CH. XIII] INDIARUBBER, GUTTAPERCHA, AND CAMPHOR 131 



The plant is grown in rows, and rapidly expands into a 

 small tree, which is kept more or less coppiced. At about 

 three years old it can be used for obtaining camphor ; the young 

 twigs are cut off, and are then distilled with steam, the vapour 

 being passed into a large wooden receptacle, when the camphor 

 condenses around it. About 1J% of the weight of the green 

 twigs is obtained as camphor. 



92 



