WARBURG PINCUS VENTURES LP
SC 13D, 1997-12-31
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<PAGE>


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                  SCHEDULE 13D

                    Under the Securities Exchange Act of 1934



                            HealthCare Capital Corp.
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                        Common Shares, without par value
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                    42220A103
- --------------------------------------------------------------------------------
                      (CUSIP Number of Class of Securities)


                               Patrick T. Hackett
                         E.M. Warburg Pincus & Co., LLC
                              466 Lexington Avenue
                            New York, New York 10017
                                 (212) 878-0600
- --------------------------------------------------------------------------------
                  (Name, Address and Telephone Number of Person
                Authorized to Receive Notices and Communications)

                                   Copies to:

                                Steven J. Gartner
                            Willkie Farr & Gallagher
                              153 East 53rd Street
                               New York, NY 10022
                                 (212) 821-8000

                                December 24, 1997
- --------------------------------------------------------------------------------
                          (Date of Event which Requires
                            Filing of this Schedule)

            If the  filing  person has  previously  filed a  statement  on
   Schedule  13G to report the  acquisition  which is the  subject of this
   Schedule 13D, and is filing this schedule  because of Rule  13d-1(b)(3)
   or (4), check the following:                                             |_|




                                       1
<PAGE>







                                  SCHEDULE 13D



- ------------------------------                   -------------------------
CUSIP No. 42220A103
- ------------------------------                   -------------------------


- ---- ---------------------------------------------------------------------------
 1   NAME OF REPORT PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

     Warburg, Pincus Ventures, L.P.                             I.D. #13-3784037
     
- ---- ---------------------------------------------------------------------------
 2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                   (a)[ ]
                                                                        (b)[X]

- ---- ---------------------------------------------------------------------------
 3   SEC USE ONLY

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

 4   SOURCE OF FUNDS*

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

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

     Delaware
- -------------- --------- -------------------------------------------------------
                  7      SOLE VOTING POWER

                         0
               --------- -------------------------------------------------------
  NUMBER OF       8      SHARED VOTING POWER
   SHARES
BENEFICIALLY             23,333,333
  OWNED BY
    EACH       --------- -------------------------------------------------------
  REPORTING        9      SOLE DISPOSITIVE POWER
 PERSON WITH
                          0
               --------- -------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

                         23,333,333

- ---- ---------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON

     23,333,333
- ---- ---------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*

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

     46.1%
- ---- ---------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON*

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


                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.



                                       2
<PAGE>




                                  SCHEDULE 13D



- ----------------------------------                   ---------------------------
CUSIP No. 42220A103
- ----------------------------------                   ---------------------------


- ---- ---------------------------------------------------------------------------
 1   NAME OF REPORT PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

     Warburg, Pincus & Co.                                    I.D. #13-6358475
     
- ---- ---------------------------------------------------------------------------
 2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                 (a) [ ]
                                                                      (b) [X]

- ---- ---------------------------------------------------------------------------
 3   SEC USE ONLY

- ---- ---------------------------------------------------------------------------
 4   SOURCE OF FUNDS*

     N/A
- ---- ---------------------------------------------------------------------------
 5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO
     ITEMS 2(d) or 2(e)                                                    [ ]

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

     New York
- ----- -------- --------- -------------------------------------------------------
                  7      SOLE VOTING POWER

                         0
               --------- -------------------------------------------------------
NUMBER OF         8      SHARED VOTING POWER
 SHARES 
BENEFICIALLY             23,333,333
 OWNED BY
   EACH        --------- -------------------------------------------------------
REPORTING
PERSON WITH       9      SOLE DISPOSITIVE POWER

                         0
               --------- -------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

                         23,333,333
- ---- ---------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON

     23,333,333
- ---- ---------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ]

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

     46.1%
- ---- ---------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON*

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


                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.



                                       3
<PAGE>



                                  SCHEDULE 13D



- ----------------------------------------             ---------------------------
CUSIP No. 42220A103
- ----------------------------------------             ---------------------------


- ---- ---------------------------------------------------------------------------
 1   NAME OF REPORT PERSON
     S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

     E.M. Warburg, Pincus & Co., LLC                      I.D. #13-3536050
     
- ---- ---------------------------------------------------------------------------
 2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP                  (a) [ ]
                                                                       (b) [X]

- ---- ---------------------------------------------------------------------------
 3   SEC USE ONLY

- ---- ---------------------------------------------------------------------------
 4   SOURCE OF FUNDS*

     N/A
- ---- ---------------------------------------------------------------------------
 5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO
     ITEMS 2(d) or 2(e)                                                    [ ]

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

     New York
- ---- --------- --------- -------------------------------------------------------
                  7      SOLE VOTING POWER

                         0
               --------- -------------------------------------------------------
NUMBER OF         8      SHARED VOTING POWER
  SHARES 
BENEFICIALLY             23,333,333
 OWNED BY
  EACH         --------- -------------------------------------------------------
REPORTING
PERSON WITH       9      SOLE DISPOSITIVE POWER

                         0
               --------- -------------------------------------------------------
                  10     SHARED DISPOSITIVE POWER

                         23,333,333
- ---- ---------------------------------------------------------------------------
11   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON

     23,333,333
- ---- ---------------------------------------------------------------------------
12   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES* [ ]

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

     46.1%
- ---- ---------------------------------------------------------------------------
14   TYPE OF REPORTING PERSON*

     OO
- ---- ---------------------------------------------------------------------------


                      *SEE INSTRUCTIONS BEFORE FILLING OUT!
          INCLUDE BOTH SIDES OF THE COVER PAGE, RESPONSES TO ITEMS 1-7
      (INCLUDING EXHIBITS) OF THE SCHEDULE, AND THE SIGNATURE ATTESTATION.



                                       4
<PAGE>





          This Schedule 13D is being filed on behalf of Warburg, Pincus
Ventures, L.P., a Delaware limited partnership ("Ventures"), Warburg, Pincus &
Co., a New York general partnership ("WP") and E.M. Warburg, Pincus & Co., LLC,
a New York limited liability company ("EMW") relating to the common shares,
without par value (the "Common Stock"), of HealthCare Capital Corp., an Alberta,
Canada corporation (the "Company").

          Of the Reporting Entities (as defined below), only Ventures has
acquired indirect ownership of the Common Stock through its ownership of Series
A Convertible Preferred Shares (the "Series A Preferred Stock") and warrants to
purchase Common Stock (the "Warrants," and, collectively with the Series A
Preferred Stock, the "Securities").

Item 1. Security and Issuer.

          This statement on Schedule 13D relates to the Common Stock of the
Company and is being filed pursuant to Rule 13d-1 under the Securities Exchange
Act of 1934 (the "Exchange Act"). The principal executive offices of the Company
are located at 111 S.W. Fifth Avenue, Suite 2390, Portland, Oregon 97204.

Item 2.  Identity and Background.

          (a) This statement is filed by Ventures, WP, and EMW (collectively,
the "Reporting Entities"). The sole general partner of Ventures is WP. EMW
manages Ventures. The members of EMW are substantially the same as the partners
of WP. Lionel I. Pincus is the managing partner of WP and the managing member of


                                       5
<PAGE>



EMW and may be deemed to control both WP and EMW. WP has a 15% interest in the
profits of Ventures as the general partner, and also owns approximately 1.2% of
the limited partnership interests in Ventures. The general partners of WP and
the members of EMW are described in Schedule I hereto.

          (b) The address of the principal business and principal office of each
of the Reporting Entities is 466 Lexington Avenue, New York, New York 10017.

          (c) The principal business of Ventures is that of a partnership
engaged in making venture capital and related investments. The principal
business of WP is acting as general partner of Ventures, Warburg, Pincus
Investors, L.P. and Warburg, Pincus Capital Company, L.P. The principal business
of EMW is acting as manager of Ventures, Warburg, Pincus Investors, L.P. and
Warburg, Pincus Capital Company, L.P.

          (d) None of the Reporting Entities, nor, to the best of their
knowledge, any of the directors, executive officers, general partners or members
referred to in paragraph (a) has, during the last five years, been convicted in
a criminal proceeding (excluding traffic violations or similar misdemeanors).

          (e) None of the Reporting Entities nor, to the best of their
knowledge, any of the directors, executive officers, general partners or members
referred to in paragraph (a) above has, during the last five years, been a party
to a civil proceeding of a judicial or administrative body of competent
jurisdiction and as a


                                       6
<PAGE>


result of such proceeding was or is subject to a judgment, decree or final order
enjoining future violations of, or prohibiting or mandating activities subject
to, federal or state securities laws or finding any violation with respect to
such laws.

          (f) Except as otherwise indicated on Schedule I hereto, each of the
individuals referred to in paragraph (a) above is a United States citizen.

Item 3.  Source and Amount of Funds or Other Consideration.

          The total amount of funds required by Ventures to purchase the
Securities pursuant to the Securities Purchase Agreement dated November 21, 1997
(the "Purchase Agreement") described in Item 4 was $18,000,000, and was
furnished from the working capital of Ventures. 

Item 4. Purpose of Transaction.

          On November 21, 1997, the Company entered into a Purchase Agreement
with Ventures pursuant to which Ventures agreed to purchase, subject to certain
conditions, 13,333,333 shares of Series A Preferred Stock and Warrants to
purchase 10,000,000 shares of Common Stock for an aggregate purchase price of
$18,000,000 (the "Purchase"). Pursuant to the Purchase Agreement, the Company
agreed to issue the Securities to Ventures in consideration of the purchase
price and certain rights under the Purchase Agreement, as described below.

          On December 24, 1997, Ventures purchased 13,333,333 shares of Series A
Preferred Stock of the Company and Warrants to purchase



                                       7
<PAGE>


10,000,000 shares of Common Stock of the Company for an aggregate purchase price
of $18,000,000. The Securities represent beneficial ownership of 23,333,333
shares of Common Stock of the Company, or approximately 46.1% of the outstanding
voting securities of the Company as determined in accordance with Rule
13d-3(d)(1)(i) of the Exchange Act.

          The Series A Preferred Stock is initially convertible on a share for
share basis into Common Stock at an initial conversion price of $1.35 per share
of Common Stock, subject to antidilution provisions which provide for an
adjustment of the conversion price and the number of shares of Common Stock
obtainable upon conversion in the event the Company sells or issues Common Stock
or takes certain other actions deemed to be an issuance or sale of Common Stock.
The Series A Preferred Stock has the right to vote with the Common Stock on an
as converted basis with respect to any and all matters presented to the
shareholders of the Company for their action or consideration. The holders of
Series A Preferred Stock are entitled to receive, if, when and as declared out
of assets legally available therefor, cumulative dividends at the rate of
$0.0675 per share per annum (subject to adjustment), payable in cash or, at the
discretion of the Board of Directors of the Company (the "Board"), in shares of
Common Stock, before any dividends are set apart for or paid upon the Common
Stock or any other stock ranking on liquidation subordinate to or on a parity
with the shares of Series A Preferred Stock in any year.



                                       8
<PAGE>


Dividends will be cumulative from the date of initial issuance of the shares of
Series A Preferred Stock.

          The Warrants are exercisable for shares of Common Stock at any time at
the option of Ventures at an exercise price of $2.40 per share of Common Stock.
The Warrants are subject to antidilution provisions which provide for an
adjustment of the exercise price and the number of shares of Common Stock
obtainable upon exercise of the Warrants in the event that the Company sells or
issues Common Stock or takes certain other actions deemed to be an issuance or
sale of Common Stock. The Warrants do not have any voting rights.

          Board Representation. Pursuant to the Purchase Agreement, for so long
as Ventures owns Common Stock or Series A Preferred Stock constituting at least
10% of the outstanding Common Stock of the Company (which for this purpose shall
include the Common Stock issuable upon the conversion of the Series A Preferred
Stock but not the Common Stock issuable upon the exercise of the Warrants), the
Company will nominate and use its reasonable best efforts to elect and to cause
to remain as directors on the Company's Board two individuals designated by
Ventures, such number to increase to three if and for as long as the number of
directors that constitute the entire Board shall be in excess of eight. The
Company shall use its reasonable best efforts to fix and maintain the number of
directors that shall constitute the entire Board to be not more than eleven so
long as Ventures owns



                                       9
<PAGE>



at least 3,333,333 shares of Common Stock or Series A Preferred Stock.

          Such number of directors to be designated by Ventures shall be
decreased by one if Ventures owns less than 10% of the outstanding Common Stock
(which for this purpose shall include the Common Stock issuable upon the
conversion of the Series A Preferred Stock but not the Common Stock issuable
upon the exercise of the Warrants), and decreased to none if Ventures owns less
than 3,333,333 shares of Common Stock or Series A Preferred Stock.

          Any vacancy created by the death, disability, retirement or removal of
any such individual may be filled by Ventures.

          Registration Rights. The shares of Series A Preferred Stock and the
Warrants will not be registered under the Securities Act of 1933, as amended
(the "Securities Act"). Pursuant to the Purchase Agreement, the Company has
granted Ventures Demand and Piggyback Registration Rights, as defined below,
with respect to the shares of Common Stock issuable upon conversion of the
Series A Preferred Stock and upon exercise of the Warrants. The Company has
agreed to use its best efforts to effect any registration requested by Ventures
(the "Demand Registration Rights") at any time subsequent to 180 days from the
date of the closing of the purchase and sale of the securities under the
Purchase Agreement (the "Closing"). The Company will only be obligated to file
one such registration statement in respect of the shares of Common



                                       10
<PAGE>


Stock issuable upon conversion of the Series A Preferred Stock and one such
registration statement in respect of the shares of Common Stock issuable upon
exercise of the Warrants, provided that any such registration statement shall
have been declared or ordered effective and the sales of such Common Stock shall
have been closed. However, if the sales of such Common Stock have not closed,
Ventures may preserve its one Demand Registration Right in either case by paying
all of the Company's registration expenses associated with the registration of
such Common Stock; provided that such right may not be exercised until 90 days
after the effective date of such registration statement.

          In addition, if at any time subsequent to 180 days from the Closing,
the Company proposes to register any of its equity securities under the
Securities Act for its own account or the account of any of its shareholders,
Ventures will have the right (the "Piggyback Registration Right") upon a timely
request to have its shares included in such registration. If shares to be
registered are to be distributed by means of an underwriting, the underwriter
may limit the number of shares to be registered if in its judgment marketing
factors require such a cutback.

          All expenses of registration must be borne by the Company, but all
brokerage fees, underwriting discounts, and selling commissions must be borne by
Ventures. In connection with a registration, the Company has agreed to indemnify
Ventures and each person, if any, who controls Ventures for certain losses


                                       11
<PAGE>


arising out of the registration including losses arising out of or based upon
any untrue statement of or omission of material fact in the registration
statement, or arising out of any violation by the Company of any rule or
regulation promulgated under the Securities Act, the Exchange Act or any other
federal or state law. Ventures has agreed to indemnify and hold harmless the
Company and any person who signs the registration statement for losses which
arise out of or are based upon any untrue statement of or omission of material
fact in the registration statement which was made in reliance upon written
statements from Ventures. The Demand and Piggyback Registration Rights may be
assigned subject to certain limitations. The Company agreed to use its best
efforts to comply with the reporting and information requirements under Rule 144
which are necessary for Ventures to sell its shares to the public without
registration.

          The foregoing description of the Purchase Agreement and the terms of
the Series A Preferred Stock and the Warrants is qualified in its entirety by
reference to the Purchase Agreement, which is attached hereto as Exhibit 1 and
is incorporated herein by reference.

          The purchase was effected because of the Reporting Entities' belief
that the Company represents an attractive investment. As contemplated by the
terms of the Purchase Agreement, Joel Ackerman, who is affiliated with WP and
EMW, was elected to the Board as of December 24, 1997. Mr. Ackerman disclaims
beneficial



                                       12
<PAGE>



ownership (within the meaning of Rule 13d-3 under the Exchange Act) of the
Common Stock beneficially owned by Ventures. Pursuant to the terms of the
Purchase Agreement, another Board nominee is expected to be designated by
Ventures in the near future. The Reporting Entities presently expect to limit
their involvement in the management of the Company to representation on the
Board.

          The Reporting Entities may from time to time acquire shares of Common
Stock or dispose of shares of Common Stock through open market or privately
negotiated transactions or otherwise, depending on existing market conditions
and other considerations discussed below. The Reporting Entities intend to
review their investment in the Company on a continuing basis and, depending upon
the price and availability of shares of Common Stock, subsequent developments
affecting the Company, the Company's business and prospects, other investment
and business opportunities available to the Reporting Entities, general stock
market and economic conditions, tax considerations and other factors considered
relevant, may decide at any time not to increase, or to decrease, the size of
their investment in the Company.

          Except as set forth herein, none of the Reporting Entities nor, to the
best of their knowledge, any person listed in Schedule I hereto, has any plans
or proposals which relate to or would result in: (a) the acquisition by any
person of additional securities of the Company, or the disposition of securities
of the


                                       13
<PAGE>


Company; (b) an extraordinary corporate transaction, such as a merger,
reorganization or liquidation, involving the Company or any of its subsidiaries;
(c) a sale or transfer of a material amount of assets of the Company or any of
its subsidiaries; (d) any change in the present Board or management of the
Company, including any plans or proposals to change the number or term of
directors or to fill any existing vacancies on the board; (e) any material
change in the present capitalization or dividend policy of the Company; (f) any
other material change in the Company's business or corporate structure; (g)
changes in the Company's charter, By-Laws or instruments corresponding thereto
or other actions which may impede the acquisition of control of the Company by
any person; (h) causing a class of securities of the Company to be delisted from
a national securities exchange or to cease to be authorized to be quoted in an
inter-dealer quotation system of a registered national securities association;
(i) a class of equity securities of the Company becoming eligible for
termination of registration pursuant to Section 12(g)(4) of the Exchange Act; or
(j) any action similar to any of those enumerated above.

Item 5.  Interest in Securities of the Issuer.

          (a) Upon the Closing, Ventures will beneficially own 13,333,333 shares
of Series A Preferred Stock and Warrants to purchase up to an aggregate of
10,000,000 shares of Common Stock. By reason of their respective relationships
with Ventures, each of the Reporting Entities may be deemed under Rule 13d-3
under the


                                       14
<PAGE>



Exchange Act to own beneficially all of the Securities which Ventures
beneficially owns. As of November 21, 1997, 23,333,333 shares of Common Stock
represented approximately 46.1% of the outstanding shares of Common Stock, based
on the Company's representation in the Purchase Agreement that 27,284,517 shares
of Common Stock (exclusive of the Common Stock into which the Securities may be
converted or exercised) were outstanding as of that date.

          (b) The Reporting Entities together share the power to vote or to
direct the vote, and to dispose or to direct the disposition, of the Securities
held by Ventures and of the Common Stock which Ventures may acquire upon
conversion or exercise of the Securities.

          (c) Except for the Purchase, none of the Reporting Entities nor, to
the best of their knowledge, any person listed in Schedule I hereto, has
effected any transactions in the Common Stock during the preceding 60 days.

          (d) Except as set forth in this Item 5, no person other than each
respective record owner referred to herein of securities is known to have the
right to receive or the power to direct the receipt of dividends from, or the
proceeds from the sale of, such securities.

          (e) Not applicable.

Item 6.  Contracts, Arrangements, Understandings or
         Relationships With Respect to Securities of the Issuer.



                                       15
<PAGE>


          Pursuant to Rule 13d-1(f) promulgated under the Exchange Act, the
Reporting Persons have entered into an agreement with respect to the joint
filing of this statement, and any amendment or amendments hereto, which is being
filed as Exhibit 2 to this Schedule 13D and is incorporated herein by reference.

          As described in Item 4, Ventures and the Company have agreed, pursuant
to the Purchase Agreement, to certain terms with respect to registration of the
shares of Common Stock and the composition of the Company's Board. The
information set forth in Item 4 above is incorporated herein by reference.

          Except as described herein and by reference to Item 4 above, there are
no contracts, arrangements, understandings or relationships among the persons
named in Item 2 or between such persons and any other person with respect to any
securities of the Company.

          By virtue of the relationships among the Reporting Entities as
described in Item 2, the Reporting Entities may be deemed to be a "group" under
the Federal securities laws. Lionel I. Pincus disclaims any beneficial ownership
of the Securities and the shares of Common Stock which may be acquired upon
conversion or exercise of the Securities reported herein as being beneficially
owned by the Reporting Entities.


                                       16
<PAGE>




Item 7.  Material to be Filed as Exhibits.

          1. Securities Purchase Agreement, dated as of November 21, 1997, by
and between the Company and Ventures.

          2. Joint Filing Agreement, dated as of December 30, 1997, by and among
the Reporting Entities.



                                       17
<PAGE>





                                   SIGNATURES


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



Dated: December 31, 1997            WARBURG, PINCUS VENTURES, L.P.

                                    By: Warburg, Pincus & Co.,
                                        General Partner



                                    By: /s/Stephen Distler
                                        Stephen Distler, Partner



                                    WARBURG, PINCUS & CO.



                                    By: /s/Stephen Distler
                                         Stephen Distler, Partner



                                    E.M. WARBURG, PINCUS & CO., LLC



                                    By: /s/Stephen Distler
                                         Stephen Distler, Member




                                       18
<PAGE>






                                                               SCHEDULE I


          Set forth below is the name, position and present principal occupation
of each of the general partners of Warburg, Pincus & Co. ("WP") and each of the
members of E.M. Warburg, Pincus & Co., LLC ("EMW"). The sole general partner of
Warburg, Pincus Ventures, L.P. ("Ventures") is WP. WP, EMW and Ventures are
hereinafter collectively referred to as the "Reporting Entities." Except as
otherwise indicated, the business address of each of such persons is 466
Lexington Avenue, New York, New York 10017, and each of such persons is a
citizen of the United States.


                             General Partners of WP
                             ----------------------

                                    Present Principal Occupation
Name                                in Addition to Position with WP
- ----                                -------------------------------

Susan Black                         Managing Director and Member, EMW

Christopher W. Brody                Managing Director and Member, EMW

Harold Brown                        Senior Managing Director and  Member, EMW

Errol M. Cook                       Managing Director and Member, EMW

W. Bowman Cutler                    Managing Director and Member, EMW

Elizabeth B. Dater                  Managing Director and Member, EMW

Stephen Distler                     Managing Director, Member and Treasurer, EMW

Harold W. Ehrlich                   Managing Director and Member, EMW

Louis G. Elson                      Managing Director and Member, EMW

John L. Furth                       Vice Chairman of the Board and Member, EMW



                                       20
<PAGE>



Stewart K.P. Gross                  Managing Director and Member, EMW

Patrick T. Hackett                  Managing Director and Member, EMW

Jeffrey A. Harris                   Managing Director and Member, EMW

Robert S. Hillas                    Managing Director and Member, EMW

A. Michael Hoffman                  Managing Director and Member, EMW

William H. Janeway                  Managing Director and Member, EMW

Douglas M. Karp                     Managing Director and Member, EMW

Charles R. Kaye                     Managing Director and Member, EMW

Henry Kressel                       Managing Director and Member, EMW

Joseph P. Landy                     Managing Director and Member, EMW

Sidney Lapidus                      Managing Director and Member, EMW

Kewsong Lee                         Managing Director and Member, EMW

Reuben S. Leibowitz                 Managing Director and Member, EMW

Brady T. Lipp                       Managing Director and Member, EMW



                                       21
<PAGE>



Stephen J. Lurito                   Managing Director and Member, EMW

Spencer S. Marsh III                Managing Director and Member, EMW

Lynn C. Martin                      Managing Director and Member, EMW

Edward J. McKinley                  Managing Director and Member, EMW

Rodman W. Moorhead III              Senior Managing Director and Member, EMW

Howard H. Newman                    Managing Director and Member, EMW

Gary D. Nusbaum                     Managing Director and Member, EMW


Anthony G. Orphanos                 Managing Director and Member, EMW

Dalip Pathak                        Managing Director and Member, EMW

Daphne D. Philpson                  Managing Director and Member, EMW

Lionel I. Pincus                    Chairman of the Board, CEO, and Managing
                                    Member, EMW; and Managing Partner,
                                    Pincus & Co.

Eugene L. Podsiadlo                 Managing Director and Member, EMW

Ernest H. Pomerantz                 Managing Director and Member, EMW

Brian S. Posner                     Managing Director and Member, EMW

Arnold M. Reichman                  Managing Director and Member, EMW

Roger Reinlieb                      Managing Director and Member, EMW



                                       22
<PAGE>


John D. Santoleri                   Managing Director and Member, EMW

Sheila N. Scott                     Managing Director and Member, EMW

Peter Stalker III                   Managing Director and Member, EMW

David A. Tanner                     Managing Director and Member, EMW

James E. Thomas                     Managing Director and Member, EMW

John L. Vogelstein                  Vice Chairman of the Board and Member, EMW

Elizabeth H. Weatherman             Managing Director and Member, EMW

Joanne R. Wenig                     Managing Director and Member, EMW

George U. Wyper                     Managing Director and Member, EMW

Pincus & Co.*

NL & Co.**

* Pincus & Co. is a New York limited partnership whose primary activity is
ownership interest in WP and EMW.

** NL & Co. is a New York limited partnership whose primary activity is
ownership interest in WP.



                                       23
<PAGE>



                                 Members of EMW
                                 --------------

                                            Present Principal Occupation in 
Name                                        Addition to Position with EMW
- ----                                        --------------------------------
                                       

Susan Black                                 Partner, WP

Christopher W. Brody                        Partner, WP

Harold Brown                                Partner, WP

Dale C. Christensen (1)

Errol M. Cook                               Partner, WP

W. Bowman Cutter                            Partner, WP

Elizabeth B. Dater                          Partner, WP

Stephen Distler                             Partner, WP

P. Nicholas Edwards(2)

Harold W. Ehrlich                           Partner, WP

Louis G. Elson                              Partner, WP

John L. Furth                               Partner, WP

Stewart K.P. Gross                          Partner, WP

Patrick T. Hackett                          Partner, WP

Jeffrey A. Harris                           Partner, WP

Robert S. Hillas                            Partner, WP

A. Michael Hoffman                          Partner, WP

William H. Janeway                          Partner, WP

Douglas M. Karp                             Partner, WP


- -------------------
(1)      Citizen of Canada

(2)      Citizen of United Kingdom


                                       24
<PAGE>



Charles R. Kaye                             Partner, WP

Richard H. King (2)                         

Henry Kressel                               Partner, WP

Joseph P. Landy                             Partner, WP

Sidney Lapidus                              Partner, WP

Kewsong Lee                                 Partner, WP

Reuben S. Leibowitz                         Partner, WP

Brady T. Lipp                               Partner, WP

Stephen J. Lurito                           Partner, WP

Spencer S. Marsh III                        Partner, WP

Lynn C. Martin                              Partner, WP

Edward J. McKinley                          Partner, WP

Rodman W. Moorhead III                      Partner, WP

Howard H. Newman                            Partner, WP

Gary D. Nusbaum                             Partner, WP

Anthony G. Orphanos                         Partner, WP

Dalip Pathak                                Partner, WP

Philip C. Percival (2)

Daphne D. Philipson                         Partner, WP

Lionel I. Pincus                            Managing Partner, WP; and Managing
                                            Partner, Pincus & Co.

Eugene L. Podsiadlo                         Partner, WP

Ernest H. Pomerantz                         Partner, WP

Brian S. Posner                             Partner, WP

Arnold M. Reichman                          Partner, WP



                                       25
<PAGE>



Roger Reinlieb                              Partner, WP

John D. Santoleri                           Partner, WP

Sheila N. Scott                             Partner, WP

Dominic H. Shorthouse (2)

Peter Stalker III                           Partner, WP

Chang Q. Sun (3)

David A. Tanner                             Partner, WP

James E. Thomas                             Partner, WP

John L. Vogelstein                          Partner, WP

Elizabeth H. Weathermen                     Partner, WP

Joanne R. Wenig                             Partner, WP

George U. Wyper                             Partner, WP

Pincus & Co.*

* Pincus & Co. is a New York limited partnership whose primary activity is
ownership interest in WP and EMW.


- --------
(3)      Citizen of People's Republic of China


                                       26

<PAGE>
                                 EXECUTION COPY












                            HEALTHCARE CAPITAL CORP.


                          SECURITIES PURCHASE AGREEMENT


                13,333,333 Series A Convertible Preferred Shares

                  Warrants to Purchase 10,000,000 Common Shares





<PAGE>



                                Table of Contents

Section

1.       Sale and Purchase.

2.       Closing; Payment of Purchase Price.

3.       Representations and Warranties of the Company.
         (a)      Organization; Good Standing.
         (b)      Governmental Authority.
         (c)      Authorization of Agreements.
         (d)      Capitalization.
         (e)      Authorization of Convertible Shares and Warrants.
         (f)      Consents and Approvals.
         (g)      Noncontravention.
         (h)      Change in Ownership.
         (i)      Litigation.
         (j)      Reports and Financial Statements.
         (k)      Liabilities.
         (l)      Material Contracts.
         (m)      Employees.
         (n)      Employee Benefit Plans.
         (o)      Patents, Licenses, etc.
         (p)      Taxes.
         (q)      Properties.
         (r)      Condition of Properties.
         (s)      Insurance.
         (t)      No Adverse Change.
         (u)      Transactions with Related Parties.
         (v)      Interest in Competitors.
         (w)      Registration Rights.
         (x)      Private Offering.
         (y)      Brokerage.
         (z)      Illegal or Unauthorized Payments; Political Contributions.
         (aa)     Material Facts.
         (bb)     No Integrated Offering.

4. Covenants of the Company.
         (a)      [Conditions of The Alberta Stock Exchange].
         (b)      [No actions will contravene representations and warranties]
         (c)      [Right to appoint directors]
         (d)      Use of Proceeds.

                                      -ii-

<PAGE>



         (e)      Financial and Business Information.
                  (i)      Monthly and Quarterly Statements
                  (ii)     Annual Statements
                  (iii)    Business Plan; Projections
                  (iv)     Audit Reports
                  (v)      Other Reports
                  (vi)     Progress Report
                  (vii)    Requested Information
         (f)      Inspection.
         (g)      Takeover Statute.
         (h)      Conduct of Business and Maintenance of Existence.
         (i)      Compliance with Laws.
         (j)      Insurance.
         (k)      Keeping of Books.
         (l)      Lost, etc. Certificates Evidencing Securities 
                  (or Common Shares);
                  Exchange.
         (m)      Limitations on Corporate Actions.
         (n)      Commencement and Termination of Covenants
         (o)      Form D Filing.

5.       Representations, Warranties and Covenants of the Investor;
         Additional Covenants of the Company
         (a)      General.
         (b)      Disclosure and Non-Public Information.
         (c)      Securities Act Matters.
         (d)      Limitation on Transfer.
         (e)      No Intention of Board to Pay Dividends.
         (f)      Hart-Scott Act Compliance.
         (g)      Consents and Approvals.
         (h)      Acknowledgments Regarding the Advisors

6.       Conditions to Closing.
         (a)      [As to the Company:]
                  (i)      Representations and Warranties.
                  (ii)     Compliance with Agreement.
                  (iii)    No Legislation or Injunction.
                  (iv)     Adverse Developments
                  (v)      Consents and Approvals.
                  (vi)     Officers' Certificate.
                  (vii)    Opinions of Counsel.
                  (viii)   Secretary's Certificate.
                  (ix)     Approval of Proceedings.
                  (x)      Warrant Agreement.



