200 ANNALS NEW YORK ACADEMY OF SCIENCES 



and it was pointed out how the existing balance of fish-life was favorable 

 to a great abundance of Gambusia. etc., which might be expected to prey 

 on mosquito larva;. The Centrarchids would be likely to hold in check 

 a fish like the banded pickerel, which would have followed these small 

 fishes into the shallows where the Centrarchids did not follow them and 

 perhaps materially reduce their numbers. The situation here, where 

 the large primitive gar, the spiny-rayed modern Centrarchids and the 

 abundant intermediate Pceciliids made up the bulk of the fish population, 

 was compared with the more complicated marine situation where large 

 selachians and spiny-rayed basses, snappers, grunts, wrasses, scorpion 

 fishes, etc., and schooling herrings and anchovies of various sorts in a 

 way constituted homologous classes. The paper was illustrated with 

 lantern slides. 



The Section then adjourned. L. Hussakof, 



Secretary. 



SECTION OF ASTRONOMY, PHYSICS AND CHEMISTEY. 



17 April, 1911. 



By permission of Council, no meeting was held. 



Edward J. Thatcher, . 



Secretary. 



SECTION OF ANTHROPOLOGY AND PSYCHOLOGY. 



24 April, 1911. 



Section met at 8 :15 p. m., in conjunction with the New York Branch 

 of the American Psychological Association. The afternoon session was 

 held at the Psychological Laboratory, Columbia University, and the 

 evening session was held at the American Museum of Natural History. 



The following programme was offered : 



George R. Montgomery, A Simple Method for the Study of En- 



toptic Phenomena. 

 J. E. Wallace Wallin, The Preferred Length of Interval. 

 E. K. Strong, Jr., Sex and Class Differences in Response 



to Advertisements. 

 E. L. Thorndike, The Curve of Work. 



H. L. Hollingworth, The Influence of Caffein on the Quality 



of Sleep. 

 W. P. Montague, Has Psychology Lost Its Mind ? 



I. Woodbridge Riley, The Spread of Christian Science. 

 E. W. Scripture, Psychanalysis and the Interpretation of 



Dreams. 



