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9 f apes aie 26 
Y_-U. S. DEPARTMENT OF AGRICULTURE, 
aj - BUREAU OF ENTOMOLOGY—BULLETIN No. 108. 
L. O. HOWARD, Edinavloaist and Chief of Bureau. 
LEAFHOPPERS AFFECTING CEREALS, GRASSES, 
| AND FORAGE CROPS. 
BY 
HERBERT OSBORN, 
Professor of Zoology and Entomology, 
Ohio State University. 
IssuED SEPTEMBER 12, 1912. 
Wie= 
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f/ oy : 
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~ tional Museu” 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1912. 
