378 ANNALS NEW YORK ACADEMY OF SCIENCES 



Summary of Paper. 



Professor Grabau said in abstract: Foster's Flat below the whirlpool 

 of Niagara and the topography and cross section of the gorge show 

 that the falls of Niagara were once localized there in the same style 

 as is now the case at Goat Island. The same kind of development of 

 river work is well illustrated also at the falls of the Genesee. 



The paper was discussed by Professor D. "W. Johnson, who cited what 

 is probably a similar case from near St. Anthony's Falls, Minnesota, 

 of the Mississippi River. 



The Section then adjourned. 



Edmund Otis Hovey, 



Secretary pro tern. 



SECTION OF BIOLOGY. 



11 November, 1912. 



On this occasion the Section of Biology co-operated with the Academy 

 as a whole and with the American Museum of Natural History in 

 welcoming Dr. Alexis Carrel, recipient of the Nobel Prize in medicine, 

 1912, who gave a lecture in the large auditorium, entitled "Results of 

 the Suture of Blood Vessels and the Transplantation of Organs," about 

 800 persons being in attendance. After the lecture an informal re- 

 ception, attended by the officers, members and friends of the Academy 

 was held in honor of the lecturer. 



William K. Gregory, 



Secretary. 



SECTION OF ASTEONOMY, PHYSICS AND CHEMISTRY. 



18 November, 1912. 



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

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

 approved. 



The following programme was then offered : 



Albert B. Pacini, The Distribution op Ferric Chloride between 

 Ether and Aqueous Hydrochloric Acid at 

 25° C. 



Charles Lane Poor, The Cause of the Tides. 



