The _Delaware_ issues by two streams, called the _Coquago_ and the _Rappadon_, the union of which, forty miles in a direct line from their sources, form the Delaware, from the Katskill Mountains, in the county of Delaware, state of New York. Running first south, it next turns to the south-east, forming, for the space of sixty miles, the boundary between Pennsylvania and New York; and thence, forms again the line of separation between the former state and that of New Jersey, for upwards of one hundred miles more to Trenton, where there are falls, but of no great height. Thence, with increased breadth, it pursues a course of thirty-six miles farther, to Philadelphia, where it is a mile broad. Thence it proceeds to Newcastle, forty miles below Philadelphia, where it is two miles broad. Thence it spreads out into a spacious bay, and falls into the Atlantic seventy miles below Newcastle, by an outlet of twenty-five miles. The whole course of the river, from the Atlantic to its source, is three hundred and fifty miles; and two hundred and eighty from the head of Delaware bay, including the windings. Its two chief tributary streams are the _Lehigh_ and _Schuylkill_. The navigation betwixt the Delaware and Chesapeak is now improved by means of a canal. The River _Susquehannah_, of all those of the eastern states, most resembles the Mississippi and the St. Lawrence, on account of its numerous and distant branches. The north-east branch, which is the remotest source, is formed by the junction of two small streams that issue from the lakes of Camadebago, Ustavantho, and Otsego, in the state of New York. It runs south and south-west in such a winding course, (receiving in its progress the _Unadilla_ and _Chenango_ rivers from the north,) that it crosses the boundary line between New York and Pennsylvania no less than three times. It forms a junction with the _Tioga_, in forty-one degrees and fifty-seven minutes north latitude; and thence pursues a south-east course of seventy miles to Wyoming; whence, making a sudden bend at a right angle, it runs a south-west course of eighty miles, and unites with the west branch at Northumberland. The river, now increased to the breadth of half a mile, flows south through the mountains, a course of forty miles, to its junction with the _Juniata_, when, turning to the east for ten miles, it emerges from the mountains above Harrisburg, and after a south-east course of eighty miles, falls into Chesapeak bay. The western branch of the Susquehannah is formed by many streams, beyond the Alleghany Mountains; and its most southern source is within a very few miles of the _Conemaugh_, or _Kiskeminitas_, which falls into the Alleghany a little above Pittsburg. After running a very winding course of two hundred miles, principally among the mountains, it joins with the east branch at Northumberland. The _Juniata_ rises in the Alleghany Mountains, and, pursuing an eastern and very serpentine and mountainous