140 
destroyed by cutting down the limb affected; or, where the tree is small 
and very rare and we can locate it, I have put in bisulphuret of 
carbon and puttied up the hole, thus killing it in the burrow without 
severing the branch. This remedy can be used in the trunks of small 
trees, and is very effective. With an oil can the carbon can be intro- 
duced without difficulty. 
Mr. Smith remarked that the habits of the larvse in wandering or 
migrating into old burrows, mentioned by Mr. Southwick, is paralleled 
in his experience by certain Cossid larvae, with which he had observed 
at various times an exactly similar habit. 
Mr. Howard inquired if anyone could give the present distribution 
of the European leopard moth in the vicinity of New York. 
Mr. Smith said he was confident it had not yet reached New Bruns- 
wick, but possibly had extended as far as Elizabeth, N. J. He said it 
had been reported by Col. Nicolas Pike as occurring in Connecticut. 
In the absence of Prof. F. H. Snow, of Lawrence, Kans., the following 
paper was read by Mr. Lowe : 
WORK IN ECONOMIC ENTOMOLOGY AT THE UNIVERSITY OF KAN- 
SAS FOR THE SEASON OF 1894. 
By Francis H. Snow, Lawrence, Kans. 
WORK WITH CHINCH-BUG INFECTION. 
The principal work in economic entomology conducted by this Uni- 
versity during the present season has consisted of a continuation of 
the laboratory and field experiments for the destruction of chinch 
bugs by Sporotrichum globuliferum. At the date of the present writ- 
ing upward of 6,000 individual farmers have been supplied with Spo- 
rotrichum from our laboratory since April 15, 1894. In addition to the 
supply of individual farmers, thirty- six substations have been supplied 
with the material for the starting of the work of infection in as many 
different counties in the States of Kansas, Missouri, and Oklahoma 
Territory. The material necessary for supplying the large number of 
orders has been manufactured in thirty infection boxes, kept constantly 
in operation since the opening of the season, about the middle of April. 
Live, healthy bugs from the fields have been killed by Sporotrichum 
in these infection boxes, and their mummified bodies have been dis- 
tributed to the farmers with instructions to each individual to establish 
a separate infection box for himself similar to the boxes in use at the 
University laboratory. An improvement adopted the present season in 
the infection boxes has been the spreading over the bottom of each box 
a layer of moist soil about an inch in depth. This seems to afford con- 
ditions for the propagation of the Sporotrichum more in accordance with 
