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Cae Wo. 52 B—New SERIES.” : 
U, Ve DEPARTMENT OF AGRICULTURE. 
_DIVISION OF ENTOMOLOGY, f 
“INSECTS AFFECTING DOMESTIC ANIMALS: 
AN ACCOUNT OF THE SPECIES OF IMPORTANCE 
IN NORTH AMERICA, 
WITH 
MENTION OF RELATED FORMS OCCURRING ON 
OTHER AN'MALS. 
PREPARED UNDER Ti‘) DIRECTION OF THE ENTOMOLOGIST, 
by HERBERT OSBORN, 
Professor of Zoology and Entomology, Lowa Agricultural 
Colleye, Ames, lowa. . mS 
WASHINGTON : 
GOVERNMENT PRINTING OFFICE, - 
1596, 
Yh 
