GALAGEN INC
S-3/A, 1999-05-04
BIOLOGICAL PRODUCTS, (NO DIAGNOSTIC SUBSTANCES)
Previous: DREYFUS INVESTMENT GRADE BOND FUND INC, 40-17F2, 1999-05-04
Next: DREYFUS SOCIALLY RESPONSIBLE GROWTH FUND INC, 497J, 1999-05-04



<PAGE>

   
As filed with the Securities and Exchange Commission on May 4, 1999.
    

                                                      Registration No. 333-71883
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                         SECURITIES AND EXCHANGE COMMISSION
                                Washington, DC 20549
                             _________________________
   
                                  AMENDMENT NO. 2
                                        TO 
                                      FORM S-3
                               REGISTRATION STATEMENT
                                       UNDER
                             THE SECURITIES ACT OF 1933
    
                              ________________________
                                          
                                    GALAGEN INC.
                                          
             (Exact name of the Registrant as specified in is charter)


                    Delaware                              41-1719104    
         (State or other jurisdiction of               (I.R.S. Employer 
          incorporation or organization)               Identification No.)


                                  1275 Red Fox Road 
                            Arden Hills, Minnesota 55112
                                   (651) 634-4230
                 (Address and telephone number of the Registrant's
                            principal executive offices)
                                          
                                  Robert A. Hoerr
           Chairman of the Board of Directors and Chief Executive Officer
                                    GalaGen Inc.
                                 1275 Red Fox Road
                            Arden Hills, Minnesota 55112
                                   (651) 634-4230
             (Name, address and telephone number of agent for service)
                          ___________________________________
                                          
                                      copy to:
                                          
                                    Kris Sharpe
                                Faegre & Benson LLP
                                 200 Norwest Center
                              90 South Seventh Street
                            Minneapolis, Minnesota 55402
                        ___________________________________

Approximate date of commencement of proposed sale to the public:  From time to
time after the effective date of this Registration Statement.
          
       If the only securities being registered on this Form are being offered 
pursuant to dividend or interest reinvestment plans, please check the 
following box.  / /

       If any of the securities being registered on this Form are to be 
offered on a delayed or continuous basis pursuant to Rule 415 under the 
Securities Act of 1933, other than securities offered only in connection with 
dividend or interest reinvestment plans, check the following box.  /x/

       If this Form is filed to register additional securities for an 
offering pursuant to Rule 462(b) under the Securities Act, check the 
following box and list the Securities Act registration statement number of 
earlier effective registration statement for the same offering.  / /

       If this Form is a post-effective amendment filed pursuant to Rule 
462(c) under the Securities Act, check the following box and list the 
Securities Act registration statement number of the earlier effective 
registration statement for the same offering.  / / 

       If delivery of the prospectus is expected to be made pursuant to Rule 
434, please check the following box.  / /


<PAGE>
                                          
                          CALCULATION OF REGISTRATION FEE
                                          
   
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------
                                        AMOUNT TO      PROPOSED MAXIMUM         PROPOSED MAXIMUM         AMOUNT OF
TITLE OF EACH CLASS OF SECURITIES TO        BE         OFFERING PRICE PER       AGGREGATE OFFERING       REGISTRATION
          BE REGISTERED                 REGISTERED          SHARE (1)                PRICE (1)              FEE
- -------------------------------------------------------------------------------------------------------------------------
<S>                                     <C>            <C>                         <C>                    <C>
Common Stock, $.01 par value            1,633,800            $1.78                 $2,908,164              $808(2)
                                          Shares  
</TABLE>
    
   
(1)  Estimated solely for the purpose of calculating the registration fee
     pursuant to Rule 457(c).
    
   
(2)  The Registrant paid $212 in connection with the original filing of this
     Registration Statement for the registration of 318,800 shares with a
     proposed maximum offering price per share of $2.39.  Pursuant to this
     Amendment No. 2, the number of shares being registered has been increased
     to 1,633,800.  As a result, based on the maximum offering price shown in
     the above table, the additional registration fee paid today is $596.00.
    
                        -----------------------------------

          The Registrant hereby amends this Registration Statement on such date
or dates as may be necessary to delay its effective date until the Registrant
shall file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.


<PAGE>

The information in this preliminary prospectus is not complete and may be 
changed.  These securities may not be sold until the registration statement 
filed with the Securities and Exchange Commission is effective.  This 
preliminary prospectus is not an offer to sell and does not seek an offer to 
buy these securities in any jurisdiction where the offer or sale in not 
permitted.  

   
                     Subject to completion.  Dated May 4, 1999.
    
                                          
   
                                    PROSPECTUS 
    
                                          
   
                                  1,633,800 SHARES
    
                                          
                                          
                                    GALAGEN INC.
                                          
                                          
                                          
                                    COMMON STOCK
   
    
   
          This prospectus relates to shares of our common stock that may be sold
by the selling stockholders named under "Selling Stockholders".  We will not
receive any of the proceeds from the sale of those shares.
    
   
          Our common stock is traded on the Nasdaq National Market under the
symbol "GGEN."  On April 30, 1999, the last sale price for the  common stock,
as reported on the Nasdaq National Market, was $1.81 per share.
    
   
          SEE "RISK FACTORS" BEGINNING ON PAGE 2 FOR FACTORS YOU SHOULD CONSIDER
BEFORE BUYING SHARES OF THE  COMMON STOCK.
    
                        -----------------------------------

          Neither the Securities and Exchange Commission nor any state
securities commission has approved or disapproved of these securities or
determined if this prospectus is truthful or complete.  Any representation to
the contrary is a criminal offense.

                        -----------------------------------
                                          
   
                    The date of this prospectus is May __, 1999
    

<PAGE>

                                     THE COMPANY
   
     We are a nutritional products company.  Our mission is to become the
leading presence in foods, beverages and dietary supplements that help enhance
the immune system.  To accomplish this mission, we are focusing our efforts on
segments of the consumer foods and beverages market and the clinical nutrition
products markets that demand immune-enhancing benefits.  A critical factor for
our success is our immune-enhancing ingredient that is derived from colostrum,
milk collected in the first few milkings of a dairy cow after its calf is born. 
We have branded our immune-enhancing ingredient Proventra-TM- Brand Natural
Immune Components.  The primary immune-enhancing components of Proventra are
antibodies.  Antibodies are proteins that enhance the body's immune system to
protect against harmful pathogens. Proventra also provides proteins, such as
lactoferrin, as well as growth factors and multiple vitamins and minerals.
    

     We are a Delaware corporation formed in 1992.  Our executive offices are
located at 1275 Red Fox Road, Arden Hills, Minnesota 55112, and our telephone
number is (651) 634-4230.
                                          
                                    RISK FACTORS
   
     You should consider carefully the following risks before you decide to buy
our common stock.  The risks and uncertainties described below are not the only
ones facing our company.  Additional risks and uncertainties also may impair our
business operations.  If any of the following risks actually occur, our
business, financial condition and results of operations would likely suffer.  In
such case, the trading price of our common stock could decline, and you may lose
all or part of the money paid to buy our common stock.
    

   
     This prospectus contains forward-looking statements based on our current 
expectations, assumptions, estimates and projections about our business and 
our industry.  These forward-looking statements involve risks and 
uncertainties. Our actual results could differ materially from those 
anticipated in these forward-looking statements as a result of a number of 
factors, as more fully described below and elsewhere in this prospectus.  We 
undertake no obligation to update publicly any forward-looking statements for 
any reason, even if new information becomes available or other events occur 
in the future.
    
                                2
<PAGE>


GENERAL
   
    
   
      WE MAY NOT EVER ACHIEVE A PROFITABLE LEVEL OF OPERATIONS.
    

     Our ability to achieve profitable operations depends in large part on:
   
        - entering into agreements to develop products and establish markets 
          for those products;and
        
        - making the transition from a research company to an operating and 
          marketing company.  
    
   
     We cannot be sure we will be successful in ever achieving either result. 
We have experienced significant operating losses in each year since our
inception in 1987.  We have an accumulated deficit of more than $57 million as
of December 31, 1998.  We may continue to lose money in the future.
    
   
     IF WE CANNOT OBTAIN CONTINUING FUNDING, WE MAY BE UNABLE TO IMPLEMENT OUR
BUSINESS PLANS.
    
   
     If we cannot find adequate funding, we may have to delay or eliminate some
of our product development plans.  We may be required to grant licenses to
others to establish markets for  products or technologies that we would
otherwise seek to market ourselves.
    
   
     Our cash requirements for working capital depend on numerous factors. 
These factors include:

          -    our spending on marketing activities, including clinical
               marketing trials;
          -    our progress in finding partners to help us develop products and
               market those products;
          -    the willingness and ability of our partners to provide funding
               for  our activities;
          -    our spending on product development programs;
          -    the rate of technological advances in the production of our
               products;
          -    our spending on  facilities, equipment and personnel to make our
               products; and
          -    the status of competitive products.
    
   
     Our long-term ability to continue funding our planned operations depends on
our ability to obtain additional funds through:

          -    product revenues; 
          -    equity or debt financing; 
          -    finding partners to help us develop products and market those
               products; 
          -    license agreements; or
          -    other financing sources.
    
   
     Because of our significant long-term capital requirements, we may seek to
raise funds when conditions are favorable.  We may do so even if we do not have
an immediate need for the capital at the time we raise it.  If 
    

                              3
<PAGE>
   
we have not raised funds prior to when our needs for funding become 
immediate, we may be forced to raise funds when conditions are unfavorable.  
This could result in significant dilution of our current stockholders.
    
   
     IF WE DO NOT ACHIEVE A PROFITABLE LEVEL OF OPERATIONS AND CANNOT FIND
FUNDING IN THE FUTURE, WE COULD EVENTUALLY BECOME INSOLVENT OR BANKRUPT.
    
   
     If we do not achieve a profitable level of operations and we do not obtain
necessary funding from some source other than operations, we could eventually
deplete our cash reserves and become insolvent or bankrupt.
    
   
     THE RELATIVELY LOW LEVEL OF TRADING IN OUR COMMON STOCK MAY MAKE IT HIGHLY
VOLATILE.
    
   
     The volume of shares of common stock traded on the Nasdaq National Market
has been relatively small.  Given the small volume of shares traded, market
fluctuations may have a particularly adverse effect on the market price of our
common stock.  We cannot be sure of the liquidity of the market for the common
stock or the price at which any sales may occur.  The volume of trading in our
common stock in the future will depend upon the number of holders  of the common
stock, the interest of securities dealers in  maintaining a market in the common
stock and other factors beyond our control. The market price of our common stock
could be subject to significant fluctuations in response to:
    
   
     -    our operating results; 
     -    the operating results of our competitors or other biotechnology 
          companies; 
     -    technological developments;
     -    government regulations;
     -    the status of our proprietary rights to potential products;
     -    litigation;
     -    public safety concerns; and 
     -    other factors.
    
   
     Some of these factors are unrelated to our operating performance and beyond
our control.
    
                              4
<PAGE>
   
     GALAGEN AND THE OWNERS OF SHARES OF OUR COMMON STOCK MAY HAVE DIFFICULTY IN
SELLING THOSE SHARES IN THE FUTURE IF OUR COMMON STOCK IS REMOVED FROM LISTING
ON THE NASDAQ NATIONAL MARKET.
    
   
     We must meet specific requirements for our shares to continue to be listed
on the Nasdaq National Market. We cannot be sure that we will continue to meet
those requirements in the future. If we fail to meet the continued listing
requirements, or fail to file a plan acceptable to Nasdaq for meeting those
requirements, Nasdaq may remove our common stock from listing on the National
Market.  We cannot be sure that our common stock will continue to be listed on
the National Market.  If in the future our common stock fails to qualify for
continued listing on the National Market, we would apply to have its listing
transferred to the Nasdaq SmallCap Market.  If the listing of our common stock
is transferred from the National Market to the SmallCap Market, it may be more
difficult for owners of our common stock to sell it through brokers. 
Additionally, we may have more difficulty raising funds through the sale of our
common stock or securities convertible into common stock.
    
   
     If trading privileges in our common stock on the Nasdaq National Market
were terminated, we would be required to demonstrate compliance with the
applicable requirements for initial inclusion of a security on the Nasdaq
National Market before our common stock would be listed again on that exchange. 
The requirements for initial inclusion are more stringent than those for
continued listing. 
    
   
     WE MAY BE SUBJECT TO PRODUCT LIABILITY CLAIMS THAT EXCEED OUR INSURANCE
COVERAGE.
    
   
    
   
     Our business involves exposure to potential product liability risks that
are inherent in the production, manufacture and distribution of consumer and
clinical food products that are designed to be ingested. The successful
assertion or settlement of any uninsured claim, a significant number of insured
claims or a claim 
    
                              5

<PAGE>
   
exceeding our insurance coverage could have a material adverse
effect on our business and financial condition. We cannot be sure that we will
be able to obtain product liability insurance on acceptable terms or that
provides adequate protection. Furthermore, we cannot be sure that we will be
able to secure increased insurance coverage as the markets for our products
increase.
    
   
    
   
     IF WE RELY ON INACCURATE MARKET INFORMATION, WE COULD MAKE DECISIONS THAT
HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND FINANCIAL CONDITION.
    
   
     Because we are currently developing our products and markets for those
products, we are particularly reliant on market data.  If that data is
inaccurate, we may commit resources to product development and marketing efforts
that do not become profitable.  Product development and marketing efforts that
do not become profitable may have a material adverse effect on our business and
financial condition.  We have obtained market and related data from a
competitive-market analysis firm.  We have not independently verified the
accuracy of that information.  In any event, the methodology typically used in
compiling market and related data makes it subject to inherent uncertainties and
estimations.  As a result, we cannot be sure as to the accuracy or completeness
of our market information.
    
   
     INADEQUATE PROVENTRA PRODUCTION COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR
BUSINESS AND FINANCIAL CONDITION.
    
   
     Given our limited experience in manufacturing Proventra, we cannot be sure
that we will be successful in producing Proventra of acceptable quality on a
commercial scale and at acceptable costs in our pilot plant facility.  If we
cannot, our business and financial condition could be materially adversely
affected.  Our production of Proventra will be regulated by the Minnesota
Department of Agriculture. We believe that our current manufacturing facility
will meet the anticipated requirements for the production of Proventra for use
in consumer and clinical nutritional products through the year 2000.  Further,
we believe that contract manufacturers would be available to increase our
Proventra production capacity quickly, if required.  However, until we begin
producing Proventra on a commercial scale, we cannot be sure that our production
capabilities will be adequate
    
   
     FAILURE OF OUR COLLABORATIONS TO DEVELOP AND MARKET PRODUCTS CONTAINING
PROVENTRA COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND FINANCIAL
CONDITION.
    
   
     We are relying on collaborations with larger, more established companies to
develop and market products containing Proventra.  Our or our collaborators'
inability to bring products to market could have a material adverse effect on
our business and financial condition. We anticipate that products containing
Proventra will be introduced in particular markets in the last half of 1999
through collaborations we have established with other companies. However,
introduction of these products to test markets on schedule depends on our
ability and our collaborators' ability to accomplish the following:
    

                              6
<PAGE>
   
     -    finalize market research; 
     -    finalize product development; 
     -    establish product manufacturing; 
     -    initiate marketing, sales and distribution activities related to our
          products; and
     -    provide the funding necessary to accomplish these activities.
    
   
     DELAYS OR HIGH COSTS IN PRODUCT DEVELOPMENT COULD HAVE A MATERIAL ADVERSE
EFFECT ON OUR BUSINESS AND FINANCIAL CONDITION.
    
   
    
   
     If we, or our strategic partners, cannot obtain accurate marketing data or
develop a product responsive to the needs identified by that data, our business
and financial condition could be materially adversely affected. The amount of
time it will take us, together with our strategic  partners, to develop consumer
and clinical nutrition products and the associated costs of developing those
products depends on, among other things, the results of our market research for
consumer and clinical products.  It also depends on our discussions with end
users or  purchasers of the potential products. Market research and discussions
may give us indications of potential customers, what types of products they may
desire and what clinical information is necessary for effective marketing and
sales.
    
   
RISKS SPECIFIC TO FUNCTIONAL FOOD AND NUTRACEUTICAL PRODUCTS
    
   
     PUBLIC MISPERCEPTION THAT OUR PRODUCTS MAY NOT BE SAFE COULD HAVE A
MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND FINANCIAL CONDITION.
    
   
    
   
     We are highly dependent upon consumers' perception of the safety and
quality of our products as well as of similar products distributed by other
companies.  Thus, for example,the publication of reports asserting that such
products may be harmful could have a material adverse effect on our business and
financial condition, regardless of whether such reports are scientifically
supported and regardless of whether the alleged harmful effects would be present
at the dosages recommended for such products.
    
   
     INNOVATIVE INGREDIENTS MAY PRODUCE UNWANTED EFFECTS AND EXPOSE US TO
PRODUCT LIABILITY CLAIMS OR LOSS OF CONSUMER CONFIDENCE.
    
   
     If we develop products with innovative ingredients that over time are shown
to produce unwanted effects, we could be exposed to product liability claims and
lose consumer confidence, which could have a material adverse effect on our
business and financial condition.  Some of our future products may contain
innovative ingredients or combinations of ingredients that do not have a long
history of human consumption.  While we believe all of our products will be safe
when taken as we direct, there is little long-term experience with human
consumption of some of these innovative product ingredients or combinations of
these products in concentrated form.  Although we perform research and/or test
the formulation and production of our products, we will sponsor only limited
clinical studies or rely on other outside published data.  
    
   
     IF LARGER COMPANIES WITH GREATER ACCESS TO 
    
                              7
<PAGE>
   
CAPITAL AND PRODUCT MARKETS ENTER OUR SEGMENT OF THE NUTRITIONAL PRODUCTS 
MARKET, WE MAY BE MATERIALLY ADVERSELY AFFECTED.
    
   
     Increased competition in the nutritional products industry could have a
material adverse effect on our business and financial condition. Because the
industry generally has low barriers to entry, additional competitors could enter
the market at any time.
    
   
     Potential competitors could be larger than we are, have greater access to
capital than we do and may be better able to withstand volatile market
conditions than we are. Although the nutritional products industry to date has
been characterized by many relatively small participants, national or
international companies, including pharmaceutical companies or other suppliers
to mass merchandisers, may seek to enter or to increase their presence in this
industry or to consolidate it.
    
   
     OUR FAILURE TO OBTAIN NECESSARY APPROVALS OR OTHERWISE COMPLY WITH
GOVERNMENT REGULATIONS COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND
FINANCIAL CONDITION. 
    
   
     Our current and potential functional foods and nutraceutical products may
become subject to governmental regulation in the future. The burden of such
regulation could add materially to the costs and risks of our development and
marketing efforts. There can be no assurance that we could obtain the required
approvals or comply with new regulations if our products are subject to
additional governmental regulation in the future.
    
   
     Some of our products in development may be subject to regulation by one or
more federal agencies, principally the Food and Drug Administration and the
Federal Trade Commission, and to a lesser extent the Consumer Product Safety
Commission and the United States Department of Agriculture, regarding the
formulation, manufacturing, processing, packaging, labeling, advertising,
distribution and sale of nutritional supplements.  These activities are also
regulated by various governmental agencies for the states and localities in
which our products are sold, as well as by governmental agencies in foreign
countries in which our products are sold.  Among other matters, regulation by
the FDA and FTC is concerned with claims made with respect to a product which
refer to the value of the product in treating or preventing disease or other
adverse health conditions.
    
   
RISKS SPECIFIC TO CRITICAL CARE NUTRITION PRODUCTS
    
   
    
   
     IF WE DO NOT INCREASE THE SALES VOLUME OF OUR CRITICAL CARE NUTRITION
PRODUCTS, OUR BUSINESS AND FINANCIAL CONDITION MAY BE MATERIALLY ADVERSELY
AFFECTED..  
    
   
     Increasing the sales of our critical care nutrition products is an
important part of our business strategy.  If we are not successful in obtaining
these sales increases, our business and financial condition may be materially
adversely affected.  We acquired our current critical care enteral nutrition
products from Nutrition Medical on December 23, 1998.  Our ability to increase
sales levels of the acquired critical 
    
                              8
<PAGE>
   
care enteral nutrition products will depend on our ability to successfully 
complete clinical marketing studies and on our ability to effectively execute 
our operating sales and marketing plans.  We cannot be sure that we will 
succeed in increasing the sales of these products.
    
   
     IF OUR MARKETING EFFORTS DO NOT GENERATE THE NAME RECOGNITION FOR OUR
COMPANY AND OUR CRITICAL CARE PRODUCTS NECESSARY TO SIGNIFICANTLY ENHANCE
REVENUES, OUR BUSINESS AND FINANCIAL CONDITION MAY BE MATERIALLY ADVERSELY
AFFECTED
    
   
     We cannot be sure that our marketing efforts will achieve the name
recognition of our company and of our critical care nutrition products necessary
to significantly enhance revenues.  If they do not, our business and financial
condition could be materially adversely affected. Our products, with the
exception of Glutasorb-TM-, are designed to be substantially equivalent to
existing branded competitive products.  Although we believe that the quality and
efficacy of our critical care nutrition products are comparable to branded
competitive products, no independent comparison between our critical care
nutrition products and competitive products has been completed.  We cannot be
sure that the efficacy or quality of our critical care nutrition products is, or
will be, comparable to branded competitive products.  Furthermore, our name and
our products are relatively unknown to large segments of our target markets.  
    
   
     PRICE REDUCTIONS BY COMPETITORS COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR
BUSINESS AND FINANCIAL CONDITION.
    
   
     Much of our marketing strategy for our critical care nutrition products 
is focused on the price advantage of our critical care nutrition products.  
If a competitor reduces or eliminates the price advantage of our products, we 
cannot be sure that we will be able to compete successfully with the 
competitor, or operate profitably under such conditions.  If we could not,our 
business and financial condition could be materially adversely affected.  We 
believe that the principal advantage of our critical care nutrition products, 
with the exception of Glutasorb, is cost effectiveness.  Because these 
products were only recently acquired, we have not yet experienced any 
competitor lowering its prices to offset any price advantage we may have.  We 
are aware that while the products were owned by Nutrition Medical, at least 
one competitor in the critical care nutrition products market lowered prices 
to various customers of some branded products to levels that offset all or 
part of the price advantage held by Nutrition Medical.  We believe that any 
selective price reductions by a competitor may result in lost sales of our 
competing products.  
    
   
     IF THE CONTRACT MANUFACTURERS THAT PRODUCE OUR PRODUCTS CANNOT DO SO
ADEQUATELY, OUR BUSINESS AND FINANCIAL CONDITION MAY BE MATERIALLY ADVERSELY
AFFECTED
    
   
     We rely on contract manufacturers to produce our critical care nutrition
products according to our specifications.  Any interruption in supply from these
manufacturers of any of our products could have a material adverse effect on our
business and financial condition. We cannot be sure that contract manufacturers
will consistently supply adequate quantities of our products on a timely basis
or that the quality of such products will be consistently maintained.  We also
rely on these manufacturers to comply with all applicable government regulations
and manufacturing guidelines.  We cannot be sure 
    
                                    9
<PAGE>
   
these contract manufacturers will consistently comply with government 
regulations.  In the event of a sale of a defective product, we would be 
exposed to product liability claims and could lose customer confidence.  In 
addition, minimum quantity order requirements imposed by manufacturers may 
result in excess inventory levels, requiring additional working capital and 
increasing exposure to losses from inventory obsolescence. 
    
   
     BECAUSE THE WAY WE DISTRIBUTE OUR PRODUCTS MAY RESULT IN A RELATIVELY SMALL
NUMBER OF CUSTOMERS, THE LOSS OF PARTICULAR CUSTOMERS COULD HAVE A MATERIAL
ADVERSE EFFECT ON OUR BUSINESS AND FINANCIAL CONDITION.
    
   
    
   
     Our critical care nutrition product sales may become concentrated with a
few large distributors and customers.  We cannot be sure that orders from such
customers will continue or that our future orders will not significantly
decline, which could have a material adverse effect on our business and
financial condition.
    
   
     WE MAY BECOME INVOLVED IN LITIGATION WITH COMPETITORS THAT MAY HAVE A
MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND FINANCIAL CONDITION.
    
   
     Companies in the private label industry are commonly the subject of claims
and lawsuits brought by brand name competitors alleging that the private label
products have formulas, labeling or packaging similar to competing brand name
products. Such litigation may require the commitment of substantial management
time and legal fees.  Accordingly, such litigation may have a material adverse
effect on our business and financial condition.  Several of the critical care
nutrition products we acquired from Nutrition Medical were the subject of a
lawsuit alleging patent infringement.  The suit was favorably resolved before we
acquired the products.  Similar claims may be made against us by competitors in
the future.  Competitors may also respond to our marketing strategy by more
aggressively seeking patents on their products to limit our future product
development efforts.  If similar infringement allegations are made against us in
the future, we may need to reformulate or repackage some of our current and
future products to allow us to continue to market products that are comparable
to competitors' patented products. We may be unable to effectively reformulate
our products. Furthermore, we cannot be sure that a reformulated product would
be viewed by customers to be essentially equivalent to the patented product. 
Moreover, we cannot be sure that any future lawsuits could be satisfactorily
settled by reformulating, relabeling or repackaging a product.  
    
