DONALDSON CO INC
PRE 14A, 1997-10-03
INDUSTRIAL & COMMERCIAL FANS & BLOWERS & AIR PURIFING EQUIP
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                                 SCHEDULE 14A 
                                (RULE 14a-101) 
                   INFORMATION REQUIRED IN PROXY STATEMENT 
                           SCHEDULE 14A INFORMATION 

               PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE 
                SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO. )

Filed by the registrant [X] 

Filed by a party other than the registrant [ ] 

Check the appropriate box: 
[X] Preliminary proxy statement 
[ ] Definitive proxy statement 
[ ] Definitive additional materials 
[ ] Soliciting material pursuant to Rule 14a-11(c) or Rule 14a-12 
[ ] Confidential, for Use of the Commission Only (as permitted by Rule 
    14a-6(e)(2))

                             DONALDSON COMPANY, INC.
- --------------------------------------------------------------------------------
                (Name of Registrant as Specified in Its Charter)


                                      
- --------------------------------------------------------------------------------
    (Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):  

[X] No fee required

[ ] Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11. 

     (1)  Title of each class of securities to which transaction applies:
     (2)  Aggregate number of securities to which transactions applies:
     (3)  Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11. (Set forth the amount on which the
          filing fee is calculated and state how it was determined.)
     (4)  Proposed maximum aggregate value of transaction:
     (5)  Total fee paid: 

[ ]  Fee paid previously with preliminary materials.

     [ ]  Check box if any part of the fee is offset as provided by Exchange
          Act Rule 0-11(a)(2) and identify the filing for which the offsetting
          fee was paid previously. Identify the previous filing by registration
          statement number, or the Form or Schedule and the date of its filing.

     (1)  Amount previously paid:

     (2)  Form, Schedule or Registration Statement No.:

     (3)  Filing party:

     (4)  Date filed:

<PAGE>


                             DONALDSON COMPANY, INC.
                                    NOTICE OF
                         ANNUAL MEETING OF STOCKHOLDERS


TIME:                10:00 a.m., central time, Friday, November 21, 1997

PLACE:               The Conference Center at Atrium Center, 3105 E. 80th
                     Street, Bloomington, Minnesota.

ITEMS OF             (1)     Election of two directors;
BUSINESS:
                     (2)     Amendment of the Company's Certificate of
                             Incorporation to increase the number of authorized
                             shares of Company Common Stock from 40,000,000 to
                             80,000,000;

                     (3)     Ratification of Ernst & Young LLP as independent
                             auditors of the Company; and

                     any other business that properly comes before the meeting.

RECORD DATE:         Stockholders of record at the close of business on
                     September 26, 1997 are entitled to notice of and to vote at
                     the meeting or any adjournment. A list of such stockholders
                     will be available prior to the meeting at the office of the
                     Company, 1400 West 94th Street, Minneapolis, Minnesota for
                     examination by any such stockholder for any purpose germane
                     to the meeting.

                                              By Order of the Board of Directors



                                              Norman C. Linnell
                                              SECRETARY

                     Dated: October ____, 1997




                                    IMPORTANT

     YOU CAN HELP US PREPARE FOR THE MEETING AND ELIMINATE EXTRA EXPENSE WHETHER
     YOU HAVE A FEW SHARES OR MANY - IF YOU WILL COMPLETE AND RETURN THE
     ENCLOSED PROXY PROMPTLY. YOUR PROMPT REPLY WILL ELIMINATE EXTRA EXPENSE IN
     SOLICITING YOUR PROXY.

<PAGE>


                             DONALDSON COMPANY, INC.
                              1400 WEST 94TH STREET
                          MINNEAPOLIS, MINNESOTA 55431

                                 PROXY STATEMENT
                         MAILING DATE OCTOBER ____, 1997

SOLICITATION OF PROXIES

         The enclosed proxy is solicited by and on behalf of the Board of
Directors of Donaldson Company, Inc. (the "Company") for use at the Annual
Meeting of Stockholders to be held on November 21, 1997, and at any adjournments
thereof. The person signing a proxy may revoke it any time before it is
exercised. Each valid proxy received prior to the meeting will be voted
according to the stockholder's directions. If no direction is given, such
proxies will be voted in favor of (1) the nominees for directors identified
herein, (2) approving the amendment to the Company's Certificate of
Incorporation described herein, and (3) approving the auditors named herein.

         The cost of this solicitation of proxies will be borne by the Company.
In addition to solicitation of proxies by the use of the mails, there may be
incidental personal solicitations by telephone, special communications or in
person, by officers, directors and regular employees of the Company who will not
receive additional compensation therefor. The Company will reimburse banks,
brokerage firms and other nominees, custodians and fiduciaries for reasonable
expenses incurred by them in sending proxy materials and annual reports to the
beneficial owners of stock. This proxy statement and the accompanying proxy are
first being mailed to stockholders on or about October ____, 1997.

VOTING SECURITIES

         Stockholders of record as of the close of business on September 26,
1997 will be entitled to vote at the meeting. The Company then had approximately
24,732,385 shares of Common Stock outstanding, each of which entitles its holder
to one vote. Representation at the meeting of a majority of the outstanding
shares is required for a quorum.

         If an executed proxy card is returned and the stockholder has abstained
from voting on any matter or, in the case of the election of directors has
withheld authority to vote with respect to any or all of the nominees, the
shares represented by such proxy will be considered present at the meeting for
purposes of determining a quorum and for purposes of calculating the vote, but
will not be considered to have been voted in favor of such matter or, in the
case of the election of directors, in favor of such nominee or nominees. If an
executed proxy is returned by a broker holding shares in street name which
indicates that the broker does not have discretionary authority as to certain
shares to vote on one or more matters, such shares will be considered present at
the meeting for purposes of determining a quorum, but will not be considered to
be represented at the meeting for purposes of calculating the vote with respect
to such matter.

         Shares of Common Stock credited to the accounts of participants in the
Automatic Dividend Reinvestment Program of the Company have been added to the
participants' other holdings and included in the enclosed proxy. Participants in
the Company's employee benefit plans are entitled to instruct the plan trustee
as to how to vote all shares of Donaldson Common Stock allocated to their
accounts under the plans as of the record date, and will receive a separate
voting instruction card for voting such shares. Shares for which the trustee
receives no voting instructions from participants, including unallocated shares
held in the Company's employee stock ownership plan ("ESOP"), will be voted by
the trustee in the same proportion as shares for which instructions are
received.

