4 LETTER OF TRANSMITTAL. 
It has been tound that bisulphid of carbon in a high temperature, 
ranging between 90° F. and 100° F., will kill practically all fig moths 
with an exposure of 24 hours, even with less of the fumigant than 
is usually advised. 
I recommend the publication of these papers as Bulletin No. 104 
of the Bureau of Entomology at the earliest possible moment, since 
there is urgent demand for this information on the part of merchants 
and growers interested in the culture, shipment, and sale of Smyrna 
figs. 
Respectfully, L. O. Howarp, 
~ Chief of Bureau. 
Hon. James WILson, 
Secretary of Agriculture. 
