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Peruvian bark. 



§ 1. The sorts of Peravian bark mostly planted in 

 the isle of Java are the Ledgeriana, the Officinales, and 

 the Succirubra; especially the Ledgeriana, because of its 

 great intrinsic value. This value is infei'ior in other sorts, 

 which are however greatly appreciated for their pharma- 

 ceutic bark. The demand for this bark being limited and 

 the planters fearing to keep an article without value in 

 case of overproduction, these trees are only planted in 

 small numbers. The same is true of the Officinales, as it 

 grows slowly and best in high regions, which are avoided, 

 however, being less appropriate for the Ledgeriana. 



§ 2. The favourite sort is consequently the Ledge- 

 riana. However, as this tree does not grow so quickly as 

 the Succirubra, because of its being more susceptible to 

 disease, many planters have been endeavouring of late years 

 to graft the Ledgeriana on the Succirubra and with success, 

 for experience has proved that the trunk below the graft 

 effects but very little the value of the Ledgeriana. 



The grafting is done in the open air, generally after 



