Sylvia:

  Try contacting Mike Horn at the following address:

 Horn, Mike                       [log in to unmask]

cheers


Jay A. Nelson, Ph.D.
Dept. of Biological Sciences, Towson State University
Towson, Md. 21204-7097 USA
E-mail: [log in to unmask] or [log in to unmask]
"http://midget.towson.edu/~nelson/Welcome.html"
fax: 410 830-2405

"There is something fascinating about science. One gets
 such wholesome returns of conjecture out of such a
 trifling investment of fact"
                                 Mark Twain