ph, Jo = 
ore 
S. E. Crumb and K. B. McKinney, also of the Clarksville, Tenn., to- 
bacco insects laboratory, are conducting work.on tobacco wireworms at Lexington, 
Ky. , . { 
Temporary appointments as Piela Assistants Sa recently been given to 
the following men: 
BE. C. Herber and I. BR. Taylor to assist D. E. Fink, of the Philadelphia, 
Pa., laboratory; D. M. DeLong, 0. E. Gahm, and H. L. Weatherby, to assist N. F. 
Howard, of the Columbus, Ohio, laboratory; S..F. Grubbs, S. C. Lyon, and 
W. T. Darrow to assist A. C. Morgan, of the Clarksville, Tenn., laboratory; 
J. EH, Durham to assist J. R. Douglas, of the Estancia, N. M., laboratory; 
lL, P, Clarke to assist E. W. Davis, of the Richfield, Utah, substation; 
V. E, Romney to assist Walter Carter, of the Twin Falls, Idaho, laboratory, 
and 7. P. Dawkins to assist M. M. High, of the Gulfport, Miss., laboratory. 

DECIDUOUS-FRUIT INSECT INVESTIGATIONS 
Ase yy Quaintance, Associate Chief of Bureau, in Charge 
Dr. F. L., Campbell, a graduate of Harvard University and the University 
of Pennsylvania, has been appointed Associate Entomologist and assigned to duty 
at Washi ngton, where he will undertake research work on the effect of arsenicals 
and arsenical substitutes on insects, involving studies of the toxic effect of 
groups of inorganic and organic compounds on the ingects under investigation. 
R. S. Filmer, a graduate of the Contest cae hee chlvaget College, has 
been appointed Junior Entomologist and assigned to duty at Washineces PEON 
he will be associated with Doctor Campbell. 
Fred E. Brooks visited Waenenscon in the latter part of June, in connec- 
tion with some investigational work on nut insects at Bell station, Md. He has 
now returned to his permanent headquarters, French Creek, We Va. 
LIBRARY 
Mabel Colcord, Librarian 
NEW BOOKS 
Alexander, W. B. . 
Natural enemies of prickly pear and their introduction into Aus— 
tralia. 80 p., illus. Government printer, Melbourne, 1925. 
(Australia Inst. Science & Industry Bul. 29.) 
Armbruster, Ludwig.’ 
Der Bienenstand als vélkerkundliches mani 147 p., illus, 
Karl Wachholtz, Neuminster in Holstein, 1926. (Hicherei fiir 
Bienenkunde bd: 8. sb ‘Literatur, p. 145-147. 
Beauregard, Henri.- 
Les insectes vesicants... 544 p. 19 pl. Felix Alcan, Paris, 
1890. Bibliographie, p. 461-464. 
uw 
_ 
