SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                  SCHEDULE 13D
                                 (Rule 13d-101)

             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
            TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO
                                  RULE 13d-2(a)
                               (Amendment No.  )(1)


                             Mesa Laboratories, Inc.
--------------------------------------------------------------------------------
                                (Name of Issuer)

                           Common Stock, no par value
--------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   59064R 10 9
--------------------------------------------------------------------------------
                                 (CUSIP Number)


                          Farnam Street Partners, L.P.
                           Farnam Street Capital, Inc.
                       3033 Excelsior Boulevard, Suite 300
                              Minneapolis, MN 55416
                              Phone: (612) 253-6058

                                 With a copy to:
                             Douglas T. Holod, Esq.
                       Maslon Edelman Borman & Brand, LLP
                             3300 Wells Fargo Center
                             90 South Seventh Street
                           Minneapolis, MN 55402-4140
                              Phone: (612) 672-8200
--------------------------------------------------------------------------------
           (Name, Address and Telephone Number of Person Authorized to
                       Receive Notices and Communications)


                                February 24, 2005
--------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)

      If the filing person has previously filed a statement on Schedule 13G to
report the acquisition that is the subject of this Schedule 13D, and is filing
this schedule because of Sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g),
check the following box [ ].

            Note: Schedules filed in paper format shall include a signed
      original and five copies of the schedule, including all exhibits. See
      Section 240.13d-7 for other parties to whom copies are to be sent.

            (1) The remainder of this cover page shall be filled out for a
      reporting person's initial filing on this form with respect to the subject
      class of securities, and for any subsequent amendment containing
      information which would alter disclosures provided in a prior cover page.

      The information required on the remainder of this cover page shall not be
deemed to be "filed" for the purpose of Section 18 of the Securities Exchange
Act of 1934 ("Act") or otherwise subject to the liabilities of that section of
the Act but shall be subject to all other provisions of the Act (however, see
the Notes).






CUSIP No. 59064R 10 9                                                Page 2 of 8
--------------------------------------------------------------------------------
1   NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
    (ENTITIES ONLY)

     Farnam Street Partners, L.P.

--------------------------------------------------------------------------------
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (See Instructions)

(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3   SEC USE ONLY


--------------------------------------------------------------------------------
4   SOURCE OF FUNDS (See Instructions)

    OO (Investment proceeds)
--------------------------------------------------------------------------------
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
    TO ITEMS 2(d) OR 2(e)
     [ ]

--------------------------------------------------------------------------------
6   CITIZENSHIP OR PLACE OF ORGANIZATION

    Minnesota
--------------------------------------------------------------------------------
                7   SOLE VOTING POWER
  NUMBER OF
                    118,514
   SHARES      -----------------------------------------------------------------
                8   SHARED VOTING POWER
BENEFICIALLY
                   0
OWNED BY EACH  -----------------------------------------------------------------
                9   SOLE DISPOSITIVE POWER
  REPORTING
                    118,514
   PERSON      -----------------------------------------------------------------
               10   SHARED DISPOSITIVE POWER
    WITH
                      0
--------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     118,514

-------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES (See Instructions)                                       [ ]

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

        3.9%
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON (See Instructions)

     PN
--------------------------------------------------------------------------------





CUSIP No. 59064R 10 9                                                Page 3 of 8
--------------------------------------------------------------------------------
1   NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
    (ENTITIES ONLY)

     Farnam Street Capital, Inc.
--------------------------------------------------------------------------------
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (See Instructions)

(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3   SEC USE ONLY


--------------------------------------------------------------------------------
4   SOURCE OF FUNDS (See Instructions)

    OO (Investment proceeds)
--------------------------------------------------------------------------------
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
    TO ITEMS 2(d) OR 2(e)
     [ ]

--------------------------------------------------------------------------------
6   CITIZENSHIP OR PLACE OF ORGANIZATION

    Minnesota
--------------------------------------------------------------------------------
                7   SOLE VOTING POWER
  NUMBER OF
                    174,234 (See Explanation in Item 5)
   SHARES      -----------------------------------------------------------------
                8   SHARED VOTING POWER
BENEFICIALLY
                    0
OWNED BY EACH  -----------------------------------------------------------------
                9   SOLE DISPOSITIVE POWER
  REPORTING
                    174,234 (See Explanation in Item 5)
   PERSON      -----------------------------------------------------------------
               10   SHARED DISPOSITIVE POWER
    WITH
                    0
--------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     174,234 (See Explanation in Item 5)
--------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES (See Instructions)                                       [ ]

