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int, showing a concave surface above. This structure is characteristic of certain igneous rocks, as basalt, and is due to contraction in cooling.

closely packed together; -- said of a kind of structure sometimes observed in sedimentary rocks.

Composed of stones, pebbles, or fragments of rocks, cemented together.

A peculiar toothlike fossil of many forms, found especially in carboniferous rocks. Such fossils are supposed by some to be the teeth of marsipobranch fishes, but they are probably the jaws of annelids.

ious to the eye; easy to be seen; plainly visible; manifest; attracting the eye. It was a rock Of alabaster, piled up to the clouds, Conspicious far. Milton. Conspicious by her veil and hood, Signing the cross, the abbess stood. Sir W. Scott.

The plane between two adjacent bodies of dissimilar rock. Raymond. Contact level, a delicate level so pivoted as to tilt when two parts of a measuring apparatus come into contact with each other; -- used in precise determinations of lengths and in the accurate graduation of instruments.

lic lodes. It consist in sinking small pits through the superficial deposits to the solid rock, and then driving from one pit to another across the direction of the vein, in such manner as to cross all the veins between the two pits.

The rock through which a vein runs. Conclusion to the country. See under Conclusion. -- To put, or throw, one's self upon the country, to appeal to one's constituents; to stand trial before a jury.

A bed or cot for a baby, oscillating on rockers or swinginng on pivots; hence, the place of origin, or in which anything is nurtured or protected in the earlier period of existence; as, a cradle of crime; the cradle of liberty. The cradle that received thee at thy birth. Cowper. No sooner was I crept out of my cradle B…

A steep, rugged rock; a cough, broken cliff, or point of a rock, on a ledge. From crag to crag the signal fiew. Sir W. Scott.

Full of crags; rugged with projecting points of rocks; as, the craggy side of a mountain. "The craggy ledge." Tennyson.

One accustomed to climb rocks or crags; esp., one who makes a business of climbing the cliffs overhanging the sea to get the eggs of sea birds or the birds themselves.

A large basket or hamper of wickerwork, used for the transportation of china, crockery, and similar wares.

Crockets. See Crocket.

An Algonquin tribe of Indians, inhabiting a large part of British America east of the Rocky Mountains and south of Hudson's Bay.

Having the qualities of chalk;abounding with chalk; chalky; as, cretaceous rocks and formations. See Chalk. Cretaceous acid, an old name for carbonic acid. -- Cretaceous formation (Geol.), the series of strata of various kinds, including beds of chalk, green sand, etc., formed in the Cretaceous period; -- called also…

evices; as, a creviced structure for storing ears of corn. Trickling through the creviced rock. J. Cunningham.

a low tone; to murmur softly. Here an old grandmother was crooning over a sick child, and rocking it to and fro. Dickens.

A crock; a jar. [Obs.] Chauser.

Very foul and crusted bottles. Swift. Their minds are crusted over, like diamonds in the rock. Felton.