EXHIBIT 10.12

                    SUBLEASE, MADE AS OF SEPTEMBER 1, 1995

                BETWEEN VICON INDUSTRIES, INC., AS SUBLESSOR,

                AND NEW YORK BLOOD CENTER, INC., AS SUBLESSEE





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                               TABLE OF CONTENTS

                                                                            Page


      1.    Demise of Subleased Premises; Term; etc........................  1

      2.    Cafeteria......................................................  2

      3.    Rent; Rent-Concession; etc.....................................  2

      4.    Real Estate Tax and Utility Cost Escalations...................  4

      5.    [Intentionally Omitted]........................................  6

      6.    Use of Subleased Premises/Parking..............................  6

      7.    Services Provided By Sublessor.................................  7

      8.    Subordination to Overlease, etc................................  8

      9.    Sublessor's Rights, etc........................................  9

      10.   One Time Renewal Option........................................  9

      11.   [Intentionally Omitted]........................................ 10

      12.   Broker......................................................... 10

      13.   [Intentionally Omitted]........................................ 10

      14.   Indemnification................................................ 10

      15.   Insurance...................................................... 11

      16.   Casualty....................................................... 11

      17.   Condemnation................................................... 12

      18.   Notice, etc.................................................... 12

      19.   Attornment With Respect to Overlease........................... 13

      20.   Quiet Enjoyment................................................ 14

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      21.   Assignment and Subletting...................................... 14

      22.   [Intentionally Omitted]........................................ 16

      23.   Additional Covenants Required by Overlease..................... 16

      24.   Signs.......................................................... 17

      25.   Alterations.................................................... 17

      26.   [Intentionally Omitted]........................................ 18

      27.   Care of the Premises........................................... 18

      28.   Environmental Hazards.......................................... 19

      29.   Miscellaneous.................................................. 19

      30.   Early Termination.............................................. 21

      31.   [Intentionally omitted]........................................ 22

      32.   The Americans With Disabilities Act............................ 22

33.   Counterparts......................................................... 23


EXHIBIT A         Diagram of Subleased Premises............................ 24

EXHIBIT B         Diagram of Corridor to Cafeteria......................... 25

EXHIBIT C         Overlease (Including Amendments)......................... 26

EXHIBIT D         Driveway Construction by Sublessee....................... 27


007326/13000/180.6





                    SUBLEASE, MADE AS OF SEPTEMBER 1, 1995
                BETWEEN VICON INDUSTRIES, INC., AS SUBLESSOR,
                AND NEW YORK BLOOD CENTER, INC., AS SUBLESSEE


            SUBLEASE,  made  as of  September  1,  1995,  by and  between  Vicon
Industries, Inc. ("Sublessor"), a New York corporation with offices at 525 Broad
Hollow  Road,  Melville,  New  York  11747,  and New  York  Blood  Center,  Inc.
("Sublessee"),  a New York  not-for-profit  corporation with offices at 310 East
67th Street, New York, New York 10021.


                                 WITNESSETH:


            WHEREAS,  Sublessor is the tenant under an agreement of lease, dated
January  19,  1988,   between  Allan  V.  Rose  and  Suffolk  County  Industrial
Development Agency, as landlord, the landlord's interest in which is now held by
Allan V. Rose (hereinafter referred to as "Landlord"),  and Sublessor as tenant,
for the land and building  known as 525 Broad Hollow  Road,  Melville,  New York
11747  (collectively  the "Premises") and amendments  dated as of July 18, 1990,
July 18, 1990 (letter agreement) and January 1, 1993 (the "Overlease"); and

            WHEREAS, Sublessor desires to sublease a portion of the Premises to
Sublessee; and

          WHEREAS,  Sublessee desires to sublease a portion of the Premises from
     Sublessor;

            NOW,  THEREFORE,  in consideration of the premises and of the mutual
covenants and conditions hereinafter set forth, the parties agree as follows:

            1.    Demise of Subleased Premises; Term; etc.

            Sublessor  hereby sublets to Sublessee and Sublessee  subleases from
Sublessor  that  portion  of  the  Premises  (hereinafter  referred  to  as  the
"Subleased  Premises")  consisting of approximately  28,239.4 square feet in the
building (the "Building") known as 525 Broad Hollow Road, Melville, New York, as
shown on the  diagrams  annexed  hereto as Exhibit A, for a term of 1 year and 6
months, which term shall commence on September 1, 1995 (the "Commencement Date")
and terminate on February 28, 1997 (subject to  Sublessee's  one-time  option to
extend set forth in Par.  10). In  addition,  to the extent that  Sublessee  has
previously  installed  or is  permitted  to install  HVAC or other  equipment or
facilities that service the Subleased  Premises,  but are located outside of the
Subleased  Premises,  Sublessee  shall also , during the term of this  Sublease,
have the right to maintain such  equipment or facilities  and shall have a right
of access over and through the Premises outside of the Subleased Premises

                                      1





to the extent reasonably  required for the maintenance,  servicing and repair of
such equipment or facilities.

            Sublessee shall, upon Sublessor's  request,  give Sublessor a letter
acknowledging that Sublessee has accepted possession of the Subleased Premises.

            2.    Cafeteria.

                  (a) So long as Sublessee  is not in default  under this Lease,
      it may utilize the cafeteria maintained by Sublessor at the Premises, as a
      lunch area for Sublessee's  employees employed at the Subleased  Premises,
      in common with the employees of the Sublessor and of any other  subtenant,
      subject to such  reasonable  restrictions  as  Sublessor  may  impose.  If
      Sublessor  shall  discontinue  maintenance of a cafeteria at the Premises,
      all  rights  and   obligations  of  Sublessor  and  Sublessee  under  this
      subparagraph shall terminate as of the date of such discontinuance.

                  (b)  Sublessee has  constructed  a corridor  (the  "Corridor")
      within the Building,  connecting the Subleased  Premises to the cafeteria,
      in the  location  shown on Exhibit B annexed  hereto.  The Corridor is not
      included in the  Subleased  Premises  and may be used both by  Sublessee's
      employees  and  by   Sublessor's   employees  and  invitees,   subject  to
      Sublessor's  right  to  inspect  and  show  as  provided  herein  (through
      incorporation  of the  Overlease).  Sublessee  shall  be  responsible  for
      maintaining  the Corridor in good repair and  condition  and in compliance
      with all laws, orders, and regulations of all governmental bodies.

            3.    Rent; Rent-Concession; etc.

                  (a)  Sublessee  shall  pay  to  Sublessor  the  base  rent  as
      hereinafter provided. Commencing September 1, 1995 and ending February 28,
      1997 the annual base rent for the Subleased  Premises shall be $416,531.15
      per annum  ($34,710.93  per month),  subject to adjustment as  hereinafter
      provided.  Such base rent was computed by  multiplying  the Leasable  Area
      (hereinafter defined) by $14.75 per square foot. The "Leasable Area" means
      the gross square  footage of the  Subleased  Premises  measured to a point
      halfway  through each of the perimeter  walls of the  Subleased  Premises.
      Sublessee  may, on or before  September 1, 1995, at  Sublessee's  expense,
      review  Sublessor's   measurements  of  the  Subleased  Premises  and,  if
      Sublessor's  determination  that the Leasable Area is 28,239.4 square feet
      is wrong,  the base rent  shall be  appropriately  adjusted.  In the event
      Sublessee  fails to object to  Sublessor's  measurements  by  September 1,
      1995, Sublessor's measurements shall be deemed binding.

                  (b) Such base rent shall be paid in equal monthly installments
      on the first day of each  month  during the term of this  Lease,  in legal
      tender of the United  States at the office of Sublessor  at the  Premises,
      without any setoff, abatement, or

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      deduction whatsoever (except as set forth in Paragraphs 16 and 17 hereof);
      provided that the  foregoing  shall not be deemed a waiver by Sublessee of
      any claim against Sublessor based on Sublessor's  breach of this Sublease,
      which  claim(s) may be asserted by  Sublessee  in any  separate  action or
      proceeding.  Sublessee  shall  pay the  first  month's  base rent upon the
      Commencement Date of this Sublease.

