LAWSON TWO

REPORT TO HYDROMER
1999





Confidential                                                   Valuation Report
- --------------------------------------------------------------------------------

                           VALUATION OF CERTAIN SHARES
                                       OF
                        BIOSEARCH MEDICAL PRODUCTS, INC.


                          Valuation Date: May 17, 1999
                           Issuance Date: June 4, 1999


                              Howard, Lawson & Co.
                  Two Penn Center Plaza Philadelphia, PA 19102
                     Tel: (215) 988-0010 Fax: (215) 568-0029


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Opinion Letter
- --------------------------------------------------------------------------------

                                Table of Contents

Opinion Letter - The Opinion of Howard, Lawson & C the common stock of Biosearch
Medical Products,  Inc. ( possible acquisition of Biosearch.  The effective date
of our letter (the "Valuation Date").

Definition of Fair Market Value

The Situation

Factors Considered

Materials Reviewed

Relevant Factors Considered

Activities Conducted

Limiting Conditions and Assumptions

Discussion

Acknowledgment

Opinion


Exhibits

Summary Balance Sheet of Biosearch Medical Products

Summary Income Statement of Biosearch Medical Prod

Comparable Companies' Financial Data

Comparable Companies' Valuation Indications

Rankings of Comparable Companies

Calculation of Cost of Capital

Discounted Cash Flow Analysis - Probability of Achiev

Discounted Cash Flow Analysis - Probability of Achievi

Methodology and Background

- ---------------------------------------------------------------
Howard, Lawson & Co.





Howard, Lawson & Co.

     Two Penn Center Plaza                                    Investment Banking
     Philadelphia, PA 19102                                   Corporate Finance
     215 988-0010
     215 568-0029 FAX

                                             May 17, 1999
Mr. Kenneth P. Brice
Vice President of Finance
Hydromer, Inc.
35 Industrial Parkway
Somerville, NJ 08876-3518

Dear Mr. Brice:

     You have asked us to provide a valuation of the common stock (the "Shares")
of Biosearch  Medical  Products,  Inc.  ("Biosearch") to assist  Hydromer,  Inc.
("Hydromer")  in evaluating a possible  acquisition of Biosearch.  The effective
date of the valuation is as of the date of our letter (the "Valuation Date").

Definition of Fair Market Value

     Fair market value is the price at which an asset would change hands between
a willing buyer and a willing seller when the former is not under any compulsion
to buy and the latter is not under any  compulsion to sell, and both parties are
able, as well as willing, to trade and are well informed about the asset and the
market for that asset.

The Situation

     Biosearch develops, manufactures, and markets products designed for medical
and  surgical  applications.  Biosearch's  manufacturing  is largely  focused on
applying hydrophilic coatings to intermittent urinary catheters. Biosearch holds
an  exclusive,  worldwide,  license to apply  Hydromer(R),  a  patented  coating
technology to certain medical devices.

     Revenues  for  Biosearch  have  declined  from $3.6 million in 1994 to $1.3
million  in 1998.  In  addition,  Biosearch  has  experienced  net losses in the
aggregate of $3.1 million for the fiscal years 1995 through  1998.  Revenues for
the three months ended March 31, 1999 were $218,401 compared to $604,117 for the
same period a year ago. In addition, operating losses for the three months ended
March 31, 1999 amounted to $191,035  compared to operating losses of $28,004 for
the three months ended March 31, 1998.





Biosearch Medical Products, Inc.                                  Opinion Letter
- --------------------------------------------------------------------------------

The Situation (continued)

     Hydromer  is a polymer  research  and  development  company  that  develops
polymeric  complexes for commercial markets in the medical and industrial fields
Hydromer owns several process and application patents for Hydromer(R) which is a
polymeric substance that becomes extremely  lubricious when wet, and a technique
of grafting or applying this  substance  onto surfaces  which consist of a broad
variety of materials,  including other polymers such as polyurethane,  polyvinyl
chloride, and silicone elastomers, ceramics and metals.

     Hydromer is considering acquiring Biosearch,  which would allow Hydromer to
funnel its chemical production through Biosearch. Accordingly, you have asked us
to  provide a  valuation  of the  common  stock of  Biosearch  to assist  you in
evaluating a possible acquisition of Biosearch.

Factors Considered

     In  arriving at our  opinion of the fair  market  value of common  stock of
Biosearch as of the  Valuation  Date, we have  considered  all factors we deemed
relevant, including the following:

     (1)  The nature and history of Biosearch's business;

     (2)  The general economic outlook and the outlook for the medical equipment
          industry;

     (3)  The  book  value  of  Biosearch  and the  financial  condition  of the
          company;

     (4)  The results of operations of Biosearch;

     (5) The dividend-paying capacity of Biosearch;

     (6) Whether or not Biosearch has goodwill or other intangible value;

     (7) Past transactions in Biosearch's common stock; and,

     (8)  The market price of the stocks of  corporations  (listed on exchanges,
          NASDAQ or  trading  over-the-counter)  engaged  in the same or similar
          lines of business as  Biosearch,  where such stock is traded in a free
          and open market.

     A determination of fair market value depends upon the circumstances in each
case.  In forming our opinion,  we considered  these factors and concluded  that
certain factors are more significant  indicators of value than others,  but have
not  assigned  mathematical  weights to any of them in  determining  fair market
value.

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Howard, Lawson & Co.                                                           2





Biosearch Medical Products, Inc.                                  Opinion Letter
- --------------------------------------------------------------------------------

Materials Reviewed

     In arriving at our opinion,  we have  considered,  among other things,  the
following information:

     (1)  Audited financial statements of Biosearch for the years ended December
          30, 1994 through December 31, 1998;

     (2)  Audited financial statements of Biosearch for three months ended March
          31, 1998 and the three months ended March 31, 1999;

     (3)  Forecasted  financial  statements  of  Biosearch  for the years ending
          December 31, 1999 through December 31, 2003 provided by Biosearch;

     (4)  Publicly available financial and market information  regarding certain
          companies we deemed comparable to Biosearch; and,

     (5)  Information  regarding  the  business  and its  prospects  obtained in
          discussions with the managements of Hydromer and Biosearch.

Relevant Factors Considered

     In forming our opinion as to the fair market  value of  Biosearch as of the
Valuation Date, we considered all recognized  valuation  methodologies,  placing
emphasis  on  those  methods  used to  estimate  fair  market  value  under  the
assumption of the Biosearch continuing as a going concern.

Activities Conducted

     In  arriving  at our  opinion of the fair  market  value of  Biosearch,  we
conducted the following activities:

     1.   We  performed  an  asset  purchase  analysis  of  Biosearch  based  on
          estimated  fair  market  values of  Biosearch's  fixed and  intangible
          assets.  The management of Hydromer  estimates that Biosearch's  fixed
          assets have a fair market value of $50,000 and the  intangible  assets
          have a fair market value of $50,000.