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

      5.7%      (See Explanation in Item 5)
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON (See Instructions)

     PN
--------------------------------------------------------------------------------





CUSIP No. 59064R 10 9                                                Page 4 of 8
--------------------------------------------------------------------------------
1   NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
    (ENTITIES ONLY)

     Raymond E. Cabillot
--------------------------------------------------------------------------------
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (See Instructions)

(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3   SEC USE ONLY


--------------------------------------------------------------------------------
4   SOURCE OF FUNDS (See Instructions)

    None
--------------------------------------------------------------------------------
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
    TO ITEMS 2(d) OR 2(e)
     [ ]

--------------------------------------------------------------------------------
6   CITIZENSHIP OR PLACE OF ORGANIZATION

    Minnesota
--------------------------------------------------------------------------------
                7   SOLE VOTING POWER
  NUMBER OF
                    0
   SHARES      -----------------------------------------------------------------
                8   SHARED VOTING POWER
BENEFICIALLY
                    174,234
OWNED BY EACH  -----------------------------------------------------------------
                9   SOLE DISPOSITIVE POWER
  REPORTING
                    0
   PERSON      -----------------------------------------------------------------
               10   SHARED DISPOSITIVE POWER
    WITH
                    174,234
--------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     174,234 (See Item 5(b))
--------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES (See Instructions)                                       [ ]

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

         5.7%
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON (See Instructions)

     IN
--------------------------------------------------------------------------------





CUSIP No. 59064R 10 9                                                Page 5 of 8
--------------------------------------------------------------------------------
1   NAMES OF REPORTING PERSONS/I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS
    (ENTITIES ONLY)

     Peter O. Haeg
--------------------------------------------------------------------------------
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
    (See Instructions)

(a) [ ]
(b) [ ]
--------------------------------------------------------------------------------
3   SEC USE ONLY


--------------------------------------------------------------------------------
4   SOURCE OF FUNDS (See Instructions)

    None
--------------------------------------------------------------------------------
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT
    TO ITEMS 2(d) OR 2(e)
    [ ]

--------------------------------------------------------------------------------
6   CITIZENSHIP OR PLACE OF ORGANIZATION

    Minnesota
--------------------------------------------------------------------------------
                7   SOLE VOTING POWER
  NUMBER OF
                    0
   SHARES      -----------------------------------------------------------------
                8   SHARED VOTING POWER
BENEFICIALLY
                    174,234
OWNED BY EACH  -----------------------------------------------------------------
                9   SOLE DISPOSITIVE POWER
  REPORTING
                    0
   PERSON      -----------------------------------------------------------------
               10   SHARED DISPOSITIVE POWER
    WITH
                    174,234
--------------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
     174,234 (See Item 5(b))
--------------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES
     CERTAIN SHARES (See Instructions)                                       [ ]

--------------------------------------------------------------------------------
13   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)

     5.7%
--------------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON (See Instructions)

     IN
--------------------------------------------------------------------------------





ITEM 1.  SECURITY AND ISSUER

This statement relates to the common stock, no par value, of Mesa Laboratories,
Inc., a Colorado corporation ("Winmark" or the "Company" or the "Issuer"). The
address of the Company's principal executive offices is 12100 West Sixth Avenue,
Lakewood, CO 80228.

ITEM 2.  IDENTITY AND BACKGROUND

      (a) This Schedule 13D is being filed by Farnam Street Partners, L.P., a
Minnesota Limited Partnership (the "Fund"), and by its General Partner, Farnam
Street Capital, Inc., a Minnesota corporation ("FSC"). Mr. Raymond E. Cabillot
is Chief Executive Officer and Chief Financial Officer and Mr. Peter O. Haeg is
President and Secretary of FSC. The Fund and FSC are making this filing because
they are the beneficial owner, pursuant to Rule 13d-3 under the Securities
Exchange Act of 1934 (the "Exchange Act"), of more than five percent (5%) of the
outstanding shares of Common Stock of the Issuer.

      (b) The principal office of the Fund, FSC and Messrs. Cabillot and Haeg is
3033 Excelsior Boulevard, Suite 300, Minneapolis, Minnesota 55416.

      (c) The Fund was organized in January 1998 as a Minnesota Limited
Partnership. FSC is a Minnesota corporation. Its principal business activities
involve investing in equity securities of publicly traded companies, as well as
other types of securities.

