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Comstock Lode

(Encyclopedia)Comstock Lode, richest known U.S. silver deposit, W Nevada, on Mt. Davidson in the Virginia Range. It is said to have been discovered in 1857 by Ethan Allen Grosh and Hosea Ballou Grosh, sons of a Pen...

Erlenmeyer, Richard A. C. E.

(Encyclopedia)Erlenmeyer, Richard A. C. E. ĕrˈlənmīˌər [key], 1825–1909, German chemist. He studied at Giessen under Justus von Liebig and at Heidelberg under Friedrich Kekulé, both German chemists. Erlenm...

inclosure

(Encyclopedia)inclosure or enclosure, in British history, the process of inclosing (with fences, ditches, hedges, or other barriers) land formerly subject to common rights. Such land included fields cultivated by t...

mass spectrograph

(Encyclopedia)mass spectrograph, device used to separate electrically charged particles according to their masses; a form of the instrument known as a mass spectrometer is often used to measure the masses of isotop...

Biafra, Republic of

(Encyclopedia)Biafra, Republic of, secessionist state of W Africa, in existence from May 30, 1967, to Jan. 15, 1970. At the outset Biafra comprised, roughly, the East-Central, South-Eastern, and Rivers states of th...

Long Island University

(Encyclopedia)Long Island University, main campus at Brooklyn, N.Y.; coeducational; chartered 1926, opened 1927. It also includes C. W. Post College (est. 1954) at Brookville, Long Island, a campus at Southampton, ...

gold rush

(Encyclopedia)gold rush, influx of prospectors, merchants, adventurers, and others to newly discovered gold fields. One of the most famous of these stampedes in pursuit of riches was the California gold rush. The d...

Rich, Adrienne

(Encyclopedia)Rich, Adrienne, 1929–2012, American poet, b. Baltimore, grad. Radcliffe, 1951. From the 1970s her exquisitely wrought verse became looser and more personal as her works increasingly reflected femini...

Younger, Cole

(Encyclopedia)Younger, Cole (Thomas Coleman Younger), 1844–1916, American outlaw, b. Jackson co., Mo. After the Civil War he joined the outlaw band of Jesse James, with whom he had served as a Confederate guerril...

Roentgen, Wilhelm Conrad

(Encyclopedia)Roentgen or Röntgen, Wilhelm Conrad both: rĕntˈgĭn, rŭntˈ–, Ger. vĭlˈhĕlm kônˈrät röntˈgən [key], 1845–1923, German physicist. His notable research in many fields of physics, especi...