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amphibole

(Encyclopedia) amphiboleamphiboleămˈfəbōlˌ [key], any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and…

Cullen, Countee

(Encyclopedia) Cullen, CounteeCullen, Counteekounˈtēˈ [key], 1903–46, American poet, b. New York City, grad. New York Univ. 1925, M.A. Harvard, 1926. A major writer of the Harlem Renaissance—a…

chromite

(Encyclopedia) chromitechromitekrōˈmīt [key], dark brown to black mineral. It is an iron-chromium oxide, FeCr2O4, with traces of magnesium and aluminum. Its crystals are octahedral, but rare; it…

Chesapeake Bay retriever

(Encyclopedia) Chesapeake Bay retriever, breed of large sporting dog developed in the United States. It stands about 24 in. (61 cm) high at the shoulder and weighs about 65 lb (29.5 kg). Its thick,…

Baker, George Pierce

(Encyclopedia) Baker, George Pierce, 1866–1935, American educator, b. Providence, R.I., grad. Harvard, 1887. He taught (1888–1924) in the English department at Harvard and there conceived and…

Sanborn, Franklin Benjamin

(Encyclopedia) Sanborn, Franklin Benjamin, 1831–1917, American journalist, author, and philanthropist, b. Hampton Falls, N.H., grad. Harvard, 1855. An active abolitionist, he was a friend and agent…

Rietveld, Gerrit Thomas

(Encyclopedia) Rietveld, Gerrit ThomasRietveld, Gerrit Thomasgĕrĭtˈ tōˈməs rētˈfĕlt [key], 1888–1965, Dutch architect and furniture designer. At first a cabinetmaker, Rietveld created (c.1917) a…

obsidian

(Encyclopedia) obsidianobsidianŏbsĭdˈēən [key], a volcanic glass, homogeneous in texture and having a low water content, with a vitreous luster and a conchoidal fracture. The color is commonly black…

Ogata Kenzan

(Encyclopedia) Ogata KenzanOgata Kenzanōgäˈtä kĕnˈzän [key] 1663–1743, Japanese potter and painter; younger brother of Ogata Korin. A follower of the Rimpa school, he set up kilns for the production…

wallflower

(Encyclopedia) wallflower, Mediterranean perennial (Cheiranthus cheiri) of the family Cruciferae (or Brassicaceae; mustard family), particularly popular in Europe, where it flourishes on old walls.…