CONTENTS 



J* 



Page 



Investigations concerning the red-salmon runs to the Karluk River, Alaska. 



By Charles H. Gilbert and Willis H. Rich. (Document No. 1021, issued July 27, 



1927) 1-69 



Salmon-tagging experiments in Alaska, 1926. By Willis H. Rich and Arnie J. Suomela. 



(Document No. 1022, issued July 27, 1927) 71-104 



Annotated list of fishes collected in the vicinity of Greenwood, Miss., with 



descriptions of three new species. By Samuel F. Hildebrand and Irving L. 



Towers. (Document No. 1027, issued February 2, 1928) 105-136 



Biological survey of the upper Mississippi River with special reference to pol- 

 lution. By A. H. Wiebe. (Document No. 1028, issued February 16, 1928) 137-167 



Quantitative study of the changes produced by acclimatization in the tolerance 



of high temperatures by fishes and amphibians. By Edward S. Hathaway. 



(Document No. 1030, issued March 7, 1928) 169-192 



Nature and extent of fouling of ships' bottoms. By J. Paul Visscher. (Document 



No. 1031, issued April 13, 1928) 193-252 



Production and distribution of cod eggs in Massachusetts Bay in 1924 and 1925. 



By Charles J. Fish. (Document No. 1032, issued February 25, 1928) 253-296 



Coregonid fishes of the Great Lakes. By Walter Koelz. (Document No. 1048, 



issued April 9, 1929) 297-643 



General index 645-658 



in 



