HMWW/Wiley-GDCh-DPhG-VCH/Purchase and Assignment
             Agreement/endg./ST005421/May 6, 1996
                               
                               
               Purchase and Assignment Agreement

among

1.  Gesellschaft Deutscher Chemiker e.V.
    Varrentrappstrasse 40
    D-60486 Frankfurt am Main
    Federal Republic of Germany

              - hereinafter referred to as "GDCh" -
              
2.  Deutsche Pharmazeutische Gesellschaft e.V., registered
    in Berlin, c/o Prof. Dr. H.P.T. Ammon, Im Kleeacker 30,
    72072 Tubingen
              
              - hereinafter referred to as "DPhG" -
              - GDCh and DPhG hereinafter collectively
                referred to as the "Sellers" -
                             
on the one side

and
    
3.  John Wiley & Sons, Inc.
    605 Third Avenue
    New York, N.Y. 10158-0012, USA
    
    an American stock corporation organized and existing
    under the laws of the State of New York,

         - hereinafter referred to as "Buyer" or "Wiley" -

on the other side

                         Introduction

(1) Sellers own the following shares in VCH Verlagsgesell
    schaft mbH, Weinheim, Germany, registered in the
    Commercial Register at the Lower Court Mannheim under
    HRB 508W with a stated capital in the nominal amount of
    DM 4.687.500,-- (hereinafter: "Company"):

    (a) GDCh owns one share in the nominal amount of
         DM 1,687,500 (representing 36 % of the share
         capital). The share is fully paid in.
    
    (b) DPhG owns
         
         one share in the nominal amount of DM   137,500
         one share in the nominal amount of DM    50,000
         
                                            DM   187,500
    
         representing 4 % of the share capital.
         
         The shares are fully paid in.
         
(2) The balance of the share capital of VCH is held as follows:

    VCH Publishing Limited Partnership,
    c/o United Corporate Services Inc.,
    15 East North Street,
    Dover, Delaware 19901, USA
    
    an American limited partnership organized and existing
    under the laws of the State of Delaware, USA
                               
    (hereinafter referred to as "Pallas")
         
    owns
         
         one share in the nominal amount of DM   562,500
         one share in the nominal amount of DM   150,000
         one share in the nominal amount of DM    62,500
         one share in the nominal amount of DM 2,037,500
         
                                            DM 2,812,500
         
         _ hereinafter referred to as the "Pallas Shares" -
         
         
(3) The Company holds shares in various subsidiaries as
    listed in Exhibit  1(3) hereto (the Company and its
    subsidiaries shall hereinafter be referred to as the "VCH
    Group", as set out in Exhibit  1(3)).
    
 
                       Sale and Transfer
                               
(1) GDCh hereby sells and transfers to Wiley out of its 36 %
    participation in VCH, a partial share corresponding to
    approx. 27 % of the share capital of VCH. For this
    purpose GDCh hereby splits its share in VCH in the
    nominal amount of DM 1,687,500 in two partial shares in
    the nominal amount of DM 1,265,600 and DM 421,900, and
    sells and transfers to Wiley the partial share in the
    nominal value of DM 1,265,600 (such share being referred
    to hereinafter as the "GDCh Share"). Wiley hereby
    purchases the GDCh Share and accepts the transfer.

(2) DPhG hereby sells and transfers to Wiley out of its 4 %
    participation in VCH a partial share corresponding to
    approx. 3 % of the share capital of VCH. For this purpose
    DPhG hereby splits its fully paid in share in VCH in the
    nominal amount of DM 50,000 in two partial shares in the
    nominal amount of DM 3,100 and DM 46,900, and sells and
    transfers to Wiley the partial share in the nominal
    amount of DM 3,100 and its fully paid in share in VCH in
    the nominal amount of DM 137,500 (such shares being
    referred to hereinafter as the "DPhG Shares"). Wiley
    hereby purchases the DPhG Shares and accepts the
    transfer.

