This caoutchouc was occasionally called Indian rubber or rubber of twist, and was no doubt one of the numerous fungi.
The perpetual use of bougies, either of catgut or of caoutchouc.
The substance is said to consist of caoutchouc, gum, and mineral oil.
The mould being then cooled in water, the caoutchouc is withdrawn.
Accordingly I had made an enormous bag out of cambric muslin, varnished with caoutchouc for protection against the weather.
They are replaced by a thin strip of caoutchouc, which is wound round in a spiral form, at the end of the ordinary wire handle.
The forests yield cinchona bark, caoutchouc, sarsaparilla, and vegetable ivory.
India rubber, or caoutchouc, is chemically a hydrocarbon, but its molecular constitution is unknown.
By spreading the liquid juice of the caoutchouc tree upon the inner surface of the goods, and allowing them to dry in the air.
Two parts of caoutchouc are dissolved in 36 parts of chloroform, and the solution is saturated with pure gaseous ammonia.