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irrigation

(Encyclopedia) irrigation, in agriculture, artificial watering of the land. Although used chiefly in regions with annual rainfall of less than 20 in. (51 cm), it is also used in wetter areas to grow…

evaporimeter

(Encyclopedia) evaporimeterevaporimeterĭvăpˌərĭmˈətər [key], instrument that measures the rate of evaporation of water into the atmosphere, sometimes called an atmometer. Evaporimeters are of two…

hydrotherapy

(Encyclopedia) hydrotherapy, use of water in the treatment of illness or injury. Although the medicinal and hygienic value of water was recognized by the early Greeks, hydrotherapy attained its…

William Waters BOYCE, Congress, SC (1818-1890)

BOYCE William Waters , a Representative from South Carolina; born in Charleston, S.C., October 24, 1818; attended South Carolina College (now the University of South Carolina) at Columbia and the…

Russell Judson WATERS, Congress, CA (1843-1911)

WATERS Russell Judson , a Representative from California; born in Halifax, Windham County, Vt., June 6, 1843; moved with his parents to Franklin County, Mass., in 1846; attended the district…

drainage, in mining

(Encyclopedia) drainage, in mining, removal of water seeping into shafts and other underground mine workings from the surrounding ground. Unless seeping water is removed continually, it may endanger…

hydrate

(Encyclopedia) hydratehydratehīˈdrāt [key], chemical compound that contains water. A common hydrate is the familiar blue vitriol, a crystalline form of cupric sulfate. Chemically, it is cupric…