      (d) - (e) During the last five years, neither the Fund, FSC nor the
principals of its General Partner have been convicted in a criminal proceeding
(excluding traffic violations and similar misdemeanors) nor have the parties
been a party to a civil proceeding of a judicial or administrative body of
competent jurisdiction as a result of which such individual was or is subject to
a judgment, decree, or final order enjoining future violations of, or
prohibiting, or mandating activity subject to, federal or state securities laws
or finding any violation with respect to such laws.

ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

The aggregate purchase price of the purchases identified in response to Item
5(c) was $584,250.16. All such purchases were paid for with investment proceeds
from various limited partnership interests. All securities identified in
response to Item 5(c) were acquired by open market purchases.

ITEM 4.  PURPOSE OF TRANSACTION

All of the shares of the Company owned by the Reporting Person were, at the time
of their purchase, acquired for investment purposes in the ordinary course of
business. FSC makes investments in companies that it believes are undervalued
and represent an attractive investment opportunity. FSC may from time to time
purchase additional shares of the Company's stock or dispose of all or some of
the shares.

Except as set forth in this Item 4, FSC has no present plans or proposal that
relates to or would result in any of the actions specified in clauses (a)
through (j) of Item 4 of Schedule 13D. FSC intends to review its investment in
the Issuer on a continuing basis and, depending on various factors, including,
without limitation, the Issuer's financial position and investment strategy, the
price levels of the common stock, conditions in the securities markets,
conditions in the industry and general economic conditions, may in the future
take such actions with respect to its investment in the Issuer as it deems
appropriate including, without limitation, purchasing additional shares of
common stock or selling some or all of its shares or to change its intention
with respect to any and all matters to in Item 4.





ITEM 5.  INTEREST IN THE SECURITIES OF THE ISSUER

      (a) FSC manages the Fund and a separate account which together
beneficially own 174,234 shares of common stock of the Issuer, representing 5.7%
of the shares outstanding. The Fund beneficially owns 118,514 shares of the
outstanding Common Stock of the Issuer, representing approximately 3.9% of the
Common Stock (based upon 3,045,527 shares outstanding on December 31, 2004, as
reported in the Issuer's most recent 10-Q filed on February 14, 2005).

      (b) The Fund does not share voting and dispositive power with respect to
any shares. However, Messrs. Cabillot and Haeg, as officers of FSC, may be
deemed to have beneficial ownership of the shares reported in this Schedule 13D
by virtue of their shared voting and dispositive power. However, they disclaim
beneficial ownership and have no direct pecuniary interest in the shares.

      (c) TRANSACTIONS WITHIN THE LAST 60 DAYS OR SINCE THE LAST FILING.

            The following purchases took place within the last 60 days:



                       No. of      Price per
 Trade Date            Shares        share
--------------------------------------------
                             
    1/13/2005            850       $11.7953
    1/20/2005            800       $12.1463
     2/3/2005            500       $12.1500
     2/7/2005          2,300       $12.0904
     2/8/2005          1,100       $12.1200
     2/9/2005            500       $12.1500
    2/11/2005          3,600       $12.5393
    2/14/2005            800       $12.6000
    2/16/2005          4,000       $12.5508
    2/17/2005          2,000       $12.4100
    2/22/2005          4,200       $12.2314
    2/23/2005          3,000       $12.2333
    2/24/2005         19,300       $12.0340
    2/25/2005          3,200       $12.3611
     3/1/2005          1,000       $12.3290
     3/2/2005            700       $12.5143

               The following sale took place in the last 60 days:



                      No. of       Price per
 Trade Date           Shares         share
--------------------------------------------
                             
    1/25/2005          1,000       $13.0500



      (d) Not applicable.

      (e) Not applicable.


ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS WITH RESPECT TO
         SECURITIES OF THE ISSUER

      There are no contracts, arrangements, understandings or relationships
between the Fund or FSC, on one hand, and any other person with respect to any
securities of the Issuer on the other hand.

ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

         None





                                    SIGNATURE

         After reasonable inquiry and to the best of my knowledge and belief, we
certify that the information set forth in this statement is true, complete and
correct.


Dated: March 3, 2005                     FARNAM STREET PARTNERS, L.P.
                                         BY: FARNAM STREET CAPITAL, INC.,
                                                General Partner



                                         By:  /s/ Raymond E. Cabillot
                                             -----------------------------------
                                                      Raymond E. Cabillot,
                                                      Chief Executive Officer


                                         By:  /s/ Peter O. Haeg
                                             -----------------------------------
                                                      Peter O. Haeg,
                                                      President



                                              /s/ Raymond E. Cabillot
                                         ---------------------------------------
                                         RAYMOND E. CABILLOT



                                              /s/ Peter O. Haeg
                                         ---------------------------------------
                                         PETER O. HAEG