Bee 9) | 
spring may indicate a possible benefit to be derived from inoculation of lawns 
or golf courses which are heavily infested with grubs. 
@ 
STORED PRODUCT INSECT INVESTIGATIONS 
E. &. Back, Entomologist in Charge 
George Washington University during its recent Commencement conferred 
the degree of doctor of philosophy upon R. T. Cotton. 
The. University of Southern California conferred the degree of master of 
science upon A. 0. Larson, June, 1924. Mr. Larson presented a thesis entitled 
"The Host Selection Principle as Applied to Bruchus quadrimaculatus." 
J. C. Hamlin, who received the B. S. degree in 1916 from Clemson Col- 
_ lege and the M. S. degree in 1918 from the Ohio State University, was trans- 
_ ferred June 23 from Southern Field Crop Insect Investigations to this office 
and has been assigned to the study of dried-fruit insects. Mr. Hamlin left 
for the Pacific coast June 25. Aside from his experience in the work of the 
Federal Horticultural Board and this Bureau, Mr. Hamlin was employed during 
1921 and 1922 by the Commonwealth of Australia in connection with the intro- 
duction of insect enemies of the cactus plant. 
C. K. Fisher, joint author with A. 0. Larson, presented a paper,"The 
Possibilities of Weevil Development in Neglected Seeds in Warehouses," before 
the recent entomological meetings at Palo Alto, Calif. 
Dr. R. T. Cotton has recently spent several days at Orlando, Fla., con- 
ferring with E. A. Vaughan regarding the work at the Orlando station. 
SOUTHERN FIELD CROP INSECTS INVESTIGATIONS 
J. L. Webb, Entomologist Acting in Charge 
B. R. Coad, in charge of the boll-weevil laboratory at Tallulah, la., 
made a trip to Washington early in the month for consultation with the Chief 
of the Bureav and others in regard to the experimental work in airplane dust- 
ing for boll-weevil control. 
A cooperative project between the Bureau of Entomology and the Bureau of 
Standards has been inaugurated, having for its object a thorough study of the 
electrical effects in insecticide dusts. V. E. Whitman, of the Bureau of 
Standards, has been assigned to the problem. The field work will be carried 
on at Tallulah, La. 

