4 
POPULAR LECTURES. 
The Academy is largely aided in its scientific work by its 
general membership, and the course of illustrated popular lectures 
arranged for each winter is specially for the benefit of the general 
Members and of the public. The subjects of the lectures are 
chosen from different branches of science, and are designed to 
present in a popular manner the latest results of research. Each 
Member receives two Course tickets, and additional tickets can 
be procured. During the present year, 1894-5, the lectures are 
being delivered in the large hall of the New York Academy of 
Medicine. 
Persons desiring to join the Academy or support its scientific 
work by subscription should address, 
THE SECRETARY, 
New York Academy of Sciences, 
COLUMBIA COLLEGE, 
NEW YORK CITY. 
