The LZW encode routine used when writing out GIF images in the
DATASERV toolbox is copyright E. I. du Pont de Nemours & Company.
John Cristy is the author This copyright and licence follow:

Copyright 1994 E. I. du Pont de Nemours & Company

Permission to use, copy, modify, distribute, and sell this software
and its documentation for any purpose is hereby granted without fee,
provided that the above Copyright notice appear in all copies and that
both that Copyright notice and this permission notice appear in
supporting documentation, and that the name of E. I. du Pont de
Nemours & Company not be used in advertising or publicity pertaining
to distribution of the software without specific, written prior
permission.  E. I. du Pont de Nemours & Company makes no
representations about the suitability of this software for any
purpose.  It is provided "as is" without express or implied warranty.

E. I. du Pont de Nemours & Company disclaims all warranties with
regard to this software, including all implied warranties of
merchantability and fitness, in no event shall E. I. du Pont de
Nemours & Company be liable for any special, indirect or consequential
damages or any damages whatsoever resulting from loss of use, data or
profits, whether in an action of contract, negligence or other
tortuous action, arising out of or in connection with the use or
performance of this software.
