (all
  such non-excluded taxes, levies, imposts, deductions, charges,
  withholdings and liabilities being hereinafter referred to as
  "Taxes").  If the Borrower shall be required by law to deduct
  any Taxes from or in respect of any sum payable hereunder or
  under any Note to any Lender or the Administrative Agent, (i)
  the sum payable shall be increased as may be necessary so that
  after making all required deductions of Taxes (including
  deductions of Taxes applicable to additional sums payable under
  this Section 2.12) such Lender or the Administrative Agent (as
  the case may be) receives an amount equal to the sum it would
  have received had no such deductions of Taxes been made, (ii)
  the Borrower shall make such deductions and (iii) the Borrower
  shall pay the full amount deducted to the relevant taxation 
  authority or other authority in accordance with applicable law;
  provided, however, that any such Lender shall designate a
  different Eurodollar Lending Office if, in the judgment of such
  Lender, such designation would avoid the need for, or reduce the
  amount of, any Taxes required to be deducted from or in respect
  of any sum payable hereunder to such Lender or the
  Administrative Agent and would not, in the judgment of such
  Lender, be otherwise disadvantageous to such Lender.

            (b)  In addition, the Borrower agrees to pay any
  present or future stamp or documentary taxes or any other excise
  or property taxes, charges or similar levies that arise from any
  payment made hereunder or under the Notes or from the execution,
  delivery or registration of, or otherwise with respect to, this
  Agreement or the Notes (hereinafter referred to as "Other
  Taxes").

            (c)  The Borrower will indemnify each Lender and the 
  Administrative Agent for the full amount of Taxes or Other Taxes
  (including, without limitation, any Taxes or Other Taxes imposed
  by any jurisdiction on amounts payable under this Section 2.12)
  paid by such Lender or the Administrative Agent (as the case may
  be) and any liability (including penalties, additions to tax,
  interest and expenses) arising therefrom or with respect
  thereto; provided that, in the event such Lender or the
  Administrative Agent, as the case may be, successfully contests
  the assessment of such Taxes or Other Taxes or any liability
  arising therefrom
















  <PAGE>51



  or with respect thereto, such Lender or the Administrative Agent
  shall refund, to the extent of any refund thereof made to such
  Lender or the Administrative Agent, any amounts paid by the
  Borrower under this Section 2.12(c) in respect of such Taxes,
  Other Taxes or liabilities arising therefrom or with respect 
  thereto.  Each Lender and the Administrative Agent agree that it
  will contest such Taxes, Other Taxes or liabilities if (i) the
  Borrower furnishes to it an opinion of reputable tax counsel
  acceptable to such Lender or the Administrative Agent to the
  effect that such Taxes or Other Taxes were wrongfully or
  illegally imposed and (ii) such Lender or the Administrative
  Agent determines, in its sole discretion, that it would not be
  disadvantaged or prejudiced in any manner whatsoever as a result
  of such contest.  This indemnification shall be made within 30
  days from the date such Lender or the Administrative Agent (as
  the case may be) makes written demand therefor.

            (d)  Within 30 days after the date of any payment of 
  Taxes, the Borrower will furnish to the Administrative Agent, at
  its address referred to in Section 8.02, appropriate evidence of
  payment thereof.  If no Taxes are payable in respect of any
  payment hereunder or under the Notes by the Borrower from an
  account or branch outside the United States or on behalf of the 
  Borrower by a payor that is not a United States person, the
  Borrower will furnish to the Administrative Agent, at such
  address, a certificate from each appropriate taxing authority,
  or an opinion of counsel acceptable to the Administrative Agent,
  in either case stating that such payment is exempt from or not
  subject to Taxes.  For purposes of this Section 2.12, the terms
   United States" and "United States person" shall have the
  meanings specified in Section 7701 of the Code.

            (e)  Each Lender organized under the laws of a
  jurisdiction outside the United States and the Administrative
  Agent, if organized under the laws of a jurisdiction outside the
  United States, shall, on or prior to the Initial Date and from
  time to time thereafter if requested in writing by the Borrower
  or the Administrative Agent (but only so long thereafter as such
  Lender or the Administrative Agent remains lawfully able to do
  so), provide the Borrower and (in the case of any such Lender
  other than the Administrative Agent) the Administrative Agent 
  with two duly completed copies of Internal Revenue Service form
  1001 or 4224, as appropriate, or any successor form prescribed
  by the Internal Revenue Service, certifying that such Lender or
  the Administrative Agent is entitled to benefits under an income
  tax treaty to which the United States is a party that reduces
  the rate of withholding tax on payments under this Agreement or
  the Notes or certifying that the income receivable pursuant to
  this Agreement or the Notes is effectively connected with the
  conduct of a trade or business in the United States.

















  <PAGE>52



            (f)  For any period with respect to which the
  Administrative Agent or a Lender has failed to provide the
  Borrower with the appropriate forms described in subsection (e)
  above (other than if such failure is due to a change in law
  occurring after the date on which such person was originally 
  required to provide such forms, or if such forms are otherwise
  not required under subsection (e) above), the Administrative
  Agent or such Lender shall not be entitled to increased payments
  or indemnification under subsection (a) or (c) above with
  respect to Taxes imposed by the United States; provided,
  however, that should the Administrative Agent or a Lender become
  subject to Taxes because of its failure to deliver a form
  required hereunder, the Borrower shall take such steps as the
  Administrative Agent or such Lender shall reasonably request to
  assist the Lender to recover such Taxes if, in the judgment of
  the Borrower such steps would avoid the need for, or reduce the
  amount of, any Taxes required to be deducted from or in respect
  of any sum payable hereunder to the Administrative Agent or such
  Lender and would not, in the judgment of the Borrower, be
  disadvantageous to the Borrower.

            (g)  Without prejudice to the survival of any other
  agreement of the Borrower hereunder, the agreements and 
  obligations of the Borrower contained in this Section 2.12 shall
  survive the payment in full of principal and interest hereunder
  and under the Notes.

            (h)  If a Lender shall change its Applicable Lending
  Office other than (i) at the request of the Borrower or (ii) at
  a time when such change would not result in this Section 2.12
  requiring the Borrower to make a greater payment than if such
  change had not been made, such Lender shall not be entitled to
  receive any greater payment under this Section 2.12 than such
  Lender would have been entitled to receive had it not changed
  its Applicable Lending Office.

            SECTION 2.13.  Sharing of Payments, Etc.  If any
  Lender shall obtain any payment (whether voluntary, involuntary,
  through the exercise of any right of set-off, or otherwise) on
  account of the Advances owing to it (other than pursuant to
  Section 2.09 or 2.12) in excess of its ratable share of payments 
  on account of the Advances obtained by all the Lenders, such
  Lender shall forthwith purchase from the other Lenders such
  participations in the Advances owing to them as shall be
  necessary to cause such purchasing Lender to share the excess
  payment ratably with each of them; provided, however, that, if
  all or any portion of such excess payment is thereafter
  recovered from such purchasing Lender, such purchase from each
  Lender shall be rescinded and such Lender shall repay to the
  purchasing Lender the purchase price to the extent of such
  recovery together with an amount









 





  <PAGE>53



  equal to such Lender's ratable share (according to the
  proportion of (i) the amount of such Lender's required repayment
  to (ii) the total amount so recovered from the purchasing
  Lender) of any interest or other amount paid or payable by the
  purchasing Lender in respect of the total amount so recovered. 
  The Borrower agrees that any Lender so purchasing a
  participation from another Lender pursuant to this Section 2.13
  may, to the fullest extent permitted by law, exercise all its
  rights of payment (including the right of set-off) with respect
  to such participation as fully as if such Lender were the direct
  creditor of the Borrower in the amount of such participation.

            SECTION 2.14.  Removal of Bank.  In the event that any
  Lender demands payment of costs or additional amounts pursuant
  to Section 2.09 or Section 2.12 or asserts pursuant to Section
  2.10 that it is unlawful for such Lender to make Eurodollar Rate
  Advances, then (subject to such Lender's right to rescind such
  demand or assertion within 10 days after the notice from the
  Borrower referred to below) the Borrower may, upon 20 days'
  prior written notice to such Lender and the Administrative
  Agent, elect to cause such Lender to assign its Advances and
  Commitments in full to an assignee institution selected by the
  Borrower that meets the criteria of an Eligible Assignee and is 
  reasonably satisfactory to the Administrative Agent, so long as
  such Lender receives payment in full of the outstanding
  principal amount of all Advances made by it and all accrued and
  unpaid interest thereon and all other amounts due and payable to
  such Lender as of the date of such assignment (including without
  limitation amounts owing pursuant to Section 2.09 or 2.12), and
  in such case such Lender agrees to make such assignment, and
  such assignee shall agree to accept such assignment and assume
  all obligations of such Lender hereunder, in accordance with
  Section 8.07.

            SECTION 2.15.  Conversion of Advances.  (a)  Optional. 
  The Borrower may on any Business Day, upon notice given to the
  Administrative Agent not later than noon (New York City time) on
  the third Business Day prior to the date of the proposed
  Conversion and subject to the provisions of Sections 2.07 and
  2.09, Convert all or any portion of the Advances of one Type
  comprising the same Borrowing into Advances of the other Type; 
  provided, however, that any Conversion of Eurodollar Rate
  Advances into Base Rate Advances shall be made on, and only on,
  the last day of an Interest Period for such Eurodollar Rate
  Advances, and any Conversion of Base Rate Advances into
  Eurodollar Rate Advances shall be subject to the limitation set
  forth in Section 2.02(e) and in an amount not less than
  $10,000,000.  Each such notice of Conversion shall, within the
  restrictions specified above, specify (i) the date of such
  Conversion, (ii) the Advances to be Converted and (iii) if such
  Conversion is into Eurodollar Rate Advances, the duration of the









 





  <PAGE>54



  initial Interest Period for such Advances.  Each notice of
  Conversion shall be irrevocable and binding on the Borrower.

            (b)  Mandatory.  (i)  On the date on which the
  aggregate unpaid principal amount of Eurodollar Rate Advances 
  comprising any Borrowing shall be reduced, by payment or
  prepayment or otherwise, to less than $10,000,000, such Advances
  shall automatically Convert into Base Rate Advances. 

            (ii) Upon the occurrence and during the continuance of
  any Event of Default (or, in the case of any involuntary
  proceeding described in Section 6.01(e), a Default), (A) each
  Eurodollar Rate Advance will automatically, on the last day of
  the then existing Interest Period therefor, Convert into a Base
  Rate Advance and (B) the obligation of the Lenders to make, or
  to Convert Advances into, Eurodollar Rate Advances shall be
  suspended.

            SECTION 2.16.  Letters of Credit.  (a)  The Letter of
  Credit Facility.  The Issuing Bank agrees, on the terms and
  conditions hereinafter set forth, to issue letters of credit
  (the "Letters of Credit") for the account of the Borrower from
  time to time on any Business Day during the period from the date 
  of the initial Borrowing until 60 days before June 30, 1999
  (i) in an aggregate Available Amount for all Letters of Credit
  not to exceed at any time the Issuing Bank's Letter of Credit
  Commitment and (ii) in an Available Amount for each such Letter
  of Credit not to exceed the Unused Revolving Credit Commitments
  of the Revolving Credit Lenders on such Business Day.  No Letter
  of Credit shall have an expiration date (including all rights of
  the Borrower or the beneficiary to require renewal) later than
  the earlier of 30 days before the Termination Date and, in the
  case of a Standby Letter of Credit, one year after the date of
  issuance thereof, but may by its terms be renewable annually
  with the consent of the Issuing Bank, and, in the case of a
  Trade Letter of Credit, 60 days after the date of issuance
  thereof.  Within the limits of the Letter of Credit Facility,
  and subject to the limits referred to above, the Borrower may
  request the issuance of Letters of Credit under this
  Section 2.16(a), repay any Letter of Credit Advances resulting
  from drawings thereunder pursuant to Section 2.16(c) and request 
  the issuance of additional Letters of Credit under this
  Section 2.16(a).

            (b)  Request for Issuance.  (i) Each Letter of Credit
  shall be issued upon notice, given not later than 11:00 A.M.
  (New York City time) on the tenth Business Day prior to the date
  of the proposed issuance of such Letter of Credit, by the
  Borrower to the Issuing Bank, which shall give to the
  Administrative Agent and each Revolving Credit Lender prompt
  notice thereof by telex, telecopier or cable.  Each such notice









 





  <PAGE>55



  of issuance of a Letter of Credit (a "Notice of Issuance") shall
  be by telex, telecopier or cable, confirmed immediately in
  writing, specifying therein the requested (A) date of such
  issuance (which shall be a Business Day), (B) Available Amount
  of such Letter of Credit, (C) expiration date of such Letter of 
  Credit, (D) name and address of the beneficiary of such Letter
  of Credit and (E) form of such Letter of Credit, and shall be
  accompanied by such application and agreement for letter of
  credit (a "Letter of Credit Agreement") as the Issuing Bank may
  specify to the Borrower for use in connection with such
  requested Letter of Credit.  If  the requested form of such
  Letter of Credit is acceptable to the Issuing Bank and the
  Administrative Agent in their sole discretion, the Issuing Bank
  will, upon fulfillment of the applicable conditions set forth in
  Article III, make such Letter of Credit available to the
  Borrower at its office referred to in Section 8.02 or as
  otherwise agreed with the Borrower in connection with such
  issuance.  In the event and to the extent that the provisions of
  any Letter of Credit Agreement shall conflict with this
  Agreement, the provisions of this Agreement shall govern.

            (ii) The Issuing Bank shall furnish (A) to the
  Administrative Agent on the first Business Day of each week a 
  written report summarizing issuance and expiration dates of
  Letters of Credit issued during the previous week and drawings
  during such week under all Letters of Credit, (B) to each
  Revolving Credit Lender on the first Business Day of each month
  a written report summarizing issuance and expiration dates of
  Letters of Credit issued during the preceding month and drawings
  during such month under all Letters of Credit and (C) to the
  Administrative Agent and each Revolving Credit Lender on the
  first Business Day of each calendar quarter a written report
  setting forth the average daily aggregate Available Amount
  during the preceding calendar quarter of all Letters of Credit.

            (c)  Drawing and Reimbursement.  The payment by the
  Issuing Bank of a draft drawn under any Letter of Credit shall
  constitute for all purposes of this Agreement the making by the
  Issuing Bank of a Letter of Credit Advance, which shall be a
  Base Rate Advance, in the amount of such draft.  Upon written
  demand by the Issuing Bank, with a copy of such demand to the 
  Administrative Agent and the Borrower, each other Revolving
  Credit Lender shall purchase from the Issuing Bank, and the
  Issuing Bank shall sell and assign to each such other Revolving
  Credit Lender, such other Lender's Pro Rata Share of such
  outstanding Letter of Credit Advance as of the date of such
  purchase, by making available for the account of its Applicable
  Lending Office to the Administrative Agent for the account of
  the Issuing Bank, by deposit to the Administrative Agent's
  Account, in same day funds, an amount equal to the portion of
  the









 





  <PAGE>56



  outstanding principal amount of such Letter of Credit Advance to
  be purchased by such Lender.  The Borrower hereby agrees to each
  such sale and assignment.  Each Revolving Credit Lender agrees
  to purchase its Pro Rata Share of an outstanding Letter of
  Credit Advance on (i) the Business Day on which demand therefor 
  is made by the Issuing Bank, provided notice of such demand is
  given not later than 11:00 A.M. (New York City time) on such
  Business Day or (ii) the first Business Day next succeeding such
  demand if notice of such demand is given after such time.  Upon
  any such assignment by the Issuing Bank to any other Revolving
  Credit Lender of a portion of a Letter of Credit Advance, the
  Issuing Bank represents and warrants to such other Lender that
  the Issuing Bank is the legal and beneficial owner of such
  interest being assigned by it free and clear of adverse claims,
  but makes no other representation or warranty and assumes no
  responsibility with respect to such Letter of Credit Advance,
  the Loan Documents or any Loan Party.  If and to the extent that
  any Revolving Credit Lender shall not have so made the amount of
  such Revolving Credit Advance available to the Administrative
  Agent, such Revolving Credit Lender agrees to pay to the
  Administrative Agent forthwith on demand such amount together
  with interest thereon, for each day from the date of demand by
  the Issuing Bank until the date such amount is paid to the 
  Administrative Agent, at the Federal Funds Rate.  If such Lender
  shall pay to the Administrative Agent such amount for the
  account of the Issuing Bank on any Business Day, such amount so
  paid in respect of principal shall constitute a Letter of Credit
  Advance made by such Lender on such Business Day for purposes of
  this Agreement, and the outstanding principal amount of the
  Letter of Credit Advance made by the Issuing Bank shall be
  reduced by such amount on such Business Day.

            (d)  Obligations Absolute.  The Obligations of the
  Borrower under this Agreement, any Letter of Credit Agreement
  and any other agreement or instrument relating to any Letter of
  Credit shall be unconditional and irrevocable, and shall be paid
  strictly in accordance with the terms of this Agreement, such
  Letter of Credit Agreement and such other agreement or
  instrument under all circumstances, including, without
  limitation, the following circumstances:
            (i)  any lack of validity or enforceability of this
       Agreement, any of the other Loan Documents, any Letter of
       Credit Agreement, any Letter of Credit or any other
       agreement or instrument relating thereto (this Agreement
       and all of the other foregoing being, collectively, the
       "L/C Related Documents");

            (ii) any change in the time, manner or place of
       payment of, or in any other term of, all or any of the
       Obligations









 





  <PAGE>57



       of the Borrower in respect of any L/C Related Document or
       any other amendment or waiver of or any consent to
       departure from all or any of the L/C Related Documents;

            (iii) the existence of any claim, set-off, defense or 
       other right that the Borrower may have at any time against
       any beneficiary or any transferee of a Letter of Credit (or
       any Persons for whom any such beneficiary or any such
       transferee may be acting), the Issuing Bank or any other
       Person, whether in connection with the transactions
       contemplated by the L/C Related Documents or any unrelated
       transaction;

            (iv) any statement or any other document presented
       under a Letter of Credit proving to be forged, fraudulent,
       invalid or insufficient in any respect or any statement
       therein being untrue or inaccurate in any respect;

            (v)  payment by the Issuing Bank under a Letter of
       Credit against presentation of a draft or certificate that
       does not strictly comply with the terms of such Letter of
       Credit except for any payment made upon the Issuing Bank's
       gross negligence or willful misconduct;
            (vi) any exchange, release or non-perfection of any
       Collateral or other collateral, or any release or amendment
       or waiver of or consent to departure from the Guaranty or
       any other guarantee, for all or any of the Obligations of
       the Borrower in respect of the L/C Related Documents; or

            (vii) any other circumstance or happening whatsoever,
       whether or not similar to any of the foregoing, including,
       without limitation, any other circumstance that might
       otherwise constitute a defense available to, or a discharge
       of, the Borrower or a guarantor.

            (e)  Compensation.  (i) The Borrower shall pay to the
  Administrative Agent for the account of each Revolving Credit
  Lender a commission on such Lender's Pro Rata Share of the
  average daily aggregate Available Amount of all Letters of
  Credit outstanding from time to time at a rate per annum equal 
  to the Applicable Margin for Eurodollar Rate Advances in effect
  from time to time payable in arrears quarterly on the last
  Business Day of each March, June, September and December,
  commencing June 30, 1994, and on the Termination Date.

            (ii) The Borrower shall pay to the Issuing Bank, for
  its own account, a fronting and issuance fee on the average
  daily aggregate Available Amount of all Letters of Credit
  outstanding from time to time at the rate of 1/8 of 1% per
  annum, payable in
















  <PAGE>58



  arrears quarterly on the last Business Day of each March, June,
  September and December, commencing June 30, 1994, and on the
  Termination Date.

