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The Rocky Mountain sheep (Ovis or Caprovis montana).

agnesia, generally of a black or dark green color; -- a common constituent of crystalline rocks. See Mica.

on of North America, but is now restricted to very limited districts in the region of the Rocky Mountains, and is rapidly decreasing in numbers.

eer (Cervus or Cariacus Columbianus) of California and Oregon; also, the mule deer of the Rocky Mountains. See Mule deer.

her parts of animals. See Measle, Cysticercus. -- Bladder wrack (Bot.), the common black rock weed of the seacoast (Fucus nodosus and F. vesiculosus) -- called also bladder tangle. See Wrack.

The act of rending, or attempting to rend, heavy masses of rock, earth, etc., by the explosion of gunpowder, dynamite, etc.; also, the charge used for this purpose. "Large blasts are often used." Tomlinson.

One of the divisions of Crinoidea found fossil in paleozoic rocks; pentremites. They are so named on account of their budlike form.

broad blocks connected by thin side links pivoted to the ends of the blocks, used with sprocket wheels to transmit power, as in a bicycle.

A light, loose over-garment, like a smock frock, worn especially by workingmen in France; also, a loose coat of any material, as the undress uniform coat of the United States army.

An attack upon a fortress or fortified town, with shells, hot shot, rockets, etc.; the act of throwing bombs and shot into a town or fortified place.

S. sula) related to the common gannet, and found in the West Indies, nesting on the bare rocks. It is so called on account of its apparent stupidity. The name is also sometimes applied to other species of gannets; as, S. piscator, the red-footed booby.

Of or pertaining to the bottom; fundamental; lowest; under; as, bottom rock; the bottom board of a wagon box; bottom prices. Bottom glade, a low glade or open place; a valley; a dale. Milton. -Bottom grass, grass growing on bottom lands. -- Bottom land. See 1st Bottom, n., 7.

A mass of any rock, whether rounded or not, that has been transported by natural agencies from its native bed. See Drift. Bowlder clay, the unstratified clay deposit of the Glacial or Drift epoch, often containing large numbers of bowlders. -- Bowlder wall, a wall constructed of large stones or bowlders.…

Broken and angular fragments of rocks underlying alluvial deposits. Lyell.

The root of a leguminous plant (Psoralea esculenta), found near the Rocky Mountains. It is usually oval in form, and abounds in farinaceous matter, affording sweet and palatable food.

with violence; as, to break a rope or chain; to break a seal; to break an axle; to break rocks or coal; to break a lock. Shak.

Specifically: A machine for breaking rocks, or for breaking coal at the mines; also, the building in which such a machine is placed.

A rock composed of angular fragments either of the same mineral or of different minerals, etc., united by a cement, and commonly presenting a variety of colors. Bone breccia, a breccia containing bones, usually fragmentary. -- Coin breccia, a breccia containing coins.

Steep; high. [Obs.] Grapes grow on the brant rocks so wonderfully that ye will marvel how any man dare climb up to them. Ascham.

ter used for polishing cultery; -- originally manufactured at Bristol. -- Bristol stone, rock crystal, or brilliant crystals of quartz, found in the mountain limestone near Bristol, and used in making ornaments, vases, etc. When polished, it is called Bristol diamond.