ELEMENTARY ENTOMOLOGY 



BY 



E. DWIGHT SANDERSON 



DEAN OF THE COLLEGE OF AGRICULTURE, WEST VIRGINIA UNIVERSITY 

 DIRECTOR WEST VIRGINIA AGRICULTURAL EXPERIMENT STATION 



AND 



C. F. JACKSON 



PROFESSOR OF ZOOLOGY AND ENTOMOLOGY, NEW HAMPSHIRE COLLEGE 



GINN AND COMPANY 



BOSTON NEW YORK CHICAGO LONDON 



