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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…

Clay, Clement Claiborne

(Encyclopedia) Clay, Clement Claiborne, 1816–82, U.S. Senator (1853–61), b. Huntsville, Ala. A legislator and then a judge in his native state, he was twice elected to the U.S. Senate and became an…

pencil

(Encyclopedia) pencil, pointed implement used in writing or drawing to apply graphite or a similar colored solid to any surface, especially paper. From prehistoric times lumps of colored earth or…

Felker, Clay S.

editor, publisher Birthplace: St. Louis Born: 10/2/25 Died: 07/1/2008 Deathplace:…

Rogers, John, American sculptor

(Encyclopedia) Rogers, John, 1829–1904, American sculptor, b. Salem, Mass. Trained as an engineer, he was forced by failing eyesight to work as a machinist. He began modeling in clay as a pastime and…

silt

(Encyclopedia) silt, predominantly quartz mineral particles that are between sand size and clay size, i.e., between 1&fslsh;16 and 1&fslsh;256 mm (1&fslsh;406 –1&fslsh;6502 in.) in…

Frelinghuysen, Theodore

(Encyclopedia) Frelinghuysen, Theodore, 1787–1862, American politician and educator, b. Franklin, N.J. Admitted to the bar in 1808, he practiced law in Newark and soon gained political prominence. As…

golem

(Encyclopedia) golemgolemgōˈləm [key] [Heb.,=an undeveloped lump], in medieval Jewish legend, an automatonlike servant made of clay and given life by means of a charm, or shem [Heb.,=name, or the…

pottery

(Encyclopedia) pottery, the baked-clay wares of the entire ceramics field. For a description of the nature of the material, see clay. American art pottery flourished in the first half of the 20th…