On the 6th we left Harrisburg, at 9 o'clock in the morning, for New York, visiting the famous Iron Works on our way, and halting at Middleton to inspect the farm of Colonel Long, which is one of the sights of the country, and which all the agriculturalists of the party declared was an exceedingly well-managed display of agricultural skill; an admirable exhibition of what may be done in the States to emulate the best establishments of the old country. The produce of the farm was pronounced to be excellent, the fields clean and well apportioned, beautiful pasture for stock, and fine arable for various crops, but the result of conversation with Colonel Long led some of the party to the conclusion that a farmer with good land in England can, at present prices, hold his own with any farmer in the Eastern States. The most interesting fact connected with the investigation was the discovery that the cultivation of tobacco is making great way in Pennsylvania, and that wheat has been abundant in consequence of the impossibility of competing with the West. Heavy manuring is requisite; nevertheless large tracts of Pennsylvania are passing under cultivation for tobacco-growing, and are stated to produce a weed almost equal to the best Maryland or Virginia. But the coal and iron and the manufactures of this favoured region must ensure it a long continuance of the extraordinary prosperity which was visible on all sides, if the asses in their fatness do not kick over the traces. For many miles of the country over which we travelled yesterday the storm of war had rolled heavily, and every town near at hand had some record of suffering or lucky escape from Lee's invading host. The Confederates had come within six miles of Harrisburg. Martinsburg, Frederic--in fact, every town near at hand had felt the hand of the South at its throat, till at Gettysburg the blow was struck which paralysed it for ever. At Carlisle one of our friends mentioned incidentally that his house had been "shelled by that confounded Fitzhugh Lee"--our travelling companion of a few days before. There were strong expressions uttered by others concerning the partition of Virginia and the State debt, but these were mysteries to us, and all we could see was that, in spite of past sufferings, there was now a vigorous, healthy, wealthy life in the land, of which the signs and tokens were visible as far as the eye could reach in our long day's travel. Our railway directors studied maps and asked questions and made notes indefatigably, and they no doubt comprehended the connections and arms of the railroads which were spread over the country--a mighty range, and all _with_ a plan--but I cannot pretend to share any of their knowledge, and can only say that we had a very pleasant, if somewhat warm, journey to New York, which we reached at 4.30 o'clock. Here we found a new wonder awaiting us in the aspect of the Falls River boat, on which we embarked for Boston at one of the piers on the North River.