<PAGE>


                               SECURITY OWNERSHIP

         Set forth below is information regarding persons known by the Company
to own beneficially more than 5% of the outstanding Common Stock of the Company
based on the number of shares of Common Stock outstanding on September 26, 1997:

NAME AND ADDRESS                               AMOUNT AND NATURE        PERCENT
OF BENEFICIAL OWNER                         OF BENEFICIAL OWNERSHIP     OF CLASS
- -------------------                         -----------------------     --------

Donaldson Company, Inc.
Employee Stock Ownership Plan...............      3,595,409 (1)           14.5%

c/o Fidelity Management Trust Company
82 Devonshire Street
Boston, MA 02109

Pioneering Management Corporation...........      2,511,900 (2)           10.1%
60 State Street
Boston, MA 02109

U.S. Bancorp ...............................      1,332,547 (3)            5.3%
601 Second Avenue South
Minneapolis, MN 55402

Mario J. Gabelli............................      1,266,850 (4)            5.1%
One Corporate Center
Rye, NY 10580-1434

(1)      These shares are held in trust for the benefit of participants in the
         Company's ESOP for which Fidelity Management Trust Company is the
         trustee and claims no voting or investment power over the indicated
         shares.

(2)      Pioneering Management Corporation is a registered investment adviser
         with sole voting power with respect to all 2,511,900 shares and shared
         investment power with respect to all 2,511,900 shares. Information is
         based solely on a Schedule 13G filed with the Securities and Exchange
         Commission by Pioneering Management Corporation with respect to shares
         held as of December 31, 1996.

(3)      U.S. Bancorp is a holding company for one or more subsidiary banks
         which have sole voting power with respect to 619,616 shares; shared
         voting power with respect to 412,050 shares; sole investment power with
         respect to 537,292 shares and shared investment power with respect to
         1,332,547 shares. Information is based solely on a Schedule 13G filed
         with the Securities and Exchange Commission by U.S. Bancorp with
         respect to shares held as of December 31, 1996.

(4)      Mario J. Gabelli directly or indirectly controls various entities which
         are primarily investment advisors and which generally have sole
         investment and voting power as to the shares owned by the individual
         entity. Information is based solely on a Schedule 13D filed with the
         Securities and Exchange Commission by Mario J. Gabelli with respect to
         shares held as of July 19, 1996.

<PAGE>


         The following table sets forth information regarding the beneficial
ownership of the Company's Common Stock by each director, each of the Named
Officers (as hereinafter defined) and all executive officers and directors of
the Company as a group. Except as otherwise indicated, the named beneficial
owner has sole voting and investment power with respect to the shares held by
such beneficial owner.

                                             TOTAL       PERCENT     EXERCISABLE
NAME OF INDIVIDUAL OR GROUP                SHARES (1)    OF CLASS    OPTIONS (1)
- ---------------------------                ----------    --------    -----------

William G. Van Dyke....................     415,853         1.7        236,493
Nickolas Priadka.......................     111,127           *         54,265
Thomas A. Windfeldt....................      81,182           *         41,177
James R. Giertz........................      45,657           *         20,665
Lowell F. Schwab.......................      24,734           *         12,079
C. Angus Wurtele.......................      20,625           *         10,000
Kendrick B. Melrose....................      19,957           *         10,000
S. Walter Richey.......................      19,741           *         10,000
Stephen W. Sanger......................      16,088           *         10,000
Jack W. Eugster........................      13,678           *          8,000
Michael R. Bonsignore..................      11,094           *         10,000
F. Guillaume Bastiaens.................       5,760           *          4,000
Paul B. Burke..........................       3,677           *          2,000
Janet M. Dolan.........................       2,815           *          2,000
Directors and Officers as a Group......     837,728         3.4        450,932

* Less than 1%

(1)      Includes restricted shares, shares held in trust (including the ESOP
         allocation for years prior to fiscal year 1997) and the shares
         underlying options exercisable within 60 days, as listed under the
         Exercisable Options column. The total shares for Mr. Van Dyke includes
         4,128 shares held by Mr. Van Dyke's wife. The total shares for Mr.
         Windfeldt includes 1,800 shares held by Mr. Windfeldt's children.


                              ELECTION OF DIRECTORS

         The Bylaws of the Company provide that the Board of Directors shall
consist of not less than three nor more than 15 directors and that the number of
directors may be fixed from time to time by the affirmative vote of a majority
of the directors. At its meeting of September 19, 1997, the Board of Directors
fixed the number of directors constituting the entire Board at eight. Vacancies
and newly created directorships resulting from an increase in the number of
directors may be filled by a majority of the directors then in office and the
directors so chosen will hold office until the next election of the class for
which such directors shall have been chosen and until their successors are
elected and qualified. Directors are elected for a term of three years with
positions staggered so that approximately one-third of the directors are elected
at each annual meeting of the stockholders. The terms of Michael R. Bonsignore,
Jack W. Eugster, William G. Van Dyke and C. Angus Wurtele expire at the annual
meeting. Mr. Wurtele, having served five consecutive terms on the Company's
Board of Directors and having reached the limit of Board service for
non-employee directors in accordance with the Company's By-Laws, will be
retiring effective upon the conclusion of the Company's 1997 Annual Meeting. In
addition, Mr. Bonsignore, who was elected a director at the 1988 annual meeting,
has informed the Company that he has decided not to stand for re-election for
another term, and will be retiring from the Company's Board of Directors
effective upon conclusion of the 1997 Annual Meeting.

<PAGE>


Mr. Eugster was elected by the Board effective March 1, 1993 and Mr. Van
Dyke was elected by the Board effective August 1, 1994. It is intended that
proxies received will be voted, unless authority is withheld, FOR the election
of the nominees presented on Page 4, namely Jack W. Eugster and William G. Van
Dyke. The election of each nominee requires the affirmative vote of the holders
of a plurality of the shares cast in the election of directors.

         The Board of Directors meets on a regularly scheduled basis. During the
past fiscal year, the Board held six meetings. Each director, other than Messrs.
Bonsignore and Wurtele, who each attended 67%, attended at least 75% of the
aggregate of the Board meetings and meetings of Board committees on which each
served.

         The Board of Directors has assigned certain responsibilities to
standing committees. The Audit Committee is composed of directors F. Guillaume
Bastiaens, Janet M. Dolan, Jack W. Eugster, Kendrick B. Melrose, S. Walter
Richey (Chairperson) and Stephen W. Sanger, all of whom are non-employee
directors. The Audit Committee held two meetings during the past fiscal year.
Functions of the Audit Committee include: recommending to the Board of Directors
independent public auditors for the Company, reviewing the scope and results of
the auditors' examination, and reviewing the internal audit program, adequacy of
internal controls, and adherence to applicable legal, ethical and regulatory
requirements.

