EMPLOYMENT AGREEMENT
                              --------------------


         THIS  AGREEMENT  is made and entered into as of the 5th day of October,
1998  between  ENERGY  RESEARCH   CORPORATION,   a  New  York  corporation  (the
"Company"),  and JOSEPH G. MAHLER,  an individual with a current mailing address
at 2 Queens Peak Road, Canton,  Connecticut 06019, (the "the Employee").  Unless
the context otherwise  requires,  the term "Company",  shall include the Company
and each of its subsidiaries.

                                W I T N E S E T H

         WHEREAS,  the  Company  desires  to employ  the  Employee  as its Chief
Financial  Officer  and  Corporate  Secretary  and the  Employee  desires  to be
employed in such  capacities in  accordance  with the terms and  conditions  set
forth herein;

         NOW,  THEREFORE,   in  consideration  of  the  covenants,   conditions,
undertakings  and premises  contained  herein,  the sufficiency  which is hereby
acknowledged, the Company and the Employee agree follows:

                                    ARTICLE 1
                                    ---------

                              EMPLOYMENT AND DUTIES
                              ---------------------

1.1      Employment; Duties
         ------------------

         Subject  to the  terms and  conditions  set  forth  herein,  commencing
October  5, 1998 (the  "Commencement  Date")  the  Company  agrees to employ the
Employee  and the  Employee  agrees to be employed as Chief  Financial  Officer,
Treasurer and Corporate Secretary of the Company. In such position, the Employee
shall perform such duties as are or may be assigned to the Employee by the Chief
Executive  Officer  and  Board  of  Directors  of the  Company  (the  "Board  of
Directors")  from time to time.  In  connection  therewith,  the Employee  shall
report to and be subject to the supervision of the Chief Executive  Officer.  In
the course of the performance of his duties hereunder,  Employee shall comply in
all  material  respects  with the  Company's  regular  employment  policies  and
procedures as they may be modified from time to time.

1.2.     Full Time
         ---------

         The Employee shall devote his full working time,  attention,  energies,
skills and best efforts  exclusively to the performance of his duties hereunder.
The  Employee  shall not during the term of this  Agreement  engage in any other
business  activity  whether or not such activity is pursued for gain,  profit or
other pecuniary  advantage,  except that the Employee,  on his own time, (a) may
manage his own investments, and those of his immediate family, and (b) may serve
as a member of the  board of  directors  of other  corporations  subject  to the
restrictions set forth in Section 5.1, so long as such activity (as described in
either  clause (a) or (b) above),  does not, in the  reasonable  judgment of the
Company's  Board of Directors,  adversely  affect the  performance of his duties
hereunder.

                                       1


                                    ARTICLE 2
                                    ---------

 2.1     Term
         ----

         The term of the Employee's  employment by the Company  hereunder  shall
commence on the  Commencement  Date and,  except as  otherwise  provided in this
Agreement with respect to earlier  termination,  shall continue until terminated
by either party pursuant to Article 7.

                                    ARTICLE 3
                                    ---------

                                  COMPENSATION
                                  ------------

3.1      Base Salary
         -----------

         For all service to be rendered by the  Employee  under this  Agreement,
and such other duties as the Chief Executive  Officer and the Board of Directors
may assign to him in accordance  with Section 1.1 hereof,  the Company agrees to
pay the Employee a base salary of $185,000 per annum. The Employee's base salary
shall be  subject  to  periodic  review and  adjustment  by the Chief  Executive
Officer and the Board of Directors in their sole  discretion,  provided that the
base salary may not be reduced below $185,000 per year. The base salary shall be
payable  at such times as is  customary  for  employees  of the  Company  and in
accordance with the normal payroll practices of the Company.

3.2.     Incentive Compensation
         ----------------------

         Commencing with the Company's  fiscal year beginning  November 1, 1998,
the Employee shall be a participant in the Company's incentive compensation plan
generally  made  available  to  executive  officers  as it may be in effect  and
revised  from time to time.  Employee's  target  bonus  under  such plan will be
thirty  percent  (30%) of his base  salary  with a maximum  bonus of 150% of the
target bonus. The Employee  understands and agrees that the implementation of an
incentive  compensation plan for the Employee and other executive  officers will
be subject to the review and approval of the Compensation Committee of the Board
of Directors.