     2.   We  performed  a  discounted  cash  flow  ("DCF")  analysis  based  on
          management's  forecasts  of future  earnings,  adjusted to reflect the
          probability  of a range of possible  outcomes.  We employed  different
          probabilities  of Biosearch  meeting its  forecasts,  much in the same
          manner  that a  venture  capital  investor  would  use to  analyze  an
          investment in a development stage company.  This method is referred to
          as The First Chicago Method.

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Howard, Lawson & Co.                                                           3





Biosearch Medical Products, Inc.                                  Opinion Letter
- --------------------------------------------------------------------------------

Limiting Conditions or Assumptions

     We have relied on management's  representations concerning Biosearch and on
financial  statements  of  Biosearch  in forming our  opinion of value.  We have
assumed the accuracy of all financial information reviewed.  See the Methodology
and Background  exhibit of our report for a full  description of assumptions and
limiting conditions to our valuation opinion.

Discussion

     As mentioned in The Situation section of our report, revenues for Biosearch
declined  from  $3.6  million  in 1994 to $1.3  million  in 1998.  In  addition,
revenues  for the three months  ended March 31, 1999 were  $218,401  compared to
$604,117 for the same period a year ago. Biosearch experienced net losses in the
aggregate of $3. l million for the fiscal years 1995 through  1998. In addition,
operating  losses for the three months ended March 31, 1999 amounted to $191,035
compared  to  operating  losses  of  $28,004  for the same  period  a year  ago.
Furthermore,  shareholders' equity as of March 31, 1999 was $489,561 compared to
$3.2 million as of December 31, 1994. See Exhibits 1 and 2 for a summary balance
sheet and income statement of Biosearch.

     Asset Purchase

     In  arriving  at our  opinion of the fair  market  value of  Biosearch,  we
considered  an asset  purchase  analysis of Biosearch  based on  estimated  fair
market values of  Biosearch's  fixed and  intangible  assets as of the Valuation
Date. The management of Hydromer  estimates that Biosearch's fixed assets have a
fair market value of $50,000 and the intangible  assets have a fair market value
of $50,000.  Assuming that  Biosearch's  net  operating  loss  carryfowards  are
available  to a  buyer,  they  would  have an  estimated  value of  $250,000  to
$300,000.

     On the basis of an asset purchase and excluding all liabilities, we believe
the  relevant  range of values for  Biosearch  is  $350,000  to  $400,000 in the
aggregate, or $0.16 per share to $0.18 per share.

     Discounted Cash Flow

     We also performed a DCF analysis based on management's  forecasts of future
earnings,  adjusted to reflect the probability of a range of possible  outcomes.
We employed different probabilities of Biosearch meeting its forecasts,  much in
the same  manner  that a  venture  capital  investor  would  use to  analyze  an
investment in a  development  stage  company.  This method is referred to as The
First Chicago Method.

     In preparing  the DCF analysis to  determine  the net present  value of the
expected future cash flows of Biosearch,  we first  calculated a cost of capital
for Biosearch.  Our DCF analysis was based on projections  provided by Biosearch
to Hydromer.

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Howard, Lawson & Co.                                                           4





Biosearch Medical Products, Inc.                                  Opinion Letter
- --------------------------------------------------------------------------------

Discussion (continued)

     Discounted Cash Flow (continued)

     In order to determine the net present value of the estimated cash flows, we
first calculated a weighted average cost of capital ("WACC") for Biosearch.  The
WACC serves as an estimate of the required  rate of return for an  investment of
similar  risk and  capital  structure.  In  calculating  the cost of  capital of
Biosearch, we calculated the estimated implied cost of equity based on multiples
reflected in the values of comparable publicly traded companies.  See Exhibits 3
and 4 for the  financial  and  market  data  of the  publicly  traded  guideline
companies,  respectively.  Also,  see Exhibit 5 for a comparison of Biosearch to
the public guideline companies.

     The guideline  companies cost of equity is readily determined by the use of
the Gordon Growth Model.  According to this methodology,  the rate of return (k)
is a function of a company's  projected net income (I),  market value (MV),  and
expected five year growth rate (g).

                                   K= I/MV + g

     In our  calculation of the implied cost of equity,  we determined the ratio
of price, or market value,  to projected net income,  as shown in Exhibit 6. The
1999  projected  net  income-to-market   value  ratio  is  the  inverse  of  the
price-to-projected  net income ratio.  The cost of equity is then  determined by
adding the expected five-year growth rate to the projected net  income-to-market
value ratio. Only one of the  seven-selected  guideline  companies had analysts'
consensus  five-year  forecasted growth rates available.  Using this methodology
results in implied costs of equity of 42%.

     Biosearch did not have any interest-bearing  debt as of the Valuation Debt,
and therefore we used the implied cost of equity rather than a WACC.

     Exhibit 7 illustrates  the  calculation  of the present value of forecasted
net after-tax free cash flows over the forecasted  period and the calculation of
the present  value of a residual  value for Biosearch at the end of the forecast
period assuming that Biosearch  achieves  approximately 41% of its forecast.  In
Exhibit 7, all cash flows of Biosearch  have been  discounted at 45%. We assumed
that the cash  flow of  Biosearch  will grow at an  average  rate of 5% over the
long-term following the forecast period.

     Using a discount rate of 45%, our calculations  resulted in a present value
of the  estimated  cash  flows  for  the  fiscal  years  1999  through  2003  of
approximately  $161,000.  The  present  value of the  post-year  2003 cash flows
received in perpetuity, or residual value, is approximately $119,000. When these
two amounts are added together, the total present value of future cash flows, or
enterprise  value,  is  $280,000.  In order to  determine  the  equity  value of
Biosearch,  we subtracted debt, net of any cash of $49,000. Using a WACC of 45%,
the resulting equity value is $329,000, or $0.15 per share.

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Howard, Lawson & Co.                                                           5





Biosearch Medical Products, Inc.                                  Opinion Letter
- --------------------------------------------------------------------------------

Discussion (continued)

     Discounted Cash Flow (continued)

     In  addition,  we  performed  a DCF  analysis in which  Biosearch  achieved
approximately  55% of its forecast,  as illustrated in Exhibit 8. Using the same
discount  rate of 45%, the  resulting  equity  value is  $445,000,  or $0.20 per
share.

     As  indicated  above,  Biosearch  has  experienced  declining  revenues and
continued  operating  losses  during the last five fiscal  years.  However,  the
forecasts  provided by Biosearch  assume a turnaround in both revenue growth and
profitability  beginning in 1999. In addition,  both DCF analyses illustrated in
Exhibits 7 and 8 assume a turnaround of Biosearch.  If it becomes  apparent that
Biosearch will be unable to meet its forecasts,  then the appropriate steps will
need to be taken to cut expenses in order to stem further losses and achieve the
level of profitability indicated in the forecasts provided by Biosearch.

