RECORDS OF MEETINGS 19? 



BUSINESS MEETING. 

 3 April, 1911. 



The Academy met at 8:18 p. m. at the American Museum of Natural 

 History, Vice-President Knnz presiding in the absence of President Boas. 



In the absence of the Recording Secretary, Dr. Charles P. Berkey was 

 elected Recording Secretary pro tern. 



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



The following candidate for active membership in the Academy, 

 recommended by Council, was duly elected : 



Professor Charles P. Eastman, Carnegie Museum, Pittsburgh, Pa. 



The Academy then adjourned. Charles P. Berkey, 



Recording Secretary pro tem. 



SECTION OF GEOLOGY AND MINERALOGY. 



3 April, 1911. 



Section was called to order by Vice-President G. F. Kunz at 8 :23 p. m. 

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

 The following programme was offered: 



D. D. Condit, Observations on Volcanoes of Guatemala. 



George F. Kunz, The Finding of a Great Beryl at Marambaya. 

 A. W. Grabau, Classification of Seas and Lake Basins. 



Summary of Papers. 



Mr. Condit gave an account of explorations made by an expedition of 

 which he was a member in 1907 and described the principal volcanic 

 features of the region with the aid of lantern views. 



Dr. Kunz showed a full-size drawing of the beryl and described its 

 character and quality, as follows: Fine minerals have come to us during 

 the past century or more from the pegmatite rocks of Minas Geraes, 

 Brazil, notably tourmaline, green, blue, or partly colored, chrysoberyl, 

 topaz and other minerals, many of which have more or less gem value 

 when in perfect condition. These have been a continual surprise to the 

 mineralogists and gem collectors of the world. It is my purpose here to 

 note the occurrence of one of the most remarkable finds that has ever 

 been found in this region. 