(3) The transfer of the GDCh Share and of the DPhG Shares
    shall be subject to the conditions precedent
    (aufschiebende Bedingungen) of

  (i)    clearance by the German Federal Cartel Office as set
         forth in Section 7 which shall be notified by either
         of the parties to the acting notary by submission of
         a photocopy of the clearance letter, or by
         submitting adequate evidence for the expiration of
         the periods during which a prohibition order could
         be issued, and
    
  (ii)   payment of the purchase price pursuant to Section 3
         (2) and (3) less any deduction on account of the
         Purchase Price reduction pursuant to Section 3 (5)
         (b) which was notified in writing to the acting
         notary as provided in Section 3 (5) (b), and
    
  (iii)  the Buyer having entered into an agreement for the
         acquisition of the Pallas Shares, as set forth in
         para. (4) of this  2; and all conditions precedent
         for the sale and transfer of the Pallas Shares
         having occurred, except for the condition precedent
         of the acquisition of the GDCh and DPhG Shares, and

    

  (iv)   the Buyer having received satisfactory evidence of
         the authority to act of the persons acting for GDCh
         and DPhG. A written confirmation by the Buyer to the
         acting notary that it has received such satisfactory
         evidence, or a certified excerpt from the
         Vereinsregister together with a certified copy of
         the Statutes, evidencing the authority of the
         persons signing this Agreement on behalf of GDCh and
         DPhG shall constitute full proof of the occurrence
         of this condition precedent.
    
         GDCh and DPhG undertake to procure such evidence as
         soon as possible.
    
         Buyer shall be entitled to waive the conditions precedent
         pursuant to (iii) and (iv) by written statement to the
         acting notary.

(4) By separate agreement, Wiley will acquire from Pallas all
    of its shares in VCH.

(5) As soon as all conditions precedent for the sale and
    transfer of the GDCh Shares and DPhG Shares have
    occurred, Sellers and Buyer shall submit a joint
    statement to this effect to the acting notary, which
    statement shall be kept with the notary's files and shall
    constitute full proof of such occurrence (except for
    clearance by the Federal Cartel Office, which shall be
    evidenced by a photocopy of the clearance letter from the
    Federal Cartel Office or adequate evidence for the
    expiration of the periods during which a prohibition
    order could be issued).  The possibility to prove the
    occurrence of any of the conditions precedent through
    other means shall remain unaffected.

(6) As a result of the acquisition of the GDCh Shares, DPhG
    Shares and Pallas Shares by Wiley, the share capital of
    VCH of DM 4,687,500 will be held as follows:
    
    Wiley GmbH will hold shares in the nominal amount of
    
                                  DM   562,500
                                  DM   150,000
                                  DM    62,500
                                  DM 2,037,500
                                  DM 1,265,600
                                  DM   137,500
                                  DM     3,100
                                  
                                  DM 4,218,700  (89.99 %)
    
    GDCh will hold one share
    in the nominal amount of      DM   421,900  (9.0005 %)
                                       


    DPhG will hold one share
    in the nominal amount of      DM    46,900  (1.0005 %)
    
    total share capital:          DM 4.687,500

(7) The sale and transfer of the GDCh and DPhG Shares shall
    include all rights to profits for the fiscal year
    commencing on January 1, 1996 and all retained profits of
    earlier years, if any.

(8) GDCh and DPhG hereby waive their right of preemption
    pursuant to the Articles of Association of the Company in
    relation to the acquisition by Buyer of shares in the
    Company from Pallas, as set forth in the paragraph (4) of
    this  2.

             Purchase Price/Payment/Escrow Account
                               
(1) The aggregate purchase price payable to the Sellers for
    the GDCh Shares and the DPhG Shares (including the right
    granted to Buyer under the covenant not to compete in
    Section 11 hereof) shall be DM 45,700,000 (in words
    Deutsche Mark forty-five million seven hundred thousand)
    subject to adjustment pursuant to para. (5) below
    (hereinafter: "Purchase Price"). The Sellers shall be
    responsible for dividing this amount between themselves.
    Should for any reason Buyer have to make a payment only
    to one of the Sellers, Buyer shall be entitled to proceed
    on the assumption that the division shall be
    proportionate to the shareholdings sold by GDCh and DPhG.

(2) DM 11,425,000 (in words: Deutsche Mark eleven million
    four hundred twenty-five thousand) of the Purchase Price
    (less the amount of any Purchase Price reduction under
    para. (5) (b)) shall be transferred within five banking
    days of the occurrence of the condition precedent
    pursuant to Section 2 (3) (iii) (except for Federal
    Cartel Office clearance and except for any condition
    precedent for the sale and transfer of the Pallas Shares
    relating to payments to be made by Buyer to Pallas) and
    Section 2 (3) (iv) into the escrow account referred to in
    para. (6) below (hereinafter: "Escrow Account") and shall
    be released therefrom as provided hereinafter.