3.3.     Expenses
         --------

         (a) General. In addition to base salary and incentive compensation, the
Company shall  reimburse the Employee for all reasonable and necessary  business
expenses actually  incurred by him in the performance of his duties,  including,
without  limitation,   expenses  for  travel,  meals,  entertainment  and  other
miscellaneous  business expenses,  in accordance with the Company's policies and
practices as may be in effect from time to time.

         (b) Moving Expenses. The Employee agrees to relocate to the vicinity of
the Company's executive offices in Danbury, Connecticut (the "Company Location")
as soon as practicable  following his commencement of employment  hereunder.  In
connection with that relocation,  the Company agrees to pay for or reimburse the
Employee for all reasonable out-of-pocket expenses incurred by him in connection
with his  relocation  from his current  residence in Canton,  Connecticut to the

                                       2


Company  Location  during a two year  period  following  the  execution  of this
Agreement, including, without limitation, (i) reasonable moving company expenses
and storage fees, (ii) reasonable fees and expenses  incurred in connection with
the sale of his current residence,  including reasonable  brokerage  commissions
(iii) reasonable fees and expenses incurred in connection with his purchase of a
home in the  vicinity of the  Company  Location,  not  including  any  brokerage
commissions  (iv) reasonable  expenses  associated with commuting to work (for a
maximum period of six months  following the execution of this  Agreement) and to
search for a new residence.

         (c)  Documentation.  Reimbursement  or  payment  by the  Company of the
Employee's  expenses  as set forth in this  Section  3.3 shall be subject to the
Employee's submission of written,  itemized expense accounts and such additional
substantiation   and  justification  as  the  Company  may  reasonably   request
consistent with the Company's  reimbursement  policies generally  applicable for
its salaried employees.

                                    ARTICLE 4
                                    ---------

                                COMPANY BENEFITS
                                ----------------

4.1      Vacation
         --------

         The Employee  shall be entitled to receive four weeks of paid  vacation
per calendar year (pro rated for any partial year), which shall be taken at such
time or times as will not  unreasonably  hinder or interfere  with the Company's
business or operations.


4.2.     Severance Benefit
         -----------------

         If during the Employee's  employment  pursuant to this  Agreement,  the
Employee  ceases to be  employed  by the  Company  as a result of the  Company's
termination  of the Employee  without cause pursuant to Section 7.4 (which shall
not  include  any  termination  that  is  otherwise  within  Article  6) or  the
Employee's  termination of his  employment  for good reason  pursuant to Section
7.1,  the Company  shall pay the Employee as a severance  benefit,  (a) his then
base salary plus (b) an amount equal to the  Employee's  bonus from the Company,
if any, for the  immediately  preceding  year.  This severance  benefit shall be
payable by the  Company  through (i) the  continuation  of the  Employee's  base
salary  for a period of one year and (ii) the  payment  of the  balance  in four
equal quarterly installments, with the first such payment due three months after
the  termination and the final payment due one year after the  termination.  The
severance  obligation  set forth in this Section 4.2 shall be in lieu of and not
in addition to any other severance benefits made available to other employees of
the Company.

4.3.     Stock Options
         -------------

         (a)  Effective on the  execution of this  Agreement,  the Company shall
issue to the  Employee  an option to  purchase  50,000  shares of the  Company's
Common Stock with an exercise  price equal to the closing price of the Company's
Common Stock on the American Stock Exchange on the date hereof,  pursuant to the
Company's   standard  form  of  Option  Agreement,   subject  to  the  following

                                       3


provisions.  The  option  shall  vest  over a four  year  period at 25% per year
(12,500 shares) on each  anniversary  date of the  Commencement  Date;  provided
however, if the Employee's  employment  hereunder is terminated without cause by
the Company or for good reason by the  Employee  prior to the first  anniversary
date of the  Commencement  Date, the options to purchase the first 12,500 shares
of the Company's  Common Stock will  automatically  vest.  The options will also
fully vest upon a change of control of the Company.

