Vol. IX. 



MAY-JUNE. 



No. 8. 



?J/.2/Jl. 



TRANSACTIONS 



New York Academy of Sciences 



1889-1890. 



Edited by 

 THE RECORDING SECRETARY, 



Assisted by 

 The Publication Committee. 



PUBLISHED FOR THE ACADEMV, 

 In Eight Monthly Numbers, from October to May, inclusive. 



