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Lister, Joseph Lister, 1st Baron

(Encyclopedia)Lister, Joseph Lister, 1st Baron, 1827–1912, English surgeon, educated at University College, London. He brought to surgery the principle of antisepsis, an outgrowth of Pasteur's theory that bacteri...

Lyon, Mary

(Encyclopedia)Lyon, Mary līˈən [key], 1797–1849, American educator, founder of Mt. Holyoke College, b. Buckland, Mass. She attended three academies in Massachusetts; later she taught at Ashfield, Mass., London...

Pi y Margall, Francisco

(Encyclopedia)Pi y Margall, Francisco fränthēsˈkō pē ē märgälˈ [key], 1824–1901, Spanish statesman and writer. A liberal journalist, he fled to France after the unsuccessful uprising of 1866 against Gen....

Place, Francis

(Encyclopedia)Place, Francis, 1771–1854, English radical reformer. A tailor for many years, he educated himself and made his shop a meeting center for radicals and reformers. He was especially active in the trade...

cantilever

(Encyclopedia)cantilever kănˈtəlēvər [key], beam supported rigidly at one end to carry a load along the free arm or at the free end. A slanting beam fixed at the base is often used to support the free end, as ...

Monroe Doctrine

(Encyclopedia)Monroe Doctrine, principle of American foreign policy enunciated in President James Monroe's message to Congress, Dec. 2, 1823. It initially called for an end to European intervention in the Americas,...

Mattei, Enrico

(Encyclopedia)Mattei, Enrico ānrēˈkō mät-tāˈ [key], 1906–62, Italian public administrator. After World War II he was given the task of dismantling the Italian Petroleum Agency, a Fascist state enterprise. ...

torsion balance

(Encyclopedia)torsion balance, instrument used to measure small forces. It is based on the principle that a wire or thread resists twisting with a force that is proportional to the stress. The torsion balance consi...

white snakeroot

(Encyclopedia)white snakeroot, North American woods perennial (Eupatorium urticifolium) of the family Asteraceae (aster family), having a flat-topped cluster of small white flowers. It is of the same genus as the b...

Duns Scotus, John

(Encyclopedia)Duns Scotus, John dŭnz skōˈtəs [key] [Lat. Scotus=Irishman or Scot], c.1266–1308, scholastic philosopher and theologian, called the Subtle Doctor. A native of Scotland, he became a Franciscan an...