MINNESOTA MINING & MANUFACTURING CO
SC 13D, 1996-06-06
ABRASIVE, ASBESTOS & MISC NONMETALLIC MINERAL PRODS
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                          UNITED STATES
               SECURITIES AND EXCHANGE COMMISSION
                     WASHINGTON, D.C.  20549
                                
                          SCHEDULE 13D
                                
            UNDER THE SECURITIES EXCHANGE ACT OF 1934
                                
                        (AMENDMENT NO. 3)
                                
                           HEARx, Ltd.
- ----------------------------------------------------------------
                        (Name of Issuer)
                                
                          Common Stock
- ----------------------------------------------------------------
                   (Title Class of Securities)
                                
                             4223601
- ----------------------------------------------------------------
                         (CUSIP Number)
                        Gregg M. Larson,
                    Assistant General Counsel
           Minnesota Mining and Manufacturing Company
                            3M Center
                     Minneapolis, MN  55144
                         (612) 733-2204
- ----------------------------------------------------------------
  (Name, Address and Telephone Number of Person Authorized to
             Receive Notices and Communications)
                         March 15, 1996
- ----------------------------------------------------------------
     (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 which is the subject of this
Schedule 13D, and is filing this schedule because of Rule 13d-
1(b)(3) or (4), check the following box [ ].

Check the following box if a fee is being paid with the statement
[ ].   (A fee is not required only if the reporting person: (1)
has a previous statement on file reporting beneficial ownership
of more than five percent of the class of securities described in
Item 1; and (2) has filed no amendment subsequent thereto
reporting beneficial ownership of five percent or less of such
class.)  (See Rule 13d-7.)

* 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).
                              
                              1 of 8
                                                 SEC 1746 (12-91)
                              
                          SCHEDULE 13D

CUSIP No.    4223601                         Page  2  of  8  Pages
          ----------                              ---    ---
                                
1   NAME OF REPORTING PERSON
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
      MINNESOTA MINING AND MANUFACTURING COMPANY   41-0417775
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*         (a) [ ]   (b)[ ]

3   SEC USE ONLY

4   SOURCE OF FUNDS*

       WC
5   CHECK BOX IF DISCLOSURE IF LEGAL PROCEEDINGS IS REQUIRED
      PURSUANT TO ITEMS 2(d) or 2(e)

6 CITIZENSHIP OR PLACE OF ORGANIZATION
                                
      DELAWARE

 NUMBER   7   SOLE VOTING POWER
   OF     
 SHARES            10,782,400
 BENEFI   8   SHARED VOTING POWER
 CIALLY
 OWNED             0
BY EACH   9   SOLE DISPOSITIVE POWER
REPORT-   
 ING               10,782,400
PERSON   10   SHARED DISPOSITIVE POWER
 WITH
                   0
11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
                                
      10,782,400
12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*  [ ]

13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
      15.9%
14 TYPE OF REPORTING PERSON*
                                
      CO
                                
                             2 of 8
                                                 SEC 1746 (12-91)
                                
     This Amendment No. 3 amends and supplements the Schedule 13D
("Schedule 13D") and Amendment Nos. 1 and 2, relating to the
common stock, par value $0.10 per share (the "Common Stock"), of
HEARx Ltd., a Delaware Corporation (the "Company"), previously
filed by Minnesota Mining and Manufacturing Company, a Delaware
corporation ("3M").

                           *    *    *

Item 1 is hereby amended as follows:
ITEM 1.  SECURITY AND ISSUER

     This statement relates to the Common Stock of HEARx, Ltd.,
with principal executive offices located at 471 Spencer Drive,
West Palm Beach, FL  33409.

     On March 15, 1996, the Company listed its stock on the
American Stock Exchange.  As a result of the listing, the
preferred stock of the Company, and the warrants and options to
purchase preferred stock of the Company, then held by 3M,
automatically converted to Common Stock (or options or warrants
to acquire Common Stock).



Item 2 is hereby amended to add the following information:
ITEM 2.  IDENTITY AND BACKGROUND

RESPONSES TO QUESTIONS (A), (B) AND (C) ARE AS FOLLOWS:

     MINNESOTA MINING AND MANUFACTURING COMPANY ("3M") is a
     Delaware corporation, with its principal business located at
     3M Center, St. Paul, MN  55144.  3M is an integrated
     enterprise characterized by substantial interdivision and
     intersector cooperation in research, manufacturing and
     marketing of products incorporating similar component
     materials manufactured at common internal sources.

     The EXECUTIVE OFFICERS OF 3M, each located at 3M's principal
     business address, 3M Center, St. Paul, MN  55144, are as
     follows:

          Livio D. DeSimone (also a Director of 3M), Chairman of
          the Board and Chief Executive Officer of 3M
          
          Ronald A. Mitsch (also a Director of 3M), Vice Chairman
          of the Board and Executive Vice President, Industrial
          and Consumer Sector and Corporate Services
          
                             3 of 8
                                
          J. Marc Adam, Vice President, Marketing
          
          Giulio Agostini, Senior Vice President, Finance and
          Office Administration
          
          Ronald O. Baukol (also a Director of 3M), Executive
          Vice President, International Operations
          
          William E. Coyne, Senior Vice President, Research and
          Development
          
          Lawrence E. Eaton, Executive Vice President
          
          Charles E. Kiester, Senior Vice President, Engineering,
          Quality and Manufacturing Services
          
          Richard A. Lidstad, Vice President, Human Resources
          
          W. George Meredith (also a Director of 3M), Executive
          Vice President, Life Sciences Sector and Corporate
          Services
          
          John J. Ursu, Vice President, Legal Affairs and General
          Counsel
          
     The DIRECTORS OF 3M (in addition to those listed above) are
     listed below, with their present principal occupations and
     addresses:
     
          Edward A. Brennan
          Retired Chairman of the Board, President and CEO,
          Sears, Roebuck and Co.
          400 North Michigan Avenue, Suite 400
          Chicago, Illinois  60611
     
          Allen F. Jacobson
          Director of various companies
          3050 Minnesota World Trade Center
          30 East 7th Street
          St. Paul, Minnesota  55101
     
          Allen E. Murray
          Retired Chairman of the Board and Chief Executive Officer,
          Mobil Corporation
          P.O. Box 2072
          New York, New York  10163
     
                             4 of 8
                                
          Aulana L. Peters
          Partner in the law firm
          Gibson, Dunn & Crutcher, LLP
          333 South Grand Avenue
          Los Angeles, California  90071-3197
     
          Rozanne L. Ridgway
          Co-Chair, The Atlantic Council of the United States
          10th Floor
          910 17th Street
          Washington, D.C.  20006
     
          Frank Shrontz
          Chairman of the Board, The Boeing Company
          P.O. Box 3707
          MS 10-21
          Seattle, Washington  98124-2207
     
          F. Alan Smith
          Retired Executive Vice President and Director,
          General Motors Corporation
          674 Franklyn Avenue
          Indialantic, Florida  32903
     
          Louis W. Sullivan, M.D.
          President, Morehouse School of Medicine
          720 Westview Drive, S.W.
          Atlanta, Georgia  30310-1495
     
     ITEMS (D), (E) AND (F) APPLY TO ALL PERSONS LISTED IN ITEM 2 ABOVE.

