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Jaggar,Thomas Augustus, Jr.

(Encyclopedia)Jaggar,Thomas Augustus, Jr., 1871–1953, American geologist and volcanologist, b. Philadelphia, Ph.D. Harvard, 1897. One of the team of U.S. scientists (1902) who surveyed the eruptions in the West I...

Noriega, Manuel Antonio

(Encyclopedia)Noriega, Manuel Antonio mänwĕlˈ äntōˈnyō nôryāˈgə [key], 1934–2017, Panamanian general. Commander of the Panamanian Defense Forces from 1983, when he promoted himself to full general, Nor...

milkweed

(Encyclopedia)milkweed, common name for members of the Asclepiadaceae, a family of mostly perennial herbs and shrubs characterized by milky sap, a tuft of silky hairs attached to the seed (for wind distribution), a...

mink

(Encyclopedia)mink, semiaquatic carnivorous mammal of the genus Mustela, closely related to the weasel and highly prized for its fur. One species, Mustela vison, is found over most of North America and another, M. ...

Panama, city, Panama

(Encyclopedia)Panama, city (1990 pop. 584,803), central Panama, capital and largest city of Panama, on the Gulf of Panama. Founded in 1519 by Pedro Arias de Ávila, the city flourished in early colonial times as th...

Biddle, Nicholas, American financier

(Encyclopedia)Biddle, Nicholas, 1786–1844, American financier, b. Philadelphia. After holding important posts in the American legations in France and England, he returned to the United States in 1807 and became o...

sloth

(Encyclopedia)sloth slōth, slôth [key], arboreal mammal found in Central and South America distantly related to armadillos and anteaters. Sloths live in tropical forests, where they sleep, eat, and travel through...

snapping turtle

(Encyclopedia)snapping turtle, large, aggressive New World freshwater turtle. The two snapping turtle species are the sole members of the family Chelydridae. Snapping turtles prefer quiet, muddy water. They spend m...

sprue

(Encyclopedia)sprue, chronic disorder of the small intestine caused by impaired absorption of fat and other nutrients. Two forms of the disease exist. Tropical sprue occurs in central and northern South America, As...

sunflower

(Encyclopedia)sunflower, any plant of the genus Helianthus of the family Asteraceae (aster family), annual or perennial herbs native to the New World and common throughout the United States. In cultivation, the flo...