            SECTION 2.17.  Defaulting Lenders.  (a)  In the event 
  that, at any one time, (i) any Lender shall be a Defaulting
  Lender, (ii) such Defaulting Lender shall owe a Defaulted
  Advance to the Borrower and (iii) the Borrower shall be required
  to make any payment hereunder or under any other Loan Document
  to or for the account of such Defaulting Lender, then the
  Borrower may, so long as no Default shall occur or be continuing
  at such time and to the fullest extent permitted by applicable
  law, set off and otherwise apply the Obligation of the Borrower
  to make such payment to or for the account of such Defaulting
  Lender against the Obligation of such Defaulting Lender to make
  such Defaulted Advance.  In the event that the Borrower shall so
  set off and otherwise apply the Obligation of the Borrower to
  make any such payment against the Obligation of such Defaulting
  Lender to make any such Defaulted Advance on any date, the
  amount so set off and otherwise applied by the Borrower shall
  constitute for all purposes of this Agreement and the other Loan
  Documents an Advance by such Defaulting Lender made on such date
  under the Facility pursuant to which such Defaulted Advance was 
  originally required to have been made pursuant to Section 2.01. 
  Such Advance shall be a Base Rate Advance and shall be
  considered, for all purposes of this Agreement, to comprise part
  of the Borrowing in connection with which such Defaulted Advance
  was originally required to have been made pursuant to Section
  2.01, even if the other Advances comprising such Borrowing shall
  be Eurodollar Advances on the date such Advance is deemed to be
  made pursuant to this subsection (a).  The Borrower shall notify
  the Administrative Agent at any time the Borrower reduces the
  amount of the Obligation of the Borrower to make any payment
  otherwise required to be made by it hereunder or under any other
  Loan Document as a result of the exercise by the Borrower of its
  right set forth in this subsection (a) and shall set forth in
  such notice (A) the name of the Defaulting Lender and the
  Defaulted Advance required to be made by such Defaulting Lender
  and (B) the amount set off and otherwise applied in respect of
  such Defaulted Advance pursuant to this subsection (a).  Any
  portion of such payment otherwise required to be made by the 
  Borrower to or for the account of such Defaulting Lender which
  is paid by the Borrower, after giving effect to the amount set
  off and otherwise applied by the Borrower pursuant to this
  subsection (a), shall be applied by the Agent as specified in
  subsection (b) or (c) of this Section 2.17.

            (b)  In the event that, at any one time, (i) any
  Lender shall be a Defaulting Lender, (ii) such Defaulting Lender
  shall owe a Defaulted Amount to the Administrative Agent or any
  of the









 





  <PAGE>59



  other Lenders and (iii) the Borrower shall make any payment
  hereunder or under any other Loan Document to the Administrative
  Agent for the account of such Defaulting Lender, then the
  Administrative Agent may, on its behalf or on behalf of such
  other Lenders and to the fullest extent permitted by applicable 
  law, apply at such time the amount so paid by the Borrower to or
  for the account of such Defaulting Lender to the payment of each
  such Defaulted Amount to the extent required to pay such
  Defaulted Amount.  In the event that the Administrative Agent
  shall so apply any such amount to the payment of any such
  Defaulted Amount on any date, the amount so applied by the
  Administrative Agent shall constitute for all purposes of this
  Agreement and the other Loan  Documents payment, to such extent,
  of such Defaulted Amount on such date.  Any such amount so
  applied by the Administrative Agent shall be retained by the
  Administrative Agent or distributed by the Administrative Agent
  to such other Lenders, ratably in accordance with the respective
  portions of such Defaulted Amounts payable at such time to the
  Administrative Agent and such other Lenders and, if the amount
  of such payment made by the Borrower shall at such time be
  insufficient to pay all Defaulted Amounts owing at such time to
  the Administrative Agent and the other Lenders, in the following
  order of priority:
            (i)  first, to the Administrative Agent for any
       Defaulted Amount then owing to the Administrative Agent;
       and

            (ii) second, to any other Lenders for any Defaulted
       Amounts then owing to such other Lenders, ratably in
       accordance with such respective Defaulted Amounts then
       owing to such other Lenders.

  Any portion of such amount paid by the Borrower for the account
  of such Defaulting Lender remaining, after giving effect to the
  amount applied by the Administrative Agent pursuant to this
  subsection (b), shall be applied by the Administrative Agent as
  specified in subsection (c) of this Section  2.17.

            (c)  In the event that, at any one time, (i) any
  Lender shall be Defaulting Lender, (ii) such Defaulting Lender 
  shall not owe a Defaulted Advance or a Defaulted Amount and
  (iii) the Borrower, the Administrative Agent or any other Lender
  shall be required to pay or distribute any amount hereunder or
  under any other Loan Document to or for the account of such
  Defaulting Lender, then the Borrower or such other Lender shall
  pay such amount to the Administrative Agent to be held by the
  Administrative Agent, to the fullest extent permitted by
  applicable law, in escrow or the Administrative Agent shall, to
  the fullest extent permitted by applicable law, hold in escrow
  such amount otherwise held by it.  Any funds held by the
















  <PAGE>60



  Administrative Agent in escrow under this subsection (c) shall
  be deposited by the Administrative Agent in an account with
  Citibank, in the name and under the control of the
  Administrative Agent, but subject to the provisions of this
  subsection (c).  The terms applicable to such account, including 
  the rate of interest payable with respect to the credit balance
  of such account from time to time, shall be Citibank's standard
  terms applicable to escrow accounts maintained with it.  Any
  interest credited to such account from time to time shall be
  held by the Administrative Agent in escrow under, and applied by
  the Administrative Agent from time to time in accordance with
  the provisions of, this subsection (c).   The Administrative
  Agent shall, to the fullest extent permitted by applicable law,
  apply all funds so held in escrow from time to time to the
  extent necessary to make any Advances required to be made by
  such Defaulting Lender and to pay any amount payable by such
  Defaulting Lender hereunder and under the other Loan Documents
  to the Administrative Agent or any other Lender, as and when
  such Advances or amounts are required to be made or paid and, if
  the amount so held in escrow shall at any time be insufficient
  to make and pay all such Advances and amounts required to be
  made or paid at such time, in the following order of priority:
            (i)  first, to the Administrative Agent for any amount
       then due and payable by such Defaulting Lender to the
       Administrative Agent hereunder;

            (ii) second, to any other Lenders for any amount then
       due and payable by such Defaulting Lender to such other
       Lenders hereunder, ratably in accordance with such
       respective amounts then due and payable to such other
       Lenders; and

            (iii) third, to the Borrower for any Advance then
       required to be made by such Defaulting Lender pursuant to a
       Commitment of such Defaulting Lender.

  In the event that such Defaulting Lender shall, at any time,
  cease to be a Defaulting Lender, any funds held by the
  Administrative Agent in escrow at such time with respect to such
  Defaulting Lender shall be distributed by the Administrative 
  Agent to such Defaulting Lender and applied by such Defaulting
  Lender to the Obligations owing to such Lender at such time
  under this Agreement and the other Loan Documents ratably in
  accordance with the respective amounts of such Obligations
  outstanding at such time.

            (d)  The rights and remedies against a Defaulting
  Lender under this Section 2.17 are in addition to other rights
  and remedies which the Borrower may have against such Defaulting

















  <PAGE>61



  Lender with respect to any Defaulted Advance and which the
  Administrative Agent or any Lender may have against such
  Defaulting Lender with respect to any Defaulted Amount.

                             ARTICLE III

                        CONDITIONS OF LENDING

            SECTION 3.01.  Conditions Precedent to Initial
  Borrowing.  The obligation of each Lender to make an Advance on
  the occasion of the initial Borrowing is subject to the
  following conditions precedent:

            (a)  The Company's Board of Directors shall have
       approved the Tender Offer and the Merger and recommended
       that its shareholders tender their Company Stock pursuant
       to the Tender Offer, and such recommendation shall not have
       been withdrawn or qualified in a manner adverse to NHL or
       the Purchaser.

            (b)  The Merger Agreement shall be in full force and
       effect and shall not have been terminated, all Company 
       Stock owned by Affiliates of the Purchaser shall have been
       contributed to the Purchaser, and all Company Stock held by
       the Purchaser shall be free and clear of all Liens.

            (c)  The Lenders shall be satisfied with the corporate
       and legal structure and capitalization of each Loan Party
       and each of its Subsidiaries, including the terms and
       conditions of the charter, bylaws and each class of capital
       stock of each Loan Party and each such Subsidiary and of
       each agreement or instrument relating to such structure or
       capitalization.

            (d)  The Lenders shall be satisfied (i) that all
       Existing Debt, other than the Debt identified on part I of
       Schedule II (the "Surviving Debt"), has been prepaid,
       redeemed or defeased in full or otherwise satisfied and
       extinguished, (ii) that all Debt under the 1994 Credit
       Agreement and the 1993 Credit Agreement has been prepaid 
       and that the commitments under such 1994 Credit Agreement
       and the 1993 Credit Agreement have been terminated and
       (iii) with the terms of the Escrow Agreement pursuant to
       which up to $26,402,136 of the Term A Advances shall have
       been set aside for the repayment of the Surviving Debt
       listed in part II of Schedule II; the Surviving Debt
       Agreements shall be in form and substance reasonably
       satisfactory to the Lenders.


















  <PAGE>62



            (e)  Before giving effect to the Tender Offer and the
       other transactions contemplated by this Agreement, there
       shall have occurred no Material Adverse Change since
       December 31, 1993 relating to (i) NHL or (ii) the Company.
            (f)  There shall exist no action, suit, investigation,
       litigation or proceeding affecting any Loan Party, the
       Company or any of their Subsidiaries pending or threatened
       before any court, governmental agency or arbitrator that
       (i) would be reasonably likely to have a Material Adverse
       Effect (in the case of clause (a) of the definition of
       Material Adverse Effect, the term "Person" shall mean  NHL
       or the Company) or (ii) purports to affect the legality,
       validity or enforceability of the Tender Offer or the
       Merger, this Agreement, any Note, any other Loan Document,
       any Related Document or the consummation of the
       transactions contemplated hereby and thereby, and there
       shall have been no material adverse change in the status,
       or financial effect on NHL or the Company, of (A) the
       investigations with the Office of the Inspector General
       regarding billing practices at NHL or the Company or (B)
       the shareholders' suits brought against NHL from that
       described in the information provided to the Lenders prior 
       to their commitment to the Facilities.

            (g)  The Lenders have been given such access to the
       management, records, books of account, contracts and
       properties of NHL, the Company and its Subsidiaries as they
       shall have requested.

            (h)  The Borrower shall have paid all accrued fees and
       expenses of the Administrative Agent and the Lenders
       (including the reasonable fees and expenses of special and
       local counsel to the Administrative Agent).

            (i)  The Administrative Agent shall have received on
       or before the date of the initial Borrowing the following,
       each dated as of the date of the initial Borrowing (unless
       otherwise specified), in form and substance satisfactory to
       the Administrative Agent (unless otherwise specified) and
       (except for the Notes) in sufficient copies for each Lender:

                 (i)  the Notes to the order of the Lenders;

                 (ii) certified copies of the resolutions of the
            board of directors of the Borrower, the Purchaser,
            each other Loan Party (other than the Company and its
            Subsidiaries) and Public Holdings approving the Tender
            Offer, the Merger, this Agreement, the Notes, each
            other Loan Document and each Related Document to which 















  <PAGE>63



            it is or is to be a party, and of all documents
            evidencing other necessary corporate action and
            governmental approvals, if any, with respect to the
            Tender Offer, the Merger, this Agreement, the Notes,
            each other Loan Document and each Related Document;
                 (iii) a certificate of the Secretary or an
            Assistant Secretary of the Borrower, each other Loan
            Party (other than the Company and its Subsidiaries)
            and Public Holdings certifying the names and true
            signatures of the officers of the Borrower, the
            Company, such other Loan Party and Public Holdings
            authorized to sign this Agreement, the Notes, each
            other Loan Document and each Related Document to which
            they are or are to be parties and the other documents
            to be delivered hereunder and thereunder;

                 (iv) a copy of the Charter of the Borrower, the
            Company, each other Loan Party and Public Holdings and
            each amendment thereto, certified (as of a date
            reasonably near the date of the initial Borrowing) by
            the Secretary of State of the State of Delaware as
            being a true and correct copy thereof;
                 (v)  a copy of a certificate of the Secretary of
            State of the State of Delaware, dated reasonably near
            the date of the initial Borrowing, listing the Charter
            of the Borrower, the Company, each other Loan Party
            and Public Holdings and each amendment thereto on file
            in his office and certifying that (A) such amendments
            are the only amendments to the Borrower's, the
            Company's, such other Loan Party's or Public Holdings'
            Charter on file in his office, (B) the Borrower, the
            Company, each other Loan Party and Public Holdings
            have paid all franchise taxes to the date of such
            certificate and (C) the Borrower, the Company, each
            other Loan Party and Public Holdings are duly
            incorporated and in good standing under the laws of
            the State of Delaware;

                 (vi) a certificate of the Borrower, each other 
            Loan Party (other than the Company and its
            Subsidiaries) and Public Holdings signed on behalf of
            the Borrower, such other Loan Party and Public
            Holdings by its President or a Vice President and its
            Secretary or any Assistant Secretary, dated as of the
            date of the initial Borrowing (the statements made in
            such certificate shall be true on and as of the date
            of the initial Borrowing), certifying as to (A) the
            absence of any amendments to the Charter of the
            Borrower, such other Loan Party or Public Holdings
            since the date of 














  <PAGE>64



            the Secretary of State's certificate referred to in
            subclause (v) above, (B) a true and correct copy of
            the bylaws of the Borrower, such other Loan Party and
            Public Holdings as in effect on the date of the
            initial Borrowing, (C) the due incorporation and good 
            standing of the Borrower, such other Loan Party and
            Public Holdings, as a corporation organized under the
            laws of the State of Delaware, and the absence of any
            proceeding for the dissolution or liquidation of the
            Borrower, such other Loan Party or Public Holdings,
            (D) the truth in all material respects of the
            representations and warranties contained in this
            Agreement as though made on and as of the date of the
            initial Borrowing and (E) the absence of any event
            occurring and continuing, or resulting from the
            initial Borrowing, that constitutes a Default;

                 (vii) a certificate of NHL to the effect that no
            information provided by NHL to the Administrative
            Agent or any Lender contained or contains any material
            misstatement of fact or omitted or omits to state any
            material fact necessary to make the statements
            therein, in the light of the circumstances under which 
            they were made, not misleading except that, as to the
            financial model included therein, such certificate
            shall be limited to a statement that such model was
            prepared in good faith by NHL's management based on
            assumptions believed to be reasonable when made and
            may be further qualified by a statement to the effect
            that because assumptions as to future results are
            inherently subject to uncertainty and contingencies
            beyond NHL's control, actual results of NHL may be
            higher or lower;

                 (viii) A security agreement in substantially the
            form of Exhibit E (as amended from time to time in
            accordance with its terms, the "Security Agreement"),
            duly executed by the Borrower and each of its
            Subsidiaries (other than the Company and its
            Subsidiaries) organized under the laws of a state of
            the United States of America, together with:
                      (A)  certificates representing the Pledged
                 Shares referred to therein accompanied by undated
                 stock powers executed in blank and instruments
                 evidencing the Pledged Debt referred to therein
                 indorsed in blank,

                      (B)  acknowledgment copies or stamped
                 receipt copies of proper financing statements,
                 duly filed on or before the day of the initial
                 Borrowing















  <PAGE>65



                 under the Uniform Commercial Code of all
                 jurisdictions that the Administrative Agent may
                 deem necessary or desirable in order to perfect
                 and protect the Liens created by the Security
                 Agreement, covering the Collateral described in 
                 the Security Agreement,

                      (C)  completed requests for information,
                 dated on or before the date of the initial
                 Borrowing, listing the financing statements
                 referred to in clause (B) above and all other
                 effective financing statements filed in the
                 jurisdictions referred to in clause (B) above
                 that name the Borrower or the Company or any of
                 their respective Subsidiaries as debtor, together
                 with copies of such other financing statements,

                      (D)  evidence of the completion of all other
                 recordings and filings of or with respect to the
                 Security Agreement that the Administrative Agent
                 may deem necessary or desirable in order to
                 perfect and protect the Liens created thereby,
                      (E)  evidence of the insurance required by
                 the terms of the Security Agreement,

                      (F)  copies of the Assigned Agreement
                 referred to in the Security Agreement, together
                 with a consent to such assignment, in
                 substantially the form of Exhibit B to the
                 Security Agreement, duly executed by each party
                 to such Assigned Agreement other than the
                 Borrower or any of its Subsidiaries,

                      (G)  the Lockbox Letters referred to in the
                 Security Agreement, duly executed by the Borrower
                 or the applicable Subsidiary, as the case may be,
                 and

                      (H)  evidence that all other action that the
                 Administrative Agent may deem necessary or  
                 desirable in order to perfect and protect the
                 Liens created by the Security Agreement has been
                 taken.

                 (ix) A pledge agreement in substantially the form
            of Exhibit F (as amended from time to time in
            accordance with its terms, the "Pledge Agreement"),
            duly executed by the Guarantor, together with
            certificates representing the Pledged Shares referred 
















  <PAGE>66



            to therein accompanied by undated stock powers
            executed in blank;

                 (x)  A guaranty in substantially the form of
            Exhibit G (as amended from time to time in accordance 
            with its terms, the "Guaranty"), duly executed by the
            Guarantor;

                 (xi) A guaranty in substantially the form of
            Exhibit H (as amended from time to time in accordance
            with its terms, the "Subsidiary Guaranty"), duly
            executed by the Subsidiary Guarantors;

                 (xii) An agreement in substantially the form of
            Exhibit I (as amended from time to time in accordance
            with its terms, the "Public Holdings Agreement"), duly
            executed by Public Holdings;

                 (xiii) Certified copies of each of the Merger
            Agreement, Offer to Purchase and the Tax Agreement
            duly executed by the parties thereto and in form and
            substance satisfactory to the Lenders, together with
            all agreements, instruments and other documents 
            delivered in connection therewith;

                 (xiv) Such financial, business and other
            information regarding each Loan Party, the Company and
            their Subsidiaries as the Lenders shall have
            reasonably requested, including, without limitation,
            information as to possible contingent liabilities, tax
            matters, environmental matters, obligations under
            ERISA and Welfare Plans, collective bargaining
            agreements and other arrangements with employees,
            annual financial statements of both NHL and the
            Company dated December 31, 1993, interim financial
            statements of both NHL and the Company dated the end
            of the most recent fiscal quarter for which financial
            statements are available, pro forma financial
            statements as to the Borrower and forecasts prepared
            by management of NHL, in form and substance
            satisfactory to the Lenders, of balance sheets, income 
            statements and cash flow statements on a quarterly
            basis for the first year following the day of the
            initial Borrowing and on an annual basis for each year
            thereafter until the Termination Date;

                 (xv) Certificates, in substantially the forms of
            Exhibit J-1 and J-2, attesting to the Solvency of NHL
            and the Company after giving effect to the Tender
            Offer, the Merger and the other transactions
            contemplated hereby, executed on behalf of NHL and the









 





  <PAGE>67



            Company by the chief financial officer of NHL and an
            appropriate officer of the Borrower, respectively;

                 (xvi) An environmental assessment report, in form
            and substance satisfactory to the Lenders, from an 
            environmental consulting firm acceptable to the
            Lenders, with respect to the properties specified on
            Schedule III hereto;

                 (xvii) A letter, in form and substance
            satisfactory to the Administrative Agent, from the
            Borrower to KPMG Peat Marwick, its independent
            certified public accountants, advising such
            accountants that the Administrative Agent and the
            Lenders have been authorized to exercise all rights of
            the Borrower to require such accountants to disclose
            any and all financial statements and any other
            information of any kind that they may have with
            respect to the Borrower and its Subsidiaries and
            directing such accountants to comply with any
            reasonable request of the Administrative Agent or any
            Lender for such information;
                 (xvii) A letter, in form and substance
            satisfactory to the Administrative Agent, from KPMG
            Peat Marwick, the Borrower's independent Certified
            Public Accountants, to the Administrative Agent,
            acknowledging that the Lenders have relied and will
            rely upon the financial statements of the  Borrower
            examined by such accountants in determining whether to
            enter into, and to take action or refrain from taking
            action under, the Loan Documents.

                 (xix) Evidence of insurance naming the
            Administrative Agent as insured and loss payee with
            such responsible and reputable insurance companies or
            associations, and in such amounts and covering such
            risks, as is satisfactory to the Lenders;

                 (xx) Certified copies of all Material Contracts
            of the Company and its Subsidiaries;

                 (xxi) An escrow agreement in substantially the
            form of Exhibit K (as amended from time to time in
            accordance with its terms, the "Escrow Agreement"),
            duly executed by the Borrower, the Administrative
            Agent and Citibank, N.A. as escrow agent;

                 (xxii) A voting trust agreement, duly executed by
            Public Holdings, the Guarantor and      , as voting

















  <PAGE>68



            trustee, in form and substance satisfactory to the
            Administrative Agent, and a voting trust agreement,
            duly executed by the Guarantor, the Borrower and  , as
            voting trustee, in form and substance satisfactory to
            the Administrative Agent;
                 (xxiii) a favorable opinion of James G. Richmond
            Esq., Executive Vice President and General Counsel of
            the Borrower, of Paul, Weiss, Rifkind, Wharton &
            Garrison, special New York counsel for the Borrower,
            and of Cravath, Swaine & Moore, special New York
            counsel for NHL substantially in the forms of
            Exhibits L-1,  L-2 and L-3 hereto, respectively, and
            as to such other matters as any Lender through the
            Administrative Agent may reasonably request; and

                 (xxiv) a favorable opinion of Shearman &
            Sterling, counsel for the Administrative Agent, in
            form and substance satisfactory to the Administrative
            Agent.

