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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 ...

Triborough Bridge

(Encyclopedia)Triborough Bridge, New York City: see Robert F. Kennedy Bridge. ...

Custis-Lee Mansion

(Encyclopedia)Custis-Lee Mansion, Va.: see Arlington House, The Robert E. Lee Memorial. ...

Douglas, Sir James de, lord of Douglas

(Encyclopedia)Douglas, Sir James de, lord of Douglas, 1286?–1330, Scottish nobleman, called the Black Douglas and Douglas the Good; eldest son of William de Douglas, lord of Douglas. In the war of independence ag...

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