THE CRYSTALLOGRAPHIC SYSTEM SIR92
                     LICENCE AGREEMENT

 This AGREEMENT is made between:  

     Istituto di Ricerca per lo Sviluppo di Metodologie Cristallografiche,
     CNR, Bari, Italy

 representative also of

     Dipartimento di Scienze della Terra, Universita' di Perugia, 
     Ist. di Strutturistica Chimica "G. Giacomello", CNR, Roma  
                                       (ISMEC from now on) 

 and 





                                       ('The INSTITUTION') 


 We the undersigned as agents of the above named INSTITUTION agree 
 to the following licencing conditions.   

 1.  The crystallographic program system 'SIR92' will be supplied to the INSTITUTION on
     media provided by ISMEC or an authorized distributor at the INSTITUTION expense, the
     INSTITUTION paying all postage and costs incidental to the carriage of the media.
     'SIR92' is free of charge to academics for non-commercial use only, subject to the condition
     that it is acknowledged in all publications which report structures solved with it.

 2.  'SIR92' will normally be distributed on 1.4 Mb or via E-Mail. 

 3.  Any modifications to 'SIR92' supplied by or an behalf of ISMEC will be covered by the
     terms of this AGREEMENT.

 4.  ISMEC and the authors of 'SIR92' accept no responsability for any limitations of the
     program and documentation or for any liabilities or claims arising from its use.

 5.  ISMEC is under no obligation whatsoever to correct errors nor to notify the
     INSTITUTION of errors in 'SIR92'.  Whenever practicable such errors will be corrected
     or the INSTITUTION notified.

 6.  The INSTITUTION may on his own initiative make modifications to 'SIR92' subject to the
     following conditions:
      The INSTITUTION will notify ISMEC of the modifications as practicable.
      The INSTITUTION will provide ISMEC with full details of the modifications if requested
     to.
      All intellectual property in the modification will rest in ISMEC who will have the right
     to distribute it to other institutions under the same terms as 'SIR92'. 
      ISMEC will clearly show in the distribution of such modifications the authorship of the
     modification.

 7.  The program system 'SIR92' will not be distributed to any third party without written
     permission of ISMEC.

 8.  The user guide may be copied and distributed to members of the INSTITUTION.    

 9.  Published references to 'SIR92' will be:   

  A. Altomare, M. C. Burla, M. Camalli, G. Cascarano, C. Giacovazzo, A. Guagliardi,G. Polidori,
  (1994). J. Appl. Cryst., in preparation.

10.       This Agreement shall be governed by Italian law.   


                     Agent for ISMECAgent for the INSTITUTION  

  Signed    
  (position)    
  (date)