     (d)  Neither 3M nor any of the persons named above have,
     during the last five years, been convicted in a criminal
     proceeding (excluding traffic violations or similar
     misdemeanors).
     
     (e)  Neither 3M nor any of the persons named above have been
     a party to a civil proceeding of a judicial or
     administrative body of competent jurisdiction and as a
     result of such proceeding was or is subject to a judgment,
     decree or final order enjoining future violations of, or
     prohibiting or mandating activities subject to, federal or
     state securities laws or finding any violation with respect
     to such laws.
     
     (f)  All of the natural persons named above are citizens of
     the U.S.
     
     
     
                             5 of 8
                                
Item 3 is hereby amended to add the following information:
ITEM 3.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION

     During November - December 1993 and January 1994, 3M loaned
$400,000 to the Company, the conversion of which formed the
consideration for the issuance of Senior Preferred Stock, Series
E, par value $1.00 per share ("Series E Stock"), pursuant to an
Option to Purchase dated May 15, 1992.  On May 1, 1995, the
Company agreed to the issuance of shares of Series E Stock in
consideration for such $400,000, with the actual number of shares
to be determined pursuant to a formula.  By Letter Agreement
dated December 21, 1995, the Company agreed to the issuance of
shares at an issue price of $61.80 per share of Series E Stock
($.618 per share of Common Stock).  On January 26, 1996, 6,472
shares of Series E Stock were issued to 3M, and are reported
herein on this Amendment No. 3.  The shares of Series E Stock
were convertible into shares of Common Stock at a ratio of 1:100,
and converted into 647,200 shares of Common Stock, upon the
listing of the Company's Common Stock on the American Stock
Exchange on March 15, 1996.


Item 4 is hereby amended to add the following information:
ITEM 4.  PURPOSE OF TRANSACTION

     As stated in the Schedule 13D filed on January 2, 1992, 3M
initially invested in the stock of the Company in order to
promote 3M's interest in having the Company market and distribute
3M's hearing aid products in the United States.  3M is now in the
process of divesting itself of its Hearing Health business, which
produces hearing aid devices.  3M intends to evaluate the
possibility of selling all or, from time to time, portions of the
Common Stock held by it.  In determining whether to sell its
shares of Common Stock, 3M may consider various factors,
including the status of 3M's divestiture of its Hearing Health
business, the Company's financial condition, other developments
concerning the Company, the market for the shares, including the
demand for the purchase of shares at particular price levels, and
general economic, financial market and industry conditions.  Any
and all sales might be made in market transactions, privately
negotiated sales or in registered public offerings.


Item 5 is hereby amended to add the following information:
ITEM 5.  INTEREST IN SECURITIES OF THE ISSUER

     (a)  3M beneficially owns 10,782,400 shares of Common Stock
of the Company as of the date of this Amendment No. 3,
representing an aggregate of approximately 15.9% of the
outstanding shares of the Company (based upon 65,909,183 shares
of the Company's Common Stock outstanding as of March 29, 1996,
as disclosed in the
                                
                                
                             6 of 8
                                
Company's Form 10-Q for the quarterly period ended March 29,
1996.)

     (b)  3M possesses the sole power to vote or dispose of the
securities described above.

     (c)  No transactions in the Common Stock were effected
during the past sixty days by the persons named in paragraph (a)
above.

     (d)  No other person is known to have the right to receive
or the power to direct the receipt of dividends from, or the
proceeds from the sale of such securities other than 3M.

     (e)  N/A.


Item 6 is hereby amended to add the following information:
ITEM 6.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS
WITH RESPECT TO SECURITIES OF THE ISSUER.

     Pursuant to a Letter Agreement dated November 19, 1993, 
an Agreement dated May 1, 1995, Stock Purchase Agreement 
dated July 24, 1995, Letter Agreement dated December 21, 
1995, and letter from HEARx, Ltd. to 3M, dated January 26, 
1996, 3M acquired 6,472 shares of Series E Stock, $1 par 
value of the Company upon the conversion of a $400,000 loan 
previously made by 3M to the Company from 3M's working 
capital.  The Company provided demand and incidental 
registration rights in connection with such securities, the 
terms of which are specified in the Stock Purchase Agreement 
dated July 24, 1995, a copy of which is filed as an exhibit 
hereto and is hereby incorporated by reference herein.


Item 7 is hereby amended to provide the following information:
ITEM 7.  MATERIAL TO BE FILED AS EXHIBITS

     The copies of the five (5) documents referenced in Item 6
above are attached hereto as Exhibits:
     1.      Letter Agreement, dated November 19, 1993
     2.      3M - HEARx Agreement, dated May 1, 1995
     3.      Stock Purchase Agreement, dated as of July 24, 
             1995
     4.      Letter Agreement, dated December 21, 1995
     5.      Letter from HEARx Ltd. to 3M, dated January 26, 
             1996, conveying stock certificate for 6,472 shares 
             of Senior Preferred Stock, Series E
                                
                             7 of 8
                                
                            SIGNATURE


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

                                   MINNESOTA MINING AND
                                   MANUFACTURING COMPANY

June    , 1996                     ------------------------------
                                        Signature

                                    /s/ Roger P. Smith
                                   ------------------------------
                                        Roger P. Smith,
                                        Corporate Secretary

November 19, 1993

                                                          3M LOGO

Dr. Paul A. Brown
Chairman and CEO
HEARx, Ltd.
2000 Palm Beach Lakes Boulevard Suite 100
West Palm Beach, Florida 33409


Subject: Letter Agreement between 3M and HEARx
         --------------------------------------

Dear Dr. Brown:

