LETTER OF TRANSMITTAL. 
U. S. Department of Agriculture, 
Bureau of Entomology, 
Washington, D. C, July 2) h 1912. 
Sir: I have the honor to transmit the manuscript of a paper en- 
titled " The Dispersion of the Gipsy Moth," which is a result of 
extensive studies made to determine the means by which this insect 
is spread. The gipsy moth has caused enormous injury to the horti- 
cultural, forestry, and shade-tree interests in the New England 
States, and the results of the investigations made have an important 
bearing on the proper methods of restricting the further spread of 
this serious pest. 
I recommend the publication of this manuscript as Bulletin No. 119 
of this bureau. 
Respectfully, 
L. O. Howard, 
Entomologist and Chief of Bureau. 
Hon. James Wilson, 
Sec7*etary of Agriculture. 
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