                  (c)   [Intentionally omitted]

                  (d) If Sublessee shall fail to pay (by delivery to and receipt
      by Sublessor of a good check for the requisite  amount) all or any part of
      any  installment  of rent or additional  rent for more than ten days after
      the same shall have become due and payable hereunder,  Sublessee shall pay
      as additional  rent hereunder to Sublessor (1) a one-time late charge with
      respect to such default  equal to four cents for each dollar of the amount
      of such  rent and  additional  rent  which  shall  not have  been  paid to
      Sublessor  within such ten days and (ii) in the event such  default  shall
      continue  for a period in excess of one month,  then,  in addition to such
      late charge,  interest on such overdue amount at the prime rate, currently
      denominated  as the "base rate",  of Citibank,  N.A. in New York, New York
      from  that  date one  month  after  the due date  thereof  until  the date
      Sublessor is paid in full. If Sublessee pays any rent or other charge with
      a check that is, for any reason,  refused for payment by the bank on which
      it is drawn,  Sublessee shall pay Sublessor a $50 service charge. The late
      charge,  interest, and service charge described above shall be payable (A)
      within  10  days  after  demand  and  (B)  without  prejudice  to  any  of
      Sublessor's  rights  and  remedies  hereunder,  at law or in  equity,  for
      nonpayment  of rent or other  sums,  but shall be in  addition to any such
      rights and  remedies.  No failure by  Sublessor  to insist upon the strict
      performance by Sublessee of  Sublessee's  obligations to pay late charges,
      interest,  and  service  charges as provided  in this  subparagraph  shall
      constitute a waiver by Sublessor of its right to enforce the provisions of
      this  subparagraph  in any such  instance  or in any  instance  thereafter
      occurring.

                  (e) Any costs or expenses  incurred by  Sublessor  to cure any
      default  by  Sublessee  under this  Lease  which was not cured  within the
      applicable cure period (except that in an emergency Sublessor shall not be
      required  to wait  for  the  expiration  of the  cure  period),  excluding
      attorneys'  fees,  shall be paid by Sublessee to Sublessor  within 10 days
      after Sublessor makes demand therefor and shall be treated in all respects
      as rent. Any default by Sublessee in the payment of such damages, costs or
      expenses  shall be  treated  as a  default  in the  payment  of rent,  and
      Sublessor shall have the same remedies with respect thereto as it has with
      respect to any default in payment of rent.

                  (f)  Sublessee's  obligations  to make  payments of additional
      rent  allocable  to the term of this  Sublease  which are billed after the
      expiration of the term of this  Sublease,  shall survive the expiration or
      sooner termination of this Sublease.


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            4.    Real Estate Tax and Utility Cost Escalations.

                  (a) For the  purposes of this  Sublease  the  following  terms
      shall have the following meanings:

                        (i) "Real Estate Taxes" shall mean all "Impositions" (as
            defined in section 4.1(A) of the Overlease).

                        (ii) "Tax Year" shall mean each  12-month  fiscal period
            commencing  December 1 and ending  November 30, any portion of which
            occurs during the term of this Sublease.

                            (iii)  "Base  Tax  Year"  shall  mean  the Tax  Year
            commencing December 1, 1994 and expiring November 30, 1995.

                        (iv)  "Subsequent  Year" shall mean (A) with  respect to
            Real Estate Taxes, each Tax Year (or any portion thereof) commencing
            within the term of this Lease which shall be  subsequent to the Base
            Tax  Year;  and  (B)  with  respect  to  Utility  Cost  (hereinafter
            defined),  the 1995 calendar year and each subsequent  calendar year
            which commences during the term of this Sublease.

                        (v)   "Sublessee's   Proportionate   Share"  shall  mean
            26.148%,  the  percentage  obtained by dividing the Leasable Area by
            108,000 (the Leasable Area of the  Building).  Sublessee  may, on or
            before  September  1, 1995,  at  Sublessee's  expense,  review  such
            measurements  and give Sublessor  notice of any discrepancy  between
            Sublessor's and Sublessee's measurements.

                        (vi) "Utility Cost" shall mean  Sublessor's cost for all
            fuel  (including,  but not limited to, oil, gas,  steam and coal but
            excluding electricity) delivered to the Building.

                            (vii) "Base  Utility  Cost"  shall mean  Sublessor's
            Utility Cost for the 1995 calendar year.

                  (b) If in any  Subsequent  Year,  Real  Estate  Taxes  payable
      during  such  Subsequent  Year shall be  greater  than Real  Estate  Taxes
      payable during the Base Tax Year for any reason whatsoever  (including but
      not limited to increases in the tax rates and/or the assessed valuation of
      the  Building,   and   increases  in  assessed   valuation  by  reason  of
      improvements  made to the  Premises  or any  part  thereof),  foreseen  or
      unforeseen,  then  Sublessee  shall pay Sublessor as  additional  rent, an
      amount (hereinafter called "Sublessee's Tax Payment") equal to Sublessee's
      Proportionate  Share of such increase.  Such additional rent shall be paid
      by Sublessee  notwithstanding  the fact that  Sublessee may be exempt,  in
      whole or in part, from the

007326/13000/180.6
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      payment  of any Real  Estate  Taxes by  reason of  Sublessee's  diplomatic
      charitable,  or  otherwise  tax  exempt  status,  or for any other  reason
      whatsoever.  Sublessor  shall furnish  Sublessee with a statement  setting
      forth the amount of Real Estate Taxes and  Sublessee's Tax Payment payable
      for such Subsequent  Year, and Sublessee shall pay Sublessee's Tax Payment
      in one  lump  sum  within  fifteen  (15)  days of the  furnishing  of such
      statement,  but shall not in any event be required to pay  Sublessee's Tax
      Payment more than five (5) days before the commencement of the Tax Year.

                  (c) If the Utility Cost payable for any  Subsequent  Year (any
      part or all of  which  falls  within  the  term of  this  Sublease)  shall
      represent an increase above the Base Utility Cost,  then  Sublessee  shall
      pay  Sublessor as additional  rent for such  Subsequent  Year  Sublessee's
      Proportionate  Share of such increase in one lump sum within 15 days after
      Sublessor furnishes to Sublessee a statement of the amount due.

                  (d) (i) Any statement  sent to Sublessee  with respect to Real
      Estate Taxes shall be binding upon  Sublessee  unless,  within thirty (30)
      days after such statement is sent,  Sublessee  shall send a written notice
      to Sublessor  objecting to such  statement and  specifying the respects in
      which such  statement is claimed to be incorrect.  Any  statement  sent to
      Sublessee  with respect to Utility  Cost shall be binding  upon  Sublessee
      unless,  within 30 days  after such  statement  is sent,  Sublessee  shall
      request copies of the fuel bills  supporting the Utility Cost  computation
      (to the extent not previously  furnished) and unless, within 30 days after
      delivery of copies of such bills,  Sublessee  shall send written notice to
      Sublessor objecting to such statement and specifying the respects in which
      such statement is claimed to be incorrect.  Pending the  determination  of
      any such dispute  Sublessee  shall pay all  additional  rent shown on such
      statement,  and such payment and acceptance shall be without  prejudice to
      Sublessee's position.

                        (ii) Real Estate Tax and Utility Cost escalations  shall
            be  appropriately  prorated  for any partial  Subsequent  Year.  Any
            additional  rent due under this  Paragraph 4 shall be collectible by
            Sublessor in the same manner as the base rent,  and Sublessor  shall
            have all rights with  respect  thereto as it has with respect to the
            base rent.

                            (iii)   If,   after   Sublessee   shall   have  paid
            Sublessee's Proportionate Share of any increase in Real Estate Taxes
            with  respect to any  Subsequent  Year,  Sublessor  shall  receive a
            refund of any portion of the Real Estate  Taxes paid with respect to
            such  Subsequent Year as a result of a reduction in such Real Estate
            Taxes by final  determination  of legal  proceedings,  settlement or
            otherwise,  Sublessor shall  promptly,  after receiving such refund,
            pay Sublessee its Proportionate Share of such refund after deducting
            from  such  refund  the  expenses  (including  but  not  limited  to
            attorneys'  fees,  expert's  fees  and  disbursements)  incurred  by
            Sublessor in

007326/13000/180.6
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            connection with any application or proceeding to reduce the assessed
            valuation of the Premises for such Subsequent Year.

                  (e)  Notwithstanding  the foregoing or any other  provision of
      this Sublease, Sublessor specifically waives its right to collect the Real
      Estate Tax  escalation  for the tax year  commencing  December 1, 1994 and
      ending  November 30, 1995 and to collect the Utility Cost  escalation  for
      the 1995 calendar year. The parties confirm that Sublessee's  Proportional
      Share is 26.148%.

