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CONTENTS 
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Page 
Preliminary report on the life history of the common shrimp, Penaeus setiferus 
(Linn.). By F. W. Weymouth, Milton J. Lindner and W. W. Anderson. (Bulletin 
No. 14, issued Sept. 29, 1933.) 1-26 
The homing instinct and age at maturity of pink salmon ( Oncorhynchus gorbuscha) . 
By Frederick A. Davidson. (Bulletin No. 15, issued Aug. 26, 1934.) 27-39 
Reproduction and development of whitings or kingfishes, drums, spot, croaker, 
and weakfisheb or sea trouts, family sciaenidae, of the Atlantic coast of the 
United States. By Samuel F. Hildebrand and Louella E. Cable. (Bulletin No. 16, 
issued Sept. 19, 1934.) 41-117 
Races of herring, Clupea pallasii, in Southeastern Alaska. By George A. Rounsefell 
and Edwin H. Dahlgren. (Bulletin No. 17, issued May 23, 1935.) 119-141 
Effects of crude oil pollution on oysters in Louisiana waters. By Paul S. Galtsoff, 
Herbert F. Prytherch, Robert O. Smith, and Vera Koehring. (Bulletin No. 18, 
issued Nov. 29, 1935.) 143-210 
Age and growth of the cisco, Leucichthys artedi, (Le Sueur), in the lakes of the 
northeastern highlands, Wisconsin. By Ralph Hile. (Bulletin No. 19, issued 
Feb. 27, 1936.) 211-317 
Supplemental notes on the fishes of the Gulf of Maine. By Henry B. Bigelow and 
William C. Schroeder. (Bulletin No. 20, issued Nov. 17, 1936.) 319-343 
Adaptation of the feeding mechanism of the oyster, Ostrea gigas, to changes in 
salinity. By A. E. Hopkins. (Bulletin No. 21, issued Dee. 15, 1936.) 345-364 
Detection and measurement of stream pollution. By M. M. Ellis. (Bulletin No. 22, 
issued Apr. 7, 1937.) 365-437 
Experimental observations on spawning, larval development, and setting in the 
Olympia oyster, Ostrea lurida. By A. E. Hopkins. (Bulletin No. 23, issued Oct. 19, 
1937.) 439-503 
Further notes on the development and life history of some teleosts at Beaufort, 
N. C. By Samuel F. Hildebrand and Louella E. Cable. (Bulletin No. 24, issued 
Mar. 15, 1938.) ■- 505-642 
The migrations of pink salmon ( Oncorhynchus gorbuscha) in the Clarence and Sumner 
Straits regions of Southeastern Alaska. By Frederick A. Davidson and Leroy 
S. Christey. (Bulletin No. 25, issued May 17, 1938.) 643-666 
The geographic distribution and environmental limitations of the Pacific salmon 
(genus Oncorhynchus) . By Frederick A. Davidson and Samuel J. Hutchinson. (Bul- 
letin No. 26, issued June 11, 1938.) 667-692 
The salmon and salmon fisheries of Swiftsure Bank, Puget Sound, and the Fraser 
River. By George A. Rounsefell and George B. Kelez. (Bulletin No. 27, issued 
Oct. 17, 1938.) 693-823 
The life history of the striped bass, or rockfish, Roccus saxatilis (Walbaum). By 
John C. Pearson. (Bulletin No. 28, issued Oct. 26, 1938.) 825-851 
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