-3- 
FCREST INSECT INVESTIGATIONS 
F. C. Craighead, Entomologist, in Charge 
th, Ds Ls MacDougal, in charge of the plant=physiological work 
of Carnegie Institute, recently accompanied Dr, Craighead to the Ashe- 
Maree, N. C., field Labonte to observe certain studies which are 
_ being conducted there. Dr. MacDougal is much interested in certain as- 
pects of our problems relating to the death of trees attacked by bark 
. abe and offered many valuable suggestions for the continuation of the 
studies. 
§ About the middle of May Dr. Craighead spent two days at Amherst, 
Mass., discussing with H. J. MacAloney, the summer's plans for studies of 
the white-pine veevil. 
Leon Rintel and R. C. Hall are assisting Mr. MacAloney in forest- 
insect problems in the Nev Roce Ss States. 
A, D. Daughton has been appointed to assist R. A. St. George with 
the studies of the southern pine beetle at Asheville. J. A. Beal has been 
appointed and assigned to Asheville on the same work, 
Dr. S. A. Graham has three summer assistants, L. W. Orr, G. 8. 
Horton, and Mr. Bjornstad, all students at the University of Minne sota. 
The salary of Mr. Bjornstad is paid by the State Forestry Department of 
Minnesota. The willingness of the authorities in Minnesota to furnish this 
additional assistance well illustrates their interest in our studies. 

Ralph Miller has been appointed as field caste ae ibtowNsla: BSP 
Keen in the Klamath Lake region on the summer surveys the western pine 
bectle. 
In the last week of May Mr. St. Georg ro and Mr. Beal visitcd Dublin, 
Ga., where a considerable amount of turpentined timber is reported dying. 
Control projects and summer activities in the Western States are 
now fully under way. J. EB. Patterson reports that the season is very early 
in the Crater Lake National Park, and that work is progressing rapidly. ‘The 
control operations against the infestation by the mountain pine beetle in the 
Bighole Basin of Montana have been initiated under the direction Ok at ae 
eter = 
* After a warning by the Bureau of Entomology, builders are Pe Paaaee 
g that while tar and tar paper are used in waterproofing wood used in flooring, 
these substances will not prevent attack by our native subterranean termites 
or "white ants." These i insects penetrate such moisture-proofing materials 
and _ carry to the wood the moisture necessary for their life. Insulation of 
wood from the ground by the use of concrete or by impregnating wood with 
coal-tar creosote is necessary to protect it from termites. 
) 
er 
