From the earliest notices the production of coir, the collection of cowries, and the weaving of excellent textures on these islands have been noted.
The chief exports of the islands besides coir and cowries (a decreasing trade) are coco-nuts, copra, tortoise-shell and dried bonito-fish.
Brjod (to speak), pronounced jod, is cognate to the Burmese pyauhtso, the Garo brot, &c. The word for " cowries " is gron- in written, rum- in spoken Tibetan, and grwa in written Burmese; slop (to learn), spoken lop, is slop in Melam.
Cowries (moo =3d.) are still occasionally employed, and on the coast, accounts are sometimes kept in gallons of palm oil.