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yellow fever

(Encyclopedia)yellow fever, acute infectious disease endemic in tropical Africa and many areas of South and Central America. Yellow fever is caused by a virus transmitted by the bite of the female Aedes aegypti mos...

Fort Clatsop National Memorial

(Encyclopedia)Fort Clatsop National Memorial, now part of Lewis and Clark National Historical Park. See National Parks and Monuments (table) ...

Nüsslein-Volhard, Christiane

(Encyclopedia)Nüsslein-Volhard, Christiane,1942–, German biologist and geneticist, Ph.D. Univ. of Tübingen, 1973. Since 1985 she has been director of the genetics division of the Max Planck Institute for Develo...

Wieschaus, Eric Francis

(Encyclopedia)Wieschaus, Eric Francis, 1947–, American biologist and geneticist, b. South Bend, Ind., Ph.D. Yale 1974. He was a researcher at the European Molecular Biology Laboratory in Heidelberg, Germany, from...

Spenser, Edmund

(Encyclopedia)Spenser, Edmund, 1552?–1599, English poet, b. London. He was the friend of men eminent in literature and at court, including Gabriel Harvey, Sir Philip Sidney, Sir Walter Raleigh, and Robert Sidney,...

Odets, Clifford

(Encyclopedia)Odets, Clifford ōdĕtsˈ [key], 1906–63, American dramatist, b. Philadelphia. After graduating from high school he became an actor and in 1931 joined the Group Theatre. Turning his attention from a...

Sequoyah

(Encyclopedia)Sequoyah sĭkwoiˈə [key], c.1766–1843, Native North American leader, creator of the Cherokee syllabary, b. Loudon co., Tenn. Although many historians believe that he was the son of a Cherokee woma...

holiday

(Encyclopedia)holiday [altered from holy day], day set aside for the commemoration of an important event. Holidays are often accompanied by public ceremonies, such as parades and carnivals, and by religious observa...

Macdonough, Thomas

(Encyclopedia)Macdonough, Thomas məkdŏnˈə [key], 1783–1825, American naval officer, b. New Castle co., Del. In the Tripolitan War he took part in the burning of the captured Philadelphia and the attack on the...

saccharin

(Encyclopedia)saccharin săkˈərĭn [key], C7H5NSO3, white, crystalline, aromatic compound. It was discovered accidentally by I. Remsen and C. Fahlberg in 1879. Pure saccharin tastes several hundred times as sweet...