{107} by the strength of the current; some of a darkish hue, break easily; others smaller, and in less quantities, are three parts white, and scarcely transparent.
In the Ohio, as well as in the Alleghany, Monongahela, and other rivers in the west, they find in abundance a species of Mulette which is from five to six inches in length. They do not eat it, but the mother-o'-pearl which is very thick in it, is used in making buttons. I have seen some at Lexinton which were as beautiful as those they make in Europe. This new species which I brought over with me, has been described by Mr. Bosc, under the name of the Unio Ohiotensis.
The Ohio abounds in fish of different kinds; the most common is the cat-fish, or silurus felis, which is generally caught with a line, and weighs sometimes a hundred pounds. The first fold of the upper fins of this fish are strong and pointed, similar to those of a perch, which he makes use of to kill others of a lesser size. He swims several inches under the one he wishes to attack, then rising rapidly, he pierces him several times in the belly; this we had an opportunity of observing twice in the course {108} of our navigation. This fish is also taken with a kind of spear.
Till the years 1796 and 1797 the banks of the Ohio were so little populated that they scarcely consisted of thirty families in the space of four hundred miles; but since that epoch a great number of emigrants have come from the mountainous parts of Pennsylvania and Virginia, and settled there; in consequence of which the plantations now are so increased, that they are not farther than two or three miles distant from each other, and when on the river we always had a view of some of them.
The inhabitants on the borders of the Ohio, employ