         The Human Resources Committee is composed of directors Michael R.
Bonsignore, Paul B. Burke, Jack W. Eugster, Kendrick B. Melrose, Stephen W.
Sanger (Chairperson), and C. Angus Wurtele, all of whom are non-employee
directors. This Committee held two meetings during the past fiscal year.
The functions of this committee include review of management development,
approval of compensation arrangements for senior management and administration
of the Company's stock compensation plans.

         The Committee on Directors' Affairs is composed of directors Michael R.
Bonsignore (Chairperson), Paul B. Burke, Janet M. Dolan, S. Walter Richey, and
C. Angus Wurtele, all of whom are non-employee directors. This Committee held
one meeting during the past fiscal year. The Committee's duties are to review
the organization of the Board and its committees, remuneration arrangements for
the directors, propose to the Board a slate of directors for election by the
stockholders at each Annual Meeting and propose candidates to fill vacancies on
the Board. The Committee will consider nominees for director recommended by
stockholders. Recommendations should be addressed to the Secretary, Donaldson
Company, Inc., P.O. Box 1299, Minneapolis, MN 55440. Any proposal by a
stockholder for the nomination of a candidate for director at the annual meeting
for the election of directors is required by the Company's Bylaws to be
submitted in writing to the Secretary and received at the principal executive
offices of the Company not less than 60 days nor more than 90 days prior to the
date of the annual meeting.

         The Board of Directors has no reason to believe that any nominees will
be unavailable or unable to serve, but in the event any nominee is not a
candidate at the meeting, the persons named in the enclosed proxy intend to vote
in favor of the remaining nominees and of such other person, if any, as they may
determine.

         The table below and on the following page sets forth additional
information with respect to each nominee for election as a director and each
other person whose term of office as a director will continue after the meeting.

<PAGE>


                              NOMINEES FOR ELECTION

<TABLE>
<CAPTION>

NAME                                         PRINCIPAL OCCUPATION AND BUSINESS EXPERIENCE
- ----                                         --------------------------------------------
<S>                              <C>
FOR A TERM EXPIRING IN 2000:

Jack W. Eugster                   Chairman, President and Chief Executive Officer of The Musicland
    Age - 52                      Group, Inc. (retail consumer products).  Also, a director of Damark, Inc.,
    Director since 1993           Midwest Resources Company, and Shopko Stores, Inc.


William G. Van Dyke               Chairman and Chief Executive Officer (1996) and President  (1994) of
    Age - 52                      the Company.  Previously, Executive Vice President (1992).  Also, a
    Director since 1994           director of Graco Inc.

                         DIRECTORS CONTINUING IN OFFICE

TERMS EXPIRING IN 1999:

F. Guillaume Bastiaens            Executive Vice President (1995) and President, Food Sector of Cargill,
    Age - 54                      Inc. (Agribusiness).  Also, a director of Cargill, Inc.
    Director Since 1995

Janet M. Dolan                    Executive Vice President (1996) of Tennant Company (manufacturer of
    Age 48                        floor maintenance equipment and coating products).  Previously
    Director Since 1996           Sr. Vice President, Secretary and General Counsel of Tennant Company.
                                  Also, a director of William Mitchell College of Law.

S. Walter Richey                  Chairman, Chief Executive Officer and President of Meritex, Inc. and its
    Age - 61                      predecessor corporation Space Center Company (owns and manages
    Director Since 1991           business properties and distribution centers).  Also, a director of Meritex,
                                  Inc., U.S. Bancorp and BMC Industries, Inc.

TERMS EXPIRING IN 1998:

Paul B. Burke                     Chairman (1995), Chief Executive Officer and President of BMC
    Age - 41                      Industries, Inc. (manufacturer of precision imaged and optical products).
    Director Since 1996           Also, a director of  The Optical Manufacturers Association.

Kendrick B. Melrose               Chairman and Chief Executive Officer of The Toro Company
    Age - 57                      (manufacturer of outdoor maintenance products). Also, a director
    Director since 1991           of The Valspar Corporation, BSI Corporation and Jostens, Inc.

Stephen W. Sanger                 Chairman and Chief Executive Officer of General Mills, Inc. (1995)
    Age - 51                      (consumer products and services).  Previously, an executive officer of
    Director since 1992           various groups and divisions of General Mills, Inc.  Also, a director of
                                  Dayton Hudson Corporation.
</TABLE>


DIRECTOR COMPENSATION

         Directors who are not employees receive a retainer fee of $18,000
annually and are paid $1,000 for each Board or Committee meeting attended.
Committee Chairmen receive an additional annual

<PAGE>


retainer of $2,500. Pursuant to the Company's Compensation Plan for Non-Employee
Directors, any non-employee director may elect, prior to each year of his term,
to defer all or part of his director compensation received during the year. Each
participating director is entitled to a Company credit on the balance in his
deferral account at the same rate as the Company credit under the Fixed Income
Fund of the Salaried Employees' Retirement Savings Plan. The deferral election
must also specify the manner for distribution of the deferral balance.

         The 1991 Master Compensation Plan, as amended, provides for the
issuance of restricted shares to non-employee directors in lieu of 30% of the
annual retainer for services as a Director to be rendered in the following
service year and allows an election to receive restricted shares in lieu of all
or part of the remaining retainer and meeting fees. Transfer of the shares is
restricted until the earliest of retirement, disability, termination of service
(with consent of the Board), death or a chang in control of the Company.

         The Company also has a nonqualified pension plan for non-employee
directors which provides for an annual retirement benefit for directors, who
have served at least five years, in an amount equal to the final annual retainer
fee received for services as a director. Such annual benefit is payable in a
lump sum or, at the election of the director, over a maximum 15-year period or
such shorter period as is equal to the number of years of service on the Board,
and provides for a benefit in the event of death.

         The Company's Non-Qualified Stock Option Program for Non-employee
Directors provides for the automatic grant of a non-qualified stock option for
2,000 shares of Common Stock to each non-employee Director of the Company who
is a member of the Board between the dates of December 1 and December 22 each
year. The exercise price of such options is the closing price of Common Stock in
consolidated trading on the first business day of December in the respective
year. The options are exercisable on and after December 22 of the respective
year and have a term of ten years.


