oft es 
Basil E. Montgomery has resigned as Field Assistant at the Vin- 
cennes, Ind., laboratory, to take up graduate work in entomology at Purdue 
University. 
FOREST INSECT INVESTIGATIONS 
fF. C. Craighead, Entomologist in Charge 
Dr. Craighead returned September 10 from an extended field trip, 
the purpose of which was the inspection of the major forest insect control 
projects under way in the West. 
J. k. Miller accompanied Dr. Craighead on the inspection of the con- 
trol work on the Kaibab Forest. He has now returned to headquarters at 
Northfork, Calif., and expects to spend the remainder of the field season 
on the Chiguito project. 
F. P. Keen hag returned to the Kaibab Netiona’ Forest to conduct a 
survey necessary for obtaining results of the past summer's control work. 
It is likely that further control work will be carried out this fell, in- 
volving new procedure, which promises to lessen the costs of the operations. 
J. C, Evenden reports that a later examination of the spraying work 
against the lodgepole sawfly ané needle tyer in the Yellowstone National 
Park shows the work to have been entirely successful. A high percentage 
of mortality was obtained against both insects. However, only the road- 
side trees were sprayed and there are many square miles of infested terri- 
tory on each side of the road which will necessitate continued spraying 
for several years. A continuation of this work on a much larger scale is 
contemplated for next year. 
Dr..S. A. Graham is still at his field head iquarters in Itasca Fark, 
Minn., studying the jack pine sawfly. He expects to return to St. Paul 
before the end of the month. if 
Dr. T. 3. Snyder reports thet preliminary results of the cooperative 
tests with the United States Bureau of Standards in spraying with metals 
to prevent. attack by the Californie lead-cable borer (Scobicia declivis Lec. ) 
conducted. at Washington, D. C., this summer, were not very encouraging. 
Various metals were sprayed on sections of California live oak wood infested 
with these beetles, but even some of the harder metals were penetrated by 
the beetles in emerging from the wood. The tests were more severe than 
under conditions such that the beetles would attack cable, since insects 
make greater eifort to emerge than to penetrate. The following metals were 
tested: 
