LETTER OF TRANSMITTAL. 



U. S. Department of Ageicultuee, 



Division op Entomology, 

 Washington, D. G. , April 39, 1902. 

 Sir: 1 have the honor to transmit for publication a manuscript pre- 

 pared by Mr. Nathan Banks, of this office, in which are considered the 

 principal insects liable to be distributed upon nursery stock. The 

 inspection of nursery stock under State laws has become so general 

 throughout the United States that the desirability of some publication 

 of this sort has become very evident. I had the matter in mind last 

 autumn, and at a conference of the official horticultural inspectors for 

 the United States, held at Washington October 11-13, 1901, a resolu- 

 tion was unanimously passed requesting this Department to prepare 

 and publish an article on those nursery pests of the country which 

 are capable of transmission on nursery stock to the injury of the pur- 

 chasers. Since it is desirable that this manuscript shall be put in 

 available shape for distribution to all horticultural inspectors and to 

 all nurserymen and others immediately interested, I recommend that 

 it be issued as Bulletin No. 34, new series, of this Division. 



Respectfully, 



L. O. Howard, 



Entomologist. 



Hon. James Wilson, 



Secretary of Agriculture. 



