LETTER OF TRAXSMriTAL. 



U. S. Department of Agricultuee, 



Division of Entomology, 

 'JVashington, D, C, Decemher 3, 1901. 

 Sir : I have the honor to transmit herewith the inannscrii:)t of the 

 Proceedings of the Thirteenth Annnal Meeting of the Association of 

 Economic Entomologists, Avhich was held at Denver, Colo. , Angnst 23 

 and 24, 1901. From the fact that the papers iDresented at the meet- 

 ings of the Association are always of great economic importance, the 

 Department has hitherto published the secretary's reports as bulletins 

 of this Division ; I therefore recommend the publication of the -present 

 report as Bulletin No. 31, new series. 

 Respectfully, 



L. O. Howard, Entomologist. 

 Hon. James Wilson, 



Secretary of Agriculture. 



