The _Ouisconsin_ is the largest river of the North-West territory that flows into the Mississippi. It rises in the northern interior of the country, and interlocks with the Montreal of Lake Superior. It has a course of between three and four hundred miles, has a shallow and rapid current, which is, however, navigable by boats in good stages of the water, and is eight hundred yards wide at its mouth. There is a portage of only half a mile between this and Fox river. It is over a level prairie, across which, from river to river, there is a water communication for periogues in high stages of the water. _Fox River_ has a course of two hundred and sixty miles. It runs through Winnebago lake. It has a fine country on its banks, with a salubrious climate. _Chippeway_ is a considerable river of the Mississippi, and enters it just below Lake Pepin. It is half a mile wide at its mouth, and has communications by a short portage with Lake Superior. The other chief rivers of this territory, tributary to the ‘father of waters,’ are St. Croix, Rum, St. Francis, and Savanna. Among the smaller tributaries to the Mississippi are the Obian, Forked Deer, Big Hatchet, and Wolf rivers, all of which flow into it from Tennessee; and the Yazoo and Big Black, from the state of Mississippi. The last named rivers are only navigable for boats. Beside the rivers which flow into the Mississippi, and are thus emptied into the Gulf of Mexico, there are a few small streams which disembogue immediately into the gulf. The _Alabama River_ rises in the mountainous parts of Georgia, in two head-streams named the Coosa and Tallapoosa, and running south-westerly through the centre of the state of Alabama, unites with the Tombeckbee; both the streams then take the name of Mobile, and flowing south for a short distance fall into Mobile Bay. The _Tombeckbee_ is formed of two main branches rising in the mountains of the Mississippi. It has a boat navigation in the lower part of its course. The Alabama has a boat navigation for one hundred and fifty miles from the bay. _Pearl River_ rises near the centre of the state of Mississippi. A number of branches unite to form the main river, which is afterwards increased by the Chuncka and other streams. It passes through a pleasant and fertile country, and derives much importance from being one of the chief points of communication between the state through which it flows and the Gulf of Mexico. The _Pascagoula_ rises in latitude thirty three degrees, and after travelling for two hundred and fifty miles a tract of pine country, broadens at its mouth into an open bay, on which, at a town of its own name, is a resort for the inhabitants of New Orleans during the sickly months. Most of the rivers of Florida which flow into the gulf have their sources in Georgia. The most important of these is the _Appalachicola_. The topography of this country is as yet very imperfect, and the very numerous streams which intersect it have borne a variety of names.