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Mackay, Lake

(Encyclopedia)Mackay, Lake məkīˈ [key], large, usually dry, saline lake, 1,829 sq mi (4,737 sq km), 65 mi (105 km) long, 40 mi (64 km) wide, W central Australia, on the border of Western Australia and the Northe...

Izalco

(Encyclopedia)Izalco ēsälˈkō [key], volcano, 7,828 ft (2,386 m) high, W El Salvador. It was sometimes called the Lighthouse of the Pacific because it was visible to 19th-century navigators off the coast. Althou...

Gass, Patrick

(Encyclopedia)Gass, Patrick, 1771–1870, American explorer, member of the Lewis and Clark expedition, b. Perry co., Pa. His journal of the trip across the continent first appeared in 1807 and was widely read. Gass...

Lepsius, Karl Richard

(Encyclopedia)Lepsius, Karl Richard rĭkhˈärt lĕpˈsēo͝os [key], 1810–84, German Egyptologist and philologist. He made an expedition (1842–45) to the Nile valley and Sudan and as a result of his excavation...

Wolcott, Roger

(Encyclopedia)Wolcott, Roger, 1679–1767, American colonial governor of Connecticut, b. Windsor, Conn. A member of an influential Connecticut family, he became a judge and was prominent in the colonial assembly an...

Royal Gorge

(Encyclopedia)Royal Gorge, 10 mi (16 km) long, narrow canyon cut by the Arkansas River, S central Colo., often called the Grand Canyon of the Arkansas. The gorge was discovered in 1806 by an expedition led by U.S. ...

Peary Land

(Encyclopedia)Peary Land, peninsula, N Greenland, extending into the Arctic Ocean. It terminates in Cape Bridgman in the northeast and Cape Morris Jesup in the north, the most northerly point of land yet discovered...

Vetch, Samuel

(Encyclopedia)Vetch, Samuel, 1668–1732, British soldier and colonial administrator, b. Scotland. He settled in Albany, N.Y., in 1699 and became a trader with the Native Americans. Author of a plan to capture Fren...

jet stream

(Encyclopedia)jet stream, narrow, swift currents or tubes of air found at heights ranging from 7 to 8 mi (11.3–12.9 km) above the surface of the earth. They are caused by great temperature differences between adj...

White Sea

(Encyclopedia)White Sea, Rus. Beloye More, c.36,680 sq mi (95,000 sq km), NW European Russia, an inlet of the Barents Sea. Its northern section, opening into the Barents Sea between the Kola and Kanin peninsulas, i...