                                      -iii-

<PAGE>



                  (xi)     Shareholders' Agreement.
                  (xii)    Recent Financial Statements.
                  (xiii)   Filing of Convertible Shares Certificate.
                  (xiv)    Conditional Approval of The Alberta Stock Exchange.
                  (xv)     Antitrust Approvals.
                  (xvi)    Directors.
                  (xvii)  Employment Agreements.
         (b)      [As to the Investor:]
                  (i)      Consents and Approvals.
                  (ii)     No Legislation or Injunction.
                  (iii)    General Partner's Certificate.
                  (iv)     Antitrust Approvals.
7.       Expenses of Sale.
8.       Registration Rights.
9.       Indemnification.
10.      Contribution.
11.      Notices.
12.      Parties.
13.      Termination and Survival.
14.      Amendment and Modification.
15.      Further Assurances
16.      Waiver of Breach
17.      Entire Agreement.
18.      Severability.
19.      Limitation on Enforcement of Remedies.
20.      Counterparts.
21.      Law.

Schedule 3(d)     Derivative Securities
Schedule 3(f)     Consents and Approvals
Schedule 3(l)     Key Agreements and Instruments
Schedule 3(m)(ii)          Employment Agreements
Schedule 3(n)     Employee Benefit Plans Under ERISA
Schedule 3(u)     Related Parties
Schedule 3(y)     Brokerage
Schedule 4(m)     Redemption Obligations Incurred in Connection
                           with the Acquisition of Hearing Clinics

Exhibit A         Form of Warrant Agreement
Exhibit B         Form of Shareholders' Agreement
Exhibit C         Form of Terms of Series A Convertible Preferred Shares
Exhibit D-1       Form of Opinion of Ballem MacInnes
Exhibit D-2       Form of Opinion of Carter, Ledyard & Milburn


                                      -iv-

<PAGE>



                            HEALTHCARE CAPITAL CORP.


                          SECURITIES PURCHASE AGREEMENT


                13,333,333 Series A Convertible Preferred Shares

                  Warrants to Purchase 10,000,000 Common Shares



         This Securities  Purchase  Agreement is made as of November 21, 1997 by
and between  HealthCare  Capital Corp., an Alberta  corporation (the "Company"),
and  Warburg  Pincus  Ventures,   L.P.,  a  Delaware  limited  partnership  (the
"Investor").

         WHEREAS, the Investor wishes to purchase and the Company wishes to sell
certain securities of the Company as set forth in this Agreement.

         NOW,  THEREFORE,  to effect such purchase and sale and in consideration
of the mutual covenants, representations,  warranties and agreements hereinafter
set forth and intending to be legally bound by this  Agreement,  the Company and
the Investor agree as follows:

         1.  Sale and  Purchase.  The  Company  agrees  to issue and sell to the
Investor and the Investor agrees to purchase from the Company  13,333,333 Series
A Convertible  Preferred  Shares (the  "Convertible  Shares") of the Company and
warrants (the  "Warrants") to purchase  10,000,000  common  shares,  without par
value, of the Company (the "Common Shares"),  for an aggregate purchase price of
U.S. $18,000,000 (the "Purchase Price") on the terms and conditions set forth in
this Agreement.  The Warrants shall be issued pursuant to the terms of a warrant
agreement  in the  form of  Exhibit  A hereto  (the  "Warrant  Agreement").  The
Convertible  Shares  and  the  Warrants  are  collectively  referred  to in this
Agreement as the  "Securities."  This  Agreement  and the Warrant  Agreement are
collectively referred to in this Agreement as the "Transaction Documents."

         2. Closing;  Payment of Purchase Price. The closing of the purchase and
sale of the Securities hereunder (the "Closing") shall occur on January 16, 1998
at the offices of Willkie Farr & Gallagher,  153 East 53rd Street, New York, New
York,  or such other date and  location as may be agreed upon by the Company and
the Investor;  provided,  however, the Closing shall not occur until the closing
conditions  set forth in Section 6 hereto have been  satisfied.  At the Closing:
(a) the  Investor  and  the  Company  shall  execute  and  deliver  the  Warrant
Agreement; (b) the Investor and the shareholders named therein shall execute and
deliver  a  shareholders'  agreement  in the  form  of  Exhibit  B  hereto  (the
"Shareholders'  Agreement");  and (c) the Investor shall pay to the Company U.S.
$18,000,000 in immediately available funds (to such account as the Company shall




                                      -1-
<PAGE>



designate,  not less than  three  business  days prior to the  Closing)  against
delivery to the Investor of a certificate for 13,333,333  Convertible Shares and
a certificate for Warrants to purchase 10,000,000 Common Shares. The date of the
Closing may be changed by mutual agreement of the Company and the Investor,  and
the date on which  the  Closing  actually  occurs is  referred  to herein as the
"Closing Date."

         3.   Representations  and  Warranties  of  the  Company.   The  Company
represents and warrants to the Investor as follows:

                  (a) Organization;  Good Standing. The Company is a corporation
         duly organized, validly existing and in good standing under the laws of
         Alberta, Canada with full power and authority,  corporate and other, to
         own or lease and operate its  properties and to conduct its business as
         currently  conducted.  Except as provided in Section 3(b),  the Company
         has  made  all  necessary  filings  under  all  applicable   corporate,
         securities  and any other  laws to which it is  subject,  except  where
         failure  to file  would  not  have a  material  adverse  effect  on the
         condition  (financial or otherwise),  results of operations,  business,
         assets,  or prospects of the Company and its  Subsidiaries  (as defined
         below) taken as a whole (a "Material Adverse  Effect").  The Company is
         the  direct  or  indirect  beneficial  owner of all of the  outstanding
         securities of the following  corporations  (each, a  "Subsidiary"  and,
         collectively, the "Subsidiaries"):

                  SONUS-Canada Ltd., a British Columbia, Canada,
         corporation; and

                  SONUS-USA, Inc., a Washington corporation.

         Each Subsidiary is a corporation  duly organized,  validly existing and
         in good standing under the laws of its  jurisdiction of  incorporation,
         with full power and authority, corporate and other, to own or lease and
         operate  its  properties  and to  conduct  its  business  as  currently
         conducted,   and  is  duly  qualified  to  do  business  as  a  foreign
         corporation  and is in good  standing in all  jurisdictions  where such
         qualification is necessary and except where failure to so qualify would
         not  have a  Material  Adverse  Effect.  Each  Subsidiary  has made all
         necessary filings required under all applicable  corporate,  securities
         and any other laws to which it is subject, except where failure to file
         would  not  have  a  Material  Adverse  Effect.   The  Company  has  no
         subsidiaries other than the Subsidiaries.

                  (b)  Governmental  Authority.   Each  filing,   authorization,
         approval, consent, order, registration,  license or permit of any court
         or  governmental  or  regulatory  agency or body required in connection
         with the  execution  and  delivery  by the  Company of the  Transaction
         Documents and the consummation of the transactions therein contemplated
         has been made or obtained, except such as may be required under (i) the
         Hart-Scott-Rodino  Antitrust  Improvements Act of 1976, as amended (the
         "Hart-Scott  Act"),  (ii) the  Securities  Act of 1933, as amended (the
         "Securities  Act"),  the Blue Sky laws or  regulations  of the  various
         states or the securities laws of the provinces of Canada and (iii)




                                      -2-
<PAGE>



         the by-laws or rules of the National Association of Securities Dealers,
         Inc.  The  Company  has also  obtained a  conditional  approval  of The
         Alberta  Stock  Exchange  for  the  transactions  contemplated  in  the
         Transaction Documents.

                  (c)  Authorization  of Agreements.  The Company has full power
         and authority, corporate and other, to execute, deliver and perform the
         Transaction  Documents and to consummate the transactions  contemplated
         thereby  and to perform  its  obligations  thereunder.  The  execution,
         delivery and  performance of the  Transaction  Documents by the Company
         and  the  consummation  by  the  Company  of the  transactions  therein
         contemplated  have  been duly  authorized  by all  necessary  corporate
         action on the part of the Company.  This  Agreement has been, and as of
         the Closing  Date the Warrant  Agreement  will be,  duly  executed  and
         delivered by the Company.  This  Agreement  constitutes,  and as of the
         Closing  Date the  Warrant  Agreement  will  constitute,  the valid and
         binding  obligations of the Company  enforceable against the Company in
         accordance  with their  terms,  except  insofar as  enforcement  may be
         limited   by   applicable   bankruptcy,   insolvency,   reorganization,
         moratorium and other laws  affecting the rights of creditors  generally
         and by the  discretion of courts in granting  equitable  remedies,  and
         except that (i)  enforceability of the  indemnification  provisions and
         the contribution  provisions set forth in this Agreement may be limited
         by Canadian  law,  the federal or state  securities  laws of the United
         States or the public  policy  underlying  any such  laws,  and (ii) the
         validity of Section 21 of this  Agreement and Section 15 of the Warrant
         Agreement may be limited by the public policy of Canada or the State of
         New York, and with respect to the United States  District Court for the
         Southern  District of New York, may be subject to the discretion of the
         Court pursuant to 28 U.S.C.  Section 1404(a).  The execution,  delivery
         and  performance  of the  Transaction  Documents  by the  Company,  the
         consummation by the Company of the transactions  therein  contemplated,
         and the  compliance  by the Company  with the terms of the  Transaction
         Documents do not, and will not, with or without the giving of notice or
         the  lapse of  time,  or  both,  (i)  result  in any  violation  of the
         constating  documents of the Company or any of its  Subsidiaries,  (ii)
         result in a breach of or conflict  with any of the terms or  provisions
         of, or constitute a default  under,  or result in the  modification  or
         termination  of, or result in the creation or  imposition  of any lien,
         security interest,  charge or encumbrance upon any of the properties or
         assets of the  Company  or any of its  Subsidiaries  pursuant  to,  any
         indenture,  mortgage, note, contract,  commitment or other agreement or
         instrument that is material to the Company and the  Subsidiaries  taken
         as a whole,  to which the  Company or any  Subsidiary  is a party or by
         which the Company or any  Subsidiary or any of its or their  properties
         or assets are bound or affected;  (iii) violate any existing applicable
         law, rule,  regulation,  judgment,  order or decree of any governmental
         agency or court,  domestic or  foreign,  having  jurisdiction  over the
         Company or any  Subsidiary or its or their  properties or business;  or
         (iv) have any Material Adverse Effect.




                                      -3-
<PAGE>




                  (d)      Capitalization.

                           (i) The authorized capital of the Company consists of
                  an unlimited  number of Common Shares without par value and an
                  unlimited   number  of  preferred  shares  without  par  value
                  issuable in series. At the date hereof,  there were issued and
                  outstanding  27,284,517 Common Shares,  all of which have been
                  duly  authorized  and validly  issued and are  fully-paid  and
                  non-assessable.  The terms of the Convertible  Shares shall be
                  as described in Exhibit C.

                           (ii) Except as  disclosed in or  contemplated  by the
                  Company  SEC  Reports  (defined  below) and in  Schedule  3(d)
                  hereto, there are no outstanding  securities  convertible into
                  Common  Shares or any  options,  warrants  or other  rights to
                  purchase  any Common  Shares or  securities  convertible  into
                  Common Shares.

                  (e)  Authorization of Convertible  Shares and Warrants.  As of
         the Closing Date,  the Company will have duly  authorized and created a
         series  of  preferred  shares   designated  as  "Series  A  Convertible
         Preferred  Shares"  and  consisting  of  the  Convertible  Shares.  The
         issuance and sale of the Securities and the Common Shares issuable upon
         the  conversion  of the  Convertible  Shares  and the  exercise  of the
         Warrants have been duly authorized by the Corporation and, when issued,
         the  Convertible  Shares and each Common Share issuable upon conversion
         of the  Convertible  Shares and upon exercise of the Warrants,  will be
         validly issued and fully paid and nonassessable, and the holder thereof
         will not be subject  to  personal  liability  solely by reason of being
         such holder. None of the Securities or such Common Shares is or will be
         subject to preemptive rights of any securityholder of the Company.

                  (f)  Consents  and  Approvals.  Except as set forth in Section
         3(b) or on Schedule  3(f), the execution and delivery by the Company of
         the  Transaction  Documents,  the issuance of any of the Securities and
         the Common  Shares  issuable  upon the  conversion  of the  Convertible
         Shares and the exercise of the Warrants, the performance by the Company
         of its obligations hereunder and thereunder and the consummation by the
         Company of the  transactions  contemplated  hereby  and  thereby do not
         require the Company or any of its  Subsidiaries  to obtain any consent,
         approval,  clearance  or action  of, or make any filing  submission  or
         registration  with,  or give any  notice  to,  any  Person or  judicial
         authority.   As  used  in  this  Agreement,   "Person"  shall  mean  an
         individual,  partnership,  joint stock  company,  corporation,  limited
         liability  company,  trust  or  unincorporated   organization,   and  a
         government,  agency,  regulatory  authority  or  political  subdivision
         thereof.

                  (g)  Noncontravention.  Neither  the Company nor either of its
         Subsidiaries  is in  violation  of, or in  default  under,  any term or
         provision  of  (i)  its  constating  documents,   (ii)  any  indenture,
         mortgage, deed of trust, credit agreement, note or other evidence of




                                      -4-
<PAGE>



         indebtedness, contract, commitment, undertaking,  arrangement, or other
         agreement or instrument to which it is a party or by which it or any of
         its  properties or business is bound or subject and which  violation or
         default would have a Material  Adverse Effect  (collectively,  the "Key
         Agreements and Instruments"), or (iii) except as described in Item 1 of
         the  Company's  Annual Report on Form 10-KSB dated October 29, 1997 for
         the year ended July 31,  1997 as  amended  by  Amendment  No. 1 on Form
         10-KSB/A dated October 30, 1997 (such Form 10-KSB, as so amended, being
         hereinafter  referred  to as the  "1997  Form  10-KSB"),  any  existing
         applicable law, rule, regulation,  ordinance,  code, judgment, order or
         decree of any governmental agency or court, domestic or foreign, having
         jurisdiction  over  the  Company  or any  Subsidiary  or  any of  their
         respective  properties  or  businesses,  which  violation  would have a
         Material  Adverse  Effect.   The  Company  and  each  Subsidiary  owns,
         possesses or has obtained all material governmental and other licenses,
         permits, certifications, registrations, approvals or consents and other
         authorizations  necessary  to own or lease,  as the case may be, and to
         operate  its  properties  and to  conduct  its  business  as  currently
         conducted and described in the 1997 Form 10-KSB, and all such licenses,
         permits, certifications,  registrations,  approvals, consents and other
         authorizations are in good standing.  There are no proceedings  pending
         or, to the best of the  Company's  knowledge,  threatened,  seeking  to
         cancel, terminate or limit any such licenses, permits,  certifications,
         registrations,  approvals or consents or  authorizations,  nor is there
         any basis therefor.

                  (h)  Change  in   Ownership.   Neither  the  purchase  of  the
         Securities  by the Investor nor the  consummation  of the  transactions
         contemplated  by this Agreement  will result in (i) a Material  Adverse
         Effect,  (ii) to the best of the Company's  knowledge,  the loss of the
         benefits of any  material  business  relationship,  including  with any
         customer  or  supplier,  (iii) the  acceleration  of the vesting of any
         outstanding option,  warrant, call, commitment,  agreement,  conversion
         right,  preemptive  right or other right to subscribe for,  purchase or
         otherwise acquire any of the shares of the capital stock of the Company
         or any of its Subsidiaries, or debt securities of the Company or any of
         its Subsidiaries (collectively  "Commitments",  and each individually a
         "Commitment"),  (iv) any obligation of the Company or its  Subsidiaries
         to grant,  extend  or enter  into any  Commitment,  or (v) any right in
         favor of any  Person  to  terminate  or  cancel  any Key  Agreement  or
         Instrument.

                  (i)  Litigation.   There  are  no  claims,   actions,   suits,
         proceedings, arbitrations, investigations or inquiries by or before any
         governmental agency, court or tribunal,  domestic or foreign, or before
         any  private  arbitration  tribunal,  pending  or,  to the  best of the
         Company's  knowledge,  threatened against the Company or any Subsidiary
         or  involving  the  properties  or  business  of  the  Company  or  any
         Subsidiary which, if determined  adversely,  would,  individually or in
         the aggregate,  result in a Material Adverse Effect, or which relate in
         any way to the  validity  of the  capital  stock of the  Company or the
         validity of this  Agreement,  or of any action  taken or to be taken by
         the Company  pursuant to or in connection with this Agreement.  Neither
         the Company nor any Subsidiary is subject to any order, writ, judgment,
         injunction, decree, determination or




                                      -5-
<PAGE>



         award of any court or of any  governmental  agency  or  instrumentality
         (whether  federal,  state,  local or foreign) which could reasonably be
         expected to have a Material Adverse Effect.

                  (j) Reports and Financial Statements. Shikaze Ralston and KPMG
         Peat  Marwick  LLP,  which have  rendered  reports  with respect to the
         financial statements included in the 1997 Form 10-KSB, are "independent
         public  accountants"  within the meaning of the  Securities Act and the
         regulations  promulgated  thereunder.  The  Company has  furnished  the
         Investor  with  true and  complete  copies of the  Company's  Quarterly
         Report  on Form  10-QSB  for the  quarter  ended  April 30,  1997,  the
         Company's   Registration  Statement  on  Form  SB-2  (Registration  No.
         333-23137) as amended by Amendment Nos. 1 and 2 thereto,  the 1997 Form
         10-KSB, and the Company's  definitive  Management  Information Circular
         and Proxy Statement dated October 29, 1997 (collectively,  the "Company
         SEC Reports").  As of their  respective  dates, the Company SEC Reports
         were  duly  filed  and  complied  in all  material  respects  with  the
         requirements  of the Securities  Act or the Securities  Exchange Act of
         1934, as amended (the "Exchange Act"), as applicable, and the rules and
         regulations   of  the   Securities   and   Exchange   Commission   (the
         "Commission")  thereunder applicable to such Company SEC Reports. As of
         their  respective  dates,  the  Company SEC Reports did not contain any
         untrue  statement of a material  fact or omit to state a material  fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein,  in light of the circumstances under which they were made, not
         misleading. The audited consolidated financial statements and unaudited
         interim financial statements of the Company included in the Company SEC
         Reports  comply as to form in all  material  respects  with  applicable
         accounting  requirements  of the Securities Act or the Exchange Act, as
         applicable,  and  with  the  published  rules  and  regulations  of the
         Commission with respect thereto.  The financial  statements included in
         the  Company SEC Reports  (i) have been  prepared  in  accordance  with
         United States generally accepted accounting principles ("GAAP") applied
         on a consistent  basis  (except as may be  indicated  therein or in the
         notes thereto),  (ii) present  fairly,  in all material  respects,  the
         financial  position of the Company and its Subsidiaries as at the dates
         thereof  and the  results  of their  operations  and cash flows for the
         periods  then  ended  subject,  in the  case of the  unaudited  interim
         financial  statements,  to normal  year-end audit  adjustments  and any
         other   adjustments   described  therein  and  the  fact  that  certain
         information and notes have been condensed or omitted in accordance with
         the  Securities  Act or the  Exchange  Act  and the  rules  promulgated
         thereunder, and (iii) are, in all material respects, in accordance with
         the books of account  and records of the  Company  except as  indicated
         therein.

                  (k)  Liabilities.  Except as and to the  extent  reflected  or
         reserved  against  in  the  consolidated  financial  statements  of the
         Company  included in the 1997 Form  10-KSB,  the Company as at July 31,
         1997,  had  no  material  liabilities,  debts,  obligations  or  claims
         asserted   against  it,  whether  accrued,   absolute,   contingent  or
         otherwise,  and whether due or to become due,  and  including,  but not
         limited to, liabilities on account of taxes,




                                      -6-
<PAGE>



         unfunded past service liabilities under any pension,  profit sharing or
         similar plan, other governmental charges or lawsuits brought subsequent
         to such date.

                  (l) Material  Contracts.  Schedule  3(l) sets forth a true and
         complete  list of each Key  Agreement  and  Instrument  other  than Key
         Agreements and Instruments  listed as exhibits to the 1997 Form 10-KSB.
         Each Key  Agreement  and  Instrument  and any other  material  contract
         listed as an  exhibit  to the 1997 Form  10-KSB  that is  currently  in
         effect, is valid,  binding and enforceable  against the Company or such
         Subsidiary  and, to the  Company's  best  knowledge,  the other parties
         thereto,  in accordance with its terms, and in full force and effect on
         the date hereof.

                  (m)      Employees.

                           (i)  The  Company  and its  Subsidiaries  are in full
                  compliance with all laws regarding  employment,  wages, hours,
                  equal opportunity, collective bargaining and payment of social
                  security   and  other   taxes   except  to  the  extent   that
                  noncompliance would not have a Material Adverse Effect. Except
                  as would not have a Material  Adverse Effect,  no complaint of
                  any  unfair  labor  practice  or   discriminatory   employment
                  practice  against the Company or any Subsidiary has been filed
                  or, to the best of the Company's  knowledge,  threatened to be
                  filed with or by the National Labor Relations Board, the Equal
                  Employment  Opportunity Commission or any other administrative
                  agency,  federal or state,  that regulates labor or employment
                  practices,  nor is any grievance  filed or, to the best of the
                  Company's  knowledge,  threatened  to be  filed,  against  the
                  Company or any  Subsidiary  by any  employee  pursuant  to any
                  collective  bargaining or other employment  agreement to which
                  the  Company  or any  Subsidiary  is a party or is bound.  The
                  Company  and  its  Subsidiaries  are in  compliance  with  all
                  applicable  federal,  state,  provincial  and  local  laws and
                  regulations regarding occupational safety and health standards
                  except  to the  extent  that  noncompliance  will  not  have a
                  Material  Adverse  Effect,  and have  received  no  unresolved
                  complaints from any federal, state, provincial or local agency
                  or  regulatory  body  alleging  violations of any such laws or
                  regulations.

                           (ii)  Except as set forth in Schedule  3(m)(ii),  the
                  employment  of all  Persons  employed by the Company or any of
                  its  Subsidiaries  is, subject to the provisions of applicable
                  law,  terminable  at will  without  any  penalty or  severance
                  obligation of any kind on the part of the  employer.  All sums
                  due for  employee  compensation  and benefits and all vacation
                  time  owing  to any  employees  of the  Company  or any of its
                  Subsidiaries  have been  duly and  adequately  accrued  on the
                  accounting records of the Company and its Subsidiaries.

                           (iii)  The  Company  is  not  aware  that  any of its
                  executive officers is obligated under any contract  (including
                  licenses, covenants or commitments of any




                                      -7-
<PAGE>



                  nature) or other agreement, or subject to any judgment, decree
                  or order of any court or  administrative  agency,  that  would
                  interfere  with  the  use of  such  executive  officer's  best
                  efforts to promote the  interests of the Company or that would
                  conflict  with  the  Company's  business  as  proposed  to  be
                  conducted.

                           (iv) The Company is not aware that any officer or key
                  employee,  or that any  group  of key  employees,  intends  to
                  terminate  their  employment  with the  Company,  nor does the
                  Company have a present  intention to terminate the  employment
                  of any of the foregoing.

                  (n) Employee Benefit Plans.  Except as referred to in Schedule
         3(n) or the Company SEC Reports,  the Company and its Subsidiaries have
         no retirement or pension plans in respect of Canadian  employees and no
         employee benefit plans (as defined for the purpose of employees located
         in the United States in Section 3(3) of the Employee  Retirement Income
         Security  Act of 1974)  covering  former and current  employees  of the
         Company or any of its  Subsidiaries,  or under which the Company or any
         of its  Subsidiaries  has any  obligation or  liability.  Schedule 3(n)
         lists all material compensation plans,  including,  without limitation,
         those relating to bonuses, commissions,  profit-sharing, savings, stock
         options, insurance and deferred compensation or other similar fringe or
         employee benefits  arrangements covering former or current employees of
         the  Company or any of its  Subsidiaries  or under which the Company or
         any of its  Subsidiaries  has any  obligation  or  liability  (each,  a
         "Benefit Arrangement") that are not referred to in the 1997 Form 10-KSB
         or material incorporated therein by reference. True and complete copies
         of all Benefit Arrangements have been provided or made available to the
         Investor  for  inspection  prior  to  the  date  hereof.   The  Benefit
         Arrangements are and have been  administered in substantial  compliance
         with their terms and with the requirements of applicable law.

                  (o)      Patents, Licenses, etc.

                           (i) Except as  described  in the 1997 Form 10-KSB and
                  except  with  respect  to the  security  interest  granted  or
                  assumed in connection  with the Company's  acquisition  of the
                  Midwest  Division of Hearing  Health  Services,  Inc., and the
                  security   interest   granted  to  Royal  Bank  of  Canada  by
                  Sonus-Canada  Ltd.,  the  Company  or one of its  Subsidiaries
                  owns, free and clear of all encumbrances, restrictions, liens,
                  security  interests and charges,  and has good and  marketable
                  title to, or holds  adequate  licenses or otherwise  possesses
                  all such  rights  as are  necessary  to use all  patents  (and
                  applications   therefor),   patent  disclosures,   trademarks,
                  service  marks,  trade  names,  copyrights  (and  applications
                  therefor),   integrated  circuit   topographies,   inventions,
                  discoveries,   processes,  know-how,  scientific,   technical,
                  engineering and marketing  data,  formulae and techniques used
                  or proposed to be used, in or necessary for the conduct of its
                  business  as now  conducted  or as  proposed  to be  conducted
                  (collectively, "Intellectual Property").




                                      -8-
<PAGE>



                           (ii) Neither the Company nor any of its  Subsidiaries
                  has received  notice nor  otherwise  has reason to know of any
                  conflict  or  alleged  conflict  with  the  rights  of  others
                  pertaining  to the  Intellectual  Property  described  in this
                  Section  3(o) where the effect of such  conflict  could have a
                  Material Adverse Effect. To the Company's best knowledge,  the
                  Company's business,  as presently conducted and as proposed to
                  be  conducted,  does not  infringe  upon or violate any patent
                  rights or trade  secrets  of  others.  To the  Company's  best
                  knowledge,  the Company and its Subsidiaries have the right to
                  use all trade  secrets,  processes,  customer  lists and other
                  rights  incident  to  their   respective   businesses  as  now
                  conducted or as proposed to be conducted.

                           (iii) To the best  knowledge  of the Chief  Executive
                  Officer  and  Chief  Financial  Officer  of  the  Company,  no
                  employee  of  the  Company  or any  of  its  Subsidiaries  has
                  violated any employment  agreement or proprietary  information
                  agreement which he or she had with a previous  employer or any
                  patent policy of such employer, or is a party to or threatened
                  by any litigation  concerning any patents,  trademarks,  trade
                  secrets, service names, trade names, copyrights,  licenses and
                  the like.

                  (p) Taxes.  The Company and each  Subsidiary has filed all tax
         returns required to be filed with the appropriate taxing authorities in
         Canada  and  the  United  States,  including  all  provincial,   state,
         municipal  and other  local  authorities  (whether  relating to income,
         sales,  goods and services,  franchise,  withholding,  real or personal
         property or other types of taxes) or has duly  obtained  extensions  of
         time for the filing thereof,  and has paid in full all taxes which have
         become due  pursuant  to such  returns or claimed to be due by any such
         taxing authority or otherwise due and owing, except for taxes which are
         being contested in good faith by way of appropriate  proceedings and in
         respect of which appropriate  reserves have been taken on the financial
         statements of the Company and except where the failure to file such tax
         returns or to pay such taxes would not have a Material  Adverse Effect.
         The  provisions  for taxes on the audited and unaudited  balance sheets
         described  in  Section  3(j)  are  sufficient  for the  payment  in all
         material respects of all accrued and unpaid federal,  state, county and
         local taxes of the Company and its Subsidiaries whether or not assessed
         or disputed as of the respective dates of such balance sheets.

                  (q)  Properties.  The Company and each Subsidiary has good and
         marketable title to all properties owned by them, free and clear of all
         security  interests,   charges,   mortgages,  liens,  encumbrances  and
         defects,  except such as are  described in the 1997 Form 10-KSB or were
         granted or assumed in connection with the Company's  acquisition of the
         Midwest  Division of Hearing  Health  Services,  Inc. or such as do not
         materially affect the value or  transferability of such property and do
         not interfere with the use of such property made or proposed to be made
         by the  Company  or such  Subsidiary.  The  leases,  licenses  or other
         contracts or instruments under which the Company and each




                                      -9-
<PAGE>



         Subsidiary  leases,  holds or is entitled to use any property,  real or
         personal,  are  valid,   subsisting  and  enforceable  with  only  such
         exceptions  as are not  material and do not  interfere  with the use of
         such  property  made,  or proposed  to be made,  by the Company or such
         Subsidiary,  and all  rentals,  royalties  or other  payments  accruing
         thereunder  which became due prior to the date of this  Agreement  have
         been duly paid,  and  neither  the  Company  nor any  Subsidiary  is in
         default  thereunder  and, to the best of the  Company's  knowledge,  no
         event has  occurred  which,  with the  passage of time or the giving of
         notice,  or both,  would constitute a default  thereunder.  Neither the
         Company nor any Subsidiary has received  notice of any violation of any
         applicable law, ordinance, regulation, order or requirement relating to
         its owned or leased  properties,  except where such violation would not
         have a Material Adverse Effect.

                  (r)  Condition  of  Properties.  All  facilities,   machinery,
         equipment,  fixtures,  vehicles and other properties  owned,  leased or
         used by the Company and its  Subsidiaries are reasonably fit and usable
         for the  purposes  for which  they are being  used,  are  adequate  and
         sufficient for the Company's or such Subsidiary's  business and conform
         in all material  respects with all applicable  ordinances,  regulations
         and laws.

                  (s) Insurance.  The Company and each Subsidiary has adequately
         insured its properties against loss or damage by fire or other casualty
         and  maintains  such other  insurance,  including  but not  limited to,
         liability  insurance,  as is usually  maintained  by prudent  companies
         engaged in the same or similar businesses.

                  (t) No Adverse  Change.  Since the date of the latest  audited
         financial  statements  in the 1997 Form  10-KSB,  except  as  otherwise
         stated in or  contemplated  by the 1997 Form  10-KSB and except for the
         Transaction  Documents,  (i) the  Company  has  not  entered  into  any
         material  transactions  other than in the ordinary  course of business;
         and (ii) there has not been,  and prior to the Closing  Date there will
         not be, any event that constitutes a Material Adverse Effect.

                  (u) Transactions with Related Parties.  Except as described in
         the 1997 Form 10-KSB or material  incorporated  therein by reference or
         in Schedule 3(u),  neither the Company nor any Subsidiary is a party to
         any agreement with any of the Company's directors,  officers or, to the
         best of the Company's  knowledge,  any stockholders or any affiliate or
         family member of any of the foregoing including, without limitation any
         agreement  under  which it: (i) leases  any real or  personal  property
         (either to or from such Person), (ii) licenses technology (either to or
         from such  Person),  (iii) is  obligated  to purchase  any  tangible or
         intangible asset from or sell such asset to such Person, (iv) purchases
         products or services  from such Person (v) has  borrowed  money from or
         lent money to such Person, or (vi) employs as an employee or engages as
         a consultant  any family  member of any of the  Company's  directors or
         officers.  To  the  best  knowledge  of the  Company,  there  exist  no
         agreements  among  stockholders  of the Company to act in concert  with
         respect to their voting or holding of Company securities.




