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cleavage

(Encyclopedia)cleavage, tendency of many minerals to split along definite smooth planar surfaces determined by their crystal structure. The directions of these surfaces are related to weaknesses in the atomic struc...

Puy-en-Velay, Le

(Encyclopedia)Puy-en-Velay, Le lə püēˈ-äN-vəlāˈ [key], city (1990 pop. 23,434), capital of Haute-Loire dept., S central France. Le Puy-en-Velay is the center of an old lace industry, as well as traditional ...

American Academy and Institute of Arts and Letters

(Encyclopedia)American Academy and Institute of Arts and Letters, honorary academy of notable American artists, writers, and composers. The National Institute of Arts and Letters, founded in 1898, served as the par...

Louisiana State University and Agricultural and Mechanical College

(Encyclopedia)Louisiana State University and Agricultural and Mechanical College, mainly at Baton Rouge; land-grant and state supported; coeducational; chartered 1853, opened as a state seminary 1860 near Alexandri...

basalt

(Encyclopedia)basalt bəsôltˈ, băsˈôlt [key], fine-grained rock of volcanic origin, dark gray, dark green, brown, reddish, or black in color. Basalt is an igneous rock, i.e., one that has congealed from a molt...

Watteau, Jean-Antoine

(Encyclopedia)Watteau, Jean-Antoine wätōˈ, Fr. zhäNˈ-äNtwäNˈ vätōˈ [key], 1684–1721, French painter of Flemish descent, b. Valenciennes. Until 1704 poverty forced him to work in the shops of mediocre a...

Hodgkin, Howard

(Encyclopedia)Hodgkin, Howard (Sir Gordon Howard Eliot Hodgkin), 1932–2017, English painter and printmaker, b. London. He attended the Camberwell School of Art, London, and Bath Academy of Art, Corsham, later tea...

Jacob, Max

(Encyclopedia)Jacob, Max zhäkôbˈ [key], 1876–1944, French writer and painter, b. Brittany. His dream-inspired verse, plays, novels, and paintings bridged and gave impetus to the symbolist and surrealist schoo...

Lichtenstein, Roy

(Encyclopedia)Lichtenstein, Roy lĭkˈtənstīnˌ [key], 1923–97, American painter, b. New York City. A master of pop art, Lichtenstein derived his subject matter from popular sources such as comic strips, the im...

Polke, Sigmar

(Encyclopedia)Polke, Sigmar, 1941–2011, innovative German artist best known for his paintings and photography. His family immigrated from East to West Germany in 1953, and he lived in Düsseldorf, studying (1961�...