1884.], PLANTING ENTEBPBISE IN THE WEST INDIES. .345 



now the subject of careful experiment to determine the most favour- 

 able circumstances of soil, elevation, rainfall, and aspect, suitable for 

 their successful cultivation, the best methods for harvesting the bark 

 and inducing the largest formation of alkaloids, as well as determining 

 the simplest and most economical methods for their general treatment 

 and management. 



Among the kinds of bark now under experimental cultivation at 

 the Government plantations in Jamaica are : — 



Bed Barks — Cinchona succirubra ; Cinchona succirubra, var. sub 

 pubescens. 



Crown Barks — Cinchona officinalis; Cinchona officinalis, var. 

 uritusinga ; Cinchona officinalis, var. Bonplandiana ; Cinchona 

 officinalis, var. crispa ; Cinchona officinalis magni folia ; Cinchona 

 officinalis pubescens. 



Hybrid Barh — Cinchona hybrid or robusta. 



Ledgeriana Bark — Cinchona Ledgeriana. 



YelloiD Barks — Cinchona calisaya ; Cinchona calisaya, verde ; 

 Cinchona calisaya, var. Josephiana ; Cinchona calisaya, var. Javanica ; 

 Cinchona calisaya verde ; Cinchona calisaya, morada form. 



Grey Barks — Cinchona Peruviana ; Cinchona uitida ; Cinchona 

 micrantha. 



Carthagena Bark — Cinchona lancifolia. 



Guprea Bark — Eemija pedunculata (?). 



The cinchona industry of Jamaica, as indicated above, has now 

 entered upon a practical phase, and plantations are being opened 

 by private parties on a large scale. During the last two years the 

 Government has sold twelve patents, or runs of high forest land 

 containing some 5,000 acres, under conditions which involve that, 

 at least, one-sixth shall be planted with cinchona at the end of five 

 years. 



Besides this, some 2,000 acres — portions of the higher coffee estates 

 suitable for cinchona cultivation — are being gradually opened by their 

 proprietors ; so that in a few years valuable and extensive cinchona 

 plantations will be thorouglily established in the island. 



These cinchona plantations in Jamaica wiil probably remain for 

 many years the only successful cinchona plantations in the New 

 World. No cinchona can be grown in any portion of the United 

 States territory — which is entirely outside the tropics. In all the 

 other British West India Islands, there is no suitable land, as far 

 as I am aware, possessing the requisite elevation, soil and climate for 

 the successful cultivation of cinchona. It is very unlikely to thrive 

 in either British Honduras or British Guiana, and although much has 

 been written and said respecting the systematic cultivation of 

 cinchona, in its natural home in the South American States, I have. 



