Exhibit Number (10)(iii)
                                                        To 3/31/97 Form 10-Q


                           NORTHERN TRUST CORPORATION
                       AMENDED 1992 INCENTIVE STOCK PLAN


1.  Purpose. The Northern Trust Corporation Amended 1992 Incentive Stock Plan
    (the "Plan") is intended to provide a sense of recognition and managerial
    participation among key officers of Northern Trust Corporation (the
    "Corporation") and its subsidiaries, by providing them with opportunities to
    acquire shares of Common Stock of the Corporation ("Common Stock") and cash
    payments based on the value or increase in the value of such shares as
    described herein, and to allow the Corporation to compensate directors under
    the Plan for their services in a manner that aligns their interests with
    those of stockholders. Benefits granted under the Plan are referred to as
    "Awards."

2.   Administration. The Plan will be administered by the Compensation and
     Benefits Committee (the "Committee") of the Board of Directors of the
     Corporation. The Committee shall consist of at least two (2) of such
     Directors as the Board may designate from time to time. Notwithstanding
     anything to the contrary contained herein, membership of the Committee
     shall be limited to Board members who meet the "non-employee director"
     definition in Rule 16b-3 under Section 16 of the Securities Exchange Act of
     1934, as amended (the "Exchange Act") and the "outside director" definition
     under Section 162(m) of the Internal Revenue Code (the "Code") and the
     regulations thereunder.

3.   Participants. Participants will consist of (a) directors of the
     Corporation, and (b) key officers of the Corporation or its subsidiaries as
     the Committee in its sole discretion determines to be mainly responsible
     for the success and future growth and profitability of the Corporation and
     whom the Committee may designate from time to time to receive Awards under
     the Plan. Awards may be granted to participants who are or were previously
     participants under this or other plans of the Corporation or any subsidiary
     and, with the agreement of the participant, may be granted in substitution,
     exchange or cancellation of any rights or benefits then or theretofore held
     under this or other plans of the Corporation or any subsidiary. The
     Corporation may continue to award bonuses and other compensation to
     participants under other programs now in existence or hereafter
     established.

4.   Types of Awards. Awards under the Plan may be granted in any one or a
     combination of (a) Stock Options, (b) Stock Appreciation Rights, (c)
     Performance Shares, (d) Stock Awards, and (e) Stock Equivalents, all as
     described below. 

5.   Shares Issuable Under the Plan. An aggregate of 16,000,000 shares of Common
     Stock, $1.66-2/3 par value per share, consisting of authorized but unissued
     shares or treasury shares, may be issued under the Plan from and after the
     date of its initial adoption. Such total number of shares shall be adjusted
     in accordance with the provisions of Section 11 hereof, and a share subject
     to a Stock Option and its related Stock Appreciation Right shall only be
     counted once. The maximum number of shares of Common Stock as to which a
     participant may receive Stock Options and Stock Appreciation Rights during
     the term of the Plan is 1,200,000, as such number may be adjusted in
     accordance with the provisions of Section 11 hereof. The maximum number of
     Performance Shares that may be granted to any participant in any year after
     1997 is 75,000, as such number may be adjusted in accordance with the
     provisions of Section 11 hereof. Any shares subject to Stock Options or
     Stock Appreciation Rights, issued as Performance Shares or Stock Awards or

 
     allotted as Stock Equivalents may thereafter be subject to new Stock
     Options or Stock Appreciation Rights, issued as Performance Shares or Stock
     Awards or allotted as Stock Equivalents under this Plan if there is a
     lapse, cancellation, forfeiture, surrender, expiration or termination of
     any such Stock Options, Stock Appreciation Rights, Performance Shares,
     Stock Awards or Stock Equivalents, or if shares are issued under such Stock
     Options or Stock Appreciation Rights or as such Performance Shares, Stock
     Awards or Stock Equivalents, and thereafter are reacquired by the
     Corporation pursuant to rights reserved by the Corporation upon issuance
     thereof.

6.   Stock Options.  The Committee may, in its discretion, grant Stock Options
     under the Plan to any participant hereunder. Each Stock Option granted
     hereunder shall be subject to such terms and conditions as the Committee
     may determine at the time of grant, the general provisions of the Plan, the
     terms and conditions of the applicable Stock Option Agreement, and the
     following specific rules:

     (a)  Stock Options granted to a participant under the Plan shall be
          governed by a Stock Option Agreement, which shall specify such terms
          and conditions, not inconsistent with the terms and conditions of the
          Plan, as the Committee shall determine.