     On the basis of our discussions with management and the materials reviewed,
it is our opinion  that the fair  market  value for the Shares is $0.18 to $0.20
per share as of the Valuation Date.

Acknowledgment

     This report was  prepared  by Frank  Spewock  and  Michael  Hanzelik,  both
employees of Howard,  Lawson & Co. and actively involved in the firm's extensive
valuation  practice.  The  appraisers  have no  present or  contemplated  future
interest in Biosearch  or any other  interest  that might tend to prevent  their
making a fair and unbiased appraisal.

     This report has been prepared in conformity  with the Uniform  Standards of
Professional  Appraisal Practice of The Appraisal  Foundation and the Principles
of Appraisal  Practice and Code of Ethics of the American Society of Appraisers.
A signed certification is contained in the Methodology and Background exhibit of
our report.

Opinion

     On the basis of our analysis and the  materials  reviewed as stated in this
letter,  it is our opinion  that  Biosearch  had a fair market value of $0.18 to
$0.20 per share as of the Valuation Date.

                                                        /s/ Howard, Lawson & Co.
                                                            HOWARD, LAWSON & CO.

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Howard, Lawson & Co.                                                          6



                                   EXHIBIT 2
                           BIOSEARCH MEDICL PRODUCTS
                                Income Statement
                                  ($ in 000's)


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

                                                                              December 30,
                                                     1994                        1995                         1996
                                           --------------------------------------------------------------------------------
                                                                                                  
Total sales                                $3,574          100.0%      $3,268           100.0%      $2,649          100.0%

Cost of Goods Sold                          2,909           81.4%       2,778            85.0%       2,239           84.5%
                                           ------                      ------                       ------

Gross Profit                                  664           18.6%         490            15.0%         410           15.5%

Operating Expenses
     Selling, General & Administrative      1,452           40.6%       1,332            40.8%       1,223           46.2%
                                           ------                      ------                       ------

Income from Operations                       (788)         (22.0%)       (842)          (25.8%)       (813)         (30.7%)

Other Expense (Income)
     Interest Expense, Net                     99            2.8%          30             0.9%          72            2.7%
     Sale of Assets                        (3,329)         (93.1%)       --               0.0%        --              0.0%
     Other, Net                              (454)         (12.7%)        (29)           (0.9%)         (1)           0.0%
                                           ------                      ------                       ------
Total Other Expense                        (3,684)        (103.1%)          2             0.0%          71            2.7%

Income Before Income Taxes                  2,897           81.0%        (844)          (25.8%)       (884)         (33.4%)
                                           ------                      ------                       ------

Income Taxes                                   60            1.7%        --               0.0%        --              0.0%

Extraordinary Item                            114            3.2%        --               0.0%        --              0.0%
                                           ------                      ------                       ------

Net Income                                 $2,951           82.6%       ($844)          (25.8%)      ($884)         (33.4%)
                                           ======                      ======                       ======

EBIT                                        2,995           83.8%        (813)          (24.9%)       (812)         (30.6%)
EBITDA                                      3,120           87.3%        (698)          (21.4%)       (721)         (27.2%)

Depreciation                                  124                         115                           91


                                           ----------------------------------------------------
                                                                                                     3 months       3 months
                                                                December 30,                          ended          ended
                                                     1997                        1998                3/31/99        3/31/98
                                           ----------------------------------------------------     ------------------------
                                                                                                 
Total sales                                $1,936          100.0%      $1,295           100.0%      $218           $604

Cost of Goods Sold                          1,537           79.4%       1,271            98.2%       214            430
                                           ------                      ------                       ------------------------

Gross Profit                                  399           20.6%          24             1.8%         4            174

Operating Expenses
     Selling, General & Administrative        893           46.1%         859            66.3%       195            202
                                           ------                      ------                       ------------------------

Income from Operations                       (493)         (25.5%)       (835)          (64.5%)     (191)           (28)

Other Expense (Income)
     Interest Expense, Net                     84            4.4%          22             1.7%      --               21
     Sale of Assets                          --              0.0%        --               0.0%      (192)          --
     Other, Net                               (22)          (1.1%)         (7)           (0.5%)     (400)            (2)
                                           ------                      ------                       ------------------------
Total Other Expense                            63            3.2           16             1.2%      (592)            19

Income Before Income Taxes                   (556)         (28.7%)       (851)          (65.7%)      401            (47)
                                           ------                      ------                       ------------------------

Income Taxes                                 --              0.0%        --               0.0%      --             --

Extraordinary Item                           --              0.0%        --               0.0%      --             --
                                           ------                      ------                       ----
Net Income                                  ($556)         (28.7%)      ($851)          (65.7%)     $401           ($47)
                                           ======                      ======                       ========================

EBIT                                         (472)         (24.4%)       (829)          (64.0%)      401            (26)
EBITDA                                       (380)         (19.7%)       (768)          (59.3%)      401            (26)

Depreciation                                   91                          60







                                   EXHIBIT 3
                        BIOSEARCH MEDICAL PRODUCTS, INC.
                 Comparable Public companies Financial Summary
                                  ($ in 000s)



                                       ---------------------------------------------------------------------------------------------
                                         Electro-                Dexterity                     Nitinol
                                        Cathether                Surgical,                     Medical
                                          Corp.                    Inc.                 Technologies, Inc.      MedAmicus, Inc.
                                       ---------------------------------------------------------------------------------------------
                                                                                                
FISCAL YEAR ENDED                         Aug 31                        Dec 31                Dec 31                  Dec 31

REVENUES                                           % Growth                % Growth                % Growth               % Growth
LATEST 12 MONTHS:                LTM      $4,979                 $18,492                $22,131                  $8,032
PRECEDING FISCAL YEARS:          FY1       5,347    -19.6%        18,492     29.0%       10,125      44.2%        8,032     12.0%
                                 FY2       6,648     -9.7%        14,337        na        7,024      83.2%        7,173     26.7%
                                 FY3       7,362      1.4%            na        na        3,833      44.8%        5,660      6.9%
                                 FY4       7,263      0.2%            na        na        2,647         na        5,295     75.9%
                                 FY5       7,248                      na                  2,003                   3,011

