324 RECORDS. 



conglomerate. These characters are too local to give it the 

 assumed stratigraphic importance, while the flanking conglom- 

 erates are really of great range. Edmund Otis Hovey, 



Scci'ctary. 



SECTION OF ANTHROPOLOGY AND PSYCHOLOGY. 



March 28, 1904, 



Section met at 4:30 and 8:15 P. M., in conjunction with 

 the New York Branch of the American Psychological Associa- 

 tion, F. J. E. Woodbridge, presiding. 



The afternoon session was held at the Psychological Labora- 

 tory of Columbia University, and the evening session at the 

 American Museum of Natural History. 



The following program was offered : 



E. L. Thorndike, Mental Resemblances of Twins. 



Miss Naomi Norseworthy, Measurements of the Men- 

 tally Deficient. 



R. S. Woodworth, Color Contrasts. 



J. McK. Cattell, New Apparatus and Methods. 



V. A. C. Henmon, The Time Perception as a Measure of 

 Differences in Sensation. 



H. H. Marsh, The Daily Curve for Efficiency. 



C. H. Judd, Habits Based on Analogy. 



W. P. Montague, A Neglected Point in Hume's Philosophy. 



J. E. Lough, The Determination of the Habit Curve 

 FOR Associations. 



P. Hughes, Action as the Concept of Historical Syn- 

 thesis. 



Summary of Papers. 



A report was made by Professor Thorndike on the general 

 results of a comparison of twins in tests of attention, perception, 

 association, rate of movement, addition, multiplication and stature. 

 The resemblances as measured by a rough, preliminary method, 

 were about .75. The amount of this resemblance that should 

 be attributed to similarities in home training was apparently slight. 

 There was no evidence in the results to support the theory that 



