In article <D5vtH4.MIx at umassd.edu> s14840mz at umassd.edu writes: > plant extracts and retroviruses I'm not sure that this is the book in question however it may be of some help/interest. "Antiviral proteins in higher plants". Eds. Meyer Chessin, Dan DeBorde, and A. Zipf. Published by CRC Press, 1995. Michael