STEINBECK, JOHN and EDWARD F. RICKETTS. Sea of Cortez. New York: Viking Press, 1941. Thick 8vo, original green cloth (corners a little rubbed) dust jacket. FIRST EDITION, 40 plates of photographs, PRESENTATION COPY, inscribed by Ricketts at time of publication on verso of front free endpaper: "Dec. 9-1941. To Dr. Hoyt, who, as family physician to both of us, will be interested in our joint product. The Authors. E.F. Ricketts." Goldstone & Payne A15b. This collaboration between Steinbeck and his close friend Ed Ricketts is the result of their visit to the Gulf of California on the "Western Flyer," a 76-foot purse seiner, to collect marine invertebrates in March and April 1940.