"Of the iron consumed in the United States, it appears that about two fifths are manufactured at Pittsburg, in those hundred and thirteen iron-works mentioned before. There is not one of thsoe establishments in which an intelligent person may not find wonders enough to entertain him all day; but in the compass of one brief article we can do little more than allude to one or two of the more famous and established "lions". Pittsburg, as we have before remarked, is densley packed with marvels. Go where you will, you will find something of the most particular interest, that demands to be examined, and most richly rewards examination. If ever we establish a college, we shall arrange it so, that the senior class shall spend six weeks at and near Pittsburg, in order to vivify their knowledge of geology, chemistry, and the other sciences."