This letter agreement dated November 19, 1993 will set forth and
confirm the understanding that we have with you relative to our
exercise of the options for the Senior Preferred Stock Series E
for One Million Dollars ($1,000,000), exercisable on or before
December 31, 1994.  To the extent that any of the terms and
conditions contained herein covers the same subject matter as
contained in any of the series of other agreements executed
between the parties, including but not limited to the option to
Purchase Agreement, the Exhibits and Amendments related thereto
(collectively referred to as the "Agreement"), the later
agreement in time shall take precedence over the former.  In
consideration of 3M's exercise of its option for the Stock Series
E, 3M and HEARx hereby agree to the following terms and
conditions set forth herein:

1.   As consideration for its purchase of the Series E HEARx
     stock, 3M agrees to provide the following monies to HEARx:

     (a)  One Hundred Fifty Thousand Dollars ($150,000) in cash
          payable on November 19, 1993.  Following the initiation
          of the implementation of a cost reduction plan noted in
          2(c), 3M shall make available up to an additional Two
          Hundred Fifty Thousand Dollars ($250,000.00) on HEARx
          request.

     (b)  The balance shall be payable in cash and/or a fifty
          percent (50%) reduction in the amounts of future
          payables owed to 3M.  The amounts in this subparagraph
          (b) are payable at 3M's sole discretion and are subject
          to 3M's continued satisfaction of cost reduction
          implementation and ongoing operating results.

2.   The obligation of 3M to purchase the Stock Series E is
     subject to the following conditions:

     (a)  HEARx shall have completed its additional financing of
          not less than Five Million Dollars ($5,000,000).

     (b)  The Stock Series E shall have no less favorable price,
          rights and preferences than any financing transaction
          between HEARx and an investor contemplated in the
          current round of financing.  For references purposes
          only, HEARx has provided 3M with the attached Exhibit A
          as an example of terms presently under consideration
          for extension to a prospective investor.

     (c)  HEARx shall immediately implement cost reduction
          programs in the amount of approximately Four Hundred
          Eighty Thousand Dollars ($480,000) on an annualized
          basis, which will include the ____________ .Equipment
          Business (SID).  HEARx shall provide to 3M an operational
          plan of this strategy and action would need to occur
          prior to release of funds subsequent to the initial One
          Hundred Fifty Thousand Dollars ($150,000).  This plan
          for aggressive implementation of - more than One
          Million Dollars ($1,000,000.00) in annualized cost
          reduction is consistent with the agreements between
          HEARx and Alpine Partners.

     (d)  HEARx shall hire an experienced, retail person
          (previously identified) to be given-the responsibility
          and authority to implement the cost reduction programs
          and strengthen the operational linkage to 3M.

     (e)  HEARx shall not be delinquent on 3M's accounts.

     (f)  3M shall continue to maintain its right of first
          refusal on making additional investments at the same
          price and rights as the most favorable financing in
          this round so as not to dilute 3M's existing equity
          position.

3.   In the event HEARx fails to adhere to the terms and
     conditions set forth herein, HEARx agrees to execute a
     Promissory Note on behalf of 3M for any amounts rendered
     pursuant to this Letter Agreement.

4.   HEARx, at the request of 3M, agrees to do, make, execute,
     acknowledge and deliver all such other and further acts and
     instruments of conveyance, assignment, and transfer as 3M
     may require for the more effective conveyance and transfer
     of the Stock Series E and or any promissory notes due
     hereunder.

5.   3M reserves the right to hold a seat on HEARx Board of
     Directors; said right shall be exercised at 3M's sole
     discretion.

6.   All other terms, conditions, rights and preferences as set
     forth in the Agreement shall continue except as provided
     herein.

If the foregoing meets with the approval of HEARx, kindly so
indicate by signing and returning the enclosed duplicate copy of
this letter, whereupon this letter shall constitute a binding
Letter Agreement between the parties in accordance with the terms
and provisions set forth-above.  This letter may be executed in
counterparts which together will constitute one document.

We look forward to receiving your response today.

MINNESOTA MINING AND
MANUFACTURING COMPANY


By:   /s/ Paul D. Rosso
     --------------------
Its:  Business Manager
     --------------------

Acknowledged this 19th day of
November, 1993.

HEARx, LTD.


By:   /s/ Paul A. Brown
     --------------------
Its:  Chairman
     --------------------

<TABLE>
                                                         EARDEL.XLS
<CAPTION>
          DEAL STRUCTURE PROPOSAL I                          PROJECT EARS
- ---------------------------------------------------------------------------------------------------------------------------------
PORTION   AMOUNT           DRAWDOWN             EXPECTED                    TERMS               OWNERS          WARRANTS
- ---------------------------------------------------------------------------------------------------------------------------------
<S>     <C>         <C>                      <C>           <C>                                  <C>     <C>
   A    $US 2.0mlo. at closing                             Conv. Pref. Shares under Rule 144                 2,000,000 warrants
- ---------------------------------------------------------------------------------------------------------------------------------
                    agreem. to OTC listed                  at $US 0.60 p.Sh.=Net95 $US 1.6 mlo. 7.69%   10 years
- ---------------------------------------------------------------------------------------------------------------------------------
                    as soon as elegible                    at $US 0.30 p.Sh.=Net95 $US 0.0 mlo. 14.29%  
- ---------------------------------------------------------------------------------------------------------------------------------
   B    $US 2.0mlo. first quarter Cash Flow  III. Quart.94 discount 30% to market               4.86%   666,666 warrants at $0.
- ---------------------------------------------------------------------------------------------------------------------------------
                    positive                                                                            If drawdown target mo
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                        co. takes other cap. so
- ---------------------------------------------------------------------------------------------------------------------------------
   C    $US 2.0mlo. first quarter EBIT       IV. Quart.94  discount 20% to market               4.04%   666,666 warrants at $1
- ---------------------------------------------------------------------------------------------------------------------------------
                    break down                                                                          If drawdown target me
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                        co. takes other cap. so
- ---------------------------------------------------------------------------------------------------------------------------------
   D    $US 2.0mlo. first quarter NET        I. Quart.95   discount 10% to market               3.46%   666,666 warrants at $1.
- ---------------------------------------------------------------------------------------------------------------------------------
                    break down                                                                          If drawdown target me
- ---------------------------------------------------------------------------------------------------------------------------------
                                                                                                        co. takes other cap. so
- ---------------------------------------------------------------------------------------------------------------------------------
</TABLE>

                           3M - HEARx
                            Agreement
                           May 1, 1995
                                
                                
HEARx, Ltd. admits that it currently owes to 3M $808,000 for
product 3M delivered to HEARx prior to this agreement, but which
HEARx did not pay for, and that amount is currently due and
payable, and not subject to any set-off or counterclaim.