            SECTION 3.02.  Conditions Precedent to Each Borrowing. 
  The obligation of each Appropriate Lender to make an Advance 
  (other than a Letter of Credit Advance) on the occasion of each
  Borrowing (including the initial Borrowing) resulting in an
  increase in the aggregate amount of outstanding Advances, and
  the right of the Borrower to request the issuance of Letters of
  Credit, shall be subject to the further conditions precedent
  that on the date of such Borrowing or issuance (a) the following
  statements shall be true (and each of the giving of the
  applicable Notice of Borrowing or Notice of Issuance and the
  acceptance by the Borrower of the proceeds of such Borrowing or
  of such Letter of Credit shall constitute a representation and
  warranty by the Borrower that on the date of such Borrowing or
  issuance such statements are true):

            (i)  The representations and warranties contained in
       Section 4.01 are correct in all material respects on and as
       of the date of such Borrowing or issuance, before and after
       giving effect to such Borrowing or issuance and to the
       application of the proceeds therefrom, as though made on 
       and as of such date; and

            (ii) No event has occurred and is continuing, or would
       result from such Borrowing or issuance or from the
       application of the proceeds therefrom, which constitutes a
       Default,

  and (b) the Administrative Agent shall have received such other
  certificates, opinions and other documents as any Lender through
  the Administrative Agent may reasonably request in order to
















  <PAGE>69



  confirm (i) the accuracy of the Borrower's representations and
  warranties, (ii) the Borrower's timely compliance with the
  terms, covenants and agreements set forth in this Agreement,
  (iii) the absence of any Default and (iv) the absence of any
  event of the type referred to in Section 2.10.
            SECTION 3.03.  Determinations Under Section 3.01.  For
  purposes of determining compliance with the conditions specified
  in Section 3.01, each Lender shall be deemed to have consented
  to, approved or accepted or to be satisfied with each document
  or other matter required thereunder to be consented to or
  approved by or acceptable or satisfactory to the Lenders unless
  an officer of the Administrative Agent responsible for the
  transactions contemplated by this Agreement shall have received
  notice from such Lender prior to the initial Borrowing
  specifying its objection thereto and such Lender shall not have
  made available to the Administrative Agent such Lender's ratable
  portion of such Borrowing.


                             ARTICLE IV

                   REPRESENTATIONS AND WARRANTIES
            SECTION 4.01.  Representations and Warranties of the
  Borrower.  The Borrower represents and warrants as follows:

            (a)  Each Loan Party (i) is a corporation duly
       organized, validly existing and in good standing under the
       laws of the jurisdiction of its incorporation, (ii) is duly
       qualified and in good standing as a foreign corporation in
       each other jurisdiction in which it owns or leases property
       or in which the conduct of its business requires it to so
       qualify or be licensed except where the failure to so
       qualify or be licensed would not have a Material Adverse
       Effect (in the case of clause (a) of the definition of
       Material Adverse Effect, the term "Person" shall mean the
       Borrower) and (iii) has all requisite corporate power and
       authority to own or lease and operate its properties and to
       carry on its business as now conducted and as proposed to
       be conducted.  All of the outstanding capital stock of the
       Borrower has been validly issued, is fully paid and non-
       assessable and is owned by the Guarantor free and clear of
       all Liens except for the Liens created by the Collateral
       Documents.

            (b)  Set forth on Schedule IV hereto is a complete and
       accurate list of all Subsidiaries of each Loan Party,
       showing as of the date hereof (as to each such Subsidiary)
       the jurisdiction of its incorporation, the number of shares 









 





  <PAGE>70



       of each class of capital stock authorized, and the number
       outstanding, on the date hereof and the percentage of the
       outstanding shares of each such class owned (directly or
       indirectly) by such Loan Party and the number of shares
       covered by all outstanding options, warrants, rights of 
       conversion or purchase and similar rights at the date
       hereof.  All of the outstanding capital stock of all of
       such Subsidiaries has been validly issued, is fully paid
       and non-assessable and is owned by such Loan Party or one
       or more of its Subsidiaries free and clear of all Liens,
       except those created by the Collateral Documents.  Each
       such Subsidiary (i) is a corporation duly organized,
       validly existing and in good standing under the laws of the
       jurisdiction of its incorporation, (ii) is duly qualified
       and in good standing as a foreign corporation in each other
       jurisdiction in which it owns or leases property or in
       which the conduct of its business requires it to so qualify
       or be licensed except where the failure to so qualify or be
       licensed would not have a Material Adverse Effect (in the
       case of clause (a) of the definition of Material Adverse
       Effect, the term "Person" shall mean the Borrower) and
       (iii) has all requisite corporate power and authority to
       own or lease and operate its properties and to carry on its 
       business as now conducted and as proposed to be conducted.

            (c)  The execution, delivery and performance by each
       Loan Party of this Agreement, the Notes, each Loan Document
       and each Related Document to which it is or is to be a
       party, and the consummation of the Tender Offer and the
       Merger and the other transactions contemplated hereby, are
       within such Loan Party's corporate powers, have been duly
       authorized by all necessary corporate action, and do not
       (i) contravene such Loan Party's charter or by-laws,
       (ii) violate any law (including, without limitation, the
       Exchange Act), rule, regulation (including, without
       limitation, Regulation X of the Board of Governors of the
       Federal Reserve System), order, writ, judgment, injunction,
       decree, determination or award, (iii) conflict with or
       result in the breach of, or constitute a default under, any
       loan agreement, contract, indenture, mortgage, deed of
       trust, lease or other instrument binding on or affecting 
       any Loan Party, any of its Subsidiaries or any of its or
       their properties, the effect of which conflict, breach or
       default is reasonably likely to have a Material Adverse
       Effect (in the case of clause (a) of the definition of
       Material Adverse Effect, the term "Person" shall mean the
       Borrower) or (iv) except for the liens created by the
       Collateral Documents, result in or require the creation or
       imposition of any Lien upon or with respect to any of the
       properties of the Borrower or any of its Subsidiaries. 
       None of the
















  <PAGE>71



       Borrower and its Subsidiaries is in violation of any such
       law, rule, regulation, order, writ, judgment, injunction,
       decree, determination or award or in breach of any such
       contract, loan agreement, indenture, mortgage, deed of
       trust, lease or other instrument, the violation or breach 
       of which would be reasonably likely to have a Material
       Adverse Effect (in the case of clause (a) of the definition
       of Material Adverse Effect, the term "Person" shall mean
       the Borrower).

            (d)  No authorization or approval or other action by,
       and no notice to or filing with, any governmental authority
       or regulatory body is required for (i) the due execution,
       delivery and performance by any Loan Party of this
       Agreement or the Notes or any other Loan Document or any
       Related Document to which it is or is to be a party or for
       the consummation of the Tender Offer or the Merger or the
       other transactions contemplated hereby, (ii) the grant by
       any Loan Party of the Liens granted by it pursuant to the
       Collateral Documents, (iii) the perfection or maintenance
       of the Liens created by the Collateral Documents (including
       the first priority nature thereof) or (iv) the exercise by
       the Administrative Agent or any Lender of its rights under 
       the Loan Documents or the remedies in respect of the
       Collateral pursuant to the Collateral Documents, except for
       the authorizations, approvals, actions, notices and filings
       listed on Schedule V, all of which (other than as described
       in such Schedule) have been duly obtained, taken, given or
       made and are in full force and effect.  All applicable
       waiting periods in connection with the Merger and the other
       transactions contemplated hereby have expired without any
       action having been taken by any competent authority
       restraining, preventing or imposing materially adverse
       conditions upon the Merger or the rights of the Loan
       Parties or their Subsidiaries freely to transfer or
       otherwise dispose of, or to create any Lien on, any
       properties now owned or hereafter acquired by any of them.

            (e)  This Agreement has been, and each of the Notes,
       each other Loan Document and each Related Document when
       delivered hereunder will have been, duly executed and 
       delivered by each Loan Party party thereto.  This Agreement
       is, and each of the Notes, each other Loan Document and
       each Related Document when delivered hereunder will be, the
       legal, valid and binding obligations of each Loan Party
       party thereto, enforceable against such Loan Party in
       accordance with its terms, subject to applicable
       bankruptcy, insolvency, reorganization, moratorium or
       similar laws affecting the enforceability of creditor's
       rights generally.

















  <PAGE>72



            (f)  Each of (i) the audited Consolidated balance
       sheet of NHL as at December 31, 1993 and the related
       audited Consolidated statements of earnings, cash flows and
       stockholders' equity of NHL for the fiscal year then ended
       and (ii) the unaudited Consolidated balance sheets of NHL 
       as of March 31, 1994 and the related unaudited Consolidated
       statement of earnings, cash flows and stockholders' equity
       of NHL for the fiscal quarter then ended, copies of all of
       which have been furnished to each Lender, fairly present
       the financial condition of NHL and its Subsidiaries as at
       such date and the results of the operations of NHL and its
       Subsidiaries for the period ended on such date, all in
       accordance with GAAP, subject in the case of clause (ii) to
       normal year-end audit adjustments and to the absence of
       footnotes.  Since December 31, 1993, there has been no
       Material Adverse Change relating to NHL.

            (g)  Each of (i) the audited Consolidated balance
       sheet of the Company as at December 31, 1993 and the
       related audited Consolidated statements of earnings, cash
       flows and stockholders' equity of the Company for the
       fiscal year then ended and (ii) the unaudited Consolidated
       balance sheets of the Company as of March 31, 1994 and the 
       related unaudited Consolidated statement of earnings, cash
       flows and stockholders' equity of the Company for the
       fiscal quarter then ended, copies of all of which have been
       furnished to each Lender, fairly present the financial
       condition of the Company and its subsidiaries as at such
       date and the results of the operations of the Company and
       its Subsidiaries for the period ended on such date, all in
       accordance with GAAP, subject in the case of clause (ii) to
       normal year-end audit adjustments and to the absence of
       footnotes.  Since December 31, 1993, there has been no
       Material Adverse Change relating to the Company.

            (h)  The Consolidated pro forma balance sheet of the
       Borrower and its Subsidiaries as at May 31, 1994, and the
       related Consolidated pro forma statement of income and cash
       flows of the Borrower and its Subsidiaries for the five
       months then ended, certified by the chief financial officer
       of the NHL, copies of which have been furnished to each 
       Lender, fairly present the Consolidated pro forma financial
       condition of the Borrower and its Subsidiaries as at such
       date and the Consolidated pro forma results of operations
       of the Borrower and its Subsidiaries for the period ended
       on such date, in each case giving effect to the Tender
       Offer, the Merger and the other transactions contemplated
       hereby, all in accordance with GAAP.



















  <PAGE>73



            (i)  The Consolidated forecasted balance sheets,
       income statements and cash flows statements of the Borrower
       and its Subsidiaries delivered to the Lenders pursuant to
       Section 3.01(i)(xiv) or 5.01(t)(v) were prepared in good
       faith on the basis of the assumptions stated therein, which 
       assumptions were fair in the light of conditions existing
       at the time of delivery of such forecasts, and represented,
       at the time of delivery, the Borrower's best estimate of
       its future financial performance.

            (j)  There is no pending or threatened action,
       proceeding, governmental investigation or arbitration
       affecting any Loan Party, the Company or any of their
       Subsidiaries before any court, governmental agency or
       arbitrator, which is reasonably likely to have a Material
       Adverse Effect (in the case of clause (a) of the definition
       of Material Adverse Effect, the term "Person" shall mean
       the Borrower) or that purports to affect the legality,
       validity or enforceability of the Tender Offer, the Merger,
       this Agreement, any Note, any other Loan Document or any
       Related Document or the consummation of the transactions
       contemplated hereby or thereby.
            (k)  The Borrower is not engaged in the business of
       extending credit for the purpose of purchasing or carrying
       Margin Stock and no proceeds of any Advance will be used to
       purchase or carry any Margin Stock, except in connection
       with the Tender Offer and the Merger, Permitted
       Acquisitions and in connection with the repurchase by
       Public Holdings of capital stock, or to extend credit to
       others for the purpose of purchasing or carrying any Margin
       Stock.

            (l)  The Borrower and its ERISA Affiliates are in
       compliance in all material respects with the applicable
       provisions of ERISA and the Code with respect to each Plan
       thereof.  No ERISA Event has occurred or is reasonably
       expected to occur with respect to any Plan of the Borrower
       or any of its ERISA Affiliates.  The amount of all Unfunded
       Pension Liabilities under all Plans of the Borrower and its
       ERISA Affiliates does not exceed $20,000,000.  None of the 
       Borrower or any of its ERISA Affiliates has made
       contributions or incurred any Withdrawal Liability to any
       Multiemployer Plan within the past five years, and it is
       not reasonably expected that such contributions shall be
       made or required or that such liability shall be incurred
       in any such case in amounts or under circumstances that
       would be reasonably likely to result in a material
       liability to the Borrower or any of its ERISA Affiliates. 
       Schedule B (Actuarial Information) to the 1992 annual
       report (Form 5500 Series) for each Plan of the Borrower and
       each of its ERISA















  <PAGE>74



       Affiliates, copies of which have been filed with the
       Internal Revenue Service and furnished to the Lenders, is
       complete and accurate in all material respects and fairly
       presents the funding status of such Plan, and since the
       date of such Schedule B there has been no material adverse 
       change in such funding status.  The Borrower and its
       Subsidiaries have no material liability with respect to
       "expected postretirement benefit obligations" within the
       meaning of Statement of Financial Accounting Standards
       No. 106.

            (m)  Neither the Borrower nor any of its Subsidiaries
       currently maintains or contributes to any Welfare Plan
       which provides post-retirement medical or life insurance
       benefits other than pursuant to Section 4980B of the Code
       or Section 601 through 608 of ERISA.

            (n)  The operations and properties of the Guarantor
       and each of its Subsidiaries comply with all Environmental
       Laws, all necessary Environmental Permits have been
       obtained and are in effect for the operations and
       properties of the Borrower and its Subsidiaries and the
       Borrower and its Subsidiaries are in compliance with all
       such Environmental Permits, except, as to all of the above,
       where the failure to do so would not be reasonably likely
       to have a Material Adverse Effect (in the case of clause

       (a) of the definition thereof, the term "Person" shall mean
       the Borrower); and no circumstances exist that are
       reasonably likely to (i) form the basis of an Environmental
       Action against the Guarantor or any of its Subsidiaries or
       any of their respective properties or (ii) cause any such
       property to be subject to any restrictions on ownership,
       occupancy, use or transferability under any Environmental
       Law that would, in the case of either (i) or (ii) above, be
       reasonably likely to have a Material Adverse Effect (in the
       case of clause (a) of the definition thereof, the term
       "Person" shall mean the Borrower).


            (o)  The Guarantor and each of its Subsidiaries has
       filed, has caused to be filed or has been included in all
       tax returns (Federal, state, local and foreign) required to
       be filed and has paid all taxes shown thereon to be due, 
       together with applicable interest and penalties.

            (p)  The Company has filed Federal tax returns or the
       taxable years 1989, 1990, 1991 and 1992, and the Company
       has















  <PAGE>75



       filed an application to extend the time to file the 1993
       Federal tax return.  The Company has not executed a consent
       with the Internal Revenue Service to extend the time to
       assess any taxes beyond the otherwise applicable statute of
       limitation.
            (q)  The aggregate unpaid amount, as of the date
       hereof, of adjustments to the Federal income tax liability
       of the Company proposed by the Internal Revenue service
       under notices of proposed adjustment or assessment received
       by the Company does not exceed $900,000.  No issues have
       been raised by the Internal Revenue Service that, in the
       aggregate, would be reasonably likely to have a Material
       Adverse Effect (in the case of clause (a) of the definition
       thereof, the term "Person" shall mean the Borrower).

            (r)  The aggregate unpaid amount, as of the date
       hereof, of adjustments to the state, local and foreign tax
       liability of the Company and its Subsidiaries proposed by
       all state, local and foreign taxing authorities under
       notices of proposed adjustment or assessment received by
       the Company (other than amounts arising from adjustments to
       Federal income tax returns) does not exceed $200,000.  No 
       issues have been raised by such taxing authorities that, in
       the aggregate, would be reasonably likely to have a
       Material Adverse Effect (in the case of clause (a) of the
       definition thereof, the term "Person" shall mean the
       Borrower).

            (s)  The Merger will constitute a reorganization under
       Section 368 of the Internal Revenue Code of 1986, as
       amended.  The Merger will not be taxable to the Company,
       any of its Subsidiaries, any Loan Party or any of its
       subsidiaries.

            (t)  The Company and its Subsidiaries do not have, as
       of the date hereof, net operating loss carryforwards for
       U.S. Federal income tax purposes.

            (u)  Neither any Loan Party nor any of its
       Subsidiaries is an "investment company," or an "affiliated 
       person" of, or "promoter" or "principal underwriter" for,
       an "investment company," as such terms are defined in the
       Investment Company Act of 1940, as amended.  Neither the
       making of any Advances, nor the issuance of any Letters of
       Credit, nor the application of the proceeds or repayment
       thereof by the Borrower, nor the consummation of the other
       transactions contemplated hereby, will violate any
       provision of such Act or any rule, regulation or order of
       the Securities and Exchange Commission thereunder.

















  <PAGE>76



            (v)  The Guarantor, the Borrower, the Company and each
       Subsidiary Guarantor is, individually and together with its
       Subsidiaries, Solvent.

            (w)  Set forth on Schedule VI hereto is a complete and 
       accurate list of all Existing Debt (other than Surviving
       Debt) and all existing Debt of NHL and its Subsidiaries
       prior to the consummation of the Tender Offer, showing as
       of the date hereof the principal amount outstanding
       thereunder.

            (x)  Set forth on Schedule II hereto is a complete and
       accurate list of all Surviving Debt, showing as of the date
       hereof the principal amount outstanding thereunder.

            (y)  Set forth on Schedule VII hereto is a complete
       and accurate list of all real property owned by the
       Guarantor, the Company or any of their Subsidiaries,
       showing as of the date hereof the street address, county or
       other relevant jurisdiction, state, record owner and book
       and estimated fair value thereof.  The Guarantor, the
       Company or such Subsidiary has good, marketable and
       insurable fee simple title to such real property which is 
       to be the subject of a Mortgage pursuant to Section
       5.01(o), free and clear of all Liens, other than Liens
       created or permitted by the Loan Documents.

            (z)  Set forth on Schedule VIII hereto is a complete
       and accurate list of all leases of real property requiring
       monthly payment of at least $10,000 under which the
       Guarantor, the Company or any of their Subsidiaries is the
       lessee, showing as of the date hereof the street address,
       county or other relevant jurisdiction, state, lessor,
       lessee, expiration date and annual rental cost thereof. 
       Each such lease is the legal, valid and binding obligation
       of the lessor thereof, enforceable in accordance with its
       terms.

            (aa) Set forth on Schedule IX hereto is a complete and
       accurate list of all Investments held by the Guarantor, the
       Company or any of their Subsidiaries, showing as of the 
       date hereof the amount, obligor or issuer and maturity, if
       any, thereof.

            (bb) Set forth on Schedule X hereto is a complete and
       accurate list of all patents, trademarks, trade names,
       service marks and copyrights, and all applications therefor
       and licenses thereof, of the Guarantor, the Company or any
       of their Subsidiaries, showing as of the date hereof the
       jurisdiction in which registered, the registration number,
       the date of registration and the expiration date.
