EBITDA                                               % Rev                   % Rev                  % Rev                   % Rev
LATEST 12 MONTHS:                LTM       ($629)   -12.6%       ($1,959)   -10.6%      ($2,383)    -10.6%         $370      4.6%
PRECEDING FISCAL YEARS:          FY1        (629)   -11.8%        (1,959)   -10.6%       (2,693)    -26.6%          370      4.6%
                                 FY2        (505)    -7.6%        (2,851)   -19.9%       (1,505)    -21.4%          371      5.2%
                                 FY3        (543)    -7.4%            na        na          746      19.5%         (635)   -11.2%
                                 FY4        (769)   -10.6%            na        na          384      14.5%           10      0.2%
                                 FY5      (1,141)   -15.7%            na        na           na         na         (850)   -28.2%

EBIT                                                 % Rev                   % Rev                  % Rev                   % Rev
LATEST 12 MONTHS:                LTM       ($761)   -15.3%       ($2,089)   -11.3%      ($3,474)    -15.7%         ($95)    -1.2%
PRECEDING FISCAL YEARS:          FY1        (763)   -14.3%        (2,089)   -11.3%       (3,154)    -31.2%           95     -1.2%
                                 FY2        (659)    -9.9%        (3,013)   -21.0%       (1,732)    -24.7%         (114)    -1.6%
                                 FY3        (682)    -9.3%            na        na          658      17.2%       (1,038)   -18.3%
                                 FY4        (968)   -13.3%            na        na          328      12.4%         (283)    -5.3%
                                 FY5      (1,279)   -17.6%            na        na           na         na       (1,153)   -38.3%

NET INCOME                                           % Rev                   % Rev                  % Rev                   % Rev
LATEST 12 MONTHS:                LTM     ($1,384)   -27.8%       ($2,368)   -12.8%      ($3,469)    -15.7%        ($144)    -1.8%
PRECEDING FISCAL YEARS:          FY1       (1077)   -20.1%        (2,368)   -12.8%       (1,837)    -18.1%         (144)    -1.8%
                                 FY2        (599)    -9.0%        (2,283)   -15.9%       (1,163)    -16.6%         (146)    -2.0%
                                 FY3      (1,136)   -15.4%            na        na          584      15.2%       (1,212)   -21.4%
                                 FY4      (1,372)   -18.9%            na        na          289      10.9%       (1,294)   -24.4%
                                 FY5        (804)   -11.1%            na        na           na         na         (799)   -26.5%




                                                                                                   
FINANCIALS AS OF:                       11/30/98                12/31/98                9/30/98                12/31/98

TOTAL ASSETS                               2,741                  12,270                 65,279                   4,220
CASH                                          64                   3,386                  9,969                   1,022
TOTAL FUNDED DEBT                          2,501                   3,007                 18,087                     978
SHAREHOLDERS' EQUITY                      (1,495)                  4,190                 33,658                   2,574
TOTAL INVESTED CAPITAL                     1,006                   7,197                 51,746                   3,552

RATIO ANALYSIS:
CURRENT RATIO:                               0.9                    2.2                    3.4                     2.2
NET PROFIT MARGIN                         -27.8%                  -12.8%                 -15.7%                   -1.8%
RETURN ON ASSETS                          -50.5%                  -19.3%                  -5.3%                   -3.4%
RETURN ON EQUITY                           92.6%                  -56.5%                 -10.3%                   -5.6%
RETURN ON TOTAL INVESTED CAPITAL         -137.5%                  -32.9%                  -6.7%                   -4.0%
DEBT/TOTAL INVESTED CAPITAL               248.6%                   41.8%                  35.0%                   27.5%

THREE YEAR GROWTH RATES:
REVENUES                                   -9.7%                   29.0%                  56.4%                   14.9%
EBITDA                                     -6.5%                  -31.3%                    nmf                  238.7%
EBIT                                       -7.6%                  -30.7%                    nmf                  -30.5%
NET INCOME                                 -7.7%                    3.7%                    nmf                  -51.9%






                                       ---------------------------------------------------------------------------------------------
                                         Valley Forge            Rochester                                             BIOSEARCH
                                          Scientific              Medical                                          MEDICAL PRODUCTS,
                                             Corp.                 Corp.                 Trimedyne Inc.                  INC.
                                       ---------------------------------------------------------------------------------------------
                                                                                                
FISCAL YEAR ENDED                              Sep 30                 Sep 30                   Sep 30                   Dec 31

REVENUES                                          % Growth                % Growth                  % Growth              % Growth
LATEST 12 MONTHS:                LTM     $3,996                 $10,009                  $6,385                   $1,295
PRECEDING FISCAL YEARS:          FY1      3,880     -2.5%         9,518     25.0%         6,985      -24.6%        1,295   -33.1%
                                 FY2      3,978     16.2%         7,615     37.5%         9,262       -1.3%        1,936   -26.9%
                                 FY3      3,425     27.4%         5,540     76.9%         9,383       -2.7%        2,649   -18.9%
                                 FY4      2,688    -25.1%         3,131     43.0%         9,639      -28.0%        3,268    -8.6%
                                 FY5      3,587                   2,189                  13,393                    3,574

EBITDA                                              % Rev                  % Rev                     % Rev                  % Rev
LATEST 12 MONTHS:                LTM       $206      5.2%       ($2,484)   -24.8%       ($2,034)     -31.9%        ($768)  -59.3%
PRECEDING FISCAL YEARS:          FY1        125      3.2%        (2,329)   -24.5%        (5,733)     -82.1%         (768)  -59.3%
                                 FY2        160      4.0%        (1,875)   -24.6%        (4,975)     -53.7%         (380)  -19.7%
                                 FY3         46      1.3%        (1,415)   -25.5%        (4,854)     -51.7%         (721)  -27.2%
                                 FY4       (223)    -8.3%          (954)   -30.5%        (5,343)     -55.4%         (699)  -21.4%
                                 FY5        776     21.6%          (668)   -30.5%        (2,226)     -16.6%         (308)   -8.6%

EBIT                                                % Rev                  % Rev                     % Rev                  % Rev
LATEST 12 MONTHS:                LTM        $74      1.8%       ($3,338)   -33.4%       ($2,323)     -36.4%        ($829)  -64.0%
PRECEDING FISCAL YEARS:          FY1        (10)    -0.2%        (3,106)   -32.6%        (6,038)     -86.4%         (829)  -64.0%
                                 FY2         20      0.5%        (2,414)   -31.7%        (5,379)     -58.1%         (472)  -24.4%
                                 FY3        (96)    -2.8%        (1,893)   -34.2%        (5,351)     -57.0%         (812)  -30.7%
                                 FY4       (366)   -13.6%        (1,299)   -41.5%        (5,931)     -61.5%         (814)  -24.9%
                                 FY5        695     19.4%        (1,003)   -45.8%        (2,774)     -20.7%         (333)   -9.3%