            5.    [Intentionally Omitted]

            6.    Use of Subleased Premises/Parking.

                  (a) Sublessee shall use and occupy the Subleased  Premises for
      (i) office use and (ii)  incidental  to such  office  use,  for storage of
      supplies (but not for storage of blood or blood  products or medical waste
      except  as   hereinafter   specifically   provided)   and  for   telephone
      solicitations and (iii) to collect blood from donors provided that no more
      than 13.5% of the Leasable  Area shall be used for blood  collection;  and
      for no other purpose.  Without limiting the foregoing,  except as provided
      below,  Sublessee agrees that it shall not use the Subleased Premises as a
      laboratory to process  blood or blood  products or to store blood or blood
      products or medical waste  (hereinafter  defined) or for any  pornographic
      purposes or any sort of commercial sex establishment.

                  (b)  Notwithstanding  the provisions of Par. 6(a) or any other
      provision of this Sublease,  Sublessee shall have the right to use an area
      of 3,964 square feet, as identified on Exhibit A (the "Option Area"), for:
      (i) the purposes described in subpar. (a) above and (ii) in addition, as a
      laboratory to process  blood or blood  products or to store blood or blood
      products and, further,  as a "stat" lab for emergency testing of blood, it
      being  agreed that the uses listed in this clause (ii) may not be operated
      in any portion of the Subleased Premises outside of the Option Area.

                  (c) Sublessor  shall assign 155 parking  spaces in the parking
      lot around the Building for  Sublessee's  use, and Sublessee shall clearly
      mark such spaces for its use. Sublessee's employees and invitees shall not
      use other parking spaces on the Premises.  In the event that the volume of
      traffic  through  the  parking  lot on the  Premises  or  the  streets  or
      intersections  bordering  the  Premises  is  increased  (or  claimed to be
      increased by any government authority) by reason of Sublessee's use of the
      Subleased Premises (for example, if the volume of the traffic increases by
      reason of  Sublessee's  donor  collection  activities)  and if the Town of
      Huntington  or any  other  federal,  state,  municipal,  county,  or local
      government,  department,  commission, board or agency, makes any objection
      or issues any direction with respect to such condition, then Sublessee, at
      its own cost and expense,  shall comply with any such  direction and shall
      be responsible for removing any such objection and shall be

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      responsible  for any costs or penalties  that are imposed on the Building,
      the  Premises,  Landlord,  Sublessor  or  Sublessee  with  respect to such
      matters, which payment(s) shall be deemed additional rent hereunder.

            7.    Services Provided By Sublessor.

                  (a) As long as  Sublessee  is not in default,  Sublessor  will
      provide (i) heat to the Subleased  Premises when and as required by law on
      business days,from 7 a.m. to 7 p.m. and on Saturdays from 8 a.m. to 1 p.m.
      (collectively, "Business Hours"); (ii) parking lot snow removal; and (iii)
      water as required up to the amount  that would be required  for  executive
      lavatory  purposes  but,  if  Sublessee  uses  or  consumes  water  beyond
      executive lavatory use, Sublessor may install a water meter at Sublessee's
      expense which Sublessee shall thereafter  maintain at Sublessee's  expense
      in good working  order and repair for the purpose of measuring  such water
      consumption  and Sublessee  shall pay for water  consumed as shown on said
      meter  as  additional  rent as and  when  bills  are  rendered;  and  (iv)
      groundskeeping.  Sublessor may interrupt  such services when  necessary by
      reason  of  accident  or  for  repairs,   alterations,   replacements   or
      improvements  necessary or desirable  in  Sublessor's  judgment so long as
      reasonably  required  therefor or by reason of strike or labor troubles or
      any cause whatsoever beyond Sublessor's sole control.

                  (b)  Sublessor  shall  service  the HVAC  system  serving  the
      Subleased  Premises on a routine  basis by starting  the  equipment in the
      spring, providing regular service and maintenance inspections,  installing
      filters as needed, and shutting down the system for the winter.  Sublessor
      shall make  routine,  minor repairs to the system as part of such service.
      Sublessee,  however,  shall be responsible  for making all other necessary
      repairs and replacements.

                  (c) (i) Sublessee  shall obtain electric  service,  at its own
      cost and expense, directly from the utility servicing the Building.

                        (ii)  [Intentionally Omitted]

                            (iii)  Sublessee's  use of  electric  current in the
            Subleased  Premises shall not at any time exceed the capacity of any
            of the electrical  conductors and equipment in or otherwise  serving
            the Subleased Premises. In order to ensure that such capacity is not
            exceeded and to avert  possible  adverse  effect upon the Building's
            electric  service,  Sublessee  shall not without  Sublessor's  prior
            written consent,  which consent shall not be unreasonably  withheld,
            in  each  instance,  connect  any  additional  electrical  fixtures,
            appliances or equipment  (other than lamps,  typewriters,  and other
            electrical equipment with electric consumption equivalent to that of
            standard office  machines) to the Building's  electric  distribution
            system or make any alteration or addition to the  electrical  system
            of the Subleased Premises. Should

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            Sublessor  grant such consent and if additional  risers or equipment
            shall  be  required  therefor,   same  shall  be  installed  by  the
            Sublessor,  and  the  cost  thereof  shall  be  paid  by  Sublessee.
            Sublessor  shall  not be  liable  in any  way to  Sublessee  for any
            failure  or  defect  in  supply or  character  of  electric  current
            furnished to the Subleased  Premises  (other than such as may result
            from  Sublessor's  gross  negligence  or  wrongful  act or  wrongful
            omission), including but not limited to any failure or defect in the
            supply or character of electric  service  furnished to the Subleased
            Premises  by  reason  of any  requirement,  act or  omission  of the
            utility serving the Building.

                        (iv)  [Intentionally Omitted]

            8.    Subordination to Overlease, etc.

                  (a) Except as hereinafter otherwise provided, this Sublease is
      expressly  subject and subordinate to the covenants,  terms and conditions
      of the Overlease and the rights of the landlord thereunder and to the lien
      of any mortgages which may now or hereafter  encumber or otherwise  affect
      the real estate of which the  Subleased  Premises  form a part.  Sublessee
      hereby  acknowledges  and represents that it has read the Overlease and is
      familiar with all of the provisions thereof. A copy of the Overlease, with
      certain provisions deleted, is annexed hereto as Exhibit C.

                  (b) Except as set forth in  subparagraph  (d) below and except
      to the  extent  that such  terms are  inconsistent  with the terms of this
      Sublease,  Sublessee  shall be bound by and comply  with all of the terms,
      covenants and  conditions to be observed and performed by the tenant under
      the Overlease, as they relate to the Subleased Premises and to the term of
      this Sublease,  and Sublessee shall not do or permit to be done any act or
      thing,  or  create  or  permit  to be  created  any  condition,  which may
      constitute a breach,  default or violation of any of the terms,  covenants
      or conditions of the Overlease,  or which may render  Sublessor liable for
      any charge or expense thereunder.

                  (c)  Sublessor  shall have the same rights and  remedies  with
      respect to this Sublease and Sublessee as the Landlord has with respect to
      the Overlease and the tenant thereunder as though such rights and remedies
      set forth in the  Overlease  in favor of  Landlord  were set forth in this
      Sublease in favor of Sublessor,  including  without limiting the foregoing
      all of the rights and remedies  provided in the Overlease for  non-payment
      of rent and the  right to cure  defaults  of  Sublessee.  Except as herein
      provided,  all of the terms, covenants and conditions of the Overlease are
      incorporated  herein with the same force and effect as if herein set forth
      in full and the rights and  obligations  contained  in the  Overlease  are
      hereby  imposed  on  the  respective  parties  hereto.  References  in the
      Overlease to "Landlord" or "Sublessor",  to "Tenant",  to "Lease",  and to
      "premises"  or  "demised  premises"  are  deemed  to refer  to  Sublessor,
      Sublessee,  this Sublease and the Subleased  Premises,  respectively;  any
      references to

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      Base Rent or Fixed Net Rent in the Overlease  shall be deemed to be to the
      rent payable  hereunder,  and  references  to the  expiration  date of the
      Overlease  shall be deemed made to the  expiration  date of this Sublease;
      and  where the  sense of the text  requires  it,  references  to  specific
      paragraphs  and  terms  in the  Overlease  shall  be  deemed  made  to the
      corresponding   paragraph  and  terms  hereunder.   Without  limiting  the
      foregoing, Article 16 (Default Provisions) of the Overlease, including the
      cure periods set forth  therein,  shall become a part of this  Sublease as
      provided above, with the following  modifications:  (i) Section 16.1(d) is
      modified to delete the words "for five days after written  notice  thereof
      from Landlord" and to substitute therefor the following language: "for ten
      days  after the due date  thereof";  and (ii) all  references  in the last
      paragraph  of Section  16.1 to "three (3) days"  shall be changed to "five
      (5) days"  unless such  extension  of time would cause  Sublessor to be in
      breach of the Overlease.