         (b)  The  Employee  understands  that  the  Company  is  considering  a
so-called spin-off of its Battery business. In the event of such spin-off, if it
occurs  within  the  initial  one year term of this  Agreement,  if at all,  the
Company will cause the spun-off company (the "Battery  Company") to either grant
the Employee an option to purchase  50,000 shares of its Common Stock or provide
the Employee with the right to purchase 50,000 shares of restricted  stock.  The
exercise  or purchase  price of such stock will be the fair market  value of the
stock,  as  determined  by the Board of  Directors  on the date of  grant.  Such
options  or  stock  will  vest at 25% per year  from the date of their  grant or
purchase. The Employee understands and agrees that following the spin-off of the
Battery  Company,  if it occurs,  his  employment  may  include  acting as Chief
Financial Officer of the Battery Company during an indefinite period.

4.4.     Other Benefit Plans
         -------------------

         The Employee  shall further be entitled to  participate  in and receive
benefits under any retirement, life insurance,  accident, disability, health and
dental insurance,  profit sharing,  or similar plans generally made available to
its employees.

4.5.     Indemnification
         ---------------

         The Company agrees to defend and shall  indemnify and hold the Employee
harmless  to the fullest  extent  permitted  by law from any and all  liability,
costs,  and expenses which may be assessed against the Employee by reason of the
performance  of  his  responsibilities  and  duties  under  the  terms  of  this
Agreement,  provided such liability  does not result from willful  misconduct or
gross negligence of the Employee.



                                    ARTICLE 5
                                    ---------

                                  RESTRICTIONS
                                  ------------

5.1      Non-Competition
         ---------------

         (a) So long as the Employee is employed by the Company and for a period
of two years thereafter (the "Noncompetition  Period"),  the Employee shall not,
directly  or  indirectly,  whether  as owner,  partner,  shareholder,  director,
consultant,  agent,  employee,  guarantor,  surety or otherwise,  or through any
person,  consult with or in any way aid or assist any  competitor of the Company
or engage or attempt to engage in any  employment,  consulting or other activity
which  directly or  indirectly  competes  with the Business of the Company.  For
purposes of this Agreement,  the term "employment" shall include the performance

                                       4


of  services  by  Employee  as  an  employee,   consultant,  agent,  independent
contractor  or  otherwise  and the term  "Business"  shall  mean  the  research,
development,  manufacture,  sale or  distribution  of fuel cells,  batteries  or
related products and any other business engaged in, planned or under development
by the  Company  with  respect to which the  Employee  has had access to Company
confidential   information  during  the  Noncompetition   Period.  The  Employee
acknowledges that his participation in the conduct of any such Business alone or
with any person other than the Company will  materially  impair the Business and
prospects of the Company.

         (b) In addition  to and  without  limiting  the  foregoing,  during the
Noncompetition Period, Employee shall not knowingly do, attempt to or assist any
other person in doing or  attempting  to do any of the  following:  (i) hire any
director,  officer,  employee, or agent of the Company (a "Company Employee") or
encourage any such person to terminate such  relationship  with the Company,  as
the case may be (for purposes  hereof,  the Employee  shall be deemed to have so
encouraged a Company Employee to terminate such relationship with the Company if
the Employee  hires or  otherwise  assists any person in hiring any such Company
Employee  within six months  after the Company  Employee  terminates  his or her
relationship with the Company), (ii) encourage any customer, client, supplier or
other  business   relationship  of  the  Company  to  terminate  or  alter  such
relationship,  whether  contractual  or otherwise,  to the  disadvantage  of the
Company;  (iii) encourage any prospective customer or supplier not to enter into
a business  relationship with the Company;  (iv) impair or attempt to impair any
relationship, contractual or otherwise, written or oral, between the Company and
any customer,  supplier or other business  relationship  of the Company;  or (v)
sell or  offer  to sell or  assist  in or in  connection  with  the  sale to any
customer or prospective customer of the Company any products of the type sold or
rendered by the Company.

         (c)  Nothing in this  Agreement  shall  preclude  Employee  from making
passive investments of not more than 2% of a class of securities of any business
enterprise registered under the Securities Exchange Act of 1934.

5.2.     Intellectual Property
         ---------------------

     Upon  execution of this  Agreement,  the Employee  shall execute the Energy
Research   Corporation    Agreement   for   Assignment,    Confidentiality   and
Nonsolicitation,  which  agreement is hereby  incorporated  herein by reference.

5.3. Injunctive Relief
     -----------------

         The  Employee  acknowledges  that the  restrictions  contained  in this
Article  are  reasonable  in view of the  nature  of the  business  in which the
Company is engaged and his position with the Company which will provide him with
extensive knowledge of the business.