NET INCOME                                          % Rev                  % Rev                     % Rev                  % Rev
LATEST 12 MONTHS:                LTM        $20      0.5%       ($2,487)   -24.8%       ($2,481)     -38.9%        ($851)  -65.7%
PRECEDING FISCAL YEARS:          FY1        (34)    -0.9%        (2,258)   -23.7%        (6,218)     -89.0%         (851)  -65.7%
                                 FY2          7      0.2%        (2,099)   -27.6%        (5,535)     -59.8%         (556)  -28.7%
                                 FY3        (75)    -2.2%        (1,360)   -24.5%        (4,956)     -52.8%         (884)  -33.4%
                                 FY4       (216)    -8.0%        (1,311)   -41.9%        (5,622)     -58.3%         (844)  -25.8%
                                 FY5        548     15.3%          (964)   -44.0%        (2,265)     -16.9%         (440)  -12.3%




                                                                                                    
FINANCIALS AS OF:                      12/31/98                12/31/98                12/31/98                 12/31/98

TOTAL ASSETS                              4,209                  32,029                  14,602                      897
CASH                                      1,085                  15,671                   2,497                      106
TOTAL FUNDED DEBT                             0                       0                       0                        0
SHAREHOLDERS' EQUITY                      4,018                  30,724                  13,487                       89
TOTAL INVESTED CAPITAL                    4,018                  30,724                  13,487                       89

RATIO ANALYSIS:
CURRENT RATIO:                            18.9                    15.6                    12.6                      0.9
NET PROFIT MARGIN                          0.5%                  -24.8%                  -38.9%                   -65.7%
RETURN ON ASSETS                           0.5%                   -7.8%                  -17.0%                   -94.9%
RETURN ON EQUITY                           0.5%                   -8.1%                  -18.4%                  -954.3%
RETURN ON TOTAL INVESTED CAPITAL           0.5%                   -8.1%                  -18.4%                  -954.3%
DEBT/TOTAL INVESTED CAPITAL                0.0%                    0.0%                    0.0%                     0.0%

THREE YEAR GROWTH RATES:
REVENUES                                  13.0%                   44.9%                  -10.2%                   -26.6%
EBITDA                                      nmf                   34.7%                    2.4%                      nmf
EBIT                                     -70.2%                   33.7%                     nmf                      nmf
NET INCOME                               -45.8%                   19.9%                     nmf                      nmf





                                    EXHIBIT 4

                        BIOSEARCH MEDICAL PRODUCTS, INC.

                     Comparable Public Companies Market Data

                          ($ in 000s, except per share)


                                              --------------------------------------------------------------------------------------
                                               Electro-       Dexterity        Miltnol                               Valley Forge
                                              Cathether       Surgical,        Medical                                Scientific
                                                Corp.           Inc.       Technologies, Inc.   MedAmicus, Inc.         Corp.
                                              --------------------------------------------------------------------------------------
                                                                                                        
Exchange Listing                               Nasdaq BB        Nasdaq           Nasdaq             Nasdaq               Nasdaq

Ticket Symbol                                       ECTH          DEXT             NMTI               MEDM                 VLFG

Common Shares Oustanding (000's)                6,290.00      6,654.00        10,629.00           4,112.00             8,229.00

Price Per Share (April 9, 1999)                     0.15          1.42             3.56               1.13                 3.75

Market Value                                      944.00      9,461.00        37,871.00           4,626.00            30,860.00

Cash                                               64.00      3,386.00         9,969.00           1,022.00             1,085.00

Total Funded Debt                               2,501.00      3,007.00        18,087.00             978.00                 0.00

Total Capitalization (1)                        3,380.00      9,082.00        45,989.00           4,583.00            29,775.00

Latest Twelve Month Earnings Per Share              0.22          0.36             0.33               0.03                 0.00

Three Year Average Earnings Per Share               0.15          0.35             0.08               0.12                 0.00

1999 Forecasted Earnings Per Share                    na            na               na                 na                   na

1999 Forecasted Earnings Per Share                    na            na               na                 na                   na

                                                                                                RELATIVE VALUE MULTIPLES
- ------------------------------------------------------------------------------------------------------------------------------------
Price to Earnings                                  neg x         neg x            neg x              neg x           1,527.96 x

Price to  3 Year Average Earnings                  neg x         neg x            neg x              neg x                neg x

Price to 1999 Forecasted Earnings                   na x          na x           14.3 x               na x                 na x

Price to 2000 Forecasted Earnings                   na x          na x            8.9 x               na x                 na x

Price to Shareholders' Equity                      neg x             x            1.1 x              1.8 x                7.7 x

Total Capitalization to Revenues                   0.7 x         0.5 x            2.1 x              0.6 x                7.5 x

Total Capitalization to EBITDA                     neg x         neg x            neg x             12.4 x              144.6 x

Total Capitalization to 3 yr. Avg. EBITDA          neg x         neg x            neg x              neg x                neg x

Total Capitalization to EBIT                       neg x         neg x            neg x              neg x              404.2 x

Total Capitalization to 3 yr. Avg. EBIT            neg x         neg x            neg x              neg x                neg x
- ------------------------------------------------------------------------------------------------------------------------------------

                                              ----------------------------------------
                                               Rochester                  BIOSEARCH
                                                Medical     Trimedyne,     MEDICAL
                                                 Corp.         Inc.     PRODUCTS, INC.
                                              ----------------------------------------
                                                                                           
Exchange Listing                                 Nasdaq        Nasdaq     Nasdaq BB

Ticket Symbol                                      ROCM          TMED            no

Common Shares Oustanding (000's)               5,349.00     10,906.00      2,211.00

Price Per Share (April 9, 1999)                    8.88          1.19          0.38

Market Value                                  47,472.00     12,956.00        829.00

Cash                                          15,671.00      2,497.00        106.00

Total Funded Debt                                  0.00          0.00          0.00

Total Capitalization (1)                      31,801.00     10,459.00        723.00

Latest Twelve Month Earnings Per Share             0.46          0.23          0.38

Three Year Average Earnings Per Share              0.36          0.51          0.35

1999 Forecasted Earnings Per Share                   na            na            na

1999 Forecasted Earnings Per Share                   na            na            na

                                                                                           Median         Mean
- ---------------------------------------------------------------------------------------------------------------
Price to Earnings                                  neg x        neg x         neg x         nmf x         nmf x

Price to  3 Year Average Earnings                  neg x        neg x         neg x         nmf x         nmf x

Price to 1999 Forecasted Earnings                   na x         na x          na x        14.3 x        14.3 x

Price to 2000 Forecasted Earnings                   na x         na x          na x         8.9 x         8.9 x

Price to Shareholders' Equity                      1.5.x        1.0 x         9.3 x         1.5 x         2.6 x

Total Capitalization to Revenues                   3.2 x        1.6 x         0.6 x         1.6 x         2.3 x

