36 



54. Shepard, H. H. 1956. The pesticide situation for 1955-56. Commodity 



Stabilization Service, United States Department of Agriculture; 

 17 pages. 



55. . 1957. The pesticide situation for 1956-57. Commodity 



Stabilization Service, United States Department of Agriculture; 

 19 pages. 



56. . 1958. The pesticide situation for 1957-58. Commodity 



Stabilization Service, United States Department of Agriculture; 

 23 pages. 



57. , J. N. Mahan, and C. A. Graham. 1959. The pesticide 



situation for 1958-59. Commodity Stabilization Service, United 

 States Department of Agriculture; 24 pages. 



58. %)ringer, P. F. 1956. Insecticides - Boon or bane? Audubon Magazine, 



58(3): 128-130, and 58(4): 176-178, photographs. 



59. , and J. R. Webster. 1951. Biological effects of DDT 



applications on tidal salt marshes. Mosquito News, 11(2): 67-74. 

 Also Transactions 16th North American Wildlife Conference: 383-396. 



60. Stickel, L. F., and P. F. Springer. 1957. Pesticides and wildlife. 



United States Fish and Wildlife Service Wildlife Leaflet 392; 

 12 pages. 



61. Tarzwell, C. M. 1958. The toxicity of some organic insecticides to 



fishes. Proceedings of the Twelfth Annual Conference Southeastern 

 Association of Game and Fish Commissioners: 233-239. 



62. Trautman, C. G. 1952. Pheasant food habits in South Dakota and their 



economic significance to agriculture. South Dakota Department of 

 Game, Fish and Parks, Technical Bulletin Number 1: vi + 89 pages. 



63. U. S. Department of the Interior. 1956. National survey of fishing and 



hunting. United States Fish and Wildlife Service Circular 44; 

 50 pages. 



64. Wallace, G. J. 1959. Insecticides and birds. Audubon Magazine, 6l(l): 



10-12. 



65. Wall Street Journal. 1958. Report of National Aviation Trades 



Association, page 1, August 5, 1958. 



MBi wHoi I'f'fT; ST"r''i 



5'WHSE 00131 



INT.DUP.,D.C.60- 73»35 



