The Oder is also connected by canals with the Havel and the Spree.
The lakes in the Prussian and Pomeranian provinces, in Mecklenburg and in Holstein, and those of the Havel, have already been mentioned.
To the east of the Saxons were the Polabs (Polabi) in the basin of the Elbe, and beyond them the Hevelli about the Havel.
This, the Teltow Canal, leaves the Spree above Berlin at KOpenick, and running south of Rixdorf, Siidende and Gross-Lichterfelde, enters the Havel at Teltow.
Its trade, chiefly in corn, meal and timber, is facilitated by the Zierker See and by a canal connecting the town with the Havel and the Elde.
