RECORDS OF MEETINGS 213 



BUSINESS MEETING. 

 6 November, 1911. 



The Academy met at 8 :25 p. M. at the American Museum of Natural 

 History, Vice-President Kunz presiding in the absence of President 

 Boas. 



The minutes of the last meeting were read and approved. 



The Recording Secretary reported the following deaths : 



Elliott C. Smith, Active Member for G years, 



The Recording Secretary also reported the acceptance of an invitation 

 to participate in and send delegates to the Eighth International Con- 

 gress of Applied Chemistry. 



The Recording Secretary spoke of the desirability of the Academy be- 

 coming a member of the Seismological Society of America, and on 

 motion it was voted to refer the matter with approval to the Council for 

 action. 



The Academy then adjourned. 



Edmund Otis Hovey, 



Recording Secretary. 



SECTION OE GEOLOGY AND MINERALOGY. 

 6 November, 1911. 



Section met at 8 :35 p. M., Vice-President George F. Kunz presiding, 

 twenty-five members and visitors being present. 



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

 proved. 



The following programme was then offered: 



George F. Kunz, On the Occurrence of Opal in Northern Nevada 



and Idaho. 



After the discussion of Dr. Kunz's paper, several brief accounts of 

 scientific observations were made by members of the Section. Dr. E. 0. 

 Hovey gave a preliminary note on Meteor Crater, or "Coon Butte," 

 Arizona. This was based on a personal visit recently made by Dr. 

 Hovey. The view that this remarkable depression has been formed by 

 meteor impact is believed to account for the facts observed on the ground. 

 Remarks were made by Professor Martin calling attention to Mr. Gil- 

 bert's impact theory for the origin of lunar craters also. 



