Their substitute for a knife was a shell, or a bit of flint or jasper.

A shark's tooth, fixed to a piece of wood, served for an auger; a piece of coral for a file; and the skin of a sting-ray for a polisher.

Their saw was made of jagged fishes' teeth fixed on the convex edge of a piece of hard wood.

Their weapons were of a similarly rude description; their clubs and axes were headed with stone, and their lances and arrows were tipped with flint.

Fire was another agency employed by them, usually in boat-building.