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\hspace{3.5in} Dr. Rong-Sheng Zhou\\
\hspace{3.5in} 41 Hayes Street\\
\hspace{3.5in} Framingham, MA 01701 \\
\hspace{3.5in} May 30, 1990 \\
\vspace*{0.15in}
Dr. E. Prince\\
Co-editor of J. of Appl. Cryst.\\
Reactor Radiation Division\\
National Institute of Standards and Technology\\
Gaithersburg, MD 20890\\
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Dear Dr. Prince:\\\\
I am sending you a Vax/VMS V5.0-2 backup tape (saveset: GRAFIT)
containing program C3DCON (submitted manuscript \#PN091) as 
requested for referee testing. C3DCON is currently configured 
into a larger computer graphics package called GRAFIT. To run 
C3DCON, install GRAFIT according to the enclosed installation 
note and then select C3DCON item from GRAFIT'S main function menu. 
The tape also contains a set of test files ready for C3DCON and
they are located in [GRAFIT.TEST]. \\\\
Good Luck.
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\hspace{3.5in} Sincerely yours,\\
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\hspace{3.5in} Rong-Sheng Zhou\\
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