  <PAGE>77



                              ARTICLE V

                      COVENANTS OF THE BORROWER

            SECTION 5.01.  Affirmative Covenants.  So long as any 
  Advance shall remain unpaid, any Letter of Credit shall be
  outstanding and shall not be fully cash collateralized pursuant
  to Section 2.04 or Section 6.02 or any Lender shall have any
  Commitment hereunder, the Borrower will:

            (a)  Compliance with Laws, Etc.    Comply, and cause
       each of its Subsidiaries to comply, in all material
       respects with all applicable laws, rules, regulations and
       orders (such compliance to include, without limitation,
       paying before the same become delinquent all taxes,
       assessments and governmental charges imposed upon it or
       upon its property except to the extent contested in good
       faith), the failure to comply with which would,
       individually or in the aggregate, be reasonably likely to
       have a Material Adverse Effect (in the case of clause (a)
       of the definition thereof,  the term "Person" shall mean
       the Borrower).
            (b)  Compliance with Environmental Laws.  Comply and
       cause each of its Subsidiaries and all lessees and all
       other Persons occupying its properties to comply, in all
       material respects, with all Environmental Laws and
       Environmental Permits applicable to its operations and
       properties; obtain and renew all Environmental Permits
       necessary for its operations and properties; and conduct,
       and cause each of its Subsidiaries to conduct, any
       investigation, study, sampling and testing, and undertake
       any cleanup, removal, remedial or other action necessary to
       remove and clean up all Hazardous Materials from any of its
       properties, in accordance with the requirements of all
       Environmental Laws; provided, however, that neither the
       Borrower nor any of its Subsidiaries shall be required to
       undertake any such cleanup, removal, remedial or other
       action to the extent that its obligation to do so is being
       contested in good faith and by proper proceedings and
       appropriate reserves are being maintained with respect to 
       such circumstances.

            (c)  Maintenance of Insurance.  Maintain, and cause
       each of its Subsidiaries to maintain, insurance with
       responsible and reputable insurance companies or
       associations in such amounts and covering such risks as is
       usually carried by companies engaged in similar businesses
       and owning similar properties in the same general areas in
       which the Borrower or such Subsidiary operates.

















  <PAGE>78



            (d)  Preservation of Corporate Existence, Etc. 
       Preserve and maintain, and cause each of its Subsidiaries
       to preserve and maintain, its corporate existence, rights
       (charter and statutory) and franchises; provided, however,
       that the Purchaser and the Company may consummate the 
       Merger and any wholly-owned Subsidiary may consummate any
       other merger or consolidation permitted under Section
       5.02(c); provided further that, neither the Borrower nor
       any of its Subsidiaries shall be required to preserve any
       right or franchise if the Board of Directors of the
       Borrower or such Subsidiary shall determine that the
       preservation thereof is not longer desirable in the conduct
       of the business of the Borrower or such Subsidiary, as the
       case may be, and that the loss thereof is not
       disadvantageous in any material respect to the Borrower,
       such Subsidiary or the Lenders.

            (e)  Visitation Rights.  At any reasonable time and
       from time to time, upon reasonable prior notice permit the
       Administrative Agent or any of the Lenders or any agents or
       representatives thereof, to the extent reasonably requested
       to examine and make copies of and abstracts from the
       records and books of account of, and visit the properties 
       of, the Borrower and any of its Subsidiaries, and to
       discuss the affairs, finances and accounts of the Borrower
       and any of its Subsidiaries with any of their officers or
       directors and with their independent certified public
       accountants.

            (f)  Keeping of Books.  Keep, and cause each of its
       Subsidiaries to keep, proper books of record and account,
       in which full and correct entries shall be made of all
       financial transactions and the assets and business of the
       Borrower and each such Subsidiary to the extent necessary
       to permit the preparation of the financial statements
       required to be delivered hereunder.

            (g)  Maintenance of Properties, Etc.  Maintain and
       preserve, and cause each of its Subsidiaries to maintain
       and preserve, all of its properties that are used or useful
       in the conduct of its business in good working order and 
       condition, ordinary wear and tear excepted.

            (h)  Tender Offer.  Cause the Consummation of the
       Tender Offer to occur as soon as practicable after the
       initial Borrowing but in no event later than the 20th day
       thereafter on the following terms and conditions:

                 (i)  the Tender Offer shall have been consummated
            strictly in accordance with the terms of the Merger
            Agreement and the Offer to Purchase, without any
















  <PAGE>79



            waiver or amendment to which the Administrative Agent
            or the








  <PAGE>80



            Required Lenders shall have objected within a
            reasonable period after being notified of such waiver
            of amendment by the Borrower, and in compliance with
            all applicable laws; the Company's Board of Directors
            shall have approved the Tender Offer and the Merger 
            and recommend that its Shareholders tender their
            Company Stock pursuant to the Tender Offer, and such
            recommendation shall have not been withdrawn or
            qualified in a manner adverse to NHL or the Purchaser;

                 (ii) The Administrative Agent shall have received
            on or before the date of the Consummation of the
            Tender Offer the following, each dated as of the date
            of the Consummation of the Tender Offer, in form and
            substance satisfactory to the Administrative Agent
            (unless otherwise specified) and in sufficient copies
            for each Lender:

                      (w)  certified copies of the resolutions of
                 the board of directors of the Company and each of
                 its Subsidiaries approving the Tender Offer, the
                 Merger, each Loan Document and each Related
                 Document to which it is or is to be a party, and 
                 of all documents evidencing other necessary
                 corporate action and governmental approvals, if
                 any, with respect to the Tender Offer, the
                 Merger, each Loan Document and each Related
                 Document;

                      (x)  a certificate of the Secretary or an
                 Assistant Secretary of the Company and each of
                 its Subsidiaries certifying the names and true
                 signatures of the officers of the Company and
                 such Subsidiary authorized to sign each Loan
                 Document and each Related Document to which they
                 are or are to be parties and the other documents
                 to be delivered hereunder and thereunder; 

                      (y)  a certificate of the Company and each
                 of its Subsidiaries signed on behalf of the
                 Company and such Subsidiary by its President or a 
                 Vice President and its Secretary or any Assistant
                 Secretary, dated as of the date of the
                 Consummation of the Tender Offer (the statements
                 made in such certificate shall be true on and as
                 of the date of the Consummation of the Tender
                 Offer), certifying as to (A) the absence of any
                 amendments to the Charter of the Company or such
                 Subsidiary since the date of the Secretary of
                 State's certificate referred to in
                 Section 3.01(i)(v),  (B) a true and correct copy 















  <PAGE>81



                 of the bylaws of the Company or such Subsidiary
                 as in effect on the date of the Consummation of
                 the Tender Offer, (C) the due incorporation and
                 good standing of the Company or such Subsidiary,
                 as a corporation organized under the laws of the 
                 State of Delaware, and the absence of any
                 proceeding for the dissolution or liquidation of
                 the Company or such Subsidiary, (D) the truth in
                 all material respects of the representations and
                 warranties contained in Loan Documents as though
                 made on and as of the date of the Consummation of
                 the Tender Offer and (E) the absence of any event
                 occurring and continuing, or resulting from the
                 Consummation of the Tender Offer, that
                 constitutes a Default; and

                      (z)  a revised Schedule XII describing, in
                 addition to the Liens described on such Schedule
                 as of the date hereof, the Liens existing on the
                 date of the Consummation of the Tender Offer upon
                 or in any property of the Company or any
                 Subsidiary of the Company.
            (i)  Termination of Financing Statements.  Upon the
       request of the Administrative Agent, and at the expense of
       the Borrower, within 10 days after such request, furnish to
       the Administrative Agent proper termination statements on
       Form UCC-3 covering such financing statements as the
       Administrative Agent may reasonably request that were
       listed in the completed requests for information referred
       to in Section 3.01(i)(viii)(C).

            (j)  Performance of Material Contracts.  Cause each of
       its Subsidiaries to perform and observe all the terms and
       provisions of each Material Contract to be performed or
       observed by it; provided, however, that none of the
       Borrower's Subsidiaries shall be required to perform any
       such obligation that is being contested in good faith and
       by proper proceeding and as to which appropriate reserves
       are being maintained.
            (k)  Cash Concentration Accounts.  (i) Maintain main
       cash concentration accounts with Citibank and  (ii)
       maintain Lockbox Accounts into which all proceeds of
       Collateral are paid with Citibank or one or more banks
       acceptable to the Administrative Agent.

            (l)  Interest Rate Hedging.  If the Threshold Date has
       not occurred on or prior to December 31, 1994, enter into
       prior to December 31, 1994, and maintain at all times

















  <PAGE>82



       thereafter, interest rate Hedge Agreements with Persons
       acceptable to the Required Lenders, covering a notional
       amount of not less than 35% of the outstanding Advances at
       such time and providing for such Persons to make payments
       thereunder for a period of no less than 3 years to the 
       extent of increases in interest rates based on LIBOR.

            (m)  Merger.  Cause the Purchaser to consummate the
       Merger on or prior to the 150th day following the
       Consummation of the Tender Offer on the following terms and
       conditions:

            (i)  The Merger Agreement shall be in full force and
                 effect, without any waiver or amendment to which
                 the Administrative Agent or the Required Lenders
                 shall have objected within a reasonable period
                 after being notified of such waiver or amendment
                 by the Borrower; the Merger as described in the
                 Proxy Statement shall conform to the terms of the
                 merger set forth in the Merger Agreement; and the
                 Proxy Statement and all other documentation
                 relating to the Merger shall be in form and
                 substance reasonably satisfactory to the Lenders;
            (ii) The Merger shall have been consummated in
                 compliance with all applicable laws, and in
                 accordance with the terms of the Merger Agreement
                 and the Proxy Statement, without any waiver or
                 amendment to which the Administrative Agent or
                 the Required Lenders shall have objected within a
                 reasonable period after being notified of such
                 waiver or amendment by the Borrower;

                       (iii)  The Company's Board of Directors shall have
                 approved the Merger and recommended that its
                 shareholders vote in favor of the Merger, and
                 such recommendation shall not have been withdrawn
                 or qualified in a manner adverse to the Borrower,
                 the Company or the Lenders;

            (iv) All governmental and third-party consents and 
                 approvals necessary in connection with the Merger
                 shall have been obtained (without the imposition
                 of any material conditions that are not
                 reasonably acceptable to the Lenders) and shall
                 remain in effect; all applicable waiting periods
                 shall have expired or been terminated without any
                 action being taken by any competent authority;
                 and no law or regulation shall be applicable in
                 the reasonable judgment of the Lenders that
                 restrains,
















  <PAGE>83



                 prevents or imposes materially adverse conditions
                 upon the Merger; and

            (v)  The Administrative Agent shall have received on
                 or before the consummation of the Merger the  
                 following, each dated such day, in form and
                 substance reasonably satisfactory to the Lenders
                 in sufficient copies for each Lender:  (A) a
                 security agreement supplement in substantially
                 the form of Exhibit C to the Security Agreement,
                 duly executed by the Company and each of its
                 Subsidiaries organized under the laws of one of
                 the states of the United States of America,
                 together with (1) certificates representing the
                 Pledged Shares referred to therein accompanied by
                 undated stock powers executed in blank and
                 instruments evidencing the Pledged Debt referred
                 to therein endorsed in blank, (2) acknowledgment
                 copies of proper financing statements, duly filed
                 on or before the consummation of the Merger under
                 the Uniform Commercial Code of all jurisdictions
                 that the Administrative Agent may deem necessary
                 or desirable in order to perfect and protect the 
                 Liens created by the Security Agreement in
                 respect of the property and assets of the Company
                 and its Subsidiaries, (3) evidence of the
                 completion of all other recordings and filings of
                 or with respect to the Security Agreement that
                 the Administrative Agent may deem necessary or
                 desirable in order to perfect and protect the
                 Liens created thereby in respect of the property
                 and assets of the Company, (4) the Lockbox
                 Letters referred to in the Security Agreement
                 relating to the Company and its Subsidiaries, and
                 (5) evidence that all other action that the
                 Administrative Agent may deem necessary or
                 desirable in order to perfect and protect the
                 Liens created by the Security Agreement in
                 respect of the property and assets of the Company
                 and its Subsidiaries have been taken; (B) a
                 subsidiary guaranty supplement in substantially 
                 the form of Exhibit A to the Subsidiary Guaranty
                 duly executed by the Company and each of its
                 Subsidiaries organized under the laws of one of
                 the states of the United States; (C) a favorable
                 opinion of counsel for the Company reasonably
                 satisfactory to the Required Lenders, in form and
                 substance reasonably satisfactory to the Required
                 Lenders and as to such other matters as any
                 Lender through the Administrative Agent may
                 reasonably request; (D) a favorable opinion of
















  <PAGE>84



                 Cravath, Swaine & Moore, special New York counsel
                 to the Borrower to the effect that the Merger has
                 become effective in accordance with the Merger
                 Agreement and the General Corporation Law of the
                 State of Delaware; and (E) certified copies of a 
                 certificate of merger or other confirmation from
                 the Secretary of State of the State of Delaware
                 reasonably satisfactory to the Lenders of the
                 consummation of the Merger.

            (n)  Activities of the Company.  From and after the
       date on which Persons designated or approved by the
       Borrower shall constitute a majority of the board of
       directors of the Company until the consummation of the
       Merger, cause the Company (i) to perform and observe each
       of its obligations and covenants in the Merger Agreement,
       (ii) not to issue any securities, rights or options other
       than (x) the issuance of any common stock of the Company
       pursuant to the Note Agreement dated as of December 1, 1991
       relating to the 7.375% Convertible Senior Subordinated
       Notes of the Company or (y) the issuance of stock, stock
       options or stock-based awards pursuant to a stock plan of
       the Company or any Subsidiary of the Company and (iii) not 
       to declare or make any dividends or distributions to
       shareholders as such.

            (o)  Real Estate Collateral.  On or prior to the 180th
       day following the consummation of the Tender Offer, the
       Administrative Agent shall have received deeds of trust,
       trust deeds, mortgages, leasehold mortgages and leasehold
       deeds of trust in substantially the form of Exhibit M and
       covering the properties listed on Schedule XI or such other
       properties as the Required Lenders may approve (as amended
       from time to time in accordance with their terms, the
       "Mortgages"), duly executed by NHL, the Company and their
       respective subsidiaries, as the case may be, together with:

                 (i)  evidence that counterparts of the Mortgages
            have been duly recorded on or before such day in all
            filing or recording offices that the Administrative
            Agent may deem necessary or desirable in order to 
            create a valid first and subsisting Lien on the
            property described therein in favor of the Lenders and
            that all filing and recording taxes and fees have been
            paid,

                 (ii) fully paid American Land Title Association
            Lender's Extended Coverage title insurance policies
            (the "Mortgage Policies") in form and substance, with
            endorsements and in amounts acceptable to the
            Administrative Agent, issued, coinsured and reinsured
















  <PAGE>85



            by title insurers acceptable to the Administrative
            Agent, insuring the Mortgages to be valid first and
            subsisting Liens on the property described therein,
            free and clear of all defects (including, but not
            limited to, mechanics' and materialmen's Liens) and 
            encumbrances, excepting only Permitted Encumbrances,
            and providing for such other affirmative insurance
            (including indorsements for future advances under the
            Loan Documents and for mechanics' and materialmen's
            Liens) and such coinsurance and direct access
            reinsurance as the Administrative Agent may deem
            necessary or desirable,

                 (iii) for each property described in a Mortgage
            and which is either owned in fee by a Loan Party or
            that is a free-standing leasehold property, American
            Land Title Association form surveys, dated or brought
            to date no more than 120 days before such day
            certified to the Administrative Agent and the issuer
            of the Mortgage Policies in a manner reasonably
            satisfactory to the Administrative Agent by a land
            surveyor duly registered and licensed in the States in
            which the property described in such surveys is 
            located and reasonably acceptable to the
            Administrative Agent, showing all buildings and other
            improvements, any off-site improvements, the location
            of any easements, parking spaces, rights of way,
            building set-back lines and other dimensional
            regulations and the absence of encroachments, either
            by such improvements or on to such property, and other
            defects, other than encroachments and other defects
            acceptable to the Administrative Agent,

                 (iv) an appraisal of each of the properties
            described in the Mortgages (for which an appraisal is
            required by the Federal Financial Institutions Reform,
            Recovery and Enforcement Act of 1989 as determined by
            the Administrative Agent) complying with the
            requirements of the Federal Financial Institutions
            Reform, Recovery and Enforcement Act of 1989,
                 (v)  engineering, soils and other reports as to
            the properties described in the Mortgages, in form and
            substance and from professional firms acceptable to
            the Administrative Agent,

                 (vi) the Assignments of Leases and Rents referred
            to in the Mortgages, duly executed by the Borrower,



















  <PAGE>86



                 (vii) such consents and agreements of lessors and
            other third parties, and such estoppel letters and
            other confirmations, as the Administrative Agent may
            deem necessary or desirable, and
                 (viii) evidence of the insurance required by the
            terms of the Mortgages.

            (p)  Net Worth.  Maintain, at the end of each fiscal
       quarter, Stockholders' Equity of not less than
       $125,000,000, plus the aggregate amount of capital
       contributions made to the Borrower's capital from the date
       hereof, plus 65% of the cumulative Net Income of the
       Borrower for the period beginning June 1, 1994 and ending
       on such last day of such fiscal quarter.

            (q)  EBITDA to Interest Expense.  Maintain as of the
       end of each fiscal quarter of the Borrower an Interest
       Coverage Ratio of not less than the ratio set forth below
       for such fiscal quarter:
                      Four Fiscal Quarters         Ratio
                           Ending in                          

                     September 1994                4.5:1

                     December 1994                 4.5:1

                     March 1995                    4.5:1

                     June 1995                     4.5:1

                     September 1995                4.5:1

                     December 1995                 4.5:1

                     March 1996                    5.0:1

                     June 1996                     5.0:1

                     September 1996                5.0:1

                     December 1996                 5.0:1

                     March 1997                    5.5:1

                     June 1997                     5.5:1

                     September 1997                5.5:1

                     December 1997                 5.5:1

                     March 1998                    6.0:1

                     June 1998                     6.0:1

                     September 1998                6.0:1

                     December 1998                 6.0:1 














  <PAGE>87




                      Four Fiscal Quarters         Ratio
                           Ending in                          
                     March 1999                    6.0:1

                     June 1999                     6.0:1

                     September 1999                6.0:1

                     December 1999                 6.0:1

                     March 2000                    6.0:1

                     June 2000                     6.0:1

                     September 2000                6.0:1

                     December 2000                 6.0:1

       (r)  Debt to EBITDA.  Maintain at the end of each fiscal
  quarter of the Borrower a ratio of Consolidated Debt of the
  Borrower and its Subsidiaries as of the end of such fiscal
  quarter to EBITDA in the aggregate for the four fiscal quarters
  then ended of not more than the ratio set forth below for such
  fiscal quarter:
                      Four Fiscal Quarters         Ratio
                           Ending in                          

                     September 1994                4.25:1

                     December 1994                 4.00:1

                     March 1995                    3.50:1

                     June 1995                     3.50:1

                     September 1995                3.50:1

                     December 1995                 3.50:1

                     March 1996                    3.00:1

                     June 1996                     3.00:1
                     September 1996                3.00:1

                     December 1996                 3.00:1
                     March 1997                    2.50:1

                     June 1997                     2.50:1
                     September 1997                2.50:1

                     December 1997                 2.50:1
                     March 1998                    2.00:1

                     June 1998                     2.00:1

                     September 1998                2.00:1






 





  <PAGE>88



                      Four Fiscal Quarters         Ratio
                           Ending in                          

                     December 1998                 2.00:1

                     March 1999                    2.00:1

                     June 1999                     2.00:1

                     September 1999                2.00:1

                     December 1999                 2.00:1

                     March 2000                    2.00:1

                     June 2000                     2.00:1

                     September 2000                2.00:1

                     December 2000                 2.00:1

            (s)  Fixed Charge Coverage Ratio.  Maintain at the end
       of each fiscal quarter of the Borrower a Fixed Charge Ratio
       of not less than the ratio set forth below for each period
       set forth below: 

                      Four Fiscal Quarters         Ratio
                           Ending in                         

                     September 1994                1.00:1

                     December 1994                 1.15:1

                     March 1995                    1.20:1

                     June 1995                     1.25:1

                     September 1995                1.25:1

                     December 1995                 1.30:1

                     March 1996                    1.30:1

                     June 1996                     1.30:1

                     September 1996                1.30:1

                     December 1996                 1.30:1

                     March 1997                    1.40:1

                     June 1997                     1.40:1

                     September 1997                1.40:1

                     December 1997                 1.40:1

                     March 1998                    1.60:1

                     June 1998                     1.60:1

                     September 1998                1.60:1 













  <PAGE>89




                      Four Fiscal Quarters         Ratio
                           Ending in                         
                     December 1998                 1.60:1

