Perhaps the typical emigrant would not secure such a guide book but the information for which he made eager inquiry at his port of embarkation is contained here and is of great interest to the student of the times because of the variety of matters treated. Of the Ohio and its two great tributaries let us quote the following information: "MONONGAHELA "This river rises at the foot of the Laurel Mountain, in Virginia, thence meandering in a N. by E. direction, passes into Pennsylvania, and receives Cheat river from the S.S.E. Thence winding to a N. by W. direction, separates Fayette and Westmorland from Washington county, and passing into Allegheny county receives the Youghiogheny river at Pittsburgh, fifteen miles below the mouth of the former, and by land, fifty-five below Cheat. The Monongahela is about 450 yards wide at its mouth, measuring from the top of bank to bank, and in the fall and spring freshes has water enough to carry ships of 400 tons burthen; these, however, subside quickly and render the navigation for such vessels very precarious. One great difficulty attending the navigation of vessels of burden down this river arises from the almost impossibility of keeping them in the proper channel, it being in many places very narrow, and full of short turns around points of islands which are numerous. This observation will also apply to the Ohio, especially as low down as Wheelen [Wheeling], ninety miles below Pittsburgh." The waters of the Monongahela River, in those days as in these, were very muddy, and had it not been for the magnificent trees which abundantly lined the firm banks, the stream could not have been termed very beautiful. These trees were chiefly walnuts, black-oaks, hickories, maples, and button-woods, and afforded a bountiful supply of logs for the many sawmills which the pioneers had already erected along the river at the mouths of the various tributaries. Mr. Cramer tells us that the lumber obtained from these logs was floated down to Pittsburg, Wheeling, or some more remote point, and sold for a price ranging from a dollar to a dollar and a half per hundred feet. The country of the Monongahela was, even at this early day (1806), well populated; the land along the river was fertile and productive, and sold at any price from twelve to thirty dollars an acre. The "bottoms" contained many valuable sugar-maples and Cramer estimated that, if properly managed, each tree would yield four pounds of maple-sugar per annum--about one dollar a tree each season.