Trans. N. Y. Ac. Set. 72 March lo^ 



March lo, 1884."" 



Section of^Physics.§ 



The President, Dr/J. S. Newberry, in the Chair. 

 Sixty persons were present. 



An invitation was received to send a delegate to the third an- 

 nual meeting of the Royal Society of Canada. 



Letters of resignation from Messrs. C. F. Imbrie, W. Le Conte 

 Stevens and J. K. Funk were read and accepted, and Mr. John 

 G. Branner, of Scranton, Penn., a geologist to the Pennsylvania 

 Geological Survey, was elected a Corresponding Member. 



Mr. G. F. KuNZ exhibited some very small crystals of quartz, 

 found in the Bear River region, Idaho, and Fort Defiance, Arizona, 

 where thousands of miners are looking for diamonds. These 

 crystals of quartz resemble those of that mineral, from their 

 rounded and, apparently, octahedral form, which is due partly to 

 the mode of crystallization, the two sets of pyramidal planes of 

 the terminations closely approaching each other, and partly tO' 

 abrasion by rolling in streams. 



The President had found quartz crystals of the same form in 

 the Shell Creek range, in Eastern Nevada, scattered in thousands 

 through a trachytic rock, as well as in a similar rock of the Black 

 Hills. He had examined the material washed from the sands of 

 Upper California in search for platinum. In this a diamond of the 

 weight of five-eighths of a karat had been found, and one even 

 larger. 



A paper was then read by H. Carrington Bolton, Ph.D., of 

 Trinity College, Hartford, illustrated by a series of specimens, 

 on 



RECENT VISITS TO "SINGING BEACHES" IN SCOTLAND AND 



AMERICA. 



[Abstract.] 



The speaker stated that, since the paper by his co-worker, Dr. ALEXIS 

 A. JULIEN, on the " Singing Beach of Manchester, Mass.," had been 

 read before the Academy, he had continued his investigations, and 