         The  Company  and the  Employee  mutually  agree  that  the  Employee's
obligations under this Article are of a special and unique character which gives
them a peculiar  value,  and the Company  cannot be  reasonably or adequately be
compensated  in damages in an action at law in the event the  Employee  breaches
such obligations.  The Employee therefore  expressly agrees that, in addition to
any other rights or remedies which the Company may possess, the Company shall be

                                       5


entitled to injunctive  and other  equitable  relief to prevent a breach of this
Article by the Employee,  including a temporary  restraining  order or temporary
injunction from any court of competent  jurisdiction  restraining any threatened
or actual  violation,  and each party hereby consents to the entry of such order
and  injunctive  relief  and  waives  the  making of a bond as a  condition  for
obtaining  such relief.  Such rights shall be cumulative  and in addition to any
other legal or equitable rights and remedies the Company may have.

5.4.     Survival Enforceability
         -----------------------

         It is expressly  agreed by the parties  hereto that the  provisions  of
this Article shall survive the termination of this Agreement.

         If any one or more of the  provisions  contained in this Article  shall
for any reason in any  jurisdiction  be held to be  excessively  broad as to the
time, duration,  geographical scope,  activity or subject, it shall be construed
with  respect to such  jurisdiction,  by limiting  or  reducing  it, so as to be
enforceable  to  the  extent   compatible   with  the  applicable  law  of  such
jurisdiction as it shall then appear.

                                    ARTICLE 6
                                    ---------

                                DEATH; DISABILITY
                                -----------------

6.1      Death
         -----

         If  the  Employee  dies  while  employed  under  this  Agreement,  this
Agreement  shall terminate  immediately.  The Company will pay to the Employee's
estate his base salary  under  Section 3.1 through the last day of the  calendar
month in which he dies, plus any incentive  compensation awarded to the Employee
under the Incentive Compensation Plan, but not yet paid, and such death benefits
as may be provided pursuant to Section 4.4.

6.2.     Disability
         ----------

         If the Employee fails to perform his duties under this Agreement due to
"Disability", as defined below, the Company may terminate this Agreement upon 30
days written  notice to him. In that event,  the Company  shall pay the Employee
his base salary  under  Section 3.1 through the date of  termination;  provided,
however,  that to the extent  the  Employee  is  receiving  disability  benefits
pursuant  to the  Company's  disability  insurance  policy,  the  amount of such
benefits shall be credited  against the Employee's base salary during the period
prior to the date of termination.  In addition,  upon any termination based upon
Disability,  the Company  shall pay to the Employee any  incentive  compensation
awarded to the Employee under the Incentive  Compensation Plan but not yet paid.
The term  "Disability"  shall mean the  inability of the Employee to perform for
the  Company  the duties  specified  in Section  1.1 by reason of any  medically
determinable  physical or mental impairment for (i) a period of four consecutive
months,  (ii) for shorter periods aggregating five months in any 12-month period
or (iii) if the  Board of  Directors  determines  that it is  probable  that the
Disability  will  continue for a length of time so as to constitute a Disability
under clauses (i) or (ii) above.  The  determination  of whether the Employee is
Disabled shall be made by the Board of Directors on the basis of written medical
evidence reasonably satisfactory to it. Notwithstanding anything to the contrary

                                       6


in the  foregoing,  in the event of a  termination  of the Employee  pursuant to
clause  (iii),  the Company  will pay the Employee a minimum of four months base
salary following such  termination;  provided,  however,  that to the extent the
Employee is receiving  disability benefits pursuant to the Company's  disability
insurance  policy,  the amount of such  benefits  shall be credited  against the
Employee's base salary.


