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calendula

(Encyclopedia)calendula kəlĕnˈjələ [key], any species of the genus Calendula, Old World plants of the family Asteraceae (aster family). The common calendula (C. officinalis), an annual with yellow to deep oran...

Yerkes, Robert Mearns

(Encyclopedia)Yerkes, Robert Mearns yûrˈkēz [key], 1876–1956, American psychologist, b. Bucks co., Pa., grad. Harvard (B.A. 1898; Ph.D.1902). He taught (1902–17) at Harvard, served (1919–24) on the Nationa...

Boötes

(Encyclopedia)Boötes bō-ōˈtēz [key] [Gr.,=the herdsman], northern constellation located to the SE of the Big Dipper in Ursa Major and W of Corona Borealis, the Northern Crown. It contains the brilliant orange ...

Westminster

(Encyclopedia)Westminster. 1 Residential city (1990 pop. 78,118), Orange co., S Calif.; founded 1870 as a temperance colony for Presbyterians, inc. 1957. It has several industrial parks. Naval Weapons Station Seal ...

krypton

(Encyclopedia)krypton krĭpˈtŏn [key] [Gr.,=hidden], gaseous chemical element; symbol Kr; at. no. 36; at. wt. 83.798; m.p. −156.6℃; b.p. −152.3℃; density 3.73 grams per liter at STP; valence usually 0. Kr...

mulberry

(Encyclopedia)CE5 Red mulberry, Morus rubra mulberry, common name for the Moraceae, a family of deciduous or evergreen trees and shrubs, often climbing, mostly of pantropical distribution, and characterized by ...

South African War

(Encyclopedia)South African War or Boer War, 1899–1902, war of the South African Republic (Transvaal) and the Orange Free State against Great Britain. The Boers accepted British sovereignty in exchange for a ...

Jenkins, John, American pioneer, 1728–85

(Encyclopedia)Jenkins, John, 1728–85, American pioneer, b. probably Connecticut. In 1753, Jenkins explored the Wyoming Valley for the proposed Susquehanna Company. A settlement (1762) under his leadership was des...

flame test

(Encyclopedia)flame test, test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a spectroscope. When a salt ...

flying dragon

(Encyclopedia)flying dragon, gliding lizard of the genus Draco, found in tropical forests of SE Asia. There are about 15 species. Most are about 8 in. (20 cm) long. On either side of the lizard's body are thin, win...