Abstract
Biochemistry of Cell Differentiation, Volume 24, Seventh FEBS Meeting. Edited by A. Monroy and R. Tsanev. (London, New York: Academic Press, 1973.) [Pp. 179+12.] £4·00.
Pesticides in the Environment, Volume 1, Part 1. Edited by Robert White-Stevens. (New York : Marcel Dekker Inc., 1971.) [Pp. 270.] $25·50.