westward we skirt the winding valley of the Cuyahoga and at Akron, Ohio, find ourselves crossing the portage between that stream and the Tuscarawas branch of the Muskingum. As we go on, the valley of the Sandusky turns up southward until we pass between its headwaters and just north of the Olentangy branch of the Scioto.
We face north again and look over the low-lying region of the Black Swamp until the Maumee Valley bars our way and we turn south to cross the historic portage near Fort Wayne, Indiana, which connects the Maumee and the Wabash. By a zig-zag course we approach the basin of Lake Michigan and pass deftly on the height of ground between the St. Joseph flowing northward and the Kankakee flowing southward. Here we cross another famous portage path. Circling the extremity of Lake Michigan by a wide margin, our course leads us to a passage way between the Chicago River and the Illinois. Here we find another path. The Wisconsin River basin turns us northward now, and near Madison, Wisconsin, we run between the head of the Fox and the head of the Wis-