(3) (a) DM 34,122,500 (in words: Deutsche Mark thirty-four
    million one hundred twenty-two thousand five hundred)
    of the Purchase Price (being the amount set forth in
    para. (1) minus the amount paid into the Escrow Account
    pursuant to para. (2) minus the amount set forth in
    para. (5) (a)), less the amount of any Purchase Price
    reduction under para. (5) (b) not yet deducted from
    the payment pursuant to para.  (2), shall be payable
    to the Sellers within five  banking days of the
    occurrence of the latest of the  conditions precedent of
    2 (3)(i), (iii) and (iv)   (the date of such occurrence
    hereinafter: "Closing Date").
    
    Payments shall be made into the following bank
    account of Sellers:
    
        Bank:            Dresdner Bank AG Frankfurt am Main
        Account no.:     4900200
        Bank code:       500 800 00
    
        GDCh and DPhG confirm that Buyer is entitled to
    make payment into this bank account for both of the
    Sellers.
    
    (b) Now payment shall be due under  2 and  3 (a)
    prior to Buyer having received satisfactory evidence for
    the company having approved of the     splitting of
    Shares contemplated in 2 (1) and  2 (2).
    
(4) The Purchase Price shall be subject to interest as
    follows:

    (a)  Any interest on the amount of DM 11,425,000 to be
         paid into the Escrow Account shall be for the
         account of the Buyer up to and including the day
         falling five banking days after the Closing Date,
         and shall be released to Buyer as provided in para.
         (8) (b).
    
    (b)  As from the day falling five banking days after the
         Closing Date the Sellers shall be entitled to
         interest at the German Federal Bank discount rate
         plus 2 % p.a. on the amount standing to the credit
         of the Escrow Account from that day on. Should the
         accrued interest on the amount standing to the
         credit of the Escrow Account exceed the interest
         which would have accrued on the basis of the above
         interest rate, the excess shall be released to
         Buyer. Should the accrued interest on the amount
         standing to the credit of the Escrow Account fall
         short of the interest which would have accrued on
         the basis of the above interest rate, the amount of
         the shortfall shall be paid by Buyer to Sellers.


    
    (c)  In case of late payment (Zahlungsverzug), Buyer
         shall pay interest at an increased rate, namely the
         German Federal Bank discount rate plus 3 % p.a.

(5) The Purchase Price shall be reduced as follows:

    (a)  The Purchase Price shall be reduced by DM 152,500
         (Deutsche Mark one hundred fifty-two thousand five
         hundred) on account of any tax liabilities. This
         amount has already been taken into consideration as
         a deduction in the calculation of the amount payable
         under para. (3) above. Buyer shall not have any
         further claims, with respect to any taxes payable by
         the Company for any period.

     (b) The Purchase Price shall be further reduced by
         30.5 % of any amount by which the sum of

         -   bank debt and
         
         -   shareholder loans and
         
         -   factored receivables as yet unpaid by the debtors
         
         of the Company, in all cases as of April 30, 1996,
         exceeds DM 15,000,000 (Deutsche Mark fifteen
         million). The amount of the excess shall be
         
        (i)   determined by Arthur Andersen & Co. GmbH
              Wirtschaftsprufungsgesellschaft, Stuttgart,
              acting as arbiter (Schiedsgutachter) for both
              parties (the parties to use best efforts to
              arrange that such determination is made within
              five working days of the date hereof), and
         
       (ii)   notified to the acting notary by either of both
              parties, and
         
      (iii)   deducted from the Purchase Price payments as
              provided in paras. (2) and (3) or shall
              otherwise be released from the Escrow Account
              as provided in para (9) (b).


(6) The Escrow Account shall be a notarial trust account
    (Notaranderkonto) opened by the acting notary
    (hereinafter: "Escrow Agent"). The Escrow Account will be
    operated in accordance with the provisions of the
    following paragraphs.

(7) The deposit shall be held by the Escrow Agent in an
    interest bearing account with all interest earned thereon
    to be treated as part of the deposit.



(8) On the day falling 5 banking days after the Closing Date:

    (a)  the Escrow Agent shall release DM 9,140,000
         (Deutsche Mark nine million one hundred forty
         thousand), less any deduction made pursuant to para.
         (2) on account of Purchase Price reduction under
         para. (5) (b), from the Escrow Account to Sellers
         and shall pay such amount to the Sellers' bank
         account shown in para. (3) above;
    
    (b)  the Escrow Agent shall release the amount of accrued
         interest to Buyer and shall pay such amount to a
         bank account notified by Buyer to the Escrow Agent.

