LETTER OF TRANSMITTAL. 
U. S. Department of Agriculture. 
Division of Entomology. 
Washington, D. ('.. April 15, 1902. 
Sir: 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. Howard. 
Entomologist. 
Hon. James Wilson. 
Secretary of Agriculture . 
