Form of Registration Rights Agreement

         THIS  REGISTRATION  RIGHTS  AGREEMENT  (this  "Agreement")  is  made by
Celsion Corporation,  a Maryland corporation (the "Company"), for the benefit of
the undersigned investor (the "Investor";  collectively, the "Investors").  This
Agreement  shall become  effective upon acceptance and closing in respect of the
related  subscription  for the Units  being  offered by the  Company,  each Unit
consisting of 40,000 shares of Common Stock of the Company,  par value $0.01 per
share (the "Common Stock"), and a Warrant (the "Warrant") to purchase (i) 20,000
shares of the Common  Stock at an  Exercise  Price of $0.50 per share,  and (ii)
20,000 shares of the Common Stock at an Exercise Price of $1.00 per share.

                                 R E C I T A L S

         A. The Investor  desires to purchase from the Company,  and the Company
desires to issue and sell to the  Investor,  up to an aggregate of $1,000,000 of
Units,  each Unit  consisting  of 40,000 shares of Common Stock and a Warrant to
purchase  40,000  shares  of the  Common  Stock,  as  described  in the  Private
Placement  Memorandum  dated  September 10, 1998, as amended  November 12, 1998,
together with the Exhibits attached thereto (the "Offering Memorandum").

         B. As partial  inducement for the Investor to purchase the  Securities,
the Company  hereby  undertakes  to use its best  effort to  register  under the
Securities Act of 1933, as amended,  and the rules and  regulations  promulgated
thereunder (the "Securities  Act"), the Securities upon the terms and subject to
the conditions set forth herein.

         The Company and the Investor hereby agree as follows:

         1.       Definitions.  For the purposes of this Agreement:

                  (a) The  terms  "register,"  "registered"  and  "registration"
         refer to a registration effected by preparing and filing a registration
         statement or  statements or similar  documents in  compliance  with the
         Securities Act and pursuant to Rule 415 under the Securities Act or any
         successor rule providing for offering  securities on a continuous basis
         ("Rule 415"),  and the declaration or ordering of effectiveness of such
         registration  statement  or document  by the  Securities  and  Exchange
         Commission (the "SEC").

                  (b) The term  "Registerable  Securities"  means (i) the Common
         Stock, including the Common Stock issued upon exercise of the Warrants,
         and (ii) any common stock of the Company  issued as (or  issuable  upon
         the conversion or exercise of any convertible security,  warrant, right
         or other security which is issued as) a dividend or other  distribution
         with  respect to, or in  exchange  for or in  replacement  of any Unit,


                                       -1-



         Common  Stock  or  Warrant,   excluding  in  all  cases,  however,  any
         Registerable   Securities  sold  by  a  holder  of  such   Registerable
         Securities in a transaction in which its registration rights under this
         Agreement are not assigned.

                  (c)  The  Investor  and  assignees  with  registration  rights
         assigned  to  them  pursuant  to  Section  8 of this  Agreement  may be
         referred to herein collectively as "Holders" of Registerable Securities
         and each may be  referred  to  herein  as a  "Holder"  of  Registerable
         Securities.

         2.  Piggyback  Registration.  (a) On an  unlimited  number of occasions
until  December 31,  2000,  and subject to the terms of this  Agreement,  in the
event the Company  decides to register any of its Common  Stock  (either for its
own  account  or the  account of a security  holder or  holders)  on an SEC form
(other  than  S-4 or S-8 or  successor  forms)  that  would  be  suitable  for a
registration involving Registerable  Securities,  the Company will: (x) promptly
give each Holder of Registerable  Securities written notice thereof (which shall
include a list of  jurisdictions  in which the Company  intends to qualify  such
securities under the applicable Blue Sky or other state securities laws) and (y)
include in such  registration (and in any related  qualification  under the Blue
Sky laws or other  state  securities  laws),  and in any  underwriting  involved
therein, all the Registerable  Securities within twenty (20) days after delivery
of such  written  notice from the Company.  Nothing  contained in this Section 2
shall limit the ability of the Company to withdraw a  Registration  Statement it
has filed either before or after effectiveness.