                     March 1999                    1.70:1

                     June 1999                     1.70:1

                     September 1999                1.70:1

                     December 1999                 1.70:1

                     March 2000                    1.80:1

                     June 2000                     1.80:1

                     September 2000                1.80:1

                     December 2000                 1.80:1


            (t)  Reporting Requirements.  Furnish to the Lenders
       through the Administrative Agent:
                 (i)  as soon as available and in any event within
            50 days after the end of each of the first three
            quarters of each fiscal year of the Borrower,
            Consolidated balance sheets of the Borrower as of the
            end of such quarter and Consolidated statements of
            earnings, cash flows and stockholders' equity of the
            Borrower for the period commencing at the end of the
            previous fiscal year and ending with the end of such
            quarter, certified (subject to normal year-end audit
            adjustment and the absence of footnotes) on behalf of
            the Borrower by the chief financial officer of the
            Borrower;

                 (ii) as soon as available and in any event within
            105 days after the end of each fiscal year of the
            Borrower, a copy of the annual report on Form 10-K for
            such year for the Borrower and its Subsidiaries,  
            containing financial statements for such year
            certified in a manner reasonably acceptable to the
            Required Lenders by KPMG Peat Marwick or other
            independent public accountants reasonably acceptable
            to the Required Lenders;

                 (iii) together with each delivery of financial
            statements pursuant to clauses (i) and (ii) above,
            (A) a certificate executed on behalf of the Borrower
            by a senior officer of the Borrower stating that no
            Default has occurred and is continuing or, if a
            Default has occurred and is continuing, a statement as
            to the nature thereof and the action that the Borrower
            has taken and proposes to take with respect thereto
            and 












  <PAGE>90



            (B) a schedule in form reasonably satisfactory to the
            Administrative Agent of the computations used by the
            Borrower in determining compliance with the covenants
            contained in Sections 5.01(p), (q), (r) and (s);
                 (iv) as soon as possible and in any event within
            five days after knowledge of the occurrence of each
            Default continuing on the date of such statement, a
            statement executed on behalf of the Borrower by the
            chief financial officer of the Borrower setting forth
            details of such Default and the action which the
            Borrower has taken and proposes to take with respect
            thereto;

                 (v)  as soon as available and in any event no
            later than 15 days before the end of each fiscal year
            of the Borrower, forecasts prepared by management of
            the Borrower, in form satisfactory to the
            Administrative Agent, of balance sheets, income
            statements and cash flow statements on a quarterly
            basis for the fiscal year following such fiscal year
            than ending and on an annual basis for each fiscal
            year thereafter until the Termination Date;
                 (vi) promptly after the sending or filing
            thereof, copies of all reports which the Borrower
            sends to any of its public security holders, and
            copies of all Forms 10-K, 10-Q and 8-K, Schedules l3E-
            4 (including all exhibits filed therewith) and
            registration statements, and any other filings and
            statements that the Borrower or any Subsidiary files
            with the Securities and Exchange Commission or any
            national securities exchange;

                 (vii) promptly and in any event within (A) ten
            days after the filing or receiving thereof, copies of
            all reports and notices with respect to each Plan of
            the Borrower or any of its ERISA Affiliates which the
            Borrower or any of its ERISA Affiliates files under
            ERISA with the Internal Revenue Service or the PBGC or
            the U.S. Department of Labor or which the Borrower or 
            any of its ERISA Affiliates receives from the PBGC,
            other than a notice described in clause (D) of this
            Section 5.01(t)(vii), (B) ten days after the Borrower
            or any of its ERISA Affiliates knows or has reason to
            know that any ERISA Event with respect to the Borrower
            or any of its ERISA Affiliates has occurred, a
            statement of the chief financial officer of the
            Borrower describing such ERISA Event and the action,
            if any, that the Borrower or such ERISA Affiliate
            proposes









 





  <PAGE>91



            to take with respect thereto, (C) ten days after
            receipt thereof by the Borrower or any of its ERISA
            Affiliates from the sponsor of a Multiemployer Plan of
            the Borrower or any of its ERISA Affiliates, a copy of
            each notice received by any such Person concerning the 
            imposition of Withdrawal Liability upon such Person,
            the reorganization or termination of such
            Multiemployer Plan, or the amount of the liability
            incurred, or that may be incurred, by the Borrower or
            any of its ERISA Affiliates in connection with any
            such event and (D) five Business Days after receipt
            thereof by the Borrower or any of its ERISA
            Affiliates, copies of each notice from the PBGC
            stating its intention to terminate any Plan of the
            Borrower or any of its ERISA Affiliates or to have a
            trustee appointed to administer any such Plan;

                 (viii) in the event of any change in GAAP from
            the date of the financial statements referred to in
            Section 4.01(f) and upon delivery of any financial
            statement required to be furnished under clauses (i)
            or (ii) of this Section 5.01(t), a statement of
            reconciliation conforming any information contained in 
            such financial statement with GAAP as in effect on th
            date of the financial statements referred to in
            Section 4.01(f);

                 (ix) promptly upon any officer of the Borrower
            obtaining knowledge thereof, written notice of (A) the
            institution or non-frivolous threat of any action,
            suit, proceeding, governmental investigation or
            arbitration against or affecting the Borrower or any
            of its Subsidiaries or any property of the Borrower or
            any of its Subsidiaries (any such action, suit,
            proceeding, investigation or arbitration being a
            "Proceeding") or (B) any material development in any
            Proceeding that is already pending, where such
            Proceeding or development has not previously been
            disclosed by the Borrower hereunder and would be
            reasonably likely to have a Material Adverse Effect
            (in the case of clause (a) of the definition of 
            Material Adverse Effect, the term "Person" shall mean
            the Borrower); together in each case with such other
            information as any Lender through the Administrative
            Agent may reasonably request to enable the Lenders and
            their counsel to evaluate such matters;

                 (x) promptly after the furnishing thereof, copies
            of any statement or report furnished to any other
            holder of the securities of the Guarantor or of any of
            its Subsidiaries pursuant to the terms of any
















  <PAGE>92



            indenture, loan or credit or similar agreement and not
            otherwise required to be furnished to the Lenders
            pursuant to any other clause of this Section 5.01(t);

                 (xi)  promptly upon receipt thereof, copies of 
            all notices, requests and other documents received by
            the Guarantor or any of its Subsidiaries under or
            pursuant to any Related Document and, from time to
            time upon request by the Administrative Agent, such
            information and reports regarding the Related
            Documents as the Administrative Agent may reasonably
            request;

                 (xii) within 10 days after receipt, copies of all
            Revenue Administrative Agent Reports (Internal Revenue
            Service Form 886), or other written proposals of the
            Internal Revenue Service, that propose, determine or
            otherwise set forth positive adjustments to the
            Federal income tax liability of the affiliated group
            (within the meaning of Section 1504(a)(1) of the
            Internal Revenue Code) of which the Borrower is a
            member aggregating $5,000,000 or more;
                 (xiii) promptly, and in any event within five
            Business Days after the due date (with extensions) for
            filing the final Federal income tax return in respect
            of each taxable year, a certificate of the Borrower (a
            "Tax Certificate"), signed on behalf of the Borrower
            by the President or the chief financial officer of the
            Borrower, stating that the common parent of the
            affiliated group (within the meaning of
            Section 1504(a)(1) of the Internal Revenue Code) of
            which the Borrower is a member has paid to the
            Internal Revenue Service or other taxing authority the
            full amount that such affiliated group is required to
            pay in respect of Federal income tax for such year and
            that the Borrower and its Subsidiaries have received
            any amounts payable to them, and have not paid amounts
            in respect of taxes (Federal, state, local or foreign)
            in excess of the amount they are required to pay,
            under the Tax Agreement in respect of such taxable 
            year;

                 (xiv) promptly after the occurrence thereof,
            notice of any condition or occurrence on any property
            of the Guarantor or any of its Subsidiaries that
            results in a material noncompliance by the Guarantor
            or any of its Subsidiaries with any Environmental Law
            or Environmental Permit or would be reasonably likely
            to (i) form the basis of an Environmental Action
            against the Guarantor or any of its Subsidiaries or
            any such property that would be reasonably likely to
            have a














  <PAGE>93



            Material Adverse Effect (in the case of clause (a) of
            the definition of Material Adverse Effect, the term
            "Person" shall mean the Borrower) or (ii) cause any
            such property to be subject to any restrictions on
            ownership, occupancy, use or transferability under any 
            Environmental Law or Environmental Permit or would be
            reasonably likely to (i) form the basis of an
            Environmental Action against any Loan Party or any of
            its Subsidiaries or such property that could have a
            Material Adverse Effect (in the case of clause (a) of
            the definition of Material Adverse Effect, the term
            "Person" shall mean the Borrower) or (ii) cause any
            such property to be subject to any restrictions on
            ownership, occupancy, use or transferability under any
            Environmental Law; and

                 (xv) such other information respecting the
            condition (financial or otherwise), operations, assets
            or business of the Borrower or any of its Subsidiaries
            as any Lender through the Administrative Agent may
            from time to time reasonably request.

            (u)  Monthly Financial Statements.  During the period 
       from the date of the Consummation of the Tender Offer
       through the one year anniversary of such date, the Borrower
       will furnish to the Administrative Agent as soon as
       available, and in any event within 30 days after the end of
       each calendar month, a consolidated balance sheet of the
       Borrower and its Subsidiaries as of the end of such month
       and consolidated statements of income and cash flows and
       divisional operational results of the Borrower and its
       Subsidiaries for the period commencing at the end of the
       previous month and ending with the end of such month, duly
       certified on behalf of the Borrower by the chief financial
       officer of the Borrower (but which need not include a GAAP
       certification).

            (v)  Transactions with Affiliates.  Conduct, and cause
       each of its Subsidiaries to conduct, all transactions
       otherwise permitted under this Agreement with any of their
       Affiliates (other than the Borrower or any of its 
       Subsidiaries) on terms that are fair and reasonable and no
       less favorable to the Borrower or such Subsidiary than it
       would obtain in a comparable arm's-length transaction with
       a Person that is not an Affiliate; provided, however, that
       for purposes of this Section 5.01(v), the term "Affiliate"
       shall not include any officer or director of the Borrower
       or such Subsidiary, as the case may be, who does not
       possess directly or indirectly the power to vote 5% or more
       of the Voting Stock of the Borrower or its Subsidiaries;
       provided
















  <PAGE>94



       further that nothing in this Section 5.01(v) shall restrict
       the ability of the Borrower and its Subsidiaries from
       making the payments required to be made by the Borrower and
       its Subsidiaries under the Tax Agreement.
            (w)  Use of Proceeds.  Use the proceeds of the
       Advances as follows:  (i) to finance the purchase by the
       Purchaser of all of the shares of the Company Stock
       tendered in the Tender Offer, (ii) to finance the Merger,
       (iii) to prepay amounts outstanding under the 1993 Credit
       Agreement and the 1994 Credit Agreement on the date of the
       initial Borrowing hereunder, (iv) to refinance certain
       Existing Debt of the Company and NHL, (v) to pay
       transaction costs and expenses and (v) for the general
       corporate purposes of the Borrower and its Subsidiaries.

            (x)  Corporate Separateness.  Take, and cause each of
       its Subsidiaries to take, the following actions:

                 (i)  pay all of its obligations, indebtedness and
            expenses (except, in each case, to the extent
            contested in good faith and by proper proceedings and
            as to which appropriate reserves are being maintained) 
            and not encourage creditors of the Borrower or such
            Subsidiary, as the case may be, to look to Public
            Holdings for such payment;

                 (ii) maintain adequate capitalization for
            purposes of conducting the business it proposes to
            conduct;

                 (iii) maintain a business office or offices which
            are plainly identified to the public as being separate
            from the business offices of Public Holdings, and
            maintain a mailing address in its own name and not in
            the name of Public Holdings;

                 (iv) keep its corporate records and books of
            account separate from those of Public Holdings;

                 (v)  maintain its bank accounts separate from 
            those of Public Holdings and not commingle any of its
            funds with those of Public Holdings;

                 (vi) prepare financial statements separate from
            those of Public Holdings;

                 (vii) observe appropriate corporate formalities
            with respect to all transactions and dealings between
            Public Holdings on the one hand and the Borrower and
            its Subsidiaries on the other, and properly reflect
            all















  <PAGE>95



            such transactions and dealings in the Borrower's or
            such Subsidiary's accounting records.

                 (viii) ensure that all transfers of assets
            between Public Holdings on the one hand and the  
            Borrower and its Subsidiaries on the other are in
            compliance with Section 5.01(v) or by way of capital
            contribution;

                 (ix) hold itself out to the public (including
            each of the creditors of the Borrower, its
            Subsidiaries and Public Holdings) as a corporate
            entity separate and distinct from Holdings;

                 (x)  not become a debtor of Public Holdings and
            not have Public Holdings guarantee any Debt or other
            liability of the Borrower or any of its Subsidiaries;
            and 

                 (xi) not guarantee any Debt or other liability of
       Public Holdings.

            SECTION 5.02.   Negative Covenants.  So long as any 
  Advance shall remain unpaid, any Letter of Credit shall be
  outstanding and shall not be fully cash collateralized pursuant
  to Section 2.04 or Section 6.02 or any Lender shall have any
  Commitment hereunder, the Borrower will not:

            (a)  Liens, Etc.  Create or suffer to exist, or permit
       any of its Subsidiaries to create or suffer to exist, any
       Lien, upon or with respect to any of its properties (other
       than treasury stock and Margin Stock), whether now owned or
       hereafter acquired, or sign or file, or permit its
       Subsidiaries to sign or file, under the Uniform Commercial
       Code of any jurisdiction, a financing statement that names
       the Borrower or any of its Subsidiaries as debtor, or sign,
       or permit any of its Subsidiaries to sign, any security
       agreement authorizing any secured party thereunder to file
       such financing statement, or assign, or permit any of its
       Subsidiaries to assign, any right to receive income, other
       than the following Liens:  (i) Liens created by the Loan 
       Documents; (ii) the Liens described on Schedule XII; (iii)
       Liens upon or in any property of the Subsidiaries of the
       Borrower (other than Liens upon or in property acquired as
       part of a Permitted Acquisition securing Funded Debt
       incurred in connection with such Permitted Acquisition)
       created at the time of acquisition of such property or
       improvements thereto to secure the purchase price of such
       property or to secure indebtedness incurred solely for the
       purpose of financing the acquisition of such property or
       any subsequent improvements thereto provided such Liens do
       not















  <PAGE>96



       extend to any other property of such Subsidiaries; (iv)
       Liens existing on such property at the time of its
       acquisition (other than any such Lien created in
       contemplation of such acquisition); (v) Liens securing Debt
       incurred to refinance Debt referred to in clause (iii) or 
       (iv) above, provided that such Liens are limited to the
       same property securing the Debt so refinanced, the
       principal amount of such Debt shall not be greater than the
       principal amount of the Debt so refinanced, and any direct
       or contingent obligor of the Debt secured thereby have not
       been changed; (vi) mechanics', materialmen's, carriers' and
       similar Liens arising in the ordinary course of business
       securing obligations that are not overdue for a period of
       more than 30 days or which are being contested in good
       faith and by proper proceedings and as to which appropriate
       reserves are being maintained; (vii) deposits or Liens to
       secure the performance of letters of credit, statutory
       obligations, surety and appeal bonds, performance bonds and
       other obligations of like nature incurred in the ordinary
       course of business; (viii) Liens securing Capitalized
       Leases; (ix) Liens for taxes, assessments and governmental
       charges or levies not yet due and payable or which are
       being contested in good faith and by proper proceedings and 
       as to which appropriate reserves are being maintained; (x)
       Permitted Encumbrances; and (xi) judgment or other similar
       Liens, provided that there shall be no period of more than
       10 consecutive days during which a stay of enforcement of
       the related judgment shall not be in effect.

            (b)  Lease Obligations.  Create, incur, assume or
       suffer to exist, or permit any of its Subsidiaries to
       create, incur, assume or suffer to exist, any obligations
       as lessee (i) for the rental or hire of real or personal
       property in connection with any sale and leaseback
       transaction, or (ii) for the rental or hire of other real
       or personal property of any kind under leases or agreements
       to lease having an original term of one year or more that
       would cause the direct and contingent liabilities of the
       Borrower and its Subsidiaries, on a Consolidated basis, in
       respect of all such obligations in any period set forth
       below to exceed the amount set forth below for such period:
            Year Ending In              Amount

             December 1994           $40,000,000
             December 1995           $50,000,000
             December 1996           $55,000,000
             December 1997           $60,000,000
             December 1998           $65,000,000
             December 1999           $70,000,000

















  <PAGE>97



             December 2000           $75,000,000

            (c)  Mergers, Etc.  Merge into or consolidate with any
       Person or permit any Person to merge into it, or permit any
       of its Subsidiaries to do so, except that (i) the Borrower
       and its Subsidiaries may consummate the Merger and (ii) any
       wholly-owned Subsidiary of the Borrower may merge into or
       consolidate with any other Subsidiary of the Borrower
       provided that, in the case of any such consolidation, the
       Person formed by such consolidation shall be a wholly-owned
       Subsidiary of the Borrower; provided, however, that in each
       case, immediately after giving effect thereto, no event
       shall occur and be continuing that constitutes a Default. 

            (d)  Sales, Etc. of Assets.  Sell, lease, transfer or
       otherwise dispose of, or permit any of its Subsidiaries to
       sell, lease, transfer or otherwise dispose of, any assets
       or grant any option or other right to purchase, lease or
       otherwise acquire any Collateral other than in the ordinary
       course of its business, except (i) sales in the ordinary
       course of its business, (ii) dispositions of obsolete, worn
       out or surplus property disposed of in the ordinary course
       of business, (iii) sales, leases, transfers or other 
       dispositions of assets by a wholly-owned Subsidiary of the
       Borrower with any other wholly-owned Subsidiary of the
       Borrower, (iv) in a transaction authorized by
       subsection (c) of this Section, (v) the disposition of
       Margin Stock for cash in an amount equal to the fair value
       of such Margin Stock on the date of such disposition,
       provided that such cash is invested in and held as Cash
       Equivalents, (vi) sales of assets for cash and for fair
       value in an aggregate amount not to exceed $10,000,000 in
       any year, (vii) the sale of any asset by any Subsidiary of
       the Borrower (other than a bulk sale of Inventory and a
       sale of Receivables other than delinquent accounts for
       collection purposes only) so long as (A) the purchase price
       paid to the Borrower or such Subsidiary for such asset
       shall be no less than the fair market value of such asset
       at the time of such sale, (B) the purchase price for such
       asset shall be paid to the Borrower or such Subsidiary
       solely in cash and (C) the aggregate purchase price paid to 
       the Borrower and all of its Subsidiaries for such asset an
       all other assets sold by the Borrower and its Subsidiaries
       during the same Fiscal Year pursuant to this clause (v)
       shall not exceed $25,000,000 and (D) the Borrower shall, on
       the date of such sale, prepay the Advances pursuant to, and
       in the order of priority set forth in, Section 2.05(b)(ii)
       in an aggregate principal amount equal to the Net Cash
       Proceeds received by the Borrower or such Subsidiary from
       the sale of such asset and (viii) so long as no Default
       shall occur and be continuing, the grant
















  <PAGE>98



       of any option or other right to purchase any asset in a
       transaction which would be permitted under the provisions
       of the next preceding clause (vii); provided, however,
       that, notwithstanding the foregoing, (x) the Purchaser
       shall not, prior to the consummation of the Merger, sell, 
       lease, transfer or otherwise dispose of any of its assets
       to NHL or the Borrower and (y) none of the Borrower's
       Subsidiaries shall sell, lease, transfer or otherwise
       dispose of any of its assets to the Borrower other than the
       payment by such Subsidiary of cash dividends to the
       Borrower.