     (b)  Except as provided in subsection (d) below, Stock Options will consist
          of options to purchase Common Stock at purchase prices not less than
          100% of the fair market value thereof on the date the Stock Options
          are granted.

     (c)  Stock Options will be exercisable not earlier than six months after
          the date they are granted and will terminate not later than three
          years after termination of employment for any reason other than death.
          Notwithstanding the preceding sentence, Stock Options granted on or
          after April 18, 1995, which are not Incentive Stock Options, will
          terminate not later than five years from the date of the participant's
          termination of employment on account of retirement, disability or
          death (but in no event beyond the expiration of ten years from the
          date of grant).

     (d)  Stock Options may, but need not, be "Incentive Stock Options" under
          Section 422 of the Code; provided, however, that (i) the exercise
          price of each Incentive Stock Option shall be at least 100% of the
          fair market value of the Common Stock subject to such Incentive Stock
          Option on the date of grant; (ii) Incentive Stock Options will be
          exercisable not later than ten years after the date of grant; and
          (iii) in the case of an Incentive Stock Option granted to a
          participant who, at the time of grant, owns (as defined in Section
          425(d) of the Code) stock of the Corporation or its subsidiaries
          possessing more than 10% of the total combined voting power of all
          classes of stock of any such corporation, the exercise price shall be
          at least 110% of the fair market value of the Common Stock subject to
          the Incentive Stock Option at the time it is granted and the Incentive
          Stock Option, by its terms, shall not be exercisable after the
          expiration of five (5) years from the date of its grant. The aggregate
          fair market value (determined with respect to each Incentive Stock
          Option as of the time such Incentive Stock Option is granted) of the
          shares of capital stock with respect to which Incentive Stock Options
          are exercisable for the first time by a participant during any
          calendar year (under all Incentive Stock Option plans of the
          Corporation and subsidiary corporations) shall not exceed $100,000.

                                      -2-

 
     (e)  Leaves of absence for military service or illness, and transfers of
          employment between the Corporation and any subsidiary thereof or
          between subsidiaries, shall not constitute termination of employment.

     (f)  Stock Options may provide that they may be exercised by payment of the
          purchase price (i) in cash, (ii) by the Corporation's withholding a
          portion of the shares of Common Stock otherwise distributable to the
          participant, and/or (iii) by the participant's delivering to the
          Corporation shares of Common Stock of the Corporation. In the event
          that the exercise price of a Stock Option is paid in whole or in part
          by the withholding or delivery of shares of Common Stock pursuant to
          clause (ii) or (iii) above, the number of shares so withheld or
          delivered shall be the number of shares having an aggregate fair
          market value on the date of such withholding or delivery equal to such
          Stock Option exercise price, or portion thereof, so paid. 

     (g)  Notwithstanding any other provision of the Plan to the contrary, a
          Stock Option Agreement may provide that a Stock Option will become
          exercisable as of the date of a Change in Control of the Corporation.
          For purposes of the Plan, a "Change in Control" of the Corporation
          shall be deemed to occur on the earliest of:

          (i)   The receipt by the Corporation of a Schedule 13D or other
                statement filed under Section 13(d) of the Exchange Act,
                indicating that any entity, person, or group has acquired
                beneficial ownership, as that term is defined in Rule 13d-3
                under the Exchange Act, of more than 30% of the outstanding
                capital stock of the Corporation entitled to vote for the
                election of directors ("voting stock");

          (ii)  The commencement by an entity, person, or group (other than the
                Corporation or a subsidiary of the Corporation) of a tender
                offer or an exchange offer for more than 20% of the outstanding
                voting stock of the Corporation;

          (iii) The effective time of (1) a merger or consolidation of the
                Corporation with one or more other corporations as a result of
                which the holders of the outstanding voting stock of the
                Corporation immediately prior to such merger or consolidation
                hold less than 60% of the voting stock of the surviving or
                resulting corporation, or (2) a transfer of substantially all of
                the property of the Corporation other than to an entity of which
                the Corporation owns at least 80% of the voting stock; or

          (iv)  The election to the Board of Directors of the Corporation,
                without the recommendation or approval of the incumbent Board of
                Directors of the Corporation, of the lesser of (1) three
                directors or (2) directors constituting a majority of the number
                of directors of the Corporation then in office.

