Monday, April 04, 2005

Draft Animal

Any domesticated animal used in drawing heavy loads. Draft animals were in common use in Mesopotamia before 3000 BC for farm work and for pulling wheeled vehicles. Their use spread to the rest of the world over the following 2,500 years. While cattle, usually in teams, have been used most often as draft animals, horses and donkeys have supplanted them in many areas. Some horses—such

Saturday, April 02, 2005

Calaverite

A gold telluride mineral (AuTe2) that is a member of the krennerite group of sulfides and perhaps a structurally altered form (paramorph) of krennerite (q.v.); it generally contains some silver replacing gold. Calaverite is most commonly found in veins that have formed at low temperatures, as in sites at Kalgoorlie, Australia; Cripple Creek, Colo.; and Calaveras county, Calif.,

Wednesday, March 30, 2005

China, Mineral resources

China is well endowed with mineral resources, the most important of which is coal. Although deposits are widely scattered (some coal is found in every province), most of the total is located in the northern part of the country. The province of Shansi, in fact, is thought to contain about half of the total; other important coal-bearing provinces include Heilungkiang, Liaoning,

Monday, March 28, 2005

Vreeland, Diana Dalziel

Diana Dalziel was the daughter of a Scottish father and an American mother in whose home the leading artists of the day were frequent guests. In 1914 the

Friday, March 25, 2005

Nordström, Ludvig Anselm

Born of a Swedish father and an English mother, Nordström was much influenced by English writers, especially Charles Dickens, Thomas Carlyle, Laurence Sterne, H.G. Wells, and G.K. Chesterton. He most delighted his readers with

Thursday, March 24, 2005

Cymophane

Variety of the gemstone chrysoberyl (q.v.).

Tuesday, March 22, 2005

Tobol River

Kazak  Tobyl  river, left-bank tributary of the Irtysh (Ertis) River, flowing through northern Kazakstan into southern Russia. After rising in the low mountains of the Torghay Plateau, it flows northeast across the West Siberian Plain past the cities of Qostanay (Kazakstan) and Kurgan (Russia) before entering the Irtysh River at Tobolsk after a course of 989 miles (1,591 km). Its main tributaries

Arnaut Daniel

A nobleman by birth, Arnaut was a highly regarded travelling troubadour. He is credited with inventing the sestina, a lyrical form of six six-line stanzas, unrhymed,