We had gone about three hundred miles, when we reached Pittsburgh.

It was the 28th of March when we landed at this place, which I remember because it was my birthday.

And I here bid adieu to the kind and excellent proprietor of the ark, L.Pettiborne, Esq., who refused to receive any compensation for my passage, saying, prettily, that he did not know how they could have got along without me.
I stopped at one of the best hotels, kept by a Mrs.McCullough, and, after visiting the manufactories and coal mines, hired a horse, and went up the Monongahela Valley, to explore its geology as high as Williamsport.

The rich coal and iron beds of this part of the country interested me greatly; I was impressed with their extent, and value, and the importance which they must eventually give to Pittsburgh.

After returning from this trip, I completed my visits to the various workshops and foundries, and to the large glassworks of Bakewell and of O'Hara.
I was now at the head of the Ohio River, which is formed by the junction of the Alleghany and Monongahela.