In addition, 3M loaned to HEARx $400,000 with the understanding
that HEARx would find another investor to purchase its common
stock.  HEARx then was to convert the $400,000 debt to equity.
Unfortunately, HEARx has not been able to find such an investor.

This agreement provides the terms and conditions by which 3M will
agree not to demand immediate payment of the $808,000 HEARx owes
3M and by which the $400,000 loan will be converted to equity.

     1.   HEARx will convert the $400,000 loan to HEARx preferred
          stock convertible into common stock at $0.85 per share,
          pursuant to a separate stock purchase agreement.  HEARx
          will deliver the stock certificates to 3M within 30
          days after this agreement is signed.
          
          Failure to deliver the certificates or to other breach
          of stock purchase agreement are material breaches of
          this agreement, and all obligations ($808,000 plus
          $400,000) will be immediately due and payable, in
          addition to the remedies described in paragraph 4.E.
          
     2.   Nonexclusive distributor.
          HEARx will no longer be the exclusive dispenser of 3M
          products in its territory.  3M may sell to any customer
          or dispenser in the territory.  This modifies the
          Second Amended Distribution and Supply Agreement, dated
          June 28, 1993, between HEARx and 3M.
          
     3.   HEARx will pay to 3M $208,000 by December 12, 1995.
          HEARx may make partial payments prior to that date.  3M
          will set-off credits to HEARx against the $208,000
          debt.
          
          HEARx will pay interest on the balance existing on the
          first day of each month at the rate of 1% per month.
          The interest will accrue each month and will be due and
          payable on December 12, 1995.  HEARx may prepay any
          interest that has accrued.
          
          The $208,000 will be applied against the $808,000 which
          is currently due.  The interest will not be applied
          against that amount.
          
          Failure to make these payments is a material breach of
          this agreement, and all obligations will be immediately
          due and payable, in addition to the remedies described
          in paragraph 4.E.
          
     4.   After making the payment described paragraph 3, HEARx
          will owe 3M $600,000, without any right to set-off or
          counterclaim. This amount is immediately due and
          payable, but 3M will not demand payment until January
          31, 1999, provided that complies with the following
          terms and conditions:
          
          A.   Minimum total purchases.
               HEARx will purchase an additional 26,000 hearing
               aid units (net of returns) from 3M by December 31,
               1998.
               
          B.   Minimum annual purchases.
               HEARx will purchase a minimum of 3,200 units (net
               of returns) in 1995, and 4,800 units (net of
               returns) in each additional calendar year.  (Note:
               to reach 26,000 units, HEARx would have to
               purchase 6,500 units per year.)
               
               1.   If HEARx fails to purchase 3,200 units in
                    1995 or 4,800 units (net of returns) in a
                    subsequent year, it may avoid breaching this
                    condition by paying to 3M a lump sum equal to
                    the difference between 3,200 in 1995 or 4,800
                    in subsequent years and the net number of
                    units it purchased during the calendar year
                    multiplied by the charge described in 4.B.2.
                    
               2.   The charge will increase each year.  The year
                    below is the year in which HEARx fails to
                    purchase its minimum:
                    
                              1995: $23/unit
                              1996: 26/unit
                              1997: 29/unit
                              1999: 33/unit
                              
               3.   HEARx must make the lump sum payment by
                    January 31 of the following year.  The lump
                    sum payment will be in addition to HEARx's
                    obligation; it will not reduce the
                    obligation.
                    
          C.   Conversion of debt to equity.
               For every 5,200 units HEARx purchases from 3M (net
               of returns), $120,000 of the HEARx's debt will be
               converted to HEARx preferred stock convertible
               into common stock at $0.85 per share pursuant to a
               separate stock purchase agreement reducing HEARx's
               obligation by $120,000.  3M will notify that it
               purchased 5,200 units.
               
               HEARx stock certificates will be delivered to 3M
               within 30 days after 3M gives notice.
               
               Failure to deliver the certificates or other
               breach of stock purchase agreement are breaches of
               this agreement, and all obligations will be
               immediately due and payable, in addition to the
               remedies described in paragraph 4.E and 4.F.
               
               HEARx must purchase 26,000 units by December 31,
               1998, to convert all of the debt to equity.
               
          D.   Purchases.
               1.   Prices.
                    A.   Conventional units
                         HEARx will purchase conventional units
                         at the prices and terms and conditions
                         stated in Exhibit A.  3M may increase
                         prices once per year, by no more than
                         the increase of the producer's price
                         index for Surgical,  Medical & Dental
                         Instruments for the previous year of 5%,
                         whichever is less.
                         
                    B.   Other units (e.g., programmable)
                         HEARx will purchase other units at the
                         prices and terms and conditions stated
                         in 3M's price pages current at the time
                         of HEARx's order.
                         
               2.   Payment is due net 30 days from the end of
                    the month in which the aid was shipped from
                    3M.
                    
               3.   'Net purchases' are HEARx's purchases of 3M
                    hearing aid units less its returns during
                    each year of this agreement.
                    
          E.   Breach of 4.B.
               If HEARx fails to purchase 3,200 units during 1995
               or 4,800 units in 1996 or 1997 and fails to pay
               the lump sum described in 4.B by January 31 of the
               next year, the amount remaining of its obligation
               plus the difference between 26,000 units and the
               total net purchases made by HEARx multiplied by
               the charge stated in 4.B.2 will be immediately due
               and payable.
               
          F.   Payment of the obligation at the end of this
          agreement.
               If HEARx fails to purchase 26,000 units by
               December 31, 1998, the amount remaining of its
               obligation plus the difference between 26,000
               units and the total net purchases made by HEARx
               multiplied by $33 will be immediately due and
               payable.
               
          G.   Timely payment of current accounts.
               HEARx will pay all current accounts within 30 days
               after the date of the invoice. (See paragraph
               4.D). If HEARx fails to make any payment on time,
               it will be in breach of this agreement, and all
               obligations will be immediately due and payable,
               including the applicable lump sum described in 4.E
               and 4.F.
               
               3M will give seven days notice to make payment the
               first time HEARx fails to make its payment on
               time.  3M will not give notice on subsequent
               failures.
               