   
    
   
     DIRECT COMPETITION FROM LARGER COMPANIES WITH SIGNIFICANT FINANCIAL
RESOURCES MAY HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND FINANCIAL
CONDITION.
    
   
     Our competitors in the critical care nutrition products market are
established companies with significant financial resources.  These companies
sell branded products that have achieved a high level of customer awareness. If
we are not able to compete successfully or operate profitably in this market,
our business and financial condition could be materially adversely affected. 
Other companies may also enter this market.  
    
                                   10
<PAGE>
   
     IF WE CANNOT ENFORCE, FOR ANY REASON, THE TRADEMARKS THAT WE ACQUIRED FROM
NUTRITION MEDICAL,OUR BUSINESS AND FINANCIAL CONDITION MAY BE MATERIALLY
ADVERSELY AFFECTED.
    
   
     We cannot be sure that the trademarks we acquired from Nutrition Medical do
not or will not violate the proprietary rights of others.  Nor can we be sure
that our proprietary rights in the marks would be upheld if challenged.  If we
were prevented from using the marks for any reason,our business and financial
condition may be materially adversely affected.  In addition, we cannot be sure
that we will have the financial resources necessary to enforce or defend our
trademarks, which could also have a material adverse effect on our business and
financial condition. We are in the process of registering existing trademarks
for the products acquired from Nutrition Medical with the United States Patent &
Trademark Office.  As part of Nutrition Medical, the products were not
registered.  Instead Nutrition Medical relied on common law trademark rights.
The lack of such registration may impair our ability to successfully register
the trademarks or to prosecute successfully an infringement action against other
users of these trademarks.
    
   
     OUR FAILURE TO OBTAIN NECESSARY APPROVALS OR OTHERWISE COMPLY WITH
GOVERNMENT REGULATIONS COULD HAVE A MATERIAL ADVERSE EFFECT ON OUR BUSINESS AND
FINANCIAL CONDITION.
    
   
     Our critical care products and potential critical care products are, or
will be, subject to government regulation.  Our current products are regulated
as food and medical food by the FDA and are subject to labeling requirements,
current good manufacturing practice regulations and other regulations designed
to ensure the safety of the products. Our current and potential products may
become subject to further governmental regulation in the future.  The burden of
such regulation could add materially to the costs and risks of our development
and marketing efforts. There can be no assurance that we could obtain the
required approvals or comply with new regulations if our products are subject to
additional governmental regulation in the future.
    
   
     Claims we make in labeling and advertising our products are subject to
regulation by the FDA, the FTC and various state agencies under their general
authority to prevent false, misleading and deceptive trade practices.  These
regulations involve stringent tracking, testing and documentation standards. 
Failure to comply with such requirements can result in adverse regulatory
action, including injunctions, civil or criminal penalties, product recalls or
the relabeling, reformulation or possible termination of products.
    
   
    

                                    11
<PAGE>
                                          
                  PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY
   
     Our common stock is listed on the Nasdaq National Market under the symbol
GGEN.  The following table shows, for the calendar periods indicated, the
reported high and low sale prices of the common stock on the Nasdaq National
Market, as reported by the Nasdaq National Market.
    
   
<TABLE>
<CAPTION>
                                                  HIGH           LOW
                                               ---------     ----------
<S>                                             <C>            <C>
1997:
  First Quarter. . . . . . . . . . . . . .       $4.625         $1.750
  Second Quarter . . . . . . . . . . . . .        3.250          2.000
  Third Quarter. . . . . . . . . . . . . .        2.750          2.000
  Fourth Quarter . . . . . . . . . . . . .        2.375          1.500

1998:
  First Quarter. . . . . . . . . . . . . .       $2.250         $0.844
  Second Quarter . . . . . . . . . . . . .        3.313          1.563
  Third Quarter. . . . . . . . . . . . . .        4.000          1.625
  Fourth Quarter . . . . . . . . . . . . .        3.000          1.375

1999:
  First Quarter. . . . . . . . . . . . . .       $2.625         $1.750
  Second Quarter (through April 23, 1999).        2.063          1.625
</TABLE>
    
   
     As of April 23, 1999 there were 149 holders of record of our common stock.
    
   
     We have never declared or paid any cash dividends on our common Stock.  We
currently do not anticipate paying any cash dividends in the foreseeable future.
    
                                       12

<PAGE>
   
                                          
                                SELLING STOCKHOLDERS
    
   
     The following table presents the number of outstanding shares of our common
stock beneficially owned by the selling stockholders as of April 23, 1999.  The
table also presents the maximum number of shares proposed to be sold by the
selling stockholders and the number of shares they will own after the sales. 
The percentages are based on  10,298,996 shares outstanding on April 23, 1999.
    
   
<TABLE>
<CAPTION>
                                       SHARES OWNED                            SHARES OWNED
                                     PRIOR TO OFFERING                      AFTER OFFERING (1)
                                 -------------------------                -----------------------
                                               PERCENT OF      SHARES                 PERCENT OF
       NAME                       NUMBER       OUTSTANDING    OFFERED      NUMBER     OUTSTANDING
- ----------------------------  ----------      ------------  ---------     -------     ------------
<S>                           <C>              <C>          <C>           <C>          <C>
NM Holdings, Inc.                318,800            3.1        318,800         0             --

Lombard Odier & Cie            1,015,800            9.9      1,015,000         0             --

H. Leigh Severance                50,000              *         50,000         0             --

H. L. Severance, Inc. Profit
Sharing Plan and Trust            35,000              *         35,000         0             --

H. L. Severance, Inc.
Pension Plan and Trust            15,000              *         15,000         0             --

Winston R. Wallin (2)            254,605            2.5        200,000    54,605              *
</TABLE>
- -------------------------
*Less than 1%.
    
   
(1)  Assumes sale of all shares of the selling stockholders being offered.
    
   
(2)  Includes 17,635 shares and a warrant to purchase 1,805 shares beneficially
     owned by The Wallin Foundation.  Mr. Wallin disclaims beneficial ownership
     of these shares.  Mr. Wallin has been on our Board of Directors since 1993.
    
   
                                PLAN OF DISTRIBUTION
    
   
     The selling stockholders may sell the shares being offered from time to
time in one or more transactions:
    
                                      13
<PAGE>
   
     -    on the Nasdaq National Market or otherwise;
     -    in the over-the-counter market;
     -    in negotiated transactions;
     -    through the writing of options on shares, whether the options are
          listed on an options exchange or otherwise; or
     -    a combination of such methods of sale.
    
   
     The selling stockholders may sell the shares at market prices prevailing 
at the time of sale, at prices related to those market prices or at 
negotiated prices.  The selling stockholders also may sell the shares 
pursuant to Rule 144 adopted under the Securities Act of 1933 as permitted by 
that Rule.  The selling stockholders may effect transactions by selling 
shares directly to purchasers or to or through broker-dealers.  The 
broker-dealers may act as agents or principals. The broker-dealers may 
receive compensation in the form of discounts, concessions or commissions 
from the selling stockholders or the purchasers of the shares.  The 
compensation of any particular broker-dealer may be in excess of customary 
commissions.  The selling stockholders and broker-dealers that participate 
with the selling stockholders in the distribution of shares may be deemed to 
be "underwriters" within the meaning of Section 2(11) of the Securities Act.  
Any commissions received by them and any profit on the resale of shares may 
be deemed to be underwriting compensation.  We have informed the selling 
stockholders that the anti-manipulative provisions of Regulation M 
promulgated under the Securities Exchange Act of 1934  may apply to their 
sales of shares in the market.
    
   
     Upon notification to us by a selling stockholder that any material 
arrangement has been entered into with a broker-dealer for the sale  or 
purchase of shares, a supplement to this prospectus will be filed, if 
required, disclosing:
    
   
     -    the name of the participating broker-dealers;
     -    the number of shares involved;
     -    the price at which such shares were sold;
     -    the commissions paid or discounts or concessions allowed to such
          broker-dealers, where applicable;
     -    that such broker-dealers did not conduct any investigation to verify
          the information set out or incorporated by reference in this
          prospectus; and
     -    other facts material to the transaction.
    
   
     NM Holdings, one of the selling stockholders, has agreed to limit its sales
of shares offered by this prospectus as follows:
    
   
     -    immediately upon effectiveness of the registration statement to which
          this prospectus relates, it may sell up to 10% of the offered shares;
     -    during each month of December 1998 through May 1999 it may sell up to
          an additional 5% of the offered shares per month; and
    

                                      14
<PAGE>
   

     -    during each month of June 1999 through November 1999 it may sell up to
          an additional 10% of the offered shares per month.
    
   
    
   
     We may suspend sales of shares offered by this prospectus for a limited 
time, according to the terms of the purchase agreements relating to the 
shares. We will promptly notify the selling stockholders any time sales of 
shares are suspended and will promptly notify the selling stockholders of the 
termination of any such suspension.
    
                                       15
<PAGE>

                                          
                        WHERE YOU CAN FIND MORE INFORMATION
   
     We file annual, quarterly and special reports, proxy statements and other
information with the Securities and Exchange Commission.  Our SEC filings are
available to the public over the Internet at the SEC's web site at
http://www.sec.gov.  You may also read and copy any document we file with the
SEC at its Public Reference Room at 450 Fifth Street, N.W., Washington, D.C.
20549.  You can also obtain copies of the documents at prescribed rates by
writing to the Public Reference Section of the SEC at 450 Fifth Street, N.W.,
Washington, D.C. 20549.  Please call the SEC at 1-800-SEC-0330 for further
information on the operation of its Public Reference Room.  Our SEC filings are
also available at the office of the National Association of Securities Dealers,
Inc.  For more information on obtaining copies of our public filings at the
National Association of Securities Dealers, Inc., you should write to National
Association of Securities Dealers, Inc., 1735 K Street, N.W., Washington, D.C.
20006.
    
   
     We "incorporate by reference" into this prospectus the information we file
with the SEC, which means that we can disclose important information to you by
referring you to those documents.  The information incorporated by reference is
an important part of this prospectus and information that we file subsequently
with the SEC will automatically update this prospectus.  We incorporate by
reference the documents listed below and any filings we make with the SEC under
Sections 13(a), 13(c), 14, or 15(d) of the Securities Exchange Act of 1934 after
the initial filing of the registration statement that contains this prospectus
and prior to the time that all the securities offered by this prospectus are
sold:
    
   
     -    Annual Report on Form 10-K for the year ended December 31, 1998
          (including information specifically incorporated by reference into our
          Form 10-K from our 1998 Annual Report to Shareholders and our
          definitive Notice and Proxy Statement for our 1999 Annual Meeting of
          Shareholders); and
    
   
    
   
     -    the description of our common stock contained in the registration
          statement on Form 8-A filed on March 13, 1996 and any amendment or
          reports filed to update that description after the date of this
          prospectus.
    

     You may request a copy of these filings (other than an exhibit to a filing
unless that exhibit is specifically incorporated by reference into that filing)
at no cost, by writing to or telephoning us at the following address:
   
                    Mr. Robert A. Hoerr, M.D., Ph.D.
                    Chairman of the Board of Directors 
                     and Chief Executive Officer
                    GalaGen Inc.
                    1275 Red Fox Road
                    Arden Hills, Minnesota 55112
                    (651) 634-4230
    
   
     You should rely only on the information incorporated by reference or
presented in this prospectus.  We have not authorized anyone else to provide you
with different information. We are only offering these securities in states
where the offer is permitted.  You should not assume that the information in
this prospectus is accurate as of any date other than the date on the cover
page of this prospectus.
    
                                       16
<PAGE>

                                   LEGAL OPINIONS
   
     Faegre & Benson LLP, 2200 Norwest Center, Minneapolis, Minnesota 55402 will
pass upon the validity of the shares of common stock offered  by this
prospectus.
    
                                      EXPERTS
   
     Ernst & Young LLP, independent auditors, have audited our financial
statements appearing in our Annual Report on Form 10-K for the year ended
December 31, 1998, as set forth in their report thereon included in that Report
and incorporated in this prospectus by reference.  Those financial statements
are incorporated in this Prospectus by reference in reliance upon their report
given upon their authority as experts in accounting and auditing.
    
                                       17
<PAGE>


                                       PART II

                       INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.       OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
   
          Expenses in connection with the issuance and distribution of the
shares of common Stock being registered hereunder other than underwriting
commissions and expenses, are estimated below.
    
   
<TABLE>
        <S>                                       <C>
        SEC registration fee . . . . . . . . . .   $        808
        Nasdaq listing fee . . . . . . . . . . .         17,500
        Legal services and expenses. . . . . . .         65,000
        Accounting services and expenses . . . .          1,000
        Printing fees. . . . . . . . . . . . . .            500
        Miscellaneous. . . . . . . . . . . . . .          5,192
                                                ---------------
        Total                                      $     90,000
                                                ---------------
                                                ---------------
</TABLE>
    
   
          Except for the SEC registration fee and the Nasdaq listing fee, all of
the foregoing expenses have been estimated.  The selling stockholders will bear
fees and disbursements of their own legal counsel and transfer taxes, provided,
however, that the Registrant will pay up to $1,250 of the expenses for legal
counsel to NM Holdings in connection with the registration of this offering. 
The Registrant will bear all other expenses.
    

ITEM 15.       INDEMNIFICATION OF DIRECTORS AND OFFICERS

          Under Delaware law, a corporation may indemnify any person who was or
is a party or is threatened to be made a party to an action (other than an
action by or in the right of the corporation) by reason of his or her services
as a director or officer of the corporation, or his or her service, at the
corporation's request, as a director, officer, employee or agent of another
corporation or other enterprise, against expenses (including attorneys' fees)
that are actually and reasonably incurred by him or her ("Expenses"), and
judgments, fines and amounts paid in settlement that are actually and reasonably
incurred by him or her, in connection with the defense or settlement of such
action, provided that he or she acted in good faith and in a manner he or she
reasonably believed to be in or not opposed to the corporation's best interests,
and, with respect to any criminal action or proceeding, had no reasonable cause
to believe that his or her conduct was unlawful.  Although Delaware law permits
a corporation to indemnify any person referred to above against Expenses in
connection with the defense or settlement of an action by or in the right of the
corporation, provided that he or she acted in good faith and in a manner he or
she reasonably believed to be in or not opposed to the corporation's best
interests, if such person has been judged liable to the corporation,
indemnification is only permitted to the extent that the Court of Chancery (or
the court in which the action was brought) determines that, despite the
adjudication of liability, such person is entitled to indemnity for such
Expenses as the court deems proper.  The General Corporation Law of the State of
Delaware also provides for mandatory indemnification of any director, officer,
employee or agent against Expenses to the extent such person has been successful
in any proceeding covered by the statute.  In addition, the General Corporation
Law of the State of Delaware provides for the general authorization of
advancement of a director's or officer's litigation Expenses in lieu of
requiring the authorization of such advancement by the board of directors in
specific cases, and that indemnification and advancement of Expenses provided by
the statute shall not be deemed exclusive of any other rights to which those
seeking indemnification of Expenses may be entitled under any bylaw, agreement
or otherwise.

   
          The Restated Certificate of Incorporation of the Registrant eliminates
the personal liability of a director to the Registrant or its stockholders for
monetary damages for breach of fiduciary duty as a director, except under
certain circumstances involving certain wrongful acts such as breach of a
director's duty of loyalty, acts or omissions not in good faith or which involve
intentional misconduct or a knowing violation of law, for any unlawful acts
under Section 174 of the General Corporation Law of the State of Delaware, or
for any transaction from which a director derives an improper personal benefit. 
The  Registrant's Restated Certificate of Incorporation and Restated Bylaws
provide for the broad indemnification of the directors and officers of the
Registrant and for advancement of litigation expenses to the fullest extent
required or permitted by current Delaware law.
    

   
          Under the purchase agreement filed as Exhibit 4.2 hereto and the
Registration Rights Agreement filed as Exhibit 4.5 hereto, the selling
stockholders agree to indemnify, under certain conditions, the Registrant, its
directors, certain of its officers and persons who control the Registrant within
the meaning of the Securities Act of 1933, as amended, against certain
liabilities.
    
                                       II-1
<PAGE>
   
ITEM 16.       EXHIBITS

<TABLE>
<CAPTION>
Exhibit
Number
- -------
<S>        <C>
3.1        Restated Certificate of Incorporation of the Registrant. (1)
3.2        Restated Bylaws of the Registrant. (2)
4.1        Specimen Common Stock Certificate. (3)
4.2        Asset Purchase Agreement by and between the Registrant and Nutrition
           Medical, Inc. dated as of September 1, 1998. (4)
4.3        Amendment to Asset Purchase Agreement by and between the Registrant and
           Nutrition Medical, Inc. dated as of October 28, 1998. (5)
4.4        Second Amendment to Asset Purchase Agreement by and between the
           Registrant and Nutrition Medical, Inc. dated as of December 23, 1998.
           (6)
4.5        Form of Registration Rights Agreement dated April 20, 1999.
4.6        Subscription Agreement and Investment Letter dated April 20, 1999
           (Lombard Odier & Cie).
4.7        Subscription Agreement and Investment Letter dated April 20, 1999 
           (H. Leigh Severance).
4.8        Subscription Agreement and Investment Letter dated April 20, 1999 
           (H. L. Severance, Inc. Profit Sharing Plan and Trust).
4.9        Subscription Agreement and Investment Letter dated April 20, 1999 
           (H. L. Severance, Inc. Pension Plan and Trust).
4.10       Subscription Agreement and Investment Letter dated April 20, 1999
           (Winston R. Wallin).
5          Opinion of Faegre & Benson LLP. (7)
23.1       Consent of Ernst & Young LLP. (7)
23.2       Consent of Faegre & Benson LLP (included in Exhibit 5).
24         Powers of Attorney of directors and officers of the  Registrant. (7)
</TABLE>
- -------------------------
    
   
     (1)  Incorporated herein by reference to Exhibit No. 3.2 to the 
          Registrant's Quarterly Report on Form 10-Q for the quarterly period
          ended September 30, 1996 (File No. 0-27976).
    
   
     (2)  Incorporated by reference to Exhibit No. 3.4 of the Registrant's
          Registration Statement on Form S-1 (Registration No. 333-1032)
    
   
     (3)  Incorporated herein by reference to the same numbered Exhibit to the 
          Registrant's Registration Statement on Form S-1 (Registration No. 
          333-1032).
    
   
     (4)  Incorporated herein by reference to Exhibit No. 10.26 to the 
          Registrant's Quarterly Report on Form 10-Q for the quarterly period
          ending September 30, 1998 (File No. 0-27976).
    
   
     (5)  Incorporated herein by reference to Exhibit No. 2.2 to the 
          Registrant's Current Report on Form 8-K dated December 23, 1998 (File
          No. 0-27976).
    
   
     (6)  Incorporated herein by reference to Exhibit No. 2.3 to the 
          Registrant's Current Report on Form 8-K dated December 23, 1998 (File
          No. 0-27976).
    
   
     (7)  Filed with original filing.
    

ITEM 17.       UNDERTAKINGS.

          The undersigned Registrant hereby undertakes:
   
          (1)  To file, during any period in which offers or sales are being
     made, a post-effective amendment to this Registration Statement (i) to
     include any prospectus required by Section 10(a)(3) of the Securities Act
     of 1933, (ii) to reflect in the prospectus any facts or events arising
     after the effective date of the Registration Statement (or the most recent
     post-effective amendment thereof) which, individually or in the aggregate,
     represent a fundamental change in the information set forth in the
     Registration Statement, and (iii) to include any material information with
     respect to the plan of distribution not previously disclosed in the
     Registration Statement or any material change to such information in the
     Registration Statement provided, however, that paragraphs (1)(i) and
     (1)(ii) do not apply if the information required to be included in a post-
     effective amendment by those paragraphs is contained in periodic reports
     filed by the Registrant pursuant to Section 13 or 15(d) of the Securities
     Exchange Act of 1934 that are incorporated by reference in the Registration
     Statement.
    

          (2)  That, for the purpose of determining any liability under the
     Securities Act of 1933, each such post-effective amendment shall be deemed
     to be a new registration statement relating to the securities offered
     therein, and the offering of such securities at that time shall be deemed
     to be the initial bona fide offering thereof.

                                       II-2
<PAGE>

          (3)  To remove from registration by means of a post-effective
     amendment any of the securities being registered which remain unsold at the
     termination of the offering.
   
          The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the 
Registrant's annual report pursuant to Section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and each filing of an employee benefit plan's
annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934)
that is incorporated by reference in the Registration Statement shall be deemed
to be a new registration statement relating to the securities offered herein,
and the offering of such securities at that time shall be deemed to be the
initial BONA FIDE offering thereof.
    

          Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the Registrant pursuant to the foregoing provisions, or otherwise,
the Registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.

                                       II-3
<PAGE>


                                    SIGNATURES
   
          Pursuant to the requirements of the Securities Act of 1933, the
undersigned Registrant certifies that it has reasonable grounds to believe it
meets all of the requirements for filing on Form S-3 and has duly caused this
Amendment No. 2 to the Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Arden Hills, State of
Minnesota, on May 3, 1999.
    
   
                                       GALAGEN, INC.
                                       (Registrant)
                              
                              
                                        By /s/ Robert A. Hoerr
                                           ------------------------------------
                                           Robert A. Hoerr, M.D., Ph.D.
                                           CHAIRMAN OF THE BOARD OF DIRECTORS 
                                           AND CHIEF EXECUTIVE OFFICER
    
   
          Pursuant to the requirements of the Securities Act of 1933, this
Amendment has been signed below by the following persons, representing a
majority of the Board of Directors, in the capacities indicated as of May 3,
1999.
    
   
<TABLE>
<CAPTION>
          NAME                                    TITLE
<S>                                <C>
/s/ Robert A. Hoerr
- ---------------------------
Robert A. Hoerr, M.D., Ph.D.       Chairman of the Board of Directors and
                                   Chief Executive Officer and Director
                                   (Principal Executive Officer)


             *         
- -----------------------------
     Henry J. Cardello             President and Director (acting Principal
                                   Financial Officer and Principal Accounting
                                   Officer)

             *         
- -----------------------------
       Ronald O. Ostby             Director
</TABLE>
    
   
*Robert A. Hoerr, M.D., Ph.D., by signing his name hereto, does hereby sign this
document on behalf of himself and each of the other above-named directors and
officers of the Registrant pursuant to powers of attorney duly executed by such
person.
    
   
/s/ Robert A. Hoerr
- ----------------------------------
   Robert A. Hoerr, M.D., Ph.D.  
    

                                       II-4
<PAGE>

                                    EXHIBIT INDEX
   
<TABLE>
EXHIBIT   DESCRIPTION                                      PAGE 
- -------   --------------------------------------  -------------------------
<S>       <C>                                     <C>
3.1       Restated Certificate of Incorporation   Incorporated by Reference
          of the Registrant. (1)
3.2       Restated Bylaws of the  Registrant. (2) Incorporated by Reference
4.1       Specimen Common Stock Certificate. (3)  Incorporated by Reference
4.2       Asset Purchase Agreement by and         Incorporated by Reference
          between the Registrant and Nutrition 
          Medical, Inc. dated as of 
          September 1, 1998. (4)                  
4.3       Amendment to Asset Purchase Agreement   Incorporated by Reference
          by and between the Registrant and 
          Nutrition Medical, Inc. dated as of 
          October 28, 1998. (5)                   
4.4       Second Amendment to Asset Purchase      Incorporated by Reference
          Agreement by and between the 
          Registrant and Nutrition Medical, 
          Inc. dated as of December 23, 1998. (6) 
4.5       Form of Registration Rights Agreement   Filed Electronically
          dated April 20, 1999
4.6       Subscription Agreement and Investment   Filed Electronically
          Letter dated April 20, 1999 
          (Lombard Odier & Cie)
4.7       Subscription Agreement and Investment   Filed Electronically
          Letter dated April 20, 1999 
          (H. Leigh Severance)                    
4.8       Subscription Agreement and Investment   Filed Electronically
          Letter dated April 20, 1999 (H. L. 
          Severance, Inc. Profit Sharing Plan 
          and Trust)
4.9       Subscription Agreement and Investment   Filed Electronically
          Letter dated April 20, 1999 (H. L. 
          Severance, Inc. Pension Plan and Trust) 
4.10      Subscription Agreement and Investment   Filed Electronically
          Letter dated April 20, 1999 
          (Winston R. Wallin)
5         Opinion of Faegre & Benson LLP.         Previously Filed Electronically
23.1      Consent of Ernst & Young LLP.           Previously Filed Electronically
23.2      Consent of Faegre & Benson LLP          Previously Filed Electronically
          (included in Exhibit 5).                
24        Powers of Attorney of directors and     Previously Filed Electronically
          officers of the  Registrant.            
</TABLE>
    
- ---------------------------
   
     (1)  Incorporated herein by reference to Exhibit No. 3.2 to the 
          Registrant's Quarterly Report on Form 10-Q for the quarterly period
          ended September 30, 1996 (File No. 0-27976).
    
