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 goats and sheep. Silkworms are reared. The chief wealth of Yun-nan consists, however, in its minerals. Copper is the most important of the minerals worked. Silver and gold are produced, but they are not known to exist in any large quantities. Lead is of frequent occurrence, and indeed the area through which copper, silver, lead, tin and zinc are distributed in sufficient quantities to make mining answer, comprises at least 80,000 sq. m. Coal is also found and several salt mines are worked. The ores are generally of good quality, and are easy of extraction. Cotton yarn and cloth, petroleum, timber and furs are among the chief imports; copper, tin, hides and tea are important exports; medicines in the shape not only of herbs and roots, but also of fossils, shells, bones, teeth and various products of the animal kingdom; and precious stones, principally jade and rubies, are among the other exports.

Yun-nan, long independent, was subdued by Kublai Khan, but was not finally incorporated in the empire until the 17th century. It was the principal centre of the great Mahommedan rebellion, which lasted sixteen years and was suppressed in 1872. Even in 1910 the province had not wholly recovered from the effects of that struggle and the barbarity with which it was stamped out. The opening of Christian (Protestant) mission work in Yun-nan began in 1877, and was one result of the murder of Mr Margary (see, History, § D).

See H. R. Davies, Yun-nan, the Link between India and the Yangtze (Cambridge, 1909); A. Little, Across Yunnan (London, 1910); Rev. J. M'Carthy, “The Province of Yunnan,” in The Chinese Empire (London, 1907); L. Richard, Comprehensive Geography of the Chinese Empire (Shanghai, 1908).  YUN-NAN FU, the capital of the province of Yun-nan, China, in 25° 6′ N., 102° 52′ E. It is about 500 m. by rail N.N.W. of the port of Haiphong, Tongking. The population was returned in 1907 at 45,000. Originally the surrounding district was known as the “land of the southern barbarians.” The city is situated on a plain, and is surrounded by fortified walls, 6½ m. in circuit. For many years Mahommedans have been numerous in the city and neighbourhood; and in 1855 a Mahommedan rising occurred. Before the rebellion Yun-nan Fu had a prosperous aspect; the shops were large and well supplied with native silken goods, saddlery, &c., while English cotton, Russian cloths and raw cotton from Burma constituted the main foreign merchandise. Employment for large numbers of work-people was found in the copper factories. A mint at Yun-nan Fu issued annually 101,000,000 cash. Nearly ruined by the rebellion, the city took many years to recover its prosperity. A fresh impetus to commerce was given by the opening in 1910 of the railway from Tongking, a line built by French engineers and with French capital. The construction of a British railway to connect Burma with Yun-nan Fu and onwards to the Yangtsze-kiang has been in contemplation.  YURIEV (formerly, also Dörpt; Russian, Derpt; Esthonian, Tarto and Tartolin; in Lettish, Tehrbata), a town of W. Russia, in the government of Livonia, situated on the Embach, 158 m. by rail N.E. of Riga, in 38° 23′ N. and 26° 23′ E. Pop. 42,421. The principal part of the town lies S. of the river, and the more important buildings are clustered round the two eminences known as the Domberg (cathedral hill) and the Schlossberg (castle hill), which in the middle ages were occupied by the citadel, the cathedral and the episcopal palace. Owing to a great fire in 1777, the town is almost entirely modern; and its fortifications have been transformed into promenades. Besides a good picture gallery in the Ratshof, and the 13th-century church of St John, Yuriev possesses a university, with an observatory, an art museum, a botanical garden and a library of 250,000 volumes, which are housed in a restored portion of the cathedral, burned down in 1624. The university was founded by Gustavus Adolphus of Sweden in 1632; but in 1699 teachers and students removed to Pernau on the advance

of the Russians, and on the occupation of the country by Peter the Great again took flight to Sweden. In spite of the treaty of 1710 and the efforts of the Livonian nobles, it was not till 1802 that its restoration was effected under the patronage of Alexander I. Down to 1895, in which year it was thoroughly Russified, the university was German in spirit and in sentiment. It is now attended by some 1700 students annually. The astronomical department is famous, owing partly to the labours of F. G. W. von Struve (1820-39), and partly to Fraunhofer's great refracting telescope, presented by the emperor Alexander I. There are monuments to the naturalist K. E. von Baer (1886) and Marshal Barclay de Tolly (1849), and the town is the headquarters of the XVIII. army corps.

The foundation of Dorpat is ascribed to Yaroslav, prince of Kiev, and is dated 1030. In 1224 the town was seized by the Teutonic Knights, and in the following year Bishop Hermann erected a cathedral on the Domberg. From that date till about 1558 the town enjoyed great prosperity, and the population reached 50,000. In 1558 it was captured by the Russians, but in 1582 was yielded to Stephen Bathori, king of Poland. In 1600 it fell into the hands of the Swedes, in 1603 reverted to the Poles, and in 1625 was seized by Gustavus Adolphus of Sweden. The Russians again obtained temporary possession in 1666, but did not effect a permanent occupation till 1704. In 1708 the bulk of the population were removed to the interior of Russia.  YUSAFZAI, a large group of Pathan tribes, originally immigrants from the neighbourhood of Kandahar, which includes those of the Black Mountain, the Bunerwals, the Swatis, the people of Dir and the Panjkora valley, and also the inhabitants of the Yusafzai plain in Peshawar district of the North-West Frontier Province of India. Three sections of the tribe, the Hassanzais, Akazais and Chagarzais, inhabit the W. slopes of the Black Mountain, and the Yusafzai country stretches thence to the Utman Khel territory. The trans-border Yusafzais are estimated at 65,000 fighting men, giving a total population of about 250,000. The Yusafzais are said to be descended from one Mandai, who had two sons, Umar and Yusaf. Umar died, leaving one son, Mandan; from Mandan and Yusaf come the two primary divisions of the Yusafzais, which are split into numerous subdivisions, including the Isazais, Malizais, Akazais, Ranizais and Utmanzais.  YUZGAT, the chief town of a sanjak of the same name in the Angora vilayet of Asia Minor, altitude 4380 ft., situated 105 m. E. of Angora, near the head of a narrow valley through which the Angora-Sivas road runs. The town was built largely out of the ruins of Nefez Keui (anc. Tavium), by Chapan Oghlu, the founder of a powerful Dere Bey family. There is a trade in yellow berries and mohair. The sanjak is very fertile, and contains good breeding-grounds, upon which horses, camels and cattle are reared. The population, about 15,000, includes a large Armenian community.  YVETOT, a town of N. France, capital of an arrondissement in the department of Seine-Inférieure, 24 m. N.W. of Rouen on the railway to Havre. Pop. (1906) 6214. Cotton goods of various kinds and hats are made here, and trade is carried on in agricultural products. The church (18th century) contains a marble altar from the Carthusian monastery at Rouen, fine woodwork of the 17th century from the abbey of St Wandrille, and a handsome pulpit. The town is the seat of a sub-prefect and has tribunals of first instance and of commerce, and a chamber of arts and manufactures. The lords of Yvetot bore the title of king from the 15th till the middle of the 16th century, their petty monarchy being popularized in one of Béranger's songs. In 1592 Henry IV. here defeated the troops of the League. 