                  (d) The  following  Articles  and  sections  contained  in the
      Overlease  shall not be deemed  incorporated  in this Sublease  (except as
      herein  specifically  provided):  1;  2;  4  (except  to the  extent  such
      Impositions   are  payable  by  Sublessee  as  part  of  Real  Estate  Tax
      escalation);  5; the first  sentence  of 6.1;  6.2;  6.4;  7; 8; the first
      sentence of 11.1; 11.2; 11.3;  12.1(b),  (d) and (e) (except to the extent
      payable as part of escalations and additional rent hereunder);  the second
      sentence of 12.3;  13; 14; 19.3; 20 (except to the extent noted in Par. 21
      of this Sublease); 22; 23; 24; 28; 32; 37 and 40; Amendment dated July 18,
      1990;  Amendment  dated July 18, 1990 (letter  agreement);  and  Amendment
      dated as of January  1, 1993.  Notwithstanding  anything  to the  contrary
      contained in Article 10 of the Overlease,  Sublessee shall not be required
      to discharge any lien,  encumbrance or charge against the Premises created
      by or imposed on account of Sublessor or Overlandlord.

            9.    Sublessor's Rights, etc.

            Except with respect to those  obligations of Sublessor  specifically
set forth in this  Sublease,  Sublessor  does not  undertake  any  obligation to
perform the terms,  covenants and  conditions  contained in the Overlease on the
Landlord's part to be performed thereunder.

            10.   One Time Renewal Option.

            If  Sublessee  is not then in  default  beyond  any notice and grace
period provided for in this Sublease, Sublessee may renew this Sublease upon all
of the terms,  covenants and conditions set forth herein for an additional  term
of 11 months commencing March 1, 1997 and ending on January 30, 1998, by written
notice of such renewal delivered to Sublessor no later than October 31, 1996. In
the event this  Sublease is timely  renewed as provided in this  Paragraph,  the
base rent payable during the first year of the renewal term shall be $416,531.15
per annum  ($34,710.93  per month).  During such extended term Sublessee  shall,
among other things, continue to pay Real Estate/Tax and Utility Cost escalations
utilizing the same Base Tax Year and Base Utility Cost set forth in Paragraph 4.
This

007326/13000/180.6
                                      9





Paragraph 10 shall be deemed void and of no further force or effect if Sublessee
or  Sublessor  exercises  any right to cancel  this  Sublease,  including  under
Paragraphs  16, 17 and 30.  Time is of the essence  with  respect to the date by
which Sublessee is to give Sublessor notice hereunder.

            11.   [Intentionally Omitted]

            12.   Broker.

            Sublessee  represents  and warrants to Sublessor  that it has had no
dealings  or  communications  with any broker or agent in  connection  with this
Sublease.  Sublessee dealt with Cooperman  Associates in connection with a prior
sublease between the parties for a portion of the Subleased Premises.  Sublessee
agrees to indemnify  and hold  Sublessor  harmless  from and against any and all
costs,  expenses  (including  reasonable  attorneys' fees and disbursements) and
liabilities for any  compensation,  commissions or charges claimed by any broker
or agent with whom  Sublessee  has dealt  with  respect  to this  Sublease.  The
foregoing  indemnity  does not  extend to  Cooperman  Associates,  except to the
extent Cooperman Associates may make a claim based on dealings or communications
Sublessee  has had with  Cooperman  Associates  with  respect to this  Sublease.
Sublessor  agrees to indemnify and hold Sublessee  harmless from and against any
and all costs, expenses (including reasonable attorneys' fees and disbursements)
and liabilities for any compensation,  commissions or charges claimed by (a) any
broker or agent with whom Sublessor,  but not Sublessee,  has dealt with respect
to this Sublease,  and (b) Cooperman  Associates (except to the extent Cooperman
Associates  may make a claim based on dealings or  communications  Sublessee has
had with Cooperman Associates with respect to this Sublease).

            13.   [Intentionally Omitted]

            14.   Indemnification.

            Sublessee  hereby  agrees to indemnify and hold  Sublessor  harmless
from  and  against  any  and  all  losses,  liabilities,  damages  and  expenses
(including  reasonable  attorneys' fees and  disbursements)  for which Sublessor
shall not be reimbursed by insurance, which Sublessor may suffer or incur (i) in
connection  with  Sublessee's  breach of this Sublease  and/or failure to comply
with the applicable  terms and conditions of the Overlease,  or (ii) arising out
of damage or injury to persons or property in the  Subleased  Premises or on the
driveway constructed by Sublessee pursuant to Par. 25(b) during the term of this
Sublease,  unless injury or damage is caused by the negligence of Sublessor, its
agents,  servants,  employees or invitees.  Sublessor hereby agrees to indemnify
and hold  Sublessee  harmless from and against any and all losses,  liabilities,
damages and expenses  (including  reasonable  attorneys' fees and disbursements)
for which  Sublessee  shall not be reimbursed by insurance,  which Sublessee may
suffer or incur (i) in connection  with  Sublessor's  breach of this Sublease or
(ii)  arising  out of damage or injury to persons or property  occurring  on the
Premises,  but outside of the Subleased  Premises or such  driveway  unless such
injury or

007326/13000/180.6
                                      10





damage is caused by the negligence of Sublessee, its agents, servants, employees
or invitees.  The provisions of this Paragraph and  Sublessee's  and Sublessor's
obligations  hereunder shall survive the expiration or other termination of this
Sublease.

            15.   Insurance.

            During the term of this Sublease,  Sublessee  shall maintain in full
force and effect the comprehensive  public liability  insurance  required by the
Overlease,  except  that such  policy  shall be in a  combined  single  limit of
$2,000,000.  Sublessor and Landlord shall be named as additional insured on such
policy,  in  addition  to those  persons  and  entities  required to be named as
insured and  additional  insured under the  Overlease.  Such policy shall not be
cancelable with respect to Sublessor or Landlord,  except upon at least ten days
prior written  notice to Sublessor  and the Landlord  under the  Overlease.  Two
duplicate  originals  or  certificates  of such  policies  shall be delivered to
Sublessor,  together  with proof of payment of the  premiums  thereon,  upon the
commencement date of this Sublease and, thereafter,  at least thirty days before
each expiration thereof, two duplicate originals or certificates of the renewals
or  replacements  of such  policies  shall be  delivered to  Sublessor.  Nothing
contained  in  this  paragraph   shall  be  deemed  to  limit  in  any  way  the
indemnification provisions of Paragraph 14.

            16.   Casualty.

                  (a) If the Subleased  Premises  shall be partially  damaged by
      fire or other  insured  casualty,  the damages shall be repaired by and at
      the  expense of  Sublessor  and the base rent shall be abated from the day
      following  the  casualty  until the date such  repairs  are  substantially
      completed  according  to the  part of the  Subleased  Premises  which  are
      untenantable.  Notwithstanding the foregoing, Sublessor may terminate this
      Sublease upon notice to Sublessee  given within ninety (90) days following
      the date of such  casualty  and upon the date  specified  in such  notice,
      which date shall be not less than one hundred  twenty  (120) days nor more
      than one hundred  fifty (150) days  following  the giving of such  notice,
      this Sublease shall terminate and Sublessee shall vacate and surrender the
      Subleased Premises to Sublessor.

                  (b) If this Sublease shall not be terminated as provided above
      in subparagraph  (a),  Sublessor shall proceed with the restoration of the
      Subleased  Premises,  provided that  Sublessor's  restoration  obligations
      shall be subject to  building  and zoning  laws then in effect.  Sublessor
      shall make such repairs with reasonable expedition,  subject to delays due
      to  adjustment  of insurance  claims,  availability  of  materials,  labor
      troubles and other causes beyond Sublessor's reasonable control. Sublessee
      shall  cooperate  with  Sublessor's   restoration  by  removing  from  the
      Subleased Premises, as promptly as reasonably possible, all of Sublessee's
      salvageable  and  movable  equipment,  furniture  and other  property.  If
      Sublessor shall restore the Subleased Premises, Sublessee shall diligently
      repair,  restore and  redecorate  the  Subleased  Premises and re-open for
      business from the Subleased Premises, promptly

007326/13000/180.6
                                      11





      following notice of restoration, in a manner and to the condition existing
      prior to the  occurrence  of such  casualty,  except  to the  extent  that
      Sublessor is obligated to make such repairs as provided above.