                                      -10-
<PAGE>



                  (v) Interest in  Competitors.  Neither the Company nor, to the
         best  of its  knowledge,  any of its  officers  or  directors,  has any
         interest, either by way of contract or by way of investment (other than
         as  holder of not more than 2% of the  outstanding  capital  stock of a
         publicly  traded Person) or otherwise,  directly or indirectly,  in any
         Person  other  than the  Company  that (i)  provides  any  services  or
         designs,  produces or sells any product or product  lines or engages in
         any activity  similar to or  competitive  with any  activity  currently
         proposed to be conducted by the Company or any of its  Subsidiaries  or
         (ii) has any direct or indirect interest in any asset or property, real
         or personal, tangible or intangible, of the Company.

                  (w) Registration  Rights.  Except with respect to registration
         rights  granted in  connection  with (i)  100,000  options to  purchase
         Common Shares granted to The Equity Group,  Inc.; (ii) Section 8 hereof
         and (iii) 470,359 Common Shares owned by Gregory J. Frazer, the Company
         will not, as of the Closing Date,  be under any  obligation to register
         any of its securities under the Securities Act.

                  (x) Private Offering. Neither the Company nor anyone acting on
         its behalf has sold or has offered any of the  Securities  for sale to,
         or solicited offers to buy from, or otherwise  approached or negotiated
         with respect thereto with, any prospective purchaser of the Securities,
         other than the  Investor.  Neither the Company nor anyone acting on its
         behalf shall offer the  Securities for issue or sale to, or solicit any
         offer  to  acquire  any of the same  from,  anyone  so as to bring  the
         issuance and sale of such Securities,  or any part thereof,  within the
         provisions  of  Section  5  of  the  Securities  Act.  Based  upon  the
         representations  of the  Investor  set forth in  Section 5 hereof,  the
         offer,  issuance and sale of the Securities are and will be 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  provincial  and  state
         securities laws.

                  (y) Brokerage.  Except for amounts payable to Salomon Brothers
         Inc. and RN Capital  (collectively,  the  "Advisors"),  as set forth on
         Schedule 3(y) hereto, there are no claims for brokerage  commissions or
         finder's  fees  or  similar   compensation   in  connection   with  the
         transactions  contemplated  by this Agreement  based on any arrangement
         made by or on behalf of the Company and the Company agrees to indemnify
         and hold the Investor harmless against any costs or damages incurred as
         a result of any such claim.  Neither of the Advisors is an affiliate of
         the  Company  or  either  of its  Subsidiaries,  or of any  officer  or
         director of the Company or either of its Subsidiaries.

                  (z) Illegal or Unauthorized Payments; Political Contributions.
         Neither the Company nor any of its Subsidiaries nor, to the best of the
         Company's knowledge (after reasonable inquiry of its executive officers
         and  directors),  any of the  current  officers  and  directors  of the
         Company or any of its Subsidiaries,  has, directly or indirectly,  made
         or authorized any payment,  contribution or gift of money, property, or
         services, (a) as a




                                      -11-
<PAGE>



         kickback or bribe to any Person or (b) to any  political  organization,
         or the holder of or any aspirant to any elective or  appointive  public
         office except for personal  political  contributions  not involving the
         use of funds of the Company or any of its Subsidiaries.

                  (aa) Material Facts. This Agreement,  the schedules  furnished
         contemporaneously  herewith,  and  the  other  agreements,   documents,
         certificates or written statements  furnished or to be furnished to the
         Investor  through  the  Closing  Date by or on behalf of the Company in
         connection with the transactions  contemplated hereby taken as a whole,
         do not contain any untrue statement of a material fact or omit to state
         a material fact necessary to make the statements  contained  therein or
         herein,  in light of the  circumstances  in which they were  made,  not
         misleading. Except for factors affecting the economy or the health care
         industry generally,  there is no fact which is known to the Company and
         which has not been disclosed  herein or otherwise by the Company to the
         Investor which is reasonably likely to have a Material Adverse Effect.

                  (bb) No Integrated  Offering.  Neither the Company, nor any of
         its affiliates,  nor any person acting on its behalf,  has, directly or
         indirectly,  made any offers or sales of any security or solicited  any
         offers to buy any  security  under  circumstances  that  would  require
         registration   of  the  Securities   being  offered  hereby  under  the
         Securities  Act or the  filing of any  prospectus  under  any  Canadian
         securities laws.

         4. Covenants of the Company. The Company covenants and agrees that:

                  (a) it shall use its  reasonable  best  efforts to satisfy the
         requirements  of the  conditional  approval letter of The Alberta Stock
         Exchange as of the Closing Date or as soon as practicable thereafter;

                  (b) it will not, without the Investor's prior written consent,
         take any action  prior to the Closing Date which would result in any of
         the representations or warranties contained in this Agreement not being
         true at and as of the time immediately  after such action, or in any of
         the Company's  covenants contained in this Agreement becoming incapable
         of  performance.  The Company will promptly  advise the Investor of any
         action  or event of which it  becomes  aware  which  has the  effect of
         making incorrect any of such representations or warranties or which has
         the effect of rendering any of such covenants incapable of performance;
         and

                  (c) promptly  after the Closing  Date,  and for so long as the
         Investor owns beneficially  (within the meaning of Rule 13d-3 under the
         Exchange  Act)  at  least  3,333,333   outstanding   Common  Shares  or
         Convertible  Shares (as  appropriately  adjusted for any stock  splits,
         consolidations  or the like), the Company shall use its reasonable best
         efforts  to fix  and  maintain  the  number  of  Directors  that  shall
         constitute  the entire Board of Directors of the Company (the  "Board")
         to be not more  than  eleven  (11).  For so long as the  Investor  owns
         beneficially (within the meaning of Rule 13d-3 under the Exchange




                                      -12-
<PAGE>



         Act) a number  of  outstanding  Common  Shares  or  Convertible  Shares
         constituting at least 10% of the  outstanding  Common Shares (which for
         this  purpose  shall  include  the  Common  Shares  issuable  upon  the
         conversion of the Convertible Shares but not the Common Shares issuable
         upon the exercise of the  Warrants),  the Company will nominate and use
         its  reasonable  best  efforts to cause to be  elected  and to cause to
         remain as  directors  on the Board two (2)  persons  designated  by the
         Investor,  who shall be  reasonably  satisfactory  to the  Company  and
         subject  to  applicable  law  and the  approval  of The  Alberta  Stock
         Exchange,  such  number to  increase to three (3) if and for as long as
         the number of Directors that shall constitute the entire Board shall be
         in excess of eight  (8).  For  purposes  of the  immediately  preceding
         sentence,  the term "reasonable  best efforts" shall include  adjusting
         the  composition  of the Board to  include  on the Board the  number of
         "Resident   Canadians,"  as  such  term  is  defined  in  the  Business
         Corporations Act (Alberta),  needed to accommodate the designees of the
         Investor  and to comply with such Act.  Such number of  directors to be
         designated  by  the  Investor  shall  be  (i)  decreased  by one if the
         Investor owns beneficially  (within the meaning of Rule 13d-3 under the
         Exchange  Act) a number of  outstanding  Common  Shares or  Convertible
         Shares  constituting  less than 10% of the  outstanding  Common  Shares
         (which for this purpose shall  include the Common Shares  issuable upon
         the  conversion  of the  Convertible  Shares but not the Common  Shares
         issuable upon the exercise of the Warrants), and (ii) decreased to none
         if the  Investor  owns  beneficially  (within the meaning of Rule 13d-3
         under the Exchange Act) less than 3,333,333  outstanding  Common Shares
         or Convertible Shares (as appropriately  adjusted for any stock splits,
         consolidations  or the like).  The Investor shall,  during such period,
         have the right to designate a person,  reasonably  satisfactory  to the
         Company and subject to  applicable  law and the approval of The Alberta
         Stock Exchange,  to fill any vacancy created by the death,  disability,
         retirement or removal of any such individual  previously  designated by
         the  Investor.  The  Company  shall  pay all  reasonable  out-of-pocket
         expenses  incurred  by the  Directors  designated  by the  Investor  in
         connection with attending  Board meetings or transacting  other Company
         business.

                  In the  event  that the  Investor  shall  transfer  to any one
         purchaser  beneficial ownership (within the meaning of Rule 13d-3 under
         the Exchange Act) of at least 6,666,667 outstanding  Convertible Shares
         or Common Shares issued upon  conversion of Convertible  Shares (all as
         appropriately  adjusted  for any stock  splits,  consolidations  or the
         like),  then  the  Investor  in its  discretion  may  transfer  to such
         purchaser its right to designate one (1) director as provided above. If
         so transferred,  such right shall not be further transferable and shall
         terminate at such time as such purchaser  shall own  beneficially  less
         than 3,333,333 outstanding Convertible Shares or such Common Shares (as
         so  adjusted).  Any  such  purchaser's  designee  shall  be  reasonably
         satisfactory  to the  Company  and  subject to  applicable  law and the
         approval of The Alberta Stock Exchange.

                  (d) Use of Proceeds. The proceeds received by the Company from
         the issuance and sale of the Securities shall be used by the Company to
         make acquisitions and for working capital purposes.




                                      -13-
<PAGE>



                  (e)  Financial  and Business  Information.  The Company  shall
         deliver to the Investor:

                           (i) Monthly  and  Quarterly  Statements  - as soon as
                  practicable,  and in any event  within 30 days after the close
                  of each month of each  fiscal  year of the Company in the case
                  of monthly  statements  and 45 days after the close of each of
                  the first  three  fiscal  quarters  of each fiscal year of the
                  Company in the case of quarterly  statements,  a  consolidated
                  balance sheet, statement of income and statement of cash flows
                  of the  Company and any  subsidiaries  as at the close of such
                  month or quarter  and  covering  operations  for such month or
                  quarter,  as the case may be, and the portion of the Company's
                  fiscal  year  ending on the last day of such month or quarter,
                  all in reasonable detail and prepared in accordance with GAAP,
                  subject to audit and year-end  adjustments,  setting  forth in
                  each case in  comparative  form the figures for the comparable
                  period of the  previous  fiscal year.  The Company  shall also
                  provide comparisons, on a quarterly and year-to-date basis, of
                  each  pertinent  item to the budget  referred to in subsection
                  (iii) below; such statement shall include, without limitation,
                  the results of operations for all clinics owned by the Company
                  during  the same  period  of both the  current  and the  prior
                  fiscal year.

                           (ii) Annual Statements - as soon as practicable after
                  the end of each fiscal year of the  Company,  and in any event
                  within 90 days thereafter, duplicate copies of:

                                    (A)   a consolidated balance  sheet  of  the
                           Company and any subsidiaries at the end of such year;
                           and

                                    (B)   consolidated   statements  of  income,
                           stockholders'  equity and cash  flows of the  Company
                           and any subsidiaries for such year,  setting forth in
                           each case in  comparative  form the  figures  for the
                           previous  fiscal year,  all in reasonable  detail and
                           accompanied  by an  opinion  thereon  of  independent
                           certified public  accountants of recognized  national
                           standing selected by the Company.

                           (iii) Business  Plan;  Projections - no later than 30
                  days  prior to the  commencement  of each  fiscal  year of the
                  Company,  an annual business plan of the Company and operating
                  results,  prepared  on a  monthly  basis,  and  a  three  year
                  business  plan of the Company  and  projections  of  operating
                  results.  Such business  plans and  projections  shall contain
                  such substance and detail and shall be in such form as will be
                  reasonably acceptable to the Investor.

                           (iv) Audit Reports - promptly  upon receipt  thereof,
                  one copy of each other financial  report and internal  control
                  letter submitted to the Company by




                                      -14-
<PAGE>



                  independent accountants in connection with any annual, interim
                  or special audit made by them of the books of the Company.

                           (v) Other  Reports -  promptly  upon  their  becoming
                  available,  one copy of:  each  financial  statement,  report,
                  notice or proxy  statement sent by the Company to stockholders
                  generally;   each  financial  statement,   report,  notice  or
                  definitive  proxy  statement sent by the Company or any of its
                  subsidiaries to the Commission or any successor  agency or any
                  Canadian securities regulatory authority, if applicable;  each
                  regular or  periodic  report and any  registration  statement,
                  prospectus or written  communication  (other than  transmittal
                  letters)  in  respect  thereof  filed  by the  Company  or any
                  subsidiary  with,  or received  by such  Person in  connection
                  therewith from, any domestic or foreign  securities  exchange,
                  the  Commission  or  any  successor   agency  or  any  foreign
                  regulatory  authority  performing  functions  similar  to  the
                  Commission;  any press  release  issued by the  Company or any
                  subsidiary;  and any  material  communications  of any  nature
                  whatsoever  prepared by the Commission or any successor agency
                  thereto or any Canadian securities regulatory authority or any
                  state blue sky or securities law  commission  which relates to
                  or affects in any way the Company or any subsidiary.

                           (vi)  Progress  Report  -  prior  to  each  regularly
                  scheduled meeting of the Board of Directors of the Company,  a
                  narrative report of the Company's activities since the date of
                  the last such  report,  including  a  description  of business
                  development, operating results and marketing efforts.

                           (vii)   Requested   Information  -  with   reasonable
                  promptness,  such other data and  information  as from time to
                  time may be reasonably requested by the Investor.

                  (f)  Inspection.  The Company shall permit the  Investor,  its
         nominees,   and  representatives  to  visit  and  inspect  any  of  the
         properties  of the  Company  and its  Subsidiaries,  to examine all its
         books of account,  records,  reports and other papers not contractually
         required  of the  Company to be kept  confidential  or secret,  to make
         copies and extracts therefrom, and to discuss its affairs, finances and
         accounts  with the  Company's  officers,  directors,  key employees and
         independent  public  accountants  or any of them (and by this provision
         the Company  authorizes said accountants to discuss with such Investor,
         its  nominees  and  representatives  the  finances  and  affairs of the
         Company  and its  Subsidiaries),  all at such  reasonable  times and as
         often as may be reasonably requested.

                  (g) Takeover  Statute.  If any  corporate  takeover  provision
         under  the laws of any  provincial,  state  or  federal  "fair  price",
         "moratorium", "control share acquisition" or other similar antitakeover
         statute or  regulation  shall  become  applicable  to the  transactions
         contemplated hereby, the Company and the members of the Board shall, to
         the extent




                                      -15-
<PAGE>



         permitted by applicable law, grant such approvals and take such actions
         as are necessary so that the  transactions  contemplated  hereby may be
         consummated as promptly as practicable on the terms contemplated hereby
         and  otherwise act to eliminate or minimize the effects of such statute
         or regulation on the transactions contemplated hereby.

                  (h) Conduct of Business  and  Maintenance  of  Existence.  The
         Company will continue to engage in business of the same general type as
         now  conducted  by it, and  preserve,  renew and keep in full force and
         effect  its  corporate  existence  and take all  reasonable  action  to
         maintain all rights,  privileges and franchises  necessary or desirable
         in the normal conduct of its business.

                  (i)  Compliance  with Laws.  The Company and its  subsidiaries
         will comply in all material  respects with all applicable laws,  rules,
         regulations  and orders  except  where the failure to comply  would not
         have a Material Adverse Effect.

                  (j)  Insurance.  The  Company  will  maintain  insurance  with
         responsible and reputable  insurance  companies or associations in such
         amounts and covering  such risks as is usually  carried by companies of
         similar size and credit standing engaged in similar business and owning
         similar  properties,  provided  that  such  insurance  is  and  remains
         available to the Company at commercially reasonable rates.

                  (k) Keeping of Books.  The Company  will keep proper  books of
         record and account,  in which full and correct entries shall be made of
         all financial  transactions  and the assets and business of the Company
         and its subsidiaries in accordance with GAAP.

                  (l) Lost, etc.  Certificates  Evidencing Securities (or Common
         Shares);  Ex change. Upon receipt by the Company of evidence reasonably
         satisfactory to it of the loss, theft, destruction or mutilation of any
         certificate  evidencing  any  Securities  or Common Shares owned by the
         Investor,  and (in the  case  of  loss,  theft  or  destruction)  of an
         unsecured  indemnity  satisfactory to it, and upon reimbursement to the
         Company  of  all  reasonable  expenses  incidental  thereto,  and  upon
         surrender and  cancellation  of such  certificate,  if  mutilated,  the
         Company  will  make  and  deliver  in lieu of  such  certificate  a new
         certificate of like tenor and for the number of securities evidenced by
         such certificate which remain outstanding.  The Investor's agreement of
         indemnity shall  constitute  indemnity  satisfactory to the Company for
         purposes  of this  Section  4(l).  Upon  surrender  of any  certificate
         representing  any  securities of the Company for exchange at the office
         of the  Company,  the Company at its expense will cause to be issued in
         exchange   therefor   new   certificates   in  such   denomination   or
         denominations  as may be  requested  for the same  aggregate  number of
         securities represented by the certificate so surrendered and registered
         in the name of the Investor.

                  (m) Limitations on Corporate Actions. The Company shall not,
         without the consent of the Investor, such consent not to be
         unreasonably withheld, (A) sell, lease,




                                      -16-
<PAGE>



         exchange  or  transfer  all or  substantially  all of its assets to any
         person  other than an  affiliate of the  Company;  (B)  amalgamate  the
         Company with another corporation with the effect that the then existing
         shareholders of the Company, ordinarily having the right to vote in the
         election of directors,  hold less than 51% of the combined voting power
         of the amalgamated corporation;  (C) permit either Subsidiary to merge,
         amalgamate or  consolidate  with or into another  corporation  with the
         effect that the Company will hold less than 51% of the combined  voting
         power of the surviving corporation; (D) materially change the nature of
         the Company's business; (E) effect a liquidation,  amalgamation or sale
         of the Company or sell  substantially  all of its or its  Subsidiaries'
         assets;  or (F) except as described in Schedule 4(m),  redeem or pay or
         permit  any of its  Subsidiaries  to  redeem  or pay  any  dividend  or
         distribution on its Common Shares.

                  (n) Commencement and Termination of Covenants. The obligations
         of the  Company  and the rights of the  Investor  set forth in Sections
         4(e),  4(f),  4(h),  4(i),  4(j), 4(k) and 4(m) begin as of the Closing
         Date; from and after the Closing Date, such obligations shall terminate
         once the  Investor no longer owns  beneficially  (within the meaning of
         Rule  13d-3  under the  Exchange  Act) at least  3,333,333  outstanding
         Common Shares or Convertible Shares (as appropriately  adjusted for any
         stock splits, consolidations or the like).

                  (o) Form D Filing. The Company will timely file a Form D under
         the  Securities  Act in  connection  with  the  offer  and  sale of the
         Securities.

         5.       Representations,  Warranties  and  Covenants of the  Investor;
                  Additional Covenants of the Company.

                  (a) General. The Investor hereby represents and warrants that:

                           (i) it has full power and  authority,  corporate  and
                  other,  to  execute,   deliver  and  perform  the  Transaction
                  Documents  and to  consummate  the  transactions  contemplated
                  thereby  and  to  perform  its  obligations  thereunder.  This
                  Agreement  has been,  and as of the  Closing  Date the Warrant
                  Agreement   will  be,  duly  executed  and  delivered  by  the
                  Investor.  This Agreement  constitutes,  and as of the Closing
                  Date the  Warrant  Agreement  will  constitute,  the valid and
                  binding  obligation  of the Investor  enforceable  against the
                  Investor in accordance with their terms;

                           (ii)  it  is  an  "accredited  investor"  within  the
                  meaning of Rule 501(a) of  Regulation  D under the  Securities
                  Act, and will  purchase the  Securities  and the Common Shares
                  issuable on the conversion of the  Convertible  Shares and the
                  exercise  of the  Warrants  for its own account and not with a
                  view to any  distribution  thereof in a transaction that would
                  violate the Securities Act or the securities laws of any State
                  of the United States or any other applicable




                                      -17-
<PAGE>



                  jurisdiction, but subject, nevertheless, to any requirement of
                  law that the  disposition of the Investor's  property shall at
                  all  times be  within  the  Investor's  control,  and  without
                  prejudice  to the  Investor's  right  at all  times to sell or
                  otherwise  dispose of all or any part of such securities under
                  a registration  statement under the Securities Act or under an
                  exemption   from  said   registration   available   under  the
                  Securities Act;

                           (iii)  it  understands  that  an  investment  in  the
                  Company bears a high degree of risk and represents that it has
                  such  knowledge  and  experience  in  financial  and  business
                  matters that it is capable of evaluating  the merits and risks
                  of purchasing the  Securities  and the Common Shares  issuable
                  upon  exercise  of the  Warrants,  and is  able  to  bear  the
                  economic risks of its  investment for an indefinite  period of
                  time; and

                           (iv)  it  has  received  copies  of the  Company  SEC
                  Reports  and  has  had  access  to such  financial  and  other
                  information, and has been afforded the opportunity to ask such
                  questions  of  representatives  of  the  Company  and  receive
                  answers thereto,  as it deems necessary in connection with its
                  purchase of the Securities.

                  (b) Disclosure and  Non-Public  Information.  As to so much of
         the  information  and other material  furnished  under or in connection
         with this Agreement  (whether  furnished  before,  on or after the date
         hereof,  including without limitation information furnished pursuant to
         Sections  4(e) and (f) hereof) as  constitutes  or contains  non-public
         business,  financial  or other  information  of the  Company  or either
         Subsidiary  ("Non-Public  Information"),  the  Investor  covenants  for
         itself and its  directors,  officers and partners  that it will use due
         care to prevent its officers, directors,  partners, employees, counsel,
         accountants   and  other   representatives   from  (i)  disclosing  any
         Non-Public Information to Persons other than the Investors's authorized
         employees,  counsel,  accountants,   shareholders,   partners,  limited
         partners and other authorized  representatives or (ii) using Non-Public
         Information in any manner that would constitute a violation of Canadian
         federal  or  provincial  or U.S.  federal  or  state  securities  laws;
         provided,  however,  that the  Investor  may  disclose  or deliver  any
         information  or other  material  disclosed  to or received by it should
         such  Investor be advised by its counsel  (such writing to be delivered
         to the Company)  that such  disclosure  or delivery is required by law,
         regulation  or judicial or  administrative  order.  In the event of any
         termination of this  Agreement  prior to the Closing Date, the Investor
         shall  return  to the  Company  all  confidential  material  previously
         furnished  to  such  Investor  or its  officers,  directors,  partners,
         employees, counsel, accountants and other representatives in connection
         with this  transaction.  For purposes of this Section 5(b),  "due care"
         means at least the same level of care that such  Investor  would use to
         protect  the  confidentiality  of  its  own  sensitive  or  proprietary
         information,  and this  obligation  shall survive  termination  of this
         Agreement.





                                      -18-
<PAGE>



                  (c) Securities Act Matters. The Investor acknowledges that the
         Securities are being offered in a transaction  not involving any public
         offering  within  the  meaning  of the  Securities  Act  and  that  the
         Securities  and the Common Shares  issuable upon the  conversion of the
         Convertible  Shares  and the  exercise  of the  Warrants  have not been
         registered  under the Securities  Act, or under the securities  laws of
         any  province of Canada,  and agrees that it will not sell or otherwise
         transfer the Securities  except  pursuant to an effective  registration
         statement under the Securities Act or Canadian  securities laws or in a
         transaction which, in the opinion of counsel reasonably satisfactory to
         the Company,  qualifies as an exempt  transaction  under the Securities
         Act and the rules and regulations promulgated thereunder.  The Investor
         acknowledges  that  certificates  for the  Securities  and such  Common
         Shares will bear a legend reflecting the substance of this Section 5(c)
         and that  appropriate  stop transfer  orders may be lodged with respect
         thereto.

                  (d) Limitation on Transfer.  The Investor agrees that it shall
         in no event sell or otherwise  transfer (i) any of the Securities for a
         period  ending  six  months  from the  Closing  Date or (ii) any of the
         Common  Shares   issuable  upon  the  conversion  or  exercise  of  the
         Securities  for a period of six months from the Closing  Date.  If such
         Common  Shares are  issued on a date  later  than six  months  from the
         Closing Date, they shall be freely transferrable, subject to applicable
         securities laws.

                  (e) No  Intention  of Board  to Pay  Dividends.  The  Investor
         acknowledges  that  the  Board  of  Directors  of  the  Company  has no
         obligation  to declare and has no present  intention of  declaring  any
         dividends  on the  Convertible  Shares,  but that such  dividends  will
         nevertheless  accumulate  pursuant  to the  terms  of  the  Convertible
         Shares.

                  (f)  Hart-Scott Act  Compliance.  The Company and the Investor
         will promptly  prepare and file, or cause to be prepared and filed, any
         notification  or response to any  request  for  additional  information
         required  to be  filed  under  the  Hart-Scott  Act and the  rules  and
         regulations  promulgated  thereunder with respect to the acquisition of
         the  Securities and the  acquisition  of Common Shares,  if any, by the
         Investor upon conversion or exercise of any of the  Securities.  If any
         additional filings are required under the  Hart-Scott Act in connection
         with the  exercise  of the  Warrants  or the  acquisition  of any other
         Securities,  the  Company  shall  promptly,  and  in any  event  within
         ten-days  following a written  request from the  Investor,  prepare and
         file, or cause to be prepared and filed,  any  notification or response
         to any request for  additional  information  required to be filed under
         the Hart-Scott Act and the rules and regulations promulgated thereunder
         in connection  with any  acquisition,  conversion or exercise of any of
         the Securities.

                  (g) Consents and Approvals.  The Company and the Investor will
         use their  respective  reasonable best efforts to obtain as promptly as
         practicable  any  consent or  approval  of any  Person,  including  any
         regulatory  authority,  required in  connection  with the  transactions
         contemplated hereby.





                                      -19-
<PAGE>



                  (h)  Acknowledgments  Regarding  the  Advisors.  The  Investor
         acknowledges that the Advisors are acting as financial  advisors to the
         Company in connection with the Securities being offered hereby and will
         be compensated by the Company for acting in such capacity, as set forth
         in Schedule 3(y) hereto.  The Investor  further  acknowledges  that the
         Advisors  have acted  solely as  financial  advisors  to the Company in
         connection with the offering of the Securities by the Company, that the
         information and data provided to the Investor  relating to the Company,
         its  operations  and  financial  condition  have not been  subjected to
         independent verification by the Advisors, and that the Advisors make no
         representation or warranty with respect to the accuracy or completeness
         of such information,  data or other related disclosure  documents.  The
         Investor further acknowledges that in making its decision to enter into
         this  Agreement and purchase the  Securities,  it has relied on its own
         examination  of the  Company  and  the  terms  of,  and the  risks  and
         consequences of holding, the Securities.

         6.       Conditions to Closing.

                  (a) The  obligations of the Investor  hereunder at the Closing
         shall  be  subject  to the  performance  by  the  Company  of  all  its
         obligations  hereunder  to be performed on or prior to the Closing Date
         and to the satisfaction,  prior thereto or concurrently  therewith,  of
         the following conditions:

                           (i)    Representations     and    Warranties.     The
                  representations  and  warranties  of the Company  contained in
                  this Agreement  shall be true on and as of the Closing Date as
                  though such warranties and representations were made at and as
                  of such date, except as otherwise affected by the transactions
                  contemplated hereby.

                           (ii)  Compliance  with  Agreement.  The Company shall
                  have performed and complied with all agreements, covenants and
                  conditions  contained in this Agreement  which are required to
                  be  performed or complied  with by the Company  prior to or on
                  the Closing Date.

                           (iii) No Legislation or Injunction.  There shall have
                  been  adopted  no law or  regulation  and  there  shall  be no
                  effective injunction,  writ, preliminary  restraining order or
                  any  order  of any  nature  issued  by a  court  of  competent
                  jurisdiction  prohibiting the transactions provided for in the
                  Transaction Documents or any of them from being consummated as
                  herein provided.

                           (iv) Adverse  Developments.  There shall have been no
                  developments  in the  business  of the  Company  or any of its
                  Subsidiaries  which in the reasonable  opinion of the Investor
                  would have a Material Adverse Effect.

                           (v) Consents and  Approvals.  All filings,  consents,
                  waivers,  authorizations, licenses, permits,  certificates and
                  approvals of any Person required to have




                                      -20-
<PAGE>



                  been  made or  obtained  on or  prior to the  Closing  Date in
                  connection  with the  execution,  delivery and  performance of
                  this  Agreement,  all of which are set forth on Schedule  3(f)
                  hereto,  shall have been duly made or obtained and shall be in
                  full force and effect on the Closing Date.

                           (vi)  Officers'  Certificate.  The Company shall have
                  delivered  to the  Investor  a  certificate  of the  Company's
                  President and Chief Executive Officer, dated as of the Closing
                  Date,   certifying  that  the  conditions   specified  in  the
                  foregoing  Sections  6(a)(i)  through  (v)  hereof  have  been
                  fulfilled.

                           (vii)  Opinions of Counsel.  The Investor  shall have
                  received (a) from Ballem MacInnes,  counsel to the Company,  a
                  legal opinion,  dated as of the Closing Date, in substantially
                  the form of Exhibit D-1 hereto, and (b) from Carter, Ledyard &
                  Milburn, special United States counsel to the Company, a legal
                  opinion,  dated as of the Closing Date, in  substantially  the
                  form of Exhibit D-2 hereto;

                           (viii)  Secretary's  Certificate.  The Investor shall
                  have  received a  certificate,  dated the Closing Date, of the
                  Secretary  of the Company  attaching  (i) a true and  complete
                  copy of the  constating  documents  of the  Company,  with all
                  amendments  thereto,  (ii)  true and  complete  copies  of the
                  Company's   By-Laws   in  effect  as  of  such   date,   (iii)
                  certificates of good standing of the appropriate  officials of
                  the  jurisdictions  of  incorporation  of the Company and each
                  Subsidiary and of each  jurisdiction  in which the Company and
                  each  Subsidiary  is  qualified  to do  business  as a foreign
                  corporation,  (iv)  resolutions of the Board  authorizing  the
                  execution  and delivery of the  Transaction  Documents and the
                  transactions   contemplated   thereby,  the  issuance  of  the
                  Securities  and the  reservation  for issuance of a sufficient
                  number of Common  Shares  into  which  the  Securities  may be
                  converted or  exercised,  as the case may be, and (v) proof of
                  filing of the Articles of Amendment to designate  the Series A
                  Convertible Preferred Shares.

                           (ix) Approval of  Proceedings.  All proceedings to be
                  taken in connection with the transactions contemplated by this
                  Agreement,  and  all  documents  incident  thereto,  shall  be
                  reasonably  satisfactory in form and substance to the Investor
                  and its special  counsel,  Willkie Farr &  Gallagher;  and the
                  Investor shall have received  copies of all documents or other
                  evidence  which it and Willkie Farr & Gallagher may reasonably
                  request  in  connection  with  such  transactions  and  of all
                  records of corporate  proceedings  in connection  therewith in
                  form and substance reasonably satisfactory to the Investor and
                  Willkie Farr & Gallagher.

                           (x) Warrant  Agreement.  The Warrant  Agreement shall
                  have been executed and delivered.





