4 6 



United States of America 



New Orleans 



Demerara 



Essequibo 



Berbice 



Surinam 



Jamaica 



Bahamas 



Trinidad 



Tortola 



Tobago 



Antigua 



St. Vincent 



St. Lucia 



Grenada 



Barbados 



Dominica 



Martinique 



Montserrat 



St. Kitt's 



St. Thomas 



Total raised by the Labour of Negroes 



Total not raised by the Labour of Negroes ... 



Total imported during the War in the year 1799 



185,373 

 24,858 



210,231 



REPORT ON WORK AT CINCHONA, JAMAICA, 

 THE TROPICAL STATION OF THE NEW YORK 

 BOTANICAL GARDEN. 



By DR. FORREST SHREVE.* 

 To Dr. N. L. Britton, Dircctor-in-Chief, New York Botanical Garden. 

 Sir, 



Having been granted leave of absence during my tenure of the 

 Bruce Fellowship in the Johns Hopkins University, I left Baltimore 

 on October 13, 1 905, for Jamaica, where I at once took up my 

 residence at the tropical station of the Garden, at Cinchona, re- 

 maining until May. 



The general plan of my work was to make a study of the 

 physiological plant geography of the Blue Mountain region above 

 an altitude of 4,500 ft., and the various lines of investigation which 

 this embodied were carried on more or less concurrently. I made 

 a digest of the old meteorological records for Cinchona, and other 

 nearby points, in regard to air and soil temperature, humidity 

 and rainfall. With these climatic data as a basis I then en- 



*From Journal of the New York Botanical Garden, VII, No. 80, Aug. 1906. 