     6.   Taxes.
          HEARx is responsible for paying all taxes applicable to
          this agreement, for example, the Florida documentary
          stamp tax, if applicable.
          
     7.   Dispute Resolution.
          This agreement is made in Minnesota, and Minnesota law
          will apply.  All litigation relating to this agreement
          will be commenced in Minnesota.  HEARx agrees to the
          jurisdiction of Minnesota courts.  HEARx and 3M waive
          their right to a jury trial.
          
     8.   Complete Agreement.
          This is the complete agreement regarding these issues.
          It supersedes all previous agreements.  It may be
          modified only by written agreement.
          
          
MINNESOTA MINING AND                    HEARx Ltd.
MANUFACTURING COMPANY


By: /s/ G.J. Sabongi                    By: /s/ Paul Brown
  G. J. Sabongi, Ph.D.                    Paul Brown, M.D.
  Business Manager                        Chairman



                    STOCK PURCHASE AGREEMENT
                                
                                
                                
                         by and between
                                
                                
                                
           MINNESOTA MINING AND MANUFACTURING COMPANY
                                
                                
                                
                               and
                                
                                
                                
                           HEARx LTD.
                                
                                
                                
                                
                    Dated as of July 24, 1995



                    STOCK PURCHASE AGREEMENT
                    ------------------------

     THIS STOCK PURCHASE AGREEMENT ("Agreement") dated as of July

__, 1995, by and between MINNESOTA MINING AND MANUFACTURING

COMPANY ("Purchaser"), a Delaware corporation having its

principal office at 3M Center, St. Paul, Minnesota 55144, and

HEARx LTD., a Delaware corporation ("Company"), having its

principal office at 471 Spencer Drive, West Palm Beach, Florida

33409.
                                

                            RECITALS
                            --------
                                
     The Company and Purchaser agreed, pursuant to their

Agreement dated May 1, 1995, to apply $400,000.00 of debt which

Company owes to Purchaser to the purchase of Senior Preferred

Stock, Series E, of the Company, at $85.00 per share, for a total

of 4,706 shares.

     NOW, THEREFORE, in consideration of the mutual covenants,

agreements, representations and ties contained herein, the

Company and Purchaser agree as follows:
                                

                            ARTICLE I
                            ---------
                   PURCHASE AND SALE OF STOCK
                   --------------------------
                                
     1.1  PURCHASE AND SALE OF STOCK.  Subject to the terms and

conditions of this Agreement, Purchaser hereby purchases 4,706

shares of Senior Preferred Stock, Series E of the Company, par

value $1.00 per share ("Senior E Preferred") for a total purchase

price of $400,000.00. The Senior E Preferred shall have the voting

powers, preferences, rights, limitations and restrictions

contained in the Certificate of Designations, Preferences and

Rights, a copy of which is attached hereto as Exhibit "A," and

whose terms and conditions shall be at least as favorable as

those offered to other holders of preferred shares

     1.2  PURCHASE PRICE.  The Company hereby acknowledges

receipt of such $400,000.00.
                                

                           ARTICLE II
                           ----------
          REPRESENTATIONS AND WARRANTIES OF THE COMPANY
          ---------------------------------------------
                                
     2.1  ORGANIZATION.  The Company is a corporation duly

organized, validly existing and in good standing under the laws

of the State of Delaware.

     2.2  AUTHORIZATION.  The Company has full power and

authority to enter into this Agreement and to carry out the

transactions contemplated hereby.  Except as provided in Article

V hereof, the Company has taken all action required by law, its

Certificate of Incorporation and Bylaws, or otherwise, to

authorize the execution and delivery of this Agreement and the

transactions contemplated hereby, and this Agreement is a valid

and binding obligation of the Company enforceable in accordance

with its terms, except as such enforcement may be limited under

principles of equity or the availability of equitable remedies,

such as specific performance, injunctive relief or waiver.

     2.3  CONSENTS AND APPROVALS.  Except as provided in Article

V hereof no consent, approval or authorization of, or

declaration, filing or registration with, any governmental or

regulatory authority, is required in connection with the

examinations delivery and performance of this Agreement by the

Company and the consummation of the transactions contemplated

hereby.
                                

                           ARTICLE III
                           -----------
           REPRESENTATIONS AND WARRANTIES OF PURCHASER
           -------------------------------------------
                                
     Purchaser represents and to the Company as follows:

     3.1  INVESTMENT REPRESENTATION.  Purchaser is requiring the

Senior E Preferred solely for its own account and not with a view

to the distribution thereof except in conformity with the

Securities Act of 1933, as amended ("Act").  Purchaser

understands that the shares of Senior E Preferred and shares of

Common Stock, par value $.01 per share ("Common Stock") of the

Company which may be issuable upon conversion of the shares of

Senior E Preferred have not been registered under the Act or any

applicable state securities laws and may not be sold or

transferred except in compliance with such laws and the

certificates evidencing the shares of Senior E Preferred will

bear an appropriate legend to that effect.

     3.2  DISCLOSURE.  Purchaser has had access to all

information regarding the Company necessary to allow Purchaser to

make a fully informed decision to purchase the Senior E

Preferred.
                                

                           ARTICLE IV
                           ----------
                       REGISTRATION RIGHTS
                       -------------------
                                
     4.1  DEMAND REGISTRATION RIGHTS.  At any time after the end

of the Company's fiscal year, Purchaser may request, in writing,

that the Company effect the registration on Form S-1 or Form S-2

(or any successor form) of the Senior E Preferred.  If Purchaser

intends to distribute the Senior E Preferred by means of an

underwriting, Purchaser shall so advise the Company at its

request.  In the event such registration is underwritten, the

right of other stockholders to participate shall be conditioned

on such stockholders' participation in such underwriting.  Upon

receipt of any such request, the Company shall promptly give

written notice of such proposed stock registration to all

stockholders.  Such stockholder shall have the right, by giving

written notice to the Company within thirty (30) days after the

Company provides its notice, to elect to have included in such

registration such of their registrable stock as such stockholders

may request in such notice of election, subject to the approval

of the underwriter managing the offering.  Thereupon, the Company

shall, as expeditiously as possible, use its best efforts to

effect the registration, on Form S-1 or Form S-2 (or any such

form), of all stock which the Company has been requested to so

register.  Purchaser shall bear its proportionate share of the

expenses of such registration; provided, however, that expenses

borne by Purchaser shall not include the cost of any financial

statements prepared in the normal course of the Company's

business or charges made for the services of any officers or

employees of the Company in connection with such registration.

