JAD'WIN, EDGAR ( 1,865— ). An American military engineer, born at Honesdale, Pa. He studied at Lafayette College (Easton, Pa.) in 1SS4-S6. graduated at the United States Military Academy in 1890, and carried on post-graduate study in the United States engineer school from 1891 to 1893. In 1890-91, 1893-99, and 1900-02, he was an assistant in Government engineering, largely in connection with rivers, harbors. and fortifications. During the Spanish-American War be was in the volunteer service, with ran!: of major, Third Regiment, United States Volun teer Engineers, from June 20, 1898. to September 15. 189S, and of lieutenant-colonel. Third Regi ment, from September 15. 1S9S, to May 17, I89.). From December 22. 1898, to February 2s. 1899, he was in command of the detached battalion of the regiment at Matanzas. Cuba. where the work performed included the surveying of Matanzas City and superintendence of its cleaning and san itation, laying of water-pipes to camps. general care of the water-supply for the troops, and the draughting of nnmerous maps. He was ap pointed captain. Corps of Engineers, United State; Army, in 1900, and in 1902 was placed in charge of all river and harbor and fortification work on the Pacific Coast south of San Fran cis•o, including the constru-tion of the :"•;111 Pedro breakwater. lac contributed articles on military engineering to The A Into rnalumul En•yclo pr(lia.
na-an'. A former kingdom in Anda lusia, or Southern ;vain, now the Province ol Jai.n, which ineludcs a somewhat larger area (512• square mile,) than the old kingdom (Map: Spain, 1) 4). it is bounded by New Cas tile on the north, Alluvia on the east, thanada on the mind]. and einalova on the west. It lies in the upper basin of the 1:nadalquivir. The northern part is traversed by the Sierra Morena, now deforested and almost barren, while hi the south and east arc the rugged. lofty. and \veil forested Sierras de Segura and Cazorla. The mineral wealth, especially of the northern moun tains, is considerable, including lead, iron, cl p per, zinc. and salt. Though iron ore is plentiful, lead is the only ,metal extensively mined. the production amounting to over su.oul) tons of ore annually. Agriculture is eonlimA to the valley of the Unadalquivir; cereal, and olives are grown: other industries are unimportant. The population of the province in Iss; was 437.42, and in 1900, 409.881. The Target city is Linares. and the capital is .lain.
The Kingdom of :laim arose in the eleventh century at the time of the dissolution of the Caliphate of Cordova. It was short-lived and of little importance. The region was con quered by Castile early in the fourteenth century.