October, ’24] 
PACIFIC SLOPE NOTES 
621 
Pacific Slope Notes 
Professor C. W. Woodworth has returned to the University of California, having 
finished his work in China. 
Mr. Alan P. Dodd, Entomologist of the Commonwealth Prickly-Pear Board, 
Brisbane, Queensland, is now in vSouthern California collecting insect enemies of 
cactus. 
Dr. Frank R. Cole of Redlands, Calif., recently visited the U. S. National Museum 
and examined a number of species in the collection of Diptera. 
The University of Southern California conferred the degree of master of science 
upon Mr. A. O. Larson, June, 1924. Mr. Larson presented a thesis entitled “The 
Host Selection Principle as Applied to Bruchus quadrimaculatus .” 
Mr. J. C. Hamlin, who was recently transferred from Southern Field Crop Insect 
Investigations to the Division of Stored Product Insect Investigations of the Bureau 
of Entomology, has just completed a survey of dried fruit insect conditions on the 
Pacific Coast, and had located temporarily at Dinuba, California. He will devote 
considerable time to the subject of vacuum fumigation for controlling dried fruit 
insects. 
Mr. P. H. Timberlake, formerly connected with the Hawaiian Sugar Planters’ 
Experiment Station in Honolulu, and who has resigned to accept a position with the 
California Citrus Experiment Station at Riverside, Calif., spent the week of June 16 
to 23 in the U. S. National Museum, studying types of chalcid flies. Mr. Timberlake 
was on his way to visit relatives in New Hampshire, and expected to return to River¬ 
side, Calif., where he will be permanently located, about JuV 15. 
According to Science, the California Academy of Sciences is sending a collecting 
party from its department of entomology, in charge of Mr. E. P. Van Duzee, assisted 
by J. O. Martin, into the southern Arizona mountains to collect and study the Son¬ 
oran fauna of the region. They planned to leave San Francisco about July 15 and 
expected to remain in the field from four to six weeks, visiting the Santa Catalinas, 
the Huachucas and possibly others of the southern mountains. 
After attending the meetings of the Pacific Slope Branch, American Association of 
Economic Entomologists at Stanford University, June 26 to 28, Dr. L. O. Howard 
spent several days in southern California, visiting both the Federal and State ento¬ 
mological laboratories in the vicinity. President A. F. Burgess also spent two days in 
a very rapid survey of the entomological work being done there,paying especial atten¬ 
tion to the methods of biological control of citrus pests being carried out under the 
direction of Prof. H. S. Smith. 
After a four months’ leave of absence engaged in investigations on Fanning and 
Washington Islands, Prof. W. B. Herms has returned to active duty in the Depart¬ 
ment of Entomology and Parasitology of the University of California. On his way 
back from these islands, Prof. Herms stopped over at Honolulu to attend the meet¬ 
ings of the Pan Pacific Food Conservation Conference to which he was a delegate, 
returning to San Francisco via the St. Mauri August 12. Whfie on Fanning and 
Washington Islands, Prof. Herms investigated certain cocoanut pests, mainly the 
borer, Diocalandra taitensis (Guerin) which is responsible for considerable damage on 
these islands. In addition Herms and his assistant, Mr. Harold Kirby, Jr., Fellow 
in Zoology, made a general study of the fauna and flora of both islands, particularly 
