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poison hemlock

(Encyclopedia)poison hemlock, lethally poisonous herbaceous plant (Conium maculatum) of the family Umbelliferae (parsley family). It has rank, finely divided foliage, flat-topped clusters of small white flowers, an...

ipecac

(Encyclopedia)ipecac ĭpˈĭkăk [key], drug obtained from the dried roots of a creeping shrub, Cephaelis (or Psychotria) ipecacuanha, native to Brazil but cultivated in other tropical climates. There are three var...

Driesch, Hans Adolf Eduard

(Encyclopedia)Driesch, Hans Adolf Eduard häns äˈdôlf āˈdo͞oärt drēsh [key], 1867–1941, German philosopher, b. Bad Kreuznach, grad. (zoology) Univ. of Jena, 1889. His early interest in biology was gradual...

Dworkin, Ronald Myles

(Encyclopedia)Dworkin, Ronald Myles, 1931–2013, American legal philosopher. b. Worcester, Mass. A professor at Yale (1962–75), Oxford (1969–98), New York Univ. (1975–2013), and University College London (19...

Empedocles

(Encyclopedia)Empedocles ĕmpĕdˈəklēz [key], c.495–c.435 b.c., Greek philosopher, b. Acragas (present Agrigento), Sicily. Leader of the democratic faction in his native city, he was offered the crown, which h...

Stone, Lucy

(Encyclopedia)Stone, Lucy, 1818–93, reformer and leader in the women's rights movement, b. near West Brookfield, Mass., grad. Oberlin, 1847. In 1847 she gave her first lecture on women's rights, and the following...

Bauer, Otto

(Encyclopedia)Bauer, Otto bouˈər [key], 1882–1938, Austrian politician. His Die Nationalitätenfrage und die Sozialdemokratie (1907) advocated creating nation-states to solve the Austro-Hungarian nationalities ...

Whorf, Benjamin Lee

(Encyclopedia)Whorf, Benjamin Lee hwôrf [key], 1897–1941, American linguist and anthropologist, b. Winthrop, Mass. Although he was trained in chemical engineering and worked for an insurance company, Whorf made ...

Bessemer, Sir Henry

(Encyclopedia)Bessemer, Sir Henry bĕsˈəmər [key], English engineer and inventor, b. Charleton, Hertfordshire. He made experiments to obtain stronger material for gun manufacture and discovered the basic princip...

Bell, Alexander Graham

(Encyclopedia)Bell, Alexander Graham, 1847–1922, American scientist, inventor of the telephone, b. Edinburgh, Scotland, educated at the Univ. of Edinburgh and University College, London; son of Alexander Melville...