   
     (2)  Incorporated by reference to Exhibit No. 3.4 of the Registrant's
          Registration Statement on Form S-1 (Registration No. 333-1032)
    
   
     (3)  Incorporated herein by reference to the same numbered Exhibit to the 
          Registrant's Registration Statement on Form S-1 (Registration 
          No. 333-1032).
    
   
     (4)  Incorporated herein by reference to Exhibit No. 10.26 to the 
          Registrant's Quarterly Report on Form 10-Q for the quarterly period
          ending September 30, 1998 (File No. 0-27976).
    
   
     (5)  Incorporated herein by reference to Exhibit No. 2.2 to the 
          Registrant's Current Report on Form 8-K dated December 23, 1998 (File
          No. 0-27976).
    
   
     (6)  Incorporated herein by reference to Exhibit No. 2.3 to the 
          Registrant's Current Report on Form 8-K dated December 23, 1998 (File
          No. 0-27976).
    

<PAGE>

                                                                     EXHIBIT 4.5

                                REGISTRATION RIGHTS


                           REGISTRATION RIGHTS AGREEMENT


          THIS REGISTRATION RIGHTS AGREEMENT, dated the ____ of April, 1999,
between ____________________ (the "Holder") and GALAGEN INC., a Delaware
corporation (the "Company").

          WHEREAS, simultaneously with the execution and delivery of this
Agreement, the Holder is purchasing from the Company, pursuant to a Subscription
Agreement and Investment Letter of even date herewith (the "Subscription
Agreement"), shares of Common Stock of the Company (the "Shares"); and

          WHEREAS, the Company desires to grant to the Holder the registration
rights set forth herein with respect to the Shares;

          NOW, THEREFORE, the parties hereto mutually agree as follows:

          Section 1.  REGISTRABLE SECURITIES.  As used herein the term
"Registrable Security" means the Shares; provided, however, that with respect to
any particular Registrable Security, such security shall cease to be a
Registrable Security when, as of the date of determination, (i) it has been
effectively registered under the Securities Act of 1933, as amended (the "Act"),
and disposed of pursuant thereto, (ii) registration under the Act is no longer
required for the immediate public distribution of such security as a result of
the provisions of Rule 144(k) promulgated under the Act, or (iii) it has ceased
to be outstanding.  The term "Registrable Securities" means any and/or all of
the securities falling within the foregoing definition of a "Registrable
Security."  In the event  of any merger, reorganization, consolidation,
recapitalization or other change in corporate structure affecting the Common
Stock of the Company, such adjustment shall be made in the definition of
"Registrable Security" as is appropriate in order to prevent any dilution or
enlargement of the rights granted pursuant to this Section 1.

          Section 2.  RESTRICTIONS ON TRANSFER.  The Holder acknowledges and
understands that prior to the registration of the Shares as provided herein, the
Shares are "restricted securities" as defined in Rule 144 promulgated under the
Act.  The Holder understands that no disposition or transfer of the Shares may
be made by Holder in the absence of (i) an opinion of counsel from counsel to
the Holder, which opinion and counsel shall be reasonably satisfactory to the
Company and its counsel, that such transfer may be made without registration
under the Act or (ii) such registration.

          Section 3.  REGISTRATION RIGHTS.

               (a)  The Company shall, within four months of the date hereof,
file with the Securities and Exchange Commission (the "Commission"), at the sole
expense of the 



<PAGE>


Company (except as provided in Section 3(c) hereof), in respect
of all Registrable Securities, a registration statement under the Act so as to
permit a public offering and sale of the Registrable Securities under the Act
(the "Registration Statement"). 

               (b)  The Company will keep any Registration Statement or
post-effective amendment filed under this Section 3 current under the Act until
the earliest of (i) the date that all of the Registrable Securities have been
sold pursuant to the Registration Statement, (ii) the date that the Registrable
Securities may be sold under the provisions of Rule 144(k) or (iii) the second
anniversary of the effective date of the Registration Statement.

               (c)  Except as otherwise provided in Section 9 hereof, all fees,
disbursements and out-of-pocket expenses and costs incurred by the Company in
connection with the preparation and filing of any Registration Statement under
subparagraph 3(a) and in complying with applicable securities and Blue Sky laws
(including, without limitation, all attorneys' fees) shall be borne by the
Company.  The Holder shall bear the cost of underwriting discounts and
commissions, if any, applicable to the Registrable Securities being registered
and the fees and expenses of its counsel.  The Company shall use its best
efforts to qualify any of the Registrable Securities for sale in such states as
the Holder reasonably designates and shall furnish indemnification in the manner
provided in Section 6 hereof.  However, the Company shall not be required to
qualify in any state which will require an escrow or other restriction relating
to the Company and/or the sellers.  The Company at its expense will supply the
Holder with copies of the Registration Statement and the prospectus included
therein (the "Prospectus") and other related documents in such quantities as may
be reasonably requested by the Holder.

               (d)  No provision contained herein shall preclude the Company
from selling securities pursuant to any Registration Statement in which it is
required to include Registrable Securities pursuant to this Section 3.

               (e)  If, at any time or from time to time after the effective
date of the Registration Statement, the Company notifies the Holder in writing
of the existence of a Potential Material Event (as hereinafter defined), the
Holder shall not offer or sell any Registrable Securities or engage in any other
transaction involving or relating to Registrable Securities, from the time of
the giving of notice with respect to a Potential Material Event until the Holder
receives written notice from the Company that such Potential Material Event
either has been disclosed to the public or no longer constitutes a Potential
Material Event; PROVIDED, HOWEVER, that the Company may not so suspend the
rights of the Holder for more than one (1) thirty (30) day period and one (1)
twenty (20) day period in the aggregate during any twelve month period, with at
least a ten (10) business day interval between such periods, during the period
the Registration Statement is required to be in effect.

          "Potential Material Event" means any of the following: (a) the
possession by the Company of material information not ripe for disclosure in a
registration statement (including disclosure to be made in a document filed
pursuant to the Securities Exchange Act of 1934, as amended, and incorporated by
reference into such registration statement (an "Incorporated Document")), which
shall be evidenced by determinations in good faith by the Chief Executive
Officer or the Board of Directors of the Company that disclosure of such
information in the 


                                       2


<PAGE>

Registration Statement (or in an Incorporated Document) would
be detrimental to the business and affairs of the Company; or (b) any material
engagement or activity by the Company which would, in the good faith
determination of the Chief Executive Officer or the Board of Directors of the
Company, be adversely affected by disclosure in a registration statement
(including disclosure to be made in an Incorporated Document) at such time,
which determination shall be accompanied by a good faith determination by the
Chief Executive Officer or the Board of Directors of the Company that the
Registration Statement (including any Incorporated Documents) would be
materially misleading absent the inclusion of such information.

          Section 4.  COOPERATION WITH COMPANY.  The Holder will cooperate with
the Company in all respects in connection with this Agreement, including timely
supplying all information reasonably requested by the Company and executing and
returning all documents reasonably requested in connection with the registration
and sale of the Registrable Securities.

          Section 5.  REGISTRATION PROCEDURES.  In connection with the
registration of the Registrable Securities under the Act, the Company shall
(except as otherwise provided in this Agreement), as expeditiously as possible:

               (a)  prepare and file with the Commission such amendments and
supplements to the Registration Statement and the Prospectus as may be necessary
to keep the Registration Statement effective and to comply with the provisions
of the Act with respect to the sale or other disposition of all securities
covered by the Registration Statement whenever the Holder of the Registrable
Securities shall desire to sell or otherwise dispose of the same (including
prospectus supplements with respect to the sales of securities from time to time
pursuant to Rule 415 promulgated under the Act);

               (b)  furnish to the Holder such numbers of copies of the
Prospectus, including any amendment or supplement thereto, in conformity with
the requirements of the Act, as the Holder may reasonably request in order to
facilitate the public sale or other disposition of the Registrable Securities
owned by the Holder;

               (c)  use its best efforts to register and qualify the Registrable
Securities covered by the Registration Statement under such other securities or
blue sky laws of such jurisdictions as the Holder shall reasonably request
(subject to the limitations set forth in Section 3(c) above), and do any and all
other acts and things which may be necessary or advisable to enable the Holder
to consummate the public sale or other disposition in such jurisdiction of the
Registrable Securities owned by the Holder, except that the Company shall not
for any such purpose be required to qualify to do business as a foreign
corporation in any jurisdiction wherein it is not so qualified or to file
therein any general consent to service of process;

               (d)  use its best efforts to list the Registrable Securities on
the Nasdaq National Market or other national securities exchange on which any
securities of the Company are then listed, if the listing of such securities is
then permitted under the rules of Nasdaq or of such exchange;


                                       3


<PAGE>

               (e)  enter into and perform its obligations under an underwriting
agreement, if the offering is an underwritten offering, in usual and customary
form, with the managing underwriter or underwriters of such underwritten
offering; and

               (f)  notify the Holder, at any time when a Prospectus relating
thereto covered by the Registration Statement is required to be delivered under
the Act, of the happening of any event of which it has knowledge as a result of
which the Prospectus included in the Registration Statement, as then in effect,
includes an untrue statement of a material fact or omits to state a material
fact required to be stated therein or necessary to make the statements therein
not misleading in the light of  the circumstances then existing.

          Section 6.  INDEMNIFICATION.

               (a)  In the event of the filing of any Registration Statement
with respect to Registrable Securities pursuant to Section 3 hereof, the Company
agrees to indemnify and hold harmless the Holder and each person, if any, who
controls the Holder within the meaning of the Act (the "Distributing Holder")
against any losses, claims, damages or liabilities, joint or several (which
shall, for all purposes of this Agreement, include, but not be limited to, all
costs of defense and investigation and all attorneys' fees), to which the
Distributing Holder may become subject, under the Act or otherwise, insofar as
such losses, claims, damages or liabilities (or actions in respect thereof)
arise out of or are based upon any untrue statement or alleged untrue statement
of any material fact contained in the Registration Statement, or any related
preliminary prospectus, Prospectus or amendment or supplement thereto, or arise
out of or are based upon the omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the statements
therein not misleading; provided, however, that the Company will not be liable
in any such case to the extent that any such loss, claim, damage or liability
arises out of or is based upon an untrue statement or alleged untrue statement
or omission or alleged omission made in such Registration Statement, preliminary
prospectus, Prospectus or amendment or supplement thereto in reliance upon, and
in conformity with, written information furnished to the Company by the
Distributing Holder specifically for use in the preparation thereof. This
Section 6(a) shall not inure to the benefit of any Distributing Holder with
respect to any person asserting such loss, claim, damage or liability who
purchased the Registrable Securities which are the subject thereof if the
Distributing Holder failed to send or give (in violation of the Act or the rules
and regulations promulgated thereunder) a copy of the Prospectus contained in
the Registration Statement to such person at or prior to the written
confirmation to such person of the sale of such Registrable Securities, where
the Distributing Holder was obligated to do so under the Act or the rules and
regulations promulgated thereunder.  This indemnity agreement will be in
addition to any liability which the Company may otherwise have.

               (b)  Each  Distributing Holder agrees that it will indemnify and
hold harmless the Company, and each officer and director of the Company or
person, if any, who controls the Company within the meaning of the Act, against
any losses, claims, damages or liabilities (which shall, for all purposes of
this Agreement, include, but not be limited to, all costs of defense and
investigation and all attorneys' fees) to which the Company or any such officer,
director or controlling person may become subject under the Act or otherwise,
insofar as such 


                                       4


<PAGE>


losses claims, damages or liabilities (or actions in respect thereof) arise 
out of or are based upon any untrue statement or alleged untrue statement of 
any material fact contained in the Registration Statement, or any related 
preliminary prospectus, Prospectus or amendment or supplement thereto, or 
arise out of or are based upon the omission or the alleged omission to state 
therein a material fact required to be stated therein or necessary to make 
the statements therein not misleading, but in each case only to the extent 
that such untrue statement or alleged untrue statement or omission or alleged 
omission was made in such Registration Statement, preliminary prospectus, 
Prospectus or amendment or supplement thereto in reliance upon, and in 
conformity with, written information furnished to the Company by such 
Distributing Holder specifically for use in the preparation thereof.  The 
indemnity obligation of the Distributing Holder set forth in this Section 
6(b) shall not exceed the proceeds received by the Distributing Holder upon a 
sale of Registrable Securities pursuant to the Registration Statement.  This 
indemnity agreement will be in addition to any liability which the 
Distributing Holder may otherwise have.

               (c)  Promptly after receipt by an indemnified party under this
Section 6 of notice of the commencement of any action, such indemnified party
will, if a claim in respect thereof is to be made against the indemnifying party
under this Section 6, notify the indemnifying party of the commencement thereof;
but the omission so to notify the indemnifying party will not relieve the
indemnifying party from any liability which it may have to any indemnified party
except to the extent the indemnified party's failure to so notify in breach of
this Section 6(c) materially prejudices the indemnifying party's ability to
defend such action or claim.  In case any such action is brought against any
indemnified party, and it notifies the indemnifying party of the commencement
thereof, the indemnifying party will be entitled to participate in, and, to the
extent that it may wish, jointly with any other indemnifying party similarly
notified, assume the defense thereof, subject to the provisions herein stated
and after notice from the indemnifying party to such indemnified party of its
election so to assume the defense thereof, the indemnifying party will not be
liable to such indemnified party under this Section 6 for any legal or other
expenses subsequently incurred by such indemnified party in connection with the
defense thereof other than reasonable costs of investigation, unless the
indemnifying party shall not pursue the action to its final conclusion.  The
indemnified party shall have the right to employ separate counsel in any such
action and to participate in the defense thereof, but the fees and expenses of
such counsel shall not be at the expense of the indemnifying party if the
indemnifying party has assumed the defense of the action with counsel reasonably
satisfactory to the indemnified party; provided that if the indemnified party is
the Distributing Holder, the fees and expenses of such counsel shall be at the
expense of the indemnifying party if (i) the employment of such counsel has been
specifically authorized in writing by the indemnifying party, or (ii) the named
parties to any such action (including any impleaded parties) include both the
Distributing Holder and the indemnifying party and the Distributing Holder shall
have been advised by such counsel that there may be one or more legal defenses
available to the indemnifying party different from or in conflict with any legal
defenses which may be available to the Distributing Holder (in which case the
indemnifying party shall not have the right to assume the defense of such action
on behalf of the Distributing Holder, it being understood, however, tha the
indemnifying party shall, in connection with any one such action or separate but
substantially similar or related actions in the same jurisdiction arising out of
the same general allegations or circumstances, be liable only for the reasonable
fees and 


                                       5


<PAGE>

expenses of one separate firm of attorneys for the Distributing Holder,
which firm shall be designated in writing by the Distributing Holder).  No
indemnifying party shall, without the written consent of the indemnified party,
effect the settlement or compromise of any action in respect of which
indemnification may be sought hereunder unless such settlement or compromise
includes an unconditional release of the indemnified party from all liability
arising out of such action or claim.

          Section 7.  CONTRIBUTION.  In order to provide for just and equitable
contribution under the Act in any case in which (i) the indemnified party makes
a claim for indemnification pursuant to Section 6 hereof but is judicially
determined (by the entry of a final judgment or decree by a court of competent
jurisdiction and the expiration of time to appeal or the denial of the last
right of appeal) that such indemnification may not be enforced in such case
notwithstanding the fact that the express provisions of Section 6 hereof provide
for indemnification in such case, or (ii) contribution under the Act may be
required on the part of any indemnified party, then the Company and the
applicable Distributing Holder shall contribute to the aggregate losses, claims,
damages or liabilities to which they may be subject (which shall, for all
purposes of this Agreement, include, but not be limited to, all costs of defense
and investigation and all attorneys' fees), in either such case (after
contribution from others) on the basis of relative fault as well as any other
relevant equitable considerations.  The relative fault shall be determined by
reference to, among other things, whether the untrue or alleged untrue statement
of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by the Company on the one hand or the applicable
Distributing Holder on the other hand, and the parties' relative intent,
knowledge, access to information and opportunity to correct or prevent such
statement or omission.   The Company and the Distributing Holder agree that it
would not be just and equitable if contribution pursuant to this Section 7 were
determined by pro rata allocation or by any other method of allocation which
does not take account of the equitable considerations referred to in this
Section 7.  The amount paid or payable by an indemnified party as a result of
the losses, claims, damages or liabilities (or actions in respect thereof)
referred to above in this Section 7 shall be deemed to include any legal or
other expenses reasonably incurred by such indemnified party in connection with
investigating or defending any such action or claim. No person guilty of
fraudulent misrepresentation (within the meaning of Section 11(f) of the Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.

          Section 8.  NOTICES.  Any notice pursuant to this Agreement by the
Company or by the Holder shall be in writing and shall be deemed to have been
duly given if delivered by (i) hand, (ii) by facsimile and followed by mail
delivery, (iii) if mailed by certified mail, return receipt requested, postage
prepaid, or (iv) if sent by overnight courier, addressed as follows:

               (a)  If to the Holder, to its, his or her address set forth on
the signature page of this Agreement.

               (b)  If to the Company, at GalaGen Inc., 1275 Red Fox Road, Arden
Hills, Minnesota 55112, Attn: Chief Executive Officer, (tele) (651) 634-4233,
(fax) (651) 634-4814,


                                       6


<PAGE>

or to such other address as any such party may designate by notice to the other
party.  Notices shall be deemed given at the time they are delivered personally
or five (5) days after they are mailed in the manner set forth above or two (2)
days after they are sent by overnight courier in the manner set forth above.  If
notice is delivered by facsimile to the Company and followed by mail, delivery
shall be deemed given two (2) days after such facsimile is sent.

          Section 9.  ASSIGNMENT.  This Agreement is binding upon and inures to
the benefit of the parties hereto and their respective heirs, successors and
permitted assigns. This Agreement cannot be assigned, amended or modified by the
parties hereto, except by written agreement executed by the parties; provided,
however, that in the event that the Holder transfers any of the Shares to an
Affiliate (as defined in Rule 405 under the Act) of the Holder in accordance
with the provisions of the Subscription Agreement, the Holder may, without the
consent of the Company, concurrently assign the rights under this Agreement with
respect to such Shares to such Affiliate if such Affiliate agrees to pay all
expenses incurred by the Company in connection with such transfer and assignment
including, without limitation, any expenses associated with amending the
Registration Statement.

          Section 10.  COUNTERPARTS.  This Agreement may be executed in
counterparts, each of which shall be deemed an original, but all of which
together shall constitute one and the same instrument. 

          Section 11.  HEADINGS.  The headings in this Agreement are for
reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.

          Section 12.  GOVERNING LAW, VENUE.  This Agreement shall be governed
by and construed in accordance with the laws of the State of Delaware applicable
to contracts made and to be performed entirely within such State, without regard
to its principles of conflicts of laws. 

          Section 13.  SEVERABILITY.  If any provision of this Agreement shall
for any reason be held invalid or unenforceable, such invalidity or
unenforceablity shall not affect any other provision hereof and this Agreement
shall be construed as if such invalid or unenforceable provision had never been
contained herein.


                                       7


<PAGE>


          IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be duly executed, on the day and year first above written.

                                             GALAGEN INC.



                                             By ________________________________
                                                Its ____________________________



                                             HOLDER:

                                             
                                             ___________________________________



                                             By ________________________________
                                                Its ____________________________

                                             Address: __________________________
                                             ___________________________________
                                             ___________________________________




                                       8








<PAGE>

                                                                     EXHIBIT 4.6
                                                                       [Lombard]

                             SUBSCRIPTION AGREEMENT AND
                                 INVESTMENT LETTER


GalaGen Inc.
1275 Red Fox Road
MS - 7420
Arden Hills, Minnesota 55112-6943


Gentlemen:

       The undersigned hereby subscribes for and offers to purchase from GalaGen
Inc., a Delaware corporation (the "Company"), 1,015,000 shares of Common Stock
of the Company, par value $.01 per share (the "Shares").  The undersigned
further understands that the offering is being made without registration of the
Shares under the Securities Act of 1933, as amended (the "Securities Act"), and
is being made only to "accredited investors" (as defined in Rule 501 of
Regulation D under the Securities Act).

       1.     PURCHASE PRICE.  Subject to the terms and conditions hereof, the
undersigned hereby irrevocably subscribes for the Shares for an aggregate
purchase price of $1,522,500, which amount is payable as described in Section 4
hereof.

       2.     ACCEPTANCE OF SUBSCRIPTION AND ISSUANCE OF SHARES.  It is
understood and agreed that the Company shall have the sole right, at its
complete discretion, to accept or reject this subscription, in whole or in part,
for any reason and that the same shall be deemed to be accepted by the Company
only when it is signed by a duly authorized officer of the Company and delivered
to the undersigned at the Closing referred to in Section 3 hereof. 
Notwithstanding anything in this Agreement to the contrary, the Company shall
have no obligation to issue any of the Shares to any person who is a resident of
a jurisdiction in which the issuance of Shares to such person would constitute a
violation of the securities, "blue sky" or other similar laws of such
jurisdiction (collectively referred to as the "State Securities Laws").

       3.     THE CLOSING.  The closing of the purchase and sale of the Shares
(the "Closing") shall take place on April 20, 1999 (the "Closing Date") and at a
place and at a time mutually agreed to by the Company and the undersigned.

       4.     PAYMENT FOR SHARES.  Payment for the Shares shall be received by
the Company from the undersigned by cashier's check or wire transfer of
immediately available funds at or prior to the Closing.  The Company shall
deliver the Shares to the undersigned at the Closing.



<PAGE>


       5.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company hereby
represents and warrants to the undersigned that:

              (a)    The Company is duly incorporated, validly existing and in
       good standing under the laws of the State of Delaware, with full power
       and authority to conduct its business as it is currently being conducted
       and to own its assets.  The Company is duly qualified as a foreign
       corporation to do business in each jurisdiction in which the ownership of
       its property or the conduct of its business requires such qualification,
       except where the failure to so qualify would not materially or adversely
       affect the Company, its business, assets, condition (financial or
       otherwise) or operations.

              (b)    The Company has all requisite authority to enter into this
       Agreement and the Registration Rights Agreement (as defined in
       Section 17) and to perform all the obligations required to be performed
       by the Company hereunder and thereunder.  All corporate action on the
       part of the Company, its officers, directors and stockholders necessary
       for the authorization, execution and delivery of this Agreement and the
       Registration Rights Agreement, the performance of all the Company's
       obligations hereunder and thereunder, and for the authorization,
       issuance, sale and delivery of the Shares has been taken or will be taken
       prior to the Closing.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the Company, shall, assuming
       due execution and delivery by the undersigned, constitute a valid and
       legally binding obligation of the Company enforceable in accordance with
       its terms, except as the enforceability hereof and thereof may be limited
       by bankruptcy, insolvency, moratorium, reorganization or other similar
       laws affecting the enforcement of creditors' rights generally, and except
       for judicial limitations on the enforcement of the remedy of specific
       performance and other equitable remedies.

              (c)    The Shares, when issued and paid for, will represent duly
       authorized, validly issued and fully paid and nonassessable shares of
       Common Stock of the Company, free of any liens, claims or encumbrances
       except for restrictions on transfer imposed by state and federal
       securities laws and except for the liens, claims and encumbrances created
       by the undersigned, and the issuance of the Shares is not subject to any
       preemptive right or right of first refusal that has not been waived.

              (d)    Assuming the accuracy of the representations and warranties
       of the undersigned contained in Section 6 hereof on the date hereof and
       on the Closing Date, the offer, issue, and sale of the Shares are exempt
       from the registration and prospectus delivery requirements of the
       Securities Act and have been registered or qualified (or are exempt from
       registration and qualification) under the registration, permit, or
       qualification requirements of all applicable State Securities Laws.


                                       2


<PAGE>


              (e)    The Company has furnished to the undersigned the Company's
       annual report on Form 10-K for the fiscal year ended December 31, 1998
       (the "SEC Document").  The Company warrants that, as of its date (or if
       amended, as of the date of such amendment), the SEC Document complied as
       to form in all material respects with the requirements of the Securities
       Exchange Act of 1934 (the "1934 Act"), and the information contained in
       such document, as of its date, did not contain any untrue statement of a
       material fact, and did not omit to state any material fact necessary to
       make any statement, in light of the circumstances under which such
       statement was made, not misleading.  The Company has not filed with the
       Securities and Exchange Commission (the "SEC") any reports under the 1934
       Act since the date of the SEC Document.

              (f)    The Company has, within the past twelve months, timely
       filed with the SEC all reports and other documents required to be so
       filed.

