LETTER OF TRANSMITTAL. 
U. S. DEPARTMENT OF AGRICULTURE, 
BurEAU OF ENTOMOLOGY, 
Washington, D. C., July 20, 1909. 
Smr: I have the honor to transmit herewith, for publication as 
Bulletin No. 68, nine papers dealing with deciduous fruit insects and 
insecticides. These papers, which were issued separately during the 
years 1907-1909, are as follows: The Pear Thrips, by Dudley Moulton; 
The Spring Canker-Worm and The Trumpet Leaf-Miner of the Apple, 
by A. L. Quaintance; The Lesser Peach Borer, by A. A. Girault; The 
_ Lesser Apple Worm, by A. L. Quaintance ; Grape Root-Worm Investi- 
gations in 1907, by Fred Johnson; Demonstration Spraying for the 
_ Codling Moth, by A. L. Quaintance, S. W. Foster, Fred Johnson, and 
A. A. Girault; The Grape-Leaf Skeletonizer, by P. R. Jones; The 
Peach-Tree Barkbeetle, by H. F. Wilson. 
Respectfully, L. O. Howarp, 
Chief of Bureau. 
Hon. JAMEs WILSON, 
Secretary of Agriculture. 
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