                   AMENDMENT TO CERTIFICATE OF INCORPORATION
                      TO INCREASE AUTHORIZED COMMON STOCK

         The Company's Board of Directors has determined that Article Fourth of
the Company's Articles of Incorporation should be amended and has voted to
submit an amendment to the Company's stockholders for adoption. The proposed
amendment to Article Fourth would increase the number of authorized shares of
Common Stock, par value $5.00, from 40,000,000 to 80,000,000, and the total
number of shares of stock which the Company has the authority to issue from
41,000,000 to 81,000,000.

         As of September 26, 1997, there were 24,732,385 shares of Common Stock
outstanding, and 1,595,886 shares reserved for future issuance pursuant to the
1991 Master Stock Compensation Plan. As of September 26, 1997, there were no
shares of any class of Preferred Stock outstanding.

         The additional shares of Common Stock for which authorization is sought
would be a part of the existing class of Common Stock and, if and when issued,
would have the same rights and privileges as the shares of Common Stock
presently outstanding. Such additional shares would not (and the shares of
Common Stock presently outstanding do not) entitle the holders thereof to
preemptive or cumulative voting rights.

PURPOSES AND EFFECTS OF THE AMENDMENT

         The Board of Directors believes that additional authorized shares of
Common Stock will enable the Company to take timely advantage of market
conditions and the availability of favorable financing and acquisition
opportunities without the delay and expense associated with convening a special
stockholders' meeting (unless otherwise required by the rules of any stock
exchange on which

<PAGE>


the Company's Common Stock may then be listed). The shares of Common Stock could
be used for issuing stock dividends, the grant of stock options, acquisition by
the Company of businesses or properties, equity financing and other general
corporate purposes.

         Unless required by law or by the rules of any stock exchange on which
the Company's Common Stock may in the future be listed, no further authorized
vote by the stockholders will be sought for any issuance of shares of Common
Stock. Under existing New York Stock Exchange, Inc. regulations, approval by a
majority of the holders of Common Stock would nevertheless be required in
connection with any transaction or series of related transactions that would
result in the original issuance of additional shares of Common Stock, other than
in a public offering for cash, (a) if such additional shares of Common Stock
(including securities convertible into or exercisable for Common Stock) has, or
will have upon issuance, voting power equal to or in excess of 20 percent of the
voting power outstanding before the issuance of the Common Stock; (b) if the
number of such additional shares of Common Stock is or will be equal to or in
excess of 20 percent of the number of shares of Common Stock outstanding before
th issuance of such additional shares, or (c) if the issuance would result in a
change in control of the Company.

         Although the increase in authorized but unissued shares of Common Stock
is designed to enable the Company to issue stock dividends, grant stock options
under the Company's 1991 Master Stock Compensation Plan, to consider potential
acquisitions and to use for general corporate purposes, the increase in the
authorized but unissued shares of Common Stock could make a change in control of
the Company more difficult to achieve. Under certain circumstances, such shares
of Common Stock could be used to create voting impediments to frustrate persons
seeking to effect a takeover or otherwise gain control of the Company. Such
shares could be sold privately to purchasers who might side with the Board of
Directors in opposing a takeover bid that the board determines is not in the
best interests of the Company and its stockholders.

         The amendment also may have the effect of discouraging an attempt by
another person or entity, through acquisition of a substantial number of shares
of Common Stock, to acquire control of the Company with a view to effecting a
merger, sale of assets or a similar transaction, since the issuance of new
shares could be used to dilute the stock ownership of such person or entity.

         The Company's Certificate of Incorporation currently requires the
affirmative vote of at least 75% of the outstanding shares to be voted in order
to approve certain business combinations involving the Company and an interested
stockholder of the Company. Although the Board of Directors presently has no
intention of doing so, shares of authorized but unissued Common Stock could be
issued to a holder who would thereby have sufficient voting power to assure that
any such business combination or amendment to the Restated Certificate of
Incorporation would not receive the 75% stockholder vote required for approval
thereof. The issuance of additional shares of Common Stock may be used to
discourage takeovers that are not approved by the Board but in which
stockholders may receive a substantial premium above market value for some or
all of their shares at the time a tender offer is made. Thus, stockholders who
may wish to participate in such a tender offer may be restricted in their
opportunity to do so. In addition, because the proposed amendment may enable the
Company to discourage tender offers, the amendment may make removal of the Board
of Directors or management more difficult. To the extent that the adoption of
the proposed amendment renders less likely a merger or other transaction opposed
by the Company's incumbent Board of Directors, the effect of such adoption may
be to assist the Board of Directors and management in retaining their current
positions.

BOARD RECOMMENDATION

         THE BOARD OF DIRECTORS RECOMMENDS A VOTE FOR THE PROPOSAL TO AMEND THE
COMPANY'S CERTIFICATE OF INCORPORATION TO INCREASE THE NUMBER OF AUTHORIZED
SHARES OF COMMON STOCK. The

<PAGE>


affirmative vote of a majority of the shares of the Company's Common Stock
present and entitled to vote at the 1997 Annual Meeting is necessary to approve
this Proposal. Proxies will be voted in favor of this Proposal unless otherwise
specified.

                              INDEPENDENT AUDITORS

         Upon recommendation of its Audit Committee, the Board of Directors has
appointed Ernst & Young LLP as independent public accountants to audit the books
and accounts of the Company for the fiscal year ending July 31, 1998, such
appointment to continue at the pleasure of the Board of Directors and subject to
ratification by the stockholders. Ernst & Young LLP has audited the books and
accounts of the Company since 1951. Representatives of Ernst & Young LLP are
expected to be present at the meetin with the opportunity to make a statement
and to respond to appropriate questions. In the event this appointment is not
ratified, the Board will appoint other independent auditors for the subsequent
fiscal year.

         The Board of Directors recommends that stockholders vote FOR
ratification of the appointment of Ernst & Young LLP as independent auditors for
the fiscal year ending July 31, 1998.


                             EXECUTIVE COMPENSATION

         The following table sets forth as to each person who was at the end of
fiscal 1997, the Chief Executive Officer and the other four most-highly
compensated executive officers of the Company information concerning the cash
and noncash compensation for services rendered to the Company for each of the
last three fiscal years (the "Named Officers").


