(Encyclopedia) Slave, river, c.310 mi (500 km) long, Northwest Territories, Canada. It comprises the middle sections of the Mackenzie River system. The river channels the waters of Lake Athabasca and…
(Encyclopedia) Aguascalientes Aguascalientes äˌgwäskälyānˈtās, äˌwäs– [key] [Span.,=hot waters], state, 2,007 sq mi (5,200 sq km), central Mexico, on the Anáhuac…
(Encyclopedia) WaukeshaWaukeshawôˈkĭshô [key], city (1990 pop. 56,958), seat of Waukesha co., SE Wis., on the Fox River; inc. 1896. It is an industrial center in a dairy area. Waukesha was a stop on…
Limiting Reactant ProblemsChemistryStoichiometryStoichiometry: Fun to Say, Fun to Do!Simple Stoichiometry CalculationsLimiting Reactant ProblemsGas Stoichiometry Now that you're a pro at simple…
(Encyclopedia) Mortimer, Edmund de, 3d earl of March and 1st earl of UlsterMortimer, Edmund de, 3d earl of March and 1st earl of Ulsterdə môrˈtĭmər [key], 1351–81, English nobleman. He succeeded (…
(Encyclopedia) Mortimer, Edmund de, 5th earl of March and 3d earl of Ulster, 1391–1425, English nobleman, son of Roger de Mortimer, 4th earl of March. He succeeded (1398) his father not only as earl…
(Encyclopedia) Matthew of Paris or Matthew Paris, d. 1259, English historian, a monk of St. Albans. He became the historiographer of the convent after the death (c.1236) of Roger of Wendover. The…
(Encyclopedia) Constance, 1154–98, Holy Roman empress, wife of Holy Roman Emperor Henry VI; daughter of King Roger II of Sicily. She was named heiress of Sicily by her nephew King William II. On his…
(Encyclopedia) Clarke, John, 1609–76, one of the founders of Rhode Island, b. Westhorpe, Suffolk, England. He emigrated to Boston in 1637 and shortly thereafter joined Anne Hutchinson (with whom he…