1885.] NEW YORK ACADEMY OF SCIENCES. 89 



mentioned above, from the original hieroglyphs through the 

 Demotic. 



The subject was discussed by Prof. H. C. Bolton, Dr. L. 

 ScHOENEY, the President, and the Author of the pai)er. 



December 14, 1885. 



Stated Meeting. 



The President, Dr. J. S. Newberry, in the chair. 



A large audience present, in tlie west lecture room of the Library 

 Building, Columbia College. 



The first lecture of the Popular Lecture Course was delivered 

 by Prof. Edward D. Cope. 

 Subject: The genealogy of the mammalia. 

 (Illustrated with diagrams and charts.) 



December 21st, 1885. 

 Stated Meeting. 

 The President, Dr. J. S. Newberry, in the chair. 

 Seventy-two persons present. 

 The following papers wei'e read by title. 

 I. A review of the genera and species of diodontid^ 



FOUND IN AMERICAN SEAS. By CaRL H. EiGENMAN. 



IL A REVIEW OF THE NORTH AMERICAN SPECIES OF PETRO- 



MYZ0NTID2E. By David S. Jordan and M. W. Fordice. 



(Published in the Annals, vol. IIL, Nos. 9 and 10). 



Professor William D. Marks, of Philadelphia, Pa., read a 

 paper entitled 



A REVIEW OF DYNAMIC ELECTRICITY. 



Electricity can at our will be converted into heat, light, and 

 motive power. With all these capabilities it lends itself in a 

 wonderful way to the convenience of man, because of its ability 

 to be led to the exact point at which we desire to use it, and can 

 then be used at will in large or small quantities. 



