peep vipa 
Miss Marjorie H. Ellis, of Iowa City, Iowa, has been appointed 
Senior Scientific Aid in the Division. She will assist Mr. Gahan in 
the work on chalcids, and will do some indexing of literature. Miss 
Ellis has a B. A. degree from the University of Iowa. 
DreGrace si. Griswold, of Cornell University, was in Washington 
the first ten days of April, and on several occasions visited the Museum 
and consulted various specialists in the Division. 
Dr. E. D. Ball, of Sanford, Fla., visited here on April 25 and 
worked with the Homoptera collection. 
Dr. W. A. Riley, of the University of Minnesota, was a visitor 
to the Division of Insects on April 21 and 23, when he conferred with 
the various specialists. 
Dr. M. T. Smulyan, of the Gipsy Moth Laboratory, arrived in Wash- 
ington on April 13, and will spend a month studying chalcids of the 
family Perilampidae in the Museum collection. At the present moment 
Dr. Smulyan is working on a revision of the genus Perilampus in North 
America. 
Professor Dayton Stoner, of the University of Iowa, and Mrs. . 
Stoner, on their way to Syracuse, N. Y., stopped in Washington from April 
20 to April 26, and while here called on various specialists in the Divi- — 
sion. 
Alan S. Nicolay, of Upper Montclair, N. J., spent April 28 looking 
over material in the Casey collection. 
R. 0. Malcomson, postgraduate student from the University of 
Illinois, spent his Easter vacation at the Museum working up his collec— 
tion of Mallophaga from Illinois birds. 
Dr. Herbert Osborn, Research Professor in Entomology, Ohio State 
University, recently called at the Museum and made some comparisons with 
types of Homoptera. 
Dr. Carl J. Drake, of Iowa State College, visited the Division 
during his spring vacation to compare specimens in the Hemiptera collec— 
tion and to consult with various specialists. 
Dr. W. T. M. Forbes, of Cornell University, spent three weeks, 
beginning April 3. identifying material with the aid of the collections 
of Lepidoptera. He brought for use here about 1,000 species. 
S. E. Cassino spent April 4 in the Museum, working with the 
Geometridae. Other visitors to the Lepidoptera Section on April 4 were 
Frank Johnson and Graham Fairchild. 