     (h)  The Committee may prescribe such other terms and conditions applicable
          to Stock Options granted to a participant under the Plan that are
          neither inconsistent with nor prohibited by the Plan or any Stock
          Option Agreement.

7.   Stock Appreciation Rights. The Committee may, in its discretion, grant a
     Stock Appreciation Right under the Plan to the holder of any Stock Option
     granted hereunder.

                                      -3-

 
     Each Stock Appreciation Right granted hereunder shall be subject to such
     terms and conditions as the Committee may determine at the time of grant,
     the general provisions of the Plan, the terms and conditions of the
     applicable Stock Appreciation Right Agreement, and the following specific
     rules:

     (a)  Stock Appreciation Rights granted to a participant under the Plan
          shall be governed by a Stock Appreciation Right Agreement, which shall
          specify such terms and conditions, not inconsistent with the terms and
          conditions of the Plan, as the Committee shall determine.

     (b)  A Stock Appreciation Right may be granted in connection with a Stock
          Option at the time of the grant of the Stock Option or at any time
          thereafter up to six months prior to the expiration of the Stock
          Option.

     (c)  Each Stock Appreciation Right will entitle the holder to elect to
          receive, in lieu of exercising the Stock Option to which it relates,
          an amount (payable in cash or in shares of Common Stock of the
          Corporation, or a combination thereof, determined by the Committee and
          set forth in the related Stock Appreciation Right Agreement) of up to
          100% (or such lesser percentage as determined by the Committee and set
          forth in the related Stock Appreciation Right Agreement) of the excess
          of (i) the fair market value per share of Common Stock on the date of
          exercise of such Stock Appreciation Right, multiplied by the number of
          shares of the Common Stock with respect to which the Stock
          Appreciation Right is being exercised, over (ii) the aggregate
          exercise price under the terms of the related Stock Option for such
          number of shares.

     (d)  Each Stock Appreciation Right will be exercisable at the time and to
          the extent that the Stock Option to which it relates is exercisable,
          provided that no Stock Appreciation Right shall be exercisable during
          the first six months following the date of its grant.

     (e)  Upon exercise of a Stock Appreciation Right, the Stock Option (or
          portion thereof) with respect to which such Stock Appreciation Right
          is exercised and any other Stock Appreciation Rights with respect to
          such Stock Option (or portion thereof) shall be surrendered to the
          Corporation and shall not thereafter be exercisable.

     (f)  Exercise of a Stock Appreciation Right will reduce the number of
          shares of Common Stock purchasable pursuant to the related Stock
          Option and available under the Plan to the extent of the total number
          of shares of Common Stock with respect to which the Stock Appreciation
          Right is exercised.

     (g)  The Committee may, in its discretion, grant Limited Stock Appreciation
          Rights, which shall be exercisable only for cash automatically upon a
          Change in Control of the Corporation (as defined in Section 6(g)).
          Except as provided in this subsection (g) hereof, a Limited Stock
          Appreciation Right shall be subject to the same terms and conditions
          as other Stock Appreciation Rights.

                                      -4-

 
     (h)  The Committee may prescribe such other terms and conditions applicable
          to Stock Appreciation Rights and Limited Stock Appreciation Rights
          that are neither inconsistent with nor prohibited by the Plan or any
          Stock Appreciation Right Agreement. 

8.   Performance Shares. The Committee may, in its discretion, grant Performance
     Shares under the Plan to any participant hereunder. Each Performance Share
     granted hereunder shall be subject to such terms and conditions as the
     Committee may determine at the time of grant, the general provisions of the
     Plan, the terms and conditions of the related Performance Share Agreement,
     and the following specific rules:

     (a)  Performance Shares granted to a participant under the Plan shall be
          governed by a Performance Share Agreement, which shall specify such
          terms and conditions, not inconsistent with the terms and conditions
          of the Plan, as the Committee shall determine.

     (b)  With respect to each performance period (each of which shall be no
          less than one year in duration), the Committee shall establish such
          performance goals relating to one or more of the following: 
          (i) return-on-equity, (ii) earnings per share and (iii) Common Stock
          price. Corporate performance goals may be absolute in their terms or
          measured against or in relationship to the performance of other
          companies or indices selected by the Committee. In addition, corporate
          performance goals may be adjusted for any events or occurrences
          (including extraordinary charges, losses from discontinued operations,
          restatements and accounting charges and other unplanned special
          charges such as restructuring expenses, acquisition expenses and
          strategic loan loss provisions) as may be determined by the Committee.
          Corporate performance goals may be particular to one or more business
          units, lines of business or subsidiaries or may be based on the
          performance of the Corporation as a whole. The corporate performance
          goals and the performance targets established thereunder by the
          Committee may be identical for all participants for a given
          performance period or, at the discretion of the Committee, may differ
          among such participants.