                  (c) In the  event  of a  casualty  not  caused  by  Sublessee,
      Sublessee's  agents,   employees,   servants,   invitees  or  contractors,
      Sublessee may, if Sublessor fails to substantially complete restoration of
      the Subleased  Premise  within 5 months of the date of the casualty,  give
      Sublessor  30 days'  notice of intent to  terminate  and,  if  substantial
      restoration  of the Subleased  Premises has not been effected  within such
      30- day period, then this Sublease shall terminate effective 30 days after
      such notice of termination is given to Sublessor.

            17.   Condemnation.

            If  "materially  all" (as such term is  defined in Article 14 of the
Overlease) of the Premises or if any portion of the Subleased Premises such that
Sublessee  shall no longer be able to  operate  its  business  at the  Subleased
Premises  shall be acquired  or  condemned  by eminent  domain for any public or
quasi-public  use or purpose,  then and in such event, the term of this Sublease
shall cease and terminate from the date of title vesting in such proceeding.  If
a portion of the  Subleased  Premises is so acquired or condemned  and Sublessee
shall  notify  Sublessor  within 30 days of having  learned  of such  event that
Sublessee is able to continue to operate its business in the  remaining  portion
of the Subleased Premises, then, this Sublease shall continue as to such portion
and the base rent shall be proportionately  abated.  Sublessee shall be entitled
to any portion of an award made to Sublessee for the value of Sublessee's  trade
fixtures and moving expenses  provided such award does not diminish  Sublessor's
or Overlandlord's  award. As between  Sublessor and Sublessee,  all compensation
awarded for the taking of the Building,  the Premises, the fee and the leasehold
shall belong to and be the property of the Sublessor, and Sublessee shall not be
entitled to any damages for the  unexpired  portion of the term of this Sublease
or injury to its subleasehold interest.

            18.   Notice, etc.

            Any notice,  demand, consent or other communication which, under the
terms of this  Sublease,  must or may be given  or made by the  parties  hereto,
shall be in writing to be  effective  and shall be given or made by mailing  the
same by registered or certified mail, return receipt requested, addressed to the
party for whom  intended  at its  address as set forth on the first page of this
Sublease.  Either party may designate such new or other  addresses to which such
communications  thereafter shall be given, made or mailed by notice given to the
other party in the manner prescribed  herein.  Any such  communication  shall be
deemed given or served,  as the case may be, on the date of the posting thereof.
Notwithstanding  the  foregoing,  Sublessor may deliver any bill to Sublessee by
leaving such bill at the Subleased  Premises and such bill shall be deemed given
on the date of delivery.


007326/13000/180.6
                                      12





            19.   Attornment With Respect to Overlease.

            Sublessee  recognizes and acknowledges that the Sublessor  hereunder
is the tenant under the  Overlease.  The Sublessee  covenants and agrees that if
the  leasehold  estate of the  Sublessor  (as  tenant  under the  Overlease)  is
terminated  or  surrendered  for  any  reason  whatsoever   including,   without
limitation  pursuant  to Article 30, it will  attorn to the  Landlord  under the
Overlease,  upon the request of the Landlord,  or any successor thereto,  as the
case may be, and will recognize such landlord or such successor, as the case may
be, as the  Sublessee's  landlord under this Sublease.  The Sublessee  agrees to
execute and  deliver at any time and from time to time,  upon the request of the
Sublessor or of the landlord  under the Overlease or any successor  thereto,  as
the case may be,  any  instrument  which  may be  necessary  or  appropriate  to
evidence such  attornment.  If the  leasehold  estate of the Sublessor as tenant
under the Overlease is terminated or  surrendered,  the Sublessee  covenants and
agrees upon request of the landlord under the Overlease or any successor thereto
to enter into a lease with such  landlord  under the  Overlease or any successor
thereto on the same terms and conditions as this Sublease, except as hereinafter
set forth. The Sublessee  further waives the provision of any statute or rule of
law now or hereafter  in effect which may give or purport to give the  Sublessee
any right of election to terminate  this Sublease or to surrender  possession of
the  Subleased  Premises in the event of the  termination  or  surrender  of the
Overlease  and  agrees  that  this  Sublease  shall not be  affected  in any way
whatsoever  thereby.  If the Overlease  terminates  for any reason and Sublessee
becomes the direct  tenant of the landlord  under the  Overlease,  such landlord
shall not be (i) liable for any previous act or omission of Sublessor under this
Sublease,  (ii) subject to any credit,  offset, claim,  counterclaim,  demand or
defense which Sublessee may have against Sublessor,  (iii) bound by any previous
modification  of this  Sublease that was not consented to by Landlord or that is
inconsistent  with this  Sublease or the Consent to  Sublease,  among  Landlord,
Sublessor and Sublessee,  dated as of the date hereof (the "Consent"), or by any
previous prepayment of more than one month's rent, (iv) bound by any covenant of
Sublessor to undertake or complete any construction of the Subleased Premises or
any portion  thereof,  (v) required to account for any  security  deposit of the
Sublessee  other than any  security  deposit  actually  delivered to Landlord by
Sublessor,  (vi) bound by any  obligation  to make any payment to  Sublessee  or
grant any credits,  except for services,  repairs,  maintenance  and restoration
provided for under this Sublease to be performed  after the date of  Sublessee's
attornment to Landlord,  (vii)  responsible  for any monies owing by Landlord to
the credit of  Sublessor,  (viii)  required to remove any person  occupying  the
Subleased  Premises or any part thereof,  (ix) required to afford  Sublessee any
cafeteria rights or access rights through the corridor as defined in Paragraph 2
of this Sublease (and such Paragraph  shall be deemed deleted and Landlord shall
have the right to eliminate such  Cafeteria and  corridor),  and (x) required to
provide any parking for  Sublessee's  use,  except for  providing the spaces set
forth in the Consent. Further, if the Overlease is terminated for any reason and
this Sublease  becomes a direct lease  pursuant to the terms of this Sublease or
the  Consent,  this  Sublease  shall be  deemed  modified  from the date of such
termination  as provided  in the  Consent,  which  modifications  shall  include
Landlord's right to terminate the direct lease upon 120 days notice.

007326/13000/180.6
                                      13






            20.   Quiet Enjoyment.

            Sublessor  covenants and agrees with  Sublessee  that upon Sublessee
paying the rent and additional  rent and observing and performing all the terms,
covenants  and  conditions  on  Sublessee's  part to be observed and  performed,
giving regard to any cure periods provided  herein,  Sublessee may peaceably and
quietly enjoy the premises hereby demised, subject,  nevertheless, to the terms,
and conditions of this Sublease.

            21.   Assignment and Subletting.

                  (a) Sublessee  shall not assign this Sublease or sublet all or
      any part of the Subleased Premises or grant any concessions or licenses in
      respect  thereof  or in any  way  encumber  Sublessee's  interest  in this
      Sublease  or  the  Subleased  Premises  without  the  written  consent  of
      Sublessor and Landlord, subject to the provisions of this Par. 21.

                  (b)   Sublessor   covenants   and  agrees  that  it  will  not
      unreasonably  withhold  its  consent  to  Sublessee's  assignment  of this
      Sublease or  subletting  of all or part of the  Subleased  Premises to any
      other person,  firm, or  corporation,  provided such assignee or subtenant
      shall use and  occupy  the  Subleased  Premises  for  offices  and not for
      storage of blood or blood products or medical wastes,  or to collect blood
      from donors, or as a laboratory to process blood or blood products or as a
      "stat" lab for emergency testing of blood.  Notwithstanding the foregoing,
      if such assignment or sublet is proposed to be made to an affiliate of New
      York  Blood  Center,  Inc,  (an  affiliate  being  any  person  or  entity
      controlling,  controlled  by or under  common  control with New York Blood
      Center,  Inc.), such assignee or subtenant may use the Subleased  Premises
      for the uses  described  in Paragraph 6 of this  Sublease.  At the time of
      such  assignment  and/or  sublet,  this Sublease must be in full force and
      effect  without  any  breach  or  default  thereunder  on the  part of the
      Sublessee which is not cured in the applicable time period.  A copy of the
      assignment and the original assumption agreement or sublease (both in form
      and content satisfactory to Sublessor), fully executed and acknowledged by
      the assignee and/or  sublessee shall be delivered to Sublessor  within ten
      (10) days from the date of execution of such  assignment  or sublease.  In
      the event of an  assignment or sublet,  Sublessee  shall remain liable for
      the  performance  of all of the terms,  covenants  and  conditions of this
      Sublease, including the payment of base rent and additional rent. Any such
      sublet or assignment  shall be subject to consent of Landlord,  subject to
      the provisions of the Consent.