                                      -21-
<PAGE>



                           (xi)  Shareholders'   Agreement.   The  Shareholders'
                  Agreement shall have been executed and delivered.

                           (xii) Recent Financial Statements.  The Company shall
                  have  provided  the  Investor  with its most recent  Quarterly
                  Report on Form 10-QSB filed with the Commission  subsequent to
                  the date of this Agreement.

                           (xiii) Filing of Convertible Shares Certificate.  The
                  Company  shall  have  filed or  caused  to be  filed  with the
                  Registrar  of  Corporations  of the  Province of Alberta  (the
                  "Registrar")  Articles  of  Amendment  to amend the  Company's
                  Articles  of   Incorporation   to   designate   the  Series  A
                  Convertible  Preferred  Shares,  such series to have the terms
                  set forth in Exhibit C, and such  Articles of Amendment  shall
                  have been accepted for filing by the Registrar.

                           (xiv)  Conditional  Approval  of  The  Alberta  Stock
                  Exchange.  The  conditional  approval  of  The  Alberta  Stock
                  Exchange   received  by  the  Company   with  respect  to  the
                  transactions  contemplated  hereby on November 20, 1997, shall
                  remain in effect  and  unamended  other  than with  respect to
                  confirmation  as to the  acceptability  of  the  anti-dilution
                  provisions set forth in the Warrant Agreement and the terms of
                  the  Convertible  Shares  attached  hereto as  Exhibit C. Such
                  conditional  approval  shall  specify the  following as to the
                  transactions  contemplated  hereby:  (A)  the  limitations  on
                  transfer  applicable to the  Securities  and the Common Shares
                  issuable  upon  conversion  or exercise of the  Securities  as
                  contemplated  in Section 5(d)  hereof;  (B) an expiry date for
                  the Warrants of not less than three (3) years from the date of
                  their issuance;  (C) confirmation of the  acceptability of the
                  anti-dilution  provisions  set forth in the Warrant  Agreement
                  and the terms of the Convertible Shares set forth in Exhibit C
                  (which may be included in a side  letter);  and (D) such other
                  terms as are customary in similar transactions.

                           (xv)  Antitrust  Approvals.  The waiting period under
                  the Hart-Scott Act and other applicable antitrust  regulations
                  of any  applicable  jurisdictions  shall have  expired or been
                  terminated.

                           (xvi)  Directors.  As of the Closing Date, the person
                  or persons  designated  by the  Investor  in  accordance  with
                  Section 4(c) hereof shall have been appointed to the Board.

                           (xvii) Employment  Agreements.  Employment agreements
                  by and  between  the  Company  and each of Brandon M.  Dawson,
                  Edwin J.  Kawasaki and Randall E.  Drullinger,  in forms to be
                  mutually  agreed  upon  in good  faith  by the  Investor,  the
                  Company  and  such  persons,  shall  have  been  executed  and
                  delivered.





                                      -22-
<PAGE>



                  (b) The  obligations  of the Company at the  Closing  shall be
         subject to the  performance  by the Investor of all of its  obligations
         hereunder  to be  performed  on or prior to the Closing Date and to the
         satisfaction, prior thereto or concurrently therewith, of the following
         conditions:

                           (i) Consents and  Approvals.  All filings,  consents,
                  waivers,  authorizations,  licenses, permits, certificates and
                  approvals of any Person required to have been made or obtained
                  on or  prior  to the  Closing  Date  in  connection  with  the
                  execution,  delivery and performance of this Agreement, all of
                  which are set forth on Schedule  3(f) hereto,  shall have been
                  duly made or obtained and shall be in full force and effect on
                  the Closing Date.

                           (ii) No Legislation  or Injunction.  There shall have
                  been  adopted  no law or  regulation  and  there  shall  be no
                  effective injunction,  writ, preliminary  restraining order or
                  any  order  of any  nature  issued  by a  court  of  competent
                  jurisdiction  prohibiting the transactions provided for in the
                  Transaction Documents or any of them from being consummated as
                  herein provided.

                           (iii)  General  Partner's  Certificate.  The Investor
                  shall  have  delivered  to the  Company a  certificate  of the
                  General Partner of the Investor, dated as of the Closing Date,
                  affirming the  continuing  accuracy as of the Closing Date, of
                  the  representations and warranties and the performance of all
                  agreements made by the Investor in this Agreement.

                           (iv)  Antitrust  Approvals.  The waiting period under
                  the Hart-Scott Act and other applicable antitrust  regulations
                  of any  applicable  jurisdictions  shall have  expired or been
                  terminated.

         7. Expenses of Sale. In the absence of a default by the Investor in the
performance of its  obligations  hereunder,  the Company shall pay, or reimburse
the Investor for all reasonable  out-of-pocket expenses incurred by the Investor
in  connection  with  this  transaction,   including  without  limitation,   the
reasonable fees and  disbursements  of its counsel in connection  herewith.  The
Company shall pay all finders' or brokers' fees or similar payments  incurred by
it in connection with the transactions  contemplated hereby,  including any fees
and payments payable to the Advisors.  The Investor represents and warrants that
it has not  incurred  any  liability  for,  and is unaware of any claim for, any
finders'  or  brokers'  fees  or  similar   payments  in  connection   with  the
transactions contemplated hereby.




                                      -23-
<PAGE>




         8.       Registration Rights.

                  (a) For the purpose of this Section 8, the term  "Registerable
         Shares"  shall  mean  (i)  the  Common  Shares  issuable  upon  (a) the
         conversion  of the  Convertible  Shares,  and (b) the  exercise  of the
         Warrants;  and  (ii) any  share  capital  of the  Company  issued  as a
         dividend or other  distribution  with respect to, or in exchange for or
         in replacement of, the Common Shares referred to in clause (i).

                  (b) At any time  subsequent  to 180 days  from the date of the
         Closing,  the  Investor  may  request,  in  writing,  that the  Company
         register all or part of the  Registerable  Shares issued,  or issuable,
         upon  conversion  of  the  Convertible  Shares  for  resale  under  the
         Securities Act. The Company will, as soon as practicable  after receipt
         of such request, prepare and file with the Commission, at the Company's
         own  expense,  a  registration   statement  under  the  Securities  Act
         sufficient to permit the public offering of all or such portion of such
         Common Shares as are  specified in such  request.  The Company will use
         its  reasonable  best efforts to cause such  registration  statement to
         become   effective  under  the  Securities  Act   (including,   without
         limitation,  the  execution of an  undertaking  to file  post-effective
         amendments,  appropriate  qualification  under  applicable  blue sky or
         other state securities laws and appropriate  compliance with applicable
         regulations   issued   under  the   Securities   Act)  as  promptly  as
         practicable.  The  Company  shall  only be  obligated  to file one such
         registration  statement  under this  Section  8(b)  provided  that such
         registration  statement  pursuant to this  Section 8(b) shall have been
         declared or ordered effective and the sales of such Common Shares shall
         have been closed.  However, if the sales of such Common Shares have not
         closed,  the Investor may  preserve its one demand  registration  right
         under  this  Section  8(b) by  paying  all the  Company's  Registration
         Expenses (as defined below)  associated  with the  registration of such
         Common Shares;  provided that such right may not be exercised  until 90
         days after the effective date of such registration statement.

                  (c) At any time  subsequent  to 180 days  from the date of the
         Closing,  the  Investor  may  request,  in  writing,  that the  Company
         register all or a part of the Common Shares issued,  or issuable,  upon
         exercise of the  Warrants  for resale  under the  Securities  Act.  The
         Company  will,  as soon as  practicable  after receipt of such request,
         prepare and file with the Commission,  at the Company's own expense,  a
         registration  statement  under the  Securities Act sufficient to permit
         the public offering of all or such portion of such Common Shares as are
         specified in such  request.  The Company will use its  reasonable  best
         efforts to cause such registration  statement to become effective under
         the Securities Act (including,  without limitation, the execution of an
         undertaking   to   file    post-effective    amendments,    appropriate
         qualification  under applicable blue sky or other state securities laws
         and appropriate compliance with applicable regulations issued under the
         Securities Act) as promptly as  practicable.  The Company shall only be
         obligated to file one such  registration  statement  under this Section
         8(c) provided that such registration statement




                                      -24-
<PAGE>



         pursuant  to this  Section  8(c)  shall have been  declared  or ordered
         effective  and the  sales of such  Common  Shares  shall  have  closed.
         However,  if the  sales of such  Common  Shares  have not  closed,  the
         Investor  may  preserve  its one demand  registration  right under this
         Section  8(c) by paying all the  Company's  Registration  Expenses  (as
         defined below)  associated with the registration of such Common Shares;
         provided  that such right may not be exercised  until 90 days after the
         effective date of such registration statement.

                  (d) If the Investor  intends to  distribute  the  Registerable
         Shares covered by its request pursuant to Section 8(b) or 8(c) by means
         of an  underwriting,  it shall so advise  the  Company as a part of its
         request made pursuant to Section 8(b) or 8(c).

                  If  holders  of   securities   of  the   Company   other  than
         Registerable  Shares who are entitled,  by contract with the Company or
         otherwise,  to have  securities  included in such a  registration  (the
         "Other Stockholders") request such inclusion,  the Investor shall offer
         to  include  the   securities  of  such  Other   Stockholders   in  the
         underwriting  and may condition  such offer on their  acceptance of the
         further  applicable  provisions of this Section 8. The Investor and the
         Company  shall  (together  with all  Other  Stockholders  proposing  to
         distribute their securities  through such  underwriting)  enter into an
         underwriting agreement in customary form with the representative of the
         underwriter  or  underwriters  selected  for such  underwriting  by the
         Investor and reasonably acceptable to the Company.  Notwithstanding any
         other  provision of this Section 8, if the  representative  advises the
         Investor in writing that marketing  factors require a limitation on the
         number of shares to be underwritten, the securities of the Company held
         by Other  Stockholders  shall be excluded from such registration to the
         extent so required by such limitation.  If, after the exclusion of such
         shares,  further  reductions are still  required,  the number of shares
         included in the  registration  by the Investor shall be reduced by such
         minimum  number of shares as is necessary to comply with such  request.
         No  Registerable  Shares  or any  other  securities  excluded  from the
         underwriting by reason of the underwriter's  marketing limitation shall
         be  included  in  such  registration.  If the  Investor  or  any  Other
         Stockholder who has requested inclusion in such registration  statement
         as provided above  disapproves of the terms of the  underwriting,  such
         person  may  elect to  withdraw  therefrom  by  written  notice  to the
         Company,  the  underwriter  and the  Investor,  and the  securities  so
         withdrawn  shall also be  withdrawn  from  registration.  If the person
         electing  such  withdrawal  is the  Investor,  then  the  demand  right
         exercised  under  Section  8(b) or 8(c) shall be  preserved  and may be
         exercised a second time if (A) the registration statement covering such
         underwriting  is  not  declared  or  ordered  effective,   or  (B)  the
         registration statement covering such underwriting is declared effective
         and  (i)  the  sale  of  at  least  500,000   Common  Shares  by  Other
         Stockholders  pursuant to such  underwriting  shall close,  or (ii) the
         Investor  pays all the  Company's  Registration  Expenses  (as  defined
         below)  associated  with the  registration of such Common Shares and 90
         days  shall  elapse  after  the  effective  date of  such  registration
         statement.   If  the   underwriter   has  not  limited  the  number  of
         Registerable  Shares to be  underwritten,  the  Company may include its
         securities   for  its  own   account  in  such   registration   if  the
         representative so agrees and if the number of




                                      -25-
<PAGE>



         Registerable  Shares which would  otherwise  have been included in such
         registration and underwriting will not thereby be limited.

                  (e) If at any time subsequent to 180 days from the date of the
         Closing,  the Company proposes to register any of its equity securities
         under the  Securities Act either for its own account or for the account
         of a security  holder or holders  exercising  their  respective  demand
         registration  rights,  (on a form  other  than Form S-4 or S-8 or their
         equivalents),  the Company  will (i)  promptly  notify the  Investor in
         writing (which  written  notice shall  include,  to the extent known, a
         list of the  jurisdictions  in which the Company  intends to attempt to
         qualify such  securities  under the applicable  blue sky or other state
         securities  laws) that such  registration  statement  will be filed and
         that the  Registerable  Shares which are then held by the Investor will
         be  included  in such  registration  statement  at its request and (ii)
         subject  to the  last  sentence  of this  subsection  (e),  cause  such
         registration  statement to cover all  Registerable  Shares which it has
         been so requested to include by the Investor,  provided such request is
         delivered  to the  Company  not later than 20 days after such notice is
         given to the Investor and specifies the number of  Registerable  Shares
         to be included in the proposed registration statement.  Notwithstanding
         the foregoing provisions,  if such registration statement relates to an
         underwritten  offering of Common  Shares and the  managing  underwriter
         shall  inform the Company and the Investor in writing that the managing
         underwriter  believes that the number of Common Shares  requested to be
         included in such  registration  statement  would  materially  adversely
         affect its  ability to effect  such  offering,  then the  Company  will
         include in such  registration  statement  the  number of Common  Shares
         which the  Company is so advised can be sold in (or during the time of)
         such offering as follows:  first, all shares proposed by the Company to
         be sold for its own account,  and,  second,  such  Registerable  Shares
         requested to be included in such  registration  statement,  pro rata by
         the Investor and other security holders exercising  registration rights
         on the basis of the  number of  Registerable  Shares  and other  Common
         Shares  so  proposed  to be sold  by the  Investor  and by  such  other
         security holders and so requested to be included.

                  (f)  In  connection  with  any  registration  statement  filed
         pursuant to this Section 8 (a  "Registration  Statement"),  the Company
         shall take such action as may be  necessary  to register or qualify the
         Registerable Shares registered  thereunder under the securities or Blue
         Sky laws of such  states of the United  States as shall  reasonably  be
         requested  by the  Investor,  and shall do any and all other acts which
         may be necessary  or  advisable  to permit the  proposed  sale or other
         disposition  of such  Registerable  Shares in any such state;  provided
         that in no event shall the Company be obligated in connection therewith
         to qualify as a foreign corporation in any jurisdiction where it is not
         already so  qualified,  or to execute a general  consent for service of
         process in suits other than those  arising out of the offer and sale of
         the Registerable  Shares,  or to take any action which would subject it
         to taxation in any jurisdiction where it is not then so subject.





                                      -26-
<PAGE>



                  (g) The Company's obligations under this Section 8 to register
         and qualify  Registerable  Shares shall be conditioned in each instance
         upon the timely  receipt by the  Company in writing of (i)  information
         from  the  Investor  as to the  proposed  plan of  distribution  of the
         Registerable Shares to be included in the Registration  Statement,  and
         (ii) such other information as the Company may reasonably  require from
         the Investor for inclusion in the Registration Statement.

                  (h) All Registration Expenses (as defined below) in connection
         with each  Registration  Statement (or seeking or obtaining the opinion
         of  counsel  to the  Company  under  Section  8(i) and,  if in the sole
         discretion of the Company deemed desirable,  any no-action  position of
         the  Commission  with  respect to sales  pursuant to Rule 144 under the
         Securities  Act), in complying with applicable  state  securities laws,
         and with any other qualification or compliance pursuant to this Section
         8, shall be borne by the  Company.  All  Selling  Expenses  (as defined
         below) shall be borne by the holders of the  securities  so  registered
         pro rata on the basis of the number of their shares so registered.  The
         Company at its expense will  furnish the  Investor  with copies of such
         Registration  Statement and the prospectus included therein and in such
         quantities  as  may  be  reasonably  requested  by  the  Investor.   In
         connection with each Registration Statement,  the Company shall furnish
         the  Investor  with  such  opinions  of  counsel,  comfort  letters  of
         accountants,  certificates  and such other documents that are customary
         in  connection  with   underwritten   public  offerings  and  that  are
         reasonably  requested by the Investor.  "Registration  Expenses"  shall
         mean all expenses  incurred by the Company in compliance  with Sections
         8(b)   through  (f)  hereof,   including,   without   limitation,   all
         registration and filing fees, printing expenses, fees and disbursements
         of counsel for the  Company,  fees and  expenses of one counsel for all
         the holders of Registerable  Shares in an amount not to exceed $15,000,
         blue  sky fees and  expenses  and the  expense  of any  special  audits
         incident to or required by any such  registration  (but  excluding  the
         compensation of regular  employees of the Company,  which shall be paid
         in any  event  by the  Company).  "Selling  Expenses"  shall  mean  all
         brokerage  fees,   underwriting   discounts  and  selling   commissions
         applicable to the sale of Registerable Shares.

                  (i) The Company  shall not be  required  by this  Section 8 to
         file any Registration  Statement relating to the Registerable Shares of
         the Investor if the Company  shall  furnish the Investor with a written
         opinion of  counsel  reasonably  satisfactory  to the  Investor  to the
         effect  that  the  proposed   public  offering  or  other  transfer  of
         Registerable  Shares as to which  registration  is  requested is exempt
         from the registration or  qualification  requirements of all applicable
         federal and state securities laws and would result in all purchasers or
         transferees  thereof  obtaining  securities  which are not  "restricted
         securities" as defined in Rule 144 under the Securities Act.

                  (j) If,  after  the date  hereof,  the  Company  grants to any
         person registration rights which are more favorable to such person than
         those afforded to the Investor under




                                      -27-
<PAGE>



         this Section 8, the Investor  shall without  further action be entitled
         to the benefits of such more favorable rights.

                  (k) Registration Procedures.  In the case of each registration
         effected by the Company  pursuant to this  Section 8, the Company  will
         keep  the  Investor,  as  applicable,  advised  in  writing  as to  the
         initiation of each registration and as to the completion thereof.
         At its expense, the Company will:

                           (i) keep such registration  effective for a period of
                  one  hundred  eighty  (180)  days or until  the  Investor  has
                  completed  the  distribution  described  in  the  registration
                  statement relating thereto,  whichever first occurs; provided,
                  however,  that in the case of any registration of Registerable
                  Shares on Form S-3  which  are  intended  to be  offered  on a
                  continuous  or delayed  basis,  such  180-day  period shall be
                  extended until all such Registerable Shares are sold, provided
                  that Rule 415, or any successor rule under the Securities Act,
                  permits an  offering on a  continuous  or delayed  basis,  and
                  provided  further that  applicable  rules under the Securities
                  Act  governing  the   obligation  to  file  a   post-effective
                  amendment permit, in lieu of filing a post-effective amendment
                  which (y) includes any prospectus required by Section 10(a) of
                  the   Securities   Act  or  (z)   reflects   facts  or  events
                  representing   a  material  or   fundamental   change  in  the
                  information  set  forth  in the  registration  statement,  the
                  incorporation  by  reference  of  information  required  to be
                  included  in (y) and (z)  above to be  contained  in  periodic
                  reports filed  pursuant to Section 13 or 15(d) of the Exchange
                  Act in the registration statement;

                           (ii)  furnish such number of  prospectuses  and other
                  documents  incident  thereto as the Investor from time to time
                  may reasonably request;

                           (iii)   notify  the  Investor  at  any  time  when  a
                  prospectus  relating thereto is required to be delivered under
                  the  Securities  Act of the happening of any event as a result
                  of  which  the  prospectus   included  in  such   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; and

                           (iv)  furnish,  on the date  that  such  Registerable
                  Shares are  delivered to the  underwriters  for sale,  if such
                  securities  are being sold  through  underwriters  or, if such
                  securities  are not being sold  through  underwriters,  on the
                  date that the  registration  statement  with  respect  to such
                  securities becomes effective, (1) an opinion, dated as of such
                  date, of the counsel representing the Company for the purposes
                  of such registration,  in form and substance as is customarily
                  given to underwriters  in an underwritten  public offering and
                  reasonably  satisfactory  to  the  Investor  addressed  to the
                  Investor  and (2) a letter,  dated as of such  date,  from the
                  independent  certified public  accountants of the Company,  in
                  form and substance




                                      -28-
<PAGE>



                  as  is  customarily  given  by  independent  certified  public
                  accountants to underwriters in an underwritten public offering
                  and reasonably  satisfactory to the Investor  addressed to the
                  underwriters,   if  any,  and  if   permitted  by   applicable
                  accounting standards, to the Investor.

                  (l) Rule 144  Reporting.  With a view to making  available the
         benefits of certain rules and  regulations of the Commission  which may
         permit  the  sale  of  restricted  securities  to  the  public  without
         registration, the Company agrees to:

                           (i) make and keep  public  information  available  as
                  those  terms are  understood  and  defined in Rule 144, at all
                  times from and after ninety (90) days  following the effective
                  date of the first  registration under the Securities Act filed
                  by the Company for an offering by it of its  securities to the
                  general public;

                           (ii) use its reasonable best efforts to file with the
                  Commission in a timely manner all reports and other  documents
                  required  of the  Company  under  the  Securities  Act and the
                  Exchange  Act at any time after it has become  subject to such
                  reporting requirements; and

                           (iii) so long as the Investor  owns any  Registerable
                  Shares,  furnish  to the  Investor  upon  request,  a  written
                  statement by the Company as to its compliance with the current
                  public information  requirements of Rule 144(c)(1),  a copy of
                  the most recent annual or quarterly report of the Company, and
                  such other  reports and documents so filed as the Investor may
                  reasonably   request  in  availing   itself  of  any  rule  or
                  regulation of the Commission allowing the Investor to sell any
                  such Securities without registration.

                  (m) The Company shall not be required to effect a registration
         pursuant  to  Section  8(b) or 8(c) if at the  time of any  request  to
         register Registerable Shares, the Company has filed or will file within
         60 days of the time of the request a registration  statement  under the
         Securities  Act with  respect  to a  public  offering  as to which  the
         Investor may include  Registerable Shares pursuant to Section 8(e). The
         Company  may, at its option,  direct that such request be delayed for a
         period not in excess of three  months from the  effective  date of such
         offering,  such right to delay a request to be exercised by the Company
         not more than once in any one-year period.

                  (n) Transfer of Registration Rights. The rights granted to the
         Investor to cause the Company to register securities under Section 8(b)
         or 8(c) may be assigned to a transferee or assignee in connection  with
         the sale or other transfer of at least 500,000  Registerable Shares (as
         appropriately  adjusted for any stock  splits,  consolidations,  or the
         like),  provided  that (i) such  transfer may  otherwise be effected in
         accordance with applicable  securities  laws, (ii) the Company is given
         reasonably  prompt  written  notice of such  assignment,  and (iii) the
         rights provided in each of Section 8(b) and Section 8(c)




                                      -29-
<PAGE>



         may be  exercised  only  once,  except as  otherwise  provided  in this
         Section 8, by either the Investor or a transferee.

         9.       Indemnification.

                  (a) In the event of the filing of any  Registration  Statement
         pursuant to Section 8 hereof,  the Company agrees to indemnify and hold
         harmless  the  Investor  and each  person,  if any,  who  controls  the
         Investor within the meaning of the Securities Act,  against any and all
         losses, claims, damages or liabilities, joint or several (including the
         costs of any  reasonable  investigation  and legal  and other  expenses
         incurred in connection  with, and any amount paid in settlement of, any
         action, suit or proceeding or any claim asserted) to which they, or any
         of them, may become subject under the Securities  Act, the Exchange Act
         or  other  federal  or  state  law  or  regulation,  at  common  law 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 a material fact contained in
         such Registration  Statement,  or any related  preliminary  prospectus,
         final prospectus,  or amendment thereof or supplement thereto, or arise
         out of or are based  upon any  omission  or alleged  omission  to state
         therein a material fact  required to be stated  therein or necessary to
         make the statements  therein, in light of the circumstances under which
         they were made, not  misleading;  provided,  however,  that the Company
         shall not be liable  under  this  Section  9(a) in any such case to the
         extent  that any such  losses,  claims,  damages or  liabilities  arise
         solely out of or are based upon an untrue  statement of a material fact
         contained in or any omission of a material fact from such  Registration
         Statement,   preliminary  prospectus,  final  prospectus  or  amendment
         thereof or supplement thereto in reliance upon, and in conformity with,
         information  furnished  in  writing  to the  Company  by  the  Investor
         specifically for use therein. This indemnity will be in addition to any
         liability which the Company may otherwise have.

                  (b) The  Investor  agrees to indemnify  and hold  harmless the
         Company,  each other person referred to in subparts (1), (2) and (3) of
         Section  11(a) of the  Securities  Act in respect of such  Registration
         Statement,  and each  person,  if any,  who controls the Company or any
         such  person  within the meaning of Section 15 of the  Securities  Act,
         against any and all losses,  claims,  damages or liabilities (including
         the costs of any reasonable  investigation and legal and other expenses
         incurred in connection  with, and any amount paid in settlement of, any
         action, suit or proceeding or any claim asserted) to which they, or any
         of them, may become subject under the Securities  Act, the Exchange Act
         or other federal, provincial or state law or regulation, at common law,
         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 a  material  fact
         contained in such Registration  Statement,  or any related  preliminary
         prospectus,   final  prospectus  or  amendment  thereof  or  supplement
         thereto,  or arise out of or are based  upon any  omission  or  alleged
         omission to state therein a material fact required to be stated therein
         or  necessary  to  make  the  statements   therein,  in  light  of  the
         circumstances under




                                      -30-
<PAGE>



         which they were made, not misleading,  in each case to the extent,  but
         only to the extent,  that such untrue statement or omission was made in
         such Registration Statement,  preliminary prospectus,  final prospectus
         or amendment  thereof or supplement  thereto in reliance  upon,  and in
         conformity with, information furnished in writing to the Company by the
         Investor  specifically  for use therein;  provided,  however,  that the
         obligations  of the  Investor  hereunder  shall be limited to an amount
         equal  to the net  proceeds  to it from  sales  of  securities  sold as
         contemplated herein; and provided further,  that this indemnity,  as to
         any  preliminary  prospectus,  shall  not inure to the  benefit  of the
         Investor  (or any person  controlling  the  Investor) on account of any
         loss, claim,  damage,  liability or litigation arising from the sale of
         Registerable  Shares to any person by the Investor if it failed to send
         or give a copy of any subsequent prospectus or prospectus supplement to
         such person  within the time  required by the  Securities  Act, and the
         untrue  statement  or alleged  untrue  statement or omission or alleged
         omission  of  a  material  fact  in  such  preliminary  prospectus  was
         corrected in the subsequent prospectus or prospectus  supplement.  This
         indemnity  agreement  will be in  addition to any  liability  which the
         Investor may otherwise have.

                  (c)  Any  party  that  proposes  to  assert  the  right  to be
         indemnified  under  this  Section 9 shall,  promptly  after  receipt of
         notice of the  commencement of any action,  suit or proceeding  against
         such  party  in  respect  of  which a claim  is to be made  against  an
         indemnifying  party or parties  under this  Section 9, notify each such
         indemnifying party of the commencement thereof, enclosing a copy of all
         papers served. No indemnification  provided for in Section 9(a) or 9(b)
         shall be  available  to any  party  who  shall  fail to give  notice as
         provided  in this  Section  9(c),  provided  that  the  failure  of any
         indemnified  party to give notice as provided  herein shall not relieve
         the indemnifying  party of its obligations  under this Section 9 unless
         the  indemnifying  party was  unaware of the  proceeding  to which such
         notice would have related and was materially  prejudiced by the failure
         to give such notice and  provided  that the  omission so to notify such
         indemnifying  party of any such action,  suit or  proceeding  shall not
         relieve it from any liability that it may have to any indemnified party
         other than under this  Section 9 or Section 10 below.  In case any such
         action, suit or proceeding is brought against any indemnified party and
         it notifies the indemnifying  party of the commencement  thereof,  such
         indemnifying  party will be  entitled  to  participate  in, and, to the
         extent  that it may wish,  jointly  with any other  indemnifying  party
         similarly  notified,   to  assume  the  defense  thereof  with  counsel
         reasonably  satisfactory to such indemnified  party,  and, after notice
         from the indemnifying  party to such indemnified  party of its election
         so to assume the defense  thereof and the  approval by the  indemnified
         party of such counsel (which shall not be unreasonably  withheld),  the
         indemnifying  party shall not be liable to such  indemnified  party for
         any legal or other  expenses,  except as provided  below and except for
         the reasonable  costs of  investigation  subsequently  incurred by such
         indemnified   party  in  connection  with  the  defense  thereof.   The
         indemnified  party  shall have the right to employ  its  counsel in any
         such  action,  suit or  proceeding  but the fees and  expenses  of such
         counsel  shall be at the expense of such  indemnified  party unless (i)
         the employment of counsel by such indemnified party has




                                      -31-
<PAGE>



         been  authorized  in  writing  by the  indemnifying  parties,  (ii) the
         indemnified  party shall have  reasonably  concluded  that there may be
         differing or additional defenses available to it and not to one or more
         of the indemnifying  parties in such action, suit or proceeding so that
         it would be inappropriate for counsel to represent both the indemnified
         party  and  the  indemnifying  party  in view of  actual  or  potential
         conflicts of interest (in which case if such indemnified party notifies
         the  indemnifying  party in writing  that it elects to employ  separate
         counsel at the  expense of the  indemnifying  party,  the  indemnifying
         party  shall not have the right to assume the  defense of such  action,
         suit or proceeding on behalf of such indemnified  party);  or (iii) the
         indemnifying  parties  shall not have  employed  counsel  to assume the
         defense of such action  within a  reasonable  time after  notice of the
         commencement  thereof,  in each of which cases the fees and expenses of
         the  indemnified  party's  counsel  shall  be at  the  expense  of  the
         indemnifying   parties,   it  being  understood,   however,   that  the
         indemnifying  party shall not, in connection  with any one such action,
         suit or  proceeding  or separate but  substantially  similar or related
         actions,  suits or proceedings in the same jurisdiction  arising out of
         the same  general  allegations  or  circumstances,  be  liable  for the
         reasonable  fees  and  expenses  of  more  than  one  separate  firm of
         attorneys for the Investor and its controlling persons. An indemnifying
         party  shall not be liable  for any  settlement  of any  action,  suit,
         proceeding or claim effected without its written consent.

