2o6 proceedings: entomological society 



sections from west to east, one from Guayaquil to Ambato and the other 

 from Loja to Santa Rosa. He also traveled down the Andean Valley 

 from San Antonio to Loja. He showed thirty slides made from photo- 

 graphs obtained during this trip. One of these showed a house made 

 of the giant bamboo which grows in the mountain canyons and which 

 forms such an important material in the building of houses along the 

 coast of Ecuador. Dr. Rose collected several species of cinchona, 

 a plant which is in use for the manufacture of quinine. vSpecimens 

 of cinchona bark, ivory nut, and various tropical fruits which had been 

 preserved in formalin were on exhibition. 



Discussion by Messrs. H. M. Smith, A. D. Hopkins, A. S. Hitch- 

 cock, R. M. LiBBEY and others. 



M. W. Lyon, Jr., Recording Secretary. 



ENTOMOLOGICAL SOCIETY OF WASHINGTON 



The 320th regular meeting of the Society was held March 6, 191 9, 

 in the Assembly Hall of the Cosmos Club. 



There were present t,T) members and 41 visitors. 



The minutes of the 319th meeting were read and approved. 



Messrs. Richard T. Cotton and J. C. Furman, both of the Bureau 

 of Entomology, were elected to membership. 



The Corresponding Secretary called attention to notices that he 

 had recently received, one from Martinus Nijhoflf of the Hague an- 

 nouncing that, since the removal of the submarine menace, he is in 

 position to fill old and new orders for literature; and one from the 

 publishers of Genera inscctorum listing the parts already published, 

 those to appear in 1919, and those that are out of print. 



The program for the evening consisted of moving pictures made 

 1)y the Department of Agriculture and showing the practical applica- 

 tion of control measures against injurious insects. 



Dr. Howard gave a brief talk concerning the application of moving 

 pictures to education and extension work in science especially as re- 

 lating to agriculture and entomology. 



The first picture showed methods and apparatus for eradicating 

 poultry pests and a form of sanitary poultry house. Dr. Pierce 

 made a few preliminary remarks by way of explanation of this picture. 



The second picture illustrated the fumigation of citrous trees in 

 California, and showed the various types of apparatus in use. The 

 legends had not yet been inserted in this picture, and it was fully ex- 

 plained as run off by Mr. vSasscER. 



The last picture showed the eradication of the pink boll worm of 

 cotton in Texas. During the changing of the reels Mr. Busck gave 

 a brief summary of the history of the invasion of this insect into the 

 United States, and expressed the belief that the methods shown in 

 the picture were responsible for the absolute extermination of this 

 very serious pest from something over 10,000 acres of land. 



R. A. Cushman, Recording Secretary. 



