926 The American Naturalist. [October, 
‘Prof. Osborn gave the results of ‘“ An Experiment with Emulsions,” 
in which it was thought the Hubbard formula was the best combination 
of soap, water, and kerosene. 
At the meeting last year Mr. W. B. Alwood was Ses chairman 
of a committee to request the various force-pump manufacturers to use 
a standard fitting on spray machinery, in order that any nozzle will fit 
any pump. Entomologists and others who have had occasion to use 
spray machinery have had difficulty in using nozzles upon spray pumps 
other than the pumps made for the particular nozzle used. Mr. Alwood, 
in presenting his report, stated that most of the manufacturers had 
agreed to use a standard fitting for the spray nozzles manufactured by 
them. Correspondence with the manufacturers will be continued still 
further, and a printed report will soon be made, giving the arrange- 
ments made by the committee and the names of the manufacturers 
who have given their consent to the arrangements made by the 
committee. 
The meetings of the association were held at the Columbian University 
the two days preceding the meeting of the A.A. A.S. The committee 
on nominations of officers presented its report as follows, which was 
adopted : 
President, Dr. J. A. Lintner, of New York; first vice president, Dr 
S. A. Forbes, of Illinois; second vice president, Prof. J. H. Comstock, 
of New York; secretary, F. M. Webster, of Ohio. 
Prof. Cook gave some interesting notes upon some parasites, and 
Mr. Wallace presented a paper upon silk culture. At the conclusion the 
association adjourned to meet next year on the Monday and Tuesday 
before the meeting of the A. A. A. S., and at the same place. 
ENTOMOLOGICAL Cius.—The Entomological Club of the A. A. A. S. 
_ held its meetings at the Columbian University, at Washington, August 
_ Igth to 22d. Many entomologists were present, and it was probably 
the largest meeting of entomologists ever held in this country. Byan 
arrangement with the Association of Economic Entomologists papers 
relating to economic entomology were presented before this body, 
while those relating to life-histories and classification were presented 
befére the club. 
President's Address.—In his address as president of the club 
Herbert Osborn made several recommendations of much importance. 
One was the advisability of an international gathering of entomologists 
at the World’s Columbian Exposition in Chicago in 1893. He ae 
ceed that a manual of entomology be prepared. 

