Geothermometer

[Gr.ge, the earth, and Eng. thermometer. ( Phys.) An instrument for measuring the temperature of the earth at different depths, as in wells or mines, and for determining its rate of increase with the depth. Ge'pidæ. ( Hist .) A Germanic tribe, originally inhabiting the shores of the Baltic, expelled the Burgundians from Northern Germany in the middle of the 3d century, and invaded the Roman territory in 269. Having been conquered by the Huns late in the 4th century, they regained their independence on the death of Attila in 453, but are not mentioned after 566 or 567. 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errors][subsumed][subsumed][merged small][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][subsumed][merged small][subsumed] The American Dictionary and Cyclopedia IMG:content-0351.png:[graphic] IMG:content-0352.png:[ocr errors] IMG:content-0353.png:[ocr errors] , Geranium &, Pelargonium; e, Herb Robert (Geranium Robertianum.) means of their styles to an elongated axis or carpophore, from which they separate, when ripe, from below upward, by the curling up of the styles. Seeds, one in each carpel, exalbuminous; embryo convoluted. Some plants of this order are distributed over various parts of the world, but the greater number are found at the Cape of Good Hope. There are four genera, and about 500 species, many very remarkable for the beauty of their flowers. Gerania'les, n . pl . ( Bot .) An alliance of plants, subcla Hypogynous exogens. DIAG. Mono dichlamydeous, symmetrical flowers; axile placentæ; imbricated calyx; twisted corolla; definite stamens; and an embryo with little or no albumen. The G. are divided into the five orders; Linaceæ, Chlænacea, Oxalidaceæ , Balsami naceæ, and Geraniacea. Geranium, (je-rā'ne-um,) n. (Bot.) The Crane's-bill, the typical genus of the order Geraniacea . Many species are American plants, being generally mere weeds of no interest, while others are extremely showy border-flowers. The favorite plants called Geraniums do not belong to this genus, but to the genus Pelargo nium, q. v. The Stinking Crane's-bill, or Herb Robert, Geranium Robertianum, a common weed in dry, rocky places, with a diffuse habit, deeply divided leaves, and small flowers, has been used medicinally as an astringent, and in nephritic complaints. The Spotted Geranium, G. maculatum , with flowers of considerable beauty, is the most valuable medicinal plant of the genus. It is found throughout the U. States and Canada. Geranium, (Oil of,) n. ( Perfum .) An e ential oil, known in India as Roshé , or Reosé oil, and in trade as Turkish E ence, Oil of Geranium, or Oil of Ginger-gra . It is obtained from a plant of the genus Andropogon, believed to be the Andropogon Calamus Aromatic us. This oil is employed by the Turks to adulterate attar of roses, q. v., and is considered by some to be identical with the Gra -oil of Nemaur. Ge/rar. ( Script .) An ancient town or place of the Philistines in the times of Abraham and Isaac, in the S. of Judah, not far from Gaza.