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Robert Wood Johnson Foundation

(Encyclopedia)Robert Wood Johnson Foundation, charitable organization devoted exclusively to health care issues. It was established in 1936 by Robert Wood Johnson (1893–1968), board chairman of the Johnson & ...

Linton, William James

(Encyclopedia)Linton, William James, 1812–97, Anglo-American wood engraver, author, and political reformer. In 1842 he began working as a wood engraver with John Orrin Smith and produced illustrations for the new...

Halifax, Edward Frederick Lindley Wood, 1st earl of

(Encyclopedia)Halifax, Edward Frederick Lindley Wood, 1st earl of, 1881–1959, British statesman. He entered the House of Commons (1910) as a Conservative and was president of the Board of Education (1922–24) an...

charcoal

(Encyclopedia)charcoal, substance obtained by partial burning or carbonization (destructive distillation) of organic material. It is largely pure carbon. The entry of air during the carbonization process is control...

hardwood

(Encyclopedia)hardwood: see wood.

annual rings

(Encyclopedia)annual rings, the growth layers of wood that are produced each year in the stems and roots of trees and shrubs. In climates with well-marked alternations of seasons (either cold and warm or wet and dr...

brazilwood

(Encyclopedia)brazilwood, common name for several trees of the family Leguminosae (pulse family) whose wood yields a red dye. The dye has largely been replaced by synthetic dyes for fabrics, but it is still used in...

ebony

(Encyclopedia)ebony, common name for members of the Ebenaceae, a family of trees and shrubs widely distributed in warmer climates and in the tropics. The principal genus, Diospyros, includes both ebony and persimmo...

timber

(Encyclopedia)timber: see lumber; wood. ...

clapboard

(Encyclopedia)clapboard klăbˈərd [key], board used for the exterior finish of a wood-framed building and attached horizontally to the wood studs. The word, in its original and strict use, refers to a product of ...