602 RECORD OF MEETINGS OF THE 



lation among the structural characters of pupae formed, indeed, 

 the basis for selection was further indicated by the results of 

 a statistical study of the correlations between various charac- 

 teristics of pupal groups from several different animal series; 

 although an advantage did not always appear in favor of the 

 surviving group. On the basis of the foregoing, a general 

 theoretical conception was developed, according to which the 

 whole series of internal elements and the whole series of external 

 influences Were regarded as involved in the determination of the 

 general condition of correlation or co-ordination that formed the 

 basis for selection, as adaptive or the reverse. 



M. A. Bigelow, 



Secretary. 



SECTION OF ASTRONOMY, PHYSICS, AND CHEMISTRY. 



May 15, 1905. 



Section met at 8.15 p.m., Vice-President von Nardroff presiding. 

 The minutes of the last meeting of the Section were read and 

 approved. 



The following program was then offered : 



I. L. Tufts, Relation between Ionization and Combustion 



in Flames. 

 L. L. Hendren, Rate of Recombination of Gaseous Ions at 



Low Pressures. 



No abstracts of the above papers have been received. 



Charles C. Trowbridge, 



Secretary. 



BUSINESS MEETING. 



October 9, 1905. 



The Academy met at 8.15 p.m., at the American Museum of 

 Natural History, President Kemp presiding. 



The minutes of the last meeting were read and approved. 



The following names were then presented for election as 

 Active Members, having been recommended by the Council: 