Total Capitalization to EBITDA                     neg x        neg x         neg x        78.5 x        78.5 x

Total Capitalization to 3 yr. Avg. EBITDA          neg x        neg x         neg x         nmf x         nmf x

Total Capitalization to EBIT                       neg x        neg x         neg x         nmf x         nmf x

Total Capitalization to 3 yr. Avg. EBIT            neg x        neg x         neg x         nmf x         nmf x
- ---------------------------------------------------------------------------------------------------------------

(1)  Total  Capitalization  =  Total  Funded  Debt  +  Market  Value  of  Equity
     Securities Cash


                                   EXHIBIT 5

                           BIOSEARCH MEDICAL PRODUCTS

            Comparision of Biosearch to the Public Comparables Group

                        Absolute Size and Profit Margins
- --------------------------------------------------------------------------------
                                                                    LTM Revenues
Company                                                               (In 000s)
- -------                                                               ---------

Nitnol Medical Technologies, Inc.                                     $22,131.00
Dexterity Surgical, Inc.                                              $18,492.00
Rochester Medical Corp.                                               $10,009.00
MedAmicus, Inc.                                                       $ 8,032.00
Trimedyne, Inc.                                                       $ 6,385.00
Electro-Cathether Corp.                                               $ 4,979.00
Valley Forge Scientific Corp.                                         $ 3,996.00
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS                                            $ 1,295.00
- --------------------------------------------------------------------------------

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

- --------------------------------------------------------------------------------
                                                                    LTM EBITT
Company                                                          (As %  of Revs)
- -------                                                          -----  --------

Valley Forge Scientific Corp.                                              1.80%
MedAmicus, Inc.                                                           -1.20%
Dexterity Surgical, Inc.                                                 -11.30%
Electro-Cathether Corp.                                                  -15.30%
Nitnol Medical  Technologies, Inc.                                       -15.70%
Rochester Medical Corp.                                                  -33.40%
Trimedyne, Inc.                                                          -36.40%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS                                               -64.40%
- --------------------------------------------------------------------------------

mean                                                                     -21.90%
median                                                                   -15.50%

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

- --------------------------------------------------------------------------------
                                                                   Net Income
Company                                                          (As %  of Revs)
- -------                                                          -----  --------

Valley Forge Scientific Corp.                                              0.50%
MedAmicus, Inc.                                                           -1.80%
Dexterity Surgicial, Inc.                                                -12.80%
Nitnol Medical Technologies, Inc.                                        -15.70%
Rochester Medical Corp.                                                  -24.80%
Electro-Cathether Corp.                                                  -27.80%
Timedyne, Inc.                                                           -38.90%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS                                               -65.70%
- --------------------------------------------------------------------------------

mean                                                                      23.40%
median                                                                   -20.30%

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

- --------------------------------------------------------------------------------
                                                                    Total Assets
Company                                                              (in $000s)
- -------                                                              ----------

Nitnol Medical Technologies, Inc.                                     $65,279.00
Dexterity Surgical, Inc.                                              $32,029.00
Rochester Medical Corp.                                               $14,602.00
MedAmicus, Inc.                                                       $12,270.00
Trimedyne, Inc.                                                       $ 4,220.00
Electro-Cathether Corp.                                               $ 2,209.00
Valley Forge Scientific Corp.                                         $ 2,741.00
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL  PRODUCTS                                           $   897.00
- --------------------------------------------------------------------------------

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

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

                                                                      LTM EBITDA
Company                                                           (As % of Revs)
- -------                                                           --------------

Valley Forge Scientific Corp.                                              5.20%
MedAmicus, Inc.                                                            4.60%
Dexterity Surgical, Inc.                                                 -10.60%
Nitnol Medical  Technologies, Inc.                                       -10.80%
Electro-Cathether Corp.                                                  -12.60%
Rochester Medical Corp.                                                  -24.80%
Trimedyne, Inc.                                                          -31.90%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS                                               -59.30%
- --------------------------------------------------------------------------------

mean                                                                     -17.50%
median                                                                   -11.70%

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

Notes:
- -----




                                   EXHIBIT 5

                           BIOSEARCH MEDICAL PRODUCTS

            Comparision of Biosearch to the Public Comparables Group

                                  Growth Rates

- --------------------------------------------------------------------------------
                                                                     3 Year CAGR
Company                                                               Revenues
- -------                                                               --------

Nitnol Medical Technologies, Inc.                                         56.40%
Rochester Medical Corp.                                                   44.90%
Dexterity Surgical, Inc.                                                  29.00%
MedAmicus, Inc.                                                           14.90%
Valley Forge Scientific Group                                             13.00%
Electro-Cathether Corp.                                                   -9.70%
Trimedyne, Inc.                                                          -10.20%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS                                               -26.60%
- --------------------------------------------------------------------------------

Mean                                                                      14.00%
Median                                                                    14.00%

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



- --------------------------------------------------------------------------------
                                                                     3 Year CAGR
Company                                                                  EBIT
- -------                                                                  ----

Rochester Medical Corp.                                                   33.70%
Electro-Cathether Corp.                                                   -7.60%
MedAmicus, Inc.                                                          -30.50%
Dexterity Surgicial, Inc.                                                -30.70%
Valley Forge Scientific Corp.                                            -70.20%
Trimedyne, Inc.                                                              nmf
Nitnol Medical Technologies, Inc.                                            nmf
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS, INC                                              nmf
- --------------------------------------------------------------------------------

mean                                                                     -21.10%
median                                                                   -30.50%

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



- --------------------------------------------------------------------------------
                                                                       3 Year
Company                                                            CAGR Revenues
- -------                                                            -------------

MedAmicus, Inc.                                                          238.70%
Rochester Medical Corp.                                                   34.70%
Trimedyne, Inc.                                                            2.40%
Electro-Cathether Corp.                                                   -6.50%
Dexterity Surgical, Inc.                                                 -31.30%
Valley Forge Scientific Corp.                                                nmf
Nitnol Medical Technologies, Inc.                                            nmf
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS                                                   nmf
- --------------------------------------------------------------------------------

Mean                                                                      47.60%
Median                                                                     2.40%

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



- --------------------------------------------------------------------------------
                                                                     3 Year CAGR
Company                                                               Net Income
- -------                                                               ----------
Rochester Medical Corp.                                                   19.90%
Dexterity Surgicial, Inc.                                                  3.70%
Electro-Cathether Corp.                                                   -7.70%
Valley Forge Scientific Corp.                                            -45.80%
MedAmicus, Inc.                                                          -51.90%
Trimedyne, Inc.                                                              nmf
Nitnol Medical Technologies, Inc.                                            nmf
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS, INC                                              nmf
- --------------------------------------------------------------------------------

mean                                                                     -16.40%
median                                                                    -7.70%