         (b) If the  registration  of which the Company gives notice pursuant to
Section 2(a) is for a registered public offering involving an underwriting,  the
Company  shall so advise the Holders of  Registerable  Securities as part of the
written notice given pursuant to Section 2(a) hereof.  In such event,  the right
of any Holder of Registerable  Securities to  registration  shall be conditioned
upon  such  underwriting  and  the  inclusion  of  such  Holders'   Registerable
Securities in such  underwriting  to the extent  provided in this Section 2. All
Holders of  Registerable  Securities  proposing to distribute  their  securities
through  such an  underwriting  shall  (together  with the Company and the other
holders  distributing their securities through such underwriting)  enter into an
underwriting agreement with the Underwriter's  representative for such offering;
provided that such holders shall have no right to  participate  in the selection
of the underwriters for an offering pursuant to this Section 2.

         (c) In the event the Underwriters'  representative  advises the Holders
of Registerable  Securities  seeking  registration  of  Registerable  Securities
pursuant to this Section 2 in writing that market  factors  (including,  without
limitation,  the  aggregate  number of shares of Common  Stock  requested  to be
registered,  the general condition of the market,  and the status of the persons
proposing to sell securities pursuant to this registration) require a limitation
of the number of shares to be underwritten, the Underwriter's representative may
exclude  some  or  all  Registerable   Securities  from  such  registration  and
underwriting.  In such event, the Underwriters'  representative  shall so advise
all Holders of  Registerable  Securities of the number of shares of Registerable
Securities that may be included in such  registration and underwriting (if any),
and the number of shares of Registerable Securities that may be included in such


                                       -2-



registration  and  underwriting  (if any) shall be  allocated  among all holders
seeking registration in proportion,  as nearly as practicable,  to the number of
shares proposed to be included in the registration by the Holder.  The number of
shares of Registerable  Securities to be included in such underwriting shall not
be reduced  unless all other  securities  (other than those sold by the Company)
are similarly limited from the underwriting. No Registerable Securities or other
securities  excluded from the  underwriting by reason of this Section 2 shall be
included in such Registration Statement.

         3.  Obligations  of the Company.  When required under this Agreement to
effect the  registration of the Registerable  Securities,  the Company shall, as
expeditiously as reasonably possible, use good faith efforts to:

                  (a) Prepare and file with the SEC a registration  statement or
         statements or similar  documents (the  "Registration  Statement")  with
         respect to all  Registerable  Securities.  The  Company  shall use good
         faith efforts to keep such Registration Statement effective pursuant to
         Rule 415 at all times until the earlier of (i) December  31,  2001,  or
         (ii) the date on which all Investors  can sell any of the  Registerable
         Securities   pursuant  to  Rule  144  of  the  Securities  Act  without
         restriction under Rule 144(e) thereof.

                  (b) Prepare and file with the SEC such  amendments  (including
         post-effective   amendments)  and   supplements  to  the   Registration
         Statement and the prospectus used in connection  with the  Registration
         Statement  as may be  necessary  to  keep  the  Registration  Statement
         effective at all times until the earlier of (i)  December 31, 2001,  or
         (ii) the date on which all Investors can sell their  respective  shares
         of Registerable  Securities  pursuant to Rule 144 of the Securities Act
         without  restriction under Rule 144(e) thereof,  and to comply with the
         provisions of the Securities Act with respect to the disposition of all
         securities covered by the Registration Statement.

                  (c) Furnish promptly to the Holders of Registerable Securities
         such  numbers  of  copies  of a  prospectus,  including  a  preliminary
         prospectus,  and all amendments and supplements  thereto, in conformity
         with the  requirements  of the Securities Act, and such other documents
         as the Holders of  Registerable  Securities may  reasonably  request in
         order to facilitate the disposition of Registerable Securities.

                  (d)  Register  and  qualify  the  securities  covered  by  the
         Registration  Statement under such other securities or Blue Sky laws of
         such  jurisdictions  as shall be reasonably  requested by the Investors
         and prepare and file in those jurisdictions such amendments  (including
         post-effective  amendments)  and  supplements  and to take  such  other
         actions  as  may  be  necessary  to  maintain  such   registration  and
         qualification  in effect at all times until the earlier of (i) December
         31,  2001,  or (ii) the  date on which  all  Investors  can sell  their


                                       -3-



         respective  shares of Registerable  Securities  pursuant to Rule 144 of
         the Securities Act without  restriction under Rule 144(e) thereof,  and
         to take  all  other  actions  necessary  or  advisable  to  enable  the
         disposition of such securities in such jurisdictions, provided that the
         Company shall not be required in connection therewith or as a condition
         thereto  to  qualify  to do  business  or to file a general  consent to
         service of process in any such  states or  jurisdictions  or to provide
         any  undertaking or make any change in its charter or by-laws which the
         Board of Directors  determines  to be contrary to the best  interest of
         the Company and its stockholders.

