"New Facts Concerning the Habits of the Rockj^ Mountain Spotted- 

 Fever Tick, Dermacentor venustus Banks," by R. R. Parker, 

 Bozeman, Mont. (15 minutes.) 



"The Ecology of Certain Insects Which Infest Stored Food Products," 

 by Royal N. Chapman, St. Paul, Minn. (10 minutes.) Lan- 

 tern. 



Factors which influence the abundance of insects in various products and their 

 importance in the control of the insects. 



Adjournment. 



Program 



Wednesday, December 31, 1919, 1.30 p. m. 



Discussion of the Presidential Address. 



Reading of Papers 



"Possibility of Exterminating Certain External Parasites of Live 

 Stock and Poultry," by F. C. Bishopp, Dallas, Tex. (15 

 minutes.) 



"The Extermination of the Pink Bollworm of Cotton in Texas," by 

 Ernest E. Scholl, Austin, Tex. (15 minutes.) 



"The Extermination of the Pink Bollworm of Cotton in Texas," by 

 W. D. Hunter, Washington, D. C. (15 minutes.) 



"The European Corn Borer Problem," by E. P. Felt, Albany, N. Y. 

 (15 minutes.) 

 General discussion of local and national aspects. 



"The Work of the Railroad Entomologist," by V. I. Safro, Louisville, 

 Ky. (15 minutes.) 



"Professional Entomology: The Call and the Answer," by E. H, 

 Gibson, Alexandria, Va. (10 minutes.) 



"Commercial and Professional Entomology — The Future of Our Pro- 

 fession," by W. Dwight Pierce, Denver, Colo. (15 minutes.) 



Will show wherein modern business life holds out better prospects to the 

 entomologist than the official state, federal, and institutional positions. 



A general survey of the possible developments of this new field and some of 

 the qualifications necessary. 



''Notes on Poisoning the Boll Weevil," by Wilmon Newell, Gaines- 

 ville, Fla. (15 minutes.) 



Carefully made experiments show that the efficacy of lead and calcium arsen- 

 ates is not increased by the presence of dew or rain water on the plants. 



