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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...

Hay-Herrán Treaty

(Encyclopedia)Hay-Herrán Treaty hā-ĕränˈ [key], 1903, aborted agreement between the United States and Colombia providing for U.S. control of the prospective Panama Canal and for U.S. acquisition of a canal zon...

Andes

(Encyclopedia)Andes ănˈdēz [key], mountain system, more than 5,000 mi (8,000 km) long, W South America. The ranges run generally parallel to the Pacific coast and extend from Tierra del Fuego northward, across t...

Pacific Ocean

(Encyclopedia)CE5 Pacific Ocean, largest and deepest ocean, c.70,000,000 sq mi (181,300,000 sq km), occupying about one third of the earth's surface; named by the explorer Ferdinand Magellan; the southern part i...

Atrato

(Encyclopedia)Atrato äträˈtō [key], river, c.415 mi (670 km) long, rising in the Cordillera Occidental, W Colombia. It meanders north, across the base of the Isthmus of Panama, to the Gulf of Urabá. Quibdo is ...

tagua

(Encyclopedia)tagua täˈgwä [key], fruit of the ivory, or ivory-nut, palms (Phytelephas species), which flourish in tropical America from Paraguay to Panama. The female palms bear large woody, burrlike fruits, ea...

Pan-American Highway

(Encyclopedia)Pan-American Highway, system of roads, c.16,000 mi (25,750 km) long, linking the nations of the Western Hemisphere. It was suggested at the Fifth International Conference of American States (1923) and...

Root, Elihu

(Encyclopedia)Root, Elihu, 1845–1937, American cabinet member and diplomat, b. Clinton, N.Y. Admitted to the bar in 1867, he practiced law in New York City, became prominent in Republican politics, and was appoin...

Downing, Andrew Jackson

(Encyclopedia)Downing, Andrew Jackson, 1815–52, American horticulturist, rural architect, and landscape gardener, b. Newburgh, N.Y. With his brother Charles Downing, 1802–85, he took over the operation of the n...

Hay-Pauncefote Treaties

(Encyclopedia)Hay-Pauncefote Treaties hā-pônsˈfo͝ot [key], negotiated in 1899 and 1901 by Secretary of State John Hay, for the United States, and Lord Pauncefote of Preston, British ambassador to the United Sta...