Columbia Encyclopedia

Search results

177 results found

Mesa, city, United States

(Encyclopedia)Mesa māˈsə [key], city (1990 pop. 288,091), Maricopa co., S central Ariz., in the irrigated Salt River valley; inc. 1883. Electronic components, fabricated metals, aircraft, and machine tools are a...

azurite

(Encyclopedia)azurite ăzhˈərīt [key], blue mineral, the basic carbonate of copper, occurring in monoclinic crystals or masses that range from transparent to translucent and opaque. It is usually associated with...

Machebeuf, Joseph Projectus

(Encyclopedia)Machebeuf, Joseph Projectus zhôzĕfˈ prôzhĕktüsˈ mäshböfˈ [key], 1812–89, French missionary in the American Southwest, a Roman Catholic priest. He was a friend and associate of Jean Baptist...

Saguaro National Park

(Encyclopedia)Saguaro National Park, 91,443 acres (37,021 hectares), SE Ariz. Contained within the desert park are many examples of the saguaro cactus (Cereus giganteus), a monumentally proportioned, now rare speci...

Zimmermann note

(Encyclopedia)Zimmermann note, secret telegram sent on Jan. 16, 1917, by German foreign secretary Arthur Zimmermann to Count Johann von Bernstorff, the German ambassador to the United States. In it Zimmermann said ...

olivine

(Encyclopedia)olivine ŏlĭvˈēn [key], an iron-magnesium silicate mineral, (Mg,Fe)2SiO4, crystallizing in the orthorhombic system. It is a common constituent of magnesium-rich, silica-poor igneous rocks; metamorp...

Casa Grande

(Encyclopedia)Casa Grande käˈsä gränˈdā [key], city (2020 pop. 53,658), Pinal co., S Ariz.; inc. 1915. It lies in ...

Smith, Vernon Lomax

(Encyclopedia)Smith, Vernon Lomax, 1927–, American economist, b. Wichita, Kans., Ph.D. Harvard, 1955. He has taught at Purdue Univ. (1955–67), the Univ. of Massachusetts (1968–75), the Univ. of Arizona (1975�...

Geronimo

(Encyclopedia)Geronimo jərŏnˈəmōˌ [key], c.1829–1909, leader of a Chiricahua group of the Apaches, b. Arizona. From his youth he participated in the forays of Cochise, Victorio, and other Apache leaders. Wh...

garnet

(Encyclopedia)garnet, name applied to a group of isomorphic minerals crystallizing in the cubic system. They are used chiefly as gems and as abrasives (as in garnet paper). The garnets are double silicates; one of ...