EXHIBIT 10.13

                            NINTH AMENDMENT OF LEASE

     THIS NINTH AMENDMENT OF LEASE ("Ninth  Amendment") is made on July 25, 2001
between  TRIZECHAHN  CENTERS INC., a California  corporation,  d/b/a "TrizecHahn
Newmarket  1 to 8",  f/k/a  FASHION  PLACE  ASSOCIATES,  LTD.,  a  Utah  limited
partnership, d/b/a "TrizecHahn Newmarket 1 to 8 Management" ("Landlord"),  whose
address is 100 Colony Square,  Suite 600, 1175 Peachtree Street,  N.E., Atlanta,
GA 30361 and CRYOLIFE, INC., a Florida corporation ("Tenant").

                                    RECITALS

     This Ninth Amendment is based upon the following recitals:

     A.  Newmarket   Partners  III,  Laing  Properties,   Inc.  General  Partner
("Newmarket  III"),  as landlord and Tenant  entered into a Lease dated February
13, 1986  ("Lease"),  for the premises known as Suites  134-144  located at 2211
Newmarket Parkway, Marietta, GA 30067 ("Premises").

     B.  Newmarket III and Tenant  amended the Lease by Amendment to Lease dated
April 7, 1986;  Amendment to Lease dated May 15, 1987; Second Amendment to Lease
dated June 22,  1988;  Third  Amendment  to Lease  dated  April 4, 1989;  Fourth
Amendment to Lease dated April 2, 1990;  Fifth  Amendment to Lease dated October
15, 1990;  Sixth Amendment to Lease dated March 14, 1995;  Seventh  Amendment to
Lease dated May 15, 1996 and Eighth  Amendment to Lease dated  November 18, 1998
(Lease and Amendment(s) collectively, "Lease as amended").

     C.  Landlord  is  successor  in  interest to  Newmarket  III's  interest as
landlord under the Lease as amended.

     D.  Landlord  and Tenant  desire to  further  amend the Lease as amended to
extend the term and otherwise amend the Lease as amended accordingly.

     THEREFORE , in consideration of the mutual covenants and agreements  stated
in the  Lease as  amended  and  below,  and for other  sufficient  consideration
received and acknowledged by each party,  Landlord and Tenant agree to amend the
Lease as amended as follows:

     1. RECITALS. All recitals are fully incorporated.

     2. ADDRESS - NOTICES.  Landlord's address for notices as set forth in Lease
as amended shall be deleted and the following substituted therefore:

          TRIZECHAHN CENTERS INC
          c/o TrizecHahn Office Properties Inc.
          100 Colony Square, Suite 600
          1175 Peachtree Street, N.E.
          Atlanta, GA 30361
          Attention: David D. Canaday, Vice President


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          with a copy to:

          TRIZECHAHN CENTERS, INC.
          c/o TrizecHahn Office Properties Inc.
          100 Colony Square
          Suite 600
          1175 Peachtree Street, N.E.
          Atlanta, GA 30361
          Attention: Lease Administrator

          and if notice of default, a copy to:

          TRIZECHAHN CENTERS INC.
          c/o TrizecHahn Office Properties Inc.
          100 Colony Square
          Suite 600
          1175 Peachtree Street, N.E.
          Atlanta, Georgia 30361
          Attention: Regional Counsel


     3.  EXTENSION  OF LEASE  TERM.  The Lease  Term for the  Premises  shall be
extended  for a twelve  (12)-month  period only,  to begin  December 1, 2001 and
expire on November 30, 2002 ("5th Extension Term").

     4. RENTAL, COMMON AREA MAINTENANCE  EXPENSES,  TAX AND INSURANCE ESCALATION
EXPENSES.  Effective during the 5th Extension Term,  Tenant's  obligation to pay
Rental,  Common  Area  Maintenance  Expenses  and Tax and  Insurance  Escalation
Expenses shall be as follows with respect to the Premises:

          A. RENTAL.  Effective during the 5th Extension Term,  Tenant shall pay
Landlord  monthly  rental in  advance  on the  first day of each  month in equal
monthly installments of $16,089.94; and

          B. COMMON AREA MAINTENANCE  EXPENSES.  Tenant shall reimburse Landlord
for the cost of Common Area Maintenance Expenses (as described in Paragraph 4 of
the Lease, "CAM") which shall be $0.80 per rentable square foot and subject to a
4% annual increase each calendar year; and

          C. TAX AND INSURANCE  ESCALATIONS  EXPENSES. In addition to Rental and
CAM,  Tenant shall continue to be responsible  for tax and insurance  escalation
expenses with respect to the entire  Premises in  accordance  with the terms and
conditions of Paragraph 13 of the Lease; however, and the base year with respect
to  determining  tax and insurance  escalation  expenses for the Premises  shall
remain the calendar year ending December 31, 2002.