         10.   Contribution.   In  order  to  provide  for  just  and  equitable
contribution  in  circumstances  in which the  indemnification  provided  for in
Section 9 is due in  accordance  with its terms but for any reason is held to be
unavailable or insufficient to hold harmless an indemnified  party,  the Company
on the  one  hand  and  the  Investor  on the  other  hand  shall,  in  lieu  of
indemnifying such indemnified party, contribute to the aggregate losses, claims,
damages  or  liabilities  referred  to in  Section  9  (including  costs  of any
investigation  and legal and other  expenses  reasonably  incurred in connection
therewith,  and any amount paid in settlement of, any action, suit or proceeding
or any claims  asserted),  in such  proportions as is appropriate to reflect the
relative fault of the Company and the Investor in connection with the statements
or omissions  which  resulted in such losses,  claims,  damages,  liabilities or
expenses, as well as any other relevant equitable  considerations.  The relative
fault of the Company and the Investor shall be determined by reference to, among
other things,  whether the untrue or alleged untrue statement of a material fact
or omission related to information  supplied by the Company  (including for this
purpose information supplied by any officer, director,  employee or agent of the
Company) or to written  information  furnished to the Company by or on behalf of
the  Investor  specifically  for  use in  the  preparation  of the  Registration
Statement  or any  amendment  thereof or  supplement  thereto,  and the parties'
relative intent, knowledge,  access to information and opportunity to correct or
prevent such  statement  or omission.  Notwithstanding  the  provisions  of this
Section 10 in no case shall the Investor be liable or responsible for any amount
in  excess  of the  proceeds  received  by the  Investor  from  the  sale of the
Registerable Shares included in the Registration Statement,  provided,  however,
that no person  guilty of  fraudulent  misrepresentation  (within the meaning of
Section 11(f) of the Securities Act) shall be entitled to contribution  from any
person who was not guilty of such fraudulent misrepresentation.  For purposes of
this Section 10, each person, if any,




                                      -32-
<PAGE>



who controls the Investor within the meaning of Section 15 of the Securities Act
or Section 20(a) of the Exchange Act shall have the same rights to  contribution
as the Investor,  and each person,  if any, who controls the Company  within the
meaning of the Section 15 of the Securities Act or Section 20(a) of the Exchange
Act, each director of the Company and each officer of the Company who shall have
signed the Registration  Statement shall have the same rights to contribution as
the Company,  subject to the immediately  preceding sentence of this Section 10.
Any party  entitled to  contribution  will,  promptly after receipt of notice of
commencement of any action,  suit or proceeding against such party in respect of
which a claim for  contribution  may be made  against  another  party or parties
under this Section 10, notify such party or parties from whom  contribution  may
be  sought,  and the  omission  so to notify  such  party or  parties  from whom
contribution  may be  sought  shall  relieve  the  party or  parties  from  whom
contribution  may be sought (if such party was unaware of such action,  suit, or
proceeding  and was  materially  prejudiced by such omission) from any liability
under this  Section  10, but not from any other  obligation  it or they may have
hereunder  or other  than under this  Section  10. No party  shall be liable for
contribution with respect to the settlement of any action,  suit,  proceeding or
claim effected without its written  consent.  The obligations of the Investor to
contribute  pursuant  to  this  Section  10 are  several  in  proportion  to its
respective number of Registerable Shares included in the Registration  Statement
and not joint.  Notwithstanding the foregoing, to the extent that the provisions
on  indemnification  and contribution  contained in the  underwriting  agreement
entered into in connection with any underwritten public offering contemplated by
this Agreement are in conflict with the foregoing provisions,  the provisions in
such underwriting agreement shall be controlling.

         11.  Notices.  Any notice  hereunder  shall be in writing  and shall be
effective  when  delivered  in person  or by  facsimile  transmission,  or seven
business  days after being  mailed by  certified  or  registered  mail,  postage
prepaid,  return receipt  requested,  to the appropriate  party at the following
addresses:

If to the Investor:

                  Warburg Pincus Ventures, L.P.
                  466 Lexington Avenue
                  New York, New York 10017-3147
                  Facsimile: 212-878-9351
                  Attention:  Mr. Joel Ackerman

with a copy to:

                  Willkie Farr & Gallagher
                  153 E. 53rd Street
                  New York, New York 10022
                  Facsimile: 212-821-8111
                  Attention:  Steven J. Gartner, Esq.




                                      -33-
<PAGE>



If to the Company:

                  HealthCare Capital Corp.
                  111 SW Fifth Avenue, Suite 2390
                  Portland, Oregon 97204
                  Facsimile: 503-225-9309
                  Attention:  Mr. Brandon M. Dawson

with a copy to:

                  Carter, Ledyard & Milburn
                  2 Wall Street
                  New York, New York  10005
                  Facsimile:  212-732-3232
                  Attention:  John K. Whelan, Esq.

         12. Parties. This Agreement will inure to the benefit of and be binding
upon the Investor, the Company and their respective successors and assigns. This
Agreement  is intended to be, and is for the sole and  exclusive  benefit of the
parties hereto and the other indemnified  parties described in Sections 9 and 10
hereof and their  respective  successors and assigns,  and for the benefit of no
other person, and no other person will have any legal or equitable right, remedy
or claim under, or in respect of this  Agreement.  Except as provided in Section
4(c) and Section 8(n) hereof,  no  purchaser  of any of the  Securities  will be
construed as a successor  or assign of the Investor  entitled to any benefits of
this Agreement, merely by reason of such purchase.

         13.  Termination  and Survival.  Unless the Closing has occurred  prior
thereto  or  simultaneously  herewith,  this  Agreement  and,  except  as herein
provided,  all the rights of the parties hereto,  shall terminate on January 16,
1998  (unless  such date is  extended  by  mutual  written  consent);  provided,
however,  that this date may be  extended  unilaterally  by the  Company  or the
Investor to March 31, 1998 if all required  regulatory  approvals  have not been
obtained by January 16, 1998.  Notwithstanding  the foregoing,  Section 7 hereof
shall   survive   the   termination   of   this   Agreement.   All   warranties,
representations, and covenants made by the Investor and the Company herein or in
any  certificate  or other  instrument  delivered by the Investor or the Company
under this Agreement shall be considered to have been relied upon by the Company
or the  Investor,  as the case may be, and shall  survive all  deliveries to the
Investor  of the  Securities,  or payment to the  Company  for such  Securities,
regardless of any investigation made by the Company or the Investor, as the case
may be, or on the Company's or the Investor's behalf. All statements in any such
certificate or other instrument shall constitute  warranties and representations
by the Company or the Investor, as the case may be, hereunder.

         14. Amendment and Modification. Neither this Agreement, nor any term or
provision  hereof,  may be changed,  waived,  discharged,  amended,  modified or
terminated in any manner other than by an  instrument in writing  signed by each
of the parties hereto.




                                      -34-
<PAGE>



         15. Further  Assurances.  Each party to this Agreement will perform any
and all acts and execute any and all  documents as may be  necessary  and proper
under the  circumstances  in order to accomplish the intent and purposes of this
Agreement  and to carry  out its  provisions.  Each  such  party  shall  use its
reasonable  efforts  to  fulfill or obtain  the  fulfillment  of the  respective
conditions to the Closing as promptly as practicable.

         16.  Waiver of Breach.  The failure of any party  hereto to insist upon
strict  performance of any of the covenants and agreements herein contained,  or
to exercise any option or right herein  conferred in any one or more  instances,
will not be  construed  to be a waiver or  relinquishment  of any such option or
right, or of any other covenants or agreements,  and the same will be and remain
in full force and effect.

         17. Entire Agreement.  This Agreement contains the entire agreement and
understanding  of the parties with respect to the entire  subject matter hereof,
and there are no representations,  inducements,  promises or agreements, oral or
otherwise,  not embodied herein.  Any and all prior  discussions,  negotiations,
commitments and understandings  relating thereto,  including without limitation,
that  certain Term Sheet dated  October 22, 1997 and accepted  October 31, 1997,
between  the Company  and the  Investor,  are  superseded  hereby.  There are no
conditions precedent to the effectiveness of this Agreement other than as stated
herein,  and there are no related  collateral  agreements  existing  between the
parties that are not referred to herein.

         18. Severability. In the event that any part or parts of this Agreement
shall be held illegal or  unenforceable by any court or  administrative  body of
competent  jurisdiction,  such  determination  shall not  affect  the  remaining
provisions of this Agreement which shall remain in full force and effect.

         19. Limitation on Enforcement of Remedies.  Without in any way limiting
its rights  against  the  Investor or its general  partner,  the Company  hereby
agrees that it will not assert against the limited  partners of the Investor any
claim it may have  under  this  Agreement  by reason of any  failure  or alleged
failure by the Investor to meet its obligations hereunder.

         20.  Counterparts.  This Agreement may be executed in counterparts  and
each of such counterparts will for all purposes be deemed to be an original, and
such counterparts will together constitute one and the same instrument.

         21. Law. This  Agreement will be deemed to have been made and delivered
in  New  York  City  and  will  be  governed  as  to  validity,  interpretation,
construction, effect and in all other respects by the internal laws of the State
of New York.  The Company (a) agrees that any legal suit,  action or  proceeding
arising out of or relating to this  Agreement  may be  instituted in the Supreme
Court of the State of New York,  County of New  York,  or in the  United  States
District  Court for the Southern  District of New York, (b) waives any objection
which the  Company  may have now or  hereafter  to the  venue of any such  suit,
action or proceeding,  and (c) irrevocably  consents to the  jurisdiction of the
Supreme Court of the State of New York, County of New




                                      -35-
<PAGE>



York, and the United States District Court for the Southern District of New York
in any such suit, action or proceeding. The Company further agrees to accept and
acknowledge service of any and all process which may be served in any such suit,
action or  proceeding in such courts and agrees that service of process upon the
Company  mailed by  certified  mail to the  Company's  address will be deemed in
every respect effective  service of process upon the Company,  in any such suit,
action or proceeding.


                     [This space intentionally left blank.]






                                      -36-
<PAGE>



         IN WITNESS WHEREOF,  the Company and the Investor have each caused this
Agreement  to be executed by its duly  authorized  officer,  each as of the date
first above written.


                                  HEALTHCARE CAPITAL CORP.



                                  By:  /s/ Brandon M. Dawson
                                       Name:   Brandon M. Dawson
                                       Title:  President and Chief 
                                               Executive Officer



                                  WARBURG PINCUS VENTURES, L.P.
                                  By: Warburg, Pincus & Co.,
                                      General Partner



                                  By: /s/ Patrick T. Hackett
                                       Name: Patrick T. Hackett
                                       Title: Managing Director




                                      -37-

<PAGE>



                                                                 EXHIBIT A


                            HEALTHCARE CAPITAL CORP.


                                WARRANT AGREEMENT


                  Warrants to Purchase 10,000,000 Common Shares


         THIS WARRANT AGREEMENT (this  "Agreement") dated as of January __, 1998
is made and entered into by and between  HealthCare Capital Corp., a corporation
organized under the laws of Alberta, Canada (the "Company"),  and Warburg Pincus
Ventures, L.P., a Delaware limited partnership (the "Warrantholder").

         Subject to the terms and conditions hereof, the Company agrees to issue
to the  Warrantholder,  pursuant to a Securities  Purchase Agreement dated as of
November  21,  1997,  by and  between the  Company  and the  Warrantholder  (the
"Securities Purchase  Agreement"),  warrants,  as hereinafter  described and the
form of which is attached hereto as Exhibit 1 (the  "Warrants"),  to purchase up
to an aggregate of  10,000,000  common  shares  without par value of the Company
(the  "Common  Shares"),  at a Warrant  Price of U.S.  $2.40 per  Common  Share,
subject to adjustment  pursuant to Section 6 hereof. As used herein (i) the term
"Shares" shall mean,  unless the context  otherwise  requires,  collectively the
Common Shares  issuable  upon  exercise of the Warrants  together with any other
securities or other property  issuable upon such exercise as provided in Section
6 of this Agreement; (ii) the term "Warrants" shall include any and all warrants
outstanding  pursuant  to  this  Agreement,   including  those  evidenced  by  a
certificate  or  certificates  issued upon  division,  exchange or  substitution
pursuant to this  Agreement;  and (iii) the term "Warrant  Price" shall mean the
price per Share at which Shares shall at any time be  purchasable  upon exercise
of the Warrants.  Terms which are  capitalized but not defined herein shall have
the same meanings as in the Securities  Purchase  Agreement.  Any amounts herein
referencing  share prices or numbers of shares  shall be subject to  appropriate
adjustments in the event of any stock splits, consolidations or the like.

         For the purpose of defining  the terms and  provisions  of the Warrants
and the  respective  rights and  obligations  thereunder,  the  Company  and the
Warrantholder, for value received, hereby agree as follows:




                                       A-1

<PAGE>



         Section 1. Restrictions on Transfer and Form of Warrants.

         1.1.  Registration.  Certificates  evidencing  the  Warrants  shall  be
numbered and shall be  registered  on the books of the Company  when issued,  in
accordance with Alberta corporate practice.

         1.2. Restriction on Transfer of the Warrants. The Warrants shall not be
transferable  and  may  not  be  sold,   assigned,   hypothecated  or  otherwise
transferred  by the  Warrantholder  without the express  written  consent of the
Company, such consent not to be unreasonably  withheld. Any transferee permitted
under this Section 1.2 shall acquire title to such  transferred  Warrants and to
all rights represented thereby.

         1.3. Form of Warrants.  The form of certificate evidencing the Warrants
shall be substantially as set forth in Exhibit 1 hereto. Certificates evidencing
the Warrants  shall be executed on behalf of the Company by its  President or by
any Vice  President,  shall be attested  to by its  Secretary  or any  Assistant
Secretary, and shall be dated as of the date of execution thereof.

         1.4.  Legends on Warrants  and Common  Shares.  The  Warrants,  and the
Shares issuable upon the exercise  thereof,  have not been registered  under the
Securities Act of 1933, as amended (the "Securities  Act"). Each certificate for
the Warrants shall bear the following legend:

                  "THE WARRANTS REPRESENTED BY THIS CERTIFICATE,  AND THE COMMON
                  SHARES ISSUABLE UPON EXERCISE OF SUCH WARRANTS,  HAVE NOT BEEN
                  REGISTERED  UNDER THE UNITED STATES  SECURITIES ACT OF 1933 OR
                  THE  SECURITIES  LAWS OF ANY STATE OF THE UNITED STATES OR ANY
                  PROVINCE OF CANADA. SUCH WARRANTS MAY NOT BE SOLD, OFFERED FOR
                  SALE,   ASSIGNED,   EXCHANGED,   PLEDGED  OR  HYPOTHECATED  OR
                  OTHERWISE  TRANSFERRED,  IN ANY MANNER, AND SUCH COMMON SHARES
                  MAY NOT BE OFFERED FOR SALE, SOLD,  PLEDGED OR HYPOTHECATED OR
                  TRANSFERRED IN THE ABSENCE OF SUCH  REGISTRATION OR AN OPINION
                  OF COUNSEL,  REASONABLY  SATISFACTORY TO THE COMPANY,  THAT AN
                  EXEMPTION FROM SUCH  REGISTRATION  IS AVAILABLE.  THE WARRANTS
                  REPRESENTED  BY THIS  CERTIFICATE  MAY NOT BE TRADED IN CANADA
                  EXCEPT AS PERMITTED BY RELEVANT CANADIAN SECURITIES LAWS."



                                       A-2

<PAGE>




Each certificate for the Shares shall bear the following legend:

                  "THE COMMON SHARES  REPRESENTED BY THIS  CERTIFICATE  HAVE NOT
                  BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT OF 1933
                  OR THE  SECURITIES  LAWS OF ANY STATE OF THE UNITED  STATES OR
                  ANY  PROVINCE  OF  CANADA  AND  MAY  NOT  BE  SOLD,  ASSIGNED,
                  EXCHANGED  OR  OTHERWISE  TRANSFERRED,  IN THE ABSENCE OF SUCH
                  REGISTRATION OR AN OPINION OF COUNSEL, REASONABLY SATISFACTORY
                  TO THE COMPANY,  THAT AN EXEMPTION FROM SUCH  REGISTRATION  IS
                  AVAILABLE THIS  CERTIFICATE MAY NOT CONSTITUTE 'GOOD DELIVERY'
                  IN SATISFACTION OF A TRADE MADE ON A STOCK EXCHANGE IN CANADA.
                  THIS CERTIFICATE IS NOT TRANSFERABLE IN CANADA UNTIL [THE DATE
                  SIX  MONTHS  FROM THE  CLOSING  DATE]  EXCEPT  PURSUANT  TO AN
                  EXEMPTION  FROM THE PROSPECTUS  REQUIREMENTS  CONTAINED IN THE
                  APPLICABLE SECURITIES LEGISLATION."

         Any certificate  issued at any time in exchange or substitution for any
certificate bearing such legend (except a new certificate issued upon completion
of  a  public  distribution  pursuant  to a  registration  statement  under  the
Securities Act of the Common Shares represented  thereby) shall also bear a like
legend unless, in the opinion of counsel reasonably satisfactory to the Company,
the  securities   represented   thereby  need  no  longer  be  subject  to  such
restrictions.

          Section 2. Term of Warrants; Exercise of Warrants.

         (a) Subject to the terms of this  Agreement,  the  Warrantholder  shall
have the right,  at any time and from time to time during the period  commencing
at 9:00 a.m., Pacific Time, on January __, 1998, (the  "Commencement  Date") and
ending at 5:00 p.m.,  Pacific Time, on the third anniversary of the Commencement
Date (the  "Termination  Date") to purchase from the Company up to the number of
fully paid and  nonassessable  Shares which the Warrantholder may at the time be
entitled to purchase  pursuant to this Agreement,  upon surrender to the Company
at its  principal  office of the  certificates  evidencing  the  Warrants  to be
exercised,  with the purchase  form, in the form  attached  hereto as Exhibit 2,
duly  completed  and signed,  and upon  payment to the Company of an amount (the
"Exercise  Payment")  equal to the  Warrant  Price  multiplied  by the number of
Shares being purchased pursuant to such exercise,  payable in cash, by certified
or  official  bank  check,  or by  wire  transfer.  The  Company  shall  use its
reasonable best efforts prior to the  Termination  Date to obtain any applicable
regulatory  approvals of those regulatory  agencies having jurisdiction over the
Company in order to extend the Termination Date



                                       A-3

<PAGE>



for a further  period  of two  years,  in which  event  the  Company's  right of
purchase  under this Section 2(a) shall end at 5:00 p.m.,  Pacific  Time, on the
fifth anniversary of the Commencement Date.

         (b) At any time subsequent to the first anniversary of the Commencement
Date, in lieu of exercising the Warrants as provided in Section 2(a) above,  and
subject  to  all  applicable  law  and  all  applicable   regulatory  approvals,
limitations and restrictions,  the  Warrantholder may elect to receive,  without
any cash payment, a number of Shares equal to the value (as determined below) of
any or all of the Warrants held of record by the  Warrantholder,  upon surrender
to the  Company at its  principal  office of the  certificates  evidencing  such
Warrants,  with the attached cashless exercise form attached hereto as Exhibit 3
duly  completed  and  signed,  in which  event the  Company  shall  issue to the
Warrantholder a number of Shares computed using the following formula:

                    X    = Y(A-B)/A

where

                    X    = the number of Common Shares to be issued  pursuant to
                           this Section 2(b).

                    Y    = the number of Common Shares issuable upon exercise of
                           the surrendered Warrants.

                    A    = the average of the Market Prices of the Common Shares
                           for  the  sixty  (60)   calendar   days   immediately
                           preceding  the  date  upon  which  the   certificates
                           evidencing the  surrendered  Warrants are received by
                           the Company at its principal office.

                    B    = the Warrant Price on such date.

         For all purposes of this  Agreement,  the term "Market Price" as of any
specified  date shall mean:  (i) if the Common Shares are listed or admitted for
trading on one or more United States national  securities  exchanges,  the daily
closing  price for the Common  Shares on the  principal  exchange  in the United
States on which the Common Shares are listed;  (ii) if the Common Shares are not
listed  or  admitted  for  trading  on any  United  States  national  securities
exchange,  the daily closing price for the Common Shares on the Nasdaq  National
or Nasdaq Small-Cap Market ("Nasdaq"); (iii) if the Common Shares are not listed
or admitted for trading on a United States  national  securities  exchange or on
Nasdaq,  the daily closing  price of the Common  Shares on the  principal  stock
exchange in Canada on which the Common  Shares are listed  (expressed  in United
States  dollars  based  upon the noon  buying  rate in New York  City for  cable
transfers in Canadian  dollars as certified for customs  purposes by the Federal
Reserve Bank of New York); (iv) if the



                                       A-4

<PAGE>



Common  Shares are not  listed or  admitted  to  trading  on any  United  States
national or Canadian national  securities  exchange or on Nasdaq, the average of
the reported bid and asked prices on the trading day preceding  such date in the
over-the-counter market as furnished by the National Quotation Bureau, Inc., or,
if such firm is not then engaged in the business of  reporting  such prices,  as
furnished by any member of the National Association of Securities Dealers,  Inc.
selected by the Company;  or (v) if the Common  Shares are not publicly  traded,
the Market Price for such day shall be the fair market value thereof  determined
jointly by the Company and the Warrantholder;  provided,  however,  that if such
parties are unable to reach  agreement  within a reasonable  period of time, the
Market  Price shall be  determined  in good faith by an  independent  investment
banking firm selected jointly by the Company and the  Warrantholder  or, if that
selection  cannot  be made  within  an  additional  15 days,  by an  independent
investment  banking firm  selected by the American  Arbitration  Association  in
accordance with its rules.

         If the  Warrantholder  elects to exercise the Warrants pursuant to this
Section  2(b),  the  Warrantholder  shall  simultaneously  convert  all Series A
Convertible  Preferred  Shares of the Company (the  "Convertible  Shares")  then
owned by the Warrantholder into Common Shares.

         In the event that the  Warrantholder  elects to exercise  the  Warrants
pursuant  to this  Section  2(b),  and the  average  Market  Price of the Common
Shares,  as defined above,  for the 60 calendar days  immediately  preceding the
date on which the certificates  evidencing the surrendered Warrants are received
by the Company at its principal  office,  is greater than U.S.  $3.20,  then the
right to a cashless  exercise  of  Warrants  shall be limited to such  number of
Warrants as would result in the issuance of 2,500,000  Shares and any  remaining
Warrants to be exercised by the Warrantholder  shall be exercised,  at such time
or times  elected by the  Warrantholder,  in accordance  with the  provisions of
Section  2(a).  Such per  share  amount  of U.S.  $3.20  shall be  appropriately
adjusted for any stock splits, consolidations or the like.

                  (c) The Company may, at any time,  elect to force the exercise
of the  Warrants  by the  Warrantholder  subject to the terms of this  Agreement
provided that the Company shall have  satisfied all of the following  conditions
prior to the date of such election by the Company:

                  (i)  the  Common  Shares  are  listed  on the New  York  Stock
         Exchange, the American Stock Exchange or the Nasdaq National Market;

                  (ii) the  Common  Shares  are  traded  on the New  York  Stock
         Exchange,  the American Stock Exchange or the Nasdaq National Market at
         a Market Price greater than U.S. $2.40 per share for the 10 consecutive
         trading days immediately preceding the date of such election; and

                  (iii) The  Company's net income  (excluding  profit or loss on
         disposal  of a  significant  part of the  Company's  assets or separate
         segment thereof,  gains on restructuring  payables,  gains or losses on
         the extinguishment of debt, expropriations of property, gains or losses
         that are the direct result of a major casualty, or one-time losses



                                       A-5

<PAGE>



         resulting from  prohibitions  under a newly-enacted  law or regulation)
         for the three  consecutive  fiscal quarters ended  immediately prior to
         the date of such election, as reported in or derived from its quarterly
         or annual reports filed with the  Securities  and Exchange  Commission,
         before  income  taxes,   dividends  on  the   Convertible   Shares  and
         amortization  of  goodwill  and  covenants  not  to  compete  for  such
         quarterly  periods,  shall have averaged at least U.S.  $0.07 per fully
         diluted Common Share per fiscal  quarter,  provided,  however,  that in
         making such  calculation,  the Common Shares  issuable upon exercise of
         the Warrants  shall be excluded  but Common  Shares  issuable  upon the
         conversion of the Convertible Shares shall not.

The foregoing  conditions (i), (ii) and (iii) shall  hereinafter be collectively
referred to as the "Triggering  Conditions." All references to per share amounts
or prices  with  respect to the  Triggering  Conditions  shall be  appropriately
adjusted for any stock splits, consolidations or the like.

         The  Company  shall  give the  Warrantholder  written  notice  that the
Triggering  Conditions have been satisfied and that the Company intends to force
the exercise of the Warrants.  In this event,  the Termination Date shall be the
date ten (10) business days after such notice shall be effectively  delivered to
the Warrantholder as provided in Section 10 of this Agreement.

         In the event of a forced exercise of Warrants  pursuant to this Section
2(c), in lieu of exercising the Warrants as provided in Section 2(a) above,  and
subject  to  all  applicable  law  and  all  applicable   regulatory  approvals,
limitations and restrictions,  the  Warrantholder may elect to receive,  without
any cash payment, a number of Shares equal to the value (as determined below) of
any or all of the Warrants held of record by the  Warrantholder,  upon surrender
to the  Company at its  principal  office of the  certificates  evidencing  such
Warrants,  with the attached  cashless  exercise form thereof duly completed and
signed,  in which event the Company shall issue to the holder a number of Shares
computed using the formula set forth in Section 2(b) except the term "A" in such
formula, the Market Price of the Common Shares, shall be calculated based on the
ten (10) trading days  immediately  preceding the date on which the certificates
evidencing the surrendered Warrants are received by the Company at its principal
offices.

         In the event that the  Warrantholder  elects to exercise  the  Warrants
without any cash payment  following a forced  exercise  pursuant to this Section
2(c), and the average Market Price of the Common Shares,  as defined above,  for
the 60 calendar days  immediately  preceding the date on which the  certificates
evidencing the surrendered Warrants are received by the Company at its principal
office,  is greater than U.S.  $3.20,  then the right to a cashless  exercise of
Warrants  shall be limited to such  number of  Warrants  as would  result in the
issuance of 2,500,000  Shares and any remaining  Warrants to be exercised by the
Warrantholder  shall  be  exercised,  at  such  time  or  times  elected  by the
Warrantholder, in accordance with the provisions of Section 2(a). Such per share
amount of U.S.  $3.20  shall be  appropriately  adjusted  for any stock  splits,
consolidations or the like.




                                       A-6

<PAGE>



         (d) Upon the  surrender  of  Warrant  certificates  and  payment of the
Exercise  Payment  (in cash,  except in the event of a cashless  exercise),  the
Company,  at its  expense,  shall  issue  and  cause  to be  delivered  with all
reasonable  dispatch,  and in any event within ten (10) days thereafter,  to the
Warrantholder  a certificate  or  certificates  for the number of full Shares so
acquired upon the exercise of the Warrant,  together with cash in respect of any
fractional  Shares  otherwise  issuable  upon  such  surrender,   determined  in
accordance  with Section 7 hereof.  Such  certificate or  certificates  shall be
deemed to have been issued, and the Warrantholder shall be deemed to have become
a holder of record of such  Shares,  as of the date of surrender of the Warrants
being  exercised and (in the case of exercise  pursuant to Section 2(a)) payment
of the Exercise  Payment  notwithstanding  that the  certificate or certificates
representing  such securities shall not actually have been delivered or that the
stock transfer books of the Company shall then be closed.  The Warrants shall be
exercisable at the election of the Warrantholder  either in full or from time to
time in part  and,  in the  event  that a  certificate  evidencing  Warrants  is
exercised  in respect of fewer than all of the Shares  specified  therein at any
time prior to the Termination  Date, a new certificate  evidencing the remaining
portion of the Warrants shall be issued by the Company.

         Section 3.  Payment of Taxes.  The Company  will pay all  transfer  and
stamp  taxes and fees,  if any,  attributable  to the  initial  issuance  of the
Warrants or the issuance of Shares upon exercise of the Warrants.

         Section 4. Mutilated or Missing  Warrants.  In case the  certificate or
certificates  evidencing  any  Warrants  shall be  mutilated,  lost,  stolen  or
destroyed,  the Company  shall,  at the request of the  affected  Warrantholder,
issue and deliver in exchange and substitution for and upon  cancellation of the
mutilated  certificate or  certificates,  or in lieu of and substitution for the
certificate or certificates lost, stolen or destroyed, a new Warrant certificate
or certificates of like tenor and  representing an equivalent right or interest,
but only upon receipt of evidence reasonably  satisfactory to the Company of the
loss, theft, destruction or mutilation of such Warrant and, if requested, at the
cost  and  expense  of  the  Warrantholder  (in  the  case  of  loss,  theft  or
destruction),  an  unsecured  bond of  indemnity  in form and amount  reasonably
satisfactory to the Company.  Such  substitute  Warrant  certificate  shall also
comply with such other reasonable regulations as the Company may prescribe.

         Section 5. Reservation of Common Shares.  There has been reserved,  and
the  Company  shall at all times  keep  reserved  and  available  so long as any
Warrants remain outstanding, out of its authorized share capital, such number of
Shares as shall be subject to purchase  under all  outstanding  Warrants.  Every
transfer  agent for the  Common  Shares  and  other  securities  of the  Company
issuable  upon the  exercise  of Warrants  will be  irrevocably  authorized  and
directed at all times to reserve  such number of  authorized  Common  Shares and
other securities as shall be requisite for such purposes.  The Company will keep
a copy of this  Agreement  on file with  every  transfer  agent  for the  Common
Shares.  The Company will supply every such  transfer  agent with duly  executed
stock and other certificates, as appropriate, for such



                                       A-7

<PAGE>



purpose  and will  provide or  otherwise  make  available  any cash which may be
payable as provided in Section 7 hereof.

         Section 6. Adjustment of Number and Kind of Securities.  The number and
kind of securities purchasable upon the exercise of the Warrants and the Warrant
Price shall be subject to  adjustment  from time to time upon the  happening  of
certain events, as follows:

         Section 6.1. Anti-Dilution  Provisions And Other Adjustments.  In order
to prevent dilution of the rights granted hereunder,  the Warrant Price shall be
subject to adjustment  from time to time in accordance with this Section 6. Upon
each   adjustment  of  the  Warrant  Price  pursuant  to  this  Section  6,  the
Warrantholder  shall  thereafter  be entitled to acquire upon  exercise,  at the
Warrant Price resulting from such adjustment, the number of Shares obtainable by
multiplying the Warrant Price in effect  immediately prior to such adjustment by
the  number  of  Shares  acquirable  immediately  prior to such  adjustment  and
dividing  the  product   thereof  by  the  Warrant  Price  resulting  from  such
adjustment.

                  (a) Adjustment for Issue or Sale of Common Shares at Less than
Specified  Prices.  Except as  provided  in  Sections  6.3 or 6.5 below,  if and
whenever  on or after the date of  issuance  hereof the  Company  shall issue or
sell, or shall in accordance with subparagraphs  6.1(a)(1) to (8), inclusive, be
deemed to have issued or sold (such issuance or sale,  whether actual or deemed,
a "Triggering Transaction") any Common Shares for a consideration per share less
than

                  (I) (if the Common Shares are not traded on the New York Stock
         Exchange,  the American Stock Exchange or the Nasdaq  National  Market)
         U.S.  $1.35 then  forthwith  upon such issue or sale the Warrant  Price
         shall,  subject to subparagraphs  (1) to (8) of this Section 6.1(a), be
         reduced to the Warrant  Price  (calculated  to the  nearest  tenth of a
         cent) determined by dividing: (i) an amount equal to the sum of (x) the
         product  derived  by  multiplying  the Number of Common  Shares  Deemed
         Outstanding  immediately  prior to such  Triggering  Transaction by the
         Warrant  Price  then in  effect,  plus (y) the  consideration,  if any,
         received  by  the  Company  upon   consummation   of  such   Triggering
         Transaction,  by (ii) an amount  equal to the sum of (x) the  Number of
         Common Shares Deemed  Outstanding  immediately prior to such Triggering
         Transaction  plus (y) the number of shares of Common  Stock  issued (or
         deemed to be issued in accordance with subparagraphs  6.1(a)(1) to (8))
         in connection with the Triggering Transaction; or

                  (II) (if the  Common  Shares  are traded on the New York Stock
         Exchange,  the American Stock Exchange or the Nasdaq  National  Market)
         the average Market Price for the ten trading days immediately preceding
         such issuance or sale, then forthwith upon such Triggering Transaction,
         the Warrant Price shall,  subject to  subparagraphs  (1) to (8) of this
         Section  6.1(a),  be reduced to the Warrant  Price  (calculated  to the
         nearest tenth of a cent) determined by multiplying the Warrant Price in
         effect immediately prior to the time of such Triggering  Transaction by
         a fraction, the numerator of which shall be the



                                       A-8

<PAGE>



         sum of (x) the Number of Common Shares Deemed  Outstanding  immediately
         prior to such  Triggering  Transaction  and (y) the  number  of  Common
         Shares which the aggregate  consideration  received by the Company upon
         such Triggering  Transaction would purchase at the average Market Price
         for  the  ten  trading  days  immediately   preceding  such  Triggering
         Transaction, and the denominator of which shall be the Number of Common
         Shares   Deemed   Outstanding   immediately   after   such   Triggering
         Transaction.

