Columbia Encyclopedia

(Encyclopedia) galena gəlēˈnə [key] or lead glance, lustrous, blue-gray mineral crystallizing usually in cubes, sometimes in octahedrons. It is the most important ore and the principal source of lead. It consist...

(Encyclopedia) Sault Sainte Marie, city (1990 pop. 14,689), seat of Chippewa co., N Mich., Upper Peninsula, a port of entry on the St. Marys River opposite Sault Ste Marie, Ont.; inc. as a city 1887. A variety of li...

(Encyclopedia) flood, inundation of land by the rise and overflow of a body of water. Floods occur most commonly when water from heavy rainfall, from melting ice and snow, or from a combination of these exceeds the ...

(Encyclopedia)  CE5 Tennessee tĕnˈəsēˌ, tĕnˌəsēˈ [key], state in the SE central United States. It is bordered by Kentucky and Virginia (N), North Carolina (E), Georgia, Alabama, and Mississippi (S), and,...

(Encyclopedia) Phoenix, city (1990 pop. 983,403), state capital and seat of Maricopa co., S Ariz., on the Salt River; inc. 1881. It is the largest city in Arizona, the hub of the rich agricultural region of the Salt...

(Encyclopedia) Vancouver, city (1990 pop. 46,380), seat of Clark co., SW Wash., on the Columbia River opposite Portland, Oreg., with which it is connected by bridges; inc. 1857. A rapidly growing suburb of Portland ...

(Encyclopedia) Surgeon General, United States, former head of the U.S. Public Health Service, which is responsible for protecting the people's health (see public health). Since a 1986 reorganization, the surgeon gen...

(Encyclopedia)  CE5 Illinois, midwestern state in the N central United States. It is bordered by Lake Michigan and Indiana (E); Kentucky, across the Ohio River (SE); Missouri and Iowa, across the Mississippi River...

(Encyclopedia) United States Military Academy, at West Point, N.Y.; for training young men and women to be officers in the U.S. army; founded and opened in 1802. The original act provided that the Corps of Engineers...

(Encyclopedia) Norfolk [1,] [2] nôrˈfək; [2] nôrˈfôkˌ [key]. 1 City (1990 pop. 21,476), Madison co., NE Nebr., on the Elkhorn River; inc. 1881. A trade and railroad center in a fertile farming region, it has ...