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Clay, Lucius DuBignon
(Encyclopedia)Clay, Lucius DuBignon dəbĭnˈyən, dübēnyôNˈ [key], 1897–1978, American general, b. Marietta, Ga. A graduate of West Point and an engineering officer, he held many army administrative posts an...Potteries, the
(Encyclopedia)Potteries, the, area, c.9 mi (15 km) long and 3 mi (4.8 km) wide, Staffordshire, W central England, extending northwest-southeast in the upper Trent valley. The area includes Stoke-on-Trent and part o...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. ...clay pan
(Encyclopedia)clay pan: see hardpan.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...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, ...hardpan
(Encyclopedia)hardpan, condition of the soil or subsoil in which the soil grains become cemented together by such bonding agents as iron oxide and calcium carbonate, forming a hard, impervious mass. It is disadvant...Browse by Subject
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