The passage of the rivers through the ridge at this place is certainly a curious scene, and deserving of attention; but I am far from thinking with Mr. Jefferson, that it is “one of the most stupendous scenes in nature, and worth a voyage across the Atlantic;” nor has it been my lot to meet with any person that had been a spectator of the scene, after reading his description of it, but what also differed with him very materially in opinion. To find numberless scenes more stupendous, it would be needless to go farther than Wales. A river, it is true, is not to be met with in that country, equal in size to the Patowmac; but many are to be seen there rushing over their stony beds with much more turbulence and impetuosity than either the Patowmac or Shenandoah: the rocks, the precipices, and the mountains of the Blue Ridge at this place are diminutive and uninteresting also, compared with those which abound in that country. Indeed, from every part of Mr. Jefferson’s description, it appears as if he had beheld the scene, not in its present state, but at the very moment when the disruption happened, and when every thing was in a state of tumult and confusion. After crossing the Patowmac, I passed on to Frederic in Maryland, which has already been mentioned, and from thence to Baltimore. The country between Frederic and Baltimore is by no means so rich as that west of the Blue Ridge, but it is tolerably well cultivated. Iron and copper are found here in many places. No works of any consequence have as yet been established for the manufacture of copper, but there are several extensive iron works. The iron is of a remarkably tough quality; indeed, throughout the states of Maryland, Virginia, and Pennsylvania, it is generally so; and the utensils made of it, as pots, kettles, &c. though cast much thinner than usual in England, will admit of being pitched into the carts, and thrown about, without any danger of being broken. The forges and furnaces are all worked by negroes, who seem to be particularly suited to such an occupation, not only on account of their sable complexions, but because they can sustain a much greater degree of heat than white persons without any inconvenience. In the hottest days in summer they are never without fires in their huts.