The surrounding heights, its low situation, the fogs from the rivers, together with the universal use of stone coal for fires, added to the smoke and dust from the large number of mills and manufactories, form a cloud which almost amounts to night, and overspreads Pittsburg with the appearance of gloom and melancholy. At this place we met a number of travelers, rich and poor, Gen. Miller and suite, straggling play actors, and others. Coal dust was well ground in until I might say with much truth that I did not see a white man or woman in the place. The more you wash, the blacker you get. I am confident that I carried some of this coal dust 1,000 miles in spite of my efforts to get rid of it. Convenient place for performing "Zanga" or "The Moor of Venice." Visited all the manufactories and curiosities of the place. Their glass manufactories seem to excel all others--a great treat to those who never saw a bottle blown. Pittsburg in appearance suggests the idea of Moscow smoking and in ruins. It is a town of considerable manufacturing importance. Its inhabitants deserve fortune and a more salubrious atmosphere to spend it in. Thursday, Oct. 14.--Remained this day at Hunters'. Had my good little horse shod. Careless smith pricked him and produced temporary lameness. Friday, Oct. 15.--Left Pittsburg at 7 o'clock. Traveled over a poor and hilly country for thirty-six miles. Passed a few travelers bound to Ohio. Remarkable fact: About eight miles from Steubenville passed out of Pennsylvania into Virginia, out of Virginia into Ohio in the short space of two hours. Crossed the Ohio river after night at Steubenville. Stopped at Jenkinson's, an intelligent, gentlemanly, hospitable man. Visited the market. Beef, good, 6-1/4 cents a pound. Saturday, Oct. 16.--I omitted to mention that we, on the mountains, fell in with Mr. Cooper of Philadelphia, who has been our companion for several days. We had to part with him today, which we did with much reluctance, as he proved a very agreeable companion. Rainy day, fatigued by the broken country, determined to spend this day in Steubenville, a busy little village on the bank of the Ohio. Purchased a plain Jersey wagon and harness for $60. II.--THROUGH OHIO AND KENTUCKY Sunday, Oct. 18.--Myself and friend proceeded on our journey. We arrived at Siers, a distance of thirty miles, at dusk, much relieved by the change from our horses to the wagon. The roads were muddy, the weather drizzly and the country hilly. Buildings indifferent. The land very fertile and black. Trees uncommonly tall. Passed the little village of Cadis. In this country a tavern, a store, a smith shop and two or three cabins make a town. Passed ten or fifteen travelers. Great contrast between the quality of the land from Chambersburg to Pittsburg, and that which we have already traveled over from Steubenville in Ohio.