            (e)  Dividends, Repurchases, Etc.  Declare or pay any
       dividends, purchase, redeem, retire, defease or otherwise
       acquire for value any of its capital stock or any warrants,
       rights or options to acquire such capital stock, now or
       hereafter outstanding, return any capital to its
       stockholders as such, make any distribution of assets,
       capital stock, warrants, rights, options, obligations or
       securities to its stockholders as such or issue or sell any
       capital stock or warrants, rights or options to acquire
       such capital stock,  or permit any of its Subsidiaries to
       purchase, redeem, retire, defease or otherwise acquire for 
       value any capital stock of the Borrower or any warrants,
       rights or options to acquire such capital stock or to issue
       or sell any capital stock or any warrants, rights or
       options to acquire such capital stock (other than to the
       Borrower), except that the Borrower may:

                 (i) declare and deliver dividends and
            distributions payable only in Common Stock or
            warrants, rights or options to acquire Common Stock; 

                 (ii) declare and pay cash dividends to its
            stockholders in an amount not to exceed in any fiscal
            year the lesser of (x) the amount of dividends paid by
            Public Holdings to its public stockholders in such
            fiscal year in accordance with the past practices of
            NHL and (y) 25% of net income of the Borrower for the
            fiscal year immediately preceding the year in which
            such dividend is paid in the case of each fiscal year 
            during the period from the date hereof through
            December 31, 2000, provided that the Borrower has not
            previously paid any dividend pursuant to clauses (iii)
            or (iv) below;

                 (iii) declare and pay cash dividends to its
            stockholders in an amount not to exceed $50,000,000
            during the period from the date hereof through
            December 31, 2000 in connection with the repurchase by
            Public Holdings of its Common Stock, provided that
            after















  <PAGE>99



            giving effect to any such dividend and the related
            repurchase of common stock the Stockholders' Equity of
            the Borrower shall be at least $100,000,000;

                 (iv) declare and pay cash dividends in addition 
            to those referred to in clause (iii) above to its
            stockholders in an amount not to exceed $50,000,000
            during the period from the date hereof through
            December 31, 2000 in connection with the repurchase by
            Public Holdings of its Common Stock, provided that (x)
            at the time of each such payment the long-term senior
            unsecured debt of the Borrower is rated at least BB+
            by Standard & Poor's Ratings Group and at least Ba1 by
            Moody's Investors Service, Inc. and (y) after giving
            effect to any such dividend, the ratio of Consolidated
            Debt of the Borrower and its Subsidiaries as of the
            date of such payment to the sum of Consolidated Debt
            of the Borrower and its Subsidiaries as of such date
            plus Stockholders' Equity as of such date is not more
            than .55 to 1;

                 (v)  declare and pay cash dividends to its
            stockholders in an amount not ot exceed the amount  
            necessary from time to tto pay actual expenses to
            Persons that are not Affiliates that are incidental to
            Public Holdings being a public reporting but non-
            operating corporation, provided that, on and after the
            date on which Public Holdings holds assets other than
            the capital stock of the Guarantor, such amounts shall
            not, in the aggregate, exceed $250,000 in any calendar
            year;

       provided, however, that, at the time of the payment
       referred to in clauses (ii), (iii), (iv) and (v) and after
       giving effect to such payment (and, in the case of clauses
       (iii) and (iv) thereof, the repurchase by Public Holdings
       of its Common Stock), no Default shall have occurred and be
       continuing; provided further that no payment referred to in
       clause (ii), (iii) or (iv) shall be made unless the
       Threshold Date shall have occurred on or prior to the 120th
       day following the consummation of the Tender Offer.
            (f)  Investments.  Make or hold, or permit any of its
       Subsidiaries to make or hold, any Investment in any Person,
       other than Investments (i) by the Purchaser in the Company
       as contemplated by the Offer to Purchase and the Merger
       Agreement, (ii) by the Borrower or the Company in any of
       their respective wholly-owned Subsidiaries or by any
       wholly-owned Subsidiary of the Borrower or the Company in
       any other wholly-owned Subsidiary of the Borrower, (iii) in
       any
















  <PAGE>100



       officer, director or employee of the Borrower (other than
       Ronald O. Perelman) in the ordinary course of business
       consistent with past practice, (iv) that are Permitted
       Acquisitions, (v) Investments by the Borrower and its
       Subsidiaries in Cash Equivalents and in Hedge Agreements in 
       an aggregate notional amount not to exceed at any time
       outstanding an amount equal to 100% of the aggregate
       outstanding Advances at such time, (vi) Investments by the
       Borrower in the Company prior to the consummation of the
       Merger in an amount not to exceed the amount necessary to
       repay in full the Company's 7.375% Convertible Senior
       Subordinated Notes due December 15, 2006, provided that
       such Investment is applied to the repayment of such
       Convertible Senior Subordinated Notes and (vii) other
       Investments in an aggregate amount invested at any one time
       outstanding not to exceed $10,000,000; provided, however,
       that each Subsidiary of the Borrower must execute and
       deliver to the Administrative Agent a security agreement
       supplement in substantially the form of Exhibit C to the
       Security Agreement and a subsidiary guaranty supplement in
       substantially the form of Exhibit A to the Subsidiary
       Guaranty.
            (g)  Change in Nature of Business.  Make, or permit
       any of its Subsidiaries to make, any material change in the
       nature of the business carried on at the date hereof by the
       Borrower, the Company and their Subsidiaries taken as a
       whole, except that, subject to the limitations set forth in
       Section 5.02(f), the Borrower and its subsidiaries may
       acquire (i) Control of any Person, or all or substantially
       all of the assets of any Person, substantially all the
       business of which consists of businesses that are not
       Materially Different Businesses, (ii) any other assets
       which the Borrower or such Subsidiary would not use in a
       Materially Different Business, or (iii) Control of any
       Person, substantially all the business of which consists of
       Materially Different Businesses, or other assets which
       constitute or would be used by the Borrower or such
       Subsidiary in a Materially Different Business, as long as
       (x) the consideration paid by the Borrower for any such
       acquisition pursuant to this clause (iii), together with 
       the aggregate consideration paid for all previous
       acquisitions pursuant to this clause (iii) during the term
       of this Agreement, does not exceed 20% of Consolidated
       total assets of the Borrower as of the last day of the
       fiscal quarter next preceding the date of such acquisition
       and (y) after giving effect thereto, no Default shall have
       occurred and be continuing.



















  <PAGE>101



            (h)  Acquisitions.  Make or permit any of its
       Subsidiaries to make acquisitions outside the ordinary
       course of business of assets of or equity in any Person
       ("Acquisitions") other than the following:  (i) the
       Acquisition of the Company; (ii) Investments permitted by 
       the terms of Section 5.02(f) (other than clause (iv)
       thereof); (iii) a Small Acquisition if the sum of the
       Purchase Price for such Small Acquisition plus the
       aggregate Purchase Price for all other Small Acquisitions
       in the current Calculation Period does not exceed the Small
       Acquisition Basket; and (iv) Small Acquisitions in any
       Calculation Period that are made in excess of the Small
       Acquisition Basket for such Calculation Period and Large
       Acquisitions if the following conditions are met:  (A)
       prior to such proposed Acquisition, the Borrower shall have
       delivered to the Administrative Agent and the Lenders
       Consolidated pro forma financial statements of the Borrower
       (including a balance sheet and statements of earnings, cash
       flows and stockholders' equity) as at the end of and for
       the most recent period of four fiscal quarters ending at
       least 45 days prior to the delivery of such financial
       statements, which financial statements shall (a) be
       certified (subject to normal year-end audit adjustments and 
       the absence of footnotes) on behalf of the Borrower by the
       chief financial officer of the Borrower, (b) give effect to
       all Acquisitions (including such proposed Acquisition) made
       or proposed to be made since the beginning of such period
       and (c) not give effect to the pretax charge to earnings
       for the fiscal quarter ended December 31, 1992 on account
       of the settlement of certain governmental claims, (B) the
       sum of the Purchase Price of such Small Acquisition or
       Large Acquisition, as the case may be, plus the aggregate
       Purchase Price of all other Acquisitions made in the
       current Calculation Period pursuant to this clause (iv)
       does not exceed the Large Acquisition Basket, and (C) the
       pro forma financial statements delivered pursuant to clause
       (iv)(A) above show (x) the Interest Coverage Ratio for such
       period is greater than 4:1 and (y) a ratio of Consolidated
       Debt of the Borrower and its Subsidiaries as at the end of
       such period to EBITDA for such period is less than 4:1;
       provided, however, that (x) the aggregate Purchase Price of 
       all Acquisitions made pursuant to this Section 5.02(h)
       during any Calculation Period shall not exceed (i)
       $75,000,000 if the Threshold Date has not occurred and (ii)
       $100,000,000 if the Threshold Date has occurred, and (y)
       the aggregate Purchase Price of all Acquisitions made
       pursuant to this Section 5.02(h) during the term hereof
       shall not exceed the Maximum Acquisition Basket; provided
       further that, at the time of the making of any Acquisition
       and after giving effect to such Acquisition, no Default
       shall have occurred and be continuing.
















  <PAGE>102



            (i)  Accounting Changes.  Make or permit, or permit
       any of its Subsidiaries to make or permit, any change in
       accounting policies affecting (i) the presentation of
       financial statements or (ii) reporting practices, except in
       either case as required or permitted by GAAP.
            (j)  Debt.  Create, incur, assume or suffer to exist,
       or permit any of its Subsidiaries to create, incur, assume
       or suffer to exist, any Debt other than:

                 (i)  in the case of the Borrower, 

                      (A)  Debt under the Loan Documents,

                      (B)  Debt in respect of the New Debt
                      Securities; and

                 (ii) in the case of any of its Subsidiaries,

                      (A)  Debt owed to the Borrower or to a
                      wholly-owned Subsidiary of the Borrower or,
                      in the case of a Subsidiary of the Company,
                      to the Company or a wholly-owned Subsidiary 
                      of the Company, in each case evidenced by a
                      promissory note in form acceptable to the
                      Administrative Agent and pledged to the
                      Lenders pursuant to the Security Agreement, 

                      (B)  Debt secured by Liens permitted by
                      Section 5.02(a)(iii) or (viii) not to exceed
                      in the aggregate (i) in the case of Section
                      5.02(a)(iii), $20,000,000, and (2) in the
                      case of Section 5.02(a)(viii), $15,000,000,

                      (C)  the Surviving Debt,

                      (D)  endorsement of negotiable instruments
                      for deposit or collection or similar
                      transactions in the ordinary course of
                      business,
                      (E)  unsecured trade payables of the kind
                      included in clause (b) of the definition of
                      Debt,

                      (F)  unsecured contingent obligations
                      arising in connection with a Permitted
                      Acquisition in an aggregate principal amount
                      not to exceed $50,000,000 at any time
                      outstanding, provided that each such
                      contingent obligation shall
















  <PAGE>103



                      not exceed an amount equal to 35% of the
                      Purchase Price of the related Permitted
                      Acquisition;

                      (G)  Debt of a Subsidiary existing at the 
                      time such Subsidiary is acquired and Debt
                      secured by Liens permitted by Section
                      5.02(a)(iv) in an aggregate principal amount
                      not to exceed $20,000,000 at any time
                      outstanding and any refunding or
                      refinancing, in whole or in part, of any
                      such Debt, provided that the principal
                      amount of such Debt shall not be increased
                      above the principal amount thereof
                      outstanding immediately prior to such
                      refunding or refinancing and the maturity
                      date of such refunding or refinancing shall
                      not be shortened as a result of or in
                      connection with such refunding or
                      refinancing, and

                      (H)   other Debt in an aggregate principal
                      amount not to exceed $10,000,000 at any time 
                      outstanding.

            (k)  Charter Amendments.  Amend, or permit any of its
       Subsidiaries to amend, its certificate of incorporation or
       bylaws.

            (l)  Prepayments, Etc. of Debt.  Prepay, redeem,
       purchase, defease or otherwise satisfy prior to the
       scheduled maturity thereof in any manner, or make any
       payment in violation of any subordination terms of, any
       Debt, other than (i) the prepayment of the Advances in
       accordance with the terms of this Agreement, (ii) regularly
       scheduled or required repayments or redemptions of
       Surviving Debt and (iii) the prepayment of the Company's
       7.375% Convertible Senior Subordinated Notes due December
       15, 2006 as contemplated by the Escrow Agreement, or amend,
       modify or change in any manner any term or condition of any
       Surviving Debt or the New Debt Securities, or permit any of 
       its Subsidiaries to do any of the foregoing other than to
       prepay any Debt payable to the Borrower.

            (m)  Amendment, Etc. of Tax Agreement.  Cancel or
       terminate the Tax Agreement or consent to or accept any
       cancellation or termination thereof, amend, modify or
       change in any manner any term or condition of or give any
       consent, waiver or approval thereunder, waive any default
       under or any breach of any term or condition of any Tax
       Agreement or agree in any manner to any other amendment,
       modification or















  <PAGE>104



       change of any term or condition of the Tax Agreement, or
       permit any of its Subsidiaries to do any of the foregoing;
       provided, however, that the addition of a new "Subsidiary"
       (as such term is defined in the Tax Agreement) as a party
       to the Tax Agreement upon its becoming a member of the "NHL 
       Group" (as such term is defined in the Tax Agreement) or
       the deletion of a party from the Tax Agreement upon its
       ceasing to be a member of the NHL Group shall not be
       considered an amendment, modification or change in any
       manner of the Tax Agreement.

            (n)  Cancellation, Etc. of Certain Material Contracts. 
       Permit any of its Subsidiaries to cancel or terminate any
       Material Contract of the type described in clause (a) of
       the definition thereof or consent to or accept any
       cancellation or termination thereof, in each case prior to
       the scheduled expiration thereof.

            (o)  Negative Pledge.  Enter into or suffer to exist,
       or permit any of its Subsidiaries to enter into or suffer
       to exist, any agreement prohibiting or conditioning the
       creation or assumption of any Lien upon any of its property
       or assets other than (i) in favor of the Administrative 
       Agent and the Lenders or (ii) in connection with (A) any
       Surviving Debt and any Debt outstanding on the date such
       Subsidiary first becomes a Subsidiary, (B) the New Debt
       Securities or (C) any Debt permitted by Section 5.02(j)
       secured by a Lien on specific property so long as such
       prohibition or conditions relates solely to the specific
       property securing such Debt.

            (p)  Partnerships.  Become a general partner in any
       general or limited partnership, or permit any of its
       Subsidiaries to do so, other than through a single-purpose
       Subsidiary established for the sole purpose of entering
       into such partnership so that the liability of the Borrower
       and its Subsidiaries with respect to such partnership will
       be limited to their investment in such Subsidiary.

            (q)  Capital Expenditures.  Not make, or permit any of
       its Subsidiaries to make, any Capital Expenditures that 
       would cause the aggregate of all such Capital Expenditures
       made by the Borrower and its Subsidiaries in any period set
       forth below to exceed the amount set forth below for such
       period: 





















  <PAGE>105




        7-month Period
           Ending In                   Amount
         December 1994              $ 28,000,000


        Year Ending In                 Amount

         December 1995                35,000,000
         December 1996                40,000,000
         December 1997                40,000,000
         December 1998                40,000,000
         December 1999                40,000,000
         December 2000                40,000,000

  ; provided, however, that if in any period specified above the
  amount of Capital Expenditures set forth above for such period
  exceeds the amount of Capital Expenditures actually made by the
  Borrower and its Subsidiaries in such period, the Borrower and
  its Subsidiaries shall be entitled to make additional Capital
  Expenditures in the next period specified above in an amount of
  up to the amount of such excess; provided further that the
  amount of Capital Expenditures actually made by the Borrower and
  its Subsidiaries in the seven-month period ending in December
  1994 shall not exceed $20,000,000 unless the amount in excess of 
  $20,000,000 shall be used in connection with the Capital
  Expenditures set forth on Schedule XIII and the Borrower shall
  have delivered a certificate to the Administrative Agent as to
  the use of such excess amounts in reasonable detail.


                             ARTICLE VI

                          EVENTS OF DEFAULT

            SECTION 6.01. Events of Default.  If any of the
  following events ("Events of Default") shall occur and be
  continuing:

            (a)  The Borrower shall fail to pay any principal of,
       or interest on, any Advance or any fees payable to the
       Administrative Agent or any Lender hereunder, in each case
       when the same becomes due and payable, or any Loan Party 
       shall fail to make any other payment hereunder within five
       Business Days after the same becomes due and payable; or

            (b)  Any representation or warranty made by any Loan
       Party or Public Holdings under or in connection with any 














  <PAGE>106



       Loan Document shall prove to have been incorrect in any
       material respect when made or confirmed; or

            (c)  (i) The Borrower shall fail to perform or observe
       any term, covenant or agreement contained in Sections 
       5.01(h), 5.01(i), 5.01(m), 5.01(n), 5.01(o), 5.01(p),
       5.01(q), 5.01(r), 5.01(s), 5.01(t), 5.01(u), 5.01(x) or
       5.02, or (ii) any Loan Party or Public Holdings shall fail
       to perform or observe any other term, covenant or agreement
       contained in any Loan Document on its part to be performed
       or observed if such failure shall remain unremedied for 30
       days after written notice thereof shall have been given to
       the Borrower by the Administrative Agent or any Lender; or

            (d)  Any Loan Party or any of its Subsidiaries or
       Public Holdings shall fail to pay any principal of or
       premium or interest on any Debt which is outstanding in a
       principal amount of at least $10,000,000 in the aggregate
       (but excluding Debt outstanding hereunder) of such Loan
       Party or such Subsidiary or Public Holdings (as the case
       may be), when the same becomes due and payable (whether by
       scheduled maturity, required prepayment, acceleration,
       demand or otherwise), and such failure shall continue after 
       the applicable grace period, if any, specified in the
       agreement or instrument relating to such Debt; or any other
       event shall occur or condition shall exist under any
       agreement or instrument relating to any such Debt (other
       than the Surviving Debt listed in Part II of Schedule II)
       and shall continue after the applicable grace period, if
       any, specified in such agreement or instrument, if the
       effect of such event or condition is to accelerate, or to
       permit the acceleration of, the maturity of such Debt; or
       any such Debt (other than the Surviving Debt listed in Part
       II of  Schedule II) shall be declared to be due and
       payable, or required to be prepaid (other than by a
       regularly scheduled required prepayment), redeemed,
       purchased or defeased, or an offer to prepay, redeem,
       purchase or defease such Debt shall be required to be made,
       in each case prior to the stated maturity thereof; or

            (e)  Any Loan Party or any of its Subsidiaries or 
       Public Holdings shall generally not pay its debts as such
       debts become due, or shall admit in writing its inability
       to pay its debts generally, or shall make a general
       assignment for the benefit of creditors; or any proceeding
       shall be instituted by or against any Loan Party or any of
       its Subsidiaries or Public Holdings seeking to adjudicate
       it a bankrupt or insolvent, or seeking liquidation, winding
       up, reorganization, arrangement, adjustment, protection,
       relief, or composition of it or its debts under any law
       relating to bankruptcy, insolvency or reorganization or
       relief of debtors, or seeking the entry of an order for
       relief or the appointment of a receiver, trustee, custodian
       or other













  <PAGE>107



       similar official for it or for any substantial part of its
       property and, in the case of any such proceeding instituted
       against it (but not instituted by it), either such
       proceeding shall remain undismissed or unstayed for a
       period of 45 days, or any of the actions sought in such 
       proceeding (including, without limitation, the entry of an
       order for relief against, or the appointment of a receiver,
       trustee, custodian or other similar official for, it or for
       any substantial part of its property) shall occur; or any
       Loan Party or any of its Subsidiaries or Public Holdings
       shall take any corporate action to authorize any of the
       actions set forth above in this Section 6.01(e); or 

             (f) Any judgment or order for the payment of money in
       excess of $10,000,000 shall be rendered against any Loan
       Party or any of its Subsidiaries or Public Holdings and
       there shall be any period of 10 consecutive days during
       which a stay of enforcement of such judgment or order, by
       reason of a pending appeal or otherwise, shall not be in
       effect unless such judgment or order shall have been
       vacated, satisfied or dismissed or bonded pending appeal;
       provided, however, that any such judgment or order shall
       not be an Event of Default under this Section 6.01(f) if 
       and for so long as (i) the entire amount of such judgment
       or order is covered by a valid and binding policy of
       insurance between the defendant and the insurer covering
       payment thereof and (ii) such insurer, which shall be rated
       at least "A" by A.M. Best Company, has been notified of,
       and has not disputed the claim made for payment of the
       amount of such judgment or order; or

            (g)  Any non-monetary judgment or order shall be
       rendered against any Loan Party or any of its Subsidiaries
       or Public Holdings that is reasonably likely to have a
       Material Adverse Effect (in the case of clause (a) of the
       definition of Material Adverse Effect, the term "Person"
       shall mean the Borrower) and there shall be any period of
       10 consecutive days during which a stay of enforcement of
       such judgment or order, by reason of a pending appeal or
       otherwise, shall not be in effect unless such judgment or
       order shall have been vacated, satisfied, discharged or 
       bonded pending appeal; or