(9) The remaining amount of DM 2,285,000 (Deutsche Mark two
    million two hundred eighty-five thousand) shall be
    administered as follows:

    (a)  Sellers shall be entitled to require Buyer to
         declare a release of money standing to the credit of
         the Escrow Account at any time after September 30,
         1997, in the amount of the balance standing to the
         credit of the Escrow Account at that time, less the
         amount of any claim of Buyer against Sellers under
         this Agreement (including, without limitation,
         claims based on deliberate misconduct relating to
         this Agreement but excluding claims based on the
         agreements contained in Exhibits  14, $ 15 (1) to
         (3) and  16) still existing and notified by Buyer
         to Sellers in writing with specifation as to the
         basis of the claim, without the statute of
         limitation having expired at that time, or at any
         time thereafter.

    (b)  Buyer shall be entitled to require Sellers to
         declare a release of money standing to the credit of
         the Escrow Account

        (i)   if Arthur Andersen GmbH & Co. has determined
              pursuant to para. (5) (b) that the sum of bank
              debt, shareholder loans and factored
              receivables of the Company as of April 30, 1996
              exceeds DM 15,000,000, in the amount of 30.5 %
              of the excess (except if such excess has
              already been deducted pursuant to para. (2) or
              (3) above);
         
        (ii)  if Buyer has any other claims against Sellers
              under this Agreement (including, without
              limitation, claims based on deliberate
              misconduct relating to this Agreement but
              excluding claims based on the agreements
              contained in Exhibits  14,  15 (1) to (3) and
              16) still existing and notified by Buyer to
              Sellers in writing with specification as to the
              basis of the claim, without the statute of
              limitation having expired at that time or any
              time thereafter, in the amount of such claims.

    
    (c) Should the Federal Cartel Office prohibit the
         transaction, the Escrow Agent, against adequate
         proof of the prohibition order, shall promptly pay
         all sums standing to the credit of the Escrow
         Account to Buyer, except if the parties jointly
         appeal against such order as provided in  7 (3).
    
(10) Except as provided in para. (8) and para. (9) (c)
     the Escrow Agent shall only be entitled to release money
     from the Escrow Account if

    (i)  he has received written confirmation from Buyer and
         Sellers that a certain amount is to be released, or

    (ii) he has received a copy (Ausfertigung) of a final
         court decision requiring Buyer or Sellers, as the
         case may be, to release money from the Escrow
         Account.

(11) When releasing money, the acting notary shall be entitled
     to deduct his fees from the amount standing to the credit
     of the Escrow Account from time to time, but not from the
     amount released.

(12) In case of late payment (Zahlungsverzug) of Buyer of more
     than 3 weeks with the amounts payable under para. (2) or
     (3), Sellers shall be entitled to rescind this Agreement
     subject to

    (i)  instructing the Escrow Agent to release all moneys
         which may stand to the credit of the Escrow Account
         at that time to Buyer, less a fixed sum of DM
         200,000 for contract costs to be paid to Sellers,
         and
    
   (ii)  having given Buyer after expiry of the 3 weeks
         adequate written notice of its intention to rescind,
         and giving Buyer a grace period of not less than 5
         banking days.

                    Title to Pallas Shares
                               
(1) In view of Pallas having become a shareholder in 1991 as
    a result fo acquiring shares from GDCh and DPhG and as a
    matter of utmost precaution, GDCh and DPhG waive any
    right which they might have to challenge the validity of
    such sale and transfer, whether for reason of an alleged
    lack of the authority to act or for any other reason.

(2) Sellers undertake to take, upon Buyer's request and at
    Buyer's cost, all steps which are useful in order to
    secure Buyer's title to the Pallas Shares and GDCh Share
    and DPhG Shares. Should Buyer for this purpose require
    Sellers to transfer shares in the Company, any and all
    liability of Sellers shall be excluded, including without
    limitation under  434 German Civil Code.


                     Warranties; Remedies
                               
(1) Sellers hereby warrant (section 459 para. 2 German Civil
    Code) and guarantee (section 305 German Civil Code) as of
    the date hereof, as follows:

    (a) Sellers have all necessary authority, and have taken
         all steps prescribed by applicable law or their
         constitutional documents or otherwise, to enter into
         this transaction, and have validly authorised the
         persons acting in their names in the context of this
         Agreement.



    (b)  The stated capital of the Company in the nominal
         amount of DM 4,687,500.-- is fully paid in;
         contributions in kind have been valued at not more
         than market value; no part of the stated capital has
         been paid back to any of the shareholders presently
         holding the GDCh Share and DPhG Shares or those
         shareholders having held the GDCh Share or DPhG
         Shares in the past; the GDCh Share and DPhG Shares
         represent roughly 30 % of the stated capital of the
         Company.

