APPENDIX, N° II. 
519 
JVavast; and, consequently, with the Lake 
Peypus, and the adjacent country, to Dorpat. 
During the high water in spring, a considerable 
number of vessels pass the Finnere, to the last- 
mentioned port. 
Were the projected plan of General De Witt 
put into execution, to enable vessels to pass by 
the Aa ( Gavia ), which empties itself into the 
Baltic, not far from the estuary of the Southern 
Dvina or China, an uninterrupted communication 
between Riga and the Peypus would be esta- 
blished. The canal necessary to be dug, is to 
be of small extent, but the river itself requires 
much labour to be made perfectly navigable. 
The Rivulet Schwartzbach, having a firm bottom, 
may be converted into a canal, with only one 
sluice to join the Lake Vagoula: the River Vo, 
necessary for this communication, requires 
also to be cleared, and three or four sluices 
built. This plan was proposed for execution 
at private expense, but has not commenced. 
Nor is it of immediate consequence, as already 
great traffic may be carried on from the Peypus, 
by the government of Pskof, through the Narova. 
The advantage of a passage through the Schwartz - 
bach would be great indeed, were it to lead to 
an inland water communication between the 
ports of St. Petersburg and Riga, to avoid going 
by sea, particularly in time of war. 
