[Dalton, John], chemist and physicist, born near Cockermouth, of a Quaker family; took early an interest in meteorology, and kept through life a record of meteorological observations; taught mathematics and physics in Manchester; made his first appearance as an author in 1793 in a volume of his observations and essays, and in 1808 published "A New System of Chemical Philosophy," which he finished in 1810; famous for his experiments on the elastic force of steam, for his researches on the proportional weights of simple bodies, for his discovery of the atomic theory, as also for his investigations on colour-blindness by experimenting on himself and his brother, who along with himself was colour-blind (1766-1844).
[Daltonism], [colour-blindness] (q. v.). See [Dalton, John].
[Dalziel, Thomas], general, born in Linlithgowshire; being hand-idle at home, entered the Russian service against the Turks; returning at the request of Charles II., was appointed commander-in-chief in Scotland; suppressed a rising of the Covenanters at Pentland in 1666; never once shaved his beard after the execution of Charles I. (1599-1685).
[Daman], a Portuguese settlement with a port of the same name in Gujarat, India, 100 m. N. of Bombay.
[Dam`araland], a territory on the W. coast of South Africa, N. of Namaqualand; the chief industry is pastoral; the mountain districts, which are rich in minerals, particularly copper, are inhabited by Damaras, who are nomads and cattle-rearers; it is a German protectorate since 1890.
[Damas, Colonel Comte de], a devoted adherent of Louis XVI., and one of his convoys on his attempt at flight.
[Damascus] (220), the capital of Syria, one of the oldest cities in the world; stands 2260 ft. above the sea-level; is a great centre of the caravan trade; is embosomed in the midst of gardens and orchards, hence its appearance as the traveller approaches it is most striking; its history goes as far back as the days of Abraham; it was the scene of two great events in human destiny—the conversion of St. Paul, and, according to Moslem tradition, a great decisive moment in the life of Mahomet, when he resolutely turned his back once for all on the pleasures of the world.
[Damasus, St.], Pope from 366 to 384, a Spaniard; a zealous opponent of the Arians and a friend of St. Jerome, who, under his sanction, executed his translation of the Bible into the Vulgate; there was a Damasus II., Pope in 1048.
[Dame aux Camélias, La], a romance and a drama by Alexander Dumas fils, one of his best creations.
[Damien, Father], a French priest, born at Louvain; devoted his life to nurse and instruct the lepers in an island of the Hawaian group, and, though after 12 years infected with the disease himself, continued to minister to them till his death (1841-1889).