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ation of medicines by infusion, decoction, etc., as distinguished from those which are chemically prepared.

Electricity excited by the mutual action of certain liquids and metals; dynamical electricity.

nts, but with the same crystallization (isometric), and conforming to the same general chemical formula. The commonest color is red, the luster is vitreous, and the hardness greater than that of quartz. The dodecahedron and trapezohedron are the common forms.

To convert into gas, or an aëriform fluid, as by the application of heat, or by chemical processes.

To originate, especially by a vital or chemical process; to produce; to cause. Whatever generates a quantity of good chyle must likewise generate milk. Arbuthnot.

Origination by some process, mathematical, chemical, or vital; production; formation; as, the generation of sounds, of gases, of curves, etc.

n apparatus in which vapor or gas is formed from a liquid or solid by means of heat or chemical process, as a steam boiler, gas retort, or vessel for generating carbonic acid gas, etc.

The study of the chemical composition of, and of actual or possible chemical changes in, the crust of the earth. -- Ge`o*chem"ic*al (#), a. --Ge`o*chem"ist (#), n.

A treatise on this science. Astronomical, or Mathematical, geography treats of the earth as a planet, of its shape, its size, its lines of latitude and longitude, its zones, and the phenomena due to to the earth's diurnal and annual motions. -- Physical geography treats of the conformation of the earth's surface, of t…

methods by which its structure, features, changes, and conditions have been produced; dynamical geology. See Chart of The Geological Series.

(1885), in a silver ore (argyrodite) at Freiberg. It is a brittle, silver-white metal, chemically intermediate between the metals and nonmetals, resembles tin, and is in general identical with the predicted ekasilicon. Symbol Ge. Atomic weight 72.3.

Mica. See Mica. Woodsward. Glimmer gowk, an owl. [Prov. Eng.] Tennyson.

Glimmer; mica.

e united with cholic acid. It is also formed from gelatin by decomposition with acids. Chemically, it is amido-acetic acid. Called also glycin, and glycocin.

A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendic or syenitic gneiss. Similar va…

f gneiss; -- applied to rocks of an intermediate character between granite and gneiss, or mica slate and gneiss.

own; to emanate. The law shall go forth of Zion, and the word of the Lord from Jerusalem. Micah iv. 2. -- To go hard with, to trouble, pain, or endanger. -- To go in, to engage in; to take part. [Colloq.] -- To go in and out, to do the business of life; to live; to have free access. John x. 9. -- To go in for. [Collo…

se skin. See Goose flesh, above. -- Goose tongue (Bot.), a composite plant (Achillea ptarmica), growing wild in the British islands. -- Sea goose. (Zoöl.) See Phalarope. -- Solan goose. (Zoöl.) See Gannet.

One who has received an academical or professional degree; one who has completed the prescribed course of study in any school or institution of learning.

A crystalline, granular rock, consisting of quartz, feldspar, and mica, and usually of a whitish, grayish, or flesh-red color. It differs from gneiss in not having the mica in planes, and therefor in being destitute of a schistose structure.