     4.2  INCIDENTAL REGISTRATION RIGHTS.  If, under state laws,

under the Securities Act of 1933, as amended or any other similar

Federal Statute and the rules and regulations of the Commission

thereunder, all as the same shall be in effect at the time

(hereinafter "the Act"), the Company proposes to register any of

its securities under the Act for the account of a security holder

or security holders exercising demand registration rights

(except, with respect to Registration Statements filed on Form S-

8 or Form S-4 or such other similar form then in effect under the

Act), it will each such time give written notice to Purchaser of

its intention so to do and, upon the written request of Purchaser

given within 20 days after the Company's giving of such notice

(which request shall state the intended method of disposition by

Purchaser of stock), the Company's use its best efforts to cause

the Stock, as to which registration shall have been so requested,

to be included in the securities to be covered by the

registration statement proposed to be filed by the Company, all

to the extent requisite to permit the sale or other disposition

of Purchaser's Stock so registered in accordance with the written

request of Purchaser.  Notwithstanding any other provision of

this Paragraph 4.2, if the underwriter determines that the

marketing factors require a limitation of the number of shares to

be underwritten, the underwriter may exclude some or all of the

Stock of the type Purchaser requested be registered from such

registration and underwriting.  In such event, the amount of such

Stock to be included in the registration shall be apportioned pro

rata among the holders of such Stock requesting registration,

according to the total amount of such Stock requested to be

registered by such requesters, or in such other proportion as

shall mutually be agreed to by such requesters.  In the event

that any registration pursuant to this Paragraph 4.2 shall be, in

whole or in part, a firm commitment underwritten offering of

securities of the Company, any request by Purchaser pursuant to

this Paragraph 4.2 to register Stock must specify that such

shares are to be included in the underwriting (i) on the same

terms and conditions as the shares of the Stock, if any,

otherwise being sold through underwriters under such registration

or (ii) on terms and conditions comparable to those normally

applicable to offerings of common stock in reasonably similar

circumstances in the event that no shares of the Stock are being

sold through underwriters under such registration.  Purchaser

shall bear its proportionate share of the expenses of such

registration; provided, however, that expenses borne by Purchaser

shall not include the cost of any financial statements prepared

in the normal course of the Company's business or charges made

for the services of such officers or employees of the Company in

connection with such registration.

     4.3  PRIOR REGISTRATION RIGHTS.  The Company acknowledges

that these are same rights conferred on the previously issued

Series A, B, C, D and G Senior Preferred Stock issued to

Purchaser.
                                

                            ARTICLE V
                            ---------
                            COVENANTS
                            ---------
                                
     5.1  INCREASE IN AUTHORIZED COMMON STOCK.  Purchaser

acknowledges that it is aware that in order for the shares of

Senior E Preferred to be convertible into shares of Common Stock,

the authorized number of shares of Common Stock which the Company

may issue must be increased.  The Company agrees to use its best

efforts to cause its shareholders to approve at the next annual

meeting of shareholders an amendment to the Company's Certificate

of Incorporation increasing the authorized Common Stock of the

Company in an amount sufficient to allow for the issuance of the

shares of Common Stock in which the Senior E Preferred (and all

other shares of Senior Preferred Stock which Purchaser has the

right to acquire pursuant to the documents referred to in Section

5.6 hereof) are convertible.

     5.2  FAILURE TO AUTHORIZE INCREASED COMMON STOCK SHARES.  In

the event the Company is Unsuccessful in causing its shareholders

to approve the increase in the authorized common shares, then the

Company will pay to 3M Four Hundred Thousand Dollars

($400,000.00) within seven (7) days of the shareholders meeting.

Upon receipt of payment of $400,000.00, 3M will return the Stock

Certificate for the issued shares to the Company.
                                

                           ARTICLE VI
                           ----------
                    MISCELLANEOUS PROVISIONS
                    ------------------------
                                
     6.1  AMENDMENTS AND MODIFICATION.  This Agreement may be

amended or supplemented only by written agreement of the parties.

     6.2  WAIVER OF COMPLIANCE.  Any failure of the Company or of

Purchaser to comply with any obligation agreement or condition

herein may be waived in writing, however, failure to insist upon

strict compliance with any such obligation, covenant or condition

shall not operate as a waiver of, or estoppel with respect to,

any subsequent or other failure.

     6.3  EXPENSES.  The Company and Purchaser shall pay the

expenses incurred by each of them in connection with the

preparation and execution of this Agreement.

     6.4  NOTICES.  All notices required to be given hereunder

shall be in writing any may be given in person or by United

States mail, by delivery service, or by electronic submission.

Any notice directed to a party to this Agreement shall become

effective upon the earliest of the following: (1) actual receipt

by that party; (ii) delivery to the designated address of that

party, addressed to that party; or (iii) if given by certified or

registered United States mail, five (5) business days after

deposit with the United States Post Service, postage prepaid,

addressed to that party at its designated address, attention of,

in the case of Purchaser, Gebran J. Sabongi and, attention of, in

the case of the Company, Dr. Paul A. Brown.  The designated

address of a party shall be as set forth above unless a party

specifies another address to the other party by means of a notice

given in accordance with the provisions of this paragraph.

     6.5  INTERPRETATION.  This Agreement has been prepared and

negotiations in connection herewith have been carried on by the

joint efforts of the parties.  This Agreement is to be construed

fairly and simply and not strictly for or against either of the

parties hereto.

     6.6  OTHER AGREEMENTS.  This Agreement is executed pursuant

to the Agreement dated May 1, 1995, between Company and

Purchaser.  Application of $400,000.00 by HEARx to the purchase

of Senior Preferred Stock, Series E, by 3M will reduce its debt

to 3M by $400,000.00.

     6.7  COUNTERPARTS.  This Agreement may be executed

simultaneously in two or more counterparts, each of which shall

be deemed an original, but all of which together constitute one

and the same instrument.

     6.8  FURTHER ASSURANCES.  At any time, upon request of the

other party, the Company and the Purchaser will perform, execute,

acknowledge and deliver all further transfers, documents, and

assurances as might be necessary or appropriate to effectuate the

transactions contemplated by this Agreement.

     IN WITNESS WHEREOF, the parties hereto have signed their

names, all as of the day, month and year first above written.

