THIS book is an attempt to place in the hands of anglers, sportsmen, and aquatic biologists, trustworthy information relating to trout and streams in which they live.
Conditions that Determine their Productivity and Suggestions for Stream and Lake Management. By Dr. Paul R. Needham. Pp. x + 233. (Ithaca, N.Y.: Comstock Publishing Co., Inc., 1938.) 3 dollars.