                  For  purposes  of this  Section 6, the term  "Number of Common
Shares  Deemed  Outstanding"  at any given  time  shall  mean the sum of (i) the
number of Common Shares  outstanding at such time, and (ii) the number of Common
Shares deemed to be outstanding under subparagraphs 6.1(a)(1) to (8), inclusive,
at such time.

                  For purposes of determining  the adjusted  Warrant Price under
this Section 6.1(a), the following  subsections (1) to (8), inclusive,  shall be
applicable:

                           (1) In case  the  Company  at any  time  shall in any
                  manner  grant  (whether   directly  or  by  assumption  in  an
                  amalgamation  or otherwise)  any rights to subscribe for or to
                  purchase, or any options for the purchase of, Common Shares or
                  any stock or other securities convertible into or exchangeable
                  for Common  Shares (such rights or options being herein called
                  "Options"  and  such  convertible  or  exchangeable  stock  or
                  securities  being  herein  called  "Convertible  Securities"),
                  whether  or not  such  Options  or the  right  to  convert  or
                  exchange  any  such  Convertible  Securities  are  immediately
                  exercisable,  and the price  per  share  for which the  Common
                  Shares are  issuable  upon  exercise,  conversion  or exchange
                  (determined by dividing (x) the total amount, if any, received
                  or receivable by the Company as consideration for the granting
                  of  such  Options,   plus  the  minimum  aggregate  amount  of
                  additional  consideration  payable  to the  Company  upon  the
                  exercise  of all  such  Options,  plus,  in the  case  of such
                  Options which relate to  Convertible  Securities,  the minimum
                  aggregate amount of additional consideration,  if any, payable
                  upon the issue or sale of such Convertible Securities and upon
                  the conversion or exchange  thereof,  by (y) the total maximum
                  number of Common  Shares  issuable  upon the  exercise of such
                  Options or the  conversion  or  exchange  of such  Convertible
                  Securities)  shall be less than the  average  Market  Price in
                  effect for the ten trading days immediately  prior to the time
                  of the  granting  of such  Option  (if the  Common  Shares are
                  traded on The New York  Stock  Exchange,  The  American  Stock
                  Exchange or The National  Nasdaq Market) or U.S. $1.35 (if the
                  Common  Shares are not traded on The New York Stock  Exchange,
                  The American Stock Exchange,  or the Nasdaq  National  Market)
                  then the total maximum  amount of Common Shares  issuable upon
                  the exercise of such  Options,  or, in the case of Options for
                  Convertible  Securities,  upon the  conversion  or exchange of
                  such Convertible Securities, shall (as of the date of granting
                  of such Options) be deemed to be outstanding  and to have been
                  issued and sold by the  Company  for such price per share.  No
                  adjustment of the Warrant Price shall be



                                       A-9

<PAGE>



                  made  upon the  actual  issue of such  Common  Shares  or such
                  Convertible  Securities  upon the  exercise  of such  Options,
                  except as otherwise provided in subparagraph (3) below.

                           (2) In case  the  Company  at any  time  shall in any
                  manner  issue  (whether   directly  or  by  assumption  in  an
                  amalgamation or otherwise) or sell any Convertible Securities,
                  whether or not the rights to  exchange  or convert  thereunder
                  are immediately exercisable, and the price per share for which
                  Common  Shares are issuable  upon such  conversion or exchange
                  (determined  by  dividing  (x) the total  amount  received  or
                  receivable  by the Company as  consideration  for the issue or
                  sale  of  such  Convertible   Securities,   plus  the  minimum
                  aggregate amount of additional consideration,  if any, payable
                  to the Company upon the conversion or exchange thereof, by (y)
                  the total maximum  number of Common  Shares  issuable upon the
                  conversion  or  exchange of all such  Convertible  Securities)
                  shall be less than the average  Market Price in effect for the
                  ten trading days  immediately  prior to the time of such issue
                  or sale (if the Common Shares are traded on The New York Stock
                  Exchange,  The American Stock Exchange, or The Nasdaq National
                  Market) or U.S.  $1.35 (if the Common Shares are not traded on
                  The New York Stock Exchange,  The American Stock Exchange,  or
                  The Nasdaq National Market),  then the total maximum number of
                  Common Shares issuable upon conversion or exchange of all such
                  Convertible  Securities  shall (as of the date of the issue or
                  sale  of  such   Convertible   Securities)  be  deemed  to  be
                  outstanding  and to have been  issued and sold by the  Company
                  for such price per share.  No  adjustment of the Warrant Price
                  shall be made upon the actual issue of such Common Shares upon
                  exercise  of the  rights to  exchange  or  convert  under such
                  Convertible  Securities,   except  as  otherwise  provided  in
                  subparagraph (3) below.

                           (3) If the purchase price provided for in any Options
                  referred to in subparagraph (1), the additional consideration,
                  if  any,  payable  upon  the  conversion  or  exchange  of any
                  Convertible  Securities  referred to in  subparagraphs  (1) or
                  (2), or the rate at which any Convertible  Securities referred
                  to  in  subparagraph  (1)  or  (2)  are  convertible  into  or
                  exchangeable for Common Shares shall change at any time (other
                  than  under or by reason of  provisions  designed  to  protect
                  against  dilution  of the type set forth in Section  6.1(a) or
                  (b)),  the Warrant  Price in effect at the time of such change
                  shall forthwith be readjusted to the Warrant Price which would
                  have  been  in  effect  at  such  time  had  such  Options  or
                  Convertible  Securities  still  outstanding  provided for such
                  changed purchase price, additional consideration or conversion
                  rate,  as the case  may be,  at the  time  initially  granted,
                  issued or sold.  If the  purchase  price  provided  for in any
                  Option  referred to in  subparagraph  (1) or the rate at which
                  any Convertible Securities referred to in subparagraphs (1) or
                  (2) are convertible  into or  exchangeable  for Common Shares,
                  shall be reduced at any time under or by reason of  provisions
                  with respect  thereto  designed to protect  against  dilution,
                  then in case of the delivery of Common



                                      A-10

<PAGE>



                  Shares upon the exercise of any such Option or upon conversion
                  or  exchange  of any such  Convertible  Security,  the Warrant
                  Price then in effect  hereunder shall forthwith be adjusted to
                  such  respective  amount as would have been  obtained had such
                  Option or  Convertible  Security  never been issued as to such
                  Common Shares and had adjustments  been made upon the issuance
                  of the Common Shares delivered as aforesaid,  but only if as a
                  result of such  adjustment  the  Warrant  Price then in effect
                  hereunder is hereby reduced.

                           (4)  On  the   expiration   of  any   Option  or  the
                  termination   of  any  right  to  convert  or   exchange   any
                  Convertible  Securities,  the  Warrant  Price  then in  effect
                  hereunder  shall  forthwith be increased to the Warrant  Price
                  which would have been in effect at the time of such expiration
                  or termination had such Option or Convertible  Securities,  to
                  the extent outstanding immediately prior to such expiration or
                  termination, never been issued.

                           (5) In case any Options shall be issued in connection
                  with the  issue or sale of other  securities  of the  Company,
                  together  comprising  one  integral  transaction  in  which no
                  specific  consideration  is  allocated  to such Options by the
                  parties  thereto,  such  Options  shall be deemed to have been
                  issued without consideration.

                           (6) In case any Common Shares, Options or Convertible
                  Securities  shall be  issued  or sold or  deemed  to have been
                  issued or sold for cash, the  consideration  received therefor
                  shall be  deemed  to be the  amount  received  by the  Company
                  therefor.  In case any Common  Shares,  Options or Convertible
                  Securities  shall be issued or sold for a consideration  other
                  than  cash,  the amount of the  consideration  other than cash
                  received  by the  Company  shall  be the  fair  value  of such
                  consideration  as  determined  in good  faith by the  Board of
                  Directors of the Company.  In case any Common Shares,  Options
                  or Convertible  Securities  shall be issued in connection with
                  any  amalgamation  in which  the  Company  is an  amalgamating
                  corporation,  the amount of  consideration  therefor  shall be
                  deemed to be the fair value of such  portion of the net assets
                  and business of the other  corporation which is a party to the
                  amalgamation  as shall be attributed by the Board of Directors
                  of the Company in good faith to such Common Shares, Options or
                  Convertible Securities, as the case may be.

                           (7) In case the Company  shall  declare a dividend or
                  make any  other  distribution  upon the  stock of the  Company
                  payable  in Options or  Convertible  Securities,  then in such
                  case any Options or  Convertible  Securities,  as the case may
                  be, issuable in payment of such dividend or distribution shall
                  be deemed to have been issued or sold without consideration.




                                      A-11

<PAGE>



                           (8) For purposes of this Section 6.1(a),  in case the
                  Company  shall  take a record  of the  holders  of its  Common
                  Shares  for the  purpose  of  entitling  them (x) to receive a
                  dividend  or other  distribution  payable  in  Common  Shares,
                  Options or in Convertible Securities,  or (y) to subscribe for
                  or purchase Common Shares, Options or Convertible  Securities,
                  then such  record  date  shall be deemed to be the date of the
                  issue or sale of the Common  Shares deemed to have been issued
                  or sold upon the declaration of such dividend or the making of
                  such other  distribution  or the date of the  granting of such
                  right or subscription or purchase, as the case may be.

                  (b) In case the  Company  shall (i) pay a  dividend  in Common
         Shares or make a  distribution  in Common Shares or (ii)  subdivide its
         outstanding  Common  Shares,  the Warrant  Price in effect  immediately
         prior to such subdivision or dividend shall be proportionately  reduced
         by the same ratio as the dividend or  subdivision.  In case the Company
         shall at any time combine its  outstanding  Common Shares,  the Warrant
         Price  in  effect  immediately  prior  to  such  combination  shall  be
         proportionately  increased  by the same ratio as the  combination.  Any
         adjustment  made  pursuant  to  this  subsection  6.1(b)  shall  become
         effective  immediately on the effective date of such event  retroactive
         to the record date, if any, for such event.

                  (c) Whenever the number of Common Shares  purchasable upon the
         exercise of Warrants is adjusted as herein provided,  the Company shall
         cause to be  promptly  delivered  to the  Warrantholder  notice of such
         adjustment  and a  certificate  of the chief  financial  officer of the
         Company setting forth the number of Common Shares  purchasable upon the
         exercise of the Warrants after such adjustment,  the Warrant Price that
         will be effective after such adjustment, a brief statement of the facts
         requiring such  adjustment and the computation by which such adjustment
         was made.  If such notice  relates to an adjustment  resulting  from an
         event  referred to in Section 8, such notice  shall be included as part
         of  the  notice  required  to be  delivered  and  published  under  the
         provisions of Section 8 hereof.

         6.2. No Adjustment for Dividends. Except as provided in this Section 6,
no adjustment  to the Warrants or any provision or condition  thereof in respect
of any dividends or distributions  out of earnings shall be made during the term
of the Warrants or upon the exercise of Warrants.

         6.3. Dividends Not Paid Out of Earnings or Earned Surplus. In the event
the  Company  shall  declare a dividend  upon the Common  Shares  (other  than a
dividend  payable in Common  Shares)  payable  otherwise than out of earnings or
earned  surplus,  determined in accordance  with generally  accepted  accounting
principles,   including  the  making  of  appropriate  deductions  for  minority
interests,   if  any,  in  subsidiaries  (herein  referred  to  as  "Liquidating
Dividends"),  then, as soon as possible after the exercise of this Warrant,  the
Company shall pay to the person  exercising  such Warrant an amount equal to the
aggregate  value  at the  time of such  exercise  of all  Liquidating  Dividends
(including but not limited to the Common Shares which would have



                                      A-12

<PAGE>



been issued at the time of such earlier  exercise and all other securities which
would have been  issued with  respect to such  Common  Shares by reason of stock
splits,  stock  dividends,  amalgamations or  reorganizations,  or for any other
reason).  For the purposes of this subsection 6.3, a dividend other than in cash
shall be considered payable out of earnings or earned surplus only to the extent
that such  earnings or earned  surplus  are charged an amount  equal to the fair
value of such  dividend as determined in good faith by the Board of Directors of
the Company.

         6.4. Reclassification, Amalgamation, etc. If any capital reorganization
or  reclassification of the share capital of the Company, or amalgamation of the
Company with another corporation, or the sale of all or substantially all of its
assets to another  corporation  shall be effected in such a way that  holders of
Common  Shares  shall be entitled to receive  stock,  securities,  cash or other
property with respect to or in exchange for Common Shares,  then, as a condition
of such  reorganization,  reclassification,  amalgamation  or sale,  lawful  and
adequate provision shall be made whereby the Warrantholder  shall have the right
to acquire  and receive  upon  exercise  of this  Warrant  such shares of stock,
securities,  cash  or  other  property  issuable  or  payable  (as  part  of the
reorganization,  reclassification,  amalgamation  or sale) with respect to or in
exchange for such number of outstanding  Shares as would have been received upon
exercise of this Warrant at the Warrant  Price then in effect.  The Company will
not effect  any such  amalgamation  or sale,  unless  prior to the  consummation
thereof the amalgamated  corporation or the  corporation  purchasing such assets
shall assume by written  instrument mailed or delivered to the Warrantholder the
obligation to deliver to such holder such shares of stock,  securities or assets
as, in accordance with the foregoing provisions,  such holder may be entitled to
purchase. If a purchase, tender or exchange offer is made to and accepted by the
holders of more than 50% of the  outstanding  Common Shares of the Company,  the
Company  shall not effect any  amalgamation  or sale with the person having made
such  offer  or  with  any  Affiliate  of  such  person,  unless  prior  to  the
consummation  of such  amalgamation  or sale the  Warrantholder  shall have been
given a  reasonable  opportunity  to then elect to receive  upon the exercise of
this Warrant  either the stock,  securities or assets then issuable with respect
to the Common Shares of the Company or the stock,  securities or assets,  or the
equivalent,  issued to previous  holders of the Common Shares in accordance with
such offer.  For purposes hereof the term  "Affiliate" with respect to any given
person shall mean any person controlling,  controlled by or under common control
with  the  given  person.  In  the  event  of  a  merger  described  in  Section
368(a)(2)(E) of the Internal Revenue Code of 1986 (or any successor  provision),
in which the Company is the surviving corporation,  the right to purchase Shares
upon  exercise of the  Warrants  shall  terminate on the date of such merger and
thereupon the Warrants shall become null and void,  but only if the  controlling
corporation  (after such event) shall agree to  substitute  for the Warrants its
warrants  entitling the  Warrantholder to purchase the kind and amount of shares
and other  securities  and property which it would have been entitled to receive
had the Warrants  been  exercised  immediately  prior to such  merger.  Any such
agreements  referred to in this  subsection  6.3 shall provide for  adjustments,
which shall be as nearly  equivalent as may be  practicable  to the  adjustments
provided for in this Section 6, and shall contain  substantially the same terms,
conditions  and  provisions as are contained  herein  immediately  prior to such
event. The provisions of this subsection 6.4 shall similarly apply to successive
amalgamations, sales or conveyances.



                                      A-13

<PAGE>



         6.5. No Adjustment for Exercise of Certain Options,  Warrants, Etc. The
provisions  of this  Section  6 shall  not apply to any  Common  Shares  issued,
issuable or deemed outstanding under  subparagraphs  6.1(a)(1) to (8) inclusive:
(i) to any person  pursuant to any stock option,  stock purchase or similar plan
or  arrangement  for the benefit of employees,  consultants  or directors of the
Company or its subsidiaries in effect on the date hereof or hereafter adopted by
the Board of Directors of the Company, or (ii) pursuant to options, warrants and
conversion  rights in existence on the date hereof,  including  the  Convertible
Shares.

         6.6.  Grant,  Issue  or Sale of  Options,  Convertible  Securities,  or
Rights.  If at any  time or from  time to  time  on or  after  the  date of this
Agreement,  the Company  shall  grant,  issue or sell any  Options,  Convertible
Securities or rights to purchase  property (the  "Purchase  Rights") pro rata to
the record holders of any class of share capital of the Company and such grants,
issuances  or sales do not result in an  adjustment  of the Warrant  Price under
Section  6.1(a)  hereof,  then the  Warrantholder  shall be  entitled to acquire
(within  thirty (30) days after the later to occur of the initial  exercise date
of such Purchase Rights or receipt by the Warrantholder of the notice concerning
Purchase  Rights to which the  Warrantholder  shall be entitled under Section 8)
and upon the terms applicable to such Purchase Rights either:

                  (a) the  aggregate  Purchase  Rights  which the  Warrantholder
         could have acquired if it had held the number of Shares acquirable upon
         exercise of this Warrant immediately before the grant, issuance or sale
         of such  Purchase  Rights;  provided  that if any Purchase  Rights were
         distributed to the  Warrantholder  of Common Shares without the payment
         of additional  consideration  by such holders,  corresponding  Purchase
         Rights shall be  distributed to the  Warrantholder  as soon as possible
         after  exercise of this Warrant and it shall not be  necessary  for the
         Warrantholder specifically to request delivery of such rights; or

                  (b) in the event  that any such  Purchase  Rights  shall  have
         expired  or  shall  expire  prior  to the end of said  thirty  (30) day
         period,  the  number  of Shares or the  amount  of  property  which the
         Warrantholder  could have  acquired  upon such  exercise at the time or
         times at  which  the  Company  granted,  issued  or sold  such  expired
         Purchase Rights.

         6.7.  Nominal  Value of Common  Shares.  Before taking any action which
would cause an adjustment  effectively reducing the portion of the Warrant Price
allocable to each Share below the then  nominal  value per Share  issuable  upon
exercise of the Warrants,  the Company will take any corporate action which may,
in the  opinion of its  counsel,  be  necessary  in order that the  Company  may
validly and legally issue fully paid and  nonassessable  Shares upon exercise of
the Warrants.

         6.8.  Independent Public Accountants.  The Company may retain a firm of
independent  public  accountants of recognized  national  standing in the United
States  (which may be any such firm  regularly  employed by the Company) to make
any computation required under this Section.




                                      A-14

<PAGE>



         6.9. Statement on Warrant Certificates. Irrespective of any adjustments
in the  number  of  securities  issuable  upon  exercise  of  Warrants,  Warrant
certificates  theretofore or thereafter  issued may continue to express the same
number of securities as are stated in the similar Warrant certificates initially
issuable  pursuant to this Agreement.  However,  the Company may, at any time in
its reasonable  discretion,  make any change in the form of Warrant  certificate
that it may deem appropriate and that does not affect the substance thereof; and
any Warrant certificate hereafter issued,  whether upon registration of transfer
of, or in exchange or substitution for, an outstanding Warrant certificate,  may
be in the form so changed.

         6.10.  Adjustment  by Board of  Directors.  If any  event  occurs as to
which,  in the opinion of the Board of Directors of the Company,  the provisions
of this Section 6 are not strictly  applicable or if strictly  applicable  would
not  fairly  protect  the rights of the  Warrantholder  in  accordance  with the
essential intent and principles of such provisions,  then the Board of Directors
shall make an adjustment in the  application of such  provisions,  in accordance
with such  essential  intent and  principles,  so as to protect  such  rights as
aforesaid,  but in no event shall any  adjustment  have the effect of increasing
the Warrant Price as otherwise  determined  pursuant to any of the provisions of
this  Section  6  except  in the  case  of a  combination  of  shares  of a type
contemplated in Section 6.1(a) and then in no event to an amount larger than the
Warrant Price as adjusted pursuant to Section 6.1(a).

         Section 7. Fractional Interests. The Company shall not issue fractional
Common  Shares upon any  exercise of any  Warrants.  If any fraction of a Common
Share  would,  except for the  provisions  of this Section 7, be issuable on the
exercise of any  Warrants,  the Company shall pay an amount in cash equal to the
Market Price (as defined in Section 2(b) hereof, except if the Common Shares are
not publicly  traded,  as  determined in good faith by the Board of Directors of
the Company)  multiplied by such  fraction,  provided,  however,  that no amount
shall be paid by the Company of less than U.S. $5.00.

         Section 8. No Rights as Shareholder; Notices to Warrantholder.  Nothing
contained in this  Agreement or in the Warrants shall be construed as conferring
upon the  Warrantholder  any rights as a shareholder  of the Company,  including
(without  limitation) the right to vote, receive  dividends,  consent or receive
notices  as a  shareholder  in respect of any  meeting of  shareholders  for the
election of  directors  of the Company or any other  matter,  except as provided
herein.  If,  however,  at any time prior to the  expiration of the Warrants and
prior to their exercise in full,  any one or more of the following  events shall
occur:

                  (a) any action which would require an  adjustment  pursuant to
         Section 6.1 or 6.3; or

                  (b) the  Company  shall  declare  any cash  dividend  upon its
         Common Shares; or




                                      A-15

<PAGE>



                  (c) the Company  shall  declare any  dividend  upon its Common
         Shares  payable  in  stock  or  make  any  special  dividend  or  other
         distribution to the holders of its Common Shares; or

                  (d) the Company shall offer Purchase  Rights to the holders of
         its Common Shares; or

                  (e)   there   shall   be   any   capital   reorganization   or
         reclassification  of the share  capital of the Company,  including  any
         subdivision  or  combination  of  its  outstanding  Common  Shares,  or
         amalgamation of the Company with, or sale of all or  substantially  all
         of its assets to, another corporation; or

                  (f) there shall be a dissolution, liquidation or winding up of
         the Company (other than in connection  with an  amalgamation or sale of
         its property, assets and business as an entirety or substantially as an
         entirety);

then  the   Company   shall  give  notice  in  writing  of  such  event  to  the
Warrantholder,  as provided in Section 10 hereof,  at least 20 days prior to (i)
the date fixed as a record  date or the date of closing the  transfer  books for
the  determination  of  the  shareholders  entitled  to any  relevant  dividend,
distribution,  Purchase  Rights  or other  rights  or for the  determination  of
shareholders entitled to vote on such proposed reorganization, reclassification,
amalgamation,  sale,  dissolution,  liquidation  or winding up and (ii) the date
when any such reorganization, reclassification, amalgamation, sale, dissolution,
liquidation or winding up shall take place.  Such notice in accordance  with the
foregoing  clause  (i) shall  also  specify,  in the case of any such  dividend,
distribution or Purchase Rights,  the date on which the holders of Common Shares
shall be entitled  thereto,  and such notice in  accordance  with the  foregoing
clause (ii) shall also  specify  the date on which the holders of Common  Shares
shall be  entitled to  exchange  their  Common  Shares for  securities  or other
property deliverable upon such reorganization,  reclassification,  amalgamation,
sale, dissolution, liquidation or winding up, as the case may be.

         Section  9. No  Dilution  or  Impairment.  The  Company  will  not,  by
amendment of its charter or through reorganization,  amalgamation,  dissolution,
sale of  assets  or any  other  voluntary  action,  avoid or seek to  avoid  the
observance or performance  of any of the terms of this Warrant,  but will at all
times in good  faith  assist in the  carrying  out of all such  terms and in the
taking of all such action as may be necessary or appropriate in order to protect
the rights of the Warrantholder  against dilution or other  impairment.  Without
limiting the generality of the foregoing,  the Company will not increase the par
value of any shares  receivable  upon the  exercise  of this  Warrant  above the
amount payable therefor upon such exercise,  and at all times will take all such
action as may be necessary or  appropriate in order that the Company may validly
and legally issue fully paid and non-assessable shares upon the exercise of this
Warrant.

         Section 10. Notices. Any notice hereunder shall be in writing and shall
be effective  when  delivered in person or by facsimile  transmission,  or seven
business days after being mailed



                                      A-16

<PAGE>



by certified or registered mail, postage prepaid,  return receipt requested,  to
the appropriate party at the following addresses:

If to the Warrantholder:

                  Warburg Pincus Ventures, L.P.
                  466 Lexington Avenue
                  New York, New York 10017-3147
                  Facsimile: 212-878-9351
                  Attention:  Mr. Joel Ackerman

with a copy to:

                  Willkie Farr & Gallagher
                  153 East 53rd Street
                  New York, New York 10022
                  Facsimile: 212-821-8111
                  Attention: Steven J. Gartner, Esq.

If to the Company:

                  HealthCare Capital Corp.
                  111 SW Fifth Avenue, Suite 2390
                  Portland, Oregon 97204
                  Facsimile: 503-225-9309
                  Attention:  Mr. Brandon M. Dawson

with copy to:

                  Carter, Ledyard & Milburn
                  2 Wall Street
                  New York, New York  10005
                  Facsimile:  212-732-3232
                  Attention:  John K. Whelan, Esq.

or, in each case, to such other address as the parties may hereinafter designate
by like notice.

         Section  11.  Successors.  All the  covenants  and  provisions  of this
Agreement  for the benefit of the  Warrantholder  or the Company  shall bind and
inure to the benefit of their successors and, in the case of the  Warrantholder,
permitted assigns. This Agreement shall not be assignable by the Company.

         Section  12.  Amalgamation  of  the  Company.  The  Company  shall  not
amalgamate with any other  corporation or sell all or  substantially  all of its
property  to another  corporation,  unless  the  provisions  of Section  6.4 are
complied with.




                                      A-17

<PAGE>



         Section 13. Remedies.  The Company  stipulates that the remedies at law
of the  Warrantholder  in  the  event  of any  default  by  the  Company  in the
performance  of or compliance  with any of the terms of this Warrant are not and
will not be adequate, and that the same may be specifically enforced.

         Section 14.  Subdivision  of Rights.  The  Warrants (as well as any new
warrants  issued  pursuant to the provisions of this Section) are  exchangeable,
upon the surrender  hereof by the  Warrantholder  at the principal office of the
Company for any number of new  warrants of like tenor and date  representing  in
the aggregate the right to subscribe for and purchase the number of Shares which
may be subscribed for and purchased hereunder.

         Section 15. Applicable Law; Submission to Jurisdiction.  This Agreement
shall be deemed to be a  contract  made  under the laws of the State of New York
and for all purposes shall be construed in accordance  with the internal laws of
said State (without reference to its rules as to conflicts of laws). The Company
hereby agrees to the  non-exclusive  jurisdiction  of the courts of the State of
New York or the  federal  courts  sitting in the City of New York in  connection
with any action arising out of this Agreement.

         Section 16. Benefits of this  Agreement.  Except as provided in Section
1.2 and Section 11, nothing in this Agreement  shall be construed to give to any
person or corporation  other than the Company and the Warrantholder any legal or
equitable  right,  remedy or claim under this  Agreement.  Except as provided in
Section 1.2 and Section 11, this  Agreement  shall be for the sole and exclusive
benefit of the Company and the Warrantholder.

         IN WITNESS  WHEREOF,  the parties have caused this Agreement to be duly
executed, all as of the date and year first above written.

                                HEALTHCARE CAPITAL CORP.


                                By: ___________________________________
                                         Name:
                                         Title:


                                WARBURG PINCUS VENTURES, L.P.


                                By: Warburg, Pincus & Co.,
                                    General Partner



                                     By: _________________________________
                                     Print Name:
                                     Title:




                                      A-18

<PAGE>



                                                                EXHIBIT 1

                          [FORM OF WARRANT CERTIFICATE]

                  "THE WARRANTS REPRESENTED BY THIS CERTIFICATE,  AND THE COMMON
                  SHARES ISSUABLE UPON EXERCISE OF SUCH WARRANTS,  HAVE NOT BEEN
                  REGISTERED  UNDER THE UNITED STATES  SECURITIES ACT OF 1933 OR
                  THE  SECURITIES  LAWS OF ANY STATE OF THE UNITED STATES OR ANY
                  PROVINCE OF CANADA. SUCH WARRANTS MAY NOT BE SOLD, OFFERED FOR
                  SALE,   ASSIGNED,   EXCHANGED,   PLEDGED  OR  HYPOTHECATED  OR
                  OTHERWISE  TRANSFERRED,  IN ANY MANNER, AND SUCH COMMON SHARES
                  MAY NOT BE OFFERED FOR SALE, SOLD,  PLEDGED OR HYPOTHECATED OR
                  TRANSFERRED IN THE ABSENCE OF SUCH  REGISTRATION OR AN OPINION
                  OF COUNSEL,  REASONABLY  SATISFACTORY TO THE COMPANY,  THAT AN
                  EXEMPTION FROM SUCH  REGISTRATION  IS AVAILABLE." THE WARRANTS
                  REPRESENTED  BY THIS  CERTIFICATE  MAY NOT BE TRADED IN CANADA
                  EXCEPT AS PERMITTED BY RELEVANT CANADIAN SECURITIES LAWS.


                                                   Warrant Certificate No. _____


                            HEALTHCARE CAPITAL CORP.

                            (ORGANIZED UNDER THE LAWS
                                   OF ALBERTA)
                                                          January __, 1998

                       WARRANTS TO PURCHASE COMMON SHARES

         This certifies that, for value received,  Warburg Pincus Ventures, L.P.
(the  "Warrantholder")  is the registered owner of ___ warrants (the "Warrants")
each to purchase from  HealthCare  Capital Corp.  (the  "Company"),  at any time
prior to 5:00 p.m.,  Pacific Time, on January __, 2001,  one common share of the
Company,  without  par value (a "Common  Share") at a purchase  price per Common
Share of U.S. $2.40 (the "Warrant Price").  The Warrants are subject to, and the
Warrantholder, by acceptance of this certificate, consents to, all the terms and
provisions of, the Warrant  Agreement dated as of January 16, 1998,  between the
Warrantholder  and the Company,  pursuant to which the Warrants were issued (the
"Warrant  Agreement").  Any capitalized terms used herein and not defined herein
shall have the  meanings  assigned to such terms in the Warrant  Agreement.  The
Termination  Date may be extended for a further period of two years, as provided
in Section 2(a) of the Warrant Agreement.



                                      A-19

<PAGE>



         The Warrants  evidenced  hereby may be exercised in whole or in part by
presentation  of this Warrant  Certificate  with the  Purchase  Form herein duly
executed  (with a signature  guarantee as provided  therein),  and  simultaneous
payment of the Warrant Price for each Warrant exercised, at the principal office
of the  Company.  Payment  of such  price  shall  be made at the  option  of the
Warrantholder  in cash by certified or official bank check or by wire  transfer.
Subject  to the  terms and  conditions  set  forth in  Section 2 of the  Warrant
Agreement,  the  Warrantholder  may also receive  Common Shares without any cash
payment by presentation of this Warrant  Certificate with the Cashless  Exercise
Form herein duly executed  (with a signature  guarantee as provided  therein) at
the principal office of the Company.