     (c)  With respect to each performance period, the Committee shall establish
          targets for participants for achievement of performance goals. All
          targets so established shall be stated as numbers of Performance
          Shares, each of which shall represent the right, subject to the terms
          and conditions of the Plan and the Performance Share Agreement
          governing its grant, to the distribution of a share of Common Stock of
          the Corporation plus dividends, as adjusted, accruing from the
          effective date of the credit (as described in subsection (d) below) of
          such Performance Share. 

     (d)  Following the completion of each performance period, the Committee
          shall determine the extent to which performance goals for that
          performance period have been achieved and shall authorize credit as of
          the end of such performance period of Performance Shares, in
          accordance with the terms of the applicable Performance Share
          Agreements, to the Accounts of participants for whom targets were
          established, which Accounts shall be maintained by the Corporation for
          each

                                      -5-

 
          participant who is credited with Performance Shares under the Plan and
          remains eligible for any distribution therefrom.

     (e)  Each Performance Share credited to a participant's Account, along with
          dividends accruing from the effective date of credit of such
          Performance Share, shall be distributed to him, or in the event of his
          death to his beneficiary, upon the first to occur during his
          employment of (i) his retirement, disability or death, (ii) the third
          anniversary of the date on which such Performance Share was credited
          to the participant's Account, or (iii) for any other reason deemed
          appropriate by the Committee in its sole discretion. Notwithstanding
          clause (ii) of the preceding sentence, a participant may elect, in
          writing, to have a Performance Share and related dividends distributed
          to him on a date later than on the third anniversary of the date on
          which such Performance Share was credited to his Account; provided,
          however, that in such event, distribution of the Performance Share and
          related dividends shall be distributed on the first to occur during
          the participant's employment of the events specified in clause (i) or
          (iii) above or, if earlier, upon the first to occur of the date
          specified by the participant or the date his employment with the
          Corporation terminates for any reason following the third anniversary
          of the date on which such Performance Share was credited to his
          Account.

     (f)  Notwithstanding any other provision of the Plan to the contrary, a
          Performance Share Agreement may provide that Performance Shares
          credited to participants' Accounts, as well as Performance Shares
          targeted with respect to any performance period, will become
          immediately distributable to participants, in whole or in part, upon a
          Change in Control (as defined in Section 6(g)).

     (g)  The Committee may prescribe such other terms and conditions applicable
          to Performance Shares granted to a participant under the Plan that are
          neither inconsistent with nor prohibited by the Plan or any
          Performance Share Agreement.

9.   Stock Awards. The Committee may, in its discretion, grant, or sell for such
     amount of cash, Common Stock or such other consideration as the Committee
     deems appropriate (which amount may be less than the fair market value of
     the Common Stock on the date of grant or sale), shares of Common Stock
     under the Plan to any participant hereunder. Each share of Common Stock
     granted or sold hereunder shall be subject to such restrictions, conditions
     and other terms as the Committee may determine at the time of grant or
     sale, the general provisions of the Plan, the restrictions, terms and
     conditions of the related Stock Award Agreement, and the following specific
     rules:

     (a)  Shares of Common Stock issued to a participant under the Plan shall be
          governed by a Stock Award Agreement, which shall specify whether the
          shares of Common Stock are granted or sold to the participant and such
          other provisions, not inconsistent with the terms and conditions of
          the Plan, as the Committee shall determine.

                                      -6-

 
     (b)  The Corporation shall issue, in the name of the participant, stock
          certificates representing the total number of shares of Common Stock
          granted or sold to the participant, as soon as may be reasonably
          practicable after such grant or sale, which shall be held by the
          Secretary of the Corporation as provided in subsection (g) hereof.

     (c)  Subject to the provisions of subsections (b) and (d) hereof, and the
          restrictions set forth in the related Stock Award Agreement, the
          participants receiving a grant of or purchasing Common Stock shall
          thereupon be a stockholder with respect to all of the shares
          represented by such certificate or certificates and shall have the
          rights of a stockholder with respect to such shares, including the
          right to vote such shares and to receive dividends and other
          distributions paid with respect to such shares.