                           SUMMARY COMPENSATION TABLE

<TABLE>
<CAPTION>
                                         ANNUAL COMPENSATION (1)          LONG TERM COMPENSATION
                                         -----------------------   -----------------------------------
                                                                          AWARDS             PAYOUTS
                                                                   ----------------------  -----------
                                                                               SECURITIES
                                                                               UNDERLYING
                                                                                  STOCK
                                                                   RESTRICTED    OPTIONS/
                                                                     STOCK         SARS                    ALL OTHER
                              FISCAL                                AWARD(S)     (SHARES)  LTIP PAYOUTS   COMPENSATION
NAME AND PRINCIPAL POSITION    YEAR      SALARY ($)    BONUS ($)      ($)          (2)       ($)(3)          ($)(4)
- ---------------------------   ------     ---------     ---------   ----------  ----------  ------------   ------------
<S>                           <C>        <C>           <C>         <C>           <C>         <C>           <C>    
WILLIAM G. VAN DYKE            1997       450,000       540,000          0        65,852      525,586       173,520
 Chairman, Chief               1996       385,000       462,000          0        54,362      190,125       121,960
 Executive Officer and         1995       340,692       420,000          0        30,000      136,938       105,227
 President

JAMES R. GIERTZ                1997       199,808       151,639          0        30,680      766,480        61,582
 Senior Vice President and     1996       220,000       181,229    315,625(5)     15,300            0        50,434
 Chief Financial Officer       1995       174,615       165,870          0        25,000            0             0

NICKOLAS PRIADKA               1997       187,808       133,739          0        30,700      186,462        56,340
 Senior Vice President,        1996       169,117       108,165          0        10,300      129,050        37,174
 OEM Engine                    1995       149,616        97,771    108,675(5)     10,000       92,340        34,159

LOWELL F. SCHWAB               1997       168,450       152,491          0        13,237      481,787        56,243
 Senior Vice President,        1996       148,808        88,911          0         8,148            0        32,546
 Operations                    1995       128,340        81,400    108,675(5)      7,200            0        29,018

THOMAS A. WINDFELDT            1997       157,385       115,810          0        11,930      145,996        47,865
 Vice President, Controller    1996       146,346        92,903          0        11,919       98,438        31,768

<PAGE>


 and Treasurer                 1995       131,615        86,742          0         6,660       82,013        30,672

</TABLE>

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

(1)      Includes any portion deferred under the Management Compensation Plan.
(2)      Shares adjusted for stock splits.
(3)      Earned under the Company's 1991 Master Stock Compensation Plan during
         the three-year period ending in the fiscal year in which the payout is
         listed. Payout is made in the form of the Company's common stock and
         delivered during the following fiscal year.
(4)      Amounts in this column represent the dollar value of share allocations
         under the Company's ESOP and benefits in excess of the limits
         established by Section 415 of the Internal Revenue Code contributed by
         the Company to an unqualified supplemental plan. The amounts for fiscal
         1997 are:

         NAME                                  ESOP         ESOP (Supl.)
         ----                                  ----         ------------

         William G. Van Dyke .............  $ 26,269        $ 147,251
         James R. Giertz .................    26,269           35,313
         Nickolas Priadka ................    26,269           30,071
         Lowell F. Schwab ................    26,269           29,974
         Thomas A. Windfeldt .............    26,269           21,596

(5)      Amounts in the Restricted Stock Award column represent the dollar value
         of grants of restricted stock under the Company's 1991 Master Stock
         Compensation Plan. Regular dividends are paid on the restricted shares.
         At the end of fiscal 1997, the number and value of the aggregate
         restricted stockholdings for the Named Officers were: William G. Van
         Dyke, 0, $0; James R. Giertz, 12,500, $507,813; Nickolas Priadka,
         4,200, $170,625; Lowell F. Schwab, 4,200, $170,625; and Thomas A.
         Windfeldt, 0, $0.


                     OPTION/SARS GRANTED IN LAST FISCAL YEAR

<TABLE>
<CAPTION>
                                                                                      POTENTIAL REALIZABLE VALUE AT
                                                                                      ASSUMED ANNUAL RATES OF STOCK
                                                                                      PRICE APPRECIATION FOR OPTION
                                        INDIVIDUAL GRANTS(1)                                     TERM(3)
                            -----------------------------------------                 -----------------------------
                              NUMBER OF     % OF TOTAL
                             SECURITIES    OPTIONS/SARS
                             UNDERLYING     GRANTED TO    EXERCISE
                            OPTIONS/SARS   EMPLOYEES IN    OR BASE     EXPIRATION
                             GRANTED(2)    FISCAL YEAR    PRICE/sh($)     DATE        0%($)     5%($)        10%($)
                            ------------   -------------  -----------  ----------     -----    -------     ---------
<S>                          <C>              <C>          <C>         <C>   <C>       <C>    <C>         <C>      
WILLIAM G. VAN DYKE           39,000           13.2         32.500      12/05/06        0      798,132     2,023,203
                              26,852 (4)        9.1         28.250      12/15/04        0      373,725       900,365

JAMES R. GIERTZ               14,500            4.9         32.500      12/05/06        0      296,741       752,217
                               7,157 (4)        2.4         32.000      12/15/04        0      110,010       263,784
                               4,636 (4)        1.6         38.000      09/08/04        0       74,027       173,407
                               1,235 (4)         .4         38.000      12/15/04        0       20,604        48,622
                               3,152 (4)        1.1         38.000      12/21/05        0       61,381       148,993

NICKOLAS PRIADKA              13,500            4.6         32.500      12/05/06        0      276,276       700,340
                               8,455 (4)        2.9         29.750      12/14/03        0      103,265       240,978
                               8,745 (4)        3.0         29.750      12/15/04        0      125,155       300,184

LOWELL F. SCHWAB              12,000            4.1         32.500      12/05/06        0      245,579       622,524
                                 392 (4)         .1         32.125      07/26/03        0        4,716        10,850
                                 845 (4)         .3         32.125      12/14/03        0       10,865        25,252

THOMAS A. WINDFELDT            6,000            2.0         32.500      12/05/06        0      122,789       311,262
                               5,930 (4)        2.0         28.000      12/15/04        0       81,803       197,077

</TABLE>

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

<PAGE>


(1)      No stock appreciation rights ("SARs") have been granted.

(2)      All grants (other than as noted in footnote (4)) during the period were
         non-qualified stock options granted at the market value on date of
         grant for a term of ten years, vesting in four equal annual
         installments beginning 12/21/97, and were granted with the right to use
         shares in lieu of the exercise price and to satisfy any tax withholding
         obligations.

(3)      These amounts represent certain assumed rates of appreciation over the
         full term of the option. The value ultimately realized, if any, will
         depend on the amount that the market price of the Company's stock
         exceeds the exercise price on date of sale.

(4)      These grants were made to individuals who exercised an option during
         fiscal 1997 and made payment of the purchase price using shares of
         previously owned Company stock. This restoration or "reload" grant is
         for the number of shares equal to the shares used in payment of the
         purchase price or withheld for tax withholding. The option price is
         equal to the market value of the Company's stock on the date of
         exercise and will expire on the same date as the original option which
         was exercised. These options, which are the result of such a
         restoration, do not contain the reload feature.


