LETTER OF TRANSMITTAL 



U. S. Department of Agriculture, 



Division of Entomology, 



Washhigtan., D. C, May ^6, 1899. 

 Sir: 1 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. 



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