.ETTER OF TRANSMHTAL 



U. S. Department of Agriculture, 



Bureau of Entomology, 

 Washmgtrm, D. C, March 27, 1906. 

 Sir: I have the honor to transmit herewith the manuscript of a 

 paper entitled "The Locust Borer," prepared by Dr. A. D. Hopkins, 

 in charge of forest insect investigations, and comprising a summary 

 of information from published accounts supplemented by data secured 

 by recent investigations. It deals more particularly with practical 

 methods of controlling this, our most important enemy of the l)lack 

 locust, and is designed to be of service to owners of plantations and 

 forests, as well as to investigators, in the prevention of injuries to 

 this useful tree. It is the first contribution to a series of papers to 

 be published as a bulletin under the title "Some Insects Injurious 

 to Forests." I recommend its publication as Bulletin No. 58, Part I, 

 of this Bureau. 



Respectfully, 



C. L. Marlatt, 

 Act in g Ch ief of Biirea u . 

 Hon. James Wilson, 



Secretary of Agi'iculture. 



