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Ross, Sir James Clark

(Encyclopedia)Ross, Sir James Clark, 1800–1862, British polar explorer and rear admiral. In 1818 he accompanied his uncle, Sir John Ross, in search of the Northwest Passage and commanded the Erebus. He later stud...

Wood, Grant

(Encyclopedia)Wood, Grant, 1891–1942, American painter, b. Anamosa, Iowa, studied Art Institute of Chicago and in Paris. He experimented with an impressionist style in Paris, but in Munich in 1928 he was decisive...

mystery

(Encyclopedia)mystery or mystery story, literary genre in which the cause (or causes) of a mysterious happening, often a crime, is gradually revealed by the hero or heroine; this is accomplished through a mixture o...

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...

Gates, Horatio

(Encyclopedia)Gates, Horatio, c.1727–1806, American Revolutionary general, b. Maldon, Essex, England. Entering the British army at an early age, he fought in America in the French and Indian War and served in the...

Lee, Charles

(Encyclopedia)Lee, Charles, 1731–82, American Revolutionary army officer, b. Cheshire, England. He first came to America to serve in the French and Indian War and took part in General Braddock's disastrous campai...

Wegener, Alfred Lothar

(Encyclopedia)Wegener, Alfred Lothar älˈfrĕt lōtärˈ vĕgˈənər [key], 1880–1930, German geologist, meteorologist, and Arctic explorer. Early in his life, he was on the staff of the aeronautical observator...

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...

Hamilton, James Hamilton, 3d marquess and 1st duke of

(Encyclopedia)Hamilton, James Hamilton, 3d marquess and 1st duke of, 1606–49, Scottish nobleman; grandson of John Hamilton, 1st marquess of Hamilton. He succeeded (1625) his father as marquess of Hamilton and ear...

hadith

(Encyclopedia)hadith hädēthˈ [key], a tradition or the collection of the traditions of Muhammad, the Prophet of Islam, including his sayings and deeds, and his tacit approval of what was said or done in his pres...