"A First Course in Economic Entomology," by F. B. Lowe, 

 Detroit, Mich. (15 minutes.) 



The ground it should cover, where it should lead, etc. 



Adjournment. 



Program 



Tuesday, December 28, 1 p. m. 



Discussion of the Presidential Address. 



Reading of Papers 



"Observations on the House Fly/' by E. P. Felt, Albany, N. Y. 

 (15 minutes.) 



"Controlling the Black Fly in the White Mountains," by 



E. D. Sanderson, Durham, N. H. (15 minutes.) 

 Experiments in the destruction of the larvae. 



"The Present Condition of the Gypsy and Brown-Tail Moth 

 Work in Massachusetts," by F. Wm. Rane, Boston, Mass. (15 

 minutes.) 



"Report op the Season's Work on Arsenical Injury to Fruit 

 Trees," by E. D. Ball, J. E. Greaves and E. G. Titus, Logan, Utah. 

 (10 minutes.) 



All of the principal apple-growing sections west of the Rocky Moun- 

 tains were visited, the orchards examined and the soil tested; notes on 

 the findings and experiments undertaken to test the effect of arsenic on 

 trees, with report of progress. 



"A New Arsenical Poison for the Codling Moth," by C. P. 

 Gillette, Fort Collins, Col. (10 minutes.) 



The results of a brief test of sulfid of arsenic for controlling the 

 codling moth. 



"Some Insecticide Methods Used in Combatting the Gypsy 

 Moth," by A. F. Burgess, Washington, D. C. (15 minutes.) 



A report on some of the methods used, with remarks concerning their 

 value for fighting other insect pests. 



"Some New Facts in Regard to the Lime-Sulfur Solution," 

 by H. A. Surface, Harrisburg, Penn. (15 minutes.) 



The different brands of commercial lime-sulfur solution are of different 

 strengths. These were analyzed chemically and the composition of each 

 is given, showing how much each should be diluted to be equal to the 

 standard formula. 



Carbonic acid gas used as a power for spraying precipitates the dis- 

 solved sulfur. Chemical analyses were made of different samples under 

 this gas pressure, and the results are shown. 



Causes are shown for different colors of the lime-sulfur solution. 



(iv) 