                  (e) In the event the  holders of a majority in interest of the
         Registerable  Securities  select  underwriters for the offering,  enter
         into and perform its obligations  under an underwriting  agreement,  in
         usual and customary  form,  including,  without  limitation,  customary
         indemnification  and  contribution   obligations,   with  the  managing
         underwriter of such offering.  The Investors  shall also enter into and
         perform their customary obligations under any such agreement including,
         without   limitation,   customary   indemnification   and  contribution
         obligations.

                  (f) Notify the Holders of Registerable Securities, at any time
         when a prospectus  relating to Registerable  Securities  covered by the
         Registration Statement is required to be delivered under the Securities
         Act, of the happening of any event as a result of which the  prospectus
         included in the Registration  Statement, as then in effect, includes an
         untrue  statement of a material  fact or omits to state a material fact
         required  to be stated  therein  or  necessary  to make the  statements
         therein not misleading in light of the circumstances then existing. The
         Company shall promptly amend or supplement the  Registration  Statement
         to correct any such untrue statement or omission.

                  (g)  Notify  the  Holders of  Registerable  Securities  of the
         issuance by the SEC of any stop order  suspending the  effectiveness of
         the Registration Statement or the initiation of any proceedings for the
         purposes.  The Company will make every reasonable effort to prevent the
         issuance of any stop order and, if any stop order is issued,  to obtain
         the lifting thereof at the earliest possible time.

                  (h)  Permit a single  firm of  counsel  designated  as selling
         stockholders'  counsel by the  holders of a majority in interest of the
         Registerable Securities commencing at a reasonable period of time prior
         to  their  filing,  to  review  the  Registration   Statement  and  all
         amendments and supplements thereto and shall not file any document in a
         form to which such counsel reasonably objects.

                  (i) Make generally  available to its security  holders as soon
         as practicable,  but not later than ninety (90) days after the close of
         the period covered  thereby,  an earnings  statement (in form complying
         with the  provisions of Rule 158 under the  Securities  Act) covering a


                                       -4-



         12-month period beginning not later than the first day of the Company's
         fiscal quarter next  following the effective  date of the  Registration
         Statement.

                  (j) At the request of the Holders of Registerable  Securities,
         furnish to the  underwriters on the date that  Registerable  Securities
         are  delivered  to the  underwriters  for  sale  in  connection  with a
         registration  pursuant to this  Agreement  (i) an  opinion,  dated 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,  addressed  to the
         underwriters,  and (ii) a letter dated such date,  from the independent
         certified public  accountants of the Company,  in form and substance as
         is customarily  given by independent  certified  public  accountants to
         underwriters  in an  underwritten  public  offering,  addressed  to the
         underwriters.

                  (k)  Make   available   for   inspection  by  the  Holders  of
         Registerable Securities, any underwriters participating in the offering
         pursuant to the  registration  and the  counsel,  accountants  or other
         agents  retained by the  Investors,  all pertinent  financial and other
         records,  corporate documents and properties of the Company,  and cause
         the  Company's   officers,   directors  and  employees  to  supply  all
         information  reasonably  requested by the Investors in connection  with
         the registration.

                  (l)  If  the  Common  Stock  is  then  listed  on  a  national
         securities exchange,  cause the Registerable Securities to be listed on
         such  exchange.  If the Common  Stock is not then  listed on a national
         securities exchange, use good faith efforts to facilitate the reporting
         of the Common Stock on NASDAQ.

                  (m)  Provide a transfer  agent and  registrar,  which may be a
         single  entity,  for the  Registerable  Securities  not later  than the
         effective date of the Registration Statement.

                  (n)  Take all  actions  necessary  to  facilitate  the  timely
         preparation and delivery of  certificates  (not bearing any restrictive
         legend) representing the Registerable Securities to be sold pursuant to
         the  Registration  Statement and to enable such  certificates  to be in
         such  denominations and registered in such names as the Holders of such
         Registerable Securities or any underwriters may reasonably request.

                  (o) Take all other  reasonable  actions  necessary to expedite
         and  facilitate  disposition  by  the  Investors  of  the  Registerable
         Securities pursuant to the Registration Statement.

