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fluorite

(Encyclopedia)fluorite flo͞oˈərspär [key], mineral appearing in various colors, e.g., green, yellow-brown, rose, and red. Chemically, it is calcium fluoride, CaF2. Its crystals, commonly cubic, are transparent ...

fuller's earth

(Encyclopedia)fuller's earth, mineral substance characterized by the property of absorbing basic colors and removing them from oils. It is composed mainly of alumina, silica, iron oxides, lime, magnesia, and water,...

Herreshoff, John Brown

(Encyclopedia)Herreshoff, John Brown hĕrˈəs-hŏf [key], 1841–1915, American yacht and ship builder. Though totally blind from the time he was 15, he managed his own sail-boat building company until his brother...

Harrow, borough, Greater London, England

(Encyclopedia)Harrow, outer borough of Greater London, SE England. For centuries Harrow grew foodstuffs for London. It is mainly residential and contains parts of the...

Jones, Robert Edmond

(Encyclopedia)Jones, Robert Edmond, 1887–1954, American scene designer, b. Milton, N.H. With his design in 1915 for The Man Who Married a Dumb Wife, a new era of scene design began in the United States. His use o...

Jooss, Kurt

(Encyclopedia)Jooss, Kurt ko͝ort yōs [key], 1901–79, German dancer, producer, and choreographer. Jooss was a student of Rudolf von Laban and was influenced by Émile Jacques-Dalcroze. The Green Table (1932), hi...

Arciniegas, Germán

(Encyclopedia)Arciniegas, Germán hĕrmänˈ ärsēnyāˈgäs [key], 1900–1999, Colombian historian and diplomat. A leading Latin American intellectual, he gained prominence as a journalist and publisher. A criti...

Stiegel, Henry William

(Encyclopedia)Stiegel, Henry William stēˈgəl [key], 1729–85, American iron and glass manufacturer, b. Germany. He emigrated to America, arriving in Philadelphia (1750). In 1758 he purchased his father-in-law's...

soapstone

(Encyclopedia)soapstone or steatite stēˈətīt [key], metamorphic rock of which the characteristic and usually chief mineral is talc, but which also contains varying parts of chlorite, mica, tremolite, quartz, ma...

Brown, Helen Gurley

(Encyclopedia)Brown, Helen Gurley, 1922–2012, American writer and editor, b. Green Forest, Ark. A child of poverty, she became a successful advertising copywriter and wrote the best-selling Sex and the Single Gir...