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New Siberian Islands

(Encyclopedia)New Siberian Islands, Rus. Novosibirskiye Ostrova, archipelago, c.10,900 sq mi (28,200 sq km), N Siberian Russia, in the Arctic Ocean between the Laptev and East Siberian seas, part of the Sakha Repub...

Waco

(Encyclopedia)Waco wāˈkō [key], city (1990 pop. 103,590), seat of McLennan co., E central Tex., on the Brazos River, just below the mouth of the Bosque; inc. 1856. It is a rail junction and a trading, shipping, ...

Duveen, Joseph, 1st Baron Duveen of Millbank

(Encyclopedia)Duveen, Joseph, 1st Baron Duveen of Millbank dyo͝ovēnˈ, do͞o– [key], 1869–1939, English art dealer, b. Hull. Beginning his career (1886) in his father's antiques firm, Duveen Brothers, he soon...

limestone

(Encyclopedia)limestone, sedimentary rock wholly or in large part composed of calcium carbonate. It is ordinarily white but may be colored by impurities, iron oxide making it brown, yellow, or red and carbon making...

Adelson, Sheldon Gary

(Encyclopedia) Adelson, Sheldon Gary, 1933-2021, American casino owner and political donor, b. Boston, MA. Adelson was born to poor, Jewish, Eastern European immigrants. After attending, but not comple...

Watkins, Carleton Eugene

(Encyclopedia)Watkins, Carleton Eugene, 1829–1916, America's premier 19th-century landscape photographer, b. Oneonta, N.Y. Watkins created images that helped define the American West for his contemporaries and th...

stalactite and stalagmite

(Encyclopedia)stalactite stəlăgˈmīt [key], mineral forms often found in caves; sometimes collectively called dripstone. A stalactite is an icicle-shaped mass of calcite attached to the roof of a limestone caver...

Yellowstone National Park

(Encyclopedia)Yellowstone National Park, 2,219,791 acres (899,015 hectares), the world's first national park (est. 1872), NW Wyo., extending into Montana and Idaho. It lies mainly on a broad plateau in the Rocky Mt...

cave

(Encyclopedia)cave, a cavity in the earth's surface usually large enough for a person to enter. Caves may be formed by the chemical and mechanical action of a stream upon soluble or soft rock, of rainwater seeping ...
 

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