proceedings: entomologicaIv society 357 



collecting in the Arctic, calling attention to the limitations of travel 

 during the short summer and the ease of travel in winter. In winter, 

 however, animals of migratory and hibernating habits ar^ not encoun- 

 tered. He described the topography of the territory explored, the 

 distribution of the animal and plant life in it and the migrations of 

 some of the forms. He discussed in particular the muskoxen, the yield 

 of long-fibered wool, and contemplated attempts to domesticate them. 

 Among other interesting discoveries was a spider whose nearest relatives 

 occur on certain mountain summits in the United States. Attention 

 was called to the relatively high summer temperature and the twenty- 

 four-hour period of daylight and to its stimulating effect on plant life 

 and to the fact that Arctic animals have to endure a relatively hot sum- 

 mer climate during part of their year. The collections brought back 

 are being studied by various specialists and the published reports will 

 occupy several octavo volumes. Discussion by Messrs. T. S. Palmer, 

 H. M. Smith, W. P. Taylor, R. M. I^ibbey, E. A. Preble, W. B. Bell, 

 and H. C. Oberholser. 



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



ENTOMOLOGICAL SOCIETY OF WASHINGTON 



The 321st meeting of the Society was held in the Auditorium of the 

 Cosmos Club, on April 3, 19 19. Thirty-three members and 4 visitors 

 were present. President Sasscer presided. 



program 



Gibson, Edmund H. : Some war-camp insect problems. This was an 

 informal account of the insect problems which the speaker as a captain 

 in the Sanitary Corps had to contend with at Camp Humphries, Vir- 

 ginia. Captain Gibson spoke of the methods adopted in controlling 

 mosquitoes, flies, and bedbugs, and illustrated his talk by maps, charts, 

 and photographs. 



For the control of mosquitoes both drainage and oiling were employed 

 as well as the occasional removal of the floating debris in the small 

 bays along the river front. As a result of the mosquito eradication a 

 well-known malarial district was converted into a section comparatively 

 free from mosquitoes ; and as shown by charts of the Public Health Ser- 

 vice the camp made the best record of any of the cantonments situated 

 in malarial regions. 



Against the flies, traps and the treating of manures with gasoline 

 flame were resorted to. As a result of this work no epidemics of dys- 

 entery or typhoid occurred in the camp. Captain Gibson brought out 

 the fact that in the observations on the results of the fly work this camp 

 was the only one in the country in which the various species of flies were 

 considered separately. 



A very serious infestation of bedbugs was controlled and the bugs 

 entirely exterminated by two applications of kerosene followed by 

 fumigation with carbon disulphide. 