              (g)    The Company is authorized to issue 40,000,000 shares of
       Common Stock and 15,000,000 shares of Preferred Stock.  As of March 31,
       1999, there were 8,983,996 shares of Common Stock and no shares of
       Preferred Stock outstanding.  No shares of capital stock of the Company,
       or securities convertible into or exercisable for such capital stock,
       have been issued by the Company since March 31, 1999 except for issuances
       pursuant to the Company's equity compensation plans or pursuant to
       outstanding options, warrants, rights or convertible notes, in each case
       as disclosed in the SEC Document.  All outstanding shares of Common Stock
       have been duly authorized and validly issued and are fully paid and 
       non-assessable; and none of the outstanding shares of Common Stock were
       issued in violation of the preemptive rights, if any, of any stockholders
       of the Company.

              (h)    There is no action, suit or proceeding pending, or, to the
       Company's knowledge, threatened, against the Company (a) which questions
       the validity of this Agreement or the ability of the Company to
       consummate the transactions contemplated hereby or (b) which, singly or
       in the aggregate, if the subject of an unfavorable decision, ruling or
       finding, would materially adversely affect the business, properties,
       prospects, operations, or financial condition of the Company.

              (i)    To the Company's knowledge, there are no outstanding
       stockholder agreements, voting trusts, proxies or other arrangements or
       understandings among the stockholders of the Company relating to the
       voting of their respective shares other than proxies which have been or
       may be given in connection with the Company's annual meeting of
       stockholders and other than as disclosed in documents filed with the SEC
       pursuant to the Securities Exchange Act of 1934, as amended.

              (j)    The execution, delivery and performance of this Agreement
       and the Registration Rights Agreement and consummation of the
       transactions contemplated 


                                       3


<PAGE>


       hereby and thereby will not (a) violate or conflict with any provisions 
       of the Restated Certificate of Incorporation, as amended, or Bylaws of 
       the Company; (b) result in any breach, violation of or default or loss 
       of a benefit under, or conflict with, or permit the acceleration of any 
       obligation under (in each case, upon the giving of notice, the passage 
       of time, or both) any mortgage, indenture, lease, loan agreement or 
       other agreement or instrument, permit, franchise, license, judgment, 
       order, decree, law, ordinance, rule or regulation applicable to the 
       Company or its properties.

              (k)    All consents, approvals, orders, or authorizations of, or
       registrations, qualifications, designations, declarations, or filings
       with, any federal, state or local governmental authority, required on the
       part of the Company in connection with the valid execution, delivery and
       performance of this Agreement and the Registration Rights Agreement, the
       offer, sale or issuance of the Shares, or the consummation of any other
       transaction contemplated hereby and thereby, have been obtained, or will
       be effective at the Closing, except for notices required or permitted to
       be filed with certain state and federal securities commissions after the
       Closing, which notices will be filed on a timely basis and except for
       filings and such other actions required to be taken pursuant to the
       Registration Rights Agreement after the date hereof.

              (l)    Except as disclosed in or contemplated by the SEC Document
       and except for the repurchase from Chiron Corporation on April 1, 1999 of
       three warrants to purchase shares of Common Stock of the Company, each
       dated March 29, 1995, for $375,000, since December 31, 1998, the Company
       has not (i) incurred or become subject to any material liabilities
       (absolute or contingent) except liabilities incurred in the ordinary
       course of business, consistent with past practices; (ii) mortgaged,
       pledged or subjected to lien, charge or any other encumbrance any of its
       assets, tangible or intangible other than Permitted Liens (as defined
       below); (iii) sold, assigned or transferred any of its assets or canceled
       any debts or obligations except in the ordinary course of business,
       consistent with past practices; (iv) suffered any extraordinary losses,
       or waived any rights of substantial value; (v) sold, assigned or
       transferred to a third party that is not an affiliate (within the meaning
       set forth in Rule 405 under the Securities Act) any material patents,
       trademarks, copyrights, trade secrets or other intangible assets for
       compensation less than the fair value of such assets; (vi) declared, paid
       or otherwise made any dividend or distribution of any kind on its capital
       stock; (vii) entered into any material transaction other than in the
       ordinary course of business, consistent with past practices; or
       (viii) otherwise had any material change in its condition, financial or
       otherwise, except for changes in the ordinary course of business,
       consistent with past practices, none of which individually or in the
       aggregate has had a material adverse effect on the Company.  For purposes
       of this Section 5(l), "Permitted Liens" shall mean (i) liens for taxes,
       assessments and governmental charges or levies not yet due and payable,
       and (ii) inchoate encumbrances imposed by federal or state laws, statutes
       or regulations, such as 


                                       4


<PAGE>

       materialmen's, mechanics', carriers', workmen's and repairmen's liens 
       which are not, in the aggregate, material.

              (m)    The Common Stock of the Company is currently listed on the
       Nasdaq National Market and shall continue to be listed on either the
       Nasdaq National Market or The Nasdaq SmallCap Market.

              (n)    No representation or warranty by the Company in this
       Agreement, and no statement by an officer of the Company contained in any
       document, certificate or other writing furnished to the undersigned in
       connection with the transactions contemplated hereby, when taken as a
       whole, contains any untrue statement of a material fact or omits to state
       any material fact necessary to make statements herein or therein not
       misleading in light of the circumstances in which they are made.

       6.     REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE UNDERSIGNED.  The
undersigned hereby represents and warrants to and covenants with the Company
that:

              (a)    GENERAL:

                     (i)    The undersigned has all requisite authority to enter
              into this Agreement and the Registration Rights Agreement and to
              perform all the obligations required to be performed by the
              undersigned hereunder and thereunder.  Each of this Agreement and
              the Registration Rights Agreement, when executed and delivered by
              the undersigned, shall, assuming due execution and delivery by the
              Company, constitute a valid and legally binding obligation of the
              undersigned enforceable in accordance with its terms, except as
              the enforceability hereof and thereof may be limited by
              bankruptcy, insolvency, moratorium, reorganization or other
              similar laws affecting the enforcement of creditors' rights
              generally, and except for judicial limitations on the enforcement
              of the remedy of specific performance and other equitable
              remedies.

                     (ii)   The undersigned is a resident of or is domiciled in
              the state or other jurisdiction set forth on the signature page
              hereto and is not acquiring the Shares as an agent or otherwise
              for any other person.

              (b)    INFORMATION CONCERNING THE COMPANY:

                     (i)    The undersigned realizes that purchase of the Shares
              is a speculative investment, and that the economic benefits which
              may be derived therefrom are uncertain.  In determining whether or
              not to make an investment in the Company, the undersigned has
              relied solely upon the written materials provided to the
              undersigned by the Company, receipt of which is hereby


                                       5


<PAGE>


              acknowledged, and upon independent investigations made by the
              undersigned and the undersigned's representatives.

                     (ii)   The opportunity has been made available to the
              undersigned to ask questions of and receive answers from
              representatives of the Company concerning the terms and conditions
              of the Shares and to review the Company's material books and
              records.

                     (iii)  The undersigned understands that no federal or state
              agency has passed upon the Shares or made any finding or
              determination concerning the fairness or advisability of this
              investment.

              (c)    STATUS OF UNDERSIGNED:

                     (i)    The undersigned, if an individual, has attained the
              age of majority (as established in the undersigned's state of
              residence), and, in any event, is under no disability with respect
              to entering into a contractual relationship with the Company and
              in executing this Agreement.

                     (ii)   The undersigned has such knowledge, skill and
              experience in business, financial and investment matters so that
              the undersigned is capable of evaluating the merits and risks of
              an investment in the Shares.  To the extent necessary, the
              undersigned has retained, at the undersigned's own expense, and
              relied upon, appropriate professional advice regarding the
              investment, tax and legal merits and consequences of this
              Agreement and of owning the Shares.

                     (iii)  The undersigned is an "accredited investor" as
              defined in Rule 501(a) under the Securities Act.  The undersigned
              agrees to furnish any additional information requested to assure
              compliance with applicable federal and state securities laws in
              connection with the purchase and sale of the Shares.  The
              undersigned acknowledges that the undersigned has completed
              Part I, the Subscriber Information questionnaire, and Part II, the
              Accreditation Criteria questionnaire, previously provided to the
              undersigned and that the information contained therein is complete
              and accurate as of the date thereof and is hereby affirmed as of
              the date hereof.

                     (iv)   The information presented and statements made by the
              undersigned in the questionnaire referred to in Section 6(c)(iii)
              completed and delivered by the undersigned and returned to the
              Company with this Agreement are complete and accurate as of this
              date and may be relied upon by the Company in determining whether
              to accept this offer.


                                       6


<PAGE>


                     (v)    The undersigned's commitment to investments that are
              not readily marketable is not disproportionate to the
              undersigned's net worth, and an investment in the Shares will not
              cause such commitment to become excessive.  The undersigned has
              adequate means of providing for the undersigned's current needs
              and contingencies and has no need for liquidity with respect to
              the undersigned's investment in the Shares, and can withstand a
              complete loss of such investment in the Shares.

              (d)    RESTRICTIONS ON TRANSFER OR SALE OF SHARES:

                     (i)    The undersigned is acquiring the Shares for the
              undersigned's own account for investment purposes and not with a
              view to or for resale in connection with any distribution thereof.
              The undersigned understands that the Shares have not been
              registered under the Securities Act, or any State Securities Laws,
              in reliance on exemptions from registration which depend, in part,
              on the undersigned's investment intention; and, accordingly, the
              truth and accuracy of the foregoing representation will be relied
              upon by the Company to establish such exemptions.  The undersigned
              acknowledges that the Company is not required to recognize any
              transfer of the Shares unless, in the opinion of counsel to the
              Company, such transfer would not result in a violation of any
              federal or state law regarding the offer and sale of securities
              and unless the other restrictions on transfer set forth in the
              Shares are complied with.

                     (ii)   The undersigned understands that the Shares are
              "restricted securities" under applicable federal securities laws
              and that the Securities Act and the rules of the SEC provide in
              substance that the undersigned may dispose of the Shares only
              pursuant to an effective registration statement under the
              Securities Act or an exemption therefrom, and the undersigned
              understands that the Company has no obligation or intention to
              register any of the Shares (except for the registration rights
              referred to in Section 18 hereof), or to take action so as to
              permit sales pursuant to the Securities Act (including Rule 144
              thereunder).  Accordingly, the undersigned understands that, under
              the SEC's rules and until the Shares are registered for sale under
              the Securities Act, the undersigned may dispose of the Shares
              principally only in "private placements" which are exempt from
              registration under the Securities Act, in which event the
              transferee will acquire "restricted securities" subject to the
              same limitations as in the hands of the undersigned.  As a
              consequence, the undersigned understands that the undersigned must
              bear the economic risks of the investment in the Shares for an
              indefinite period of time.

                     (iii)  The undersigned agrees:  (A) that the undersigned
              will not sell, assign, pledge, give, transfer or otherwise dispose
              of the Shares or any interest 


                                       7


<PAGE>

              therein, or make any offer or attempt to do any of the foregoing, 
              except pursuant to a registration of the Shares, as applicable, 
              under the Securities Act and all applicable State Securities Laws
              or in a transaction which is exempt from the registration 
              provisions of the Securities Act and all applicable State 
              Securities Laws; (B) that the certificate(s) for the Shares will 
              bear a legend making reference to the foregoing restrictions; 
              and (C) that the Company and any transfer agent for the Shares 
              shall not be required to give effect to any purported transfer of
              such Shares except upon compliance with the foregoing 
              restrictions.

                     (iv)   The undersigned has not offered or sold any portion
              of the undersigned's Shares.

                     (v)    The undersigned acknowledges that the Company has
              the right in its sole and absolute discretion to abandon this
              private placement at any time prior to the completion of the
              offering and to return the previously paid subscription price of
              the Shares, without interest thereon, to the undersigned.

                     (vi)   The undersigned has not used any person as a
              "Purchaser Representative" within the meaning of SEC Regulation D
              to represent it in determining whether it should purchase the
              Shares.

       7.     CONDITIONS TO CLOSING.

              (a)    CONDITIONS TO OBLIGATIONS OF THE UNDERSIGNED.  The
       undersigned's obligation to purchase the Shares at the Closing is subject
       to the fulfillment, at or prior to the Closing, of all of the following
       conditions, any of which may be waived by the undersigned:

                     
                     (i)    The representations and warranties made by the 
              Company in Section 5 hereof shall be true and correct in all 
              respects on the date of the Closing with the same force and 
              effect as if they had been made on and as of said date; and
              the Company shall have performed and complied with all 
              obligations, agreements and conditions herein required to be 
              performed by it on or prior to the Closing.

                     (ii)   The undersigned shall have received from Faegre &
              Benson LLP, counsel to the Company, an opinion letter
              substantially in the form attached hereto as Appendix A, addressed
              to it, dated the date of the Closing.

                     (iii)  All corporate and other proceedings in connection
              with the transactions contemplated at the Closing hereby and all
              documents and instruments incident to such transactions shall be
              reasonably satisfactory in 


                                       8
<PAGE>


              substance and form to the undersigned, and the undersigned shall 
              have received all such counterpart originals or certified or 
              other copies of such documents as it may reasonably request.

                     (iv)   All authorizations, approvals, or permits, if any,
              of any governmental authority or regulatory body of the United
              States or of any state that are required in connection with the
              lawful sale and issuance of the Shares pursuant to this Agreement
              shall have been duly obtained and shall be effective on and as of
              the Closing, except for notices required or permitted to be filed
              with certain state and federal securities commissions after the
              Closing, which notices will be filed on a timely basis and except
              for filings and other actions required to be taken pursuant to the
              Registration Rights Agreement after the date hereof. At the time
              of the Closing, the sale and issuance of the Shares shall be
              legally permitted by all laws and regulations to which the
              undersigned and the Company are subject.

                     (v)    No stop order or other order enjoining the sale of
              the Shares shall have been issued and no proceedings for such
              purpose shall be pending or, to the knowledge of the Company,
              threatened by the SEC or any commissioner of corporations or
              similar officer of any other state having jurisdiction over this
              transaction.

                     (vi)   The Company shall have delivered to the undersigned
              a Certificate, executed by the President of the Company, dated the
              Closing Date, certifying to (i) the fulfillment of the conditions
              specified in subparagraphs (i) and (v) of this Section 8 and (ii)
              the incumbency of the officers of the Company executing this
              Agreement and the other instruments delivered by the Company upon
              the Closing.

              (b)    CONDITIONS TO OBLIGATIONS OF THE COMPANY.  In addition to,
       and not in limitation of, the Company's rights set forth in Section 2
       hereof, the Company's obligation to issue and sell the Shares at the
       Closing is subject to the fulfillment, on or prior to the Closing, of the
       following conditions, any of which may be waived by the Company:

                     (i)    The representations and warranties made by the
              undersigned in Section 6 hereof shall be true and correct in all
              respects on the date of the Closing with the same force and effect
              as if they had been made on and as of said date, and the
              undersigned shall have performed and complied with all
              obligations, agreements and conditions herein required to be
              performed by the undersigned on or before the Closing.


                                       9
<PAGE>


                     (ii)   All authorizations, approvals, or permits, if any,
              of any governmental authority or regulatory body of the United
              States or of any state that are required in connection with the
              lawful sale and issuance of the Shares pursuant to this Agreement
              shall have been duly obtained and shall be effective on and as of
              the Closing.  No stop order or other order enjoining the sale of
              the Shares shall have been issued and no proceedings for such
              purpose shall be pending or, to the knowledge of the Company,
              threatened by the SEC or any commissioner of corporations or
              similar officer of any state having jurisdiction over this
              transaction.  At the time of the Closing, the sale and issuance of
              the Shares shall be legally permitted by all laws and regulations
              to which the undersigned and the Company are subject.

       8.     LEGEND.  Each certificate for Shares will be imprinted with a
legend in substantially the following form:

       "THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED
       UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
       ANY STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED OR OFFERED
       FOR SALE OR TRANSFER UNLESS A REGISTRATION STATEMENT UNDER THE SECURITIES
       ACT AND OTHER APPLICABLE SECURITIES LAWS WITH RESPECT TO SUCH SECURITIES
       IS THEN IN EFFECT, OR, IN THE OPINION OF COUNSEL, SUCH REGISTRATION UNDER
       THE SECURITIES ACT AND OTHER APPLICABLE SECURITIES LAWS IS NOT REQUIRED."

       9.     BROKERS.  The undersigned has not entered into any agreement to
pay any broker's or finder's fee to any person with respect to this Agreement or
the transactions contemplated hereby.

       10.    FILING OF REPORTS.  The Company will, so long as it has securities
registered pursuant to Section 12 of the 1934 Act or has securities registered
pursuant to the Securities Act, make timely filing of such reports as are
required to be filed by it with the SEC so that Rule 144 under the Securities
Act or any successor provision thereto will be available to the security holders
of the Company who are otherwise able to take advantage of the provisions of
such Rule.

       11.    WAIVER, AMENDMENT.  Neither this Agreement nor any provisions
hereof shall be modified, changed, discharged or terminated except by an
instrument in writing, signed by the party against whom any waiver, change,
discharge or termination is sought, and any waiver, change, discharge or
termination shall be effective only to the extent specifically set forth in 
such writing.


                                       10
<PAGE>


       12.    ASSIGNABILITY.  Neither this Agreement nor any right, remedy,
obligation or liability arising hereunder or by reason hereof shall be
assignable by either the Company or the undersigned without the prior written
consent of the other party.

       13.    APPLICABLE LAW.  This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware.

       14.    SECTION AND OTHER HEADINGS.  The section and other headings
contained in this Agreement are for reference purposes only and shall not affect
the meaning or interpretation of this Agreement.

       15.    COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which together shall be deemed to be one and the same
agreement.

       16.    NOTICES.  All notices and other communications provided for herein
shall be in writing and shall be deemed to have been duly given if delivered
personally or sent by registered or certified mail, return receipt requested,
postage prepaid:

              (a)    If to the Company, to it at the following address:

                                GalaGen Inc.
                                1275 Red Fox Road
                                Arden Hills, Minnesota 55112-6943
                                Attn:  Chief Executive Officer

              (b)    If to the undersigned, the address set forth on the
       signature page hereto;

or at such other address as either party shall have specified by notice in
writing to the other.

       17.    BINDING EFFECT.  The provisions of this Agreement shall be binding
upon and accrue to the benefit of the parties hereto and their respective heirs,
legal representatives, successors and assigns.

       18.    REGISTRATION RIGHTS.  The Company and the undersigned agree that
the undersigned shall have the benefit of the registration rights as set forth
in the Registration Rights Agreement of even date herewith, in the form attached
as Appendix B hereto (the "Registration Rights Agreement"), with respect to the
Shares.

       19.    SURVIVAL.  All representations, warranties and covenants contained
in this Agreement shall survive (i) the acceptance of the subscription by the
Company and (ii) if the undersigned is an individual, the death or disability of
the undersigned.


                                       11
<PAGE>


       20.    NOTIFICATION OF CHANGES.  The undersigned hereby covenants and
agrees to notify the Company upon the occurrence of any event prior to the
Closing of the purchase of the Shares pursuant to this Agreement which would
cause any representation, warranty, or covenant of the undersigned contained in
this Agreement to be false or incorrect.

       21.    ENTIRE AGREEMENT.  This Agreement, the Appendices hereto, and the
other documents delivered pursuant hereto constitute the full and entire
understanding and agreement among the parties with regard to the subjects hereof
and no party shall be liable or bound to any other party in any manner by any
representations, warranties, covenants, or agreements except as specifically set
forth herein or therein.  Nothing in this Agreement, express or implied, is
intended to confer upon any party, other than the parties hereto and their
respective successors and assigns, any rights, remedies, obligations, or
liabilities under or by reason of this Agreement, except as expressly provided
herein.

       22.    SEPARABILITY.  In case any provision of this Agreement shall be
invalid, illegal, or unenforceable, it shall to the extent practicable be
modified so as to make it valid, legal and enforceable and to retain as nearly
as practicable the intent of the parties, and the validity, legality, and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

       23.    DELAYS OR OMISSIONS.  No delay or omission to exercise any right,
power, or remedy accruing to either party or its respective successors and
assigns upon any breach, default or noncompliance of the other party hereto
under this Agreement shall impair any such right, power, or remedy, nor shall it
be construed to be a waiver of any such breach, default or noncompliance, or any
acquiescence therein, or of any similar breach, default or noncompliance
thereafter occurring.  It is further agreed that all remedies, either under this
Agreement, by law, or otherwise afforded to either party shall be cumulative and
not alternative.

       24.    PREVAILING PARTY.  If legal action is brought by, or on behalf of,
either party to enforce or interpret this Agreement, the prevailing party shall
be entitled to recover its attorneys' fees and legal costs in connection
therewith.


                                       12
<PAGE>


       IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement and Investment Letter this ____ day of ________________, 1999.



                                   . . . . . . . . . . . . . . . . . . . . . . 
                                    Signature

                                   . . . . . . . . . . . . . . . . . . . . . . 
                                    Print Name

                                   . . . . . . . . . . . . . . . . . . . . . . 
                                    Number and Street

                                   . . . . . . . . . . . . . . . . . . . . . . 
                                    City, State and Zip

                                   . . . . . . . . . . . . . . . . . . . . . . 
                                    Subscriber's Social Security
                                    or Tax Identification Number


                                   . . . . . . . . . . . . . . . . . . . . . . 
                                    Signature of Co-owner if applicable


If Joint Ownership, check one (all parties must sign above):

( )  Joint Tenants with            ( )    Tenants in Common
     Right of Survivorship

( )  Community Property

If Fiduciary, Corporation or Partnership, check one:

( )  Trust            ( ) Estate          ( )    Power of Attorney

( )  Corporation      ( ) Partnership


                                       13

<PAGE>

Accepted as of __________,1999


GALAGEN INC.


By: ______________________________________
   Name: _________________________________
   Title: ________________________________


                                       14


<PAGE>

                                                                    EXHIBIT 4.7
                                                                    [Severance]

                             SUBSCRIPTION AGREEMENT AND
                                 INVESTMENT LETTER


GalaGen Inc.
1275 Red Fox Road
MS - 7420
Arden Hills, Minnesota 55112-6943


Gentlemen:

       The undersigned hereby subscribes for and offers to purchase from GalaGen
Inc., a Delaware corporation (the "Company"), 50,000 shares of Common Stock of
the Company, par value $.01 per share (the "Shares").  The undersigned further
understands that the offering is being made without registration of the Shares
under the Securities Act of 1933, as amended (the "Securities Act"), and is
being made only to "accredited investors" (as defined in Rule 501 of Regulation
D under the Securities Act).

       1.     PURCHASE PRICE.  Subject to the terms and conditions hereof, the
undersigned hereby irrevocably subscribes for the Shares for an aggregate
purchase price of $75,000, which amount is payable as described in Section 4
hereof.

       2.     ACCEPTANCE OF SUBSCRIPTION AND ISSUANCE OF SHARES.  It is
understood and agreed that the Company shall have the sole right, at its
complete discretion, to accept or reject this subscription, in whole or in part,
for any reason and that the same shall be deemed to be accepted by the Company
only when it is signed by a duly authorized officer of the Company and delivered
to the undersigned at the Closing referred to in Section 3 hereof. 
Notwithstanding anything in this Agreement to the contrary, the Company shall
have no obligation to issue any of the Shares to any person who is a resident of
a jurisdiction in which the issuance of Shares to such person would constitute a
violation of the securities, "blue sky" or other similar laws of such
jurisdiction (collectively referred to as the "State Securities Laws").

       3.     THE CLOSING.  The closing of the purchase and sale of the Shares
(the "Closing") shall take place on April 20, 1999 (the "Closing Date") and at a
place and at a time mutually agreed to by the Company and the undersigned.

       4.     PAYMENT FOR SHARES.  Payment for the Shares shall be received by
the Company from the undersigned by cashier's check or wire transfer of
immediately available funds at or prior to the Closing.  The Company shall
deliver the Shares to the undersigned at the Closing.


<PAGE>


       5.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company hereby
represents and warrants to the undersigned that:

              (a)    The Company is duly incorporated, validly existing and in
       good standing under the laws of the State of Delaware, with full power
       and authority to conduct its business as it is currently being conducted
       and to own its assets.  The Company is duly qualified as a foreign
       corporation to do business in each jurisdiction in which the ownership of
       its property or the conduct of its business requires such qualification,
       except where the failure to so qualify would not materially or adversely
       affect the Company, its business, assets, condition (financial or
       otherwise) or operations.

