-187- 
(549) SMITH, C. F. 
1942* The use of cyanide in controlling the root form of 
the woolly apple aphid. Jour. Econ. Bit. 35:908- 
910. 
(550) SMITH, F. P., and WEISS, F. 
1942. Relationship of insects to the spread of azalea flower 
spot. U. S. Dept. Agr. Tech. Bui. 798, 43 pp. 
(551) SMITH, G. L., SCALES, A. L., and FONTENOT, J. A. 
1942. Effect of insecticidal drift in small plots upon boll 
weevil and cotton aphid. Jour. Econ. Ent. 35:594- 
595. 
(552) SCALES, A. L., and GAINES, R. C. 
1941. Further studies of various insecticides against three 
cotton insects. Jour. Econ. Ent. 34:310-313. 
(553) SMITH, J. H. 
1940. Report of the entomological section. Queensland Dept. 
Agr. and Stock Ann. Rpt. (1939-40) : 10-12. 
(554) SMITH, L. G., HILL, 0. J., and TOLMAN, W. 
1942. Cattle grub and its control in Washington. Wash. 
State Col., Ext* Serv. Bui. 294, 14 pp. 
(555) SMITH, W. W. 
1943. Strawberry insects and their control in Missouri. Mo. 
Agr. Expt. Sta. Bui. 463, 22 pp. 
(556) SPENCER, G. J. 
1940. Ectoparasites of birds and mammals in British Columbia* 
V. Parasites of domestic animals (mammals). Ent. 
Soc. Brit. Columbia, Proc. 36:19-23. 
(557) 
1941. The control of human lice under war conditions. Canad. 
Ent. 73:20. 
(558) SPEYER, E. R. 
1939. Animal pests. [Cheshunt] Expt. and Res. Sta. Ann. 
Rpt. 24:64-75. 
(559) and PARR, W. J. 
1942. Wireworm investigations. [Cheshunt] Expt. and Res. 
Sta. Ann. Rpt. 27:58-60. 
