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lily of the valley

(Encyclopedia) lily of the valley, common name for either of the two species of Convallaria, spring-blooming perennials of the family Liliaceae (lily family). C. majalis, the species usually in…

Ausonius

(Encyclopedia) Ausonius (Decimus Magnus Ausonius)Ausoniusôsōˈnēəs [key], c.310–c.395, Latin poet and man of letters, b. Bordeaux. He tutored Gratian, who, when he ascended the throne, made Ausonius…

IJssel

(Encyclopedia) IJsselIJsselīˈsəl [key], river, 72 mi (116 km) long, branching from the Neder Rijn (Lower Rhine) River near Arnhem, E Netherlands, and flowing N into the Ketelmeer (an arm of the…

arson

(Encyclopedia) arson, at common law, the malicious and willful burning of the house of another. Originally, it was an offense against the security of habitation rather than against property rights.…

dry rot

(Encyclopedia) dry rot, fungus disease that attacks both softwood and hardwood timber. Destruction of the cellulose causes discoloration and eventual crumbling of the wood. This frequently results in…

Hamilton, city, Canada

(Encyclopedia) Hamilton, city, S Ont., Canada, at the western end of Lake Ontario. It is situated on a narrow plain between its harbor (connected by…

Heron of Alexandria

(Encyclopedia) Heron of AlexandriaHeron of Alexandriahērˈŏn [key] or Hero, mathematician and inventor. The dates of his birth and death are unknown; conjecture places them between the 2d cent. b.c.…

Kaboré, Roch Marc Christian

(Encyclopedia) Kaboré, Roch Marc Christian, 1957–, Burkinabé political leader. Following a career in banking, he joined Blaise Compaoré's government, serving as minister of transport and…

Rotary International

(Encyclopedia) Rotary International, organization of business and professional people, founded (1905) by Paul Percy Harris, a Chicago lawyer. Beginning with one club in Chicago, it spread to other…

Schrock, Richard Royce

(Encyclopedia) Schrock, Richard Royce, 1945–, American chemist, b. Berne, Ind., Ph.D Harvard, 1971. After working for three years with the Dupont Company, he became (1972) a professor at the…