              (b)    The Company has all requisite authority to enter into this
       Agreement and the Registration Rights Agreement (as defined in
       Section 17) and to perform all the obligations required to be performed
       by the Company hereunder and thereunder.  All corporate action on the
       part of the Company, its officers, directors and stockholders necessary
       for the authorization, execution and delivery of this Agreement and the
       Registration Rights Agreement, the performance of all the Company's
       obligations hereunder and thereunder, and for the authorization,
       issuance, sale and delivery of the Shares has been taken or will be taken
       prior to the Closing.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the Company, shall, assuming
       due execution and delivery by the undersigned, constitute a valid and
       legally binding obligation of the Company enforceable in accordance with
       its terms, except as the enforceability hereof and thereof may be limited
       by bankruptcy, insolvency, moratorium, reorganization or other similar
       laws affecting the enforcement of creditors' rights generally, and except
       for judicial limitations on the enforcement of the remedy of specific
       performance and other equitable remedies.

              (c)    The Shares, when issued and paid for, will represent duly
       authorized, validly issued and fully paid and nonassessable shares of
       Common Stock of the Company, free of any liens, claims or encumbrances
       except for restrictions on transfer imposed by state and federal
       securities laws and except for the liens, claims and encumbrances created
       by the undersigned, and the issuance of the Shares is not subject to any
       preemptive right or right of first refusal that has not been waived.

              (d)    Assuming the accuracy of the representations and warranties
       of the undersigned contained in Section 6 hereof on the date hereof and
       on the Closing Date, the offer, issue, and sale of the Shares are exempt
       from the registration and prospectus delivery requirements of the
       Securities Act and have been registered or qualified (or are exempt from
       registration and qualification) under the registration, permit, or
       qualification requirements of all applicable State Securities Laws.

              (e)    The Company has furnished to the undersigned the Company's
       annual report on Form 10-K for the fiscal year ended December 31, 1998
       (the "SEC 


                                       2

<PAGE>


       Document").  The Company warrants that, as of its date (or if amended, 
       as of the date of such amendment), the SEC Document complied as to form 
       in all material respects with the requirements of the Securities 
       Exchange Act of 1934 (the "1934 Act"), and the information contained in
       such document, as of its date, did not contain any untrue statement of a
       material fact, and did not omit to state any material fact necessary to
       make any statement, in light of the circumstances under which such
       statement was made, not misleading.  The Company has not filed with the
       Securities and Exchange Commission (the "SEC") any reports under the 1934
       Act since the date of the SEC Document.

              (f)    The Company has, within the past twelve months, timely
       filed with the SEC all reports and other documents required to be so
       filed.

              (g)    The Company is authorized to issue 40,000,000 shares of
       Common Stock and 15,000,000 shares of Preferred Stock.  As of March 31,
       1999, there were 8,983,996 shares of Common Stock and no shares of
       Preferred Stock outstanding.  No shares of capital stock of the Company,
       or securities convertible into or exercisable for such capital stock,
       have been issued by the Company since March 31, 1999 except for issuances
       pursuant to the Company's equity compensation plans or pursuant to
       outstanding options, warrants, rights or convertible notes, in each case
       as disclosed in the SEC Document.  All outstanding shares of Common Stock
       have been duly authorized and validly issued and are fully paid and 
       non-assessable; and none of the outstanding shares of Common Stock were
       issued in violation of the preemptive rights, if any, of any stockholders
       of the Company.

              (h)    There is no action, suit or proceeding pending, or, to the
       Company's knowledge, threatened, against the Company (a) which questions
       the validity of this Agreement or the ability of the Company to
       consummate the transactions contemplated hereby or (b) which, singly or
       in the aggregate, if the subject of an unfavorable decision, ruling or
       finding, would materially adversely affect the business, properties,
       prospects, operations, or financial condition of the Company.

              (i)    To the Company's knowledge, there are no outstanding
       stockholder agreements, voting trusts, proxies or other arrangements or
       understandings among the stockholders of the Company relating to the
       voting of their respective shares other than proxies which have been or
       may be given in connection with the Company's annual meeting of
       stockholders and other than as disclosed in documents filed with the SEC
       pursuant to the Securities Exchange Act of 1934, as amended.

              (j)    The execution, delivery and performance of this Agreement
       and the Registration Rights Agreement and consummation of the
       transactions contemplated hereby and thereby will not (a) violate or
       conflict with any provisions of the Restated Certificate of
       Incorporation, as amended, or Bylaws of the Company; (b) result in any
       breach, violation of or default or loss of a benefit under, or conflict
       with, or permit the acceleration of any obligation under (in each case,
       upon the giving of notice, the 


                                       3


<PAGE>


       passage of time, or both) any mortgage, indenture, lease, loan agreement 
       or other agreement or instrument, permit, franchise, license, judgment, 
       order, decree, law, ordinance, rule or regulation applicable to the 
       Company or its properties.

              (k)    All consents, approvals, orders, or authorizations of, or
       registrations, qualifications, designations, declarations, or filings
       with, any federal, state or local governmental authority, required on the
       part of the Company in connection with the valid execution, delivery and
       performance of this Agreement and the Registration Rights Agreement, the
       offer, sale or issuance of the Shares, or the consummation of any other
       transaction contemplated hereby and thereby, have been obtained, or will
       be effective at the Closing, except for notices required or permitted to
       be filed with certain state and federal securities commissions after the
       Closing, which notices will be filed on a timely basis and except for
       filings and such other actions required to be taken pursuant to the
       Registration Rights Agreement after the date hereof.

              (l)    Except as disclosed in or contemplated by the SEC Document
       and except for the repurchase from Chiron Corporation on April 1, 1999 of
       three warrants to purchase shares of Common Stock of the Company, the
       Company has not otherwise had any material change in its condition,
       financial or otherwise, except for changes in the ordinary course of
       business, consistent with past practices, none of which individually or
       in the aggregate has had a material adverse effect on the Company.  

              (m)    The Common Stock of the Company is currently listed on the
       Nasdaq National Market and shall continue to be listed on either the
       Nasdaq National Market or The Nasdaq SmallCap Market.

              (n)    No representation or warranty by the Company in this
       Agreement, and no statement by an officer of the Company contained in any
       document, certificate or other writing furnished to the undersigned in
       connection with the transactions contemplated hereby, when taken as a
       whole, contains any untrue statement of a material fact or omits to state
       any material fact necessary to make statements herein or therein not
       misleading in light of the circumstances in which they are made.

       6.     REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE UNDERSIGNED.  The
undersigned hereby represents and warrants to and covenants with the Company
that:

              (a)    GENERAL:

                     (i)    The undersigned has all requisite authority to enter
       into this Agreement and the Registration Rights Agreement and to perform
       all the obligations required to be performed by the undersigned hereunder
       and thereunder.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the undersigned, shall,
       assuming due execution and delivery by the Company, constitute a valid
       and legally binding obligation of the undersigned enforceable in
       accordance with its terms, except 


                                       4


<PAGE>


       as the enforceability hereof and thereof may be limited by bankruptcy, 
       insolvency, moratorium, reorganization or other similar laws affecting 
       the enforcement of creditors' rights generally, and except for judicial 
       limitations on the enforcement of the remedy of specific performance and
       other equitable remedies.

                     (ii)   The undersigned is a resident of or is domiciled in
       the state or other jurisdiction set forth on the signature page hereto
       and is not acquiring the Shares as an agent or otherwise for any other
       person.

              (b)    INFORMATION CONCERNING THE COMPANY:

                     (i)    The undersigned realizes that purchase of the Shares
       is a speculative investment, and that the economic benefits which may be
       derived therefrom are uncertain.  In determining whether or not to make
       an investment in the Company, the undersigned has relied solely upon the
       written materials provided to the undersigned by the Company, receipt of
       which is hereby acknowledged, and upon independent investigations made by
       the undersigned and the undersigned's representatives.

                     (ii)   The opportunity has been made available to the
       undersigned to ask questions of and receive answers from representatives
       of the Company concerning the terms and conditions of the Shares and to
       review the Company's material books and records.

                     (iii)  The undersigned understands that no federal or state
       agency has passed upon the Shares or made any finding or determination
       concerning the fairness or advisability of this investment.

              (c)    STATUS OF UNDERSIGNED:

                     (i)    The undersigned, if an individual, has attained the
       age of majority (as established in the undersigned's state of residence),
       and, in any event, is under no disability with respect to entering into a
       contractual relationship with the Company and in executing this
       Agreement.

                     (ii)   The undersigned has such knowledge, skill and
       experience in business, financial and investment matters so that the
       undersigned is capable of evaluating the merits and risks of an
       investment in the Shares.  To the extent necessary, the undersigned has
       retained, at the undersigned's own expense, and relied upon, appropriate
       professional advice regarding the investment, tax and legal merits and
       consequences of this Agreement and of owning the Shares.

                     (iii)  The undersigned is an "accredited investor" as
       defined in Rule 501(a) under the Securities Act.  The undersigned agrees
       to furnish any 


                                       5

<PAGE>


       additional information requested to assure compliance with applicable 
       federal and state securities laws in connection with the purchase and 
       sale of the Shares.  The undersigned acknowledges that the undersigned 
       has completed Part I, the Subscriber Information questionnaire, and 
       Part II, the Accreditation Criteria questionnaire, previously provided 
       to the undersigned and that the information contained therein is 
       complete and accurate as of the date thereof and is hereby affirmed as 
       of the date hereof.

                     (iv)   The information presented and statements made by the
       undersigned in the questionnaire referred to in Section 6(c)(iii)
       completed and delivered by the undersigned and returned to the Company
       with this Agreement, and any additional information supplied by the
       undersigned at the Company's request relating to the undersigned's
       income, net worth, investment experience or other matters, are complete
       and accurate as of this date and may be relied upon by the Company in
       determining whether to accept this offer.

                     (v)    The undersigned's commitment to investments that are
       not readily marketable is not disproportionate to the undersigned's net
       worth, and an investment in the Shares will not cause such commitment to
       become excessive.  The undersigned has adequate means of providing for
       the undersigned's current needs and contingencies and has no need for
       liquidity with respect to the undersigned's investment in the Shares, and
       can withstand a complete loss of such investment in the Shares.

              (d)    RESTRICTIONS ON TRANSFER OR SALE OF SHARES:

                     (i)    The undersigned is acquiring the Shares for the
       undersigned's own account for investment purposes and not with a view to
       or for resale in connection with any distribution thereof.  The
       undersigned understands that the Shares have not been registered under
       the Securities Act, or any State Securities Laws, in reliance on
       exemptions from registration which depend, in part, on the undersigned's
       investment intention; and, accordingly, the truth and accuracy of the
       foregoing representation will be relied upon by the Company to establish
       such exemptions.  The undersigned acknowledges that the Company is not
       required to recognize any transfer of the Shares unless, in the opinion
       of counsel to the Company, such transfer would not result in a violation
       of any federal or state law regarding the offer and sale of securities
       and unless the other restrictions on transfer set forth in the Shares are
       complied with.

                     (ii)   The undersigned understands that the Shares are
       "restricted securities" under applicable federal securities laws and that
       the Securities Act and the rules of the SEC provide in substance that the
       undersigned may dispose of the Shares only pursuant to an effective


                                       6


<PAGE>


       registration statement under the Securities Act or an exemption
       therefrom, and the undersigned understands that the Company has no
       obligation or intention to register any of the Shares (except for the
       registration rights referred to in Section 18 hereof), or to take action
       so as to permit sales pursuant to the Securities Act (including Rule 144
       thereunder).  Accordingly, the undersigned understands that, under the
       SEC's rules and until the Shares are registered for sale under the
       Securities Act, the undersigned may dispose of the Shares principally
       only in "private placements" which are exempt from registration under the
       Securities Act, in which event the transferee will acquire "restricted
       securities" subject to the same limitations as in the hands of the
       undersigned.  As a consequence, the undersigned understands that the
       undersigned must bear the economic risks of the investment in the Shares
       for an indefinite period of time.

                     (iii)  The undersigned agrees:  (A) that the undersigned
       will not sell, assign, pledge, give, transfer or otherwise dispose of the
       Shares or any interest therein, or make any offer or attempt to do any of
       the foregoing, except pursuant to a registration of the Shares, as
       applicable, under the Securities Act and all applicable State Securities
       Laws or in a transaction which is exempt from the registration provisions
       of the Securities Act and all applicable State Securities Laws; (B) that
       the certificate(s) for the Shares will bear a legend making reference to
       the foregoing restrictions; and (C) that the Company and any transfer
       agent for the Shares shall not be required to give effect to any
       purported transfer of such Shares except upon compliance with the
       foregoing restrictions.

                     (iv)   The undersigned has not offered or sold any portion
       of the undersigned's Shares.

                     (v)    The undersigned acknowledges that the Company has
       the right in its sole and absolute discretion to abandon this private
       placement at any time prior to the completion of the offering and to
       return the previously paid subscription price of the Shares, without
       interest thereon, to the undersigned.

                     (vi)   The undersigned has not used any person as a
       "Purchaser Representative" within the meaning of SEC Regulation D to
       represent it in determining whether it should purchase the Shares.

       7.     CONDITIONS TO CLOSING.

              (a)    CONDITIONS TO OBLIGATIONS OF THE UNDERSIGNED.  The
       undersigned's obligation to purchase the Shares at the Closing is subject
       to the fulfillment, at or prior to the Closing, of all of the following
       conditions, any of which may be waived by the undersigned:


                                       7


<PAGE>


                     (i)    The representations and warranties made by the
       Company in Section 5 hereof shall be true and correct in all respects on
       the date of the Closing with the same force and effect as if they had
       been made on and as of said date; and the Company shall have performed
       and complied with all obligations, agreements and conditions herein
       required to be performed by it on or prior to the Closing.

                     (ii)   All corporate and other proceedings in connection
       with the transactions contemplated at the Closing hereby and all
       documents and instruments incident to such transactions shall be
       reasonably satisfactory in substance and form to the undersigned, and the
       undersigned shall have received all such counterpart originals or
       certified or other copies of such documents as it may reasonably request.

                     (iii)  All authorizations, approvals, or permits, if any,
       of any governmental authority or regulatory body of the United States or
       of any state that are required in connection with the lawful sale and
       issuance of the Shares pursuant to this Agreement shall have been duly
       obtained and shall be effective on and as of the Closing, except for
       notices required or permitted to be filed with certain state and federal
       securities commissions after the Closing, which notices will be filed on
       a timely basis, and except for filings and other actions required to be
       taken pursuant to the Registration Rights Agreement after the date
       hereof. At the time of the Closing, the sale and issuance of the Shares
       shall be legally permitted by all laws and regulations to which the
       undersigned and the Company are subject.

                     (iv)   No stop order or other order enjoining the sale of
       the Shares shall have been issued and no proceedings for such purpose
       shall be pending or, to the knowledge of the Company, threatened by the
       SEC or any commissioner of corporations or similar officer of any other
       state having jurisdiction over this transaction.

                     (v)    The Company shall have delivered to the undersigned
       a Certificate, executed by the President of the Company, dated the
       Closing Date, certifying to (i) the fulfillment of the conditions
       specified in subparagraphs (i) and (iv) of this Section 8 and (ii) the
       incumbency of the officers of the Company executing this Agreement and
       the other instruments delivered by the Company upon the Closing.

       (b)    CONDITIONS TO OBLIGATIONS OF THE COMPANY.  In addition to,
and not in limitation of, the Company's rights set forth in Section 2
hereof, the Company's obligation to issue and sell the Shares at the
Closing is subject to the fulfillment, on or prior to the Closing, of the
following conditions, any of which may be waived by the Company:


                                       8


<PAGE>


                     (i)    The representations and warranties made by the
       undersigned in Section 6 hereof shall be true and correct in all respects
       on the date of the Closing with the same force and effect as if they had
       been made on and as of said date, and the undersigned shall have
       performed and complied with all obligations, agreements and conditions
       herein required to be performed by the undersigned on or before the
       Closing.

                     (ii)   All authorizations, approvals, or permits, if any,
       of any governmental authority or regulatory body of the United States or
       of any state that are required in connection with the lawful sale and
       issuance of the Shares pursuant to this Agreement shall have been duly
       obtained and shall be effective on and as of the Closing.  No stop order
       or other order enjoining the sale of the Shares shall have been issued
       and no proceedings for such purpose shall be pending or, to the knowledge
       of the Company, threatened by the SEC or any commissioner of corporations
       or similar officer of any state having jurisdiction over this
       transaction.  At the time of the Closing, the sale and issuance of the
       Shares shall be legally permitted by all laws and regulations to which
       the undersigned and the Company are subject.

       8.     LEGEND.  Each certificate for Shares will be imprinted with a
legend in substantially the following form:

       "THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED
       UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
       ANY STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED OR OFFERED
       FOR SALE OR TRANSFER UNLESS A REGISTRATION STATEMENT UNDER THE SECURITIES
       ACT AND OTHER APPLICABLE SECURITIES LAWS WITH RESPECT TO SUCH SECURITIES
       IS THEN IN EFFECT, OR, IN THE OPINION OF COUNSEL, SUCH REGISTRATION UNDER
       THE SECURITIES ACT AND OTHER APPLICABLE SECURITIES LAWS IS NOT REQUIRED."

       9.     BROKERS.  The undersigned has not entered into any agreement to
pay any broker's or finder's fee to any person with respect to this Agreement or
the transactions contemplated hereby.

       10.    FILING OF REPORTS.  The Company will, so long as it has securities
registered pursuant to Section 12 of the 1934 Act or has securities registered
pursuant to the Securities Act, make timely filing of such reports as are
required to be filed by it with the SEC so that Rule 144 under the Securities
Act or any successor provision thereto will be available to the security holders
of the Company who are otherwise able to take advantage of the provisions of
such Rule.

       11.    WAIVER, AMENDMENT.  Neither this Agreement nor any provisions
hereof shall be modified, changed, discharged or terminated except by an
instrument in writing, signed by the party against whom any waiver, change,
discharge or termination is sought, and any 


                                       9


<PAGE>


waiver, change, discharge or termination shall be effective only to the 
extent specifically set forth in such writing.

       12.    ASSIGNABILITY.  Neither this Agreement nor any right, remedy,
obligation or liability arising hereunder or by reason hereof shall be
assignable by either the Company or the undersigned without the prior written
consent of the other party.

       13.    APPLICABLE LAW.  This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware.

       14.    SECTION AND OTHER HEADINGS.  The section and other headings
contained in this Agreement are for reference purposes only and shall not affect
the meaning or interpretation of this Agreement.

       15.    COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which together shall be deemed to be one and the same
agreement.

       16.    NOTICES.  All notices and other communications provided for herein
shall be in writing and shall be deemed to have been duly given if delivered
personally or sent by registered or certified mail, return receipt requested,
postage prepaid:

              (a)    If to the Company, to it at the following address:

                          GalaGen Inc.
                          1275 Red Fox Road
                          Arden Hills, Minnesota 55112-6943
                          Attn:  Chief Executive Officer

              (b)    If to the undersigned, the address set forth on the
       signature page hereto;

or at such other address as either party shall have specified by notice in
writing to the other.

       17.    BINDING EFFECT.  The provisions of this Agreement shall be binding
upon and accrue to the benefit of the parties hereto and their respective heirs,
legal representatives, successors and assigns.

       18.    REGISTRATION RIGHTS.  The Company and the undersigned agree that
the undersigned shall have the benefit of the registration rights as set forth
in the Registration Rights Agreement of even date herewith, in the form attached
as Appendix A hereto (the "Registration Rights Agreement"), with respect to the
Shares.

       19.    SURVIVAL.  All representations, warranties and covenants contained
in this Agreement shall survive (i) the acceptance of the subscription by the
Company and (ii) if the undersigned is an individual, the death or disability of
the undersigned.


                                       10


<PAGE>


       20.    NOTIFICATION OF CHANGES.  The undersigned hereby covenants and
agrees to notify the Company upon the occurrence of any event prior to the
Closing of the purchase of the Shares pursuant to this Agreement which would
cause any representation, warranty, or covenant of the undersigned contained in
this Agreement to be false or incorrect.

       21.    ENTIRE AGREEMENT.  This Agreement, the Appendices hereto, and the
other documents delivered pursuant hereto constitute the full and entire
understanding and agreement among the parties with regard to the subjects hereof
and no party shall be liable or bound to any other party in any manner by any
representations, warranties, covenants, or agreements except as specifically set
forth herein or therein.  Nothing in this Agreement, express or implied, is
intended to confer upon any party, other than the parties hereto and their
respective successors and assigns, any rights, remedies, obligations, or
liabilities under or by reason of this Agreement, except as expressly provided
herein.

       22.    SEPARABILITY.  In case any provision of this Agreement shall be
invalid, illegal, or unenforceable, it shall to the extent practicable be
modified so as to make it valid, legal and enforceable and to retain as nearly
as practicable the intent of the parties, and the validity, legality, and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

       23.    DELAYS OR OMISSIONS.  No delay or omission to exercise any right,
power, or remedy accruing to either party or its respective successors and
assigns upon any breach, default or noncompliance of the other party hereto
under this Agreement shall impair any such right, power, or remedy, nor shall it
be construed to be a waiver of any such breach, default or noncompliance, or any
acquiescence therein, or of any similar breach, default or noncompliance
thereafter occurring.  It is further agreed that all remedies, either under this
Agreement, by law, or otherwise afforded to either party shall be cumulative and
not alternative.

       24.    PREVAILING PARTY.  If legal action is brought by, or on behalf of,
either party to enforce or interpret this Agreement, the prevailing party shall
be entitled to recover its attorneys' fees and legal costs in connection
therewith.


                                       11


<PAGE>


       IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement and Investment Letter this ____ day of ________________, 1999.


                                       ---------------------------------------
                                       Signature

                                       ---------------------------------------
                                       Print Name

                                       ---------------------------------------
                                       Number and Street

                                       ---------------------------------------
                                       City, State and Zip

                                       ---------------------------------------
                                       Subscriber's Social Security
                                       or Tax Identification Number


                                       ---------------------------------------
                                       Signature of Co-owner if applicable


If Joint Ownership, check one (all parties must sign above):

( )    Joint Tenants with          ( )    Tenants in Common
       Right of Survivorship

( )    Community Property

If Fiduciary, Corporation or Partnership, check one:

( )    Trust         ( ) Estate           ( )    Power of Attorney

( )    Corporation   ( ) Partnership



                                       12


<PAGE>


Accepted as of __________,1999


GALAGEN INC.


By: _____________________________________
   Name: ________________________________
   Title: _______________________________












                                       13


   
    


<PAGE>

                                                                    EXHIBIT 4.8
                                                               [Profit Sharing]

                             SUBSCRIPTION AGREEMENT AND
                                 INVESTMENT LETTER
                                 -----------------

GalaGen Inc.
1275 Red Fox Road
MS - 7420
Arden Hills, Minnesota 55112-6943


Gentlemen:

       The undersigned hereby subscribes for and offers to purchase from 
GalaGen Inc., a Delaware corporation (the "Company"), 35,000 shares of Common 
Stock of the Company, par value $.01 per share (the "Shares").  The 
undersigned further understands that the offering is being made without 
registration of the Shares under the Securities Act of 1933, as amended (the 
"Securities Act"), and is being made only to "accredited investors" (as 
defined in Rule 501 of Regulation D under the Securities Act).

       1.     PURCHASE PRICE.  Subject to the terms and conditions hereof, the
undersigned hereby irrevocably subscribes for the Shares for an aggregate
purchase price of $52,500, which amount is payable as described in Section 4
hereof.

       2.     ACCEPTANCE OF SUBSCRIPTION AND ISSUANCE OF SHARES.  It is 
understood and agreed that the Company shall have the sole right, at its 
complete discretion, to accept or reject this subscription, in whole or in 
part, for any reason and that the same shall be deemed to be accepted by the 
Company only when it is signed by a duly authorized officer of the Company 
and delivered to the undersigned at the Closing referred to in Section 3 
hereof. Notwithstanding anything in this Agreement to the contrary, the 
Company shall have no obligation to issue any of the Shares to any person who 
is a resident of a jurisdiction in which the issuance of Shares to such 
person would constitute a violation of the securities, "blue sky" or other 
similar laws of such jurisdiction (collectively referred to as the "State 
Securities Laws").

       3.     THE CLOSING.  The closing of the purchase and sale of the 
Shares (the "Closing") shall take place on April 20, 1999 (the "Closing 
Date") and at a place and at a time mutually agreed to by the Company and the 
undersigned.

       4.     PAYMENT FOR SHARES.  Payment for the Shares shall be received 
by the Company from the undersigned by cashier's check or wire transfer of 
immediately available funds at or prior to the Closing.  The Company shall 
deliver the Shares to the undersigned at the Closing.


<PAGE>

       5.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company 
hereby represents and warrants to the undersigned that:

              (a)    The Company is duly incorporated, validly existing and in
       good standing under the laws of the State of Delaware, with full power
       and authority to conduct its business as it is currently being conducted
       and to own its assets.  The Company is duly qualified as a foreign
       corporation to do business in each jurisdiction in which the ownership of
       its property or the conduct of its business requires such qualification,
       except where the failure to so qualify would not materially or adversely
       affect the Company, its business, assets, condition (financial or
       otherwise) or operations.