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


Notes:
- ------




                                   EXHIBIT 5

                           BIOSEARCH MEDICAL PRODUCTS

            Comparision of Biosearch to the Public Comparables Group

                              Relative Performance


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

Company                                                         Return on Assets
- -------                                                         ----------------

Valley Forge Scientific Corp.                                              0.50%
MedAmicus, Inc.                                                           -3.40%
Nitnol Medical Technologies, Inc.                                         -5.30%
Rochester Medical Corp.                                                   -7.80%
Trimedyne, Inc.                                                          -17.00%
Dexterity Surgicial, Inc.                                                -19.30%
Electro-Cathether Corp.                                                  -50.50%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS, INC                                          -94.90%
- --------------------------------------------------------------------------------

Mean                                                                     -24.70%
Median                                                                   -12.40%

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



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

                                                                Return on Total
Company                                                         Invested Capital
- -------                                                         ----------------

Valley Forge Scientific Corp.                                              0.50%
MedAmicus, Inc.                                                           -4.00%
Nitnol Medical Technologies, Inc.                                         -6.70%
Rochester Medical Corp.                                                   -8.10%
Trimedyne, Inc.                                                          -18.40%
Dexterity Surgicial, Inc.                                                -32.90%
Electro-Cathether Corp.                                                 -137.50%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS, INC                                         -954.30%
- --------------------------------------------------------------------------------

mean                                                                    -145.20%
median                                                                   -13.20%

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



- --------------------------------------------------------------------------------
Company                                                         Return on Equity
- -------                                                         ----------------

Electro-Cathether Corp.                                                   92.60%
Valley Forge Scientific Corp.                                              0.50%
MedAmicus, Inc.                                                           -5.60%
Rochester Medical Corp.                                                   -8.10%
Nitinol Medical Technologies, Inc.                                       -10.30%
Trimedyne, Inc.                                                          -18.40%
Dexterity Surgicial, Inc.                                                -56.50%
- --------------------------------------------------------------------------------
BIOSEARCH MEDICAL PRODUCTS, INC                                         -954.30%
- --------------------------------------------------------------------------------

Mean                                                                    -120.00%
Median                                                                    -9.20%

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


Notes:
- ------





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

                                                         EXHIBIT 6

                                                 BIOSEARCH MEDICAL PRODUCTS

                                               CALCULATION OF COST OF CAPITAL

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

Comparable Company Financial Data
- ---------------------------------
                                                                  Analysts' Consensus
                   Price/Earnings    Earnings Capitialization       Forecasted Growth    Implied Discounted
Company Name        Multiple (1)             Rate (2)                    Rate (3)              Rate (4)
- ------------        ------------             --------                    --------              --------

                                                                                     
Nitinol Medical        14.3 x                 7.0%                         35.0%                 42.0%


                                                                 Mean Discount Rate                42.00%

(1)  Based on the market data as of 4/9/99

(2)  The inverse of the price/earnings multiple

(3)  Source: Zacks

(4)  Sum of the growth rate and the capitalization rate.

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




                                    Exhibit 7

                           BIOSEARCH MEDICAL PRODUCTS

                          Discounted Cash Flow Analysis

                                  ($ in 000's)

- ----------------------------------
PROBABILITY = 41% of the FORECASTS
- ----------------------------------



- -----------------------------------------------------------------------------------------------------------------
                                                                                                       Terminal
                                                       1999      2000      2001      2002      2003     Value [2]
- -----------------------------------------------------------------------------------------------------------------
                                                                                      
Total Revenues                                          765     1,112     1,454     1,733     2,001

Earnings before Interest and Taxes                      (29)       69      73.8       205       343
                                                      -----     -----     -----     -----     -----

Income Taxes of Subchapter S Distributions (1)           (9)       22      23.6        66       110
                                                      -----     -----     -----     -----     -----

Operating Income, net of tax                            (20)       47      50.2       139       233       245

Plus: Depreciation and Amortization                      19        19        19        19        19        19

Less: (Increase) Reduction in Net Working Capital       (44)       29        28        23        22        23

Less: (Capital Expenditures)                             (8)       (8)       (8)       (8)       (8)      (19)
                                                      -----     -----     -----     -----     -----     -----

Cash Flows                                              (52)       86        89       173       266       268

                                                                                                        -----
Residual Value (3)                                                                                        670
                                                                                                        -----

                                                      -------------------------------------------------------
Discount Rate                                                                  45.00%
                                                      -------------------------------------------------------

Number of periods                                      0.32      1.15      2.15      3.15      4.15      4.65

Discount Factor                                       0.887     0.6533    0.4506    0.3107    0.2143    0.178

Present Value of Cash Flows                             (47)       56        40        54        57

Sum of Present Value of Cash Flows                      181

Present Value of Residual Value                         119

Total Present Value (Enterprise Value)                $ 280

Less: Debt net of cash and investments as of            (49)
                                                      -----

                                                      =====
Net Equity Value                                      $ 329
                                                      =====

Per Share                                             $0.15


- --------------------------------------------------------------------------------
                       Discount Rate Sensitivity Analysis
- --------------------------------------------------------------------------------
                                           40%             45%               50%
Equity Value                             $346            $329           $   316
- --------------------------------------------------------------------------------
 Per Share                               $0.16           $0.15          $  0.14



- --------------------------------------------------------------------------------
                             Calculation of Net Debt
- --------------------------------------------------------------------------------
Total Debt                                                                    0
Less: Cash and Marketable Securities                                         49
                                                                        -------
Net Debt                                                                    (49)
- --------------------------------------------------------------------------------



Notes:
- ------

(1)  Assumes Pro-forma income taxes of 32%

(2)  Terminal  Cash  flow  based on  growth  rate in  operating  come of 5% with
     depreciation,  CAPEX, and working capital  investments  unchanged from last
     forecasted year.