             AGGREGATED OPTION/SAR EXERCISES IN LAST FISCAL YEAR AND
                        FISCAL YEAR END OPTION/SAR VALUES

<TABLE>
<CAPTION>
                                                           NUMBER OF SECURITIES                VALUE OF UNEXERCISED
                                                          UNDERLYING UNEXERCISED            IN-THE-MONEY OPTIONS/SARS
                                                    OPTIONS/SARS AT FISCAL YEAR-END(2)      AT FISCAL YEAR-END (2)(3)
                                                    ----------------------------------     ----------------------------
                         SHARES         VALUE
                       ACQUIRED ON     REALIZED      EXERCISABLE       UNEXERCISABLE      EXERCISABLE    UNEXERCISABLE
NAME                   EXERCISE (1)      ($)          (SHARES)           (SHARES)             ($)             ($)
- ----                   ------------    --------      -----------       -------------      -----------    -------------
<S>                     <C>            <C>            <C>                 <C>             <C>              <C>    
WILLIAM G.  VAN DYKE     37,500         291,090        236,493             62,625          4,786,058        691,922

JAMES R. GIERTZ          19,340         222,471         20,665             30,975            151,008        373,103

NICKOLAS PRIADKA         20,000         164,370         54,265             21,225            948,603        232,322

LOWELL F. SCHWAB          1,531          18,573         12,079             17,975            203,246        194,384

THOMAS A. WINDFELDT       6,600          37,125         45,677             10,500            936,111        120,188

</TABLE>

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

(1)      The number of shares shown in this column is larger than the number of
         shares actually acquired on exercise. The actual number of shares
         received is reduced by the number of shares delivered in payment of the
         exercise price and shares withheld to cover withholding taxes.

(2)      No SARs were exercised in fiscal 1997.

(3)      This value is based on the difference between the exercise price of
         such options and the closing price of Company Common Stock as of fiscal
         year-end 1997.

<PAGE>


             LONG-TERM INCENTIVE PLANS -- AWARDS IN LAST FISCAL YEAR

<TABLE>
<CAPTION>
                                                                          ESTIMATE FUTURE PAYOUTS
                               NUMBER OF          PERFORMANCES                UNDER NON-STOCK
                             SHARES, UNITS       OR OTHER PERIOD               PRICE-BASED PLAN
                                OR OTHER        UNTIL MATURATION      -----------------------------------
NAME                           RIGHTS(1)           OR PAYOUT          THRESHOLD      TARGET       MAXIMUM
- ----                         -------------      ----------------      ---------      ------       -------
<S>                             <C>            <C>                    <C>           <C>          <C>   
WILLIAM G. VAN DYKE              9,200          8/1/96 - 7/31/99       4,600         9,200        25,300
JAMES R. GIERTZ                  3,100          8/1/96 - 7/31/99       1,550         3,100         8,525
NICKOLAS PRIADKA                 2,900          8/1/96 - 7/31/99       1,450         2,900         7,975
LOWELL F. SCHWAB                 2,600          8/1/96 - 7/31/99       1,300         2,600         7,150
THOMAS A. WINDFELDT              2,150          8/1/96 - 7/31/99       1,075         2,150         5,913

</TABLE>

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

(1)      Awards are of Performance Units, each of which represents the right to
         receive one share of the Company's common stock. Awards are earned only
         if the Company achieves the minimum Performance Objectives and the
         Award Value will be based on a weighting of compound corporate net
         sales growth and after-tax return on investment over the three year
         period. The amounts shown in the table under the headings "Threshold",
         "Target" and "Maximum" are amounts awarded at 50%, 100 and 275% of the
         targeted award. The award may also be adjusted upward by 25% for
         consistency if earnings per share increase in each of the three years
         in the period by at least 5%.

<PAGE>


           HUMAN RESOURCES COMMITTEE REPORT ON EXECUTIVE COMPENSATION

         The Human Resources Committee of the Board of Directors, consisting of
six independent, non- employee directors ("the Committee"), is responsible for
establishing the compensation programs for the Company's executive officers. The
objectives of the Company's executive compensation program are to:

*        attract and retain the best executives available in our industry;

*        motivate and reward executives responsible for attaining the financial
         and strategic objectives essential to the Company's long-term success
         and continued growth in stockholder value;

*        promote a pay-for-performance philosophy by placing significant
         portions of pay at risk and requiring outstanding results for payment
         at the threshold level;

*        obtain an appropriate balance between short-term and long-term results
         based on the executive's influence and impact; and

*        align the interests of executives with those of the Company's
         stockholders by providing a significant portion of compensation in the
         form of Company common stock. Common stock ownership objectives have
         been established for all executive officers ranging from five to ten
         times base salary.

         BASE SALARIES. Base salaries for all executives are reviewed annually
based on performance and market conditions. A performance appraisal is required
for all executives of the Company. The Committee approves and/or determines the
annual base salary increases for all senior executives based on performance of
the executive and external market data. Our objective is that base salaries
should approximate the mid-point (average) of senior executives of manufacturing
companies of similar size in th United States. The Company uses nationally known
consultant surveys for external market data.

         ANNUAL CASH INCENTIVE. Executive officers are eligible for target
awards under the annual incentive program that range up to 60% of base salary.
The size of the target award is determined by the executive officer's position
and competitive data for similar positions at the peer and cross-industry
companies as presented in the same nationally recognized surveys as are used for
the base salary. The Company sets aggressive performance goals and, in keeping
with the strong performance-based philosophy, the resulting awards decrease or
increase substantially if actual Company performance fails to meet or exceeds
targeted levels. Payments can range from 0% to 200% of the target awards.
Executive officers have up to 100% of their annual cash incentive opportunity
linked to achieving record Earnings Per Share (EPS).

         Consequently, executive officers must obtain record EPS, thereby
increasing stockholder value, to receive a competitive annual cash incentive.

         LONG-TERM INCENTIVE COMPENSATION. The Long-Term Performance Award
program is based on three-year compounded growth in net sales at an after-tax
Return on Investment that exceeds the Company's weighted cost of capital. Under
this program, the Committee selected eligible executives and established an
incentive opportunity as a percentage of base salary. In order for a participant
to receive a payout, minimum performance must be attained. Payout for the
1995-1997 cycle is listed in the Compensation Table. The Committee occasionally
grants restricted stock with a fixed restriction period, usually five years, to
insure retention of key executives. The Committee also believes that significant
stock option grants encourage the executive officers to own and hold Donaldson
stock and tie their long- term economic interests directly to those of the
stockholders. Stock options are typically granted annually. In determining the
number of shares covered by such options, the Committee takes into account

<PAGE>


position levels, base salary, and other factors relevant to individual
performance but does not consider the amount and terms of options and restricted
stock already held by the executive.