                              
                              MINNESOTA AND
                              MANUFACTURING COMPANY
                              
                              
                              By: /s/ Gebran J. Sabongi
                                 ------------------------------
                                 Gebran J. Sabongi
                                 Business Manager, Hearing Health
                              
                              
                              HEARx LTD.
                              
                              
                              By: /s/ Paul A. Brown
                                 ------------------------------
                                 Dr. Paul A. Brown
                                 Chairman of the Board
                              
                              
                           EXHIBIT A

                           HEARx LTD.
                  CERTIFICATE OF DESIGNATIONS,
                    PREFERENCES AND RIGHTS OF
                     SENIOR PREFERRED STOCK,
                            SERIES E
                                
                                
             Pursuant to Section 151 of the General
                     Corporation Law of the
                        State of Delaware

          HEARx Ltd., a corporation organized on April 11, 1986

and existing under the laws of the State of Delaware

("Corporation"), the Restated Certificate of Incorporation of

which was filed in the office of the Secretary of State of

Delaware on February 5, 1987, does by its chairman and its

Secretary hereby certify;

          That pursuant to the authority vested in the Board of

Directors by the Restated Certificate of Incorporation, the

Board, at a meeting duly held on June 16, 1995, adopted the

following resolutions:

          RESOLVED, that pursuant to the authority so conferred

upon it, the Board of Directors hereby authorizes the issuance of

11,765 shares of Senior Preferred Stock, Series E, par value

$1.00 per share ("Senior E Preferred"), to Minnesota Mining and

Manufacturing Company for a total purchase price of $1,000,000.

          RESOLVED, that the voting powers, preferences and

relative rights and privileges and other rights granted to the

Senior E Preferred and the qualifications, limitations or

restrictions imposed thereon be, and they hereby are, as follows:

          A.   DIVIDENDS AND DISTRIBUTION.  The holders of the

Senior E Preferred shall be entitled to receive when, as and if

declared by the Board of Directors out of funds legally available

for the purpose, the same amount paid on or with respect to

shares of Common Stock, par value $.10 per share ("Common

Stock"), of the corporation, each share of Senior E Preferred

being deemed equal to the number of shares of Common Stock into

which it is then convertible.

          B.   VOTING RIGHTS.  The holders of the senior B

Preferred shall have 100 votes per share of Senior E Preferred

and shall have voting rights and powers equal to the voting

rights and powers of the Common Stock.  Except as may be required

by law, the holders of the Senior E Preferred shall not vote

separately as a class but shall instead vote with the holders of

the Common Stock on all matters as to which stockholders are

entitled to vote under Delaware law.

          C.   PRIORITY.  The Senior E Preferred shall be senior

to all shares of capital stock of the Corporation other than the

Senior Preferred Stock, Series A, par value $1.00 per share

("Senior A Preferred"), Senior Preferred Stock, Series B, par

value $1. 00 per share ("Senior B Preferred"), the Senior

Preferred Stock, Series C, par value $1.00 per share ("Series C

Preferred"), Senior Preferred Stock, Series D, par value $1.00

per share ("Senior D Preferred") , and Senior Preferred Stock,

Series G, par value $1.00 per share ("Senior G Preferred"); the

Senior A, B, C, D, E and G preferred being together called the

"Senior Preferred") and shall rank pari passu with the Senior A,

B, C, D, E and G Preferred.

          D.   LIQUIDATION, DISSOLUTION OR WINDING UP

               1.   Upon any liquidation, dissolution or winding

up of the Corporation, no distribution shall be made to the

holders of any class of Preferred stock or Common Stock of the

corporation unless the holders of the Senior A Preferred, the

Senior B Preferred, the Senior C Preferred, the Senior D, the

Senior E and Senior G Preferred shall have received an aggregate

amount equal to $50, $67, $50, $67, $85, and $67 per share,

respectively.

               2.   In the event the assets to be distributed to

the holders of Senior Preferred shall be insufficient to permit

the payment to holders of the full preferential amount aforesaid,

then all the assets of the Corporation to be so distributed shall

be distributed to the holders of the Senior Preferred on a pro

rata basis in accordance with their respective holdings of such

Senior Preferred and the respective rights of such shares.

               3.   In the event that assets of the Corporation

remain after distribution to holders of Senior Preferred in

accordance with subparagraphs 1 and 2 of this paragraph D, the

holders of other shares of capital stock of the Corporation shall

be entitled to distribution of such assets in accordance with

their respective rights thereto.

          E.   OPTIONAL CONVERSION.  Each share of Senior E

Preferred shall be convertible at any time at the option of the

holder thereof into 100 fully paid and non-assessable shares of

Common Stock at the rate of $.85 per share ("Conversion Rate"),

subject to adjustment of the Conversion Rate in accordance with

paragraph G hereof.

          F.   MANDATORY CONVERSION.  In the event that the

shares of Common Stock are listed on the American Stock Exchange

or the New York Stock Exchange, each share of Senior E Preferred

shall be converted automatically into 100 fully paid and non-

assessable shares of Common Stock at the rate of $.85 per share.

          G.   ADJUSTMENTS TO THE CONVERSION RATE AND NOTICES.

The Conversion Rate shall be subject to adjustment from time to

time, calculated as follows, (except that no adjustment need be

made until cumulative adjustments would affect the Senior E

Preferred Conversion Rate by one or more shares of Common Stock):

               1.   if the Corporation:

                    (a)  Pays a dividend or makes a distribution

on its capital stock in shares of Common Stock;

                    (b)  Subdivides outstanding shares of Common

Stock into a greater number of shares;

                    (c)  combines outstanding shares of Common

Stock into a smaller number of shares; or

                    (d)  Issues by reclassification of Common

Stock any shares of its capital stock; then the Conversion Rate

in effect immediately prior to such action shall be adjusted so

that each holder of shares of Senior E Preferred thereafter

converted may receive the number of shares of Common Stock which

such holder would have owned immediately following such action if

such holder had converted such shares of Senior E Preferred

immediately prior to such action.

               2.   If the Corporation shall consolidate with or

merge into any other corporation or transfer all of its

properties and assets as an entirety to any person, then upon

consummation of such transaction, each share of the Senior E

Preferred shall automatically become convertible into the kind

and amount of securities, cash or other assets to which the

holder of such share would have been entitled immediately after

such consolidation, merger or transfer if such holder had

converted such share of Senior D and G Preferred immediately

prior to the effective date of such transaction.

