on the Baltic Sea. 377° 
Av Pillav and Memel it commiunicates with two large lakes, 
the Prifch Haffand Curifch Haff; which, however, both 
contain frefh water. |The former, according to the account 
of fome writers, was occafioned by a violent wind, which. . 
prevailed in the year 1190, and, continuing for more than 
twelve'years, droye up fo much fand from the bottom of the 
{ea\ that the prefent tongue of land was raifed; and the 
gulph, which now forms the Haff, feparated from. the 
Baltic. But this opinion is the more to be doubted, as, the 
near Suenfdorf, where the third lock is fituated, having a rife of the fame 
height. Here the upper canal begins, and proceeds for the diftance of 
2413 poles, between Schwartenbec and Wittenbec, to the fourth lock at 
the Upper Eyder near Schinkel. This upper canal, which ferves as a re« 
fervoir, has an influx of water from the neighbouring lakes fufficient for 
the purpofes of navigation, and is twenty-five feet fix inches higher than 
the level of the Baltic. At the fourth lock the canal falls feven feet four 
inches two lines ; proceeds 1438 poles in the Eyder to the fifth lock at Ned- 
derholten, where there is alfo a fall of the fame height ; and having con- 
tinued by Seeftede to ‘Steinwarp, 29gor poles, little more art is employed, 
becaufe the Eyder between that place and Rendfburg has almoft naturally 
the fufficicnt depth and breadth. A fixth lock is conftruéted at Rends-= 
burg, as the tide flows up therein the Eyder, and makes with the ebb a_ 
difference of one foot feven inches. The breadth of this canal, at the 
- bottom, is fifty-four feet, and, at the furface of the water, ninety feet. It 
is nine feet deep, and navigable for thips of from 150 to 160 tons burthen. 
The locks, therefore, between the gates, are 1c0 feet in length and 27 feet 
in breadth. Along the banks there is a path ten feet broad, and another of 
twelve fect, for the horfes which are employed to draw the veffels..- The 
number of veffels which paffed through this canal in 1797 amounted to 
2105, of which 1393 were laden with merchandize and the reft im ballaft. 
Ofthe former 41 were Danish veffels bound to foreign ports; and 129 bound 
from forcign countries to Danifh or other northern ports; 539 were from 
the Baltic; 170 from the North Sea; ; and 78 were bound to or coming 
from Altona. Among the foreign fhips were 24 Englith, 22,Dutch, 
430 from Haft Fricfland, 191 from the duchy of Oldenburg, g from Jes - 
vern, 89 from Popenbourg, 9 from Bremen, $ from Hamburgh, 6 from 
Lubec, 44 from Hanoverian ports, 81 from Mecklenburg, . 81. from 
Swedith Pomerania, 106, from Proffia, 1; from Courland and Ruffia, 
aiid 62 from Sweden, EDIT. 
Curifch 
