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See also:VISTULA (Ger. Weichsel, See also:Polish Wisla) , one of the See also:chief See also:rivers of See also:Europe, rising in See also:Austria and flowing first through See also:Russian and then through Prussian territory. Its source is in See also:Austrian See also:Silesia on the See also:northern slopes of the See also:West Beskiden range of the Carpathian mountains. The stream runs through a See also:mountain valley, in a N.N.W. direction to Schwarzwasser, where it leaves the mountains, turns E. and N.E., and forms See also:part of the Austro-See also:German frontier. Returning within Austrian territory (See also:Galicia), it passes See also:Cracow, and thereafter forms a See also:long stretch of the frontier with See also:Russia (See also:Poland), bending gradually towards the See also:north, until at Zawichost it runs due N. and enters Poland. Here it at first bisects the high-lying See also:plateau of See also:southern Poland, but leaves this near Jozefow, and flows as far as the junction with the Pilica in a broad valley between wooded bluffs. See also:Crossing the See also:plain of central and northern Poland, it passes See also:Warsaw, and at the junction of the See also:Bug sweeps W. and N.W. to pass See also:Plock and Wloclawek (see further POLAND for its course within this territory). It enters See also:Prussia 10 m. above See also:Thorn, turns N.E. on receiving the See also:Brahe, passes See also:Graudenz and turns towards the north. From this point it throws off numerous branches and sweeps from See also:side to side of a broad valley, having steep See also:banks on the side upon which it impinges, and on the other being bordered by extensive See also:flat lands. Nearing the Baltic See also:Sea it forms a See also:delta, dividing into two See also:main arms, the See also:left or western of which bears the name of Vistula, and flows directly to See also:Danzig See also:Bay, while the right is called the Nogat, and flows into the Frisches Haff. The enclosed deltaic See also:tract is very fertile. Parts of it are known as Wender (cf. the See also:English "islands" or " helms " in the See also:Fens and other See also:low-lying tracts of the See also:east). In the See also:lower part of the delta the Haff See also:Canal leads from the main See also:river to the Frisches Haff; there are also various natural channels in that direction, but the main river passes on towards the N.W.; having a tendency to run parallel to the See also:coast, and reaching Danzig Bay with a See also:direct course only through an artificial cut constructed in 1888-96. The river See also:broke a new channel into the bay, at a point between this cut and the old mouth at Neufahrwasser, on the See also:night of the 1st-2nd of See also:February 184o. The important seaport of Danzig, however, is on the old channel, and this channel is used by See also:shipping, which enters it by a canal at Neufahrwasser. The Nogat, formerly inconsiderable, had become so much deepened and broadened by natural means in the See also:early part of the 19th See also:century that it carried more See also:water than the Vistula itself (i.e. the other main deltaic See also:branch). In 1845-57 the outflow of the Nogat was stopped and an artificialchannel was formed for it, so as to restore the proper See also:head of water to the Vistula.
Shifting banks See also:form a serious impediment to See also:navigation, and these and floods (principally in See also:spring and midsummer) necessitate careful See also:works of regulation. The river is See also:ice-See also:bound at Warsaw, on an See also:average, from about the loth of See also:December to the loth of See also: Its See also:total length is about 65o m., and its drainage. See also:area approaches 74,000 sq. M. See H. See also:Keller, See also:Memel-, Pregel- and Weichselstrom, ihre Stromgebiete, &c., vols. iii. and iv. (See also:Berlin, 1900). Additional information and CommentsThere are no comments yet for this article.
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