LETTER OF TRANSMITTAL. 
U. S. DEPARTMENT OF AGRICULTURE, 
DIVISION OF ENTOMOLOGY, 
Washington, D. C., May 26, 1899. 
Sir: I have the honor to transmit herewith a copy of an article 
contributed by me to the Yearbook for 1895, entitled “The shade- 
tree insect problem in the Eastern United States.” I have found the 
reprints of this article of great use in correspondence, and as the 
edition is exhausted, I recommend that it be republished, under the 
title Three Insect Enemies of Shade Trees, as a Farmers’ Bulletin. I 
have in preparation a more extended bulletin on the subject of shade- 
tree insects, but in the interval which will elapse before it is completed 
the Farmers’ Bulletin reprint of the Yearbook article will be of service. 
Respectfully, 
L. O. HOWARD, 
Entomologist. 
Hon. JAMES WILSON, 
Secretary of Agriculture. 
a alien 