            (h)  A Change of Control shall occur; or

            (i)  Any ERISA Event shall have occurred with respect
       to the Borrower or any of its ERISA Affiliates and such
       ERISA Event, together with any and all other ERISA Events
       that shall have occurred with respect to the Borrower or
       any of its ERISA Affiliates, is reasonably likely to result
       in a liability of the Borrower and its ERISA Affiliates
       with respect to any Plan of the Borrower or any of its
       ERISA Affiliates in excess of $20,000,000; or







 





  <PAGE>108



            (j)  The Borrower or any of its ERISA Affiliates shall
       have been notified by the sponsor of a Multiemployer Plan
       of the Borrower or any of its ERISA Affiliates that it has
       incurred Withdrawal Liability to such Multiemployer Plan in
       an amount that, when aggregated with all other amounts 
       required to be paid to Multiemployer Plans by the Borrower
       and its ERISA Affiliates as Withdrawal Liability
       (determined as of the date of such notification), exceeds
       $20,000,000 or requires payments exceeding $1,000,000 per
       annum; or
                                  
            (k)  The Borrower or any of its ERISA Affiliates shall
       have been notified by the sponsor of a Multiemployer Plan
       of the Borrower or any of its ERISA Affiliates that such
       Multiemployer Plan is in reorganization or is being
       terminated, within the meaning of Title IV of ERISA, and as
       a result of such reorganization or termination the
       aggregate annual contributions of the Borrower and its
       ERISA Affiliates to all Multiemployer Plans that are then
       in reorganization or being terminated have been or will be
       increased over the amounts contributed to such
       Multiemployer Plans for the plan years of such
       Multiemployer Plans immediately preceding the plan year in  
       which such reorganization or termination occurs by an
       amount exceeding $1,000,000; or

            (l)  any provision of any Loan Document after delivery
       thereof pursuant to Section 3.01 shall for any reason cease
       to be valid and binding on or enforceable against any Loan
       Party party to it or Public Holdings, or any such Loan
       Party or Public Holdings shall so state in writing; or

            (m)  any Collateral Document after delivery thereof
       pursuant to Section 3.01 or  Section 5.01(o) shall for any
       reason (other than pursuant to the terms thereof) cease to
       create a valid and perfected first priority Lien on the
       Collateral purported to be covered thereby;

  then, and in any such event, the Administrative Agent (i) shall
  at the request, or may with the consent, of the Required
  Lenders, by notice to the Borrower, declare the obligation of 
  each Lender to make Advances to be terminated, whereupon the
  same shall forthwith terminate, and (ii) shall at the request,
  or may with the consent, of the Required Lenders, by notice to
  the Borrower, declare the Notes, all interest thereon and all
  other amounts payable under this Agreement to be forthwith due
  and payable, whereupon the Notes, all such interest and all such
  amounts shall become and be forthwith due and payable, without
  presentment, demand, protest or further notice of any kind, all
  of which are hereby expressly waived by the Borrower; provided,
  however, that, in the event of an actual or deemed entry of an
  order for relief with respect to the Borrower under the Federal
  Bankruptcy Code, (A) the obligation of each Lender to make
  Advances shall automatically be terminated and (B) the Notes,
  all such interest












  <PAGE>109



  and all such amounts shall automatically become and be due and
  payable, without presentment, demand, protest or any notice of
  any kind, all of which are hereby expressly waived by the
  Borrower.
            SECTION 6.02.  Actions in Respect of the Letters of
  Credit Upon Default.  If any Event of Default shall have
  occurred and be continuing and the Administrative Agent shall
  have taken the action described in Section 6.01(ii), the
  Administrative Agent may make demand upon the Borrower to, and
  forthwith upon such demand the Borrower will, pay to the
  Administrative Agent on behalf of the Lenders in same day funds
  at the Administrative Agent's office designated in such demand,
  for deposit in the L/C Cash Collateral Account, an amount equal
  to the aggregate Available Amount of all Letters of Credit then
  outstanding.  If at any time the Administrative Agent determines
  that any funds held in the L/C Cash Collateral Account are
  subject to any right or claim of any Person other than the
  Administrative Agent and the Lenders or that the total amount of
  such funds is less than the aggregate Available Amount of all
  Letters of Credit, the Borrower will, forthwith upon demand by
  the Administrative Agent, pay to the Administrative Agent, as
  additional funds to be deposited and held in the L/C Cash 
  Collateral Account, an amount equal to the excess of (a) such
  aggregate Available Amount over (b) the total amount of funds,
  if any, then held in the L/C Cash Collateral Account that the
  Administrative Agent determines to be free and clear of any such
  right and claim.


                             ARTICLE VII

                      THE ADMINISTRATIVE AGENT

            SECTION 7.01.  Authorization and Action.  Each Lender
  hereby appoints and authorizes the Administrative Agent to take
  such action as agent on its behalf and to exercise such powers
  under this Agreement and the other Loan Documents as are
  delegated to the Administrative Agent by the terms hereof and
  thereof, together with such powers as are reasonably incidental
  thereto.  As to any matters not expressly provided for by the 
  Loan Documents (including, without limitation, enforcement or
  collection of the Notes), the Administrative Agent shall not be
  required to exercise any discretion or take any action, but
  shall be required to act or to refrain from acting (and shall be
  fully protected in so acting or refraining from acting) upon the
  instructions of the Required Lenders, and such instructions
  shall be binding upon all Lenders and all holders of Notes;
  provided, however, that the Administrative Agent shall not be
  required to take any action which exposes the Administrative
  Agent to personal liability or which is contrary to this
  Agreement or applicable law.  The Administrative Agent agrees to
  give to each Lender prompt notice of each notice and other
  report given to it by the Borrower pursuant to the terms of this
  Agreement.












  <PAGE>110



            SECTION 7.02.  Administrative Agent's Reliance, Etc. 
  Neither the Administrative Agent nor any of its directors,
  officers, agents or employees, shall be liable for any action
  taken or omitted to be taken by it or them under or in
  connection with the Loan Documents, except for its or their own 
  gross negligence or willful misconduct.  Without limitation of
  the generality of the foregoing, the Administrative Agent: (i)
  may treat the payee of any Note as the holder thereof until the
  Administrative Agent receives and accepts an Assignment and
  Acceptance entered into by the Lender that is the payee of such
  Note, as assignor, and an Eligible Assignee, as assignee, as
  provided in Section 8.07; (ii) may consult with legal counsel
  (including counsel for the Borrower), independent public
  accountants and other experts selected by it and shall not be
  liable for any action taken or omitted to be taken in good faith
  by it in accordance with the advice of such counsel, accountants
  or experts; (iii) makes no warranty or representation to any
  Lender and shall not be responsible to any Lender for any
  statements, warranties or representations (whether written or
  oral) made in or in connection with the Loan Documents; (iv)
  shall not have any duty to ascertain or to inquire as to the
  performance or observance of any of the terms, covenants or
  conditions of the Loan Documents on the part of the Borrower or 
  to inspect the property (including the books and records) of the
  Borrower; (v) shall not be responsible to any Lender for the due
  execution, legality, validity, enforceability, genuineness,
  sufficiency or value of, or the perfection or priority of any
  lien or security interest created or purported to be created
  under or in connection with the Loan Documents or any other
  instrument or document furnished pursuant hereto; and (vi) shall
  incur no liability under or in respect of the Loan Documents by
  acting upon any notice, consent, certificate or other instrument
  or writing (which may be by telecopier, telegram, cable or
  telex) believed by it to be genuine and signed or sent by the
  proper party or parties.

            SECTION 7.03.  Citicorp and Affiliates.  With respect
  to its Commitments, the Advances made by it and the Note issued
  to it, Citicorp shall have the same rights and powers under the
  Loan Documents as any other Lender and may exercise the same as
  though it were not the Administrative Agent and the term 
  "Lender" or "Lenders" shall, unless otherwise expressly
  indicated, include Citicorp hereunder in its individual
  capacity.  Citicorp and its affiliates may accept deposits from,
  lend money to, act as trustee under indentures of, accept
  investment banking engagements from and generally engage in any
  kind of business with, the Borrower, any of its Subsidiaries and
  any Person who may do business with or own securities of the
  Borrower or any such Subsidiary, all as if Citicorp were not the
  Administrative Agent and without any duty to account therefor to
  the Lenders.

            SECTION 7.04.  Lender Credit Decision.  Each Lender
  acknowledges that it has, independently and without reliance
  upon












  <PAGE>111



  the Administrative Agent or any other Lender and based on the
  financial statements referred to in Section 4.01(f) and such
  other documents and information as it has deemed appropriate,
  made its own credit analysis and decision to enter into this
  Agreement.  Each Lender also acknowledges that it will, 
  independently and without reliance upon the Administrative Agent
  or any other Lender and based on such documents and information
  as it shall deem appropriate at the time, continue to make its
  own credit decisions in taking or not taking action under this
  Agreement.

            SECTION 7.05.  Indemnification.  The Lenders agree to
  indemnify the Administrative Agent (to the extent not reimbursed
  by the Borrower), ratably according to the respective principal
  amounts of the Advances then owing to each of them (or if no
  Advances are at the time outstanding or if any Advances are then
  owing to Persons which are not Lenders, ratably according to the
  respective amounts of their Commitments), from and against any
  and all liabilities, obligations, losses, damages, penalties,
  actions, judgments, suits, costs, expenses or disbursements of
  any kind or nature whatsoever which may be imposed on, incurred
  by, or asserted against the Administrative Agent in any way
  relating to or arising out of the Loan Documents or any action 
  taken or omitted by the Administrative Agent under the Loan
  Documents, provided that no Lender shall be liable for any
  portion of such liabilities, obligations, losses, damages,
  penalties, actions, judgments, suits, costs, expenses or
  disbursements resulting from the Administrative Agent's gross
  negligence or willful misconduct.  Without limitation of the
  foregoing, each Lender agrees to reimburse the Administrative
  Agent promptly upon demand for its ratable share of unpaid fees
  owing to the Administrative Agent, and any out-of-pocket
  expenses (including counsel fees) incurred by the Administrative
  Agent, in connection with the preparation, execution, delivery,
  administration, modification, amendment or enforcement (whether
  through negotiations, legal proceedings or otherwise) of, or
  legal advice in respect of rights or responsibilities under, any
  Loan Document, to the extent that the Administrative Agent is
  not paid such fees, or the Administrative Agent is not
  reimbursed for such expenses, by the Borrower.
            SECTION 7.06.  Successor Administrative Agent.  The
  Administrative Agent may resign at any time by giving written
  notice thereof to the Lenders and the Borrower and may be
  removed at any time with or without cause by the Required
  Lenders.  Upon any such resignation or removal, the Required
  Lenders shall have the right to appoint, with the consent of the
  Borrower, a successor Administrative Agent which shall be a
  Lender, or if no Lender consents to act as Administrative Agent
  hereunder, an institution that would be permitted to be an
  Eligible Assignee hereunder.  If no successor Administrative
  Agent shall have been so appointed by the Required Lenders, and
  shall have accepted such appointment, within 30 days after the
  retiring













  <PAGE>112



  Administrative Agent's giving of notice of resignation or the
  Required Lenders' removal of the retiring Administrative Agent,
  then the retiring Administrative Agent may, on behalf of the
  Lenders, appoint a successor Administrative Agent, which shall
  be a commercial bank that is acceptable to the Borrower (which 
  shall not unreasonably withhold its approval).  Upon the
  acceptance of any appointment as Administrative Agent thereunder
  by a successor Administrative Agent, such successor
  Administrative Agent shall thereupon succeed to and become
  vested with all the rights, powers, privileges and duties of the
  retiring Administrative Agent, and the retiring Administrative
  Agent shall be discharged from its duties and obligations under
  the Loan Documents.  After any retiring Administrative Agent's
  resignation or removal hereunder as Administrative Agent, the
  provisions of this Article VII shall inure to its benefit as to
  any actions taken or omitted to be taken by it while it was
  Administrative Agent.

            SECTION 7.07.  Co-Agents.  Each Lender hereby
  acknowledges that each of the Co-Agents has no liability
  hereunder other than in its capacity as Lender.

                            ARTICLE VIII

                            MISCELLANEOUS

            SECTION 8.01.  Amendments, Etc.  No amendment or
  waiver of any provision of this Agreement or the Notes, nor
  consent to any departure by the Borrower therefrom, shall in any
  event be effective unless the same shall be in writing and
  signed by the Required Lenders, and then such waiver or consent
  shall be effective only in the specific instance and for the
  specific purpose for which given; provided, however, that (a) no
  amendment, waiver or consent shall, unless in writing and signed
  by each of the Lenders affected thereby (other than any Lender
  which is, at such time, a Defaulting Lender), do any of the
  following:  (i) waive any of the conditions specified in Section
  3.01 or, in the case of the initial Borrowing, 3.02, (ii) change
  the definition of the term "Required Lenders", (iii) release any
  material portion of the Collateral (other than the release of 
  any of the Escrowed Property (as defined in the Escrow
  Agreement) pursuant to the terms of the Escrow Agreement so long
  as no Event of Default has occurred or is continuing) or permit
  the creation, incurrence, assumption or existence of any Lien on
  any material portion of the Collateral other than the Liens
  created by the Collateral Documents and the Liens permitted by
  Section 5.02(a) or (iv) amend this Section 8.01 and (b) no
  amendment, waiver or consent shall, unless in writing and signed
  by the Required Lenders and each Lender that has a Commitment
  affected by such amendment, waiver or consent, (i) increase the
  Commitment of such Lender or subject such Lender to any
  additional obligations, (ii) reduce the principal of, or
  interest on, the Notes held by such Lender or any fees or other
  amounts payable hereunder to such












  <PAGE>113



  Lender or (iii) postpone any date fixed for any mandatory
  reduction in the Commitment of such Lender or for any payment of
  principal of, or interest on, the Notes held by such Lender or
  any fees or other amounts payable hereunder to such Lender or
  (iv) change the order of application of any prepayment set forth 
  in Section 2.05 in any manner that materially affects such
  Lender; provided further that no amendment, waiver or consent
  shall, unless in writing and signed by the Issuing Bank in
  addition to the Lenders required above to take such action,
  affect the rights or obligations of the Issuing Bank; and
  provided further that no amendment, waiver or consent shall,
  unless in writing and signed by the Administrative Agent in
  addition to the Lenders required above to take such action,
  affect the rights or duties of the Administrative Agent under
  this Agreement or any Note.

            SECTION 8.02.  Notices, Etc.  All notices and other
  communications provided for hereunder shall be in writing
  (including telecopier, telegraphic, telex or cable
  communication) and mailed, telecopied, telegraphed, telexed,
  cabled or delivered, if to the Borrower, at its address at 4225
  Executive Square, Suite 800, La Jolla, California 92037,
  Attention:  Vice President--Finance; if to any Bank at its 
  Domestic Lending Office on Schedule I hereto; if to any other
  Lender, at the address specified in the Assignment and
  Acceptance pursuant to which it became a Lender; and if to the
  Administrative Agent, at its address at 1 Court Square, Long
  Island City, New York, New York 10043, Attention:  Andrew
  Homolo, with a copy to Citibank, N.A., 399 Park Avenue, New
  York, New York 10043, Attention:  Steven Victorin; or, as to the
  Borrower or the Administrative Agent, at such other address as
  shall be designated by such party in a written notice to the
  other parties and, as to each other party, at such other address
  as shall be designated by such party in a written notice to the
  Borrower and the Administrative Agent.  All such notices and
  communications shall be effective (i) when received, if mailed
  or delivered or telecopied (including machine acknowledgment),
  or (ii) when delivered to the telegraph company, confirmed by
  telex answerback or delivered to the cable company,
  respectively, except that notices and communications to the
  Administrative Agent pursuant to Article II or VII shall not be 
  effective until received by the Administrative Agent.

            SECTION 8.03.  No Waiver; Remedies.  No failure on the
  part of any Lender, or the Administrative Agent to exercise, and
  no delay in exercising, any right hereunder or under any Note
  shall operate as a waiver thereof; nor shall any single or
  partial exercise of any such right preclude any other or further
  exercise thereof or the exercise of any other right.  The
  remedies herein provided are cumulative and not exclusive of any
  remedies provided by law.

            SECTION 8.04.  Costs; Expenses.  (a) The Borrower
  agrees to pay on demand all reasonable out-of-pocket costs and













  <PAGE>114



  expenses of the Administrative Agent in connection with the
  preparation, execution, delivery, administration, modification
  and amendment of the Loan Documents and the other documents to
  be delivered hereunder (including, without limitation, (A) all
  due diligence, transportation, computer, duplication, appraisal, 
  audit and insurance expenses and fees and expenses of
  consultants engaged with the prior consent of the Borrower
  (which consent shall not be unreasonably withheld) and (B) the
  reasonable fees and out-of-pocket expenses of counsel for the
  Administrative Agent with respect thereto, with respect to
  advising the Administrative Agent as to its rights and
  responsibilities, or the protection or preservation of rights or
  interests, under the Loan Documents, with respect to
  negotiations with the Borrower or with other creditors of the
  Borrower arising out of any Default or any events or
  circumstances that may give rise to a Default and with respect
  to presenting claims in, monitoring or otherwise participating
  in any bankruptcy, insolvency or other similar proceeding
  affecting creditors' rights generally and any proceeding
  ancillary thereto).  The Borrower further agrees to pay on
  demand all reasonable out-of-pocket costs and expenses of the
  Administrative Agent and the Lenders in connection with the
  enforcement of the Loan Documents and the other documents to be 
  delivered hereunder, whether in action, suit, litigation, any
  bankruptcy, insolvency or other similar proceeding affecting
  creditors' rights generally or otherwise (including, without
  limitation, the reasonable fees and reasonable expenses of
  counsel for the Administrative Agent and each Lender with
  respect thereto) and expenses in connection with the enforcement
  of rights under this Section 8.04(a).

            (b)  If any payment of principal of any Eurodollar
  Rate Advance is made by the Borrower to or for the account of a
  Lender other than on the last day of the Interest Period for
  such Advance, as a result of a payment or Conversion pursuant to
  Section 2.11 or 2.15, acceleration of the maturity of the Notes
  pursuant to Section 6.01 or for any other reason, the Borrower
  shall, upon demand by such Lender (with a copy of such demand to
  the Administrative Agent), pay to the Administrative Agent for
  the account of such Lender any amounts required to compensate
  such Lender for any additional losses, costs or expenses which 
  it may reasonably incur as a result of such payment, including,
  without limitation, any loss, cost or expense incurred by reason
  of the liquidation or reemployment of deposits or other funds
  acquired by any Lender to fund or maintain such Advance.

            (c)  The Borrower agrees to indemnify and hold
  harmless the Administrative Agent and each Lender and each of
  their affiliates and their officers, directors, employees,
  agents and advisors (each, an "Indemnified Party") from and
  against any and all claims, damages, losses, liabilities and
  expenses (including, without limitation, reasonable fees and
  expenses of counsel) that may be incurred by or asserted or
  awarded against any Indemnified Party, in each case arising out
  of or in connection with or by





 





  <PAGE>115



  reason of (or in connection with the preparation for a defense
  of) any investigation, litigation or proceeding arising out of,
  related to or in connection with this Agreement and the
  transactions contemplated hereby, whether or not an Indemnified
  Party is a party thereto, whether or not the transactions 
  contemplated hereby are consummated and whether or not any such
  claim, investigation, litigation or proceeding is brought by the
  Borrower or any other person, except (i) to the extent such
  claim, damage, loss, liability or expense (x) is found in a
  final, non-appealable judgment by a court of competent
  jurisdiction (a "Final Judgment") to have resulted from such
  Indemnified Party's gross negligence or willful misconduct or
  (y) arises from any legal proceedings commenced against any
  Lender by any other Lender (in its capacity as such and not as
  Administrative Agent), and (ii) in the case of any litigation
  brought by the Borrower (A) seeking a judgment against any
  Indemnified Party for any wrongful act or omission of such
  Indemnified Party and (B) in which a Final Judgment is rendered
  in the Borrower's favor against such Indemnified Party, the
  provisions of this paragraph will not be available to provide
  indemnification for any damage, loss, liability or expense
  incurred by such Indemnified Party in connection with such
  litigation described in clause (i) or (ii) of this Section
  8.04(c).