     (d)  The Committee may prescribe, in its discretion, that any share of
          Common Stock granted to a participant pursuant to the Plan shall be
          forfeited, and any share of Common Stock sold to a participant
          pursuant to the Plan shall, at the Corporation's option, be resold to
          the Corporation for an amount equal to the value of the cash and/or
          property paid therefor, and, in either case, such shares shall revert
          to the Corporation, if (i) the participant violates a noncompetition
          or confidentiality agreement or other condition set forth in the Stock
          Award Agreement, or (ii) the participant's employment with the
          Corporation or its subsidiaries terminates prior to a date or dates
          for expiration of the forfeiture or resale provisions set forth in his
          Stock Award Agreement, which date shall not be earlier than the first
          anniversary of such grant or sale. The Corporation shall exercise its
          right to require a forfeiture, and may exercise its right to require a
          resale, of Common Stock pursuant to this subsection by giving written
          notice to the participant at any time within the thirty-day period
          following (i) the date that the Corporation acquires knowledge of his
          violation of a non-competition or confidentiality agreement or other
          condition, or (ii) the participant's termination of employment with
          the Corporation or its subsidiaries prior to such date set forth in
          the related Stock Award Agreement. Upon receipt of such notice, the
          Secretary of the Corporation shall promptly cancel shares of Common
          Stock that are forfeited or resold to the Corporation, and the
          Corporation shall make payment therefor, if applicable, as soon as
          reasonably practicable following the date of such resale.

     (e)  The Committee, in its discretion, shall have the power to accelerate
          the date on which the restrictions contained in any Stock Award
          Agreement shall lapse with respect to any or all shares of Common
          Stock granted or sold under the Plan that have been outstanding for at
          least one year.

     (f)  Notwithstanding any provision of the Plan to the contrary, a Stock
          Award Agreement may provide that (i) upon the participant's
          termination of employment because of his retirement, death or
          disability (as determined by the Committee), or (ii) upon a Change in
          Control of the Corporation (as described in Section 6(g)), any
          restrictions of this Section 9 or in any Stock Award Agreement shall
          lapse.

                                      -7-

 
     (g)  The Secretary of the Corporation shall hold the certificate or
          certificates representing shares of Common Stock issued under this
          Section 9 of the Plan on behalf of each participant who holds such
          shares, whether by grant or sale, until such time as the Common Stock
          is forfeited, resold to the Corporation, or the restrictions lapse.

     (h)  The Committee may prescribe such other restrictions, terms and
          conditions applicable to the shares of Common Stock issued to a
          participant under this Section 9 of the Plan that are neither
          inconsistent with nor prohibited by the Plan or any Stock Award
          Agreement, including, without limitation, terms providing for a lapse
          of the restrictions of this Section 9 or in any Stock Award Agreement,
          in installments.

10.  Stock Equivalents. The Committee may, in its discretion, award Stock
     Equivalents under the Plan to participants hereunder. Each Stock Equivalent
     granted hereunder shall be subject to such terms and conditions as the
     Committee may determine at the time of grant, the general provisions of the
     Plan, the terms and conditions of the applicable Stock Equivalent Agreement
     and the following specific rules:

     (a)  Grants of Stock Equivalents to a participant under the Plan shall be
          governed by a Stock Equivalent Agreement, which shall specify such
          terms and conditions, not inconsistent with the terms and conditions
          of the Plan, as the Committee shall determine. 

     (b)  Any participant who is awarded a Stock Equivalent shall be entitled to
          receive a payment, in cash or in shares of Common Stock of the
          Corporation, as provided in the Stock Equivalent Agreement, equal to
          (i) the fair market value or book value, at a specified date or dates,
          of a designated number of shares of Common Stock; (ii) the
          appreciation in the fair market value or the book value, occurring
          during a specified period of time, of a designated number of shares of
          Common Stock; or (iii) the fair market value or book value, at the
          date of the Award, payable at a specified date or dates, of a
          designated number of shares of Common Stock.

     (c)  The date or dates for determining fair market value or book value, or
          for payment, or the period of time over which the appreciation in fair
          market value or book value shall be measured, as the case may be,
          shall be established by the Committee and shall be specified in the
          applicable Stock Equivalent Agreement, provided that such date, dates
          or period of time shall not include any dates or period occurring
          later than ten years after the date of the Award.