                  (c) Notwithstanding anything contained in this Sublease to the
      contrary and notwithstanding any consent by Sublessor to any assignment or
      sublease of the  Subleased  Premises,  no assignee or subtenant who enters
      into such an assignment or sublease, shall further assign this Sublease or
      further  sublet  all or part  of the  Subleased  Premises  or  assign  any
      subsublease of the Subleased Premises

007326/13000/180.6
                                      14





      without the prior  written  consent of Sublessor in each such case,  which
      consent Sublessor in its sole discretion may withhold.

                  (d) Notwithstanding anything to the contrary set forth in this
      Paragraph  21, or  elsewhere  in this  Sublease,  in the  event  Sublessee
      requests  Sublessor's  consent  to a  sublease  of all  of  the  Subleased
      Premises or to an assignment of the Sublease as set forth in  subparagraph
      (b),  then  Sublessor  shall  have the right to cancel and  terminate  the
      Sublease, as of a date chosen by Sublessor, no earlier than two (2) months
      and  no  later  than  four  (4)  months  after  the  date  of  Sublessee's
      notification to Sublessor of Sublessee's request to sublease or assign. If
      Sublessor  exercises  its option to  terminate  this  Sublease,  then this
      Sublease  shall cease and  terminate on the date set forth by Sublessor in
      its notice  without any further  liability  on the part of either party to
      the other,  except for  accrued  obligations  to the date of  termination.
      Sublessor's  right to cancel  shall  not  apply to a request  to sublet or
      assign to an affiliate of  Sublessee,  provided  that the  permitted  uses
      under the Sublease shall remain the same.

                  (e) In the event of an  assignment  of this Sublease or sublet
      of more than 30% of the Subleased Premises consented to by Sublessor,  75%
      of any Net  Profit  for each  calendar  year  shall be paid  quarterly  to
      Sublessor.  "Net  Profit" for any  calendar  year shall mean the amount by
      which "Gross  Receipts"  actually paid to Sublessee in connection with any
      and all  sublettings or assignments  exceed "Gross  Expenses" of Sublessee
      with  respect to the portion of the  Subleased  Premises so sublet (or the
      entire  Subleased  Premises if the Sublease is assigned) for such calendar
      year, such  apportionment to be made on the basis of the percentage of the
      actual  net  usable  square  footage  of the  Subleased  Premises.  "Gross
      Receipts" of  Sublessee  shall mean all rentals and any other sums paid to
      Sublessee  including,  without  limitation  of  the  foregoing,  rent  and
      additional rent, sums paid to acquire the Sublease or subsublease, fixture
      fees,  electricity charges,  "key money", and any other consideration paid
      by any  subtenant  or assignee to Sublessee  during the  calendar  year in
      question.  "Gross  Expenses"  of Sublessee  with respect to the  Subleased
      Premises for any calendar year shall mean all rent,  additional  rent, and
      other sums payable by  Sublessee to Sublessor  under the Sublease for such
      calendar  year and  shall  not  include  any  other  expenditures  paid or
      incurred by  Sublessee  except  customary  brokerage  fees and  reasonable
      attorneys'  fees  actually  paid by  Sublessee  in  connection  with  such
      subletting or assignment.

                        Within thirty (30) days after the end of each quarter of
      each calendar year of the Sublease, Sublessee shall deliver to Sublessor a
      statement  sworn to by an officer  of  Sublessee  setting  forth the Gross
      Receipts and Gross  Expenses for such quarter and the  computation  of the
      Net Profit,  if any, for such  quarter,  together with any payment for any
      Net Profit  which may be due  hereunder.  In the event any such  statement
      intentionally  contains  an untrue  statement  or  intentionally  fails to
      include a complete statement of Gross Receipts,  Sublessee shall be deemed
      to be in

007326/13000/180.6
                                      15





      material  default of this  Sublease  and  Sublessor  shall be  entitled to
      terminate  this  Sublease  in  addition  to  exercising  any other  remedy
      available to it in law or in equity. For the period of two (2) years after
      any statement  required by this Paragraph 21 has been sent by Sublessee to
      Sublessor,  Sublessor  shall have the  opportunity to examine the books of
      Sublessee in order to determine the accuracy of such statements).

                  (f) A form of transfer or  conveyance  that would be deemed an
      assignment or sublease  under the Overlease  shall be deemed an assignment
      or sublet  hereunder  and subject to the terms  hereof.  In addition,  any
      transfer,  by  operation  of law or  otherwise,  of  Sublessee's  (or  any
      subtenant's  or  assignee's)  interest in this  Sublease or the  Subleased
      Premises  (in  whole  or in  part)  or of a 50%  or  greater  interest  in
      Sublessee  (whether stock,  partnership  interest,  or otherwise) shall be
      deemed an  assignment  of this  Sublease  and  subject  to the  provisions
      hereof. It is understood and agreed that if Sublessee is a corporation,  a
      transfer by the corporation or any shareholders)  thereof of a majority of
      the issued or outstanding capital stock of Sublessee, however accomplished
      (including a transfer accomplished by the corporation's issuance of shares
      in an amount greater than 50% of the outstanding shares), and whether in a
      single  transaction  or in a series of related or unrelated  transactions,
      shall be deemed  an  assignment  of this  Sublease  requiring  Sublessor's
      consent.

            22.   [Intentionally Omitted]

            23.   Additional Covenants Required by Overlease.

                  (a) Sublessee  shall remove  reasonably  promptly after notice
      all liens which might affect the landlord under the Overlease's fee estate
      in the  Premises  or any  portion  thereof  as a  result  of any  changes,
      alterations, new construction, renovation, demolition or remodeling of the
      Building or any portion thereof made, or claimed to have been made, at the
      request of Sublessee.

                  (b) The landlord under the Overlease  shall be permitted entry
      to the  Subleased  Premises for the purposes and at the times set forth in
      Article 9 of the Overlease.

                  (c)  Sublessor   shall  remove  or  otherwise   discharge  any
      mechanics  liens placed  against the Premises by reason of a claim against
      Sublessor  in  accordance   with  its  obligations  as  tenant  under  the
      Overlease.

          The  foregoing  Subpar.  (c)  shall not be  deemed  to  eliminate  any
     obligation  of Sublessee to Sublessor  under this  Sublease  (including  by
     reason of the  incorporation  of the terms of the  Overlease) to remove any
     mechanics liens.


007326/13000/180.6
                                      16





            24.   Signs.

            Sublessee may continue to maintain the existing sign on the exterior
of the  Building by the entrance to the  Subleased  Premises and may install one
additional sign on the monument located in front of the Building and one sign on
the  west  wall of the  Building  (in the  southwest  corner).  Sublessor  shall
cooperate with Sublessee and, if necessary,  join in any  application for a sign
permit,  at Sublessee's  expense.  Such signs shall only contain the name of the
Sublessee  (and/or any permitted  assignees or  sub-sublessee).  Sublessee shall
obtain all permits,  certificates and licenses  required for the installation of
each sign installed by Sublessee; shall comply with all present and future laws,
orders and  regulations  of all state,  federal,  municipal,  county,  and local
governments, departments, commissions and boards and any direction of any public
officer  pursuant to law with respect to such  sign(s);  and shall pay all fees,
including  but not  limited to any annual  permit  fees,  required to be paid in
connection with such sign(s).

