U. S. DEPARTMENT OF AGRICULTURE. 
DIVISION OF ENTOMOLOGY. 
[ ' ' ... — 
BIBLIOGRAPHY 
*UF 
THE MORE IMPORTANT CONTRIBUTIONS 
TO 
PREPARED. BY AUTHORITY OF THE SECRETARY OF AGRICULTURE. 
BY 
SAMUEL HENSHAW. 
Parts I, II, and III. 
THE MORE IMPORTANT WRITINGS 
OF 
BENJAMIN DANN WALSH 
AND 
CHARLES VALENTINE RILEY. 
k 
'43 
WASHINGTON: 
GOVERNMENT PRINTING OFFICE. 
1 8 9U. 
