CAOUTCHOUC.—WOORARI. 61 
we enumerate caoutchouc, or India-rubber, opium, 
and many terrible poisons such as the Woorari, 
Upas, Strychnia, among its products,—that will be 
sufficiently manifest. Caoutchouc is derived solely 
from the milk-sap of plants: it is this singular 
substance which forms the cream observed in the 
separation of the milk into its two portions. The 
supply is derived from several different trees 
and regions of the world; and is obtained by 
cutting deep incisions into the bark, and con- 
ducting the thick and precious juice out, by 
wooden troughs, into a proper receptacle. 
The most fearful poisons known are found in 
this juice. The savage Indian well knows this 
fact, and dips his unerring arrows into the deadly 
fluid of the Mandioc, or into the deadlier com- 
pound familiar to us under the title of the Woo- 
rari poison. In the thick ancient forests of 
Java, where the step of man seldom enters, and 
where the voice of the bird and the shriek of the 
active monkey fill the air all day long with sounds 
of life, grow some of the most swift-slaying plants 
in the whole world. Even to touch the juice of 
one of them will produce rapid and dangerous 
blisters, The extracted juice of the other, when 
