LETTER OF TRANSMITTAL. 
U. S. Department of Agriculture, 
Bureau of Entomology, 
Washington, D. C, September 23, 1912. 
Sir: I have the honor to transmit herewith a manuscript entitled 
" The Behavior of the Honey Bee in Pollen Collecting," by Dr. Dana 
B. Casteel, of this bureau. The value of the honey bee in cross pol- 
linating the flowers of fruit trees makes it desirable that exact infor- 
mation be available concerning the actions of the bee when gathering 
and manipulating the pollen. The results recorded in this manu- 
script are also of value as studies in the behavior of the bee and will 
prove interesting and valuable to the bee keeper. The work here 
recorded was done by Dr. Casteel during the summers of 1911 and 
1912 at the apiary of this bureau. 
I recommend that this manuscript be published as Bulletin No. 121 
of the Bureau of Entomology. 
Eespectfully, L. O. Howard, 
Entomologist and Chief of Bureau. 
Hon. James Wilson, 
Secretary of Agriculture. 