         Upon any partial exercise of the Warrants evidenced hereby, there shall
be signed and issued to the  Warrantholder a new Warrant  Certificate in respect
of the Common  Shares as to which the Warrants  evidenced  hereby shall not have
been exercised.  These Warrants may be exchanged at the office of the Company by
surrender  of this  Warrant  Certificate  properly  endorsed for one or more new
Warrants of the same aggregate  number of Common Shares as here evidenced by the
Warrant or Warrants  exchanged.  No fractional Common Shares will be issued upon
the exercise of rights to purchase hereunder, but the Company shall pay the cash
value  of any  fraction  otherwise  issuable  upon the  exercise  of one or more
Warrants, as provided in the Warrant Agreement.

         The Warrants  evidenced hereby are transferable only in accordance with
the terms and conditions set forth in Section 1.2 of the Warrant Agreement.

         This Warrant  Certificate does not entitle the  Warrantholder to any of
the rights of a shareholder of the Company.

                                             HEALTHCARE CAPITAL CORP.

                                             By: _____________________________

                                             Title: _________________________
ATTEST:

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

Title:_________________________

Dated:                   , 1998



                                      A-20

<PAGE>



                                                               EXHIBIT 2
                                  PURCHASE FORM

HealthCare Capital Corp.
111 SW Fifth Avenue, Suite 2390
Portland, Oregon 97204

         Pursuant to Section  2(a) of the  Warrant  Agreement,  the  undersigned
hereby irrevocably elects to exercise the right of purchase  represented by this
Warrant Certificate for, and to purchase thereunder, __________ common shares of
the Company  (the "Common  Shares"),  and requests  that  certificates  for such
Common Shares be issued in the name of:

Warburg Pincus Ventures, L.P.
466 Lexington Avenue
New York, New York 10017-3147
Taxpayer Identification Number: ________________

If this Warrant Certificate is hereby being exercised with respect to fewer than
all the Common Shares specified herein,  please issue a new Warrant  Certificate
for the  unexercised  balance  of the  Warrants,  registered  in the name of the
undersigned Warrantholder as below indicated and delivered to the address stated
below.

Dated: _______________________

Name of Warrantholder:

Warburg Pincus Ventures, L.P.
466 Lexington Avenue
New York, New York 10017-3147

         By:  Warburg, Pincus & Co.
                  General Partner

              By:________________________________
                  Print Name:
                  Title:





                                      A-21

<PAGE>



                                                               EXHIBIT 3
                             CASHLESS EXERCISE FORM

HealthCare Capital Corp.
111 SW Fifth Avenue, Suite 2390
Portland, Oregon 97204

         Pursuant to Section  2(b) of the  Warrant  Agreement,  the  undersigned
hereby  irrevocably  elects to exercise  the right  represented  by this Warrant
Certificate for, and to receive thereunder without any cash payment,  __________
common shares of the Company (the "Common Shares") as provided for therein,  and
requests that certificates for such Common Shares be issued in the name of:

Warburg Pincus Ventures, L.P.
466 Lexington Avenue
New York, New York 10017-3147
Taxpayer Identification Number:

If this Warrant Certificate is hereby being exercised with respect to fewer than
all the Common Shares specified herein,  please issue a new Warrant  Certificate
for the  unexercised  balance  of the  Warrants,  registered  in the name of the
undersigned Warrantholder as below indicated and delivered to the address stated
below.

Dated: _______________________

Name of Warrantholder:

Warburg Pincus Ventures, L.P.
466 Lexington Avenue
New York, New York 10017-3147

         By:  Warburg, Pincus & Co.
                  General Partner

              By:________________________________
                  Print Name:
                  Title:





                                      A-22


<PAGE>



                                                               EXHIBIT C




                            HEALTHCARE CAPITAL CORP.

                 TERMS OF SERIES A CONVERTIBLE PREFERRED SHARES
                               (Without Par Value)




         We, the  undersigned,  Brandon M.  Dawson and  William  DeJong,  being,
respectively,  the President and the Secretary of HealthCare  Capital  Corp.,  a
corporation organized and existing under the laws of Alberta (hereinafter called
the "Corporation"), DO HEREBY CERTIFY:

         FIRST:  That the Board of  Directors of the  Corporation,  by unanimous
written  consent  dated  November  20,  1997,  has duly  adopted  the  following
resolutions  providing  for the issuance of a series of preferred  shares of the
Corporation:

                  "RESOLVED that the Board of Directors of the Corporation  (the
         "Board") hereby authorizes the issuance of a series of preferred shares
         of the  Corporation  and  hereby  fixes  the  designation,  powers  and
         preferences,  and  the  relative,  participating,  optional  and  other
         special  rights  and   qualifications,   limitations  and  restrictions
         thereof, in addition to those set forth in the Corporation's  Articles,
         as amended, as follows:

                  "1. Number and Designation. The number of shares to constitute
         this series  shall be  13,333,333  and the  designation  of such shares
         shall be the  "Series  A  Convertible  Preferred  Shares"  (hereinafter
         called "this Series").  The number of shares  constituting  this Series
         may be  decreased  from time to time by action  of the  Board,  but not
         below the number of shares of this Series then outstanding.  All shares
         of this Series shall be identical with each other in all respects.  The
         shares of this  Series  shall  rank  senior to the common  shares  (the
         "Common  Shares")  of the  Corporation  as to cash  dividends  and upon
         liquidation,  as described below. Any amounts herein  referencing share
         prices or numbers of shares shall be subject to appropriate adjustments
         in the event of any stock splits, consolidations or the like.

                  "2.      Dividend Rights.

                  (a) Subject to the  provisions  of this Section 2, the holders
         of shares of this Series shall be entitled to receive  when,  as and if
         declared  by the  Board,  out of  assets  legally  available  therefor,
         cumulative  dividends  ("Dividends")  at the applicable  rate per annum
         specified  in Section 2(b) hereof from the date of issuance and payable
         in



                                       C-1

<PAGE>



         accordance with Section 2(c) hereof. Dividends shall be cumulative from
         the date of initial issuance of the shares of this Series (the "Initial
         Issuance Date"), whether or not there shall be assets legally available
         for the  payment of such  Dividends.  In the event that the Board shall
         declare a Dividend,  subject to applicable regulatory  approvals,  such
         Dividend  may,  at the  discretion  of the Board,  be payable in Common
         Shares.  The  number of Common  Shares to be issued to the  holders  of
         shares of this Series  upon the payment of a Dividend in Common  Shares
         shall be the amount of the Dividends payable to such holder pursuant to
         this  Section 2 divided  by either  (i) (if the  Common  Shares are not
         traded on the New York Stock  Exchange,  the American Stock Exchange or
         the Nasdaq  National  Market) U.S.  $1.35 or (ii) (if the Common Shares
         are traded on the New York Stock Exchange,  the American Stock Exchange
         or the Nasdaq  National  Market) the average Market Price of the Common
         Shares as such term is  defined  below  for the ten (10)  trading  days
         immediately  preceding  the  Record  Date as such  term is  defined  in
         Section 2(c) hereof.

                           For all purposes  hereof,  the term "Market  Price of
         the Common  Shares" as of any  specified  date shall  mean:  (i) if the
         Common  Shares are listed or admitted for trading on one or more United
         States national securities  exchanges,  the daily closing price for the
         Common Shares on the  principal  exchange in the United States on which
         the Common Shares are listed;  (ii) if the Common Shares are not listed
         or  admitted  for  trading on any  United  States  national  securities
         exchange,  the daily  closing price for the Common Shares on the Nasdaq
         National or Nasdaq  Small-Cap  Market  ("Nasdaq");  (iii) if the Common
         Shares  are not  listed or  admitted  for  trading  on a United  States
         national  securities  exchange or on Nasdaq, the daily closing price of
         the Common  Shares on the principal  stock  exchange in Canada on which
         the Common Shares are listed  (expressed in United States dollars based
         upon the noon  buying  rate in New York  City for  cable  transfers  in
         Canadian  dollars as  certified  for  customs  purposes  by the Federal
         Reserve Bank of New York);  (iv) if the Common Shares are not listed or
         admitted to trading on any United States national or Canadian  national
         securities  exchange or on Nasdaq,  the average of the reported bid and
         asked   prices  on  the  trading  day   preceding   such  date  in  the
         over-the-counter  market as furnished by the National Quotation Bureau,
         Inc., or, if such firm is not then engaged in the business of reporting
         such prices, as furnished by any member of the National  Association of
         Securities Dealers,  Inc. selected by the Company; or (v) if the Common
         Shares are not publicly traded,  the Market Price for such day shall be
         the fair market value thereof determined jointly by the Company and the
         holder of a majority  of the shares of this  Series  then  outstanding;
         provided,  however,  that if such parties are unable to reach agreement
         within  a  reasonable  period  of  time,  the  Market  Price  shall  be
         determined  in good faith by the  independent  investment  banking firm
         selected  jointly by the  Company  and the holder of a majority  of the
         shares of this Series then  outstanding or, if that selection cannot be
         made within an additional 15 days, by an independent investment banking
         firm  selected by the American  Arbitration  Association  in accordance
         with its rules.




                                       C-2

<PAGE>



                  "(b) The  Dividend  per share of this Series shall be computed
         based  upon a rate per annum of 5% on a base  amount of U.S.  $1.35 per
         share of this Series (the "Base  Amount").  The Dividend rate per annum
         shall be subject  to  increase  in the event that all of the  following
         conditions (the "Triggering Conditions") have not been satisfied by the
         dates specified below: (i) the Common Shares are listed on the New York
         Stock  Exchange,  the American  Stock  Exchange or the Nasdaq  National
         Market;  (ii) the  Common  Shares  are  traded  on the New  York  Stock
         Exchange,  the American Stock Exchange or the Nasdaq National Market at
         a Market Price greater than U.S.  $2.40 per Common Share on each of the
         10  consecutive  trading  days  preceding  such  date;  and  (iii)  the
         Corporation's  net income  (excluding  profit or loss on  disposal of a
         significant  part of the Company's  assets or separate segment thereof,
         gains on restructuring payables,  gains or losses on the extinguishment
         of debt,  expropriations  of  property,  gains or  losses  that are the
         direct result of a major casualty,  or one-time  losses  resulting from
         prohibition  under a  newly-enacted  law or  regulation)  before income
         taxes,  Dividends  on the  shares of this  Series and  amortization  of
         goodwill and covenants not to compete for the three consecutive  fiscal
         quarters  preceding  such date,  as  reported  in or  derived  from the
         Corporation's quarterly or annual reports filed with the Securities and
         Exchange Commission,  shall have averaged at least U.S. $0.07 per fully
         diluted Common Share per fiscal quarter,  provided,  however, in making
         such  calculation,  the Common  Shares  issuable  upon  exercise of the
         warrants issued to Warburg Pincus Ventures, L.P. ("Warburg"),  pursuant
         to that certain Warrant  Agreement  between the Corporation and Warburg
         relating to warrants to purchase 10,000,000 Common Shares (the "Warrant
         Agreement"),  shall be excluded  but Common  Shares  issuable  upon the
         conversion  of the shares of this Series shall not. All  references  to
         per share amounts or prices with respect to the  Triggering  Conditions
         shall be appropriately adjusted for any subdivision,  consolidation, or
         reclassification of the Common Shares. Until the Triggering  Conditions
         have been satisfied, the Dividend rate per annum shall be (A)15% of the
         Base Amount per share of this Series from and after January 1, 2003 and
         payable in accordance  with Section 2(c) hereof  commencing  January 1,
         2004;  (B) 18% of the Base  Amount  per share of this  Series  from and
         after  January 1, 2004 and  payable in  accordance  with  Section  2(c)
         hereof commencing January 1, 2005; and (C) thereafter,  21% of the Base
         Amount  per share of this  Series  from and after  January  1, 2005 and
         payable in accordance  with Section 2(c) hereof  commencing  January 1,
         2006.  Upon the  satisfaction  of all the  Triggering  Conditions,  the
         Dividend per share of this Series  shall be computed  based upon a rate
         per annum of 5% of the Base  Amount.  Accruals of  Dividends  shall not
         bear  interest.  All Dividends  declared upon the shares of this Series
         shall be declared pro rata per share.

                  "(c) The record date for the  determination  of the holders of
         shares of this Series who shall be entitled to receive  Dividends  (the
         "Record  Date") shall be the first  business day of each calendar year,
         and only the  holders of shares of this  Series of record on the Record
         Date shall be entitled to receive such Dividends. All Dividends payable
         to such  holders  of  record  shall be paid on the tenth  business  day
         following the Record Date on each issued and outstanding  share of this
         Series.



                                       C-3

<PAGE>



                  "(d) Dividends payable on shares of this Series for any period
         other than a full  dividend  period shall be computed on the basis of a
         360-day year consisting of twelve 30- day months.  Any Dividend payment
         made on shares of this  Series  shall  first be  credited  against  the
         earliest  accumulated  but  unpaid  Dividends  due with  respect to the
         shares of this Series.

                  "(e) No  dividends  shall be declared or paid or set aside for
         payment  on  any  share  capital  of  the  Corporation  ranking,  as to
         dividends, on a parity with or subordinate to the shares of this Series
         for  any  period  unless  full  accumulated   Dividends  have  been  or
         contemporaneously   are  declared  and  paid  or  declared  and  a  sum
         sufficient  for the payment  thereof set aside for such  payment on the
         shares of this Series for all Dividend periods  terminating on or prior
         to the date of payment of such  dividends.  When Dividends are not paid
         in full on the shares of this Series and any other preferred  shares of
         the  Corporation  ranking  with  respect to payment of  dividends  on a
         parity with the shares of this Series,  all dividends  declared or paid
         upon shares of this  Series and such other  preferred  shares  shall be
         declared and paid pro rata so that the amount of dividends declared and
         paid on the shares of this Series and such other preferred shares shall
         in all  cases  bear to each  other  the  same  ratio  that  accumulated
         dividends  per  share  (which  in the case of  noncumulative  preferred
         shares  shall  not  include  any  accumulation  in  respect  of  unpaid
         dividends for prior dividend periods) on shares of this Series and such
         other  preferred  shares bear to each other.  Except as provided in the
         preceding sentence, unless full accumulated Dividends have been paid or
         declared  and a sum  sufficient  for the payment  thereof set aside for
         payment,  no dividends (other than dividends or  distributions  paid in
         Common  Shares,  or  options,  warrants or rights to  subscribe  for or
         purchase Common Shares, or, in each case, any other series of shares of
         the Corporation  ranking subordinate to the shares of this Series as to
         dividends  and upon  liquidation)  shall be declared  and paid or a sum
         sufficient  for the payment  thereof set aside for payment or any other
         distribution declared or made upon the Common Shares or any other class
         of shares of the Corporation ranking subordinate to or on a parity with
         the  shares of this  Series as to  dividends  or upon  liquidation.  No
         Common Shares or shares of any other class of shares of the Corporation
         ranking subordinate to or on a parity with the shares of this Series as
         to  dividends  or upon  liquidation  shall be  redeemed,  purchased  or
         otherwise acquired for any consideration (and no funds shall be paid to
         or made  available  for a sinking fund for the  redemption  of any such
         share  capital)  by the  Corporation  (except  by  conversion  into  or
         exchange  for  shares of the  Corporation  ranking  subordinate  to the
         shares of this Series as to dividends  and upon  liquidation  or except
         with respect to Common Shares that the Corporation has become obligated
         to redeem  prior to the  issuance of any shares of this Series upon the
         occurrence of specified  circumstances)  unless, in each case, the full
         accumulated  Dividends  shall  have  been  paid or  declared  and a sum
         sufficient  for the payment  thereof set aside for payment.  Holders of
         shares of this Series  shall not be entitled to any  dividend,  whether
         payable in cash,  property or stock, in excess of the full Dividends on
         such shares.




                                       C-4

<PAGE>



                  "(f)  Upon  conversion  of any  shares  of this  Series by any
         holder thereof pursuant to Section 7 hereof,  any Dividends accrued and
         payable to such holder shall be  forfeited  and the  Corporation  shall
         have no further  obligation to such holder of shares of this Series for
         such accumulated Dividends.

                  "3.  Liquidation  Rights. (a) In the event of any voluntary or
         involuntary dissolution,  liquidation,  or winding up of the affairs of
         the  Corporation,  after  payment or provision for payment of the debts
         and other  liabilities of the Corporation and any preferential  amounts
         payable with respect to securities of the Corporation  ranking prior to
         the shares of this Series ("Senior Preferred  Shares"),  the holders of
         shares of this Series shall be entitled to receive out of the assets of
         the Corporation available for distribution to shareholders,  before any
         distribution  of assets is made to holders of the Common  Shares or any
         other  share  capital of the  Corporation  ranking  subordinate  to the
         shares of this Series, a liquidating distribution in an amount equal to
         the  greater of (i) U.S.  $1.35 per share of this Series plus an amount
         equal  to any  accrued  and  unpaid  Dividends  (including  accumulated
         Dividends,  whether  or not  declared)  to and  including  the  date of
         distribution or (ii) the amount  distributable to the holders of shares
         of this Series as if such  holders had  converted  their shares of this
         Series into  Common  Shares  pursuant  to Section 7 hereof  immediately
         prior to such dissolution,  liquidation or winding up of the affairs of
         the Corporation (plus accumulated Dividends,  whether or not declared).
         Amounts  payable  pursuant to clause (i) or (ii) of this  Section  3(a)
         shall be distributed ratably among the holders of shares of this Series
         in  proportion  to the  number  of shares of this  Series  held.  After
         payment to the  holders of shares of this  Series of the full amount to
         which such  holders  are  entitled as set forth  above,  the holders of
         shares  of this  Series  shall  have no  right  or  claim to any of the
         remaining assets of the Corporation.

                  "(b) If upon any such  dissolution,  liquidation or winding up
         of the  affairs  of the  Corporation,  the  assets  of the  Corporation
         distributable  among  the  holders  of shares  of this  Series  and the
         holders  of all other  classes  or series of shares of the  Corporation
         ranking  on  a  parity  with  the  shares  of  this  Series   shall  be
         insufficient  to permit the  payment  to them of the full  preferential
         amounts  to which  they are  entitled,  then the  entire  assets of the
         Corporation so to be distributed shall be distributed ratably among the
         holders of shares of this  Series  and such other  classes or series of
         shares of the  Corporation in proportion to the sum of the  accumulated
         dividends and the liquidation preferences per share.

                  "(c) The sale, conveyance, mortgage, pledge or lease of all or
         substantially all the assets of the Corporation shall be deemed to be a
         liquidation,  dissolution or winding up of the Corporation for purposes
         of this Section 3.

                  "4. Optional Redemption. (a) The shares of this Series may not
         be redeemed before the fifth  anniversary of the Initial Issuance Date.
         Thereafter,  the shares of this Series shall be redeemable  (subject to
         subsection 4(d) below) at the option of the Corporation, in whole or in
         part, at the redemption price, which shall be an amount equal



                                       C-5

<PAGE>



         to the  greater  of (i) U.S.  $1.35 per share of this  Series  plus the
         amount of any  accrued  and unpaid  Dividends  per share of this Series
         (including accumulated Dividends,  whether or not declared) or (ii) the
         Fair Market  Value of a share of this Series (as  defined  below).  For
         purposes  hereof,  the  Fair  Market  Value  shall be  determined  by a
         nationally  recognized  independent  investment  banking firm  mutually
         agreed to by the Corporation and the holder of a majority of the shares
         of  this  Series  then  outstanding,   whose   determination  shall  be
         conclusive.

                  "(b) (i) In case the Corporation  shall desire to exercise its
         right to redeem any shares of this Series, it shall give notice of such
         redemption  to holders of the shares of this  Series to be  redeemed as
         hereinafter provided in this Section 4(b).

                           "(ii)  Notice  of  redemption  shall  be given to the
                  holders  of shares of this  Series to be  redeemed  by mailing
                  such notice by  first-class  mail to their last  addresses  as
                  they shall  appear  upon the  register  for the shares of this
                  Series not less than 120 calendar days prior to the date fixed
                  for redemption.

                           "(iii)  Each  such  notice  of  redemption  (A) shall
                  specify the date fixed for redemption and the redemption price
                  at which shares of this Series are to be  redeemed,  (B) shall
                  state that payment of the  redemption  price for the shares of
                  this  Series  to be  redeemed  will be  made at the  principal
                  executive  offices of the Corporation,  upon  presentation and
                  surrender  of  certificates  representing  such shares of this
                  Series, and (C) if less than all the shares of this Series are
                  to be  redeemed,  shall  specify  the number of shares of this
                  Series  held by  each  holder  to be  redeemed.  In  case  any
                  certificate  representing  shares  of  this  Series  is  to be
                  redeemed in part only, the notice of redemption  which relates
                  to such  certificate  shall state the number of shares of this
                  Series  represented  by such  certificate  to be redeemed  and
                  shall  state  that on and  after  the  redemption  date,  upon
                  surrender  of  such   certificate,   a  new   certificate   or
                  certificates  for a number of shares of this  Series  equal to
                  the unredeemed portion thereof will be issued.

                           "(iv) If less than all the shares of this  Series are
                  to be redeemed,  the Corporation  shall effect such redemption
                  pro rata  among the  holders  thereof  (based on the number of
                  shares  of  this   Series  held  on  the  date  of  notice  of
                  redemption).

                  "(c) (i) If the giving of notice of redemption shall have been
         completed  as provided  above,  the shares of this Series  specified in
         such  notice  shall  become  redeemable,  and shall be  redeemed by the
         Corporation   upon   presentation  and  surrender  of  the  certificate
         representing  such shares,  on the date and at the place stated in such
         notice at the  redemption  price,  and on and after such date fixed for
         redemption,  notwithstanding  that any  certificate  for shares of this
         Series so called for  redemption  shall not have been  surrendered  for
         cancellation,  unless there shall have been a default in payment of the
         redemption price, all shares of this Series called for redemption shall
         no longer be deemed to be  outstanding,  and all rights with respect to
         such shares of this



                                       C-6

<PAGE>



         Series shall forthwith cease and terminate except only the right of the
         holders thereof to receive from the  Corporation the redemption  price,
         without interest,  of the shares to be redeemed,  and such shares shall
         not  thereafter be  transferred  on the books of the  Corporation or be
         deemed to be outstanding for any purpose whatsoever.

                           "(ii)   Upon    presentation   of   any   certificate
                  representing shares of this Series only a portion of which are
                  to be redeemed,  the Corporation shall  immediately  issue, at
                  its expense,  a new certificate or  certificates  representing
                  the shares of this Series not redeemed.

                  "(d)  Except  as  provided  in   paragraph   (a)  above,   the
         Corporation  shall have no right to redeem  the shares of this  Series.
         Any shares of this Series so  redeemed  shall be  permanently  retired,
         shall  no  longer  be  deemed  outstanding  and  shall  not  under  any
         circumstances  be reissued,  and the  Corporation may from time to time
         take such  appropriate  corporate  action as may be necessary to reduce
         the  authorized  shares  of this  Series  accordingly.  Nothing  herein
         contained  shall  prevent or restrict the purchase by the  Corporation,
         from time to time either at public or private sale, of the whole or any
         part of the  shares  of this  Series  at such  price or  prices  as the
         Corporation may determine, subject to the provisions of applicable law.

                  "5. No Mandatory  Redemption.  The shares of this Series shall
         not be subject to mandatory redemption by the Corporation.

                  "6. Voting Rights.  (a) Each issued and  outstanding  share of
         this  Series  shall be  entitled  to the  number of votes  equal to the
         number of Common Shares of the  Corporation  into which each such share
         of this Series is  convertible  (as adjusted from time to time pursuant
         to  Section  7(a)  hereof),  at each  meeting  of  shareholders  of the
         Corporation  with  respect  to any and  all  matters  presented  to the
         shareholders  of the  Corporation  for their  action or  consideration.
         Except as provided by law, by the pro visions of paragraph (b) below or
         by the provisions  establishing  any other series of preferred stock of
         the Corporation,  holders of the shares of this Series and of any other
         outstanding  preferred  stock shall vote  together  with the holders of
         Common Shares as a single class.

                  (b) In  addition  to any other  rights  provided  by law,  the
         Corporation shall not amend,  alter or repeal the preferences,  special
         rights  or other  powers  of the  shares  of this  Series  or any other
         provision  of  the  Corporation's   constating   documents  that  would
         adversely  affect  the  rights  of the  holders  of the  shares of this
         Series,  including,  without limitation,  any increase in the number of
         shares of this Series,  without the written consent or affirmative vote
         of the holders of at least  66-2/3% of the then  outstanding  aggregate
         number  of such  adversely  affected  shares of this  Series,  given in
         writing or by vote at a meeting,  consenting or voting (as the case may
         be)  separately as a class.  For this  purpose,  the  authorization  or
         issuance  of any  series of  preferred  stock of the  Corporation  with
         preference  or priority  over,  or being on a parity with the shares of
         this Series as to the



                                       C-7

<PAGE>



         right  to  receive  either  dividends  or  amounts  distributable  upon
         liquidation,  dissolution  or  winding up of the  Corporation  shall be
         deemed to adversely affect the shares of this Series.

                  "7. Conversion. (a) Each share of this Series may be converted
         at any  time,  at the  option  of the  holder  thereof,  in the  manner
         hereinafter provided,  into fully-paid and nonassessable Common Shares,
         provided,  however, that on any redemption of any shares of this Series
         or any liquidation of the  Corporation,  the right of conversion  shall
         terminate  at the  close  of  business  on the full  business  day next
         preceding the date fixed for such  redemption or for the payment of any
         amounts  distributable  on  liquidation to the holders of the shares of
         this  Series.  The  initial  conversion  rate for shares of this Series
         shall be one Common Share for each one share of this Series surrendered
         for conversion,  representing an initial conversion price (for purposes
         of Section 7(g)) of U.S.  $1.35 per share of the  Corporation's  Common
         Shares (hereinafter, the "Conversion Price"). The applicable conversion
         rate and  Conversion  Price from time to time in effect are  subject to
         adjustment as hereinafter provided.

                  "(b)  Whenever  the  Conversion  Price  shall be  adjusted  as
         provided in Section 7(g) hereof,  the Corporation  shall forthwith file
         at each  office  designated  for the  conversion  of the shares of this
         Series,  a statement,  signed by any of the Chairman of the Board,  the
         President,  any Vice  President or the  Treasurer  of the  Corporation,
         showing in reasonable  detail the facts requiring such adjustment.  The
         Corporation   shall  also  cause  a  notice   setting  forth  any  such
         adjustments to be sent by mail, first class,  postage prepaid,  to each
         record holder of shares of this Series at his or its address  appearing
         on  the  stock  register.  If  such  notice  relates  to an  adjustment
         resulting from an event referred to in paragraph 7(g)(vii), such notice
         shall be  included  as part of the  notice  required  to be mailed  and
         published under the provisions of paragraph 7(g)(vii) hereof.

                  "(c) The right of conversion  shall be exercised by the holder
         by the surrender of the certificates representing shares of this Series
         to be converted to the  Corporation at any time during normal  business
         hours at the office or agency then  maintained by it for the conversion
         of shares of this  Series (the  "Conversion  Office"),  accompanied  by
         written notice to the Corporation of such holder's  election to convert
         and, if so required by the  Corporation or any conversion  agent, by an
         instrument of transfer,  in form satisfactory to the Corporation and to
         any conversion agent, duly executed by the registered holder or by such
         holder's  duly  authorized  attorney,  and transfer tax stamps or funds
         therefor, if required pursuant to Section 7(k).

                  "(d) As  promptly  as  practicable  after  the  surrender  for
         conversion of one or more certificates  representing any shares of this
         Series in the manner  provided in Section  7(c) and the payment in cash
         of  any  amount  required  by  the  provisions  of  Section  7(k),  the
         Corporation  will deliver or cause to be  delivered  at the  Conversion
         Office to or upon the  written  order of the holder of such  shares,  a
         certificate  or  certificates  representing  the number of full  Common
         Shares issuable upon such conversion, issued in such name or



                                       C-8

<PAGE>



         names as such holder may direct,  subject to any applicable contractual
         restrictions  and any  restrictions  imposed by  applicable  securities
         laws.  Such  conversion  shall be deemed to have been made  immediately
         prior  to the  close  of  business  on the  date of such  surrender  of
         certificates  representing  shares of this  Series in proper  order for
         conversion,  and all rights of the holder of such shares as a holder of
         such  shares  shall  cease at such  time,  and the person or persons in
         whose name or names the  certificates  for such Common Shares are to be
         issued  shall be treated for all  purposes as having  become the record
         holder or holders  thereof at such time;  provided,  however,  that any
         such  surrender  on any  date  when  the  stock  transfer  books of the
         Corporation  shall be closed shall  constitute the person or persons in
         whose name or names the  certificates  for such Common Shares are to be
         issued  as the  record  holder  or  holders  thereof  for all  purposes
         immediately  prior to the close of business on the next  succeeding day
         on which such stock transfer books are opened.

                  "(e) "Upon conversion in the manner provided in this Section 7
         of only a portion of the number of shares of this Series represented by
         a certificate so surrendered  for  conversion,  the  Corporation  shall
         issue and deliver or cause to be delivered at the Conversion  Office to
         or  upon  the  written  order  of  the  holder  of the  certificate  so
         surrendered for conversion,  at the expense of the  Corporation,  a new
         certificate or certificates  representing  the number of shares of this
         Series  representing  the  unconverted  portion of the  certificate  so
         surrendered,  issued in such name or names as such  holder may  direct,
         subject to any applicable contractual restrictions and any restrictions
         imposed by applicable securities laws.

                  "(f)  All  shares  of  this  Series   which  shall  have  been
         surrendered for conversion as herein provided shall no longer be deemed
         to be outstanding and all rights with respect to such shares, including
         the rights,  if any, to receive  notices and to vote,  shall  forthwith
         cease and  terminate  except  only the right of the  holder  thereof to
         receive Common Shares in exchange  therefor.  Any shares of this Series
         so  converted  shall be retired and canceled and shall not be reissued,
         and the Corporation may from time to time take such appropriate  action
         as may be  necessary  to reduce the  authorized  shares of this  Series
         accordingly.

                  (g)      Anti-Dilution Provisions.

                  (i)  In  order  to  prevent  dilution  of  the  right  granted
hereunder, the Conversion Price shall be subject to adjustment from time to time
in accordance  with this  paragraph  7(g)(i).  At any given time the  Conversion
Price  shall be that  dollar (or part of a dollar)  amount the  payment of which
shall be  sufficient  at the  given  time to  acquire  one  Common  Share of the
Corporation  upon  conversion of shares of this Series.  Upon each adjustment of
the Conversion  Price  pursuant to this Section 7(g),  the registered  holder of
shares of this Series shall thereafter be entitled to acquire upon exercise,  at
the Conversion Price resulting from such adjustment, the number of Common Shares
of the  Corporation  obtainable by multiplying  the  Conversion  Price in effect
immediately prior to such adjustment by the number of shares of Common Shares of
the Corporation acquirable immediately prior to such adjustment and dividing the
product thereof



                                       C-9

<PAGE>



by the Conversion  Price  resulting from such  adjustment.  For purposes of this
Section 7(g), the term "Number of Common Shares Deemed Outstanding" at any given
time shall mean the sum of (x) the number of shares of the Corporation's  Common
Shares  outstanding  at such  time,  (y) the  number  of  Common  Shares  of the
Corporation  issuable assuming conversion at such time of all outstanding shares
of the  Corporation's  other series of convertible  preferred stock, if any, and
(z) the number of Common Shares of the  Corporation  deemed to be outstanding at
such time under subparagraphs 7(g)(ii)(1) to (8), inclusive.

