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Huila, Nevado del

(Encyclopedia)Huila, Nevado del nāväˈdō dĕl hwēˈlä [key], snow-capped volcanic mountain, 17,594 ft (5,364 m) high, on the Huila-Tolima-Cauca dept. border, S central Colombia, in the N Andes. Located c.50 mi...

Douglas, George

(Encyclopedia)Douglas, George, pseud. of George Douglas Brown, 1869–1902, English novelist, b. Scotland. His reputation rests on his single novel, The House with the Green Shutters (1901), a somber story of Scott...

Maathai, Wangari Muta

(Encyclopedia)Maathai, Wangari Muta wän-gäˈrē mātīˈ [key], 1940–2011, Kenyan environmental...

jasper ware

(Encyclopedia)jasper ware, kind of Wedgwood pottery in green, blue, lilac, and other colors, with characteristic Greek reliefs and designs. ...

color

(Encyclopedia)color, effect produced on the eye and its associated nerves by light waves of different wavelength or frequency. Light transmitted from an object to the eye stimulates the different color cones of the...

Kenya, Mount

(Encyclopedia)Kenya, Mount, or Mount Kirinyaga, extinct volcano, central Kenya, just south of the equator. Its highest peak, Batian, reaches 17,058 ft (5,199 m), making Mt. Kenya the highest mountain in Africa afte...

Campbell, Robert, American fur trader and merchant

(Encyclopedia)Campbell, Robert, 1804–79, American fur trader and merchant, one of the mountain men, b. Ireland. He came to the United States c.1824. Having been advised to lead an outdoor life because of a lung a...

Billings

(Encyclopedia)Billings, city (2020 pop. 117,116), seat of Yellowstone co., S Mont., on the Yellowstone River, in a valley surrounded by seven mountain ranges; inc. as...

Gilbert, Grove Karl

(Encyclopedia)Gilbert, Grove Karl, 1843–1918, American geologist, b. Rochester, N.Y., grad. Univ. of Rochester, 1862. When the U.S. Geological Survey was created in the Dept. of the Interior in 1879 (to replace f...

emerald

(Encyclopedia)emerald, the green variety of beryl, of which aquamarine is the blue variety. Chemically, it is a beryllium-aluminum silicate whose color is due to small quantities of chromium compounds. The emerald ...