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THEISS (Hungarian, Tisza; Lat., Tisia...

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Originally appearing in Volume V26, Page 758 of the 1911 Encyclopedia Britannica.
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THEISS (Hungarian, See also:Tisza; See also:Lat., Tisia or Tissus)  , a large affluent of the See also:Danube, next to which it is the greatest See also:river of See also:Hungary . It rises in the See also:north-eastern See also:part of the Carpathian mountains, in the See also:county of Maramaros, at a height of above 6300 ft., and is formed by the confluence of two branches, the See also:Black See also:Theiss (Fekete See also:Tisza), and the See also:White Theiss (See also:Feller Tisza), which unite at about 20 M . E. of Maramaros-Sziget . The Theiss then follows a north-See also:westerly direction until it leaves its mountainous valley, then runs See also:west, and after a See also:great See also:curve to the north, takes a See also:south-westerly direction and enters the great Hungarian See also:plain (Alf Old) . From Szolnok it runs south in an almost parallel course with that of the Danube, from which it is separated by a distance of about 6o m., and flows into the Danube near the See also:village of Titel, 20 m . E. of See also:Ujvidek . Its length from source to mouth is, as the See also:crow flies, only about 340 m., but its windings make its course about 870 M. See also:long . The Theiss is clear and See also:swift in its course through the mountains, but in the plain it becomes slow, somewhat muddy and very tortuous . Its See also:basin covers an See also:area of 56,600 sq. m., and comprises the whole eastern part of Hungary, and the greater part of Transylvania, and collects all the See also:rivers descending from the Carpathians westward . The Theiss is navigable for rafts almost everywhere, but for steamers only from Szolnok downwards, a distance of about 200 m., where the breadth of the river is 45o to 750 ft . The See also:depth of the Theiss at See also:low-See also:water See also:mark is 7 ft. at See also:Tokaj, 20 ft. at See also:Szeged and 11 it. at Titer, near its mouth, while the difference between the low-water mark and the high-water mark is as high as 25 to 35 ft . During its course through the great Hungarian plain the Theiss flows between See also:flat, low-lying See also:banks. which are the cause of periodical and sometimes disastrous inundations and of extensive marshes .

Therefore extensive See also:

works have been undertaken for the regulation and canalization of the river, which is now strongly dammed in many parts . By these works large tracts of marshes have been transformed into productive ground . Its See also:chief tributaries are the Szamos, Ki See also:ros, Maros, Latorcza, and the Saj6 . In its See also:lower course ' it is joined to the Danube by the See also:Franz Josef See also:canal, while it is also See also:united with See also:Temesvar by the Bega canal .

End of Article: THEISS (Hungarian, Tisza; Lat., Tisia or Tissus)
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