LETTER OF TRANSMITTAL. 
U. S. DreparRTMENT OF AGRICULTURE, 
Diviston oF ENTOMOLOGY, 
Washington, D. C., April 15, 1902. 
Srr: I have the honor to transmit herewith a manuscript containing 
a large number of accounts of insects injurious to vegetable crops, 
which have been drawn up, as a result of his investigations, by Mr. 
F. H. Chittenden, Assistant Entomologist. Mr. Chittenden has been 
devoting himself assiduously to this work for some years, and has 
learned a great deal that is valuable to truck farmers and to economic 
entomologists. I recommend that this manuscript be published as 
Bulletin No. 33, new series, of this Division. 
Respectfully, L. O. Howarp, 
Entomologist. 
Hon. James WILSON, 
Secretary of Agriculture. 
