There have been several inquiries about programs to visualize molecules.
I pulled up one called "CHEMICAL" from one of the SIMTEL bboards.
The author is listed as Larry Puhl, 6 Plum Court,
Sleepy Hollow, Ill. 60118.
It has some nice features but critical limitations.
The version I have is 2.00 datad Oct 3, 1987. The author has asked
for $ 20.000 for the latest version and some files that
would appear to enhance performance. Before I send $ 20.00 to this
unknown address, does anyone know if there is a later version
and whether the author is still in business.