    (c)  Each of the Sellers owns the shares sold and
         transferred by it hereunder, and the Company owns
         the shares in the Subsidiaries as shown in Exhibit
         1(3); each of the Sellers has the unencumbered right
         to transfer to the Buyer title to the shares sold by
         it hereunder; there are no liens, encumbrances or
         claims of any kind or nature on or against the
         shares sold and transferred hereunder or the shares
         in any other company of VCH Group; all issued shares
         of the Company have been duly and validly issued.
         The provisions of parts C and D referred to in  13
         para. 2 of the Articles of Association of the
         Company have become obsolete, and none of the
         shareholders of the Company is bound by these
         provisions any longer.

    (d)  The Company is a corporation duly organised and
         validly existing under the laws of the Federal
         Republic of Germany and has the power to own its
         properties and to carry on its business as it is now
         being conducted; there are no joint ventures, silent
         partnerships or sub-participations or similar
         arrangements, except as shown in Exhibit  5(1)(d).

    (e)  Sellers have provided Buyer with the consolidated
         audited financial statements of VCH Group, signed by
         the auditors, for the fiscal years 1993, 1994 and
         1995 (the "Financial Statements");
    
         the Financial Statements 1995 present a true and
         fair view of the net worth, financial position and
         results of the Group;
    
         The Financial Statements 1995 have been prepared in
         compliance with German generally accepted accounting
         principles, consistently applied, without changing
         the valuation principles, unless shown in the notes.
    
         To the best of the Sellers' knowlege all pension
         liabilities are reflected as a provision with the
         maximum possible amount under section 6a Income Tax
         Act.

    (f)  All tangible fixed assets (Sachanlagen) and tangible
         current assets (Vorrate) of the Company are in a
         good condition, normal wear and tear excepted;
         except for retentions of title arising in the
         ordinary course of business and statutory pledges,
         the companies belonging to VCH Group have good title
         to all assets reflected in the Financial Statements
         1995 or not reflected only for reason of their low
         value ("geringwertige Wirtschaftsguter") (except as
         disposed in the ordinary course of business since
         January 1, 1996); the assets and inventories of the
         Company are not encumbered with rights of third
         parties, unless shown in the Financial Statements,
         and except collateral for bank loans entered into in
         the normal course of business.
    
    (g)  Neither the Company nor any other company belonging
         to VCH Group has granted a guarantee, suretyship
         (Burgschaft) or other indebtedness for third
         parties' liabilities, except in favour of other
         companies of VCH Group in which VCH holds at least
         60 % of the shares, and except as reflected in the
         1995 Financial Statements, and except for a
         declaration of subordination made by the company in
         relation to its claims against Verlagsservice
         Sudwest GmbH, Waghausel.
    
    (h)  To the best of the Sellers' knowledge:
    
         (i)  VCH Group does not infringe the intellectual
              property rights of third parties; however,
              Sellers declare that companies belonging to VCH
              Group may in some cases, which are not material
              in the aggregate, infringe copyrights of their
              authors by electronic media use of works, and
         
        (ii)  third parties do not infringe the intellectual
              property rights owned by VCH Group except for
              isolated and immaterial infringements in
              certain parts of the world not including the
              U.S.A. and Europe, and
         
       (iii)  the companies of VCH Group are not involved in
              lawsuits with a value ("Streitwert") in each
              case of more than DM 50,000, or relating in
              each case to assets with a value of more than
              DM 50,000.

    (i) To the best of Sellers' knowledge, since
         December 31, 1995 the Company has continued to
         operate its business in the ordinary course, and no
         material adverse change has occurred.

    

    (j) All of the material agreements of the Company listed
         in Exhibit  5(1)(j) are validly existing; none of
         such agreements has been terminated, amended or has
         expired without having been renewed on equally
         favourable terms; the management of the Company is
         not aware of the intention of the respective other
         parties to such agreements to terminate or not to
         renew these agreements on or following April 30,
         1996 or in connection with the execution of this
         Agreement, except as disclosed in Exhibit  5(1)(j).

    (k)  Exhibit  5(1)(k) contains a correct general
         description of the situation as to unpublished books
         of VCH Group, and a complete list of all journals
         published but not owned by VCH Group, and a complete
         list of all journals published by VCH Group where
         the ownership situation is in dispute.
    
    (l)  Buyer has been given access to certain information
         material, the table of contents of which is attached
         as Exhibit  5(1)(l). This material was up-to-date
         and not misleading in any material respect.
    