                  (ii)  Except as provided in  paragraph  7(g)(iii)  or 7(g)(vi)
below,  if and whenever on or after the Initial  Issuance Date, the  Corporation
shall issue or sell, or shall in accordance  with  subparagraphs  7(g)(ii)(1) to
(8), inclusive, be deemed to have issued or sold (such issuance or sale, whether
actual  or  deemed,  the  "Triggering  Transaction")  any  Common  Shares  for a
consideration per share less than

                  (I) (if the Common Shares are not traded on the New York Stock
         Exchange,  the American Stock Exchange or the Nasdaq  National  Market)
         the Conversion  Price in effect  immediately  prior to the time of such
         issuance  or  sale,  then  forthwith  upon  such  issuance  or sale the
         Conversion  Price shall,  subject to  subparagraphs  (1) to (8) of this
         Section 7(g)(ii), be reduced to the Conversion Price (calculated to the
         nearest tenth of a cent) determined by dividing: (i) an amount equal to
         the sum of (x) the product  derived by multiplying the Number of Common
         Shares  Deemed   Outstanding   immediately  prior  to  such  Triggering
         Transaction  by the  Conversion  Price  then in  effect,  plus  (y) the
         consideration,  if any,  received by the Company upon  consummation  of
         such Triggering Transaction,  by (ii) an amount equal to the sum of (x)
         the Number of Common Shares  Deemed  Outstanding  immediately  prior to
         such Triggering Transaction plus (y) the number of Common Shares issued
         (or deemed to be issued in accordance with subparagraphs 7(g)(ii)(1) to
         (8)) in connection with the Triggering Transaction; or

                  (II) (if the  Common  Shares  are traded on the New York Stock
         Exchange,  the American Stock Exchange or the Nasdaq  National  Market)
         the average Market Price for the ten trading days immediately preceding
         such issuance or sale, then forthwith upon such Triggering Transaction,
         the Conversion Price shall, subject to subparagraphs (1) to (8) of this
         Section 7(g)(ii), be reduced to the Conversion Price (calculated to the
         nearest tenth of a cent) determined by multiplying the Conversion Price
         in effect immediately prior to the time of such Triggering  Transaction
         by a  fraction,  the  numerator  of  which  shall be the sum of (x) the
         Number of Common Shares Deemed  Outstanding  immediately  prior to such
         Triggering  Transaction  and (y) the number of Common  Shares which the
         aggregate  consideration  received by the Company upon such  Triggering
         Transaction  would  purchase  at the average  Market  Price for the ten
         trading days immediately preceding such Triggering Transaction, and the
         denominator  of which  shall be the  Number  of  Common  Shares  Deemed
         Outstanding immediately after such Triggering Transaction.

                  For  purposes of  determining  the adjusted  Conversion  Price
under this paragraph 7(g)(ii),  the following subsections (1) to (8), inclusive,
shall be applicable:



                                      C-10

<PAGE>



                           (1) In case the  Corporation at any time shall in any
                  manner  grant  (whether   directly  or  by  assumption  in  an
                  amalgamation  or otherwise)  any rights to subscribe for or to
                  purchase, or any options for the purchase of, Common Shares or
                  any stock or other securities convertible into or exchangeable
                  for Common  Shares (such rights or options being herein called
                  "Options"  and  such  convertible  or  exchangeable  stock  or
                  securities  being  herein  called  "Convertible  Securities"),
                  whether  or not  such  Options  or the  right  to  convert  or
                  exchange  any  such  Convertible  Securities  are  immediately
                  exercisable,  and the price  per  share  for which the  Common
                  Shares are  issuable  upon  exercise,  conversion  or exchange
                  (determined by dividing (x) the total amount, if any, received
                  or  receivable by the  Corporation  as  consideration  for the
                  granting  of  such  Options,  plus  the  aggregate  amount  of
                  additional  consideration  payable to the Corporation upon the
                  exercise  of all  such  Options,  plus,  in the  case  of such
                  Options which relate to Convertible Securities,  the aggregate
                  amount of additional  consideration,  if any, payable upon the
                  issue  or sale of such  Convertible  Securities  and  upon the
                  conversion  or  exchange  thereof,  by (y) the  total  maximum
                  number of Common  Shares  issuable  upon the  exercise of such
                  Options or the  conversion  or  exchange  of such  Convertible
                  Securities)  shall be less than the  average  Market  Price in
                  effect for the ten trading days immediately  prior to the time
                  of the  granting  of such  Option  (if the  Common  Shares are
                  traded on the New York  Stock  Exchange,  the  American  Stock
                  Exchange  or the Nasdaq  National  Market)  or the  Conversion
                  Price in effect immediately prior to the time of such issuance
                  or sale (if the  Common  Shares are not traded on the New York
                  Stock  Exchange,  the  American  Stock  Exchange or the Nasdaq
                  National  Market),  then the  total  maximum  amount of Common
                  Shares  issuable  upon the exercise of such Options or, in the
                  case  of  Options  for   Convertible   Securities,   upon  the
                  conversion or exchange of such Convertible  Securities,  shall
                  (as of the date of granting  of such  Options) be deemed to be
                  outstanding   and  to  have  been   issued  and  sold  by  the
                  Corporation  for such price per share.  No  adjustment  of the
                  Conversion  Price  shall be made upon the actual  issuance  of
                  such Common  Shares or such  Convertible  Securities  upon the
                  exercise  of such  Options,  except as  otherwise  provided in
                  subparagraph (3) below.

                           (2) In case the  Corporation at any time shall in any
                  manner  issue  (whether   directly  or  by  assumption  in  an
                  amalgamation or otherwise) or sell any Convertible Securities,
                  whether or not the rights to  exchange  or convert  thereunder
                  are immediately exercisable, and the price per share for which
                  Common  Shares are issuable  upon such  conversion or exchange
                  (determined  by  dividing  (x) the total  amount  received  or
                  receivable by the Corporation as  consideration  for the issue
                  or sale of such  Convertible  Securities,  plus the  aggregate
                  amount of  additional  consideration,  if any,  payable to the
                  Corporation  upon the conversion or exchange  thereof,  by (y)
                  the total maximum  number of Common  Shares  issuable upon the
                  conversion  or  exchange of all such  Convertible  Securities)
                  shall be less than the average  Market Price in effect for the
                  ten-day trading period  immediately  prior to the time of such
                  issue or sale (if the Common Shares are



                                      C-11

<PAGE>



                  traded on the New York  Stock  Exchange,  the  American  Stock
                  Exchange  or the Nasdaq  National  Market)  or the  Conversion
                  Price in effect immediately prior to the time of such issuance
                  or sale (if the  Common  Shares are not traded on the New York
                  Stock  Exchange,  the  American  Stock  Exchange or the Nasdaq
                  National  Market),  then the  total  maximum  number of Common
                  Shares  issuable  upon  conversion  or  exchange  of all  such
                  Convertible  Securities  shall (as of the date of the issue or
                  sale  of  such   Convertible   Securities)  be  deemed  to  be
                  outstanding   and  to  have  been   issued  and  sold  by  the
                  Corporation  for such price per share.  No  adjustment  of the
                  Conversion  Price  shall be made upon the actual  issuance  of
                  such Common  Shares upon exercise of the rights to exchange or
                  convert under such Convertible Securities, except as otherwise
                  provided in subparagraph (3) below.

                           (3) If the purchase price provided for in any Options
                  referred to in subparagraph (1), the additional consideration,
                  if  any,  payable  upon  the  conversion  or  exchange  of any
                  Convertible  Securities  referred to in  subparagraphs  (1) or
                  (2), or the rate at which any Convertible  Securities referred
                  to  in  subparagraph  (1)  or  (2)  are  convertible  into  or
                  exchangeable for Common Shares shall change at any time (other
                  than  under or by reason of  provisions  designed  to  protect
                  against dilution of the type set forth in paragraphs  7(g)(ii)
                  or 7(g)(iv)),  the  Conversion  Price in effect at the time of
                  such change shall  forthwith be readjusted  to the  Conversion
                  Price  which  would  have been in effect at such time had such
                  Options or Convertible  Securities still outstanding  provided
                  for such changed purchase price,  additional  consideration or
                  rate,  as the case  may be,  at the  time  initially  granted,
                  issued or sold.  If the  purchase  price  provided  for in any
                  Option  referred to in  subparagraph  (1) or the rate at which
                  any Convertible Securities referred to in subparagraphs (1) or
                  (2) are convertible  into or  exchangeable  for Common Shares,
                  shall be reduced at any time under or by reason of  provisions
                  with respect  thereto  designed to protect  against  dilution,
                  then  in  case of the  delivery  of  Common  Shares  upon  the
                  exercise of any such Option or upon  conversion or exchange of
                  any such  Convertible  Security,  the Conversion Price then in
                  effect   hereunder   shall   forthwith  be  adjusted  to  such
                  respective  amount as would have been obtained had such Option
                  or  Convertible  Security  never been issued as to such Common
                  Shares and had adjustments  been made upon the issuance of the
                  Common Shares delivered as aforesaid,  but only if as a result
                  of  such  adjustment  the  Conversion  Price  then  in  effect
                  hereunder is hereby reduced.

                           (4)  On  the   expiration   of  any   Option  or  the
                  termination   of  any  right  to  convert  or   exchange   any
                  Convertible  Securities,  the Conversion  Price then in effect
                  hereunder shall forthwith be increased to the Conversion Price
                  which would have been in effect at the time of such expiration
                  or termination had such Option or Convertible  Securities,  to
                  the extent outstanding immediately prior to such expiration or
                  termination, never been issued.




                                      C-12

<PAGE>



                           (5) In case any Options shall be issued in connection
                  with the issue or sale of other securities of the Corporation,
                  together  comprising  one  integral  transaction  in  which no
                  specific  consideration  is  allocated  to such Options by the
                  parties  thereto,  such  Options  shall be deemed to have been
                  issued without consideration.

                           (6) In case any Common Shares, Options or Convertible
                  Securities  shall be  issued  or sold or  deemed  to have been
                  issued or sold for cash, the  consideration  received therefor
                  shall be deemed to be the amount  received by the  Corporation
                  therefor  (before  deduction  for  expenses  or  underwriters'
                  discounts or  commissions  related to such issue or sale).  In
                  case any  Common  Shares,  Options or  Convertible  Securities
                  shall be issued or sold for a  consideration  other than cash,
                  the amount of the  consideration  other than cash  received by
                  the Corporation shall be the fair value of such  consideration
                  as  determined  in good faith by the Board of Directors of the
                  Corporation.

                           (7) In case the Corporation  shall declare a dividend
                  or make any other  distribution  upon the share capital of the
                  Corporation payable in Common Shares,  Options, or Convertible
                  Securities,  then in such case any Common  Shares,  Options or
                  Convertible  Securities,  as the  case  may  be,  issuable  in
                  payment of such  dividend or  distribution  shall be deemed to
                  have been issued or sold without consideration.

                           (8) For purposes of this paragraph 7(g)(ii),  in case
                  the  Corporation  shall  take a record of the  holders  of its
                  Common Shares for the purpose of entitling them (x) to receive
                  a dividend  or other  distribution  payable in Common  Shares,
                  Options or in Convertible Securities,  or (y) to subscribe for
                  or purchase Common Shares, Options or Convertible  Securities,
                  then such  record  date  shall be deemed to be the date of the
                  issue or sale of the Common  Shares deemed to have been issued
                  or sold upon the declaration of such dividend or the making of
                  such other  distribution  or the date of the  granting of such
                  right or subscription or purchase, as the case may be.

                  (iii) In the event the  Corporation  shall  declare a dividend
upon the Common Shares (other than a dividend  payable in Common Shares  covered
by subparagraph  7(g)(ii)(7))  payable  otherwise than out of earnings or earned
surplus, determined in accordance with generally accepted accounting principles,
including the making of appropriate  deductions for minority interests,  if any,
in subsidiaries (herein referred to as "Liquidating  Dividends"),  then, as soon
as possible after the conversion of any shares of this Series,  the  Corporation
shall,  subject to applicable  law, pay to the person  converting such shares of
this Series an amount equal to the aggregate  value at the time of such exercise
of all  Liquidating  Dividends  (including  but not limited to the Common Shares
which would have been issued at the time of such earlier  exercise and all other
securities  which would have been issued with  respect to such Common  Shares by
reason of stock splits,  stock dividends,  amalgamations or reorganizations,  or
for any other reason).



                                      C-13

<PAGE>



For the  purposes of this  paragraph  7(g)(iii),  a dividend  other than in cash
shall be considered payable out of earnings or earned surplus only to the extent
that such  earnings or earned  surplus  are charged an amount  equal to the fair
value of such dividend as determined in good faith by the Board.

                  (iv) In case  the  Corporation  shall  at any  time  subdivide
(other than by means of a dividend payable in Common Shares covered by paragraph
7(g)(ii)(7)) its outstanding  Common Shares into a greater number of shares, the
Conversion  Price  in  effect  immediately  prior to such  subdivision  shall be
proportionately reduced, and, conversely,  in case the outstanding Common Shares
of the  Corporation  shall be  combined  into a smaller  number of  shares,  the
Conversion  Price  in  effect  immediately  prior to such  combination  shall be
proportionately increased.

                  (v) If any capital  reorganization or  reclassification of the
share  capital of the  Corporation,  or  amalgamation  of the  Corporation  with
another  corporation,  or the sale of all or substantially  all of its assets to
another  corporation  shall be  effected  in such a way that  holders  of Common
Shares shall be entitled to receive  stock,  securities,  cash or other property
with respect to or in exchange for Common  Shares,  then, as a condition of such
reorganization,  reclassification,  amalgamation  or sale,  lawful and  adequate
provision  shall be made whereby the holders of shares of this Series shall have
the right to acquire and receive upon  conversion  of the shares of this Series,
which  right  shall be prior to the rights of the  holders  of stock  ranking on
liquidation  junior to this  Series  (but  after and  subject  to the  rights of
holders of Senior Preferred Shares,  if any), such shares of stock,  securities,
cash or other  property  issuable  or  payable  (as part of the  reorganization,
reclassification,  amalgamation or sale) with respect to or in exchange for such
number of  outstanding  Common  Shares  of the  Corporation  as would  have been
received upon  conversion of the shares of this Series at the  Conversion  Price
then in effect.  The Corporation will not effect any such  amalgamation or sale,
unless prior to the  consummation  thereof the  amalgamated  corporation  or the
corporation  purchasing such assets shall assume by written instrument mailed or
delivered  to the  holders of the shares of this  Series at the last  address of
each such holder  appearing on the books of the  Corporation,  the obligation to
deliver to each such holder such  shares of stock,  securities  or assets as, in
accordance  with the  foregoing  provisions,  such  holder  may be  entitled  to
receive. If a purchase,  tender or exchange offer is made to and accepted by the
holders of more than 50% of the  outstanding  Common Shares of the  Corporation,
the Corporation shall not effect any amalgamation or sale with the person having
made such offer or with any Affiliate (as defined below) of such person,  unless
prior to the consummation of such amalgamation or sale the holders of the shares
of this Series shall have been given a reasonable  opportunity  to then elect to
receive  upon the  conversion  of the  shares of this  Series  either the stock,
securities  or assets then  issuable  with  respect to the Common  Shares of the
Corporation or the stock,  securities or assets,  or the  equivalent,  issued to
previous  holders  of the  Common  Shares in  accordance  with such  offer.  For
purposes  hereof,  the term  "Affiliate"  with respect to any given person shall
mean any person  controlling,  controlled  by or under  common  control with the
given person.




                                      C-14

<PAGE>



                  (vi) The  provisions  of this  Section 7(g) shall not apply to
any Common Shares issued,  issuable or deemed  outstanding  under  subparagraphs
7(g)(ii)(1)  to (8) inclusive:  (i) to any person  pursuant to any stock option,
stock  purchase or similar plan or  arrangement  for the benefit of employees of
the Corporation or its  subsidiaries  in effect on the Initial  Issuance Date or
thereafter  adopted by the Board of Directors of the Corporation,  (ii) pursuant
to options,  warrants and conversion rights in existence on the Initial Issuance
Date,  (iii) upon exercise of the warrants of the Corporation  issued to Warburg
pursuant to the Warrant  Agreement or (iv) on  conversion  of the shares of this
Series or the sale of any additional shares of this Series.

                  (vii) In the event that:

                  (1) the  Corporation  shall declare any cash dividend upon its
         Common Shares, or

                  (2) the Corporation shall declare any dividend upon its Common
         Shares  payable  in  stock  or  make  any  special  dividend  or  other
         distribution to the holders of its Common Shares, or

                  (3) the Corporation  shall offer for  subscription pro rata to
         the holders of its Common Shares any additional  shares of stock of any
         class or other rights, or

                  (4)   there   shall   be   any   capital   reorganization   or
         reclassification of the share capital of the Corporation, including any
         subdivision  or  combination  of  its  outstanding  Common  Shares,  or
         amalgamation of the Corporation  with, or sale of all or  substantially
         all of its assets to, another corporation, or

                  (5) there shall be a  voluntary  or  involuntary  dissolution,
         liquidation or winding up of the Corporation;

then, in connection with such event,  the Corporation  shall give to the holders
of the shares of this Series:

          (A)  at least  twenty (20) days' prior  written  notice of the date on
               which the books of the Corporation  shall close or a record shall
               be taken for such dividend,  distribution or subscription  rights
               or for  determining  rights  to  vote  in  respect  of  any  such
               reorganization,     reclassification,     amalgamation,     sale,
               dissolution, liquidation or winding up; and

          (B)  in  the  case  of  any  such  reorganization,   reclassification,
               amalgamation,  sale,  dissolution,  liquidation or winding up, at
               least twenty (20) days' prior written notice of the date when the
               same shall take place.

Such notice in accordance with the foregoing  clause (A) shall also specify,  in
the case of any such dividend,  distribution or subscription rights, the date on
which the holders of Common



                                      C-15

<PAGE>



Shares  shall be  entitled  thereto,  and such  notice  in  accordance  with the
foregoing  clause (B) shall also specify the date on which the holders of Common
Shares shall be entitled to exchange their Common Shares for securities or other
property deliverable upon such reorganization,  reclassification,  amalgamation,
sale,  dissolution,  liquidation  or winding  up, as the case may be.  Each such
written notice shall be given by first class mail, postage prepaid, addressed to
the  holders of the shares of this  Series at the address of each such holder as
shown on the books of the Corporation.

                  (viii)  If at any time or from  time to time on or  after  the
Initial Issuance Date, the Corporation  shall grant,  issue or sell any Options,
Convertible  Securities or rights to purchase  property (the "Purchase  Rights")
pro rata to the record holders of the Common Shares of the  Corporation and such
grants,  issuances  or sales do not result in an  adjustment  of the  Conversion
Price under paragraph 7(g)(ii) hereof, then each holder of shares of this Series
shall be entitled to acquire  (within  thirty (30) days after the later to occur
of the initial  exercise date of such Purchase  Rights or receipt by such holder
of the notice concerning  Purchase Rights to which such holder shall be entitled
under paragraph 7(g)(vii)) and upon the terms applicable to such Purchase Rights
either:

          (A)  the  aggregate  Purchase  Rights  which  such  holder  could have
               acquired  if it had held the number of Common  Shares  acquirable
               upon conversion of shares of this Series  immediately  before the
               grant, issuance or sale of such Purchase Rights; provided that if
               any Purchase Rights were  distributed to holders of Common Shares
               without the payment of additional  consideration by such holders,
               corresponding   Purchase  Rights  shall  be  distributed  to  the
               exercising  holders  of the  shares  of  this  Series  as soon as
               possible  after such  exercise and it shall not be necessary  for
               the exercising  holder of the shares of this Series  specifically
               to request delivery of such rights; or

          (B)  in the event that any such Purchase  Rights shall have expired or
               shall expire prior to the end of said thirty (30) day period, the
               number of Common  Shares or the  amount of  property  which  such
               holder  could have  acquired  upon such  exercise  at the time or
               times at which  the  Corporation  granted,  issued  or sold  such
               expired Purchase Rights.

                  (ix) If any event  occurs as to which,  in the  opinion of the
Board,  the  provisions  of this Section 7(g) are not strictly  applicable or if
strictly  applicable  would not fairly  protect the rights of the holders of the
shares of this Series in accordance with the essential  intent and principles of
such  provisions,  then the Board shall make an adjustment in the application of
such provisions,  in accordance with such essential intent and principles, so as
to protect such rights as aforesaid,  but in no event shall any adjustment  have
the effect of increasing the Conversion Price as otherwise  determined  pursuant
to  any of the  provisions  of  this  Section  7(g)  except  in  the  case  of a
combination of shares of a type  contemplated in paragraph  7(g)(iv) and then in
no event to an amount larger than the Conversion  Price as adjusted  pursuant to
paragraph 7(g)(iv).




                                      C-16

<PAGE>



                  "(h) No  fractional  Common  Shares  shall be issued  upon the
         conversion  of any share or shares of this  Series.  If any  fractional
         interest in a Common Share  would,  except for the  provisions  of this
         Section 7(h), be deliverable upon the conversion of any share or shares
         of this  Series,  the  Corporation  shall  in lieu  of  delivering  the
         fractional  Common Share therefor  satisfy such fractional  interest by
         payment  to the  holder  of such  surrendered  share or  shares of this
         Series of an amount in cash equal (computed to the nearest cent) to the
         current market value of such fractional interest, computed on the basis
         of  the  Market  Price  of  the  Common  Shares  on the  date  of  such
         conversion,  provided,  however,  that no  amount  shall be paid by the
         Corporation to such holder of less than U.S. $5.00.

                  "(i) The Corporation shall be entitled to effect the mandatory
         conversion,  in whole or in  part,  of the  shares  of this  Series  in
         accordance with this Section 7 if all of the Triggering Conditions (set
         forth in Section 2(b) hereof) shall have been  satisfied as of the date
         of the notice described  below.  Upon such mandatory  conversion,  each
         share of this Series subject to such conversion shall be converted into
         Common Shares at the then effective  Conversion  Price for such shares.
         In case the  Corporation  shall desire to exercise the right to convert
         all or, as the case may be,  any  shares of this  Series in  accordance
         with the right to do so, it shall provide  notice to the holders of the
         shares of this Series to be converted as  hereinafter  provided in this
         Section 7(i).

                           "(i) A  notice  of  conversion  shall be given to the
         holders  of  shares  of this  Series  to be  converted  by  mailing  by
         first-class  mail to their last addresses as they shall appear upon the
         register  for  shares of this  Series not less than 120  calendar  days
         prior to the date fixed for conversion.

                           "(ii)  Each  such  notice  of  conversion  (A)  shall
         specify the date fixed for  conversion  and the number of Common Shares
         issuable to the holder of a share of this Series upon such  conversion,
         (B)  shall  state the  offices  or  agencies  to be  maintained  by the
         Corporation for the purpose of such conversion,  upon  presentation and
         surrender  of such  shares of this  Series and (C) if less than all the
         shares of this Series are to be converted,  shall specify the number of
         shares of this Series held by each  holder,  and the serial  numbers of
         the  certificates  thereof,  to be converted.  In case any  certificate
         representing shares of this Series is to be converted in part only, the
         notice of conversion which relates to such certificate  shall state the
         number of shares of this Series  represented by such  certificate to be
         converted and shall state that on and after the conversion  date,  upon
         surrender of such certificate,  a new certificate or certificates for a
         number  of  shares  of this  Series  equal to the  unconverted  portion
         thereof will be issued.

                  "(j)  The  Corporation  will at all  times  reserve  and  keep
         available,  solely for the  purposes of the  issuance of Common  Shares
         upon conversion of the shares of this Series, the full number of Common
         Shares as shall be issuable upon the conversion of all such outstanding
         shares of this Series.




                                      C-17

<PAGE>



                  "The  Corporation  will endeavor to comply with all securities
         laws regulating the offer and delivery of Common Shares upon conversion
         of the shares of this Series and, that if any Common Shares required to
         be reserved for purposes of conversion of the shares hereunder  require
         registration  with or approval of any governmental  authority under any
         U.S.  (federal or state) or Canadian law before such Common  Shares may
         be validly issued or delivered upon conversion,  the Corporation  will,
         in good faith and as expeditiously as possible, endeavor to secure such
         registration or approval, as the case may be.

                  "All Common  Shares which shall be issued upon  conversion  of
         the  shares  of this  Series  will  upon  issuance  be  fully  paid and
         nonassessable and not subject to preemptive rights.

                  "(k) The  issuance  of  certificates  for Common  Shares  upon
         conversion  of shares of this Series shall be made  without  charge for
         any stamp or other similar tax in respect of such issuance. However, if
         any such  certificate  is to be issued in a name other than that of the
         holder of record  of the share or shares of this  Series so  converted,
         the holder thereof shall pay to the  Corporation  the amount of any tax
         which may be  payable  in  respect  of any  transfer  involved  in such
         issuance or shall establish to the satisfaction of the Corporation that
         such tax has been paid or is not payable.

                  "(l) In case (A) the  Corporation  shall take any action which
         would require an adjustment in the number of Common Shares  issuable to
         holders of shares of this Series upon  conversion  thereof  pursuant to
         Section 7(g) above;  or (B) there shall be a voluntary  or  involuntary
         dissolution,   liquidation   or  winding  up  of  the  affairs  of  the
         Corporation;

         then the  Corporation  shall  cause to be given to the  holders  of the
         shares of this Series at least ten days prior to the applicable  record
         date hereinafter  specified, a notice of (X) the date on which a record
         is to be taken for the purpose of any dividend,  distribution  or grant
         to holders of Common Shares which would require such an adjustment, or,
         if a record is not to be taken,  the date as of which  the  holders  of
         Common Shares of record to be entitled to such dividend,  distribution,
         or  grant  are  to  be  determined  or  (Y)  the  date  on  which  such
         reorganization,   reclassification,   amalgamation,   sale,   transfer,
         dissolution, liquidation or winding up is expected to become effective,
         and the date as of which it is expected  that holders of Common  Shares
         of record  shall be  entitled  to  exchange  their  Common  Shares  for
         securities  or other  property or other  assets  deliverable  upon such
         reorganization,   reclassification,   amalgamation,   sale,   transfer,
         dissolution, liquidation, or winding up. Failure to give such notice or
         any defect  therein  shall not affect the  legality  or validity of any
         proceedings described in subparagraphs (A) or (B) of this Section 7(l).

                  "8. Hold Period. A holder of shares of this Series shall in no
         event sell or otherwise  transfer any of the shares of this Series,  or
         any Common Shares issued upon the due  conversion of any shares of this
         Series,  for a period of six months from the Initial Issuance Date. The
         Corporation shall issue or cause to be issued certificates representing
         shares of this Series,



                                      C-18

<PAGE>



and of Common  Shares  issued upon due  conversion of any shares of this Series,
which contain such legends as the  Corporation in its discretion  deems adequate
to reflect the hold period described in this Section 8.

                  "9.      Miscellaneous.

                  "(a)     For the purposes hereof:

                           "(i) the term  "outstanding",  when used in reference
                  to shares of this  Series,  shall mean  issued  shares of this
                  Series, excluding shares of this Series called for redemption;
                  and

                           "(ii) the term "subsidiary"  shall mean any company a
                  majority of whose outstanding voting capital stock (other than
                  directors'  qualifying  shares),  at the time as of which  any
                  determination  is being made,  shall be owned by the parent of
                  such company  either  directly or through other  subsidiaries;
                  and

                           "(iii)  any  shares of a series or class of shares of
                  the Corporation shall be deemed to rank:

                                    "(A) prior to shares of this Series, whether
                           or not the dividend rates,  dividend payment dates or
                           redemption or liquidation prices per share thereof be
                           different from those of shares of this Series, if the
                           holders of such shares of a series or class of shares
                           shall be entitled to receipt from the  Corporation of
                           dividends   or   of   amounts    distributable   upon
                           liquidation, dissolution or winding up, in preference
                           or priority to the holders of shares of this  Series,
                           as the case may be;

                                    "(B) on a parity  with or equal to shares of
                           this  Series,  whether  or not  the  dividend  rates,
                           dividend  payment dates or redemption or  liquidation
                           prices per share  thereof be different  from those of
                           shares of this Series,  if the holders of such shares
                           of a series or class of shares  shall be  entitled to
                           the receipt from the  Corporation  of dividends or of
                           amounts   distributable  upon  liquidation  to  their
                           respective  dividend  rates  or  liquidation  prices,
                           without  preference or priority one over the other as
                           between  the  holders  of such  shares of a series or
                           class of  shares  and the  holders  of shares of this
                           Series; and

                                    "(C)  subordinate  to shares of this Series,
                           whether or not the dividend rates,  dividend  payment
                           dates or redemption or  liquidation  prices per share
                           thereof  be  different  from  those of shares of this
                           Series,  if the rights of the  holders of such shares
                           of a series or class of shares  shall be  subordinate
                           to the rights of the holders of shares of this Series
                           in respect of the  receipt  from the  Corporation  of
                           dividends and of amounts



                                      C-19

<PAGE>



                           distributable   upon   liquidation,   dissolution  or
                           winding up, including, without limitation, the Common
                           Shares of the Corporation.

                  "(b) So long as any shares of this Series are outstanding,  in
         the  event  of any  conflict  between  the  provisions  hereof  and any
         corporate  document of the Corporation  (both as presently  existing or
         hereafter amended and supplemented) the provisions  hereof, as the same
         may be amended or supplemented, shall be and remain controlling.

                  "(c) The  holders of the shares of this  Series  shall have no
         preemptive rights.


         SECOND: That such determination of the designation, powers, preferences
and  the  relative   participating,   optional  and  other  special  rights  and
qualifications,  limitations and restrictions  thereof relating to such Series A
Convertible  Preferred  Shares  was duly made by the Board of  Directors  of the
Corporation  in  accordance  with the  provisions  of Section 27 of the Business
Corporations Act (Alberta).





                                      C-20

<PAGE>



         IN WITNESS  WHEREOF,  this Certificate has been signed by the President
and the Secretary of HealthCare Capital Corp, and the Corporation has caused its
corporate seal to be hereunto affixed, all as of the ____ day of January, 1998.


                                          HEALTHCARE CAPITAL CORP.



                                          By:________________________________
                                               Brandon M. Dawson
                                               Title:  President


[Corporate Seal]



Attest:



- ----------------------------------
William DeJong
Secretary





                                      C-21


<PAGE>





                             JOINT FILING AGREEMENT



          The undersigned hereby agree that this statement on Schedule 13D is,
and any amendment thereto signed by each of the undersigned shall be, filed on
behalf of each undersigned pursuant to and in accordance with the provisions of
Rule 13d-1(f)(1) under the Securities Exchange Act of 1934.



Dated:  December 31, 1997



                              WARBURG, PINCUS VENTURES, L.P.


                               By: Warburg, Pincus & Co.,
                                   General Partner



                              By: /s/Stephen Distler
                                   Stephen Distler, Partner



                              WARBURG, PINCUS & CO.



                              By: /s/Stephen Distler
                                   Stephen Distler, Partner



                              E.M. WARBURG, PINCUS & CO., LLC



                              By: /s/Stephen Distler
                                   Stephen Distler, Member








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