RECORDS 63 



brighter pupils have the better memory, while in each of the 

 higher grades (6A-7B) the duller pupils have the better memory. 



In discussing this paper, it was remarked by Professor Thorn- 

 dike that grammar school girls of 14 to 15 do not fairly represent 

 all girls of that age, since the brighter individuals are apt to leave 

 the grammar school before reaching 14 years. 



Professor Cattell, in a paper on the " Intensity of Light and 

 the Error of Perception," described experiments in which 211 

 shades of gray between white and black were sorted out into 

 the order of brightness. The steps were smaller than can be 

 perceived, and there was consequently an error of displace- 

 ment, measuring the just observable difference. For the more 

 accurate observers the error was six cards or about 0.03 of the 

 range between white and black. Observers differ within the 

 extremes of about 1:2. The just observable difference in- 

 creases with the magnitude of the stimulus, but not in direct 

 proportion as required by Weber's law. The increase is more 

 nearly in proportion to the square root of the magnitude, which 

 the speaker has found to hold in other cases and has elsewhere 

 attempted to explain. 



Professor E. L. Thorndike presented results bearing on the 

 question of "Sex Differences with Respect to Variability." A 

 large number of psychological tests of school children has 

 afforded him the opportunity of comparing the variability of 

 boys and girls, as classes, and, on the whole, there is practically 

 no difference between them. 



Dr. W. Bogoras reported some results of his recent obser- 

 vations, undertaken for the Jesup North Pacific Expedition, in 

 northeastern Siberia, among the Chuckchi, Koryak and Kam- 

 chadal peoples. These he found to resemble each other strongly 

 in the structure of their languages and in their folklore. What 

 is especially interesting is the striking similarity, almost iden- 

 tity, between some of their traditions and some of those cur- 

 rent among the North American Eskimos and the Indians of 

 British Columbia. It is not, however, the Asiatics living nearest 

 to Bering Strait, but more southerly tribes, that show most evi- 

 dence of kinship with the Indians. R. S. Woodworth, 



Scci-etarj. 



