a2 LB ies 
J. H. Nicolaou, of Athens, Greece, who has a traveling fellowship 
in economic entomology, made the acquaintance of several of the special— 
ists in taxonomy on April 28 and 29. He was especially interested in 
Tortricidae, and consulted with the Bureau's specialist, August Busck, 
in regard to this family. 
A valuable collection of Philippine Island insects, formed by Dr. 
W. Dwight Pierce while he was employed as entomologist for the Victorias 
Milling Company, of the Island of Negros, has through the interest of 
Dr. Pierce been received from that company. It contains many rare in- 
sects, and interesting material of early stages, and will be a valuable 
addition to the collections of the National Museun. 
Dr. David I. Miller, Government Entomologist of New Zealand, vis— 
ited the taxonomic unit on April 25, and subsequently, in order to con— 
sult with several of the specialists. 
Dr. W. A. Riley, head of the department of zoology, University of 
Minnesota, visited several of the specialists in the taxonomic unit at 
different times from April 24 to April 26. 
On April 26 Dr. Karl von Frisch, head of the zoological laboratory 
of the University of Munich, came to the Division of Insects with Dr. 
N. E. McIndoo, of the Bureau of Entomology, and met several of the tax- 
onomy specialists of the Bureau. 
Professor A. L. Melander, of the department of biology, University 
of the City of New York, spent April 28 and 29 at the Museum examining 
material in the National collection of Diptera. 
Dr. M. W. Blackman, specialist on bark beetles, left Washington 
on May 1 for a summer's field work on forest insects at Prescott, Ariz. 
STORED—PRODUCT INSECTS 
E. A. Back, in Charge 
Dwight F. Barnes, formerly on the staff of the Gipsy-Moth Labora- 
tory, Division of Forest Insects, was transferred April 1, 1930, to 
the laboratory for the study of dried-fruit insects. Mr. Barnes left 
Washington for Fresno, Calif., on April 19. 
On March 51 A. O. Larson, who had for some time been in Washing— 
ton, preparing manuscripts, left for his office at Modesto, Calif. 
E. A. Back and G. W. Ellington visited a flour mill at Ellicott 
City, Md., April 25 and 26, to conduct experiments on fumigation in 
milling machinery. 
