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Bartlett, John

(Encyclopedia)Bartlett, John, 1820–1905, American compiler and publisher, b. Plymouth, Mass. While he worked in his university book store in Cambridge, he compiled the invaluable Familiar Quotations (1855), which...

Wittig, Georg

(Encyclopedia)Wittig, Georg, 1897–1987, German chemist, Ph.D. Univ. of Marburg, 1926. During his career, Wittig was a professor at the universities of Braunschweig, Freiburg, Tübingen, and Heidelberg. He shared ...

bitumen

(Encyclopedia)bitumen bĭtyo͞oˈmən [key] a generic term referring to flammable, brown or black mixtures of tarlike hydrocarbons, derived naturally or by distillation from petroleum. It can be in the form of a vi...

land art

(Encyclopedia)land art or earthworks, art form developed in the late 1960s and early 70s by Robert Smithson, Robert Morris, Michael Heizer, and others, in which the artist employs the elements of nature in situ or ...

Reid, Whitelaw

(Encyclopedia)Reid, Whitelaw, 1837–1912, American journalist and diplomat, b. near Xenia, Ohio. His distinguished correspondence during the Civil War for the Cincinnati Gazette led Horace Greeley to make him mana...

grizzly bear

(Encyclopedia)grizzly bear or grizzly, large, powerful North American brown bear, characterized by gray-streaked, or grizzled, fur. Grizzlies are 6 to 8 ft (180–250 cm) long, stand 31⁄2 to 4 ft (105–120 cm) a...

sherry

(Encyclopedia)sherry [from Jérez], naturally dry fortified wine, pale amber to brown in tint. The term sherry originally referred to wines made from grapes grown in the region of Jérez de la Frontera, Andalusia, ...

yak

(Encyclopedia)yak, bovine mammal, Bos grunniens, of the Tibet region of China and adjacent areas. It is oxlike in build, with short, thick legs, humped shoulders, large upcurved horns, and a thick coat that hangs d...

Slater, Samuel

(Encyclopedia)Slater, Samuel, 1768–1835, American pioneer in the cotton textile industry, b. Derbyshire, England. As an apprentice and later a mill supervisor, he gained a thorough knowledge of all the cotton-man...

bead test

(Encyclopedia)bead test, test used in the identification of certain metals. Some metallic ions that cannot be identified by a flame test are identified by a bead test. The test can also be used to confirm the resul...