INTO THE BUTCH EAST INDIES* 343 



opinion, enables us to look for success to attempts so well under- 

 taken. 



With all that has already been said with regard to the measures 

 taken by the Government, and the direct importation from South Ame- 

 rica by Mr. Hasskarl, we think it not improper to say a little of what 

 has been done by means of botanical gardens in the Netherlands, and 

 by one private person, Mr. J. Willink, in the cause of this weighty 

 matter, although those endeavours alone would not, in our opinion, 

 have attained the object of the importation. 



From the Botanical Garden at Amsterdam the Professor Miquel sent 



several Quinquina plants to Java. The results of the sending out of a 



Quinquina-tree to Java in 1847, under the name of Cinchona alha, were 



very favourable. This tree, after having blossomed at Java, was called 



there Cascarilla Muzonensis, Wedd., or CincJioiia Muzoneusis^ Gaud. 



Mr. Teysmann occupied himself with the management of this tree, 



which is a shrub, and quickly obtained from it more than a hundred 

 plants. 



To promote the chemical investigation of this sort of Quinquina, a 

 few branches were sent to Mr. Rost van Tonningen, then apothecary 

 at the Government Laboratory at Batavia; an analysis which, on 

 account of the small quantity of bark, was not easy. There was no 

 Quinine in it, but a resin which unmistakably had the smell of Quin- 

 quina resin, and deserved further inquiry as soon as a larger quantity 

 of the bark should be obtained. He determined to make a second 

 analysis, when the trees should be older, and he should have a larger 

 quantity of the bark.* 



We remark here, that till now it is not known at what period the al- 

 kaloids develope themselves ; and we may expect that a further analysis 

 of the bark of this sort, furnished by the justly-celebrated Botanical 

 Garden of Amsterdam to Dutch East India, will afford us a new sub- 

 ject of information. We may not omit to mention that, for our che- 

 mists in Dutch East India, a new field of inquiry is opening, which 

 may be of great importance to the very difficult, and as yet imperfect, 

 chemical history of Quinquina barks. 



From the Botanical Garden at Amsterdam, besides the exports made 

 by order of the Minister, plants of Cinchona Calisaya were successively 



♦ 



Tydachrift 



ROBt 



