CONTENTS 



Report of the Commissioner of Fisheries for the fiscal tear ended June 30, 

 1921. By Hueh M. Smith. 50 pp. ^Document No. 900. Issued December 14, 

 1921.) 



Pacific salmon fisheries. Tliiid edition. By John N. Cobb. Appendix 1. 268 

 pp., 48 figs. (Document No. 902, Issued May 24, 1921.) 



Improvements ik process of salting river herring, especially adapted to 

 WARM ruMATES. By Harden F. Taylor. .Vppendix II. 7 pp. (Document No. 

 903. Issued May 7, 1921.) 



Fishes of the Yellow.stone National Park. With description ok the Park 

 WATERS and notes ON FISHING. By Ilugh M. Smith and William ('. Kendall. 

 Appendix III. 30 pp., 16 figs. (Document .\o. 904. Issued December 31 . 1921 .) 



Food of young winter flounders, liy Edwin Linton, .\ppondix 1\'. 14 pp. 

 (Document No. 907. Issued July 23. J92I. i 



Fishery industries of the United States. IIepokt ok the division ok statis- 

 tics AND METHODS OF THE FisHKUiKs Kou 1920. By Lewis Kadclilfo. .\pi)endix 

 V, 187 pp., 8 fios. (Document No. 908. Issued October 4, 1921.) 



Alaska fishery and fur-seal industries in 1920. By Ward T. Bower. .Vppen- 

 dix VI. 154 pp., 3 figs. (Document No. 909. Issued December 12, 1921.) 



Danger to fisheries from oil .\nd tah pollution of w.^tkrs. By J. S. Outsell. 

 Appendix VII, 10 pp. (Document No. 910. Issued Ortober 3, 1921.) 



Progress in biological inquiriks. 1921. Iikport of thk division of scientific 

 INQUIRY for the flscal ykak 1921. |{y It. E. (oker. .\ppendix VIJT, 38 pp., 

 2 figs. (Document No. 911. Issued January 26, 1922. j 



Propagation and distribution of food fishes, 1921. Report of the division 

 of fish culture for the fiscal year 1921. By Glen C. Leach. Appendix 

 IX, 94 pp., 5 figs. (Document No. 912. Issued September 28, 1922.) 



Ill 



I n H i-u 



