LETTER OF TRANSMITTAL. 
U. S. Department or AGRICULTURE, 
Bureau or Enromoroey, 
Washington, D. C., March 1, 1911. 
Sir: I have the honor to transmit herewith a manuscript on 
“ Remedies and Preventives against Mosquitoes,” which is largely a 
condensation of the most important of the matter contained in Bul- | 
letin No. 88 of the Bureau of Entomology. The bulletin in question 
contains a very extended consideration of the subject, including long 
quotations and a discussion of the value of remedies of secondary or 
even less importance, upon which, nevertheless, an expression of the 
judgment of the Bureau was thought desirable. I recommend the 
publication of this paper as a Farmers’ Bulletin. 
Respectfully, ae ae 
. O. Howarp, 
Entomologist and Chief of Bureau. 
Hon. James WILson, 
Secretary of Agriculture. 
444 
2 