         4.  Furnish  Information.  It shall  be a  condition  precedent  to the
obligations  of the Company to take any action  pursuant to this  Agreement with
respect to each Investor  that such  Investor  shall furnish to the Company such


                                       -5-



information  regarding itself,  the Registerable  Securities held by it, and the
intended  method  of  disposition  of such  securities  as shall  be  reasonably
required to effect the  registration  of the  Registerable  Securities and shall
execute such documents in connection  with such  registration as the Company may
reasonably request.

         5. Expenses of Registration.  All expenses  incurred in connection with
registration,  filings or  qualifications  pursuant  to Sections 2 and 3 hereof,
including,   without   limitation,   all  registration,   listing,   filing  and
qualification  fees, printers and accounting fees, the fees and disbursements of
counsel for the Company and the reasonable fees and disbursements of one counsel
for the Investors shall be borne by the Company.

         6.  Indemnification.  In the  event  any  Registerable  Securities  are
included in a Registration Statement:

                  (a) To the extent permitted by law, the Company will indemnify
         and hold harmless each Investor, the directors,  employees,  agents and
         the  officers of the  Company,  each person who signs the  Registration
         Statement,  and each person,  if any,  who  controls  any of them,  any
         underwriter  (as  defined in the  Securities  Act) for such  Holders of
         Registerable  Securities and each person, if any, who controls any such
         underwriter  within the meaning of the Securities Act or the Securities
         Exchange Act of 1934, as amended (the "1934 Act"),  against any losses,
         claims,  damages,  expenses or liabilities  (or actions or proceedings,
         whether commenced or threatened,  in respect thereof) arising out of or
         based upon any of the  following  statements,  omissions or  violations
         (collectively,  a  "Violation"):  (i) any untrue  statement  or alleged
         untrue  statement  of a material  fact  contained  in the  Registration
         Statement,  including any  preliminary  prospectus or final  prospectus
         contained  therein or any amendments or supplements  thereto,  (ii) the
         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 in which they were made, not misleading,  or
         (iii)  any  violation  or  alleged  violation  by  the  Company  of the
         Securities Act, the 1934 Act, any state  securities laws or any rule or
         regulation  promulgated  under the Securities  Act, the 1934 Act or any
         state securities laws; and the Company will reimburse the Investors and
         each such underwriter or controlling person,  promptly as such expenses
         are incurred,  for any legal or other expenses  reasonably  incurred by
         them in  connection  with  investigating  or  defending  any such loss,
         claim, damage, liability, action or proceeding; provided, however, that
         the indemnity  agreement contained in this Section 6(a) shall not apply
         to  amounts  paid  in  settlement  of any  such  loss,  claim,  damage,
         liability or action if such settlement is effected  without the consent
         of the Company,  which consent shall not be unreasonably  withheld, nor
         shall the Company be liable in any such case for any such loss,  claim,
         damage,  liability, or action to the extent that it arises out of or is
         based upon a Violation  which occurs in reliance upon and in conformity
         with written information furnished expressly for use in connection with
         such   registration  by  the  Investors  or  any  such  underwriter  or
         controlling  person, as the case may be. Such indemnity shall remain in


                                       -6-



         full force and effect  regardless  of any  investigation  made by or on
         behalf of the Investors or any such  underwriter or controlling  person
         and shall  survive the transfer of the  Registerable  Securities by the
         Holders of Registerable Securities.

                  (b)  To  the  extent   permitted   by  law,   each  Holder  of
         Registerable Securities,  severally and not jointly, will indemnify and
         hold harmless the Company, each of its directors,  each of its officers
         who have signed the Registration  Statement,  each person,  if any, who
         controls the Company  within the meaning of the  Securities  Act or the
         1934 Act, any underwriter and any other stockholder  selling securities
         pursuant  to the  Registration  Statement  of any of its  directors  or
         officers or any person who controls such holder or underwriter, against
         any losses,  claims, damages of liabilities (joint or several) to which
         any of them may become subject,  under the Securities Act, the 1934 Act
         of other federal or state law, insofar as such losses,  claims, damages
         or  liabilities  (or  actions in respect  thereof)  arise out of or are
         based upon any  Violation,  in each case to the extent (and only to the
         extent) that such  Violation  occurs in reliance upon and in conformity
         with  written  information  furnished  by such  Holder of  Registerable
         Securities expressly for use in connection with such registration;  and
         such Holder of  Registerable  Securities  will  reimburse  any legal or
         other expenses  reasonably  incurred by any of them in connection  with
         investigating or defending any such loss, claim,  damage,  liability or
         action;  provided,  however,  that the indemnity agreement contained in
         this Section 6(b) shall not apply to amounts paid in  settlement of any
         such loss,  claim,  damage,  liability or action if such  settlement is
         effected without the consent of such Holder of Registerable Securities,
         which  consent  shall  not  be  unreasonably  withheld;  and  provided,
         further,  that the Investor  shall be liable under this  paragraph  for
         only that amount of losses, claims, damages and liabilities as does not
         exceed  the  proceeds  to such  Investor  as a  result  of the  sale of
         Registerable Securities pursuant to such registration.

