Series 



*Doc 939, Trade in fresh and frozen fishery- 

 products and related marketing considera- 

 tions in Boston, Mass., by L. T. Hopkinson, 

 1923. 27 p.. iUus. Appendix 16 to the Report 

 of the U. S. Commissioner of Fisheries for 

 1922. 



*Doc 940. Annotated list of fishes collected in 



vicinity of Augusta, Georgia, with descrip- 

 tion of a new darter, by Samuel F. Hilde- 

 brand. 1923. 1-8 p., illus. From Bulletin 

 of the Bureau of Fisheries, v.39, 1923-24. 



*Doc 941. Propagation and distribution of food 

 fishes, 1922; report of the Division of Fish 

 Culture for the fiscal year 1922, by Glen 

 C. Leach. 1923. 116 p., Ulus. Appendix 17 to 

 the Report of the U. S. Commissioner of 

 Fisheries for 1922. 



*Doc 942. Life history of the scavenger water 

 beetle Hydrous ( Hydrophilus ) triangularis . 

 and its economic relation to fish breeding, 

 by Charles Branch Wilson. 1923. 9-38 p., 

 illus. From Bulletin of the Bureau of 

 Fisheries, v.39, 1923-24. 



*Doc 943 . Experiment in tagging adult red 



salmon, Alaska peninsula fisheries reser- 

 vation, summer of 1922, by Charles H. 

 Gilbert. 1923. 39-50 p., illus. From Bul- 

 letin of the Bureau of Fisheries, v.39. 

 1923-24. 



*Doc 944. Northwestern lakes of the United 



States; biological and chemical studies with 

 reference to possibilities in production of 

 fish, by George Kemmerer, J. F. Bovard, 

 and W. R. Boorman. 1923. 51-140 p., illus. 

 From Bulletin of the Bureau of Fisheries, 

 v.39, 1923-24. 



*Doc 945. Contributions to life histories of 

 Sciaenidae of the eastern United States 

 coast, by William W. Welsh and C. M. 

 Breder, Jr. 1923. 141-201 p.. illus. From 

 Bulletin of the Bureau of Fisheries, v.39. 

 1923-24. 



*Doc 946. Annual report of the Commissioner 



of Fisheries to the Secretary of Commerce 

 for the fiscal year ended June 30. 1923. 

 1923. 47 p. 



*Doc 947. Properties and values of certain fish- 

 net preservatives, by Harden F. Taylor and 

 Arthur W. Wells. 1923. 69 p., illus. Appen- 

 dix 1 to the Report of the U. S. Commission- 

 er of Fisheries for 1923. 



*Doc 948. Aquatic plants in pond culture, by 



John W. Titcomb. 1923. 24 p., Ulus. Appen- 

 dix 2 to the Report of the U. S. Commis- 

 sioner of Fisheries for 1923. 



*Doc 949. Artificial propagation of whitefish, 



grayling, and lake trout, by Glen C. Leach. 

 1923. 32 p.. illus. Appendix 3 to the Report 

 of the U. S. Commissioner of Fisheries for 

 1923. 



*Doc 950. Significance of larval mantle of fresh- 

 water mussels during parasitism, with 

 notes on a new mantle condition exhibited 

 by LampsUis luteola , by Chester N. Bly- 

 stad. 1923. 203-219 p., illus. From Bul- 

 letin of the Bureau of Fisheries, v.39, 

 1923-24. 



*Doc 951. Alaska fishery and fur-seal indus- 

 tries in 1922, by Ward T. Bower. 1923. 

 118 p., illus. Appendix 4 to the Report of 

 the U. S. Conamissioner of Fisheries for 

 1923. 



*Doc 952. Toxicities of coal tar creosote, 



creosote distillates, and individual constit- 

 uents for the marine wood borer. Limnoria 

 lignorum . by L. F. Shackell. 1923. 221- 

 230 p. From Bulletin of the Bureau of 

 Fisheries, v.39. 1923-24. 



*Doc 953. Water beetles in relation to pondfish 

 culture, with life histories of those found 

 in fishponds at Fairport, Iowa, by Charles 

 Branch WUson. 1923. 231-345 p., illus. 

 From Bulletin of the Bureau of Fisheries, 

 v.39, 1923-24. 



*Doc 954. Fishery industries of the United 



States; report of the Division of Fishery 

 Industries for 1922, by Harden F. Taylor. 

 1923. Ill p.. illus. Appendix 5 to the Report 

 of the U. S. Commissioner of Fisheries 

 for 1923. 



*Doc 955. Artificial propagation of brook trout 

 and rainbow trout, with notes on three 

 other species, by Glen C. Leach. 1923. 

 74 p., illus. Appendix 6 to the Report of 

 the U. S. Commissioner of Fisheries for 



1923. Rev. July 15, 1939. 



*Doc 956. Progress in biological inquiries. 



1923; report of the Division of Scientific 

 Inquiry for the fiscal year 1923, by Willis 

 H. Rich. 1924. 27 p. Appendix 7 to the Re- 

 port of the U. S. Commissioner of Fish- 

 eries for 1923. 



*Doc 957. A new myxosporidian parasite, the 

 cause of "wormy" halibut, by H. S. Davis. 



1924. 5 p., illus. Appendix 8 to the Report 

 of the U. S. Commissioner of Fisheries 

 for 1923. 



*Doc 958. Limnological observations in the 



upper Mississippi, 1921, by P. S. Galtsoff. 

 1924. 347-438 p., illus. From Bulletin of 

 the Bureau of Fisheries, v.39, 1923-24. 



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