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\input lett.tex  
    \def\TEX{\hbox{T\hskip-.125em\lower.5ex\hbox{E}\hskip-.075em X}}
\magnify{1100}
\date {January 29}
\stanford  
\to {Roy Mendelssohn\cr
Pacific Environmental Group\cr
United States Department of Commerce\cr
P.O. Box 831\cr
Monterey, calif. 93942\cr}
{\noindent Dear Mr. Mendelssohn:}

This is in answer to your letter of January 27th 1982 to Professor Knuth.

The \TEX\ program is currently being used, or considered for use, by
roughly 400 different institutions on 50 or more different types of
computers under some 70 different operating systems with 60 different
types of output devices.  This includes only those locations of which we
have some specific knowledge.  The \TEX\ system has been placed in the
public domain and distributed widely with permission given to the users to
circulate it to others.

Most of the present applications of \TEX\ are for English texts and
particularly for texts with a large mathematical content, but there is
active work underway to adapt \TEX\ for use with French, German, Spanish,
Finnish and Chinese texts, to name but a few of the other languages.  One
of the more active users of \TEX\ is The American Mathematical Society which is
planning to go to the use of \TEX\ for all of its publications.

If you would like more detailed information, the \TEX\ Users
Group, known as TUG, publishes a quarterly Newsletter, available to
members of TUG.  To become a member, application must be made to the \TEX\
Users Group, c/o American Mathematical Society, P.O. Box 1571, Annex
Station, Providence, RI 02901 accompanied by payment for the first years
dues of \$15.

\sign {\hfill Sincerely yours,\cr\ssqip\cr
\hfill Arthur L. Samuel}

c/c DEK

\fin			 % C'est tout.
\end