     (d)  Stock Equivalents may be subject to such terms and conditions, not
          inconsistent with the terms and conditions of the Plan, as the
          Committee determines appropriate, which may include, without
          limitation, requirements for the achievement of performance goals.

                                      -8-

 
     (e)  Any Stock Equivalent may provide that the participant shall receive,
          on the date of payment of any dividend on Common Stock occurring
          during the period preceding payment of the Award, an amount in cash
          equal in value to the dividends that the participant would have
          received had he been the actual owner of the number of shares of
          Common Stock designated by the Committee at the time of the Award.

     (f)  The Corporation's obligation to make payments or distributions with
          respect to Stock Equivalents shall not be funded or secured in any
          manner.

     (g)  Notwithstanding any provision of the Plan to the contrary, a Stock
          Equivalent Agreement may provide that a Stock Equivalent will become
          immediately vested and payable, in whole or in part, upon a Change in
          Control (as defined in Section 6(g)).

     (h)  The Committee may prescribe such other terms and conditions applicable
          to Stock Equivalents granted to a participant under the Plan that are
          neither inconsistent with nor prohibited by the Plan or any Stock
          Equivalent Agreement.

11.  Adjustment Provisions.

     (a)  The aggregate number of shares of Common Stock with respect to which
          Awards may be granted, the aggregate number of shares of Common Stock
          subject to each outstanding Award, and, where applicable, the exercise
          price per share of each Award, may all be appropriately adjusted as
          the Board of Directors of the Corporation may determine for any
          increase or decrease in the number of shares of issued Common Stock
          resulting from a subdivision or consolidation of shares, whether
          through reorganization, recapitalization, stock split-up, stock
          distribution or combination of shares, or the payment of a share
          dividend or other increase or decrease in the number of such shares
          outstanding effected without receipt of consideration by the
          Corporation. Adjustments under this Section 11 shall be made according
          to the sole discretion of the Board of Directors of the Corporation,
          and its decision shall be binding and conclusive.

     (b)  Notwithstanding any other provisions of the Plan, and without
          affecting the number of shares reserved or available hereunder, the
          Committee may authorize the issuance or assumption of benefits in
          connection with any merger, consolidation, acquisition of property or
          stock, or reorganization upon such terms and conditions as it may deem
          appropriate.

     (c)  If the shares of Common Stock shall be changed into another kind of
          stock of the Corporation or into securities of another corporation,
          whether through reorganization, sale of assets, merger, consolidation,
          or similar transaction, the Corporation shall cause adequate provision
          to be made whereby participants shall thereafter be entitled to
          receive, upon distribution of their Awards, the securities that they
          would have been entitled to receive for shares distributed pursuant to
          the Plan immediately prior to the effective date of the transaction.

                                      -9-

 
12.  Nontransferability. Except as provided below, each Award granted under the
     Plan to an employee shall not be transferable by him other than by will or
     the laws of descent and distribution and shall be exercisable, during his
     lifetime, only by him. In the event of the death of a participant during
     employment or prior to the termination, expiration, cancellation or
     forfeiture of any Award held by him hereunder, each Award theretofore
     granted to him shall be exercisable or payable to the extent provided
     therein but no later than five years after his death and then only:

     (a)  by or to the executor or administrator of the estate of the deceased
          participant or the person or persons to whom the deceased
          participant's rights under the Award shall pass by will or the laws of
          descent and distribution; and

     (b)  to the extent set forth in the Agreement.

     Notwithstanding the foregoing, a Stock Option Agreement for an Award of
     Stock Options that are not Incentive Stock Options (including a Stock
     Option Agreement for an Award made prior to the January 1, 1995 effective
     date of the amendment to this Section 12), may permit the participant who
     received the Award, at any time prior to his death, to assign all or any
     portion of the Stock Option granted to him to: (i) his spouse or lineal
     descendants; (ii) the trustee of a trust for the primary benefit of his
     spouse or lineal descendants; or (iii) a partnership of which his spouse
     and lineal descendants are the only partners. In such event, the spouse,
     lineal descendant, trustee or partnership will be entitled to all of the
     rights of the participant with respect to the assigned portion of such
     Stock Option, and such portion of the Stock Option will continue to be
     subject to all of the terms, conditions and restrictions applicable to the
     Award, as set forth herein and in the related Stock Option Agreement
     immediately prior to the effective date of the assignment. Any such
     assignment will be permitted only if: (i) the participant does not receive
     any consideration therefor; and (ii) the assignment is expressly permitted
     by the applicable Stock Option Agreement (as such Stock Option Agreement
     may be amended) as approved by the Committee. Any such assignment shall be
     evidenced by an appropriate written document executed by the participant,
     and a copy thereof shall be delivered to the Committee on or prior to the
     effective date of the assignment.

