=: B= 


















* 
Mr. A. J. Ackerman has been in Washington for a few weeks preparing his notes 
1 the subject of nursery insects and has now returned to his headquarters at West 
nester, Pa. 
Mr. A. C. Baker, who has been engaged in lifes history studies of plant lice, 
ith headquarters at Vienna, Va., has been transferred to Washington, D. C. as 
manent headquarters, where he will continue life history studies of plant lice 
egal work with aphididae. 
5 Mr. ¥. F. Turner, ae has been assisting Mr. A. C. Baker at Vienna, Va. in life 
history studies of plant lice, resigned from the Bureau to accept appointment with 
the Georgia State Entomologist, with headquarters at Thomasville, Ga. 
FOREST INSECT INVESTIGATIONS. 
A. D, Hopkins, In Charge. 
i 2 At the Southern Rocky Mountain Station, Colorado Springs, Colorado, a camp was 
established on March 7 on the east slope of Pike's Peak, at an altitude of 9500 feet. 
) From this station special studies will be made by Mr. J. H. Pollock of the "Relation 
a Altitude +o the Periodical Phenomena of Insects", along with other special and 
general projects. 
In Waldo Canyon, within the Pike National Forest, Colorado, at an altitude of 
poco. feet, an outdoor cage will be constructed surrounding and covering the main 
runk of a 20" diameter yellow pine tree, infested by Dendroctonus ponderosae Hopk. 
= The butt cut will be left intact and other sections stood up within the cage. A 
study will be made by Messrs. W. D. Edmonston and George Hofer of the flight habits 
of this important tree destroyer. Other infested trees in close proximity will also 
be utilized for study. 
In Palmer Park, and North Cheyenne Canyon, within a short distance of Colorado 
Springs, Colorado, Mr. George Hofer will make a study of Agrilus acutipennis var. 
in Pelation to the dying of oak trees within the City and Mountain Parks. 
q SOUTHERN FIELD CROP INSECT INVESTIGATIONS. 
W. D. Hunter, In Charge. 
Dr. W. V. King left New Orleans on March 26 to resume the work against the 
ppotiod- fever tick at Florence, Montana. 




G. H, Cowan and u. S. Stanley have been appointed temporary field assistants 
in connection with the work on the Rocky Mountain spotted-fever tick. 
D. L. Van Dine left Washington on March 25 to resume his work on malaria 
mosquitoes at Mound, La, 
Fr, C. jeations who Reitacaekt: & surgical operation in February is now on active 

