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Garretson, James Edmund

(Encyclopedia)Garretson, James Edmund, 1828–95, American pioneer in oral surgery, b. Wilmington, Del., M.D. Univ. of Pennsylvania, 1859. From 1874 he taught at Philadelphia Dental College (now part of Temple Univ...

Gilbert, William

(Encyclopedia)Gilbert, William, 1544–1603, English scientist and physician. He studied medicine at Cambridge (M.D., 1569), where he was elected a Fellow of St. John's College, and set up practice in London, becom...

weightlessness

(Encyclopedia)weightlessness, the absence of any observable effects of gravitation. This condition is experienced by an observer when he and his immediate surroundings are allowed to move freely in the local gravit...

Heilongjiang

(Encyclopedia)Heilongjiang or Heilungkiang both: hāˈlo͝ongˈjyängˈ [key] [Chin.,=black dragon rive...

buckwheat

(Encyclopedia)buckwheat, common name for certain members of the Polygonaceae, a family of herbs and shrubs found chiefly in north temperate areas and having a characteristic pungent juice containing oxalic acid. Sp...

Adenauer, Konrad

(Encyclopedia)Adenauer, Konrad kônˈrät äˈdənouˌər [key], 1876–1967, West German chancellor. A lawyer and a member of the Catholic Center party, he was lord mayor of Cologne and a member of the provincial ...

Pratt, Matthew

(Encyclopedia)Pratt, Matthew, 1734–1805, American portrait painter, b. Philadelphia. After he was an apprentice to his uncle, a painter in Philadelphia, he practiced portrait painting and then studied under Benja...

Rodney, George Brydges Rodney, 1st Baron

(Encyclopedia)Rodney, George Brydges Rodney, 1st Baron, 1719–92, British admiral. He served with distinction in the Seven Years War (1757–63), his most notable achievement being the capture (1762) of Martinique...

Berlin Wall

(Encyclopedia)Berlin Wall, 1961–89, a barrier first erected in Aug., 1961, by the East German government along the border between East and West Berlin, and later along the entire border between East Germany and W...

Kemper, Reuben

(Encyclopedia)Kemper, Reuben, d. 1827, American adventurer, b. Virginia. With his brothers Nathan and Samuel he settled c.1800 in Feliciana, just above Baton Rouge, in West Florida, then Spanish territory. Expelled...