wrt May 2, 1995 info on prions/viroids from Ted Diener: Thanks for the info. As it happens, I recently obtained Volumes 5 & 6 of "The Viruses" as used books from Atticus Books in Amherst, Mass. Both volumes were very informative and I will try to ge a hold of Volume 1, for the articles on viroids, as well. Thanks again, Andesite