               3.   The adjustment shall become effective

immediately after the record date in the case of a dividend or

distribution and immediately after the effective date in the case

of (a) an issuance, a subdivision, combination, or

reclassification, or (b) consolidation or merger of the

Corporation.

               4.   If the Corporation:

                    (a)  Issues rights or warrants entitling

holders of capital stock to subscribe for or purchase shares of

Common Stock or securities convertible into Common Stock; or

                    (b)  Distributes to the holders of its

capital stock any of its assets or debt securities or any rights

or warrants to purchase debt securities, assets or other

securities of the Corporation; then notice thereof shall be given

in writing to the holders of the Senior E Preferred no later than

30 days prior to the date of such issuance or distribution.

          H.   MECHANICS OF CONVERSION.

               1.   Upon receipt of written notice from the

Corporation that shares of Senior E Preferred have been converted

automatically pursuant to paragraph F hereof, which notice shall

be given within 15 days of the occurrence of such mandatory

conversion, each holder of Senior E Preferred shall surrender the

certificate or certificates therefor, duly endorsed, at the

office of the Corporation.  Thereupon, the Corporation shall

promptly issue and deliver to such holder of Senior E Preferred a

certificate or certificates for the number of shares of Common

Stock to which such holder shall be entitled.

               2.   In the event of conversion at the option of

the holder of shares of Senior E Preferred pursuant to paragraph

E hereof, the holder shall surrender the certificate or

certificates therefore, duly endorsed, at the office of the

corporation and shall give written notice to the Corporation of

such holders election to convert same and shall state therein the

number of shares of Senior E Preferred being converted.

          I.   RESERVATION OF STOCK ISSUABLE UPON CONVERSION.

The Corporation shall at all times thereafter reserve and keep

available out of its authorized but unissued shares of Common

Stock, solely for the purpose of effecting conversion of the

shares of Senior E Preferred, such number of shares of Common

Stock as shall from time to time be sufficient to effect the

conversion of all outstanding shares of Senior E Preferred.

          RESOLVED, that the proper officers of the Corporation

be, and they hereby are, authorized and directed to take such

action as they may deem necessary to carry into effect the

foregoing resolutions.

          IN WITNESS WHEREOF, the corporation has caused the

foregoing certificate to be signed by Paul A. Brown, M.D., its

Chairman of the Board, and attested by David W. Forman, its

secretary, on July 24, 1995.

                              
                              HEARx LTD.
                              
                              
                              By: /s/ Paul A. Brown
                                 -----------------------------
                                 Paul A. Brown, M.D.
                                 Chairman of the Board

ATTEST:

/s/ David W. Forman
- ----------------------------
David W. Forman
Secretary

                             [3M LETTERHEAD]





December 21, 1995


Paul A. Brown, M-D.
Chairman of the Board
HEARx Ltd.
471 Spencer Drive
West Palm Beach, FL 33409                    FAX: 407/478-9603

Dear Paul:

Thank you for your letter dated December 12, 1995.  We are
prepared to agree to the following.

HEARx will
     1.   pay to 3M $308,000 by December 31, 1995;
     2.   commit that its centers will expand their 3m purchases;
     3.   reduce the conversion price of debt to common stock
          from $0.85 to $0.618 for the initial conversion of
          $400,000 from debt to equity pursuant to Paragraph I of
          the May 1, 1995 Agreement.  To accomplish this, H will
          appropriately amend the Stock Purchase Agreement, dated
          July 24, 1995, and Certificate of Designations,
          Preferences and Rights of Senior Preferred Stock Series
          E, which is attached to the Stock Purchase Agreement as
          Exhibit A. HEARx will promptly send to 3M a certificate
          for an additional 1,270 shares of Senior Preferred
          Stock Series E, which is convertible to common stock at
          a ratio of 1:100.

Upon condition that HEARx performs these obligations, 3M will
     1.   reduce the $808,000 HEARx owes to 3M pursuant to our
          agreement dated May 1, 1995 by $308,000.  Paragraph 4
          of the May 1, 1995 Agreement will be amended to show
          that the remaining debt will be $500,000, instead of
          $600,000.
     2.   waive the requirement in paragraph 3 of the May 1, 1995
          Agreement that HEARx pay to 3M $280,000 plus interest
          by December 12, 1995.
     2.   waive the requirement that HEARx purchase 3,200 3M
          hearing instruments in 1995.
     3.   waive its demand for $22,000 that you disputed, which
          is apart from our May 1, 1995 agreement.

All other terms and conditions of the May 1, 1995 agreement
remain in effect.

If HEARx agrees with this, please sign below and fax a signed
copy to me.  Please wire the $380,000 by December 31 to 3M at the
following address:
     Norwest Bank Minnesota N.A.
     Minneapolis, MN
     ABA#: 091 00 00 19
     Benefactor: 3M Company
     Account #: 0030-103.

Sincerely

/s/ Gabi J. Sabongi
Gabi J. Sabongi
Business Manager


AGREED
HEARx, Ltd.

By  /s/ Paul A. Brown
   -------------------------
     Paul A. Brown, M.D.
     Chairman


cc:  Howard J. Bergman
     Scott T. Henderson
     Kimberly F. Chaney





                   [LETTERHEAD OF HEARX LTD.]
                                
                                
                                
                                
                                
                                
                        January 26, 1996
                                
                                
VIA FEDERAL EXPRESS

Howard J. Bergman, Esq.
Senior Counsel
Minnesota Mining and Manufacturing Company
Legal Department
3M Center Bldg. 220-11E-03
St. Paul, Minnesota 55144

          Re:  HEARx Ltd.; Senior Preferred Stock Series E

Dear Mr. Bergman:

          Enclosed is stock certificate number 0011E evidencing
6,472 shares of Senior Preferred Stock, Series E which has been
issued by HEARx Ltd. (the "Company") to Minnesota Mining and
Manufacturing Company ("3M") pursuant to the Agreement between
the Company and 3M dated May 1, 1995 and the subsequent Stock
Purchase Agreement dated July 24, 1995, both as amended by the
letter agreement between the Company and 3M dated December 21,
1995.  Please allow this letter to confirm your agreement that
upon the issuance of the enclosed stock certificate to you, 3M
will waive any default by the Company in not having issued and
delivered this stock to 3M prior to the date hereof.

          Thank you for your cooperation in this matter.

                                   Sincerely,
                                   
                                   
                                   /s/ Paul A. Brown
                                   Paul A. Brown, M.D.
                                   Chairman of the Board
                                   
                                   
                                   



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