**A Study of the Toxicity of Kerosene," by William Moore, St. Paul, 

 Minn. (10 minutes.) 

 Chemical composition and physical characteristics of different brands of kero- 

 sene, and influence on the death of the insects and Hability to "burn" plants. 



"Certain Principles Governing the Value of Ether Soluble Compounds 

 as Contact Insecticides," by William Moore and S. A. Graham, 

 St. Paul, Minn. (10 minutes.) 

 Manner of penetration into the insect body of various ether soluble chemicals 

 and the chemical and physical properties influencing this penetration. 



"Some Further Facts on Low Atmospheric Humidity as an Insecti- 

 cide, " by Thomas J. Headlee, New Brunswick, N. J. (15 min- 

 utes.) (To be read by title.) 



"Insecticide Tests with Diabrotica vittata," by Neale F. Howard, 

 Madison, Wis. (10 minutes.) 

 Results of cage tests with several stomach poisons during past two seasons at 

 Madison, Wis. 



"The Imported Cabbage Worm in Wisconsin," by H. F. Wilson and 

 L. G. Centner, Madison, Wis. (10 minutes.) 



"Some Root Maggots," by O. A. Johannsen, Ithaca, N. Y. (10 min- 

 utes.) 



"Poisoned Bait Experiments with the Onion Maggot," by Neale F. 

 Howard, Madison, W^is. (10 minutes.) 

 Brief statement of results obtained in two seasons at Green Bay, Wis. 



"Notes on the Biology of the Angoumois Grain Moth, " by J. L. King, 

 Harrisburg, Pa. (15 minutes.) Lantern. 

 Brief description of Ufe cycle and egg laying habits of the first generation of 

 moths which attack the grain in the field. 



"Studies on the Life-Histories of Two Kansas Scarabseidae, " by 

 William P. Hayes, Manhattan, Kan. (10 minutes.) 

 A report on the Mfe histories of a species of Cyclocephala and a species of 

 Anomala. 



"An Emergence Response of Trichogramma minutum Riley to Light," 



by George N. Wolcott, Utica, N. Y. (10 minutes.) 



Adults of the Hymenopteron, Trichogramma minutum, normally emerge from 



one to two hours after sunrise, but when kept in darkness, more than six 



times as many emerge in the first hour after being exposed to dayUght, as 



emerge in the dark per hour of previous dayUght in the same day. 



Adjournment. 



