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ct, or armor of plates, scales, etc.; or with that which corresponds to this, as horny or bony plates, hard, callous skin, etc.

riod are well developed in the Catskill mountains, and extend south and west under the Carboniferous formation. See the Diagram under Geology.

ion found in the caves of Europe, believed to be a large variety of the African lion. -- Bone cave. See under Bone.

A group of ruminants whose horns are hollow, and planted on a bony process of the front, as the ox.

Bond of union; that which unites firmly, as persons in friendship, or men in society. "The cement of our love."

nvent, or a community, in opposition to an anchoret, or hermit, who lives in solitude. Gibbon.

The central, or one of the central, bones of the carpus or or tarsus. In the tarsus of man it is represented by the navicular.

es from the exterior of a thing toward its center; as, the centripetal calcification of a bone. R. Owen. Centripetal force (Mech.), a force whose direction is towards a center, as in case of a planet revolving round the sun, the center of the system, See Centrifugal force, under Centrifugal. -- Centripetal impression…

The anterior end of the notochord and its bony sheath in the base of cartilaginous crania.

Pertaining to the bone, or cartilage, below the epibranchial in a branchial arch. -- n.

Pertaining to the bone, or carts, large, below the epihyal in the hyoid arch. -- n.

European Megalosaurus. The animal was nearly twenty feet in length, and the skull bears a bony horn core on the united nasal bones. See Illustration in Appendix.

The native carbonate of lead.

Native lead carbonate; a mineral occurring in colorless, white, or yellowish transparent crystals, with an adamantine, also massive and compact.

rk of the genus Cestracion, and of related genera. The posterior teeth form a pavement of bony plates for crushing shellfish. Most of the species are extinct. The Port Jackson shark and a similar one found in California are living examples.

the tail flukes are horizontal. There are two living suborders: (a) The Mysticete or whalebone whales, having no true teeth after birth, but with a series of plates of whalebone [see Baleen.] hanging down from the upper jaw on each side, thus making a strainer, through which they receive the small animals upon which th…

An oily hydrocarbon, C16H32, of the ethylene series, obtained from spermaceti.

That which confines, fetters, or secures, as a chain; a bond; as, the chains of habit. Driven down To chains of darkness and the undying worm. Milton.

earthy substance, of a white, grayish, or yellowish white color, consisting of calcium carbonate, and having the same composition as common limestone.

Native iron carbonate; -- usually called siderite.