(3)  Residual  value equals cash flow  capitalized  at discount rate of 45% less
     growth rate of 5%, equaling 40%

           Percentage of
            Forecasted          Probability of         Expected
              Results              Result               Value
              -------              ------               -----

                0%                   5%                   0%

               25%                  35%                   9%

               50%                  50%                  25%

               75%                  10%                   8%

              100%                   0%                   0%
                                 ---------            ----------
                                   100%                  41%
                                                      ----------



                                   Exhibit 8

                           BIOSEARCH MEDICAL PRODUCTS

                         Discounted Cash Flow Analysis

                                  ($ in 000's)

PROBABILITY = 55% of the FORECASTS


- -----------------------------------------------------------------------------------------------------------------
                                                                                                       Terminal
                                                       1999      2000      2001      2002      2003     Value [2]
- -----------------------------------------------------------------------------------------------------------------
                                                                                      
Total Revenues                                        1,020      1,483      1,939      2,311      2,668

Earnings before Interest and Taxes                      (38)        92         98        273        457
                                                     ------     ------     ------     ------     ------
Income Taxes of Subchapter S Distributions (1)          (12)        29         32         87        146
                                                     ------     ------     ------     ------     ------
Operating Income, net of tax                            (26)        62         67        186        311        327

Plus: Depreciation and Amortization                      25         25         25         25         25         25

Less: (Increase) Reduction in Net Working Capital       (23)        38         38         31         29         31

Less: (Capital Expenditures)                            (14)       (14)       (14)       (14)       (14)       (25)
                                                     ------     ------     ------     ------     ------     ------
Cash Flows                                              (38)       111        115        227        351        358
                                                                                                            ------
Residual Value (3)                                                                                             895
                                                                                                            ------

                                                     -------------------------------------------------------------
Discount Rate                                                                   45.00%
                                                     -------------------------------------------------------------

Number of periods                                      0.32       1.15       2.15       3.15       4.15       4.65

Discount Factor                                       0.887     0.6533     0.4506     0.3107     0.2143     0.1780

Present Value of Cash Flows                             (34)        73         52         71         75

Sum of Present Value of Cash Flows                      237

Present Value of Residual Value                         159

Total Present Value (Enterprise Value)               $  396

Less: Debt net of cash and investments as of            (49)
                                                     ------
                                                     ======
Net Equity Value                                     $  445
                                                     ======
Per Share                                            $ 0.20



- --------------------------------------------------------------------------------
                       Discount Rate Sensitivity Analysis
- --------------------------------------------------------------------------------
                                           40%             45%               50%
Equity Value                             $527            $445           $   384
- --------------------------------------------------------------------------------



- --------------------------------------------------------------------------------
                             Calculation of Net Debt
- --------------------------------------------------------------------------------
Total Debt                                                                    0
Less: Cash and Marketable Securities                                         49
                                                                         -------
Net Debt                                                                    (49)
- --------------------------------------------------------------------------------


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

Notes:
- ------

(1)  Assumes Pro-forma income taxes of 32%

(2)  Terminal  Cash  flow  based on  growth  rate in  operating  come of 5% with
     depreciation,  CAPEX, and working capital  investments  unchanged from last
     forecasted year.

(3)  Residual  value equals cash flow  capitalized  at discount rate of 45% less
     growth rate of 5%, equaling 40%

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


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

           Percentage of
            Forecasted          Probability of         Expected
              Results              Result               Value
              -------              ------               -----


                 0%                   5%                  0%

                25%                  10%                  3%

                50%                  50%                 25%

                75%                  30%                 23%

               100%                   5%                  5%
                                   ------               -----
                                    100%                 55%
                                                        -----
- --------------------------------------------------------------------------------




Biosearch Medical Products, Inc.                        Methodology & Background
- --------------------------------------------------------------------------------

                                    Overview

     Howard,  Lawson & Co. provides  investment  banking  services to the senior
management of private and public companies. Services include financial plans for
corporations  and their  shareholders,  valuations  of  securities  and business
interests,  fairness opinions,  debt and equity financing,  litigation  support,
advice and  negotiations  dealing with changes in  ownership,  acquisitions  and
divestitures.

     In forming our  opinion as to the value of  Biosearch  as of the  Valuation
Date, we considered all the factors which we deemed  relevant and have described
them in our report.

     We have interviewed the senior  managements of Hydromer and Biosearch,  and
reviewed those  documents which were necessary to form a sound opinion as to the
value of Biosearch.  In forming our opinion,  we have followed the suggestion of
Internal Revenue Service Revenue Ruling 59-60, which states in part:

     "Because  valuations  cannot be made on the basis of a prescribed  formula,
there is no means whereby the various  applicable  factors in a particular  case
can be assigned mathematical weights in deriving the fair market value. For this
reason, no useful purpose is served by taking an average of several factors (for
example, book value,  capitalized earnings and capitalized dividends) and basing
the valuation on the result.  Such a process  excludes active  consideration  of
other pertinent  factors,  and the end result cannot be supported by a realistic
application of significant facts in the case except by mere chance."

     In  forming  our  opinion,  we have also  reviewed  relevant  court  cases,
treatises and articles dealing with valuation procedures.

- --------------------------------------------------------------------------------
Howard, Lawson & Co.





Biosearch Medical Products, Inc.                        Methodology & Background
- --------------------------------------------------------------------------------

                      Assumptions and Limiting Conditions

     This  appraisal  is  subject  to the  following  assumptions  and  limiting
conditions:  (1) information,  estimates,  and opinions contained in this report
are obtained from sources considered  reliable;  however,  no liability for such
sources  is assumed  by the  appraiser;  (2)  Hydromer  and its  representatives
warrant to appraiser that the information supplied to appraiser was complete and
accurate to the best of client's knowledge.  Information  supplied by management
has  been  accepted  without  further   verification  as  correctly   reflecting
Biosearch's  past  results and current  condition  in  accordance  with  general
accepted accounting  principles,  unless otherwise noted; (3) possession of this
report,  or a copy thereof,  does not carry with it the right of  publication of
all or part of it, nor may it i be used for any purpose by anyone but the client
without the previous  written consent of the appraiser or the client and, in any
event,  only with proper  attribution;  (4)  appraiser  is not  required to give
testimony in court, or be in attendance  during any hearings or depositions with
reference to Biosearch, unless previous arrangements have been made; and (5) the
various estimates of value presented in this report apply to this appraisal only
and may not be used out of the context presented herein. This appraisal is valid
only for the appraisal date or dates specified herein and only for the appraisal
purpose or purposes specified herein.

- --------------------------------------------------------------------------------
Howard, Lawson & Co.





Biosearch Medical Products, Inc.                        Methodology & Background

                                 Certification

     This report was  prepared  by Frank  Spewock  and  Michael  Hanzelik,  both
employees of Howard,  Lawson & Co. and actively involved in the firm's extensive
valuation  practice.  The  appraisers  have no  present or  contemplated  future
interest in Biosearch or any other  interest  which might tend to prevent  their
making a fair and unbiased appraisal.

     We hereby certify, to the best of our knowledge and beliefs, the statements
of fact contained in this report are true and correct,  and this report has been
prepared in  conformity  with the Uniform  Standards of  Professional  Appraisal
Practice of The Appraisal  Foundation and the  Principles of Appraisal  Practice
and Code of Ethics of the American  Society of Appraisers.


                                                            /s/ Frank Spewock
                                                            --------------------
                                                                Frank Spewock
                                                                Partner


                                                            /s/ Michael Hanzelik
                                                            --------------------
                                                                Michael Hanzelik
                                                                Associate


                                                                June 3, 1999