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An instrument for examining the condition of the ear.

aight lines intersecting each other, to which points are referred for the purpose of determining their relative position: they are either rectangular or oblique. -- Axes of coördinates in space, the three straight lines in which the coördinate planes intersect each other. -- Axis of a balance, that line about which i…

Lit.: Quicksilver; hence: pl. (Mining)

An apparatus for measuring or determining the proportion of nitrogen; a nitrometer.

, placed in a circular cup with a hole in its bottom, operates as a valve. -- Ball vein (Mining), a sort of iron ore, found in loose masses of a globular form, containing sparkling particles. -- Three balls, or Three golden balls, a pawnbroker's sign or shop.

An instrument for determining the delicacy of the sense of pressure. -- Bar`æs*the`si*o*met"ric, Bar`es*the`si*o*met"ric (#), a.

An instrument for determining the weight or pressure of the atmosphere, and hence for judging of the probable changes of weather, or for ascertaining the height of any ascent.

opening for passage or light. See Blank door or window, under Blank, a. -- Blind level (Mining), a level or drainage gallery which has a vertical shaft at each end, and acts as an inverted siphon. Knight. -- Blind nettle (Bot.), dead nettle. See Dead nettle, under Dead. -- Blind shell (Gunnery), a shell containing…

In mining, a rich mine or vein of silver or gold; hence, anything which is a mine of wealth or yields a large income. [Colloq. U. S.]

To cause to advance rapidly in price; as, to boom railroad or mining shares; to create a "boom" for; as to boom Mr. C. for senator. [Colloq. U. S.]

The process of breaking up or pulverizing ores. Bucking iron (Mining), a broad-faced hammer, used in bucking or breaking up ores. -- Bucking kier (Manuf.), a large circular boiler, or kier, used in bleaching. -- Bucking stool, a washing block.

l calf. (a) A stupid fellow. -- Bull mackerel (Zoöl.), the chub mackerel. -- Bull pump (Mining), a direct single-acting pumping engine, in which the steam cylinder is placed above the pump. -- Bull snake (Zoöl.), the pine snake of the United States. -- Bull stag, a castrated bull. See Stag. -- Bull wheel, a wheel,…

An instrument for determining the amount of fatty matter or butter contained in a sample of milk.

egal cap. (b) A coarse wrapping paper used for making caps to hold commodities. Cap rock (Mining), The layer of rock next overlying ore, generally of barren vein material. -- Flat cap, cap See Foolscap. -- Forage cap, the cloth undress head covering of an officer of soldier. -- Legal cap, a kind of folio writing pap…

ng with cases of conscience, of resolving questions of right or wrong in conduct, or determining the lawfulness or unlawfulness of what a man may do by rules and principles drawn from the Scriptures, from the laws of society or the church, or from equity and natural reason; the application of general moral rules to par…

e under Back, a. -- Bursting charge. (a (Mil.) The charge which bursts a shell, etc. (b (Mining) A small quantity of fine powder to secure the ignition of a charge of coarse powder in blasting. -- Charge and discharge (Equity Practice), the old mode or form of taking an account before a master in chancery. -- Charge…

One who tells fortunes by examining the hand.

The art of telling fortunes by examining the hand.

- intended to keep time with great accuracy for use an astronomical observations, in determining longitude, etc.

An instrument for measuring minute intervals of time; used in determining the velocity of projectiles, the duration of short-lived luminous phenomena, etc.