New York 

 Academy of Sciences. 



KOUNDED IN 1817". 



ORGANIZATION. 



The Academy is fourth in point of age among the scientific 

 societies of America. It was organized in 1817 as the Lyceum 

 of Natural History, and the present title was adopted in 1S76. The 

 constitution and organization are designed to make the Academy 

 broadly representative of Science. The meetings and publica- 

 tions of the Academy are therefore open to all departments of 

 scientific research. 



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

 1817-1833. Professor John Torrey, 1824-1826; 1836. Major 

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

 A. Joy, 1 866-1 867. Professor John S. Newberry, 1 868-1 892. 

 Professor O. P. Hubbard, 1892-1893. Dr. H. Carrington Bol- 

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

 sor J. J. Stevenson, 1896-1897. 



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 who engage in the prosecution of 

 some branch of research, the results of which they are expected 

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

 now includes over 250 names. 



Fellows are chosen from among the Resident Members, in 

 recognition of scientific attainments or services ; they form the 



