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loam
(Encyclopedia)loam, soil composed of sand, silt, clay, and organic matter in evenly mixed particles of various sizes. More fertile than sandy soils, loam is not stiff and tenacious like clay soils. Its porosity all...bentonite
(Encyclopedia)bentonite bĕnˈtənītˌ [key]: see clay. ...Chesapeake Bay Bridge-Tunnel
(Encyclopedia)Chesapeake Bay Bridge-Tunnel, officially the Lucius J. Kellam, Jr. Bridge-Tunnel, 17.6 mi (28.2 km) long, across the mouth of Chesapeake Bay, E Va., connecting Cape Charles with Norfolk, Va. Opened in...clay pan
(Encyclopedia)clay pan: see hardpan.china clay
(Encyclopedia)china clay, one of the purest of the clays, composed chiefly of the mineral kaolinite usually formed when granite is changed by hydrothermal metamorphism. Usage of the terms china clay and kaolin is n...boulder clay
(Encyclopedia)boulder clay: see drift.Macomb
(Encyclopedia)Macomb, city (1990 pop. 19,952), seat of McDonough co., W Ill.; inc. as a city 1856. A trade and manufacturing center in a rich farm, clay, and coal region, the city is known for its artistic clay pro...Presidential Range
(Encyclopedia)Presidential Range, group of the White Mts., N N.H., so called from the names of its peaks. Mt. Washington (6,288 ft/1,917 m) is the highest peak in New Hampshire; a meteorological station is at the s...Cinna, d. 84 b.c., Roman politician
(Encyclopedia)Cinna (Lucius Cornelius Cinna) sĭnˈə [key], d. 84 b.c., Roman politician, consul (87 b.c.–84 b.c.), and leader of the popular party. Shortly after Cinna's first election, Sulla left Rome to fight...National Republican party
(Encyclopedia)National Republican party, in U.S. history, a short-lived political party opposed to Andrew Jackson. In the election of 1828, which Jackson won overwhelmingly, some of the supporters of his opponent, ...Browse by Subject
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