22 
(16) 
(17) 
(18) 
(19) 
(21) 
(22) 
(23) 
(24) 
(25) 
(26) 
(27) 
(28) 
MISC. PUB. 528, U. S. DEPT. OF AGRICULTURE 
and SWINcLe, H. S. 
1941. CONTROL OF SPATTERDOCK (NUPHAR ADVENA AIT.) IN PONDS. Amer, 
Fisheries Soc. Trans. 70: 363-368, illus. 
SmitH, M. W. 
1940. COPPER SULPHATE AND ROTENONE AS FISH POISONS. Prog. Fish-Cult. 
Memo. I-131 (50): 40. 
SNIESZKO, STANISLAS F. 
1941. POND FISH FARMING IN POLAND. Jn University of Wisconsin, A 
Symposium on Hydrobiology, pp. 227-240, illus. Madison, Wis. 
SWINGLE, H. S., and SMITH, E. V. 
1939. INCREASING FISH PRODUCTION IN PONDS. North Amer. Wildlife Conf. 
Trans. 4: 332-388, illus. 
and SMITH, H. V. 
1938. FERTILIZERS FOR INCREASING THE NATURAL FOOD FOR FISH IN PONDS. 
Amer. Fisheries Soe. Trans. 68: 126-135. 
and SmitH, E. V. 
1941. EXPERIMENTS ON THE STOCKING OF FISH PONDS. North Amer. Wild- 
life Con. Trans, (1940) 5: 267-276, illus. 
and SmitH, H. V. 
1939. FISH PRODUCTION IN TERRACE-WATER PONDS IN ALABAMA. Amer. 
Fisheries Soc. Trans. 69: 101-105. 
and SmiTH, EH. V. 
1941. MANAGING PONDS FOR FISH PRODUCTION. Prog. Fish-Cult. Memo.. 
I-131 (53) : 8-138, illus. 
and SMITH, H. V. 
1941. THE MANAGEMENT OF PONDS FOR THE PRODUCTION OF GAME AND PAN 
FISH. In University of Wisconsin, A Symposium on Hydrobi- 
ology, pp. 218-226, illus. Madison, Wis. 
and SMITH, E. V. 
1942. MANAGEMENT OF FARM FISH PONDS. Alabama Agri. Expt. Sta. Bul. 
254, 23 pp., illus. 
THOMPSON, D. H. 
1941. THE FISH PRODUCTION OF INLAND STREAMS AND LAKES. Jn Univer- 
sity of Wisconsin, A Symposium on Hydrobiology, pp. 206-217, 
illus. Madison, Wis. 
VILLADOLID, D. V. 
1940. PHILIPPINE FISHERIES AND PROBLEMS OF THEIR CONSERVATION. Pacific 
Science Congress Proc. 6 (8) : 369-389. 
WAKSMAN, S. A. 
[1941.] AQUATIC BACTERIA IN RELATION TO THE CYCLE OF ORGANIC MATTER IN 
LAKES. In University of Wisconsin, A Symposium on Hydro- 
biology, pp. 86—105, illus. Madison, Wis. 
O 