    (m)  Pallas became a shareholder of the Company in 1991
         by way of acquisition of shares from GDCh and DPhG.
         In the context of the 1991 transaction, no warranty
         claims were raised by either party against the
         other.
    
    (n)  On the basis of German generally accepted accounting
         principles consistently applied, the losses of VCH
         Group in the first four months of 1996 do not exceed
         the losses in the first half year of 1995.

(2) To the extent that the representations and warranties
    refer to the Sellers' best knowledge, the knowledge of
    the following persons shall be attributed to the
    respective Seller:

    (a) The managing director (Geschaftsfuhrer) of GDCh;
    
    (b) the members of the Prasidium (being the Vorstand
         within the meaning of Section 26 German Civil Code)
         of GDCh;
    
    (c) the members of the Vorstand (within the meaning of
         Section 26 German Civil Code) of DPhG;
    
    (d) The members of the Economic Board (Wirtschafts
         beirat) of the Company to the extent they have been
         appointed by Sellers or any of them.


(3) In the event that any representation or warranty
    hereunder should turn out to be incorrect in whole or in
    part, the Sellers shall pay damages to the Buyer in order
    to put it in the position as if the representation or
    warranty had been correct, provided that


    (i)  if the damage relates directly to the GDCh Share or
         DPhG Shares (e.g., defect of title), each of the
         Sellers shall pay to Buyer the full amount of such
         damage relating to the shares sold by it hereunder,
         alternatively
    
    (ii) if the damage relates to the Company or any other
         company of VCH Group, Sellers shall pay to Buyer
         18 % of such damage.

(4) The Buyer shall be estopped from making any claim for
    breach of any representation or warranty hereunder to the
    extent that such claim is based on circumstances which
    are properly disclosed in this Agreement including its
    Exhibits.

(5) Buyer is only entitled to assert claims under this
    Section 5 if the amounts of such claims against Sellers
    exceed in the aggregate DM 100,000 and then only for the
    amount exceeding DM 100,000.

(6) All claims for breach of a representation (guarantee as
    set forth in para. (1)) or warranty hereunder shall be
    limited in the aggregate to an amount of DM 2,285,000
    (Deutsche Mark two million two hundred eighty-five
    thousand). Buyer shall not have any claims with respect
    to any taxes payable by the Company for any period except
    as set forth in Section 3 (5) (a).

(7) The aforementioned provisions represent the full and
    entire agreement of the parties with regard to any
    representations and warranties of the Sellers. Any
    further claims by the Buyer for a reduction of the
    purchase price, rescission or payment of damages, whether
    on the basis of violation of pre-contractual duties of
    care, voidability (Anfechtbarkeit) or on any other cause
    of action, shall be excluded. Claims based upon
    deliberate misconduct ("vorsatzliches Handeln") are not
    limited by any of the provisions of this Agreement.

(8) Payments of the Sellers made according to this  5
    constitute in the relationship between the Sellers and
    Wiley a reduction of the purchase price.


                    Statute of Limitations
                               
(1) All claims of the Buyer arising under this Agreement
    against the Sellers shall be time-barred on September 30,
    1997. For claims based upon deliberate misconduct
    ("vorsatzliches Handeln"), the statutory limitation
    periods shall apply.

(2) The expiry period of any claim of the Buyer shall be
    suspended by any written assertion of such claim vis-a-
    vis Sellers, provided that the Buyer must commence
    judicial proceedings within three months after receipt of
    the written assertion by the Sellers (but not before
    expiration of the relevant contractual or statutory
    expiry period).

                        Merger Control

(1) Buyer shall without delay notify the German Federal
    Cartel Office of this transaction pursuant to Section 24
    a German Statute against Trade Restraints
    ("Kartellgesetz").

(2) Sellers shall assist and join the Buyer in the
    notification procedure and, upon request, shall submit to
    the Buyer all information necessary for such purpose.
    Buyer shall keep Sellers informed on the proceedings.

(3) Should a prohibition order be issued by the Federal
    Cartel Office, the parties shall discuss how to proceed it
    being understood that no party shall be obliged to agree to 
    appeal jointly against the order. This Agreement shall be
    considered void (auflosende  Bedingung) in case a prohibition
    order is issued and is  not appealed against jointly by
    Sellers and Buyer within the periods prescribed by law,
    except for the provision of Section 3 (9) (c), and no
    party shall have a claim against the other in such case.


