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) Tlaxcala tläskäˈlä [key], state (1990 pop. 761,277), 1,555 sq mi (4,027 sq km), E central Mexico. Tlaxcala is the capital. It is the smallest and one of the most densely populated Mexican states. ...

(Encyclopedia) William and Flora Hewlett Foundation, philanthropic organization founded in 1966 by engineer and entrepeneur William R. Hewlett (1913–2001), co-founder of Hewlett-Packard, his wife, Flora Lamson Hew...

(Encyclopedia) Bahia bäēˈyə [key], state, 216,612 sq mi (559,921 sq km), E Brazil, on the Atlantic Ocean...

(Encyclopedia) Vassar College văsˈər [key], at Poughkeepsie, N.Y.; coeducational; chartered 1861 by Matthew Vassar, opened 1865 as Vassar Female College, renamed 1867. A leading institution of higher education fo...

(Encyclopedia) Keokuk kēˈəkək [key], c.1780–1848, Native American, chief of the Sac and Fox, b. near present-day Rock Island, Ill. When Black Hawk supported the British in the War of 1812, Keokuk refused to jo...

(Encyclopedia) Virginia Polytechnic Institute and State University, better known as Virginia Tech, at Blacksburg; land-grant and state supported; coeducational; chartered and opened 1872 as an agricultural and mecha...

(Encyclopedia) Hall, James, 1811–98, American geologist and paleontologist, b. Hingham, Mass., grad. Rensselaer School (later Rensselaer Polytechnic Institute), 1832. An authority on stratigraphy and invertebrate ...

(Encyclopedia) school vouchers, government grants aimed at improving education for the children of low-income families by providing school tuition that can be used at public or private schools. The idea behind schoo...

(Encyclopedia) Clark, Jonas Gilman, 1815–1900, founder of Clark Univ., b. Hubbardston, Mass. After a long career in business and finance, he became interested in higher education, making extended trips of observat...