112 
Mr. Smith thought it would be advisable to make tests in the direc- 
tions suggested, and also referred to the results of experiments con- 
ducted by himself against ants with bisulphide of carbon, which 
indicated that this substance was not necessarily injurious to vegeta- 
tion; and in fact had resulted in a more healthy and vigorous growth 
of grass on the soil treated. 
Mr. Davis reported the use of this substance to destroy woodchucks 
in Michigan. 
Mr. Lintner made some inquiries as to the effect of bisulphide on 
grain when used in quantity to destroy stored grain pests. 
Mr. Smith replied that the only information he had on this matter 
was derived from the experiments conducted by Mr. Webster; he had 
had no personal experience. He said that he ordinarily recommended 
exposing peas or beans for two hours to the vapor of bisulphide, and 
that in the case of stored grain, a definite amount be placed on the 
surface of the grain. 
Mr. Saunders said that seedsmen usually exposed their stock to the 
vapors of bisulphide for from five to six hours. 
AFTERNOON SESSION, AUGUST 14, 1894. 
On motion of Mr. Smith, the reading of the minutes of the morning 
session was deferred. 
Mr. Smith presented the following report from the committee ap- 
pointed last year on cooperation among station entomologists : 
REPORT OF COMMITTEE ON COOPERATION AMONG STATION ENTO 
MOLOGISTS. 
Your committee, to whom was intrusted the duty of preparing a plan for coopera- 
tion among the members of the Association and of proposing legislation, would 
report as follows : 
We would recommend that certain lines of work be arranged for, to be carried on 
in cooperation, and that in order to facilitate the work in these lines there be three 
standing committees appointed, consisting of one member each: One to take charge 
of the subject of Life History and Geographical Distribution ; the second to have 
charge of the subject of Insecticides and Insecticide Machinery; the third to pro- 
pose Legislation and direct the efforts to secure legislative action. 
DUTIES OF COMMITTEES. 
The Committee on Cooperation in regard to Life Histories and Geographical 
Distribution shall designate such species of insects as may be determined upon for 
the joint investigation of entomologists of certain States, having in view the species 
having wide economic importance and which it is desirable to investigate in the 
various States, either because of their local importance or lack of knowledge con- 
cerning them; that all the entomologists located within the range of such species 
give as much attention to observations upon them as possible and present the 
results of these observations at the close of the season to the standing committee, who 
shall combine such reports into a symposium on the species to be published by the 