                            Waivers
                               
Sellers hereby confirm that, subject to the payment by the
Purchaser of the Purchase Price hereunder, neither they nor
any of their Affiliates ("verbundene Unternehmen" within the
meaning of Sections 15 ff the German Stock Corporation Law)
nor any company or partnership in which any of them owns or
controls (whether directly or indirectly) 25 % or more of the
share capital will have any further claims of any type against
the Company or members of VCH Group, except for claims under
the agreements annexed hereto as Exhibits including their pre-
decessor agreements which are currently in force, and except
for the claim for repayment of the shareholder loan granted to
the Company.


         Conduct of Business until Transfer of Shares
                               
The Sellers shall reasonably endeavour to procure that the
business of VCH Group will be continued in the usual and
orderly manner in the period between the signing of this
Agreement and the time that the transfer of the GDCh Shares
and DPhG Shares becomes effective. The Sellers will keep Wiley
permanently posted on the business of VCH Group, and will
procure that Wiley representatives have access to the
premises, and will consult with Wiley prior to taking part in
important business decisions including without limitation the
taking on of financial debt.


                        Confidentiality
                               
The Sellers undertake to keep confidential all business and
operating secrets of VCH Group and not to disclose them to any
third party. Buyer undertakes to keep confidential all
business and operating secrets of VCH Group and not to
disclose them to any third party until the Closing Date.


                   Non-Competition Covenant
                               
(1) Each of the Sellers undertakes not to compete until
    December 31, 1998 with VCH Group or its legal successors.
    The Sellers will therefore neither establish a
    competitive enterprise nor participate in a competitive
    enterprise nor assist any competitive enterprise in any
    other form.
    
    The above non-competition undertaking does not apply in
    the following cases:

    

    -    for any activities in connection with the journals
         "Farbe und Lack", "Fresenius Zeitschrift fur
         analytische Chemie", and "Tenside, Surfactants,
         Detergents",

    -    for new book projects or other new publications and
         any other projets for which VCH has any kind of
         right of first refusal, should VCH decide not to
         exercise its option for such new book projects,
         other new publications or projects under the terms
         of the Cooperation Agreement (Exhibit  15 (3)),
  
    -    for any Journals if VCH's rights with respect to
         such Journal terminate pursuant to Paragraph 7 of
         the general publishing agreement (Exhibit  15 (1));
   
    -    for any lectures and proceedings volumes, which
         contain material presented at events organized by
         GDCh. However, VCH shall be given the opportunity to
         publish the works at terms and conditions accepted
         by GDCh. VCH shall respond to GDCh's request to
         publish such works in a timely manner.

    -    for the development of on-line chemistry data bases
         with FIZ Chemie and FIZ Karlsruhe.

(2) For each case of violation the Sellers will, after having
    been warned off, pay a contractual penalty of DM 20,000.
    In the event of a continued violation the contractual pen-
    alty is owed for each one month period without the re
    quirement of being warned off again. The right to request
    that the Sellers or any of them cease and desist, and the
    right to request damages remains unaffected.

(3) Restrictions of the right to compete contained in the
    Articles of Association of VCH shall not be cancelled or
    modified by this provision.


                     Public Announcements
                               
Wiley and the Sellers will in respect of this Agreement not
cause to be made any press announcement without prior thereto
having obtained the consent of the other contracting parties.
The consent may not be unreasonably withheld.

It is known to the Sellers that Wiley may be obliged to
publicly announce the subject of this agreement.


                          Assignment
                               
Neither Buyer nor the Sellers are entitled to transfer without
the consent of the other contracting party rights or
obligations arising from out of this Agreement to a third
party (for this purpose, "third party" shall not include
Affiliates of Buyer, provided Buyer guarantees the prompt
performance of all obligations under this Agreement
transferred to the relevant Affiliate).
                               
                               
         Profit and Loss Pooling and Control Agreement
                               
(1) Wiley or a company affiliated with Wiley intends to
    conclude with VCH a profit and loss pooling and/or
    control agreement as set forth in Exhibit  14. The
    Sellers in their capacity as shareholders of VCH
    undertake to support any shareholder resolution proposed
    by Wiley in order to approve a control and profit and
    loss pooling agreement substantially in line with Exhibit 14.

(2) The parties agree that Wiley shall not be obliged to
    acquire the shares of GDCh and DPhG by way of analogous
    application of section 305 Stock Corporation Act, and
    Sellers hereby waive any right they may have in this
    connection. Wiley accepts such waiver.

