Two useful books that are printed by CRC are: Handbook of Radiobiology, 2nd ed. Kedar N. Prasad, CRC Press, c. 1995, ISBN 0-8493-2501-3 and Basic Biophysics for Biology, Edward K. Yeargers, Georgia Institute of Technology, c. 1992, ISBN 0-8493-4424-7 Larry Dauer 914-736-8413 idauerl@ip3gate.usa.com