Bits of porphyry, syenite, and similar rocks are used for making labrets, and large pebbles are used as hammers and net sinkers. They have also a little iron pyrites, both massive and in the form of spherical concretions. The latter were said to come from the mouth of the Colville, and are believed by the natives to have fallen from the sky. Two other kinds of stone are brought from the neighborhood of Nu´ɐsŭknan, partly, it appears, as curiosities, and partly with some ill defined mystical notions. The first are botryoidal masses of brown limonite, resembling bog iron ore, and the other sort curious concretions, looking like the familiar “clay stones,” but very heavy, and apparently containing a great deal of iron pyrites. White gypsum, used for rubbing the flesh side of deerskins, is obtained on the seashore at a place called Tû´tyĕ, “one sleep” east from Point Barrow. Bituminous coal, alu´a, is well known, though not used for fuel. Many small fragments, which come perhaps from the vein at Cape Beaufort,[N96] are picked up on the beach. Shaly, very bituminous coal, broken into small square fragments, is rather abundant on the bars of Kulugrua, whence specimens were brought by Capt. Herendeen. A native of Wainwright Inlet gave us to understand that coal existed in a regular vein near that place, and told a story of a burning hill in that region. This may be a coal bed on fire, or possibly “smoking cliffs,” like those seen by the _Investigator_ in Franklin Bay.[N97] We also heard a story of a lake of tar or bitumen, ádngun, said to be situated on an island a day’s sail east of the point. Blacklead, mĭ´ñun, and red ocher are abundant and used as pigments, but we did not learn where they were obtained. Pieces of amber are sometimes found on the beach and are carried as amulets or (rarely) made into beads. Amber is called aúmɐ, a word that in other Eskimo dialects, and probably in this also, means “a live coal.” Its application to a lump of amber is quite a striking figure of speech. [Footnote N96: Hooper found coal on the beach at Nuwŭk in 1849, showing that this coal has not necessarily been thrown over from ships. Tents of the Tuski, p. 221.] [Footnote N97: Discovery of the Northwest Passage, p. 100.] CULTURE. MEANS OF SUBSISTENCE. FOOD.