                  (c) Promptly after receipt by an indemnified  party under this
         Section 6 of notice of the  commencement  of any action  (including any
         governmental  action),  such  indemnified  party  will,  if a claim  in
         respect thereof is to be made against any indemnifying party under this
         Section 6, deliver to the  indemnifying  party a written  notice of the
         commencement thereof and the indemnifying party shall have the right to
         participate in, and, to the extent the  indemnifying  party so desires,
         jointly with any other indemnifying party similarly noticed,  to assume
         control of the defense  thereof with counsel  mutually  satisfactory to
         the parties;  provided,  however,  than an indemnified party shall have
         the right to retain its own  counsel,  with the fees and expenses to be
         paid by the  indemnifying  party,  if,  in the  reasonable  opinion  of
         counsel for the indemnifying party,  representation of such indemnified
         party by the  counsel  retained  by the  indemnifying  party,  would be
         inappropriate  due to actual or potential  differing  interests between
         such indemnified  party and any other party represented by such counsel
         in such  proceeding.  The  failure  to  deliver  written  notice to the
         indemnifying  party within a reasonable time of the commencement of any


                                       -7-



         such action shall relieve such  indemnifying  party of any liability to
         the  indemnified  party  under  this  Section  6  only  to  the  extent
         prejudicial  to its ability to defend such action,  but the omission so
         to deliver written notice to the indemnifying party will not relieve it
         of any liability that it may have to any  indemnified  party  otherwise
         than under this Section 6. The indemnification required by this Section
         6 shall be made by periodic  payments of the amount  thereof during the
         course of the investigation or defense, promptly as such expense, loss,
         damage or liability is incurred.

                  (d) To the extent any indemnification by an indemnifying party
         is prohibited or limited by law, the indemnifying  party agrees to make
         the maximum contribution with respect to any amounts for which it would
         otherwise  be liable  under this  Section 6 to the extent  permitted by
         law,   provided   that  (i)  no   contribution   shall  be  made  under
         circumstances   where  the  maker   would  not  have  been  liable  for
         indemnification  under the fault standards set forth in this Section 6,
         (ii)  no  seller  of  Registerable   Securities  guilty  of  fraudulent
         misrepresentation   (within  the  meaning  of  Section   11(f)  of  the
         Securities  Act) shall be entitled to  contribution  from any seller of
         Registerable   Securities  who  was  not  guilty  of  such   fraudulent
         misrepresentation, and (iii) contribution by any seller of Registerable
         Securities  shall be limited  in amount to the net  amount of  proceeds
         received by such seller from the sale of such Registerable Securities.

         7. Reports Under Securities Exchange Act of 1934. With a view to making
available to the Holders of Registerable Securities the benefits of SEC Rule 144
promulgated under the Securities Act and any other rule or regulation of the SEC
that may at any time permit the  Investors to sell  securities of the Company to
the public without registration, the Company agrees to:

                  (a) make and keep public information available, as those terms
         are understood and defined in SEC Rule 144, at all times;

                  (b) file with the SEC in a timely manner all reports and other
         documents required of the Company under the Securities Act and the 1934
         Act; and

                  (c) furnish to each Holder of Registerable Securities, so long
         as  such  Holder  of  Registerable  Securities  owns  any  Registerable
         Securities,  forthwith  upon  request  (i) a written  statement  by the
         Company that it has complied  with the  reporting  requirements  of SEC
         Rule 144, the  Securities Act and the 1934 Act, (ii) a copy of the most
         recent annual or quarterly report of the Company and such other reports
         and documents so filed by the Company, and (iii) such other information
         as may be reasonably requested in availing the Investors of any rule or
         regulation of the SEC which permits the selling of any such  securities
         without registration.

