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Johnson, Robert
(Encyclopedia)Johnson, Robert, 1911–38, African-American blues singer, guitarist, and songwriter, b. Hazelhurst, Miss. A sharecropper's son, he grew up absorbing the music of Delta bluesmen, learning the harmonic...Essex, Robert Devereux, 3d earl of
(Encyclopedia)Essex, Robert Devereux, 3d earl of, 1591–1646, English parliamentary general; son of Robert Devereux, 2d earl of Essex. James I restored him (1604) to the estates of his father and arranged his marr...McCormick, Joseph Medill
(Encyclopedia)McCormick, Joseph Medill: see under McCormick, Robert Sanderson. ...Blair, Robert
(Encyclopedia)Blair, Robert, 1699–1746, English poet and clergyman. His literary reputation rests solely on his didactic, blank-verse poem on death, The Grave (1743). ...indium
(Encyclopedia)indium ĭnˈdēəm [key], a metallic chemical element; symbol In; at. no. 49; at. wt. 114.818; m.p. 156.6℃; b.p. about 2,080℃; sp. gr. 7.31 at 20℃; valence +1, +2, or +3. Indium is a soft, malle...executive
(Encyclopedia)executive, one who carries out the will or plan of another person or of a group. In government, the term refers not only to the chief administrative officer but to all others who execute the laws and ...combustion
(Encyclopedia)combustion, rapid chemical reaction of two or more substances with a characteristic liberation of heat and light; it is commonly called burning. The burning of a fuel (e.g., wood, coal, oil, or natura...bismuth
(Encyclopedia)bismuth bĭzˈməth [key] [Ger. Weisse Masse=white mass], metallic chemical element; symbol Bi; at. no. 83; at. wt. 208.98040; m.p. 271.3℃; b.p. about 1,560℃; sp. gr. 9.75 at 20℃; valence +3 or ...Lynd, Helen Merrell
(Encyclopedia)Lynd, Helen Merrell: see under Lynd, Robert Staughton. ...Browse by Subject
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