         STOCK OWNERSHIP. Ownership of Donaldson stock is expected of Donaldson
executives. The Committee believes that linking a significant portion of the
executive's current and potential net worth to the Company's success, as
reflected in the stock price, gives the executive a stake similar to the
stockholders. The Committee has established stock ownership guidelines for the
Named Officers and certain other executive officers, which encourage retention
of shares obtained through the exercise of options. The guidelines range from
five to ten times base salary. The goal of the Chief Executive Officer is ten
times annual base salary. Mr. Van Dyke currently exceeds this ownership goal.

         COMPENSATION OF THE CHIEF EXECUTIVE OFFICER. Mr. Van Dyke's fiscal 1997
base salary and incentive award were determined by the Committee in accordance
with the methodology described above.

                  BASE SALARY. Mr. Van Dyke's base salary for fiscal 1997 was
         $450,000, which approximates the market mid-point for manufacturing
         companies of similar size.

                  ANNUAL BONUS. Mr. Van Dyke's bonus award for fiscal 1997 was
         $540,000. This annual bonus was earned under the annual incentive
         program based on EPS growth of 18.6% over the previous record of $1.67
         earned in fiscal 1996.

                  STOCK OPTIONS. Mr. Van Dyke received the normal grant during
         fiscal 1997 of options to purchase 39,000 shares of stock.

         POLICY ON QUALIFYING COMPENSATION. The Company's policy is to preserve
the tax deduction for compensation paid to its Chief Executive Officer and other
senior executive officers. In accordance with this policy, in November 1994 the
stockholders approved the material terms of the performance goals for payment of
the cash bonus under the Company's Annual Cash Bonus Plan for Designated
Executives.

         CONCLUSION. The executive officer compensation program administered by
the Committee provides incentive to attain strong financial performance and an
alignment with stockholder interests. The Committee believes that the Company's
compensation program focuses the efforts of Company executive officers on the
continued achievement of growth and profitability for the benefit of the
Company's stockholders.

      SUBMITTED BY THE HUMAN RESOURCES COMMITTEE OF THE BOARD OF DIRECTORS

                           Stephen W. Sanger, Chairperson
                           Michael R. Bonsignore
                           Paul B. Burke
                           Jack W. Eugster
                           Kendrick B. Melrose
                           C. Angus Wurtele

                               PERFORMANCE GRAPHS

The following graphs compare the cumulative total stockholder return on the
Company's Common Stock for the last five fiscal years and seven fiscal years
with the cumulative total return of the Standard & Poor's 500 Stock Index and
the Standard & Poor's Index of Manufacturing Companies. The first graph

<PAGE>


assumes the investment of $100 in the Company's Common Stock and each of the
indexes at the market close on fiscal year-end 1992 and the reinvestment of all
dividends. The second graph assumes the investment of $100 in the Company's
Common Stock and each of the indexes at the market close on fiscal year-end 1989
and the reinvestment of all dividends. The Company believes the second graph is
useful in showing the cumulative total stockholder return over the eight year
period of consecutive increases in earnings per share.


                 COMPARISON OF FIVE YEAR CUMULATIVE TOTAL RETURN

                                    [GRAPH]

                           FISCAL YEARS ENDED JULY 31

<TABLE>
<CAPTION>
                        1992         1993         1994         1995         1996         1997
                        ----         ----         ----         ----         ----         ----
<S>                   <C>    
Donaldson             $100.00      $124.19      $165.86      $183.20      $170.61      $285.40
S&P 500                100.00       108.73       114.34       144.19       168.08       255.48
S&P Manufacturing      100.00       113.49       132.02       180.89       214.04       334.70

</TABLE>


                COMPARISON OF EIGHT YEAR CUMULATIVE TOTAL RETURN

                                     [GRAPH]

                         [PLOT POINTS FOR GRAPH TO COME]

                           FISCAL YEARS ENDED JULY 31

<TABLE>
<CAPTION>
                        1989         1990         1991         1992         1993         1994       1995      1996      1997
                        ----         ----         ----         ----         ----         ----       ----      ----      ----
<S>                   <C>    
Donaldson             $100.00       XXXXX        XXXXX        XXXXX        XXXXX        XXXXX      XXXXX     XXXXX     XXXXX
S&P 500                100.00       XXXXX        XXXXX        XXXXX        XXXXX        XXXXX      XXXXX     XXXXX     XXXXX
S&P Manufacturing      100.00       XXXXX        XXXXX        XXXXX        XXXXX        XXXXX      XXXXX     XXXXX     XXXXX

</TABLE>

<PAGE>


                                PENSION BENEFITS

         The Company maintains the Donaldson Company, Inc. Salaried Employees'
Pension Plan (the "Retirement Plan"), which provides benefits for eligible
employees. Through July 31, 1997 the Retirement Plan was structured as a
traditional, defined benefit plan. Effective August 1, 1997, the present value
of accrued benefits under the Retirement Plan was converted to an initial cash
balance.

         Under the cash balance formula, each participant has an account, for
record keeping purposes only, to which credits are allocated each payroll period
based upon the following two percentages: The "Applicable Base Percentage" of
the participant's total compensation in the current pay period ("Pensionable
Earnings") and the "Applicable Excess Percentage" of pensionable earnings in
excess of the Social Security taxable wage base. The applicable percentages are
determined by the age and years of service of the participant with the Company
and its affiliates as of the end of each plan year. The following table shows
the Applicable Base and Excess Percentages used to determined credits at the age
and years of service indicated.

                                                     Applicable Percentage
                                                  --------------------------
          Sum of Age Plus Years of Service        Base                Excess
          --------------------------------        ----                ------

                    Less than 40                  3.0%                  3.0%
                       40 - 49                    4.0                   4.0
                       50 - 59                    5.0                   5.0
                       60 - 69                    6.5                   5.0
                     70 or more                   8.5                   5.0

         As of August 1, 1997 the sum of age plus years of service for Messrs.
Van Dyke, Giertz, Priadka, Schwab and Windfeldt were 76, 43, 78, 65 and 65,
respectively.

         In addition, all balances in the accounts of participants earn a fixed
rate of interest which is credited annually. The interest rate for a particular
plan year is based on the average of the daily one-year U.S. Treasury Note
yields for the previous June plus one percent. For the 1998 fiscal/plan year,
the interest rate if 6.35%.