              (b)    The Company has all requisite authority to enter into this
       Agreement and the Registration Rights Agreement (as defined in
       Section 17) and to perform all the obligations required to be performed
       by the Company hereunder and thereunder.  All corporate action on the
       part of the Company, its officers, directors and stockholders necessary
       for the authorization, execution and delivery of this Agreement and the
       Registration Rights Agreement, the performance of all the Company's
       obligations hereunder and thereunder, and for the authorization,
       issuance, sale and delivery of the Shares has been taken or will be taken
       prior to the Closing.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the Company, shall, assuming
       due execution and delivery by the undersigned, constitute a valid and
       legally binding obligation of the Company enforceable in accordance with
       its terms, except as the enforceability hereof and thereof may be limited
       by bankruptcy, insolvency, moratorium, reorganization or other similar
       laws affecting the enforcement of creditors' rights generally, and except
       for judicial limitations on the enforcement of the remedy of specific
       performance and other equitable remedies.

              (c)    The Shares, when issued and paid for, will represent duly
       authorized, validly issued and fully paid and nonassessable shares of
       Common Stock of the Company, free of any liens, claims or encumbrances
       except for restrictions on transfer imposed by state and federal
       securities laws and except for the liens, claims and encumbrances created
       by the undersigned, and the issuance of the Shares is not subject to any
       preemptive right or right of first refusal that has not been waived.

              (d)    Assuming the accuracy of the representations and warranties
       of the undersigned contained in Section 6 hereof on the date hereof and
       on the Closing Date, the offer, issue, and sale of the Shares are exempt
       from the registration and prospectus delivery requirements of the
       Securities Act and have been registered or qualified (or are exempt from
       registration and qualification) under the registration, permit, or
       qualification requirements of all applicable State Securities Laws.

              (e)    The Company has furnished to the undersigned the Company's
       annual report on Form 10-K for the fiscal year ended December 31, 1998
       (the "SEC 
                                       2

<PAGE>

       Document").  The Company warrants that, as of its date (or if
       amended, as of the date of such amendment), the SEC Document complied as
       to form in all material respects with the requirements of the Securities
       Exchange Act of 1934 (the "1934 Act"), and the information contained in
       such document, as of its date, did not contain any untrue statement of a
       material fact, and did not omit to state any material fact necessary to
       make any statement, in light of the circumstances under which such
       statement was made, not misleading.  The Company has not filed with the
       Securities and Exchange Commission (the "SEC") any reports under the 1934
       Act since the date of the SEC Document.

              (f)    The Company has, within the past twelve months, timely
       filed with the SEC all reports and other documents required to be so
       filed.

              (g)    The Company is authorized to issue 40,000,000 shares of 
       Common Stock and 15,000,000 shares of Preferred Stock.  As of March 
       31, 1999, there were 8,983,996 shares of Common Stock and no shares of 
       Preferred Stock outstanding.  No shares of capital stock of the 
       Company, or securities convertible into or exercisable for such 
       capital stock, have been issued by the Company since March 31, 1999 
       except for issuances pursuant to the Company's equity compensation 
       plans or pursuant to outstanding options, warrants, rights or 
       convertible notes, in each case as disclosed in the SEC Document.  All 
       outstanding shares of Common Stock have been duly authorized and 
       validly issued and are fully paid and non-assessable; and none of the 
       outstanding shares of Common Stock were issued in violation of the 
       preemptive rights, if any, of any stockholders of the Company.

              (h)    There is no action, suit or proceeding pending, or, to the
       Company's knowledge, threatened, against the Company (a) which questions
       the validity of this Agreement or the ability of the Company to
       consummate the transactions contemplated hereby or (b) which, singly or
       in the aggregate, if the subject of an unfavorable decision, ruling or
       finding, would materially adversely affect the business, properties,
       prospects, operations, or financial condition of the Company.

              (i)    To the Company's knowledge, there are no outstanding
       stockholder agreements, voting trusts, proxies or other arrangements or
       understandings among the stockholders of the Company relating to the
       voting of their respective shares other than proxies which have been or
       may be given in connection with the Company's annual meeting of
       stockholders and other than as disclosed in documents filed with the SEC
       pursuant to the Securities Exchange Act of 1934, as amended.

              (j)    The execution, delivery and performance of this Agreement
       and the Registration Rights Agreement and consummation of the
       transactions contemplated hereby and thereby will not (a) violate or
       conflict with any provisions of the Restated Certificate of
       Incorporation, as amended, or Bylaws of the Company; (b) result in any
       breach, violation of or default or loss of a benefit under, or conflict
       with, or permit the acceleration of any obligation under (in each case,
       upon the giving of notice, the 

                                       3

<PAGE>

       passage of time, or both) any mortgage, indenture, lease, loan 
       agreement or other agreement or instrument, permit, franchise, 
       license, judgment, order, decree, law, ordinance, rule or regulation 
       applicable to the Company or its properties.

              (k)    All consents, approvals, orders, or authorizations of, or
       registrations, qualifications, designations, declarations, or filings
       with, any federal, state or local governmental authority, required on the
       part of the Company in connection with the valid execution, delivery and
       performance of this Agreement and the Registration Rights Agreement, the
       offer, sale or issuance of the Shares, or the consummation of any other
       transaction contemplated hereby and thereby, have been obtained, or will
       be effective at the Closing, except for notices required or permitted to
       be filed with certain state and federal securities commissions after the
       Closing, which notices will be filed on a timely basis and except for
       filings and such other actions required to be taken pursuant to the
       Registration Rights Agreement after the date hereof.

              (l)    Except as disclosed in or contemplated by the SEC Document
       and except for the repurchase from Chiron Corporation on April 1, 1999 of
       three warrants to purchase shares of Common Stock of the Company, the
       Company has not otherwise had any material change in its condition,
       financial or otherwise, except for changes in the ordinary course of
       business, consistent with past practices, none of which individually or
       in the aggregate has had a material adverse effect on the Company.  

              (m)    The Common Stock of the Company is currently listed on the
       Nasdaq National Market and shall continue to be listed on either the
       Nasdaq National Market or The Nasdaq SmallCap Market.

              (n)    No representation or warranty by the Company in this
       Agreement, and no statement by an officer of the Company contained in any
       document, certificate or other writing furnished to the undersigned in
       connection with the transactions contemplated hereby, when taken as a
       whole, contains any untrue statement of a material fact or omits to state
       any material fact necessary to make statements herein or therein not
       misleading in light of the circumstances in which they are made.

       6.     REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE UNDERSIGNED.  
The undersigned hereby represents and warrants to and covenants with the 
Company that:

              (a)    GENERAL:

                     (i)    The undersigned has all requisite authority to enter
       into this Agreement and the Registration Rights Agreement and to perform
       all the obligations required to be performed by the undersigned hereunder
       and thereunder.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the undersigned, shall,
       assuming due execution and delivery by the Company, constitute a valid
       and legally binding obligation of the undersigned enforceable in
       accordance with its terms, except 

                                       4

<PAGE>

       as the enforceability hereof and thereof may be limited by bankruptcy, 
       insolvency, moratorium, reorganization or other similar laws affecting 
       the enforcement of creditors' rights generally, and except for 
       judicial limitations on the enforcement of the remedy of specific 
       performance and other equitable remedies.

                     (ii)   The undersigned is a resident of or is domiciled in
       the state or other jurisdiction set forth on the signature page hereto
       and is not acquiring the Shares as an agent or otherwise for any other
       person.

       (b)    INFORMATION CONCERNING THE COMPANY:

                     (i)    The undersigned realizes that purchase of the Shares
       is a speculative investment, and that the economic benefits which may be
       derived therefrom are uncertain.  In determining whether or not to make
       an investment in the Company, the undersigned has relied solely upon the
       written materials provided to the undersigned by the Company, receipt of
       which is hereby acknowledged, and upon independent investigations made by
       the undersigned and the undersigned's representatives.

                     (ii)   The opportunity has been made available to the
       undersigned to ask questions of and receive answers from representatives
       of the Company concerning the terms and conditions of the Shares and to
       review the Company's material books and records.

                     (iii)  The undersigned understands that no federal or state
       agency has passed upon the Shares or made any finding or determination
       concerning the fairness or advisability of this investment.

       (c)    STATUS OF UNDERSIGNED:

                     (i)    The undersigned, if an individual, has attained the
       age of majority (as established in the undersigned's state of residence),
       and, in any event, is under no disability with respect to entering into a
       contractual relationship with the Company and in executing this
       Agreement.

                     (ii)   The undersigned has such knowledge, skill and
       experience in business, financial and investment matters so that the
       undersigned is capable of evaluating the merits and risks of an
       investment in the Shares.  To the extent necessary, the undersigned has
       retained, at the undersigned's own expense, and relied upon, appropriate
       professional advice regarding the investment, tax and legal merits and
       consequences of this Agreement and of owning the Shares.

                     (iii)  The undersigned is an "accredited investor" as
       defined in Rule 501(a) under the Securities Act.  The undersigned agrees
       to furnish any 

                                       5

<PAGE>

       additional information requested to assure compliance with
       applicable federal and state securities laws in connection with the
       purchase and sale of the Shares.  The undersigned acknowledges that the
       undersigned has completed Part I, the Subscriber Information
       questionnaire, and Part II, the Accreditation Criteria questionnaire,
       previously provided to the undersigned and that the information contained
       therein is complete and accurate as of the date thereof and is hereby
       affirmed as of the date hereof.

                     (iv)   The information presented and statements made by the
       undersigned in the questionnaire referred to in Section 6(c)(iii)
       completed and delivered by the undersigned and returned to the Company
       with this Agreement, and any additional information supplied by the
       undersigned at the Company's request relating to the undersigned's
       income, net worth, investment experience or other matters, are complete
       and accurate as of this date and may be relied upon by the Company in
       determining whether to accept this offer.

                     (v)    The undersigned's commitment to investments that are
       not readily marketable is not disproportionate to the undersigned's net
       worth, and an investment in the Shares will not cause such commitment to
       become excessive.  The undersigned has adequate means of providing for
       the undersigned's current needs and contingencies and has no need for
       liquidity with respect to the undersigned's investment in the Shares, and
       can withstand a complete loss of such investment in the Shares.

       (d)    RESTRICTIONS ON TRANSFER OR SALE OF SHARES:

                     (i)    The undersigned is acquiring the Shares for the
       undersigned's own account for investment purposes and not with a view to
       or for resale in connection with any distribution thereof.  The
       undersigned understands that the Shares have not been registered under
       the Securities Act, or any State Securities Laws, in reliance on
       exemptions from registration which depend, in part, on the undersigned's
       investment intention; and, accordingly, the truth and accuracy of the
       foregoing representation will be relied upon by the Company to establish
       such exemptions.  The undersigned acknowledges that the Company is not
       required to recognize any transfer of the Shares unless, in the opinion
       of counsel to the Company, such transfer would not result in a violation
       of any federal or state law regarding the offer and sale of securities
       and unless the other restrictions on transfer set forth in the Shares are
       complied with.

                     (ii)   The undersigned understands that the Shares are
       "restricted securities" under applicable federal securities laws and that
       the Securities Act and the rules of the SEC provide in substance that the
       undersigned may dispose of the Shares only pursuant to an effective


                                       6

<PAGE>

       registration statement under the Securities Act or an exemption
       therefrom, and the undersigned understands that the Company has no
       obligation or intention to register any of the Shares (except for the
       registration rights referred to in Section 18 hereof), or to take action
       so as to permit sales pursuant to the Securities Act (including Rule 144
       thereunder).  Accordingly, the undersigned understands that, under the
       SEC's rules and until the Shares are registered for sale under the
       Securities Act, the undersigned may dispose of the Shares principally
       only in "private placements" which are exempt from registration under the
       Securities Act, in which event the transferee will acquire "restricted
       securities" subject to the same limitations as in the hands of the
       undersigned.  As a consequence, the undersigned understands that the
       undersigned must bear the economic risks of the investment in the Shares
       for an indefinite period of time.

                     (iii)  The undersigned agrees:  (A) that the undersigned
       will not sell, assign, pledge, give, transfer or otherwise dispose of the
       Shares or any interest therein, or make any offer or attempt to do any of
       the foregoing, except pursuant to a registration of the Shares, as
       applicable, under the Securities Act and all applicable State Securities
       Laws or in a transaction which is exempt from the registration provisions
       of the Securities Act and all applicable State Securities Laws; (B) that
       the certificate(s) for the Shares will bear a legend making reference to
       the foregoing restrictions; and (C) that the Company and any transfer
       agent for the Shares shall not be required to give effect to any
       purported transfer of such Shares except upon compliance with the
       foregoing restrictions.

                     (iv)   The undersigned has not offered or sold any portion
       of the undersigned's Shares.

                     (v)    The undersigned acknowledges that the Company has
       the right in its sole and absolute discretion to abandon this private
       placement at any time prior to the completion of the offering and to
       return the previously paid subscription price of the Shares, without
       interest thereon, to the undersigned.

                     (vi)   The undersigned has not used any person as a
       "Purchaser Representative" within the meaning of SEC Regulation D to
       represent it in determining whether it should purchase the Shares.

       7.     CONDITIONS TO CLOSING.

              (a)    CONDITIONS TO OBLIGATIONS OF THE UNDERSIGNED.  The
       undersigned's obligation to purchase the Shares at the Closing is subject
       to the fulfillment, at or prior to the Closing, of all of the following
       conditions, any of which may be waived by the undersigned:

                                       7

<PAGE>

                     (i)    The representations and warranties made by the
       Company in Section 5 hereof shall be true and correct in all respects on
       the date of the Closing with the same force and effect as if they had
       been made on and as of said date; and the Company shall have performed
       and complied with all obligations, agreements and conditions herein
       required to be performed by it on or prior to the Closing.

                     (ii)   All corporate and other proceedings in connection
       with the transactions contemplated at the Closing hereby and all
       documents and instruments incident to such transactions shall be
       reasonably satisfactory in substance and form to the undersigned, and the
       undersigned shall have received all such counterpart originals or
       certified or other copies of such documents as it may reasonably request.

                     (iii)  All authorizations, approvals, or permits, if any,
       of any governmental authority or regulatory body of the United States or
       of any state that are required in connection with the lawful sale and
       issuance of the Shares pursuant to this Agreement shall have been duly
       obtained and shall be effective on and as of the Closing, except for
       notices required or permitted to be filed with certain state and federal
       securities commissions after the Closing, which notices will be filed on
       a timely basis, and except for filings and other actions required to be
       taken pursuant to the Registration Rights Agreement after the date
       hereof. At the time of the Closing, the sale and issuance of the Shares
       shall be legally permitted by all laws and regulations to which the
       undersigned and the Company are subject.

                     (iv)   No stop order or other order enjoining the sale of
       the Shares shall have been issued and no proceedings for such purpose
       shall be pending or, to the knowledge of the Company, threatened by the
       SEC or any commissioner of corporations or similar officer of any other
       state having jurisdiction over this transaction.

                     (v)    The Company shall have delivered to the undersigned
       a Certificate, executed by the President of the Company, dated the
       Closing Date, certifying to (i) the fulfillment of the conditions
       specified in subparagraphs (i) and (iv) of this Section 8 and (ii) the
       incumbency of the officers of the Company executing this Agreement and
       the other instruments delivered by the Company upon the Closing.

              (b)    CONDITIONS TO OBLIGATIONS OF THE COMPANY.  In addition to,
       and not in limitation of, the Company's rights set forth in Section 2
       hereof, the Company's obligation to issue and sell the Shares at the
       Closing is subject to the fulfillment, on or prior to the Closing, of the
       following conditions, any of which may be waived by the Company:

                                       8

<PAGE>

                     (i)    The representations and warranties made by the
       undersigned in Section 6 hereof shall be true and correct in all respects
       on the date of the Closing with the same force and effect as if they had
       been made on and as of said date, and the undersigned shall have
       performed and complied with all obligations, agreements and conditions
       herein required to be performed by the undersigned on or before the
       Closing.

                     (ii)   All authorizations, approvals, or permits, if any,
       of any governmental authority or regulatory body of the United States or
       of any state that are required in connection with the lawful sale and
       issuance of the Shares pursuant to this Agreement shall have been duly
       obtained and shall be effective on and as of the Closing.  No stop order
       or other order enjoining the sale of the Shares shall have been issued
       and no proceedings for such purpose shall be pending or, to the knowledge
       of the Company, threatened by the SEC or any commissioner of corporations
       or similar officer of any state having jurisdiction over this
       transaction.  At the time of the Closing, the sale and issuance of the
       Shares shall be legally permitted by all laws and regulations to which
       the undersigned and the Company are subject.

       8.     LEGEND.  Each certificate for Shares will be imprinted with a
legend in substantially the following form:

       "THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED
       UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
       ANY STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED OR OFFERED
       FOR SALE OR TRANSFER UNLESS A REGISTRATION STATEMENT UNDER THE SECURITIES
       ACT AND OTHER APPLICABLE SECURITIES LAWS WITH RESPECT TO SUCH SECURITIES
       IS THEN IN EFFECT, OR, IN THE OPINION OF COUNSEL, SUCH REGISTRATION UNDER
       THE SECURITIES ACT AND OTHER APPLICABLE SECURITIES LAWS IS NOT REQUIRED."

       9.     BROKERS.  The undersigned has not entered into any agreement to
pay any broker's or finder's fee to any person with respect to this Agreement or
the transactions contemplated hereby.

       10.    FILING OF REPORTS.  The Company will, so long as it has securities
registered pursuant to Section 12 of the 1934 Act or has securities registered
pursuant to the Securities Act, make timely filing of such reports as are
required to be filed by it with the SEC so that Rule 144 under the Securities
Act or any successor provision thereto will be available to the security holders
of the Company who are otherwise able to take advantage of the provisions of
such Rule.

       11.    WAIVER, AMENDMENT.  Neither this Agreement nor any provisions 
hereof shall be modified, changed, discharged or terminated except by an 
instrument in writing, signed by the party against whom any waiver, change, 
discharge or termination is sought, and any 

                                       9

<PAGE>

waiver, change, discharge or termination shall be effective only to the 
extent specifically set forth in such writing.

       12.    ASSIGNABILITY.  Neither this Agreement nor any right, remedy, 
obligation or liability arising hereunder or by reason hereof shall be 
assignable by either the Company or the undersigned without the prior written 
consent of the other party.

       13.    APPLICABLE LAW.  This Agreement shall be governed by and 
construed in accordance with the laws of the State of Delaware.

       14.    SECTION AND OTHER HEADINGS.  The section and other headings 
contained in this Agreement are for reference purposes only and shall not 
affect the meaning or interpretation of this Agreement.

       15.    COUNTERPARTS.  This Agreement may be executed in any number of 
counterparts, each of which when so executed and delivered shall be deemed to 
be an original and all of which together shall be deemed to be one and the 
same agreement.

       16.    NOTICES.  All notices and other communications provided for 
herein shall be in writing and shall be deemed to have been duly given if 
delivered personally or sent by registered or certified mail, return receipt 
requested, postage prepaid:

              (a)    If to the Company, to it at the following address:

                            GalaGen Inc.
                            1275 Red Fox Road
                            Arden Hills, Minnesota 55112-6943
                            Attn:  Chief Executive Officer

              (b)    If to the undersigned, the address set forth on the
       signature page hereto;

or at such other address as either party shall have specified by notice in
writing to the other.

       17.    BINDING EFFECT.  The provisions of this Agreement shall be binding
upon and accrue to the benefit of the parties hereto and their respective heirs,
legal representatives, successors and assigns.

       18.    REGISTRATION RIGHTS.  The Company and the undersigned agree that
the undersigned shall have the benefit of the registration rights as set forth
in the Registration Rights Agreement of even date herewith, in the form attached
as Appendix A hereto (the "Registration Rights Agreement"), with respect to the
Shares.

       19.    SURVIVAL.  All representations, warranties and covenants contained
in this Agreement shall survive (i) the acceptance of the subscription by the
Company and (ii) if the undersigned is an individual, the death or disability of
the undersigned.

                                       10

<PAGE>

       20.    NOTIFICATION OF CHANGES.  The undersigned hereby covenants and 
agrees to notify the Company upon the occurrence of any event prior to the 
Closing of the purchase of the Shares pursuant to this Agreement which would 
cause any representation, warranty, or covenant of the undersigned contained 
in this Agreement to be false or incorrect.

       21.    ENTIRE AGREEMENT.  This Agreement, the Appendices hereto, and 
the other documents delivered pursuant hereto constitute the full and entire 
understanding and agreement among the parties with regard to the subjects 
hereof and no party shall be liable or bound to any other party in any manner 
by any representations, warranties, covenants, or agreements except as 
specifically set forth herein or therein.  Nothing in this Agreement, express 
or implied, is intended to confer upon any party, other than the parties 
hereto and their respective successors and assigns, any rights, remedies, 
obligations, or liabilities under or by reason of this Agreement, except as 
expressly provided herein.

       22.    SEPARABILITY.  In case any provision of this Agreement shall be 
invalid, illegal, or unenforceable, it shall to the extent practicable be 
modified so as to make it valid, legal and enforceable and to retain as 
nearly as practicable the intent of the parties, and the validity, legality, 
and enforceability of the remaining provisions shall not in any way be 
affected or impaired thereby.

       23.    DELAYS OR OMISSIONS.  No delay or omission to exercise any 
right, power, or remedy accruing to either party or its respective successors 
and assigns upon any breach, default or noncompliance of the other party 
hereto under this Agreement shall impair any such right, power, or remedy, 
nor shall it be construed to be a waiver of any such breach, default or 
noncompliance, or any acquiescence therein, or of any similar breach, default 
or noncompliance thereafter occurring.  It is further agreed that all 
remedies, either under this Agreement, by law, or otherwise afforded to 
either party shall be cumulative and not alternative.

       24.    PREVAILING PARTY.  If legal action is brought by, or on behalf 
of, either party to enforce or interpret this Agreement, the prevailing party 
shall be entitled to recover its attorneys' fees and legal costs in 
connection therewith.

                                       11

<PAGE>

       IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement and Investment Letter this ____ day of ________________, 1999.



                                       ---------------------------------------
                                       Signature

                                       ---------------------------------------
                                       Print Name

                                       ---------------------------------------
                                       Number and Street

                                       ---------------------------------------
                                       City, State and Zip

                                       ---------------------------------------
                                       Subscriber's Social Security
                                       or Tax Identification Number


                                       ---------------------------------------
                                       Signature of Co-owner if applicable


If Joint Ownership, check one (all parties must sign above):

( )    Joint Tenants with          ( )    Tenants in Common
       Right of Survivorship

( )    Community Property

If Fiduciary, Corporation or Partnership, check one:

( )    Trust         ( ) Estate           ( )    Power of Attorney

( )    Corporation   ( ) Partnership

                                       12

<PAGE>

Accepted as of __________,1999


GALAGEN INC.


By: 
     ----------------------------------------
   Name:
          -----------------------------------
   Title:     
          -----------------------------------




                                       13

   
    


<PAGE>

                                                                 EXHIBIT 4.9
                                                                   [Pension]

                             SUBSCRIPTION AGREEMENT AND
                                 INVESTMENT LETTER


GalaGen Inc.
1275 Red Fox Road
MS - 7420
Arden Hills, Minnesota 55112-6943


Gentlemen:

       The undersigned hereby subscribes for and offers to purchase from GalaGen
Inc., a Delaware corporation (the "Company"), 15,000 shares of Common Stock of
the Company, par value $.01 per share (the "Shares").  The undersigned further
understands that the offering is being made without registration of the Shares
under the Securities Act of 1933, as amended (the "Securities Act"), and is
being made only to "accredited investors" (as defined in Rule 501 of Regulation
D under the Securities Act).

       1.     PURCHASE PRICE.  Subject to the terms and conditions hereof, the
undersigned hereby irrevocably subscribes for the Shares for an aggregate
purchase price of $22,500, which amount is payable as described in Section 4
hereof.

       2.     ACCEPTANCE OF SUBSCRIPTION AND ISSUANCE OF SHARES.  It is
understood and agreed that the Company shall have the sole right, at its
complete discretion, to accept or reject this subscription, in whole or in part,
for any reason and that the same shall be deemed to be accepted by the Company
only when it is signed by a duly authorized officer of the Company and delivered
to the undersigned at the Closing referred to in Section 3 hereof. 
Notwithstanding anything in this Agreement to the contrary, the Company shall
have no obligation to issue any of the Shares to any person who is a resident of
a jurisdiction in which the issuance of Shares to such person would constitute a
violation of the securities, "blue sky" or other similar laws of such
jurisdiction (collectively referred to as the "State Securities Laws").

       3.     THE CLOSING.  The closing of the purchase and sale of the Shares
(the "Closing") shall take place on April 20, 1999 (the "Closing Date") and at a
place and at a time mutually agreed to by the Company and the undersigned.

       4.     PAYMENT FOR SHARES.  Payment for the Shares shall be received by
the Company from the undersigned by cashier's check or wire transfer of
immediately available funds at or prior to the Closing.  The Company shall
deliver the Shares to the undersigned at the Closing.