13.  Other Provisions. Any Award under the Plan shall be subject to other
     provisions as the Committee determines, including, without limitation,
     provisions for the installment purchase of Common Stock under Stock
     Options, provisions to assist the participant in financing the acquisition
     of Common Stock, provisions for the forfeiture of, or restrictions on
     resale or other disposition of shares acquired under any Award, provisions
     to comply with Federal and state securities laws, provisions permitting
     acceleration of exercise in the event of death or disability,
     understandings or conditions as to the participant's employment in addition
     to those specifically provided for under the Plan, provisions giving the
     Corporation the right to repurchase shares acquired under any Award in the
     event the participant elects to dispose of such shares, provisions
     requiring the achievement of specified performance goals, and provisions
     permitting acceleration of exercise upon the occurrence of specified events
     or otherwise in the discretion of the Committee.

                                      -10-

 
14.  Taxes. The Corporation shall be entitled, if necessary or desirable, to pay
     or withhold the amount of any tax attributable to any amounts payable under
     any benefit after giving the person entitled to receive such amount notice
     as far in advance as practicable, and the Corporation may defer making
     payment as to any benefit if any such tax, charge or assessment may be
     pending until indemnified to its satisfaction. In connection with an Award
     under the Plan in the form of shares of Common Stock, and in lieu of
     requiring a participant to make a cash payment to the Corporation in an
     amount related to the tax resulting from such benefit, the Committee may,
     in its discretion, provide that, at the participant's election, the tax
     withholding obligation in connection with such benefit shall be satisfied
     by the Corporation's withholding a portion of the shares otherwise
     distributable to the participant or by the participant's delivering to the
     Corporation the shares previously delivered by the Corporation in respect
     of such Award, such shares being valued in either event at their fair
     market value as of the date of such withholding or delivery, as the case
     may be. Notwithstanding any provision of the Plan to the contrary, a
     participant's election pursuant to the preceding sentence must be made on
     or prior to the date as of which income is realized by the participant in
     connection with such Award and must be irrevocable.

15.  Amendment, Suspension or Termination of Plan. The Board of Directors of the
     Corporation may at any time suspend or terminate the Plan or amend the Plan
     as it deems advisable and in the best interests of the Corporation. No
     amendment, without approval of the stockholders of the Corporation, shall
     (i) except as provided in Section 11, materially increase the total number
     of shares that may be issued under the Plan, or increase the amount or type
     of benefits that may be granted under the Plan, provided that,
     notwithstanding the foregoing, in no event shall the number of shares
     issuable under the Plan as Incentive Stock Options exceed 16,000,000, as
     such number may be adjusted in accordance with the provisions of Section
     11; (ii) materially change the class of eligible employees; or (iii)
     materially increase benefits to any participant who is subject to the
     restrictions of Section 16 of the 1934 Act. All benefits in effect at the
     time of termination of the Plan shall remain in effect according to their
     original terms.

16.  No Contract of Employment. Neither the adoption of the Plan nor the grant
     of any Award hereunder shall be deemed to obligate the Corporation or any
     subsidiary thereof to continue the employment of any participant for any
     particular period, nor shall the granting of an Award constitute a request
     or consent to postpone the retirement date of any participant.

17.  Stockholder Approval. The Plan was adopted by the Board of Directors of the
     Corporation as of May 1, 1992, and approved by the stockholders of the
     Corporation. Amendments to the Plan have been adopted, including amendments
     approved by the stockholders at the 1995 annual meeting of stockholders.
     The Plan was further amended on February 18, 1997, with certain amendments
     adopted subject to approval by the stockholders of the Corporation at the
     1997 annual meeting of stockholders. These amendments shall be null and
     void if stockholder approval is not obtained.

18.  Duration of the Plan. This Plan shall be effective for the ten-year period
     commencing May 1, 1992 and no benefits shall be granted hereunder after
     April 30, 2002.

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19.  Applicable Law. All questions pertaining to the validity, construction and
     administration of the Plan and all Awards hereunder shall be determined in
     conformity with the laws of the State of Illinois and, in the case of
     Incentive Stock Options, Section 422 of the Code and regulations issued
     thereunder.

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