196 ANNALS NEW YORK ACADEMY OF SCIENCES 



SECTION OF ASTRONOMY, PHYSICS AND CHEMISTRY. 



20 March, 1911. 



Section met at 8 :15 p. m., Vice-President Campbell presiding. 



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



The programme for the evening consisted of the following lecture : 



G. W. Ritchey, Recent Celestial Photographs with the 60-inch 

 Reflector of the Mt. Wilson Observatory. 



Summary of Paper. 



Professor Ritchey first of all spoke of the large telescopes of the world 

 and showed various illustrations of them and photographs obtained. Then 

 he described the 60-inch reflector, the method of manufacture and the 

 building of the observatory at Mt. Wilson and showed his wonderful pho- 

 tographs obtained there. 



The Section then adjourned. Edward J. Thatcher, 



Secretary. 



SECTION OF ANTHROPOLOGY AND PSYCHOLOGY. 



27 March, 1911. 



Section met at 8:15 p. m., Gen. James Grant Wilson presiding. 



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



The following programme was then offered: 



Paul R. Radosavljevich, Cephalic Indices in Relation to Sex, Age 



and Social Conditions. 

 Franz Boas, Notes on the Indian Tribes of Mexico. 



Summary of Papers. 



Dr. Radosavljevich illustrated his lecture by charts. A discussion, in 

 which Dr. Fishberg and Professor Boas took part, developed with refer- 

 ence to the possibility of accuracy in certain measurements taken on 

 living individuals. Dr. Radosavljevich apologized to Professor Boas for 

 having unconsciously misrepresented his theories regarding the cephalic 

 index. 



Professor Boas's talk was based on his recent investigations during a 

 several months' sojourn in Mexico. 



The Section then adjourned. F. Lyman Wells, 



Secretary. 



