India-rubber goods are manufactured, and wine is made.
The motive power was india-rubber in the condition of torsion; the propeller, a screw.
The vegetation on the western side of the island is much less dense, often appearing as scattered clumps of trees on savannah-like plains rather than continuous forest; while in the south-west, where the rainfall is very scanty, the vegetation is largely of fleshy-leaved and spiny plants - aloes and cacti (the latter introduced), with several species of Euphorbia, as well as numerous lianas, one of which (Intisy) yields india-rubber.
About 1870 india-rubber began to be exported in considerable quantities, and cattle, rubber and hides continue staple products.
There are several joints in general use for the best class of work which are formed with the aid of india-rubber rings or collars, any expansion being divided amongst the whole number of joints.
