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diffusion

(Encyclopedia)diffusion, in chemistry, the spontaneous migration of substances from regions where their concentration is high to regions where their concentration is low. Diffusion is important in many life process...

luxury tax

(Encyclopedia)luxury tax, levy on articles that are not essential to a normal standard of living. Such taxes may be imposed strictly for revenue purposes or they may be intended to discourage consumption of certain...

Atholston, Hugh Graham, 1st Baron

(Encyclopedia)Atholston, Hugh Graham, 1st Baron ăthˈəlstən [key], 1848–1938, Canadian newspaper publisher. He was the founder and proprietor (1869) of the evening paper the Montreal Star, which became Canada'...

Pearson, John

(Encyclopedia)Pearson, John, 1613–86, English prelate and scholar. He was a royalist chaplain (1645) in the civil war, but during Cromwell's regime he lived quietly in London. His Exposition of the Creed (1659), ...

Thénard, Louis Jacques

(Encyclopedia)Thénard, Louis Jacques lwē zhäk tānärˈ [key], 1777–1857, French chemist. He became professor at the Collège de France (1802), dean of the Faculty of Sciences, Paris (1821), chancellor of the ...

Abbado, Claudio

(Encyclopedia)Abbado, Claudio, 1933–2014, Italian conductor, b. Milan. He debuted (1960) in his native city, conducting the orchestra at La Scala, where he subsequently served (1968–86) as musical director. He ...

Rogers, Henry Huttleston

(Encyclopedia)Rogers, Henry Huttleston, 1840–1909, American financier, b. Fairhaven, Mass. After he moved (1860) to Pennsylvania, he entered the oil business, experimented in the refining of petroleum, and, in pa...

Seton, Ernest Thompson

(Encyclopedia)Seton, Ernest Thompson, 1860–1946, American writer and artist, b. England. His name was originally Ernest Seton Thompson. His stories and paintings of wildlife, especially Wild Animals I Have Known ...

Shaw, Leslie Mortier

(Encyclopedia)Shaw, Leslie Mortier, 1848–1932, U.S. Secretary of the Treasury (1902–7), b. Morristown, Vt. Admitted to the Iowa bar in 1876, he organized (1880) a banking firm that specialized in agricultural c...

Commonwealth Fund

(Encyclopedia)Commonwealth Fund, foundation established (1918) by Anna M. Harkness, wife of Stephen V. Harkness, an early Standard Oil investor, “for the welfare of mankind.” Its headquarters are in New York Ci...