         8.  Assignment of Registration  Rights.  The rights to have the Company
register  Registerable  Securities pursuant to this Agreement may be assigned by


                                       -8-



the  Holders  of  Registerable  Securities,  subject  to  the  Holders  of  such
Registerable  Securities and such assignment  being in compliance with the terms
of this Agreement and any agreements  incorporated  herein,  and subject to such
assignment  being in conformity with federal and state securities law, rules and
regulations,  unless exempt  therefrom,  to  transferees  or assignees,  of such
securities,  provided,  however,  that  such  transferee  or  assignee  within a
reasonable time after such transfer, furnishes the Company written notice of the
name and address of such  transferee or assignee and the securities with respect
to which such  registration  rights are being assigned;  and provided,  further,
that such  assignment  shall be effective  only if  immediately  following  such
transfer  the  further  disposition  of such  securities  by the  transferee  or
assignee is restricted  under the Securities Act. The term "Investor" as used in
this Agreement shall include permitted assignees.

         9.       Miscellaneous.
                  --------------

         (a) Notices  required or  permitted to be given  hereunder  shall be in
writing and shall be deemed to be sufficiently  given when personally  delivered
or sent by  registered  mail,  return-receipt  request,  addressed (i) if to the
Company,  at Celsion  Corporation,  10220-I  Old  Columbia  Road,  Columbia,  MD
21046-1705,  Attention:  Augustine Cheung, PhD., Chairman of the Board and Chief
Executive Office, and (ii) if to an Investor, at the address set forth under his
name in the associated  Subscription Agreement, or at such other address as each
such party shall furnish by notice given in accordance with this Section 9(a).

         (b)  Failure of any party to  exercise  any right or remedy  under this
Agreement or otherwise,  or delay by a party in exercising such right to remedy,
will not operate as a waiver  thereof.  No waiver will be  effective  unless and
until it is in writing and signed by the party giving the waiver.

         (c) This  Agreement  shall be enforced,  governed and  construed in all
respects in accordance with the laws of the State of Maryland,  as such laws are
applied by Maryland  courts to  agreements  entered  into and to be performed in
Maryland by and between  residents of Maryland.  In the event that any provision
of this Agreement is invalid or  unenforceable  under any applicable  statute or
rule of law, then such provision shall be deemed  inoperative to the extent that
it may  conflict  therewith  and shall be deemed  modified to conform  with such
statute  or rule of law.  Any  provision  hereof  which  may  prove  invalid  or
unenforceable  under any law shall not affect the validity or  enforceability of
any other provision hereof.

         (d) The Company will not, after the date of this Agreement,  enter into
any agreement  with respect to its  securities  which is  inconsistent  with the
rights  granted to the Holders of  Registerable  Securities in this Agreement or
otherwise conflicts with the provisions hereof.

         (e) The provisions of this Agreement,  including the provisions of this
sentence, may not be amended, modified or supplemented,  and waivers or consents
to departures from the provisions hereof may not be given unless the Company has
obtained the written  consent of holders of at least a majority of shares of the
Registerable  Securities.  Notwithstanding the foregoing, a waiver or consent to
departure  from the  provisions  hereof with respect to a matter  which  relates


                                       -9-



exclusively to the rights of Holders of Registerable Securities whose securities
are being sold pursuant to a Registration  Statement and which does not directly
or indirectly affect the rights of other Holders of Registerable  Securities may
be  given  by the  holders  of a  majority  of the  shares  of the  Registerable
Securities  being sold by such  holders,  provided  that the  provisions of this
sentence may not be amended, modified, or supplemented except in accordance with
the provisions of the immediately preceding sentence.

         (f)  Subject to Section 8 hereof,  this  Agreement  shall  inure to the
benefit of and be binding upon the successors  and permitted  assigns of each of
the parties,  including  without  limitation and without the need for an express
assignment, subsequent holders of Registerable Securities.

         (g) This Agreement may be executed in any number of counterparts and by
the parties hereto in separate counterparts and by facsimile signatures, each of
which when so executed  shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

         (h) This Agreement is intended by the parties as a final  expression of
their  agreement  and intended to be a complete and  exclusive  statement of the
agreement  and  understanding  of the  parties  hereto in respect of the subject
matter  contained  herein.  There are no restrictions,  promises,  warranties or
undertakings,  other than those set forth or referred to herein with  respect to
the registration  rights granted by the Company with respect to the Registerable
Securities.  This Agreement  supersedes all prior  agreements and  understanding
between the parties with respect to such subject matters.

Dated: December 1, 1998


                                  CELSION CORPORATION


                                  By:_________________________________
                                     Name: Augustine Y. Cheung
                                     Title:   Chairman of the Board



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                                  Name:


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