            SECTION 8.05.  Right of Set-off.  Upon (i) the
  occurrence and during the continuance of any Event of Default
  and (ii) the making of the request or the granting of the
  consent specified by Section 6.01 to authorize the
  Administrative Agent to declare the Notes due and payable
  pursuant to the provisions of Section 6.01, each Lender is
  hereby authorized at any time and from time to time, to the
  fullest extent permitted by law, to set off and apply any and
  all deposits (general or special, time or demand, provisional or
  final) at any time held and other indebtedness at any time owing
  by such Lender to or for the credit or the account of the
  Borrower against any and all of the obligations of the Borrower
  to such Lender now or hereafter existing under this Agreement
  and the Note or Notes held by such Lender, whether or not such
  Lender shall have made any demand under this Agreement or such
  Note or Notes and although such obligations may be unmatured. 
  Each Lender agrees promptly to notify the Borrower after any
  such set-off and application shall be made by such Lender,
  provided that the failure to give such notice shall not affect
  the validity of such set-off and application; provided further
  that no Lender shall exercise any such right of set-off or any
  other right of set-off without the prior consent of the
  Administrative Agent.  The rights of each Lender under this
  Section 8.05 are in addition to other rights and remedies
  (including, without limitation, other rights of set-off) which
  such Lender may have.

            SECTION 8.06.  Binding Effect.  This Agreement shall
  become effective when it shall have been executed by the
  Borrower 











  <PAGE>116



  and the Administrative Agent and when the Administrative Agent
  shall have been notified by each Bank that such Bank has
  executed it and thereafter shall be binding upon and inure to
  the benefit of the Borrower, the Administrative Agent and each
  Lender and their respective successors and assigns, except that 
  the Borrower shall not have the right to assign its rights
  hereunder or any interest herein without the prior written
  consent of the Administrative Agent and the Required Lenders.

            SECTION 8.07.  Assignments and Participations.   (a) 
  Each Lender may and, if demanded by the Borrower pursuant to
  Section 2.14, will assign to one or more banks or other entities
  all or a portion of its rights and obligations under this
  Agreement (including, without limitation, all or a portion of
  its Commitment, the Advances owing to it and the Note or Notes
  held by it); provided, however, that (i) each such assignment
  shall be of a uniform, and not a varying, percentage of all
  rights and obligations under and in respect of one or more
  Facilities (ii) the amount of the Commitment of the assigning
  Lender being assigned pursuant to each such assignment
  (determined as of the date of the Assignment and Acceptance with
  respect to such assignment) shall in no event be less than
  $10,000,000 and shall be an integral multiple of $1,000,000 in 
  excess thereof, or shall be an assignment to another Lender or
  an assignment of all of the assigning Lender's rights and
  obligations hereunder and under the Notes, (iii) each such
  assignment shall be to another Lender, an Affiliate of the
  assigning Lender or to an Eligible Assignee, (iv) each such
  assignment made as a result of a demand by the Borrower pursuant
  to Section 2.14 shall be arranged by the Borrower after
  consultation with the Administrative Agent and shall be either
  an assignment of all of the rights and obligations of the
  assigning Lender under this Agreement or an assignment of a
  portion of such rights and obligations made concurrently with
  another such assignment or other such assignments that together
  cover all of the rights and obligations of the assigning Lender
  under this Agreement, (v) no Lender shall be obligated to make
  any such assignment as a result of a demand by the Borrower
  pursuant to Section 2.14 unless and until such Lender shall have
  received one or more payments from either the Borrower or one or
  more Eligible Assignees in an aggregate amount at least equal to 
  the aggregate outstanding principal amount of the Advances owin
  to such Lender, together with accrued interest thereon to the
  date of payment of such principal amount and all other amounts
  payable to such Lender under this Agreement and (vi) the parties
  to each such assignment shall execute and deliver to the
  Administrative Agent, for its acceptance and recording in the
  Register, an Assignment and Acceptance, together with any Note
  or Notes subject to such assignment and a processing and
  recordation fee of $3,000 from the assignee.  Upon such
  execution, delivery, acceptance and recording, from and after
  the effective date specified in each Assignment and Acceptance,
  (x) the assignee thereunder shall be a party hereto and, to the
  extent that rights and obligations hereunder have













  <PAGE>117



  been assigned to it pursuant to such Assignment and Acceptance,
  have the rights and obligations of a Lender hereunder and (y)
  the Lender assignor thereunder shall, to the extent that rights
  and obligations hereunder have been assigned by it pursuant to
  such Assignment and Acceptance, relinquish its rights and be 
  released from its obligations under this Agreement (and, in the
  case of an Assignment and Acceptance covering all or the
  remaining portion of an assigning Lender's rights and
  obligations under this Agreement, such Lender shall cease to be
  a party hereto).

            (b)  By executing and delivering an Assignment and
  Acceptance, the Lender assignor thereunder and the assignee
  thereunder confirm to and agree with each other and the other
  parties hereto as follows:  (i) other than as provided in such
  Assignment and Acceptance, such assigning Lender makes no
  representation or warranty and assumes no responsibility with
  respect to any statements, warranties or representations made in
  or in connection with this Agreement or the execution, legality,
  validity, enforceability, genuineness, sufficiency or value of
  this Agreement or any other instrument or document furnished
  pursuant hereto; (ii) such assigning Lender makes no
  representation or warranty and assumes no responsibility with 
  respect to the financial condition of the Borrower or the
  performance or observance by the Borrower of any of its
  obligations under this Agreement or any other instrument or
  document furnished pursuant hereto; (iii) such assignee confirms
  that it has received a copy of this Agreement, together with
  copies of the financial statements referred to in Section
  4.01(f) and such other documents and information as it has
  deemed appropriate to make its own credit analysis and decision
  to enter into such Assignment and Acceptance; (iv) such assignee
  will, independently and without reliance upon the Administrative
  Agent, such assigning Lender or any other Lender and based on
  such documents and information as it shall deem appropriate at
  the time, continue to make its own credit decisions in taking or
  not taking action under this Agreement; (v) such assignee
  confirms that it is an Eligible Assignee; (vi) such assignee
  appoints and authorizes the Administrative Agent to take such
  action as agent on its behalf and to exercise such powers under
  this Agreement as are delegated to the Administrative Agent by 
  the terms hereof, together with such powers as are reasonably
  incidental thereto; and (vii) such assignee agrees that it will
  perform in accordance with their terms all of the obligations
  which by the terms of this Agreement are required to be
  performed by it as a Lender.

            (c)  The Administrative Agent shall maintain at its
  address referred to in Section 8.02 a copy of each Assignment
  and Acceptance delivered to and accepted by it and a register
  for the recordation of the names and addresses of the Lenders
  and the Commitment of, and principal amount of the Advances
  owing under each Facility to, each Lender from time to time (the
  "Register").  The entries in the Register shall be conclusive
  and binding for all purposes, absent manifest error, and the
  Borrower, the











  <PAGE>118



  Administrative Agent, and the Lenders may treat each Person
  whose name is recorded in the Register as a Lender hereunder for
  all purposes of this Agreement.  The Register shall be available
  for inspection by the Borrower or any Lender at any reasonable
  time and from time to time upon reasonable prior notice.
            (d)  Upon its receipt of an Assignment and Acceptance
  executed by an assigning Lender and an assignee representing
  that it is an Eligible Assignee, together with any Note or Notes
  subject to such assignment, the Administrative Agent shall, if
  such Assignment and Acceptance has been completed and is in
  substantially the form of Exhibit C hereto, (i) accept such
  Assignment and Acceptance, (ii) record the information contained
  therein in the Register and (iii) give prompt notice thereof to
  the Borrower.  Within five Business Days after its receipt of
  such notice, the Borrower, at its own expense, shall execute and
  deliver to the Administrative Agent in exchange for the
  surrendered Note or Notes a new Note or Notes to the order of
  such Eligible Assignee in an amount equal to the Commitment
  under each Facility assumed by it pursuant to such Assignment
  and Acceptance and, if the assigning Lender has retained a
  Commitment hereunder under such Facility, a new Note to the
  order of the assigning Lender in an amount equal to the 
  Commitment retained by it hereunder.  Such new Note or Notes
  shall be in an aggregate principal amount equal to the aggregate
  principal amount of such surrendered Note or Notes, shall be
  dated the effective date of such Assignment and Acceptance and
  shall otherwise be in substantially the form of Exhibit A-1,
  Exhibit A-2 or   Exhibit A-3, as the case may be.

            (e)  Each Lender may sell participations to one or
  more banks or other entities in or to all or a portion of its
  rights and obligations under this Agreement (including, without
  limitation, all or a portion of its Commitment, the Advances
  owing to it and the Note or Notes held by it); provided,
  however, that (i) such Lender's obligations under this Agreement
  (including. without limitation, its Commitment to the Borrower
  hereunder) shall remain unchanged, (ii) such Lender shall remain
  solely responsible to the other parties hereto for the
  performance of such obligations, (iii) such Lender shall remain
  the holder of any such Note for all purposes of this Agreement, 
  (iv) the Borrower, the Administrative Agent and the other
  Lenders shall continue to deal solely and directly with such
  Lender in connection with such Lender's rights and obligations
  under this Agreement and (v) no participant under any such
  participation shall have any right to approve any amendment or
  waiver of any provision of any Loan Document, or any consent to
  any departure by the Borrower therefrom, except to the extent
  that such amendment, waiver or consent would reduce or postpone
  any date fixed for payment of principal of, or interest on, the
  Notes or any fees or other amounts payable hereunder, in each
  case to the extent subject to such participation.















  <PAGE>119



            (f)  Any Lender may, in connection with any assignment
  or participation or proposed assignment or participation
  pursuant to this Section 8.07, disclose to the assignee or
  participant or proposed assignee or participant, any information
  relating to the Borrower furnished to such Lender by or on 
  behalf of the Borrower; provided that, prior to any such
  disclosure, the assignee or participant or proposed assignee or
  participant shall agree pursuant to an agreement substantially
  in the form of Exhibit N to preserve the confidentiality of any
  confidential information relating to the Borrower received by it
  from such Lender.

            (g)  Notwithstanding any other provision set forth in
  this Agreement, any Lender may at any time create a security
  interest in all or any portion of its rights under this
  Agreement (including, without limitation, the Advances owing to
  it and the Note or Notes held by it) in favor of any Federal
  Reserve Bank in accordance with Regulation A of the Board of
  Governors of the Federal Reserve System.

            SECTION 8.08.  Governing Law; Submission to
  Jurisdiction.  (a)  This Agreement and the Notes shall be
  governed by, and construed in accordance with, the laws of the 
  State of New York.

            (b)  The Borrower hereby irrevocably and
  unconditionally submits, for itself and its property, to the
  nonexclusive jurisdiction of any New York State court or Federal
  court of the United States of America sitting in New York City,
  and any appellate court thereof, in any action or proceeding
  arising out of or relating to this Agreement, or for recognition
  or enforcement of any judgment, and each of the parties hereto
  hereby irrevocably and unconditionally agrees that all claims in
  respect of any such action or proceeding may be heard and
  determined in such New York State or, to the extent permitted by
  law, in such Federal court.  Each of the parties hereto agrees
  that a final judgment in any such action or proceeding shall be
  conclusive and may be enforced in other jurisdictions by suit on
  the judgment or in any other manner provided by law.  Subject to
  the foregoing and to paragraph (c) below, nothing in this
  Agreement shall affect any right that any party hereto may 
  otherwise have to bring any action or proceeding relating to
  this Agreement against any other party hereto in the courts of
  any jurisdiction.

            (c)  The Borrower hereby irrevocably and
  unconditionally waives, to the fullest extent it may legally and
  effectively do so, any objection which it may now or hereafter
  have to the laying of venue of any suit, action or proceeding
  arising out of or relating to this Agreement in any New York
  State or Federal court and the defense of an inconvenient forum
  to the maintenance of such action or proceeding in any such
  court.














  <PAGE>120



            (d)  The Borrower agrees that service of process may
  be made on the Borrower by personal service of a copy of the
  summons and complaint or other legal process in any such suit,
  action or proceeding, or by registered or certified mail
  (postage prepaid) to the address of the Borrower specified in 
  Section 8.02, or by any other method of service provided for
  under the applicable laws in effect in the State of New York.

            SECTION 8.09.  No Liability of the Issuing Bank.  The
  Borrower assumes all risks of the acts or omissions of any
  beneficiary or transferee of any Letter of Credit with respect
  to its use of such Letter of Credit.  Neither the Issuing Bank
  nor any of its officers or directors shall be liable or
  responsible for:  (a) the use that may be made of any Letter of
  Credit or any acts or omissions of any beneficiary or transferee
  in connection therewith; (b) the validity, sufficiency or
  genuineness of documents, or of any endorsement thereon, even if
  such documents should prove to be in any or all respects
  invalid, insufficient, fraudulent or forged; (c) payment by the
  Issuing Bank against presentation of documents that do not
  comply with the terms of a Letter of Credit, including failure
  of any documents to bear any reference or adequate reference to
  the Letter of Credit; or (d) any other circumstances whatsoever 
  in making or failing to make payment under any Letter of Credit,
  except that the Borrower shall have a claim against the Issuing
  Bank, and the Issuing Bank shall be liable to the Borrower, to
  the extent of any direct, but not consequential, damages
  suffered by the Borrower that the Borrower proves were caused by
  (i) the Issuing Bank's willful misconduct or gross negligence in
  determining whether documents presented under any Letter of
  Credit comply with the terms of the Letter of Credit or (ii) the
  Issuing Bank's willful failure to make lawful payment under a
  Letter of Credit after the presentation to it of a draft and
  certificates strictly complying with the terms and conditions of
  the Letter of Credit.  In furtherance and not in limitation of
  the foregoing, the Issuing Bank may accept documents that appear
  on their face to be in order, without responsibility for further
  investigation, regardless of any notice or information to the
  contrary.

            SECTION 8.10.  Execution in Counterparts.  This 
  Agreement may be executed in any number of counterparts and by
  different parties hereto in separate counterparts, each of which
  when so executed shall be deemed to be an original and all of
  which taken together shall constitute one and the same
  agreement.  Delivery of an executed counterpart of a signature
  page to this Agreement by telecopier shall be effective as
  delivery of a manually executed counterpart of this Agreement.

            SECTION 8.11.  WAIVER OF JURY TRIAL.  EACH OF THE
  BORROWER, THE ADMINISTRATIVE AGENT AND THE LENDERS IRREVOCABLY
  WAIVES ALL RIGHT TO TRIAL BY JURY IN ANY ACTION, PROCEEDING OR
  COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE)
  ARISING OUT OF OR RELATING TO ANY OF THE LOAN DOCUMENTS, THE













  <PAGE>121



  ADVANCES OR THE ACTIONS OF THE ADMINISTRATIVE AGENT, OR ANY
  LENDER IN THE NEGOTIATION, ADMINISTRATION, PERFORMANCE OR
  ENFORCEMENT THEREOF.

            IN WITNESS WHEREOF, the parties hereto have caused 
  this Agreement to be executed by their respective officers
  thereunto duly authorized, as of the date first above written. 

























































  <PAGE>122



                                NHL INTERMEDIATE HOLDINGS CORP. II


                                By 
                                  -------------------------------  
                                  Name:
                                  Title:


                                CITICORP USA, INC., 
                                  as Administrative Agent


                                By 
                                  -------------------------------
                                  Name:
                                  Title:


                                THE LONG-TERM CREDIT BANK OF
                                  JAPAN, LTD., LOS ANGELES AGENCY, 
                                  as Co-Agent
   

                                By 
                                  -------------------------------
                                  Name:
                                  Title:


                                NATIONSBANK OF NORTH CAROLINA,     
                                  N.A., as Co-Agent
   

                                By 
                                  -------------------------------
                                  Name:
                                  Title: 

  <PAGE>123




                                TORONTO DOMINION (TEXAS), INC.,
                                  as Co-Agent
   
                                By
                                  -------------------------------
                                  Name:
                                  Title:


                                Banks

                                CITICORP USA, INC.

                                By 
                                  -------------------------------
                                  Name:
                                  Title:

                                THE LONG-TERM CREDIT BANK OF
                                   JAPAN, LTD., LOS ANGELES AGENCY
   

                                By
                                  -------------------------------
                                  Name:
                                  Title:



                                NATIONSBANK OF NORTH CAROLINA, N.A.
   

                                By 
                                  -------------------------------
                                  Name:
                                  Title: 


  <PAGE>124




                                TORONTO DOMINION (TEXAS), INC.
   

                                By
                                  -------------------------------
                                  Name:
                                  Title:



                                BANQUE PARIBAS
   

                                By 
                                  -------------------------------
                                  Name:
                                  Title:


                                By 
                                  -------------------------------
                                  Name:
                                  Title:



                                CONTINENTAL BANK N.A.
   

                                By 
                                  -------------------------------
                                  Name:
                                  Title:



                                NATIONAL WESTMINSTER BANK USA    

                                By 
                                  -------------------------------
                                  Name:
                                  Title:



                                SHAWMUT BANK,  N.A.
   

                                By
                                  ------------------------------- 
                                  Name:
                                  Title:




  <PAGE>125



                                THE FIRST NATIONAL BANK OF BOSTON
   

                                By
                                  -------------------------------
                                  Name:
                                  Title:



                                THE SANWA BANK, LIMITED, LOS
                                ANGELES BRANCH
   

                                By
                                   ------------------------------
                                   Name:
                                   Title:


                                Issuing Bank

                                CITIBANK, N.A.


                                By
                                   -----------------------------
                                   Name:
                                   Title: 


  <PAGE>126




                                THE FUJI BANK, LIMITED


                                By
                                  ------------------------------
                                  Name:
                                  Title:


                                NHL INTERMEDIATE HOLDINGS CORP. II


                                By /s/ James G. Richmond
                                  -------------------------------
                                  Title: Secretary


                                CITICORP USA, INC., 
                                  as Administrative Agent


                                By /s/ Townsend L. Weekes Jr.
                                  -------------------------------
                                  Title: Authorized Representative


                                THE LONG-TERM CREDIT BANK OF JAPAN,
                                  LTD., LOS ANGELES AGENCY, 
                                  as Co-Agent
   

                                By /s/ Motokazi Uematsu
                                  -------------------------------
                                  Title: Deputy General Manager

                                NATIONSBANK OF NORTH CAROLINA,     
                                  N.A., as Co-Agent
   

                                By /s/ Mark E. Stephanz
                                  -------------------------------
                                  Title: Senior Vice President 


  <PAGE>127




                                TORONTO DOMINION (TEXAS), INC.,
                                  as Co-Agent
   
                                By /s/ Warren Finlay
                                  -------------------------------
                                  Title: Vice President


                                Banks

                                CITICORP USA, INC.

                                By /s/ Townsend L. Weekes
                                  -------------------------------
                                   Title: Authorized Representative


                                THE LONG-TERM CREDIT BANK OF
                                  JAPAN, LTD., LOS ANGELES AGENCY
   

                                By /s/ Motokazu Uematsu
                                  -------------------------------
                                  Title: Deputy General Manager



                                NATIONSBANK OF NORTH CAROLINA, N.A.
   

                                By /s/ Mark E. Stephanz
                                  -------------------------------
                                  Title: Senior Vice President 



  <PAGE>128




                                TORONTO DOMINION (TEXAS), INC.
   

                                By /s/ Carole A. Clause
                                  -------------------------------
                                  Title: Vice President



                                BANQUE PARIBAS
   

                                By /s/ Eric Green 
                                  -------------------------------
                                  Title: Vice President


                                By /s/                   
                                  -------------------------------
                                  Name:
                                  Title:



                                CONTINENTAL BANK N.A.
   

                                By /s/ John Orecchio
                                  -------------------------------
                                  Title: Vice President



                                NATIONAL WESTMINSTER BANK USA
   

                                By /s/ Dilcia P. Hill
                                  -------------------------------
                                  Title: Assistant Vice President



                                By /s/ W. Wakefield Smith
                                  -------------------------------
                                  Title: Vice President


                                SHAWMUT BANK,  N.A.
   

                                By /s/ Amy M. Tsokanis 
                                  ----------------------------
                                  Title: Vice President 











































  <PAGE>129



                                THE FIRST NATIONAL BANK OF BOSTON
   

                                By /s/ Richard D. Hill, Jr.
                                  -------------------------------
                                  Title: Vice President



                                THE SANWA BANK, LIMITED, LOS
                                  ANGELES BRANCH
   

                                By /s/ John Merhaut
                                  -------------------------------
                                  Title: First Vice President &
                                         Manager



                                Issuing Bank
                                CITIBANK, N.A.


                                By /s/ Townsend L. Weekes Jr.
                                  -------------------------------
                                  Title: Authorized Representative 


  <PAGE>130




                                THE FUJI BANK, LIMITED


                                By /s/ Katsunori Nozawa 
                                  -------------------------------
                                  Title: Vice President & Manager 




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