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scheelite
(Encyclopedia) scheelitescheeliteshāˈlīt, shēˈ– [key], heavy white or yellow mineral, calcium tungstate, CaWO4, crystallizing in the tetragonal system. It is found in granite pegmatites, in contact-…Beltsville swine
(Encyclopedia) Beltsville swine, two breeds of swine developed at the agricultural research center of the U.S. Department of Agriculture in Beltsville, Md. The breeds are designated Beltsville No. 1…whiting, powdery substance
(Encyclopedia) whiting, white, powdery substance, prepared by grinding chalk or some other source of calcium carbonate. When mixed with linseed oil it forms putty, and with water and several other…Nakamura, Shuji
(Encyclopedia) Nakamura, Shuji, 1954–, Japanese physicist and electronics engineer, grad. Univ. of Tokushima (D.Eng., 1994). Nakamura joined the Nichia Corporation in 1977, and it was there that he…daisy
(Encyclopedia) daisy [O.E.,=day's eye], name for several common wildflowers of the family Asteraceae (aster family). The daisy of literature, the true daisy, is Bellis perennis, called in the United…English sparrow
(Encyclopedia) English sparrow or house sparrow, small bird, Passer domesticus, common throughout most of the world. English sparrows are 4 to 7 in. (10–18 cm) long, with short, stout bills. The male…McKim, Charles Follen
(Encyclopedia) McKim, Charles Follen, 1847–1909, American architect, b. Chester co., Pa., studied (1867–70) at the École des Beaux-Arts. He was one of the founders of the firm of McKim, Mead, and…Tulsa Race Massacre of 1921
(Encyclopedia) TulsThunberga race massacre, Greenwood, Okla., May 31 to June 1, 1921. On the evening of May 31, 1921, a white lynch mob gathered…spiritual
(Encyclopedia) spiritual, a religious folk song of American origin, particularly associated with African-American Protestants of the southern United States. The African-American spiritual,…lead acetate
(Encyclopedia) lead acetate, chemical compound, a white crystalline substance with a sweetish taste. Like other lead compounds, it is very poisonous. Lead acetate is soluble in water and glycerin.…