                                    ARTICLE 7
                                    ---------

                                   TERMINATION
                                   -----------

 7.1     Termination by the Employee for Good Reason
         -------------------------------------------

         The Employee may terminate  this  Agreement for good reason upon ninety
(90) days  written  notice to the Company  setting  forth with  specificity  the
grounds for  termination  upon the occurrence of any of the  following:  (a) the
failure of the Company to observe or comply with any of its material obligations
under this  Agreement,  if such  failure has not been cured within 30 days after
written  notice  thereof has been given by the Employee to the Company;  (b) the
dissolution  of the  Company;  or (c) any merger in which the Company is not the
surviving corporation and in which the stockholders of the Company own less than
50% of the voting  securities of the merged entity upon the effectiveness of the
merger,  or any  consolidation,  sale of substantially  all of the assets of the
Company or change of control  of the  Company,  provided  the  Employee  has not
approved the  transaction by voting for it either as a director or  shareholder.
For  purposes  of clause (a) a material  breach by the Company  shall  include a
material change in the reporting  responsibilities of the Employee such that the
Employee is no longer effectively  serving as the Chief Financial Officer of the
Company,  a material  reduction in benefits or other  perquisites of office such
that the Employee is not receiving the benefits set forth herein or the benefits
and other  perquisites  generally  granted for  executive  positions  within the
Company.  For  purposes  of clause (c) above,  a "change  of  control"  shall be
presumed  to have  occurred  if within any  12-month  period a single  person or
entity,  or related  group of persons or  entities,  acquires 50% or more of the
outstanding voting stock of the Company.  In the event of a termination for good
reason  under this  Section,  the Company  shall pay the  Employee  (i) his base
salary as then in effect under Section 3.1 through the date of termination, (ii)
any  incentive   compensation  awarded  to  the  Employee  under  the  Incentive
Compensation  Plan, but not yet paid, and (iii) the severance  benefit set forth
in Section 4.2.

7.2.     Termination by the Company for Cause
         ------------------------------------

         The Company may  terminate  this  Agreement for cause in the manner set
forth below.  For purposes of this  Section,  "cause"  shall mean (a) a material
breach  by the  Employee  of the  terms  of this  Agreement,  including  without
limitation  failure by the Employee to perform a material  portion of his duties
hereunder (not otherwise excused by the disability of the Employee) (b) criminal
misconduct  or unethical  conduct,  whether or not in relation to the  Company's
affairs  or  business,  which  reflects  adversely  upon  Employee's  honesty or
integrity in the  performance  of his duties as an employee of the  Company,  or
which otherwise is materially  detrimental to the interests of the Company;  (c)
if the Employee is found guilty or pleads nolo contendere to the commission of a

                                       7


crime  classified  as a felony  under any  Federal,  state or local law; and (d)
commission by the Employee of an act of gross  incompetence in the course of his
employment  hereunder.  The term "cause" as used in the preceding  sentence does
not include the  Employee's  erroneous  judgment or  judgments  of a  technical,
scientific,  financial,  legal and/or  environmental nature which were, although
erroneous,  nevertheless  reasonable at the time and under the  circumstances in
which they were  made.  In the event of  termination  under  this  Section,  the
Company  shall pay to the Employee his base salary under Section 3.1 through the
date of termination stated in the notice plus any incentive compensation awarded
to the Employee under the Incentive  Compensation Plan but not yet paid, and the
Employee  shall,  if so requested by the Chief  Executive  Officer,  perform his
duties under Article 1 through the date of termination stated in the notice.

7.3.     Termination by the Company for Cause-Procedure
         ----------------------------------------------

         Notwithstanding anything to the contrary set forth herein, the Employee
shall not be deemed to be have been terminated for cause without (i) delivery to
the  Employee of written  notice  setting  forth the  reasons for the  Company's
intention to terminate for cause, and (ii) an opportunity for the Employee to be
heard before the Chief Executive Officer within five business days thereafter.

7.4.     Termination by the Company or the Employee Without Cause
         --------------------------------------------------------

         Either the Company or the Employee may  terminate  this  Agreement  for
reasons  other than as set forth  above in Section  7.1 or Section 7.2 and which
are not  otherwise  within  Article  6 upon 30 days  written  notice.  Upon such
termination,  the Company  shall pay the Employee his base salary under  Section
3.1  through  the date of  termination  (provided,  however,  that the  Employee
continues to be available to perform the  services  required  under  Section 1.1
through the date of termination), plus any incentive compensation awarded to the
Employee  under the  Incentive  Compensation  Plan,  but not yet  paid,  and any
accrued vacation.  In addition,  upon the Company's  termination of the Employee
without  cause,  the Company shall be required to pay the Employee the severance
benefit set forth in Section 4.2. Nothing herein shall prohibit the Company from
relieving  the  Employee  of any or all of  his  duties  hereunder  pending  the
expiration of the 30-day notice period.

