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LEFT GLEN FALLS 333 GLOBULIN middle, 1,062 to 1,077 feet; and the high- est 1,144 to 1,155 feet. Their origin was much disputed, but according to Mac- culloch, Agassiz, Buckland, and Geikie, the roads are shore-lines of glacier lakes. GLENS FALLS, a village in Warren CO., N. Y., on the Hudson river, and on the Delaware and Hudson railroad; 54 miles N. of Albany. The river, here flowing through a ravine, descends 50 feet over a precipice 900 feet long, from which the place derives its name, and supplies enormous water power. The city has extensive marble and limestone quarries, lime works, sawmills, shirt, paper, and collar factories, and lath and planing mills. There are a Union High School, Crandell Public Library, a sum- mer school for teachers, Glens Falls Acad- emy, electric lights and street railroads, waterworks, daily and weekly news- papers, and National banks. Pop. (1910) 15,243; (1920) 16,638. GLENTILT, a valley in Perthshire, Scotland; the deep narrow glen of the Tilt, which issues from Loch Tilt and runs 16 miles S. W. receiving the larger Tarf Water and Fender Burn, until at Blair- Athole it falls into the Garry. Glentilt is classic ground to the geologist, as having furnished evidence for the Huttonian or denudation theory. GLINKA, GREGORY ANDREEVICH, a Russian author; born near Smolensk in 1774. He was in boyhood a page at the imperial court. He entered upon a distinguished career as an educator, and accompanied Alexander L's brothers on their Continental tour in 1811. His works include: "The Ancient Religion of the Slavs"; "Miscellanies in Prose and Verse" and a play, "The Daughters of Love." He died in Moscow in 1818. GLINKA, MICHAEL IVANOVITCH, a Russian composer; born in Smolensk, May 20, 1804; studied under John Field in St. Petersburg. Several songs and the operas "Life for the Czar" and "Russian and Ludmilla," all in Russian, have re- ceived high praise from critics. He died in Berlin, Feb. 15, 1857. GLINKA, SERGIUS NICOLAIE- VICH, a Russian poet; bom in Smolensk in 1774. He entered the military service and rose to the rank of major, when he retired. His literary work was devoted mainly to the young and their training. "Readings for Children," "History of Russia for the Use of Boys and Girls," and similar books, are highly esteemed. He also composed a few plays in verse, edited the "Russian Messenger," and translated Young's ''Night Thoughts." He died in Moscow in 1847. Vol. IV— Cyc— V GLISSON'S CAPSULE, in anatomy, a sheath of areolar tissue surrounding the branches of the portal vein, the hepatic artery and the hepatic duct; first pointed out by Glisson. GLOBE, a city of Arizona, the county- seat of Gila CO. It is on the Arizona Eastern railroad. In the neighborhood is the great Roosevelt reservoir, which was erected at a cost of over $8,000,000. It has a park, a library, and other public buildings. It is the center of an impor- tant mining region and its chief industry is the smelting of copper. Pop. (1910) 7,083; (1920) 7,044. GLOBE, a sphere, round solid body, which may be conceived to be generated by the revolution of a semicircle about its diameter. An artificial globe in geog- raphy and astronomy, is a globe of metal, plaster, paper, pasteboard, etc., on the surface of which is drawn a map, or representation of either the earth or the heavens, with the several circles which are conceived upon them, the for- mer being called the terrestrial globe, and the latter the celestial globe. In the terrestrial globe the wire on which it turns represents the earth's axis, the extremities of it representing the poles. The brazen meridian is a vertical circle in which the artificial globe turns, divided into 360 degrees, each degree being divided into minutes and seconds. The brass meridian receives the ends of the axis on which the globe revolves. At right angles to this, and consequently horizontal, is a broad ring of wood or brass representing the horizon; that is, the true horizon of the earth which lies in a plane containing the earth's center. GLOBE FISHES, the family Gymno' dontidfe, of which the chief genera are Diodon and Tetraodon. They are so called because by taking air into a large sac, extending over the whole of the abdo- men beneath the skin, they became nearly globular as a result of this inflation. GLOBIGERINA (-i'na) MUD, in geol- ogy, a light-colored calcareous mud in places in the Atlantic 3,000 fathoms deep, and abounding in Globigerhias, rich in siliceous sponges, and often supporting a varied fauna of Mollusca, Crustacea, and Echinoderyns. GLOBULIN, crystallin, or vitellin, an albuminous substance first obtained from the crystalline lens of the eye. Globulin thus obtained is a yellowish transparent mass, which swells up and dissolves in water; the solution becomes opaline at 73° and coagulates at 93°. It can be obtained by treating the yolks of eggs with ether, and treating the residue with