94 PROCEEDINGS ENTOMOLOGICAL SOCIETY 



No weevils have been found in the Carolinian Life Zone, 

 although cotton is grown in this zone. Minimum winter tem- 

 peratures of 12 F. seem to be an effective barrier. If weevils 

 have gone into hibernation they are not affected by tem- 

 patures that would kill them if in the open. The minimum fatal 

 temperature varies according to humidity. 



Dr. Dyar, speaking of the effect of temperature, stated that 

 it depended in many cases on a minimum rather than average 

 temperature. In this connection he commented on the yel- 

 low-fever mosquito and the amount of area it is capable of 

 covering. 



MEETING OF MARCH 7, 1912. 



The 257th regular meeting of the Society was entertained 

 by Mr. Schwarz in the Saengerbund Hall, 314 C street N.W., 

 on the evening of March 7, 1912, arid there were present 

 Messrs. Babcock, Baker, Barber, Caudell, Dyar, Ely, Foster, 

 Gahan, Heidemann, Hyslop, Johnson, Knab, McAtee, Mar- 

 latt, Meyers, Pierce, Popenoe, Quaintance, Rohwer, Sandorf, 

 Sasscer, Symons, Vickery, and Viereck, members, and Messrs. 

 N. E. Mclndoo, J. R. Malloch, E. Marshall, W. Middleton, 

 W. H. Sill, J. F. Strauss, R, S. Woglum, and W. B. Wood, 

 visitors. President Quaintance occupied the chair. 



The minutes of the preceding meeting were read and ap- 

 proved. 



Mr. Rohwer read a letter from the Danish "Naturhistoriske 

 Forening," expressing a deep appreciation of the action of 

 the Entomological Society of Washington in sending its Pro- 

 ceedings to their society, and stated that said papers would 

 be filed in the library of the University of Copenhagen. In 

 return, they will forward to this Society copies of their pro- 

 ceedings. Mr. Rohwer also read a letter written at the in- 

 stance of the Executive Committee to Mr. George K. Burgess, 

 of the Journal of the Washington Academy of Sciences, which 

 reads as follows : 



