IMPORTANT. 



All matter for the New York Academy of Sciences should 

 be addressed — 



New York Academy of Sciences, 

 Columbia University, 



(Sub-Station 84), West II6th Street, 



New York City, 



United States of America. 



It is requested that all correspondents of the Academy will 

 have the above address correctly recorded on their mailing 

 lists, and that exchanges be addressed accordingly. 



