New York 

 Academy oe Sciences. 



KOUNDED IN 1817. 



ORGANIZATION. 



The New York Academy of Sciences is fourth in age among 

 American scientific societies, having been organized in 1S17 as 

 the Lyceum of Natural History. It embraces all branches of 

 science and its scope is the same as that of the older Euro- 

 pean societies. Its publications are of world-wide reputation 

 and contain the first announcement of many discoveries, which 

 have proved to be of great importance in their practical and 

 theoretical relations. 



The former Presidents have been : Dr. Samuel L. Mitchell, 

 1817-1833. Professor John Torrey, 1834-1826; 1836. Major 

 Joseph Delafield, 1827-1837; 1839-1865. Professor Charles 

 A. Joy, 1866-1867. Professor John S. Newberry, 1868-1892. 

 Professor O. P. Hubbard, 1 892-1 893. Dr. H. Carrington Bol- 

 ton, 1893-1894. Professor John K. Rees, 1894-1896. Profes- 

 sor J. J. Stevenson, 1896-1898. 



MEMBERSHIP. 



Honorary members are limited to fifty in number, and are 

 elected from the representative scientific men of the world. 

 Corresponding members are also chosen from distinguished men 

 in different parts of the world engaged in the prosecution of vari- 

 ous branches of research, the results of which they are invited 

 to communicate to the Academy from time to time. This list 

 now includes over 250 names. 



Fellows are limited to 100 and are chosen from amonsf the 

 Resident Members in recognition of scientific attainments or 

 services ; they form the Council and the main working body, 

 and conduct the business of the Academy. 



Resident Membership is not restricted to specialists, but is 



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