<PAGE>

       5.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company hereby
represents and warrants to the undersigned that:

              (a)    The Company is duly incorporated, validly existing and in
       good standing under the laws of the State of Delaware, with full power
       and authority to conduct its business as it is currently being conducted
       and to own its assets.  The Company is duly qualified as a foreign
       corporation to do business in each jurisdiction in which the ownership of
       its property or the conduct of its business requires such qualification,
       except where the failure to so qualify would not materially or adversely
       affect the Company, its business, assets, condition (financial or
       otherwise) or operations.

              (b)    The Company has all requisite authority to enter into this
       Agreement and the Registration Rights Agreement (as defined in
       Section 17) and to perform all the obligations required to be performed
       by the Company hereunder and thereunder.  All corporate action on the
       part of the Company, its officers, directors and stockholders necessary
       for the authorization, execution and delivery of this Agreement and the
       Registration Rights Agreement, the performance of all the Company's
       obligations hereunder and thereunder, and for the authorization,
       issuance, sale and delivery of the Shares has been taken or will be taken
       prior to the Closing.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the Company, shall, assuming
       due execution and delivery by the undersigned, constitute a valid and
       legally binding obligation of the Company enforceable in accordance with
       its terms, except as the enforceability hereof and thereof may be limited
       by bankruptcy, insolvency, moratorium, reorganization or other similar
       laws affecting the enforcement of creditors' rights generally, and except
       for judicial limitations on the enforcement of the remedy of specific
       performance and other equitable remedies.

              (c)    The Shares, when issued and paid for, will represent duly
       authorized, validly issued and fully paid and nonassessable shares of
       Common Stock of the Company, free of any liens, claims or encumbrances
       except for restrictions on transfer imposed by state and federal
       securities laws and except for the liens, claims and encumbrances created
       by the undersigned, and the issuance of the Shares is not subject to any
       preemptive right or right of first refusal that has not been waived.

              (d)    Assuming the accuracy of the representations and warranties
       of the undersigned contained in Section 6 hereof on the date hereof and
       on the Closing Date, the offer, issue, and sale of the Shares are exempt
       from the registration and prospectus delivery requirements of the
       Securities Act and have been registered or qualified (or are exempt from
       registration and qualification) under the registration, permit, or
       qualification requirements of all applicable State Securities Laws.

              (e)    The Company has furnished to the undersigned the Company's
       annual report on Form 10-K for the fiscal year ended December 31, 1998
       (the "SEC 

                                      2

<PAGE>

       Document").  The Company warrants that, as of its date (or if amended, 
       as of the date of such amendment), the SEC Document complied as to 
       form in all material respects with the requirements of the Securities
       Exchange Act of 1934 (the "1934 Act"), and the information contained in
       such document, as of its date, did not contain any untrue statement of a
       material fact, and did not omit to state any material fact necessary to
       make any statement, in light of the circumstances under which such
       statement was made, not misleading.  The Company has not filed with the
       Securities and Exchange Commission (the "SEC") any reports under the 1934
       Act since the date of the SEC Document.

              (f)    The Company has, within the past twelve months, timely
       filed with the SEC all reports and other documents required to be so
       filed.

              (g)    The Company is authorized to issue 40,000,000 shares of
       Common Stock and 15,000,000 shares of Preferred Stock.  As of March 31,
       1999, there were 8,983,996 shares of Common Stock and no shares of
       Preferred Stock outstanding.  No shares of capital stock of the Company,
       or securities convertible into or exercisable for such capital stock,
       have been issued by the Company since March 31, 1999 except for issuances
       pursuant to the Company's equity compensation plans or pursuant to
       outstanding options, warrants, rights or convertible notes, in each case
       as disclosed in the SEC Document.  All outstanding shares of Common Stock
       have been duly authorized and validly issued and are fully paid and 
       non-assessable; and none of the outstanding shares of Common Stock were
       issued in violation of the preemptive rights, if any, of any stockholders
       of the Company.

              (h)    There is no action, suit or proceeding pending, or, to the
       Company's knowledge, threatened, against the Company (a) which questions
       the validity of this Agreement or the ability of the Company to
       consummate the transactions contemplated hereby or (b) which, singly or
       in the aggregate, if the subject of an unfavorable decision, ruling or
       finding, would materially adversely affect the business, properties,
       prospects, operations, or financial condition of the Company.

              (i)    To the Company's knowledge, there are no outstanding
       stockholder agreements, voting trusts, proxies or other arrangements or
       understandings among the stockholders of the Company relating to the
       voting of their respective shares other than proxies which have been or
       may be given in connection with the Company's annual meeting of
       stockholders and other than as disclosed in documents filed with the SEC
       pursuant to the Securities Exchange Act of 1934, as amended.

              (j)    The execution, delivery and performance of this Agreement
       and the Registration Rights Agreement and consummation of the
       transactions contemplated hereby and thereby will not (a) violate or
       conflict with any provisions of the Restated Certificate of
       Incorporation, as amended, or Bylaws of the Company; (b) result in any
       breach, violation of or default or loss of a benefit under, or conflict
       with, or permit the acceleration of any obligation under (in each case,
       upon the giving of notice, the 


                                      3

<PAGE>

       passage of time, or both) any mortgage, indenture, lease, loan agreement 
       or other agreement or instrument, permit, franchise, license, judgment, 
       order, decree, law, ordinance, rule or regulation applicable to the 
       Company or its properties.

              (k)    All consents, approvals, orders, or authorizations of, or
       registrations, qualifications, designations, declarations, or filings
       with, any federal, state or local governmental authority, required on the
       part of the Company in connection with the valid execution, delivery and
       performance of this Agreement and the Registration Rights Agreement, the
       offer, sale or issuance of the Shares, or the consummation of any other
       transaction contemplated hereby and thereby, have been obtained, or will
       be effective at the Closing, except for notices required or permitted to
       be filed with certain state and federal securities commissions after the
       Closing, which notices will be filed on a timely basis and except for
       filings and such other actions required to be taken pursuant to the
       Registration Rights Agreement after the date hereof.

              (l)    Except as disclosed in or contemplated by the SEC Document
       and except for the repurchase from Chiron Corporation on April 1, 1999 of
       three warrants to purchase shares of Common Stock of the Company, the
       Company has not otherwise had any material change in its condition,
       financial or otherwise, except for changes in the ordinary course of
       business, consistent with past practices, none of which individually or
       in the aggregate has had a material adverse effect on the Company.  

              (m)    The Common Stock of the Company is currently listed on the
       Nasdaq National Market and shall continue to be listed on either the
       Nasdaq National Market or The Nasdaq SmallCap Market.

              (n)    No representation or warranty by the Company in this
       Agreement, and no statement by an officer of the Company contained in any
       document, certificate or other writing furnished to the undersigned in
       connection with the transactions contemplated hereby, when taken as a
       whole, contains any untrue statement of a material fact or omits to state
       any material fact necessary to make statements herein or therein not
       misleading in light of the circumstances in which they are made.

       6.     REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE UNDERSIGNED.  The
undersigned hereby represents and warrants to and covenants with the Company
that:

              (a)    GENERAL:

                     (i)    The undersigned has all requisite authority to enter
              into this Agreement and the Registration Rights Agreement and to 
              perform all the obligations required to be performed by the 
              undersigned hereunder and thereunder.  Each of this Agreement and 
              the Registration Rights Agreement, when executed and delivered by 
              the undersigned, shall, assuming due execution and delivery by 
              the Company, constitute a valid and legally binding obligation 
              of the undersigned enforceable in accordance with its terms, 
              except 


                                      4

<PAGE>

              as the enforceability hereof and thereof may be limited by 
              bankruptcy, insolvency, moratorium, reorganization or other 
              similar laws affecting the enforcement of creditors' rights 
              generally, and except for judicial limitations on the 
              enforcement of the remedy of specific performance and other 
              equitable remedies.

                     (ii)   The undersigned is a resident of or is domiciled 
              in the state or other jurisdiction set forth on the signature 
              page hereto and is not acquiring the Shares as an agent or 
              otherwise for any other person.

              (b)    INFORMATION CONCERNING THE COMPANY:

                     (i)    The undersigned realizes that purchase of the 
              Shares is a speculative investment, and that the economic 
              benefits which may be derived therefrom are uncertain.  In 
              determining whether or not to make an investment in the 
              Company, the undersigned has relied solely upon the written 
              materials provided to the undersigned by the Company, receipt 
              of which is hereby acknowledged, and upon independent 
              investigations made by the undersigned and the undersigned's 
              representatives.

                     (ii)   The opportunity has been made available to the 
              undersigned to ask questions of and receive answers from 
              representatives of the Company concerning the terms and 
              conditions of the Shares and to review the Company's material 
              books and records.

                     (iii)  The undersigned understands that no federal or 
              state agency has passed upon the Shares or made any finding or 
              determination concerning the fairness or advisability of this 
              investment.

        (c)    STATUS OF UNDERSIGNED:

                     (i)    The undersigned, if an individual, has attained 
              the age of majority (as established in the undersigned's state 
              of residence), and, in any event, is under no disability with 
              respect to entering into a contractual relationship with the 
              Company and in executing this Agreement.

                     (ii)   The undersigned has such knowledge, skill and 
              experience in business, financial and investment matters so 
              that the undersigned is capable of evaluating the merits and 
              risks of an investment in the Shares.  To the extent necessary, 
              the undersigned has retained, at the undersigned's own expense, 
              and relied upon, appropriate professional advice regarding the 
              investment, tax and legal merits and consequences of this 
              Agreement and of owning the Shares.

                     (iii)  The undersigned is an "accredited investor" as 
              defined in Rule 501(a) under the Securities Act.  The 
              undersigned agrees to furnish any 


                                      5

<PAGE>

              additional information requested to assure compliance with 
              applicable federal and state securities laws in connection 
              with the purchase and sale of the Shares.  The undersigned 
              acknowledges that the undersigned has completed Part I, the 
              Subscriber Information questionnaire, and Part II, the 
              Accreditation Criteria questionnaire, previously provided to 
              the undersigned and that the information contained therein 
              is complete and accurate as of the date thereof and is hereby 
              affirmed as of the date hereof.

                     (iv)   The information presented and statements made by 
              the undersigned in the questionnaire referred to in Section 
              6(c)(iii) completed and delivered by the undersigned and 
              returned to the Company with this Agreement, and any additional 
              information supplied by the undersigned at the Company's 
              request relating to the undersigned's income, net worth, 
              investment experience or other matters, are complete and 
              accurate as of this date and may be relied upon by the Company 
              in determining whether to accept this offer.

                     (v)    The undersigned's commitment to investments that 
              are not readily marketable is not disproportionate to the 
              undersigned's net worth, and an investment in the Shares will 
              not cause such commitment to become excessive.  The undersigned 
              has adequate means of providing for the undersigned's current 
              needs and contingencies and has no need for liquidity with 
              respect to the undersigned's investment in the Shares, and can 
              withstand a complete loss of such investment in the Shares.

              (d)    RESTRICTIONS ON TRANSFER OR SALE OF SHARES:

                     (i)    The undersigned is acquiring the Shares for the 
              undersigned's own account for investment purposes and not with 
              a view to or for resale in connection with any distribution 
              thereof.  The undersigned understands that the Shares have not 
              been registered under the Securities Act, or any State 
              Securities Laws, in reliance on exemptions from registration 
              which depend, in part, on the undersigned's investment 
              intention; and, accordingly, the truth and accuracy of the 
              foregoing representation will be relied upon by the Company to 
              establish such exemptions.  The undersigned acknowledges that 
              the Company is not required to recognize any transfer of the 
              Shares unless, in the opinion of counsel to the Company, such 
              transfer would not result in a violation of any federal or 
              state law regarding the offer and sale of securities and unless 
              the other restrictions on transfer set forth in the Shares are 
              complied with.

                     (ii)   The undersigned understands that the Shares are 
              "restricted securities" under applicable federal securities 
              laws and that the Securities Act and the rules of the SEC 
              provide in substance that the undersigned may dispose of the 
              Shares only pursuant to an effective
        
                                      6

<PAGE>

              registration statement under the Securities Act or an exemption 
              therefrom, and the undersigned understands that the Company has 
              no obligation or intention to register any of the Shares 
              (except for the registration rights referred to in Section 18 
              hereof), or to take action so as to permit sales pursuant to 
              the Securities Act (including Rule 144 thereunder).  
              Accordingly, the undersigned understands that, under the SEC's 
              rules and until the Shares are registered for sale under the 
              Securities Act, the undersigned may dispose of the Shares 
              principally only in "private placements" which are exempt from 
              registration under the Securities Act, in which event the 
              transferee will acquire "restricted securities" subject to the 
              same limitations as in the hands of the undersigned.  As a 
              consequence, the undersigned understands that the undersigned 
              must bear the economic risks of the investment in the Shares 
              for an indefinite period of time.

                     (iii)  The undersigned agrees:  (A) that the undersigned 
              will not sell, assign, pledge, give, transfer or otherwise 
              dispose of the Shares or any interest therein, or make any 
              offer or attempt to do any of the foregoing, except pursuant to 
              a registration of the Shares, as applicable, under the 
              Securities Act and all applicable State Securities Laws or in a 
              transaction which is exempt from the registration provisions of 
              the Securities Act and all applicable State Securities Laws; 
              (B) that the certificate(s) for the Shares will bear a legend 
              making reference to the foregoing restrictions; and (C) that 
              the Company and any transfer agent for the Shares shall not be 
              required to give effect to any purported transfer of such 
              Shares except upon compliance with the foregoing restrictions.

                     (iv)   The undersigned has not offered or sold any 
              portion of the undersigned's Shares.

                     (v)    The undersigned acknowledges that the Company has 
              the right in its sole and absolute discretion to abandon this 
              private placement at any time prior to the completion of the 
              offering and to return the previously paid subscription price 
              of the Shares, without interest thereon, to the undersigned.

                     (vi)   The undersigned has not used any person as a 
              "Purchaser Representative" within the meaning of SEC Regulation 
              D to represent it in determining whether it should purchase the 
              Shares.

       7.     CONDITIONS TO CLOSING.

              (a)    CONDITIONS TO OBLIGATIONS OF THE UNDERSIGNED.  The
       undersigned's obligation to purchase the Shares at the Closing is subject
       to the fulfillment, at or prior to the Closing, of all of the following
       conditions, any of which may be waived by the undersigned:


                                      7

<PAGE>

                     (i)    The representations and warranties made by the 
              Company in Section 5 hereof shall be true and correct in all 
              respects on the date of the Closing with the same force and 
              effect as if they had been made on and as of said date; and the 
              Company shall have performed and complied with all obligations, 
              agreements and conditions herein required to be performed by it 
              on or prior to the Closing.

                     (ii)   All corporate and other proceedings in connection 
              with the transactions contemplated at the Closing hereby and 
              all documents and instruments incident to such transactions 
              shall be reasonably satisfactory in substance and form to the 
              undersigned, and the undersigned shall have received all such 
              counterpart originals or certified or other copies of such 
              documents as it may reasonably request.

                     (iii)  All authorizations, approvals, or permits, if 
              any, of any governmental authority or regulatory body of the 
              United States or of any state that are required in connection 
              with the lawful sale and issuance of the Shares pursuant to 
              this Agreement shall have been duly obtained and shall be 
              effective on and as of the Closing, except for notices required 
              or permitted to be filed with certain state and federal 
              securities commissions after the Closing, which notices will be 
              filed on a timely basis, and except for filings and other 
              actions required to be taken pursuant to the Registration 
              Rights Agreement after the date hereof. At the time of the 
              Closing, the sale and issuance of the Shares shall be legally 
              permitted by all laws and regulations to which the undersigned 
              and the Company are subject.

                     (iv)   No stop order or other order enjoining the sale 
              of the Shares shall have been issued and no proceedings for 
              such purpose shall be pending or, to the knowledge of the 
              Company, threatened by the SEC or any commissioner of 
              corporations or similar officer of any other state having 
              jurisdiction over this transaction.

                     (v)    The Company shall have delivered to the 
              undersigned a Certificate, executed by the President of the 
              Company, dated the Closing Date, certifying to (i) the 
              fulfillment of the conditions specified in subparagraphs (i) 
              and (iv) of this Section 8 and (ii) the incumbency of the 
              officers of the Company executing this Agreement and the other 
              instruments delivered by the Company upon the Closing.

              (b)    CONDITIONS TO OBLIGATIONS OF THE COMPANY.  In addition to,
       and not in limitation of, the Company's rights set forth in Section 2
       hereof, the Company's obligation to issue and sell the Shares at the
       Closing is subject to the fulfillment, on or prior to the Closing, of the
       following conditions, any of which may be waived by the Company:


                                      8

<PAGE>

                     (i)    The representations and warranties made by the 
              undersigned in Section 6 hereof shall be true and correct in 
              all respects on the date of the Closing with the same force and 
              effect as if they had been made on and as of said date, and the 
              undersigned shall have performed and complied with all 
              obligations, agreements and conditions herein required to be 
              performed by the undersigned on or before the Closing.

                     (ii)   All authorizations, approvals, or permits, if 
              any, of any governmental authority or regulatory body of the 
              United States or of any state that are required in connection 
              with the lawful sale and issuance of the Shares pursuant to 
              this Agreement shall have been duly obtained and shall be 
              effective on and as of the Closing.  No stop order or other 
              order enjoining the sale of the Shares shall have been issued 
              and no proceedings for such purpose shall be pending or, to the 
              knowledge of the Company, threatened by the SEC or any 
              commissioner of corporations or similar officer of any state 
              having jurisdiction over this transaction.  At the time of the 
              Closing, the sale and issuance of the Shares shall be legally 
              permitted by all laws and regulations to which the undersigned 
              and the Company are subject.

       8.     LEGEND.  Each certificate for Shares will be imprinted with a
legend in substantially the following form:

       "THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED
       UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
       ANY STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED OR OFFERED
       FOR SALE OR TRANSFER UNLESS A REGISTRATION STATEMENT UNDER THE SECURITIES
       ACT AND OTHER APPLICABLE SECURITIES LAWS WITH RESPECT TO SUCH SECURITIES
       IS THEN IN EFFECT, OR, IN THE OPINION OF COUNSEL, SUCH REGISTRATION UNDER
       THE SECURITIES ACT AND OTHER APPLICABLE SECURITIES LAWS IS NOT REQUIRED."

       9.     BROKERS.  The undersigned has not entered into any agreement to
pay any broker's or finder's fee to any person with respect to this Agreement or
the transactions contemplated hereby.

       10.    FILING OF REPORTS.  The Company will, so long as it has securities
registered pursuant to Section 12 of the 1934 Act or has securities registered
pursuant to the Securities Act, make timely filing of such reports as are
required to be filed by it with the SEC so that Rule 144 under the Securities
Act or any successor provision thereto will be available to the security holders
of the Company who are otherwise able to take advantage of the provisions of
such Rule.

       11.    WAIVER, AMENDMENT.  Neither this Agreement nor any provisions
hereof shall be modified, changed, discharged or terminated except by an
instrument in writing, signed by the party against whom any waiver, change,
discharge or termination is sought, and any 


                                      9

<PAGE>

waiver, change, discharge or termination shall be effective only to the 
extent specifically set forth in such writing.

       12.    ASSIGNABILITY.  Neither this Agreement nor any right, remedy,
obligation or liability arising hereunder or by reason hereof shall be
assignable by either the Company or the undersigned without the prior written
consent of the other party.

       13.    APPLICABLE LAW.  This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware.

       14.    SECTION AND OTHER HEADINGS.  The section and other headings
contained in this Agreement are for reference purposes only and shall not affect
the meaning or interpretation of this Agreement.

       15.    COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which together shall be deemed to be one and the same
agreement.

       16.    NOTICES.  All notices and other communications provided for herein
shall be in writing and shall be deemed to have been duly given if delivered
personally or sent by registered or certified mail, return receipt requested,
postage prepaid:

              (a)    If to the Company, to it at the following address:

                         GalaGen Inc.
                         1275 Red Fox Road
                         Arden Hills, Minnesota 55112-6943
                         Attn:  Chief Executive Officer

              (b)    If to the undersigned, the address set forth on the
       signature page hereto;

or at such other address as either party shall have specified by notice in
writing to the other.

       17.    BINDING EFFECT.  The provisions of this Agreement shall be binding
upon and accrue to the benefit of the parties hereto and their respective heirs,
legal representatives, successors and assigns.

       18.    REGISTRATION RIGHTS.  The Company and the undersigned agree that
the undersigned shall have the benefit of the registration rights as set forth
in the Registration Rights Agreement of even date herewith, in the form attached
as Appendix A hereto (the "Registration Rights Agreement"), with respect to the
Shares.

       19.    SURVIVAL.  All representations, warranties and covenants contained
in this Agreement shall survive (i) the acceptance of the subscription by the
Company and (ii) if the undersigned is an individual, the death or disability of
the undersigned.


                                      10

<PAGE>

       20.    NOTIFICATION OF CHANGES.  The undersigned hereby covenants and
agrees to notify the Company upon the occurrence of any event prior to the
Closing of the purchase of the Shares pursuant to this Agreement which would
cause any representation, warranty, or covenant of the undersigned contained in
this Agreement to be false or incorrect.

       21.    ENTIRE AGREEMENT.  This Agreement, the Appendices hereto, and the
other documents delivered pursuant hereto constitute the full and entire
understanding and agreement among the parties with regard to the subjects hereof
and no party shall be liable or bound to any other party in any manner by any
representations, warranties, covenants, or agreements except as specifically set
forth herein or therein.  Nothing in this Agreement, express or implied, is
intended to confer upon any party, other than the parties hereto and their
respective successors and assigns, any rights, remedies, obligations, or
liabilities under or by reason of this Agreement, except as expressly provided
herein.

       22.    SEPARABILITY.  In case any provision of this Agreement shall be
invalid, illegal, or unenforceable, it shall to the extent practicable be
modified so as to make it valid, legal and enforceable and to retain as nearly
as practicable the intent of the parties, and the validity, legality, and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

       23.    DELAYS OR OMISSIONS.  No delay or omission to exercise any right,
power, or remedy accruing to either party or its respective successors and
assigns upon any breach, default or noncompliance of the other party hereto
under this Agreement shall impair any such right, power, or remedy, nor shall it
be construed to be a waiver of any such breach, default or noncompliance, or any
acquiescence therein, or of any similar breach, default or noncompliance
thereafter occurring.  It is further agreed that all remedies, either under this
Agreement, by law, or otherwise afforded to either party shall be cumulative and
not alternative.

       24.    PREVAILING PARTY.  If legal action is brought by, or on behalf of,
either party to enforce or interpret this Agreement, the prevailing party shall
be entitled to recover its attorneys' fees and legal costs in connection
therewith.


                                      11

<PAGE>

       IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement and Investment Letter this ____ day of ________________, 1999.



                                 -------------------------------------
                                 Signature


                                 -------------------------------------
                                 Print Name


                                 -------------------------------------
                                 Number and Street


                                 -------------------------------------
                                 City, State and Zip


                                 -------------------------------------
                                 Subscriber's Social Security
                                 or Tax Identification Number


                                 -------------------------------------
                                 Signature of Co-owner if applicable


If Joint Ownership, check one (all parties must sign above):

( )    Joint Tenants with          ( )    Tenants in Common
       Right of Survivorship

( )    Community Property

If Fiduciary, Corporation or Partnership, check one:

( )    Trust         ( ) Estate           ( )    Power of Attorney

( )    Corporation   ( ) Partnership


                                       12

<PAGE>

Accepted as of __________, 1999


GALAGEN INC.


By: 
    ----------------------------------------
   Name:      
        ------------------------------------
   Title:     
         -----------------------------------


                                      13

   
    



<PAGE>

                                                                EXHIBIT 4.10
                                                                     [Wallin]

                             SUBSCRIPTION AGREEMENT AND
                                 INVESTMENT LETTER


GalaGen Inc.
1275 Red Fox Road
MS - 7420
Arden Hills, Minnesota 55112-6943


Gentlemen:

       The undersigned hereby subscribes for and offers to purchase from GalaGen
Inc., a Delaware corporation (the "Company"), 200,000 shares of Common Stock of
the Company, par value $.01 per share (the "Shares").  The undersigned further
understands that the offering is being made without registration of the Shares
under the Securities Act of 1933, as amended (the "Securities Act"), and is
being made only to "accredited investors" (as defined in Rule 501 of Regulation
D under the Securities Act).

       1.     PURCHASE PRICE.  Subject to the terms and conditions hereof, the
undersigned hereby irrevocably subscribes for the Shares for an aggregate
purchase price of $300,000, which amount is payable as described in Section 4
hereof.