         At retirement or other termination of employment, an amount equal to
the vested balance then credited to the account is payable to the participant in
the form of an immediate or deferred, lump sum or annuity for the entire benefit
under the Plan.

         The table below sets forth the estimated annual benefit payable to each
of the individuals named in the Summary Compensation Table as a single life
annuity at age 65 under the Retirement Plan and the Donaldson Company Excess
Retirement Plan (the "Excess Retirement Plan"). The Excess Retirement Plan is an
unfunded, non-qualified deferred compensation arrangement that primarily
provides benefits that cannot be payable under a qualified plan like the
Retirement Plan because of the maximum limitations imposed on such plans by the
Code. The projections contained in the table are based on the following
assumptions: (1) employment until age 65 assuming no increase in pensionable
earnings after July 31, 1997; (2) interest credits at the actual rate of 6.35%
for 1998, and an assumed rate of 7% for years thereafter; and (3) the conversion
to a straight life annuity at normal retirement age is based on an interest rate
of 7% and the Unisex 1983 Group Annuity Mortality table.

<PAGE>


                        Retirement Plan and Excess Retirement Plan
               ------------------------------------------------------------
               Executive Officer                  Estimated Annual Benefits
               -----------------                  -------------------------

                 W. Van Dyke                            $   530,170
                 J. Giertz                                  262,280
                 N. Priadka                                 188,815
                 L. Schwab                                  148,487
                 T. Windfeldt                               164,280

         The Company has a supplementary retirement benefit plan which is
intended to assure that Mr. Van Dyke will receive at least 60% of his average
(five highest years) compensation upon retirement at age 65 with 2% reduction
for each year in the event of early retirement after age 55. In determining
whether the plan must supplement other retirement benefits to reach such level,
the Company will consider the benefits described in the previous paragraph, the
Pension Plan Table and footnote (5) to the Summary Compensation Table as well as
50% of primary Social Security and vested pension benefits from prior employers,
if any. Assuming the plan is unchanged and employment until age 65, based on
current compensation and payment levels from other plans, no payments would be
made under the plan.

COMPLIANCE WITH SECTION 16(a) OF THE SECURITIES EXCHANGE ACT OF 1934

         Section 16(a) of the Securities Exchange Act of 1934 requires the
Company's directors and executive officers to file initial reports of ownership
and reports of changes in ownership with the SEC and the New York Stock
Exchange. To the Company's knowledge, based on a review of copies of such forms
and written representations furnished to the Company during fiscal 1996, all
Section 16(a) filing requirements applicable to the Company's directors and
executive officers were satisfied except as follows: Thomas A. Windfeldt, an
executive officer of the Company, donated 135 shares of the Company's Common
Stock in two transactions in October 1996, which gifts should have been timely
reported on a Form 5 and subsequently have been reported on an amended Form 5.

<PAGE>


CHANGE-IN-CONTROL ARRANGEMENTS

         Each of the Named Officers has a severance agreement with the Company
designed to retain the executive and provide for continuity of management in the
event of an actual or threatened change of control in the Company (as defined in
the agreements). The agreements provide that in the event of a change of
control, each key employee would have specific rights and receive certain
benefits if, within three years after a change in control, the employee is
terminated without cause or the employee terminates voluntarily under
"constructive involuntary" circumstances as defined in the agreement. In such
circumstance the employee will receive a severance payment equal to three times
the employee's annual average compensation calculated over the five years
preceding such termination as well as continued health, disability and life
insurance for three years after termination. The 1980 and 1991 Master Stock
Compensation Plans, the supplementary retirement agreements and deferred income
arrangements also provide for immediate vesting or payment in the event of
termination under circumstances of a change in control.


                           1997 STOCKHOLDER PROPOSALS

         In order for stockholders' proposals for the 1997 annual meeting of
stockholders to be eligible for inclusion in the Company's Proxy Statement, they
must be received in writing by submission to the Secretary of the Company at its
principal office in Minneapolis, Minnesota no later than September 20, 1998 and
not prior to August 20, 1998.

                                  OTHER MATTERS

         The Company is not aware of any matter, other than as stated above,
which will or may properly be presented for action at the meeting. If any other
matters properly come before the meeting, it is the intention of the persons
named in the enclosed form of proxy to vote the shares represented by such
proxies in accordance with their best judgment.

                                          By Order of the Board of Directors



                                          Norman C. Linnell
                                          Secretary

October ___, 1997

<PAGE>


DONALDSON COMPANY, INC.

[LOGO] DONALDSON

               PROXY SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

The undersigned hereby appoints William G. Van Dyke and Norman C. Linnell, and
each of them, as proxies, with full power to appoint a substitute, to vote all
shares the undersigned is entitled to vote at the Annual Meeting of Stockholders
of Donaldson Company, Inc. to be held on November 21, 1997, and all adjournments
thereof, to vote as designated on the matters referred to on the reverse side
hereof and, in their discretion, on any other matters properly coming before
said meeting.


                                    Dated: ______________________________, 1996

                                    ___________________________________________

                                    ___________________________________________
                                                     Signatures

                                    (Please sign as name(s) appear on this
                                    proxy. If joint account, each joint owner
                                    should sign. When signing as attorney
                                    attorney, executor, administrator, trustee
                                    guardian or corporate official, give your
                                    full title as such.)

              (Continued from and to be signed on the reverse side)

<PAGE>



THIS PROXY WHEN PROPERLY EXECUTED WILL BE VOTED IN THE MANNER DIRECTED BELOW. IF
NO DIRECTION IS MADE, THIS PROXY WILL BE VOTED FOR PROPOSALS 1, 2 AND 3.

1.       ELECTION OF DIRECTORS. Nominees: J. W. Eugster, W. G. Van Dyke

         [ ]      VOTE FOR all nominees listed above; except vote withheld from
                  following nominees (if any):

         [ ]      WITHHOLD VOTE from all nominees.

2.       AMEND CERTIFICATE OF INCORPORATION TO INCREASE AUTHORIZED SHARES OF
         COMMON STOCK:

                  [ ] FOR          [ ] AGAINST          [ ] ABSTAIN

3.       RATIFY APPOINTMENT OF AUDITORS:

                  [ ] FOR          [ ] AGAINST          [ ] ABSTAIN

4.       IN THEIR DISCRETION upon other matters as may come before the meeting.

                     PLEASE MARK, SIGN, DATE AND RETURN THIS
                   PROXY PROMPTLY USING THE ENCLOSED ENVELOPE



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