25 2 
The amount of rubber produced is, however, apparently apt io 
vary according to locality, for it is stated that in Assam the form 
which grows- in the plains produces but little rubber, though 
much latex is produced, while that on the hills produces much 
rubber and little water. 
How the plant will work out in different parts of the Peninsula 
we cannot judge at present. It undoubtedly grows very well in 
the low lands round Klang, in Selangor, in Perak and the Bindings 
and elsewhere. It grows very poorly in the stiff clays of Singa- 
pore, and here seems to be very liable to the attacks of fungi, es- 
pecially of a leaf fungus which causes a fall of the leaves. ' It 
may be doubted that it will give the same return as Para rubber, 
but I saw an excellent sample obtained from some three-j^ear old 
trees grown by a Chinaman in Malacca. The product is usually 
considered inferior, and the amount, as has been said, is remark- 
ably variable. Next to Para rubber, however, Rambong is prob- 
ably the best rubber to cultivate in the Straits. It is already 
being cultivated successfully in Sumatra, the produce being 
shipped to Penang in fairly large quantities. In i 8 g?, 4,650 
piculs were shipped from Penang, but this includes some wild 
Rambong from Perak, and probably also Sumatra. 