            25.   Alterations.

                  (a)  Sublessee  shall make no  changes in or to the  Subleased
      Premises  of  any  nature  without  the  prior  consent  of  Landlord  and
      Sublessor.  Sublessee  shall furnish  Sublessor and Landlord with detailed
      plans and specifications  covering all proposed changes.  Sublessor agrees
      not to  unreasonably  withhold  its  consent  to any such  changes  to the
      Subleased  Premises  which  are  non-structural  and  which do not  affect
      utility services or plumbing and electrical lines in or to the interior of
      the Subleased Premises; provided Sublessee complies with the provisions of
      Section  11.1(a)-(h) and 11.3 of Article 11 of the Overlease.  Sublessor's
      consent  shall be  granted or denied  within 5 working  days of receipt of
      such  plans  and  specifications.  Sublessee  shall  use  contractors  and
      mechanics  first approved by Sublessor,  and Sublessor shall grant or deny
      such approval within 3 working days after receipt of Sublessee's  request.
      If any  mechanic's  lien is filed  against the  Subleased  Premises or the
      Building for work claimed to have been done for or materials  furnished to
      Sublessee,  whether or not done pursuant to this Paragraph, the same shall
      be  discharged  by Sublessee  within ten days  thereafter  at  Sublessee's
      expense by filing the bond required by law or otherwise. All improvements,
      alterations  and  additions to the  Subleased  Premises and all  fixtures,
      panelling,  partitions, railings and like installations,  installed in the
      Subleased  Premises at any time,  either by  Sublessee  or by Sublessor on
      Sublessee's  behalf,  shall,  upon  installation,  become the  property of
      Sublessor  and shall  remain upon and be  surrendered  with the  Subleased
      Premises.  Nothing in this Paragraph  shall be construed to give Sublessor
      title to or to prevent  Sublessee's  removal of trade  fixtures,  moveable
      office  furniture  and  equipment,  but upon  removal of any such from the
      Subleased  Premises or upon removal of such other  installations as may be
      required by Sublessor,  Sublessee  shall  immediately  and at its expense,
      repair and restore the Subleased  Premises to the condition existing prior
      to  installation  and repair any damage to the  Subleased  Premises or the
      Building due to such  removal.  All  property  permitted or required to be
      removed by Sublessee

007326/13000/180.6
                                      17





      at  the  end  of the  term  remaining  in  the  Subleased  Premises  after
      Sublessee's  removal shall be deemed abandoned and may, at the election of
      Sublessor,  either be retained as Sublessor's property or removed from the
      Subleased Premises by Sublessor, at Sublessee's expense.

                  (b) Sublessee has built, at Sublessee's sole cost and expense,
      a driveway from the property  owned by Sublessee  adjacent to the Premises
      (the  "Adjacent  Building")  to the  parking  lot on the  Premises  in the
      location  indicated on Exhibit D annexed  hereto.  Sublessee  shall remove
      such driveway and shall restore the Premises to their  original  condition
      existing  prior to the  construction  of such driveway upon the earlier to
      occur of the following:  (a) the  expiration or sooner  termination of the
      term of this Sublease (as such term may be extended or shortened  pursuant
      to the terms of this  Sublease),  or (b) the date  Sublessee  discontinues
      conducting its blood bank operations from the Adjacent Building. Sublessee
      shall be solely  responsible for and shall maintain and keep such driveway
      in good order and repair,  shall be responsible  for snow and ice removal,
      and shall comply with all present and future laws,  orders and regulations
      of  all  state,  federal,   municipal,   county,  and  local  governments,
      departments,  commissions  and  boards  and any  direction  of any  public
      officer  pursuant to law with respect to such driveway and shall discharge
      any violation,  order or duty upon  Sublessor,  Landlord or Sublessee with
      respect to the driveway.

            26.   [Intentionally Omitted]

            27.   Care of the Premises.

            Sublessor shall maintain and repair the exterior of, grounds and the
public  portions of the Building.  Sublessee  shall  throughout the term of this
Sublease take good care of the Subleased  Premises,  including the bathrooms and
lavatory  facilities  and the windows  and window  frames and the  fixtures  and
appurtenances  therein; and shall at Sublessee's sole cost and expenses promptly
make  all  repairs   thereto  and  to  the  Building,   whether   structural  or
non-structural in nature, caused by or resulting from the negligence or improper
conduct of Sublessee,  Sublessee's servants, employees,  invitees, or licensees.
Further,  Sublessee shall, at Sublessee's sole cost and expense, promptly comply
with all present and future laws, orders and regulations of all state,  federal,
municipal  and  local  governments,  departments,  commissions  and  boards  and
direction  of any public  officer  pursuant to law,  and all  orders,  rules and
regulations of the New York Board of Fire Underwriters or the Insurance Services
Office or any similar body which shall impose any order,  violation or duty upon
Sublessor, Landlord or Sublessee with respect to the Subleased Premises, or with
respect to the  Building if arising out of  Sublessee's  use or manner of use of
the  Building;  provided  that nothing  herein shall  require  Sublessee to make
structural  repairs or alterations  unless Sublessee has by its manner of use of
the Subleased  Premises or method of operation  therein  violated any such laws,
ordinances, orders, rules, regulations or requirements with respect thereto.

007326/13000/180.6
                                      18






            28.   Environmental Hazards.

                  (a) Sublessee  shall not store,  use, sell, or bring onto, the
      Premises any Ultra Hazardous Material  (hereinafter  defined) in violation
      of  any  environmental  laws  or  regulations  imposed  by  any  competent
      Governmental   Authority.  As  used  herein,  the  term  "Ultra  Hazardous
      Material"  shall be as defined in 42 U.S.C.  9601 et seq., as amended from
      time to time,  and any hazardous  material or toxic waste the use, sale or
      storage of which may make  Sublessor,  Landlord,  or  Sublessee  liable to
      remove  same  from  the  Premises  in  accordance   with  any   applicable
      environmental  clean-up law. In the event any Ultra Hazardous  Material is
      used, sold or stored by Sublessee on the Premises,  Sublessee shall remove
      same and make the  Premises  clean of same  within  twenty (20) days after
      notice from  Sublessor or if such removal and clean-up  shall require more
      than twenty (20) days,  Sublessee  shall  commence such work within twenty
      (20) days and thereafter  expeditiously and without interruption  complete
      same.  Failure to remove  and/or clean up same within said twenty (20) day
      period (as same may be extended pursuant to the preceding  sentence) shall
      be deemed a default of this Sublease giving Sublessor the same remedies as
      for  nonpayment of Rent. In the event  Sublessee  fails to comply with the
      obligations  of this  Paragraph  28,  Sublessor  shall have the right,  in
      accordance with the provisions of this Sublease,  to remove same and clean
      up the Premises at Sublessee's cost and expense, and Sublessee shall, upon
      demand,  reimburse  Sublessor for such cost, together with interest at the
      Interest  Rate (as such term is defined in Section 2.7 of the  Overlease).
      Sublessee's  obligation to reimburse  Sublessor pursuant to this Paragraph
      28 shall survive the expiration or sooner termination of this Sublease.

                  (b)  A  provision   identical  with  the  provisions  of  this
      Paragraph  28 running for the benefit of Sublessor  and Landlord  shall be
      included in each subsublease by Sublessee, and the failure of Sublessee to
      include such a provision shall be deemed a default of this Sublease.

            29.   Miscellaneous.

                  (a) This Sublease may not be changed or terminated orally, but
      only by an agreement in writing signed by both parties hereto.

                  (b) This Sublease constitutes the entire agreement between the
      parties  hereto with  respect to the subject  matter  hereof and all other
      representations and understandings have been merged herein.

                  (c) The covenants, conditions and terms of this Sublease shall
      bind and inure to the benefit of both parties hereto, their successors and
      permitted assigns.


007326/13000/180.6
                                      19





                  (d) In case  of any  conflict  or  inconsistency  between  the
      provisions  of the Overlease and those of this  Sublease,  the  provisions
      hereof, as between Sublessor and Sublessee, shall control.

                  (e)  This  Sublease  shall be  governed  by and  construed  in
      accordance  with the laws of the State of New York.  If any  provision  of
      this Sublease or the application  thereof to any person or  circumstances,
      shall to any extent be invalid or  unenforceable,  such provision shall be
      adjusted rather than voided,  if possible,  in order to achieve the intent
      of the  parties  to the extent  possible;  and,  in any  event,  all other
      provisions of this Sublease shall be deemed valid and enforceable to their
      full extent.

                  (f)  Whenever  provision  is  made in  this  Sublease  for the
      consent or approval of the Sublessor, the Sublessor shall not capriciously
      or without  reasonable  cause refuse to grant such consent or approval and
      failure to  disapprove  within thirty (30) days after receipt of a written
      request for approval or consent shall be deemed an approval or consent, as
      the case may be. The foregoing  provision  shall not apply to requests for
      the   approval  of   Sublessor   with   respect  to  proposed   structural
      improvements, alterations, additions or repairs.

