LETTER OF TRANSMITTAL. 



U. S. Department of Agriculture, 



Bureau of Entomology, 



WasUngton, D. C, July 20, 1909. 

 Sir: I have the honor to transmit herewith, for pubhcation as 

 Bulletin No. 68, nine papers deaUng 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 Koot-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. K. Jones; The 

 Peach-Tree Barkbeetle, by H. F. Wilson. 



Respectfully, L. O. Howard, 



Chief of Bureau. 

 Hon. James Wilson, 



Secretary of Agriculture. 



