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Mutis, José Celestino

(Encyclopedia)Mutis, José Celestino hōsāˈ thālĕstēˈnō mo͞oˈtēs [key], 1732–1808, Spanish naturalist and plant explorer. One of Linnaeus' first disciples in Spain, he went to South America and settled ...

Mullis, Kary Banks

(Encyclopedia)Mullis, Kary Banks, 1944–2019, American biochemist, b. Lenoir, N.C., Ph.D. Univ. of California, Berkeley, 1972. Mullis was a researcher with Cetus Corp., Emeryville, Calif., from 1979 to 1986 and wi...

nursery school

(Encyclopedia)nursery school, educational institution for children from two to four years of age. It is distinguishable from a day nursery in that it serves children of both working and nonworking parents, rarely r...

Arnold, Frances Hamilton

(Encyclopedia)Arnold, Frances Hamilton, 1956–, American chemical engineer, b. Edgewood, Pa., Ph.D. Univ. of California, Berkeley, 1985. Arnold has been a professor at the California Institute of Technology since ...

Lydgate, John

(Encyclopedia)Lydgate, John lĭdˈgāt [key], c.1370–c.1450, English poet, a monk of Bury St. Edmunds. A professed disciple of Chaucer, he was one of the most influential, voluminous, and versatile writers of the...

Mesa Verde National Park

(Encyclopedia)Mesa Verde National Park māˌsə vûrdˈ, vûrˈdē [key], 52,122 acres (21,109 hectares), SW Colorado; est. 1906. Set amid forested canyons and flat mesas, the park includes the most notable and bes...

Tubman, William Vacanarat Shadrach

(Encyclopedia)Tubman, William Vacanarat Shadrach, 1895–1971, president of Liberia (1944–71). As a young man he was a lawyer, a collector of internal revenue, a teacher, and an officer of the Liberian militia. H...

Yazoo

(Encyclopedia)Yazoo yăzˈo͞o [key], river, 188 mi (303 km) long, formed in W central Miss. by the confluence of the Tallahatchie and Yalobusha rivers. Prevented by natural levees from joining the Mississippi Rive...

Sverdrup, Otto

(Encyclopedia)Sverdrup, Otto svĕrˈdro͝op [key], 1855–1930, Norwegian arctic explorer. A companion of Fridtjof Nansen on the voyage across Greenland in 1888 and on Nansen's later (1893–96) polar expedition, ...

Tabor, Horace Austin Warner

(Encyclopedia)Tabor, Horace Austin Warner tāˈbər [key], 1830–99, American prospector, known as Silver Dollar Tabor, b. Holland, Vt. From the Matchless Mine at Leadville, Colo., he gained tremendous wealth by m...