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Branner, John Casper

(Encyclopedia)Branner, John Casper, 1850–1922, American geologist, b. New Market, Tenn. He made geological investigations in Brazil (1874–84); the results of these studies and of others made in later years were...

Mazatlán

(Encyclopedia)Mazatlán mäsätlänˈ [key], city (1990 pop. 262,705), Sinaloa state, W Mexico, on the Pacific coast. One of the largest commercial and industrial centers of W Mexico, Mazatlán is one of Mexico's m...

Bancroft, Hubert Howe

(Encyclopedia)Bancroft, Hubert Howe, 1832–1918, American publisher and historian, b. Granville, Ohio. Bancroft began his career as a bookseller in San Francisco in 1852. Soon he had his own firm, the largest book...

Natives, Middle American

(Encyclopedia)Natives, Middle American or Mesoamerican, aboriginal peoples living in the area between present-day United States and South America. Although most of Mexico is geographically considered part of North ...

Douglas, David

(Encyclopedia)Douglas, David, 1798–1834, Scottish botanist. He made several journeys in North America between 1823 and 1834 to study American plants and sent to Scotland more than 200 plants and seeds then unknow...

Permian period

(Encyclopedia)Permian period pûrˈmēən [key] [from Perm, Russia], sixth and last period of the Paleozoic era (see Geologic Timescale, tablegeologic timescale, table) from 250 to 290 million years ago. Many ma...

Gulf Stream

(Encyclopedia)Gulf Stream, warm ocean current of the N Atlantic Ocean, off E North America. It was first described (1513) by Spanish explorer Ponce de León. The Gulf Stream originates in the Gulf of Mexico and, as...

Fernández de Córdoba, Francisco, d. 1518?, Spanish explorer in Mexico

(Encyclopedia)Fernández de Córdoba, Francisco fränthēsˈkō fārnänˈdāth dā kōrˈdōbä [key], d. 1518?, Spanish explorer in Mexico. Sailing from Cuba on a slave hunt, he discovered Yucatán in 1517. He di...

gopher

(Encyclopedia)gopher or pocket gopher, name for the burrowing rodents of the family Geomyidae, found in North America and Central America. The gopher is gray, buff, or dark brown. Its combined head and body length ...

swan

(Encyclopedia)swan, common name for a large aquatic bird of both hemispheres, related to ducks and geese. It has a long, gracefully curved neck and an extremely long, convoluted trachea which makes possible its far...