A handbook to the rocky shores and tide pools of the Pacific Coast of the United States, first published in 1939 and now in its fifth edition. After 50 years this standard reference still reflects Ed Ricketts' considerable personality and enthusiasm for tidepooling and marine biology. Each intertidal zone is discussed in depth, augmented by black-and-white photographs and diagrams. Much revised, this edition includes the original forward by John Steinbeck and a tribute to Ed Ricketts.  (FG34, $31.95)