Species of Palaquium, the genus from which, in the Indian Archipelago, the best gutta-percha is obtained, occur on the hills, and from their cultivation there might in time be obtained a large revenue independently of European labour.
Similar products are also formed by heating gutta-percha which closely resembles caoutchouc in its chemical structure.
The hydrocarbon of gutta-percha yields similar results and is therefore closely related to caoutchouc.
In this respect it differs from gutta-percha, which, like caoutchouc, is derived from the latices of certain plants.
Hemiterpenes The best known is Isoprene, C 5 H 8, which is obtained on distilling caoutchouc or gutta-percha.
Forest products - gums and resins of various sorts, such as gutta-percha - are valuable articles of export.
Mixture of gutta-percha, rosin and Stockholm tar).