(3) Wiley contemplates to convert VCH into a partnership, a
    GmbH & Co. KG, in which GDCh and DPhG would either be
    limited partners or in which GDCh and DPhG would
    participate via a GmbH held by them. The Sellers in their
    capacity as shareholders of VCH undertake to support a
    shareholder resolution proposed by Wiley GmbH in order to
    approve such a conversion, subject to such conversion not
    creating a disadvantage for Sellers which is more than
    immaterial.

                               
      General Publishing Agreement/Individual Publishing
               Agreements/Cooperation Agreement
                               
(1) Wiley shall cause VCH to, and GDCh shall, enter into a
    General Publishing Agreement as set forth in
    Exhibit  15(1). Wiley shall cause VCH to, and DPhG
    shall, also discuss and agree, on the basis of the
    General Publishing Agreement with GDCh but reasonably
    taking into account relevant differences, on a General
    Publishing Agreement.

(2) Wiley shall cause VCH to, and GDCh shall, enter into the
    Transitional Agreement set forth in Exhibit  15(2).



(3) Wiley and GDCh shall enter into a Cooperation Agreement
    as set forth in Exhibit  15(3).
                               
                               
                Articles of Association of VCH
                               
Wiley and the Sellers shall change the Articles of Association
of VCH substantially as shown in Exhibit  16.


                       Several Liability
                               
(1) GDCh and DPhG shall be liable hereunder severally and not
    jointly.

(2) For monetary obligations, GDCh shall bear 9/10
    (nine/tenth) and DPhG shall bear 1/10 (one tenth) of the
    amount.
                               
                         Miscellaneous
                               
(1) Any notices and other communications in connection with
    this Agreement shall be in writing and shall be delivered
    or sent by registered mail, telex or telefax to the
    following persons and addresses or such other addresses
    as the parties may hereafter notify to each other:

    If to Sellers:     Gesellschaft Deutsche Chemiker e.V.,
                        Varrentrappstrasse 40
                        D-60486 Frankfurt am Main
                        Federal Republic of Germany
                        Geschaftsfuhrung
                        Herrn Prof. Dr. Dr. h.c. H. tom Dieck,
                        
                        such notice also being valid vis-a-vis
                        DPhG
                        
                        
    with a copy to:    Bruckhaus Westrick Stegemann
                       Dr. Konstantin Mettenheimer, business
                       address: Taunusanlage 11, 60329
                                Frankfurt am Main



    If to the Buyer:   John Wiley & Sons, Inc., Attn: Richard
                       Rudick, General Counsel,
                       605 Third Avenue, New York,
                       N.Y. 10158-0012
    
    with a copy to:    Hengeler Mueller Weitzel Wirtz
                       Dr. Klaus-Dieter Stephan, business
                       address: Bockenheimer Landstrasse
                                51-53, 60325 Frankfurt am Main
    
    
(2) DPhG hereby grants GDCh a power-of-attorney to act in the
    name of DPhG, and to enter into any agreement and to make
    and accept and receive any declarations and to take any
    action in the name of DPhG, in the context of this
    Agreement and the transactions contemplated herein.

(3) The costs and expenses of this Agreement including tax,
    legal, financial advisory and brokerage costs and fees
    shall be borne by the party commissioning the respective
    costs. The notarial costs and Federal Cartel Fees of this
    Agreement shall be borne by the Buyer. Sellers guarantee
    that the Company will not be charged any brokerage or
    similar fees in the context of this transaction.

(4) Exhibits to this Agreement constitute an integral part of
    this Agreement.

(5) This Agreement and its Exhibits comprise the Agreement
    between the parties concerning the subject of the
    Agreement and replace all oral or written declarations of
    intention made by the parties in connection with the
    contractual negotiations. Changes of and amendments to
    this Agreement shall be made in writing.

(6) This Agreement and any disputes which may arise therefrom
    shall be governed by and construed in accordance with the
    laws of the Federal Republic of Germany (without giving
    effect to its conflict of laws principles) excluding the
    laws governing the international sale of goods. Non-
    exclusive jurisdiction shall vest in the courts of
    Frankfurt am Main regarding all disputes arising out of
    this Agreement.

(7) In the event that one or more provisions of this
    Agreement shall be, or shall be deemed to be, invalid or
    unenforceable, or if this Agreement is incomplete, the
    validity and enforceability of the other provisions of
    this Agreement shall not be affected thereby. In such a
    case the parties hereto agree hereby on such valid and
    enforceable provision or on provisions completing this
    Agreement which are commensurate with the commercial
    intent of this Agreement.