the north by the Arctic Pole, and by the two great Oceans on the east and west. It stretches towards the south, forming a triangle, whose irregular sides meet at length below the great lakes of Canada.
The second region begins where the other terminates, and includes all the remainder of the continent.
The one slopes gently towards the Pole, the other towards the Equator.
The territory comprehended in the first region descends towards the north with so imperceptible a slope, that it may almost be said to form a level plain. Within the bounds of this immense tract of country there are neither high mountains nor deep valleys. Streams meander through it irregularly; great rivers mix their currents, separate and meet again, disperse and form vast marshes, losing all trace of their channels in the labyrinth of waters they have themselves created; and thus at length, after innumerable windings, fall into the Polar seas. The great lakes which bound this first region are not walled in, like most of those in the Old World, between hills and rocks. Their banks are flat, and rise but a few feet above the level of their waters; each of them thus forming a vast bowl filled to the brim. The slightest change in the structure of the globe would cause their waters to rush either towards the Pole or to the Tropical Sea.
The second region is more varied on its surface,