CONTENTS. 



Report of the Commissioner of Fisheries for the fiscal year ended 

 June 30, 1923. By Henry O'Malley. 47 pp. (Document No. 946. 

 Issued December 13, 1923.) 



Properties and values of certain fish-net preservatives. By Harden F. 

 Taylor and Arthur W. Wells. Appendix I, 69 pp., 35 figs. (Document 

 No. 947. Issued August 15, 1923.) 

 ■ Aquatic plants in pond culture. Second edition. By John W. Titcomb. 

 Appendix II, 24 pp., 32 figs. (Document No. 948. Issued November 3, 

 1923.) 



Artificial propagation of whitefish, grayling, and lake trout. By 

 Glen C. Leach. Appendix III, 32 pp., 42 figs. (Document No. 949. 

 Issued December 1, 1923.) 



Alask.\ FISHERY' AND FUR-SEAL INDUSTRIES IN 1922. By Ward T. Bower. 

 Appendix IV, 118 pp., 16 figs. (Document No. 951. Issued December 28, 

 1923.) 



Fishery industries of the United States. Report of the division of 

 FISHERY INDUSTRIES FOR 1922. By Harden F. Tajlor. Appendix V, 

 111 pp., 4 figs. (Document No. 954. Issued December 31, 1923.) 



Artificial PROP.\Gji.TioN of brook trout and rainbow trout, with notes 

 ON THREE other SPECIES. By Glen C. Leach. Appendix VI, 74 pp., 22 

 figs. (Document No. 955. Issued January 24, 1924.) 



Progress in biological inquiries, 1923. Report of the division op sci- 

 entific INQUIRY FOR THE FISCAL YEAR 1923. By Willis H. Rich. Appen- 

 dix VII, 27 pp. (Document No. 956. Issued February 2, 1924.) 



A NEW MYXOSPORIDIAN PARASITE, THE CAUSE OF " WORMY " HALIBUT. Bv 



H. S. Davis. Appendix VIII, 5 pp., 10 figs. (Document No. 957. Issued 



January 29, 1924.) 

 The ichthyophthirius disease op fishes, and methods of control. By 



Herbert F. Prytherch. Appendix IX, 6 pp., 10 figs. (Document No. 959. 



Issued April 21, 1924.) 

 Oyster-cultural problems of Connecticut. By J. S. Gutsell. Appendix X, 



10 pp., 2 figs. (Document No. 960. Issued May 22, 1924.) 

 Experiments in the artificial propagation of oysters. By Herbert F 



Prytherch. Appendix XI, 14 pp., 9 figs. (Document No. 961. Issued 



June 4, 1924.) 

 The fisheries of Key West and the clam industry of southern Florida. 



By W. C. Schroeder. Appendix XII, 74 pp., 29 figs. (Document No. 962. 



Issued June 26, 1924.) 

 Propagation and distribution of food fishes, fiscal year 1923. By Glen 



C. Leach. Appendix XIII, 108 pp., 3 figs. (Document No. 964. Issued 



September 3, 1924. 



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