Pittsburg (which is a very large manufacturing city) was enveloped in one vast cloud of smoke, and fine particles of dust, so that, although the weather was at times sultry and oppressive, it was necessary always to keep the windows shut. "This city is at the head of the river Ohio, at the confluence of the Alleghany and the Monongahela, and is situated in a district extremely rich in mineral wealth, whilst its vicinity to inexhaustible coal and iron mines, has raised it to great distinction as a manufacturing place. The immense extent of its manufactures, and of the coal and oil trade of the city can be realized, from the fact, that within the limits of what is known throughout the country as Pittsburg, there are 35 _miles_ of manufactories of iron, glass, steel, copper, oil, woods, cotton, and brass, without including manufactories of various other materials." On May 12th we left Pittsburg, and, after passing one night at Philadelphia, returned to New York on the 13th, where Mr. Müller fulfilled a few preaching engagements, before our embarkation for England on the 21st. During this our third tour in the United States, he preached 244 times altogether. At eighteen of these meetings, he addressed German or American pastors; fifteen were held for the students of Universities, Theological Seminaries, and Colleges; and seven for Christian workers. On Saturday, May 21st, we embarked for England in the "Britannic," and, after a most favourable passage, landed at Liverpool on May 30th. The next day we returned to Bristol; and, on reaching Ashley Down in the afternoon at half-past 4, were cordially welcomed home by many hundreds of the Orphan boys and girls, who, with several Christian friends and a large staff of helpers at the Orphan Houses, were waiting our arrival. Thus ended this seventh missionary tour, a long journey by land and water, which (like our previous travels) was marked from beginning to end by innumerable mercies. EIGHTH TOUR. EGYPT, PALESTINE, ASIA MINOR, TURKEY, AND GREECE. _From August 23rd, 1881, to May 30th, 1882._ After remaining in Bristol for eleven weeks, on August 23rd, 1881, we set off for Dover on our eighth missionary tour; crossed over to Calais on the 24th, went on to Paris, and, having started for Switzerland on the 25th, arrived at Berne on the 27th.