7.5.     Termination of Duties
         ---------------------

         Notwithstanding  anything to the contrary set forth herein, at any time
on or after delivery of written notice to the Employee,  the Company may relieve
the Employee of all of his duties and responsibilities hereunder and may relieve
the  Employee of authority  to act on behalf of, or legally  bind,  the Company;
provided,  however,  that any such action by the  Company  shall not relieve the
Company of its obligation to pay to the Employee all  compensation  and benefits
otherwise provided for in this Agreement.

                                       8


                                    ARTICLE 8
                                    ---------

                                  MISCELLANEOUS
                                  -------------

8.1      No Conflicting Agreements.
         --------------------------

         The Employee represents and warrants to the Company,  that the Employee
is not under any obligation to any person or entity which is  inconsistent  with
or in conflict with any of the terms of this  Agreement or which would  prevent,
limit or impair in any way the  Employee's  performance of all the terms of this
Agreement  and the  Employee  agrees  not to enter  into any  agreement,  either
written or oral, in conflict herewith.

8.2.     Entire Agreement
         ----------------

         This Agreement contains the entire  understanding and agreement between
the Company and the Employee and cannot be amended, modified, or supplemented in
any respect except by subsequent written agreement entered into by both parties.

8.3.     Successors of the Company
         -------------------------

         This  Agreement  shall inure to the benefit of and be binding  upon the
Company, its successors and assigns, including,  without limitation, any person,
firm,  corporation or other entity which may acquire all or substantially all of
the  Company's  assets and  business,  or with or into which the  Company may be
consolidated  or  merged,  and this  provision  shall  apply in the event of any
subsequent merger,  consolidation or transfer.  In every respect, this Agreement
shall  inure to the  benefit of and be  binding  upon the  Employee,  his heirs,
executors and personal  representatives and, being personal in nature, shall not
be assignable by the Employee.

8.4.     Effect of Waiver
         ----------------

         The  waiver  by  either  party of a  breach  of any  provision  of this
Agreement  shall not operate as or be  construed  as a waiver of any  subsequent
breach.

8.5.     Notices
         -------

         Any notice,  request,  demand or other communication in connection with
this  Agreement  must be in  writing  and shall be deemed to have been given and
received  three days after a certified  or  registered  letter  containing  such
notice,  properly  addressed,  with postage prepaid,  is deposited in the United
States mail;  and, if given  otherwise than by registered or certified  mail, it
shall not be deemed to have been given until actually  delivered to and received
by the party to whom it is addressed.

                    A.     Notice to the Company shall be given at its principal
                           mailing  address,  which at the time of  execution of
                           this  Agreement  is 3 Great  Pasture  Road,  Danbury,
                           Connecticut,   06813,   Attention:   Chief  Executive
                           Officer,   or  at  such  other   address  as  it  may
                           designate.

                                       9


B. Notice to the Employee shall be given at his home address,  which at the time
of execution  of this  Agreement is the address set forth in the heading of this
Agreement, or at such other address as he may designate.

8.6.     Counterparts
         ------------

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

8.7.     Severability
         ------------

         If,  in any  jurisdiction,  any  provision  of  this  Agreement  or its
application  to  any  party  or  circumstances  is  restricted,   prohibited  or
unenforceable,  such provision  shall, as to such  jurisdiction,  be ineffective
only to the extent of such restriction,  prohibition or unenforceability without
invalidating the remaining  provisions hereof and without affecting the validity
or enforceability of such provision in any other jurisdiction or its application
to other parties or circumstances.

8.8.     Survival
         --------

         Each of the terms and provision of this  Agreement  which are expressly
or impliedly so intended shall survive the termination of this Agreement.

8.9.     Applicable Law
         --------------

         This Agreement shall be governed by and construed according to the laws
of the State of Connecticut.

     IN WITNESS WHEREOF,  the parties have executed this Agreement as of the day
and year first stated above.
                           ENERGY RESEARCH CORPORATION


                                  By:      /s/ Jerry D. Leitman
                                           --------------------

                                           Jerry Leitman
                                           Chief Executive Officer

                                           /s/ Joseph G. Mahler
                                           ---------------------
                                           Joseph G. Mahler


                                       10