     5. DELIVERY OF AND IMPROVEMENTS TO THE PREMISES. Landlord shall provide and
Tenant  shall accept the  Premises in "as-is"  condition.  No promises to alter,
remodel or improve the  Premises or Building and no  representations  concerning
the  condition of the Premises or Building  have been made by Landlord to Tenant


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other than as may be expressly stated in the Lease as amended.

     6.  HOLDOVER.  Tenant  understands  that it does not have the right to hold
over at any time and  Landlord  may  exercise  any and all remedies at law or in
equity to recover possession of the Premises, as well as any damages incurred by
Landlord,  due to Tenant's failure to vacate the Premises and deliver possession
to Landlord as required by this Lease. If Tenant holds over after the expiration
of the 5th Extension Term with Landlord's prior written consent,  Tenant will be
deemed to be a tenant  from  month to month,  at a monthly  Rental,  payable  in
advance,  equal to 150% of the monthly  Rental  payable during the 5th Extension
Term,  and  Tenant  will be  bound  by all of the  other  terms,  covenants  and
agreements  of the Lease as  amended  as the same may apply to a  month-to-month
tenancy.  If Tenant holds over after the  expiration of the 5th  Extension  Term
without  Landlord's  prior  written  consent,  Tenant will be deemed a tenant at
sufferance,  at a daily Rental,  payable in advance, equal to 200% of the Rental
per day payable  during the 5th Extension  Term, and Tenant will be bound by all
of the other terms, covenants and agreements of the Lease as amended as the same
may apply to a tenancy at sufferance.

     7.  BROKERS.  Landlord and Tenant  represent  and warrant that no broker or
agent negotiated or was  instrumental in negotiating or consummating  this Ninth
Amendment  except  TrizecHahn  Colony Square GP LLC and Richard Bowers & Company
("Brokers"). Neither party knows of any other real estate broker or agent who is
or might be entitled to a commission or  compensation  in  connection  with this
Ninth  Amendment.   Pursuant  to  Georgia  Real  Estate  Commission   Regulation
520-1-108,  TrizecHahn  Colony  Square GP LLC  hereby  discloses  the  following
concerning  this  lease  transaction:   (1)  TrizecHahn  Colony  Square  GP  LLC
represents  Landlord  and not Tenant;  (2) Richard  Bowers & Company  represents
Tenant  and not  Landlord;  and (3) both  TrizecHahn  Colony  Square  GP LLC and
Richard Bowers & Company shall receive their compensation from Landlord.  Tenant
and Landlord will  indemnify and hold each other  harmless from all damages paid
or incurred by the other resulting from any claims asserted against either party
by brokers or agents claiming through the other party.

     8.  CONFLICTING  PROVISIONS.  If any  provisions  of this  Ninth  Amendment
conflict with any of those of the Lease as amended,  then the provisions of this
Ninth Amendment shall govern.

     9. REMAINING LEASE  PROVISIONS.  Except as stated in this Ninth  Amendment,
all other viable and applicable  provisions of the Lease as amended shall remain
unchanged and continue in full force and effect throughout the Lease Term.

     10.  BINDING  EFFECT.  Landlord and Tenant  ratify and confirm the Lease as
amended and agree that this Ninth  Amendment shall bind and inure to the benefit
of the parties, and their respective successors,  assigns and representatives as
of the date first stated.

                  -- signatures appear on the following page--

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     AFFIRMING  THE ABOVE,  the parties have  executed  this Ninth  Amendment of
Lease on the date first stated.

WITNESSES                             LANDLORD TRIZECHAHN CENTERS, INC.,
                                      a California corporation


                                      BY:  /s/
- -----------------------------              -------------------------------------
                                           Robert R. Stubbs
                                           Assistant Secretar



                                       BY: /s/
- -----------------------------              -------------------------------------
                                           Paul H. Layne
                                           Vice President


                                       TENANT
                                       CRYOLIFE, INC., a Florida Corporation


                                       BY:  /s/ Albert E. Heacox
- -----------------------------               ------------------------------------
                                       ITS: V.P., Laboratory Operation
                                            ------------------------------------



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