                  (g) Except as provided in the next sentence,  Sublessee  shall
      not permit any medical  waste to be stored or disposed of at the Subleased
      Premises.  Sublessee  may store  blood in the  Subleased  Premises in cold
      storage  units  occupying  no more than 1000 square feet within the Option
      Area,  provided Sublessee complies with all applicable  governmental laws,
      ordinances, rules and regulations.  Sublessee shall furnish all equipment,
      labor,  utilities and supplies required for the generation,  custody,  and
      disposal of medical  waste at the  Subleased  Premises,  including  boxes,
      labels and manifests and shall promptly remove from the Subleased Premises
      and the Premises all medical wastes  generated at the Subleased  Premises.
      Sublessee shall comply with all applicable  governmental laws, ordinances,
      rules,  regulations  and  orders of any  federal,  state,  county or local
      government,  governmental agency,  department,  board or authority imposed
      with respect to any medical waste generated at the Subleased Premises (the
      "Medical Waste  Regulations") and shall pay any fines,  penalties or other
      charges levied against Sublessee, Landlord, Sublessor, the Building or the
      Premises as a result of Sublessee's failure to handle,  remove,  transport
      or  dispose  of  medical  waste  in  compliance  with  the  Medical  Waste
      Regulations.   Sublessee  shall  initiate,   maintain  and  supervise  all
      appropriate  safety  precautions  and  programs  in  connection  with  the
      custody,  transport and proper disposal of medical wastes;  and shall take
      all  reasonable  precautions  to  prevent  damage,  injury  or loss to any
      persons  or  property  in  connection  with its  generation  of,  custody,
      transport and disposal of medical wastes.  The term "medical wastes" shall
      mean blood,  blood  products,  and any wastes or other substance which may
      cause an  infectious  disease or  reasonably  be  suspected  of  harboring
      pathogenic organisms,  including any wastes described as medical wastes by
      any appropriate federal, state, or local statutory or

007326/13000/180.6
                                      20





      regulatory  authorities.  Sublessee  agrees to indemnify and hold harmless
      Sublessor and Landlord against and from all liabilities,  claims, damages,
      loss, costs and expenses,  including  reasonable  attorneys' fees, arising
      out of any breach by Sublessee of its obligations  under this Subparagraph
      (g).

                  (h) In any action or proceeding for breach of this Sublease or
      for holdover or dispossess  proceedings,  the party which does not prevail
      shall pay the other party's reasonable attorneys' fees.

            Sublessor  shall  provide up to two persons  designated by Sublessee
with keys and security codes to Sublessor's  phone room so that Sublessee  shall
have telephone use after Sublessor's  normal business hours.  Sublessee shall be
responsible  for the  security of the  Building  when using the phone room after
normal business hours. Sublessee shall indemnify,  defend and hold Sublessor and
Landlord harmless from and against all claims,  loss, damages,  cost and expense
Sublessor may incur by reason of such  after-hours  access,  including,  but not
limited  to (a) any loss or  damage  to  property  and (b) any  injury  or death
occurring in or about the Building in connection  with such  after-hours  use of
the phone room.

            30.   Early Termination.

            Sublessee  has been advised that  Sublessor has granted the Landlord
and  Landlord's  affiliate  the right,  upon 180 days prior  notice,  to require
Sublessor to terminate  and/or vacate the Premises,  pursuant to a sublease with
AVR Mart,  Inc. and/or a consent and release  agreement,  dated as of January 1,
1993  (collectively and  individually,  the "Release  Agreement").  In the event
Sublessor  receives  such notice under the Release  Agreement and such notice to
Sublessor  requires by its terms that  Sublessor  give notice to Sublessee  that
Sublessee is required to vacate the Subleased  Premises,  than  Sublessor  shall
give such notice to Sublessee  (accompanied by a copy of the AVR Mart, Inc.'s or
Landlord's  notice to  Sublessor)  and,  upon receipt of such notice,  Sublessee
shall vacate the  Subleased  Premises,  leaving the Subleased  Premises  vacant,
broom clean, with all personal property and trade fixtures removed and otherwise
complying with its obligations under this Sublease (including but not limited to
Art.  25(b)) as of the end of the term of this Sublease or earlier  termination,
upon the earlier of: (a) that date 150 days after a copy of such notice is given
to  Sublessee,  or (b) the end of the term of this  Sublease  (or the end of the
renewal term,  if Sublessee  has exercised its renewal  option prior to the date
such notice is given to Sublessee).  The renewal option  contained in Article 10
of this Sublease shall be deemed void and of no further force and effect if this
Sublease is so terminated prior to exercise of the renewal option.  If Sublessee
fails to timely vacate the Subleased Premises as set forth above,  Sublessor may
be exposed to  substantial  damages,  including  but not limited to liability to
Landlord  for the payment of rent for the  balance of the term of the  Overlease
(as if the Overlease had not been terminated).  Accordingly, Sublessee agrees to
indemnify  and hold  Sublessor  harmless  from and  against  all  claims,  loss,
damages,  liability, and costs Sublessor may incur, including but not limited to
reasonable  attorneys' fees and consequential  damages, by reason of Sublessee's
failure to timely vacate. Such indemnity shall not apply and

007326/13000/180.6
                                      21





Sublessee shall not be liable to Sublessor to the extent Sublessor's damages are
caused by its own  failure  to timely  vacate.  Notwithstanding  the  foregoing,
Sublessee acknowledges that Sublessor shall have the right to negotiate with the
Landlord  under the  Overlease  to shorten the 180 day period for  vacating  the
Premises.  Sublessee  agrees  that  if  Sublessor  and  Landlord  enter  into an
agreement to shorten such period,  the 150 day period provided in this Paragraph
shall be correspondingly shortened on a day for day basis, to the extent that it
is  applicable;  provided  that, in no event shall  Sublessee have less than 120
days after notice to vacate the Subleased Premises. Sublessor shall promptly and
continually  advise  Sublessee  of any  discussions  between  Sublessor  and the
Landlord  regarding  any such proposed  agreement,  provided that the failure of
Sublessor  to do so shall not  invalidate  any  notice  that  complies  with the
foregoing requirements. If Sublessor receives any consideration from Landlord in
connection with such a shortening of the period for vacating including,  without
limitation,   any  payment,  rebate  or  credit,   Sublessor  shall  share  such
consideration  with Sublessee based on Sublessee's  Proportionate  Share. If the
notice to  Sublessor  under  the  Release  Agreement  (described  in the  second
sentence of this  paragraph 30) is given and does not require  Sublessor to give
such notice to Sublessee,  then, upon termination of the Overlease, the Sublease
shall  become a direct  lease  pursuant  to Article 19 of the  Sublease  and the
Consent and subject to  Landlord's  right to  terminate  the lease upon 120 days
notice.

            31.   [Intentionally omitted]

            32.   The Americans With Disabilities Act.

            The Americans with Disabilities Act of 1990, together with the rules
and regulations promulgated  thereunder,  as such law, rules and regulations may
now or  hereafter  be amended or restated,  are  hereinafter  referred to as the
"ADA".  If the Subleased  Premises or any portion thereof are used by Sublessee,
its subtenants,  successors and/or assigns as a "place of public accommodation,"
as such term is defined in the ADA,  Sublessee shall (a) comply with all present
and future  requirements  of the ADA as they relate to the  Subleased  Premises,
whether or not such compliance requires structural or non-structural alterations
to be made;  and (b) reimburse  Sublessor  for all costs  Sublessor may incur to
bring the common  areas of the  Premises  into  compliance  with all present and
future  requirements  of the ADA; and (c) indemnify and hold harmless  Sublessor
from and against all claims,  actions,  costs,  damages,  penalties,  losses and
liabilities Sublessor may incur by reason of any action or proceeding instituted
against  Sublessor  and/or  Sublessee by reason of the use of all or part of the
Subleased Premises as a place of public accommodation. If, at the time any claim
or demand is made by Sublessor upon Sublessee under this Paragraph,  other space
in the  Building  is also  used as a place of  public  accommodation,  Sublessee
shall,  with respect to its liability under clause (b), be responsible  only for
its share of such costs.  Such share shall equal a fraction,  the  numerator  of
which is the leasable  area of the  Subleased  Premises and the  denominator  of
which is the sum of the  leasable  areas of the  Subleased  Premises  and of the
other space used as a place of public accommodation.  All changes,  alterations,
additions, improvements, and repairs made by Sublessee to the Subleased Premises
shall be performed in compliance with all applicable requirements of the ADA.

007326/13000/180.6
                                      22






            33.   Counterparts.

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

            IN WITNESS  WHEREOF,  the parties have  executed this Sublease as of
the day and year first above written.


                             VICON INDUSTRIES, INC.


                                    By:_________________________________


                           NEW YORK BLOOD CENTER, INC.


                                    By:_________________________________



007326/13000/180.6
                                      23





                                   EXHIBIT A

                         Diagram of Subleased Premises




007326/13000/180.6
                                      24





                                   EXHIBIT B

                       Diagram of Corridor to Cafeteria




007326/13000/180.6
                                      25





                                   EXHIBIT C

                       Overlease (Including Amendments)




007326/13000/180.6
                                      26




                                   EXHIBIT D

                      Driveway Construction by Sublessee

007326/13000/180.6
                                      27