       2.     ACCEPTANCE OF SUBSCRIPTION AND ISSUANCE OF SHARES.  It is
understood and agreed that the Company shall have the sole right, at its
complete discretion, to accept or reject this subscription, in whole or in part,
for any reason and that the same shall be deemed to be accepted by the Company
only when it is signed by a duly authorized officer of the Company and delivered
to the undersigned at the Closing referred to in Section 3 hereof. 
Notwithstanding anything in this Agreement to the contrary, the Company shall
have no obligation to issue any of the Shares to any person who is a resident of
a jurisdiction in which the issuance of Shares to such person would constitute a
violation of the securities, "blue sky" or other similar laws of such
jurisdiction (collectively referred to as the "State Securities Laws").

       3.     THE CLOSING.  The closing of the purchase and sale of the Shares
(the "Closing") shall take place on April 20, 1999 (the "Closing Date") and at a
place and at a time mutually agreed to by the Company and the undersigned.

       4.     PAYMENT FOR SHARES.  Payment for the Shares shall be received by
the Company from the undersigned by cashier's check or wire transfer of
immediately available funds at or prior to the Closing.  The Company shall
deliver the Shares to the undersigned at the Closing.

<PAGE>

       5.     REPRESENTATIONS AND WARRANTIES OF THE COMPANY.  The Company hereby
represents and warrants to the undersigned that:

              (a)    The Company is duly incorporated, validly existing and in
       good standing under the laws of the State of Delaware, with full power
       and authority to conduct its business as it is currently being conducted
       and to own its assets.  The Company is duly qualified as a foreign
       corporation to do business in each jurisdiction in which the ownership of
       its property or the conduct of its business requires such qualification,
       except where the failure to so qualify would not materially or adversely
       affect the Company, its business, assets, condition (financial or
       otherwise) or operations.

              (b)    The Company has all requisite authority to enter into this
       Agreement and the Registration Rights Agreement (as defined in
       Section 17) and to perform all the obligations required to be performed
       by the Company hereunder and thereunder.  All corporate action on the
       part of the Company, its officers, directors and stockholders necessary
       for the authorization, execution and delivery of this Agreement and the
       Registration Rights Agreement, the performance of all the Company's
       obligations hereunder and thereunder, and for the authorization,
       issuance, sale and delivery of the Shares has been taken or will be taken
       prior to the Closing.  Each of this Agreement and the Registration Rights
       Agreement, when executed and delivered by the Company, shall, assuming
       due execution and delivery by the undersigned, constitute a valid and
       legally binding obligation of the Company enforceable in accordance with
       its terms, except as the enforceability hereof and thereof may be limited
       by bankruptcy, insolvency, moratorium, reorganization or other similar
       laws affecting the enforcement of creditors' rights generally, and except
       for judicial limitations on the enforcement of the remedy of specific
       performance and other equitable remedies.

              (c)    The Shares, when issued and paid for, will represent duly
       authorized, validly issued and fully paid and nonassessable shares of
       Common Stock of the Company, free of any liens, claims or encumbrances
       except for restrictions on transfer imposed by state and federal
       securities laws and except for the liens, claims and encumbrances created
       by the undersigned, and the issuance of the Shares is not subject to any
       preemptive right or right of first refusal that has not been waived.

              (d)    Assuming the accuracy of the representations and warranties
       of the undersigned contained in Section 6 hereof on the date hereof and
       on the Closing Date, the offer, issue, and sale of the Shares are exempt
       from the registration and prospectus delivery requirements of the
       Securities Act and have been registered or qualified (or are exempt from
       registration and qualification) under the registration, permit, or
       qualification requirements of all applicable State Securities Laws.


                                      2

<PAGE>

              (e)    The Company has furnished to the undersigned the Company's
       annual report on Form 10-K for the fiscal year ended December 31, 1998
       (the "SEC Document").  The Company warrants that, as of its date (or if
       amended, as of the date of such amendment), the SEC Document complied as
       to form in all material respects with the requirements of the Securities
       Exchange Act of 1934 (the "1934 Act"), and the information contained in
       such document, as of its date, did not contain any untrue statement of a
       material fact, and did not omit to state any material fact necessary to
       make any statement, in light of the circumstances under which such
       statement was made, not misleading.  The Company has not filed with the
       Securities and Exchange Commission (the "SEC") any reports under the 1934
       Act since the date of the SEC Document.

              (f)    The Company has, within the past twelve months, timely
       filed with the SEC all reports and other documents required to be so
       filed.

              (g)    The Company is authorized to issue 40,000,000 shares of
       Common Stock and 15,000,000 shares of Preferred Stock.  As of March 31,
       1999, there were 8,983,996 shares of Common Stock and no shares of
       Preferred Stock outstanding.  No shares of capital stock of the Company,
       or securities convertible into or exercisable for such capital stock,
       have been issued by the Company since March 31, 1999 except for issuances
       pursuant to the Company's equity compensation plans or pursuant to
       outstanding options, warrants, rights or convertible notes, in each case
       as disclosed in the SEC Document.  All outstanding shares of Common Stock
       have been duly authorized and validly issued and are fully paid and 
       non-assessable; and none of the outstanding shares of Common Stock were
       issued in violation of the preemptive rights, if any, of any stockholders
       of the Company.

              (h)    There is no action, suit or proceeding pending, or, to the
       Company's knowledge, threatened, against the Company (a) which questions
       the validity of this Agreement or the ability of the Company to
       consummate the transactions contemplated hereby or (b) which, singly or
       in the aggregate, if the subject of an unfavorable decision, ruling or
       finding, would materially adversely affect the business, properties,
       prospects, operations, or financial condition of the Company.

              (i)    To the Company's knowledge, there are no outstanding
       stockholder agreements, voting trusts, proxies or other arrangements or
       understandings among the stockholders of the Company relating to the
       voting of their respective shares other than proxies which have been or
       may be given in connection with the Company's annual meeting of
       stockholders and other than as disclosed in documents filed with the SEC
       pursuant to the Securities Exchange Act of 1934, as amended.

              (j)    The execution, delivery and performance of this Agreement
       and the Registration Rights Agreement and consummation of the
       transactions contemplated hereby and thereby will not (a) violate or
       conflict with any provisions of the Restated 


                                      3

<PAGE>

       Certificate of Incorporation, as amended, or Bylaws of the Company; 
       (b) result in any breach, violation of or default or loss of a benefit 
       under, or conflict with, or permit the acceleration of any obligation 
       under (in each case, upon the giving of notice, the passage of time, or 
       both) any mortgage, indenture, lease, loan agreement or other agreement 
       or instrument, permit, franchise, license, judgment, order, decree, law,
       ordinance, rule or regulation applicable to the Company or its 
       properties.

              (k)    All consents, approvals, orders, or authorizations of, or
       registrations, qualifications, designations, declarations, or filings
       with, any federal, state or local governmental authority, required on the
       part of the Company in connection with the valid execution, delivery and
       performance of this Agreement and the Registration Rights Agreement, the
       offer, sale or issuance of the Shares, or the consummation of any other
       transaction contemplated hereby and thereby, have been obtained, or will
       be effective at the Closing, except for notices required or permitted to
       be filed with certain state and federal securities commissions after the
       Closing, which notices will be filed on a timely basis and except for
       filings and such other actions required to be taken pursuant to the
       Registration Rights Agreement after the date hereof.

              (l)    Except as disclosed in or contemplated by the SEC Document
       and except for the repurchase from Chiron Corporation on April 1, 1999 of
       three warrants to purchase shares of Common Stock of the Company, the
       Company has not otherwise had any material change in its condition,
       financial or otherwise, except for changes in the ordinary course of
       business, consistent with past practices, none of which individually or
       in the aggregate has had a material adverse effect on the Company.  

              (m)    The Common Stock of the Company is currently listed on the
       Nasdaq National Market and shall continue to be listed on either the
       Nasdaq National Market or The Nasdaq SmallCap Market.

              (n)    No representation or warranty by the Company in this
       Agreement, and no statement by an officer of the Company contained in any
       document, certificate or other writing furnished to the undersigned in
       connection with the transactions contemplated hereby, when taken as a
       whole, contains any untrue statement of a material fact or omits to state
       any material fact necessary to make statements herein or therein not
       misleading in light of the circumstances in which they are made.

       6.     REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE UNDERSIGNED.  The
undersigned hereby represents and warrants to and covenants with the Company
that:

              (a)    GENERAL:

                     (i)    The undersigned has all requisite authority to enter
              into this Agreement and the Registration Rights Agreement and to
              perform all the 


                                      4

<PAGE>

              obligations required to be performed by the undersigned hereunder 
              and thereunder.  Each of this Agreement and the Registration 
              Rights Agreement, when executed and delivered by the undersigned, 
              shall, assuming due execution and delivery by the Company, 
              constitute a valid and legally binding obligation of the 
              undersigned enforceable in accordance with its terms, except as
              the enforceability hereof and thereof may be limited by
              bankruptcy, insolvency, moratorium, reorganization or other
              similar laws affecting the enforcement of creditors' rights
              generally, and except for judicial limitations on the enforcement
              of the remedy of specific performance and other equitable
              remedies.

                     (ii)   The undersigned is a resident of or is domiciled in
              the state or other jurisdiction set forth on the signature page
              hereto and is not acquiring the Shares as an agent or otherwise
              for any other person.

              (b)    INFORMATION CONCERNING THE COMPANY:

                     (i)    The undersigned realizes that purchase of the Shares
              is a speculative investment, and that the economic benefits which
              may be derived therefrom are uncertain.  In determining whether or
              not to make an investment in the Company, the undersigned has
              relied solely upon the written materials provided to the
              undersigned by the Company, receipt of which is hereby
              acknowledged, and upon independent investigations made by the
              undersigned and the undersigned's representatives.

                     (ii)   The opportunity has been made available to the
              undersigned to ask questions of and receive answers from
              representatives of the Company concerning the terms and conditions
              of the Shares and to review the Company's material books and
              records.

                     (iii)  The undersigned understands that no federal or state
              agency has passed upon the Shares or made any finding or
              determination concerning the fairness or advisability of this
              investment.

              (c)    STATUS OF UNDERSIGNED:

                     (i)    The undersigned, if an individual, has attained the
              age of majority (as established in the undersigned's state of
              residence), and, in any event, is under no disability with respect
              to entering into a contractual relationship with the Company and
              in executing this Agreement.

                     (ii)   The undersigned has such knowledge, skill and
              experience in business, financial and investment matters so that
              the undersigned is capable of evaluating the merits and risks of
              an investment in the Shares.  To the extent 


                                      5

<PAGE>

              necessary, the undersigned has retained, at the undersigned's own 
              expense, and relied upon, appropriate professional advice 
              regarding the investment, tax and legal merits and consequences 
              of this Agreement and of owning the Shares.

                     (iii)  The undersigned is an "accredited investor" as
              defined in Rule 501(a) under the Securities Act.  The undersigned
              agrees to furnish any additional information requested to assure
              compliance with applicable federal and state securities laws in
              connection with the purchase and sale of the Shares.  The
              undersigned acknowledges that the undersigned has completed
              Part I, the Subscriber Information questionnaire, and Part II, the
              Accreditation Criteria questionnaire, previously provided to the
              undersigned and that the information contained therein is complete
              and accurate as of the date thereof and is hereby affirmed as of
              the date hereof.

                     (iv)   The information presented and statements made by the
              undersigned in the questionnaire referred to in Section 6(c)(iii)
              completed and delivered by the undersigned and returned to the
              Company with this Agreement, and any additional information
              supplied by the undersigned at the Company's request relating to
              the undersigned's income, net worth, investment experience or
              other matters, are complete and accurate as of this date and may
              be relied upon by the Company in determining whether to accept
              this offer.

                     (v)    The undersigned's commitment to investments that are
              not readily marketable is not disproportionate to the
              undersigned's net worth, and an investment in the Shares will not
              cause such commitment to become excessive.  The undersigned has
              adequate means of providing for the undersigned's current needs
              and contingencies and has no need for liquidity with respect to
              the undersigned's investment in the Shares, and can withstand a
              complete loss of such investment in the Shares.

              (d)    RESTRICTIONS ON TRANSFER OR SALE OF SHARES:

                     (i)    The undersigned is acquiring the Shares for the
              undersigned's own account for investment purposes and not with a
              view to or for resale in connection with any distribution thereof.
              The undersigned understands that the Shares have not been
              registered under the Securities Act, or any State Securities Laws,
              in reliance on exemptions from registration which depend, in part,
              on the undersigned's investment intention; and, accordingly, the
              truth and accuracy of the foregoing representation will be relied
              upon by the Company to establish such exemptions.  The undersigned
              acknowledges that the Company is not required to recognize any
              transfer of the Shares unless, in the opinion of counsel to the
              Company, such transfer would not result in a violation of any
              federal or state law regarding the offer and sale of securities


                                      6

<PAGE>

              and unless the other restrictions on transfer set forth in the
              Shares are complied with.

                     (ii)   The undersigned understands that the Shares are
              "restricted securities" under applicable federal securities laws
              and that the Securities Act and the rules of the SEC provide in
              substance that the undersigned may dispose of the Shares only
              pursuant to an effective registration statement under the
              Securities Act or an exemption therefrom, and the undersigned
              understands that the Company has no obligation or intention to
              register any of the Shares (except for the registration rights
              referred to in Section 18 hereof), or to take action so as to
              permit sales pursuant to the Securities Act (including Rule 144
              thereunder).  Accordingly, the undersigned understands that, under
              the SEC's rules and until the Shares are registered for sale under
              the Securities Act, the undersigned may dispose of the Shares
              principally only in "private placements" which are exempt from
              registration under the Securities Act, in which event the
              transferee will acquire "restricted securities" subject to the
              same limitations as in the hands of the undersigned.  As a
              consequence, the undersigned understands that the undersigned must
              bear the economic risks of the investment in the Shares for an
              indefinite period of time.

                     (iii)  The undersigned agrees:  (A) that the undersigned
              will not sell, assign, pledge, give, transfer or otherwise dispose
              of the Shares or any interest therein, or make any offer or
              attempt to do any of the foregoing, except pursuant to a
              registration of the Shares, as applicable, under the Securities
              Act and all applicable State Securities Laws or in a transaction
              which is exempt from the registration provisions of the Securities
              Act and all applicable State Securities Laws; (B) that the
              certificate(s) for the Shares will bear a legend making reference
              to the foregoing restrictions; and (C) that the Company and any
              transfer agent for the Shares shall not be required to give effect
              to any purported transfer of such Shares except upon compliance
              with the foregoing restrictions.

                     (iv)   The undersigned has not offered or sold any portion
              of the undersigned's Shares.

                     (v)    The undersigned acknowledges that the Company has
              the right in its sole and absolute discretion to abandon this
              private placement at any time prior to the completion of the
              offering and to return the previously paid subscription price of
              the Shares, without interest thereon, to the undersigned.

                     (vi)   The undersigned has not used any person as a
              "Purchaser Representative" within the meaning of SEC Regulation D
              to represent it in determining whether it should purchase the
              Shares.


                                       7

<PAGE>

       7.     CONDITIONS TO CLOSING.

              (a)    CONDITIONS TO OBLIGATIONS OF THE UNDERSIGNED.  The
       undersigned's obligation to purchase the Shares at the Closing is subject
       to the fulfillment, at or prior to the Closing, of all of the following
       conditions, any of which may be waived by the undersigned:

                     (i)    The representations and warranties made by the
              Company in Section 5 hereof shall be true and correct in all
              respects on the date of the Closing with the same force and effect
              as if they had been made on and as of said date; and the Company
              shall have performed and complied with all obligations, agreements
              and conditions herein required to be performed by it on or prior
              to the Closing.

                     (ii)   All corporate and other proceedings in connection
              with the transactions contemplated at the Closing hereby and all
              documents and instruments incident to such transactions shall be
              reasonably satisfactory in substance and form to the undersigned,
              and the undersigned shall have received all such counterpart
              originals or certified or other copies of such documents as it may
              reasonably request.

                     (iii)  All authorizations, approvals, or permits, if any,
              of any governmental authority or regulatory body of the United
              States or of any state that are required in connection with the
              lawful sale and issuance of the Shares pursuant to this Agreement
              shall have been duly obtained and shall be effective on and as of
              the Closing, except for notices required or permitted to be filed
              with certain state and federal securities commissions after the
              Closing, which notices will be filed on a timely basis, and except
              for filings and other actions required to be taken pursuant to the
              Registration Rights Agreement after the date hereof.  At the time
              of the Closing, the sale and issuance of the Shares shall be
              legally permitted by all laws and regulations to which the
              undersigned and the Company are subject.

                     (iv)   No stop order or other order enjoining the sale of
              the Shares shall have been issued and no proceedings for such
              purpose shall be pending or, to the knowledge of the Company,
              threatened by the SEC or any commissioner of corporations or
              similar officer of any other state having jurisdiction over this
              transaction.

                     (v)    The Company shall have delivered to the undersigned
              a Certificate, executed by the President of the Company, dated the
              Closing Date, certifying to (i) the fulfillment of the conditions
              specified in subparagraphs (i) and (iv) of this Section 8 and (ii)
              the incumbency of the officers of the 


                                       8

<PAGE>

              Company executing this Agreement and the other instruments 
              delivered by the Company upon the Closing.

              (b)    CONDITIONS TO OBLIGATIONS OF THE COMPANY.  In addition to,
       and not in limitation of, the Company's rights set forth in Section 2
       hereof, the Company's obligation to issue and sell the Shares at the
       Closing is subject to the fulfillment, on or prior to the Closing, of the
       following conditions, any of which may be waived by the Company:

                     (i)    The representations and warranties made by the
              undersigned in Section 6 hereof shall be true and correct in all
              respects on the date of the Closing with the same force and effect
              as if they had been made on and as of said date, and the
              undersigned shall have performed and complied with all
              obligations, agreements and conditions herein required to be
              performed by the undersigned on or before the Closing.

                     (ii)   All authorizations, approvals, or permits, if any,
              of any governmental authority or regulatory body of the United
              States or of any state that are required in connection with the
              lawful sale and issuance of the Shares pursuant to this Agreement
              shall have been duly obtained and shall be effective on and as of
              the Closing.  No stop order or other order enjoining the sale of
              the Shares shall have been issued and no proceedings for such
              purpose shall be pending or, to the knowledge of the Company,
              threatened by the SEC or any commissioner of corporations or
              similar officer of any state having jurisdiction over this
              transaction.  At the time of the Closing, the sale and issuance of
              the Shares shall be legally permitted by all laws and regulations
              to which the undersigned and the Company are subject.

       8.     LEGEND.  Each certificate for Shares will be imprinted with a
legend in substantially the following form:

       "THE SECURITIES REPRESENTED BY THIS INSTRUMENT HAVE NOT BEEN REGISTERED
       UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR
       ANY STATE SECURITIES LAWS, AND MAY NOT BE SOLD OR TRANSFERRED OR OFFERED
       FOR SALE OR TRANSFER UNLESS A REGISTRATION STATEMENT UNDER THE SECURITIES
       ACT AND OTHER APPLICABLE SECURITIES LAWS WITH RESPECT TO SUCH SECURITIES
       IS THEN IN EFFECT, OR, IN THE OPINION OF COUNSEL, SUCH REGISTRATION UNDER
       THE SECURITIES ACT AND OTHER APPLICABLE SECURITIES LAWS IS NOT REQUIRED."

       9.     BROKERS.  The undersigned has not entered into any agreement to
pay any broker's or finder's fee to any person with respect to this Agreement or
the transactions contemplated hereby.


                                      9

<PAGE>

       10.    FILING OF REPORTS.  The Company will, so long as it has securities
registered pursuant to Section 12 of the 1934 Act or has securities registered
pursuant to the Securities Act, make timely filing of such reports as are
required to be filed by it with the SEC so that Rule 144 under the Securities
Act or any successor provision thereto will be available to the security holders
of the Company who are otherwise able to take advantage of the provisions of
such Rule.

       11.    WAIVER, AMENDMENT.  Neither this Agreement nor any provisions
hereof shall be modified, changed, discharged or terminated except by an
instrument in writing, signed by the party against whom any waiver, change,
discharge or termination is sought, and any waiver, change, discharge or
termination shall be effective only to the extent specifically set forth in such
writing.

       12.    ASSIGNABILITY.  Neither this Agreement nor any right, remedy,
obligation or liability arising hereunder or by reason hereof shall be
assignable by either the Company or the undersigned without the prior written
consent of the other party.

       13.    APPLICABLE LAW.  This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware.

       14.    SECTION AND OTHER HEADINGS.  The section and other headings
contained in this Agreement are for reference purposes only and shall not affect
the meaning or interpretation of this Agreement.

       15.    COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which when so executed and delivered shall be deemed to be
an original and all of which together shall be deemed to be one and the same
agreement.

       16.    NOTICES.  All notices and other communications provided for herein
shall be in writing and shall be deemed to have been duly given if delivered
personally or sent by registered or certified mail, return receipt requested,
postage prepaid:

              (a)    If to the Company, to it at the following address:

                        GalaGen Inc.
                        1275 Red Fox Road
                        Arden Hills, Minnesota 55112-6943
                        Attn:  Chief Executive Officer

              (b)    If to the undersigned, the address set forth on the
       signature page hereto;

or at such other address as either party shall have specified by notice in
writing to the other.


                                      10

<PAGE>

       17.    BINDING EFFECT.  The provisions of this Agreement shall be binding
upon and accrue to the benefit of the parties hereto and their respective heirs,
legal representatives, successors and assigns.

       18.    REGISTRATION RIGHTS.  The Company and the undersigned agree that
the undersigned shall have the benefit of the registration rights as set forth
in the Registration Rights Agreement of even date herewith, in the form attached
as Appendix A hereto (the "Registration Rights Agreement"), with respect to the
Shares.

       19.    SURVIVAL.  All representations, warranties and covenants contained
in this Agreement shall survive (i) the acceptance of the subscription by the
Company and (ii) if the undersigned is an individual, the death or disability of
the undersigned.

       20.    NOTIFICATION OF CHANGES.  The undersigned hereby covenants and
agrees to notify the Company upon the occurrence of any event prior to the
Closing of the purchase of the Shares pursuant to this Agreement which would
cause any representation, warranty, or covenant of the undersigned contained in
this Agreement to be false or incorrect.

       21.    ENTIRE AGREEMENT.  This Agreement, the Appendices hereto, and the
other documents delivered pursuant hereto constitute the full and entire
understanding and agreement among the parties with regard to the subjects hereof
and no party shall be liable or bound to any other party in any manner by any
representations, warranties, covenants, or agreements except as specifically set
forth herein or therein.  Nothing in this Agreement, express or implied, is
intended to confer upon any party, other than the parties hereto and their
respective successors and assigns, any rights, remedies, obligations, or
liabilities under or by reason of this Agreement, except as expressly provided
herein.

       22.    SEPARABILITY.  In case any provision of this Agreement shall be
invalid, illegal, or unenforceable, it shall to the extent practicable be
modified so as to make it valid, legal and enforceable and to retain as nearly
as practicable the intent of the parties, and the validity, legality, and
enforceability of the remaining provisions shall not in any way be affected or
impaired thereby.

       23.    DELAYS OR OMISSIONS.  No delay or omission to exercise any right,
power, or remedy accruing to either party or its respective successors and
assigns upon any breach, default or noncompliance of the other party hereto
under this Agreement shall impair any such right, power, or remedy, nor shall it
be construed to be a waiver of any such breach, default or noncompliance, or any
acquiescence therein, or of any similar breach, default or noncompliance
thereafter occurring.  It is further agreed that all remedies, either under this
Agreement, by law, or otherwise afforded to either party shall be cumulative and
not alternative.


                                      11

<PAGE>

       24.    PREVAILING PARTY.  If legal action is brought by, or on behalf of,
either party to enforce or interpret this Agreement, the prevailing party shall
be entitled to recover its attorneys' fees and legal costs in connection
therewith.


                                      12

<PAGE>

       IN WITNESS WHEREOF, the undersigned has executed this Subscription
Agreement and Investment Letter this ____ day of ________________, 1999.




                                 -------------------------------------
                                 Signature


                                 -------------------------------------
                                 Print Name


                                 -------------------------------------
                                 Number and Street


                                 -------------------------------------
                                 City, State and Zip


                                 -------------------------------------
                                 Subscriber's Social Security
                                 or Tax Identification Number


                                 -------------------------------------
                                 Signature of Co-owner if applicable



If Joint Ownership, check one (all parties must sign above):

( )    Joint Tenants with          ( )    Tenants in Common
       Right of Survivorship

( )    Community Property

If Fiduciary, Corporation or Partnership, check one:

( )    Trust         ( ) Estate           ( )    Power of Attorney

( )    Corporation   ( ) Partnership


                                      13

<PAGE>

Accepted as of __________,1999


GALAGEN INC.


By: 
    ----------------------------------------
   Name:      
        ------------------------------------
   Title:     
         -----------------------------------


                                      14

   
    




© 2022 IncJournal is not affiliated with or endorsed by the U.S. Securities and Exchange Commission