Did you look for the book mentioned in the Snack, Seeing the Light, by 
David Falk, Dieter Brill, and David Stork (Harper & Row, 1986)?  You might 
try your local library.  The librarian could help you find other books on 
the subject.  Did you try a web search?  Here's a site that you might 
find of interest:
http://faculty.washington.edu/chudler/benham.html
Nina Thayer
Snacktalk Moderator
> 
>Hey! I need help with my project (Benaham's Disk). All I need is some websites that can supply information for my project (some info on Benham himself would be nice too.) You can email any information to <A href="mailto:JuliaID@hotmail.com">JuliaID@hotmail.com</A> or <A href="mailto:AMSCheerleader@hotmail.com">AMSCheerleader@hotmail.com</A> (it will probably be easier to answer on the first one.) 
> Thank you,
 Julia Incerpi Diaz
> 
This archive was generated by hypermail 2.1.3 : Mon Apr 24 2006 - 11:34:49 PDT