The great petroleum fields lie in and near the Pittsburg region, in the basin of the Allegheny and Ohio Rivers, and extend from New York southwest to West Virginia, and also into Ohio. This region has had enormous yields in different parts of the river basin, the wells, however, ultimately dwindling as their supplies are drawn out. The petroleum industry, which has been one of the greatest in Pennsylvania, has been gradually all absorbed by the Standard Oil Company, which is probably the most extensive industrial combination in America, and certainly the most powerful. Yet we are told that those financial magnates began their wonderful career with an aggregate capital of only $24,000, largely borrowed money. There have been forty millions of barrels of petroleum taken from this great basin in a single year. The oil wells are bored in many places, south, southwest, north and northeast of Pittsburg. The "Panhandle Railroad," which crosses West Virginia to the Ohio, exhibits many of them. A branch of this railroad goes to Canonsburg, and thence to the town of Washington, on the old "National Road," thirty miles from Pittsburg. At Canonsburg was founded in 1773 Jefferson College, in a log cabin, which has now become the Jefferson Theological Seminary of the Presbyterian Church. Washington is a town of about four thousand people, rambling over a pleasant hilly region in Southwestern Pennsylvania, having as its chief institution Washington and Jefferson College, also a Presbyterian foundation, started in 1806 in what was then a remote Scotch-Irish colony beyond the mountains. Near this town in 1888 were struck the greatest petroleum wells the world ever knew. One of them, the Jumbo well, in sixty days after the first strike had poured out one hundred and forty thousand barrels of oil, flowing a steady circular stream of almost white oil, about five inches in diameter, at the rate of forty-two hundred gallons an hour. Another well, afterwards bored not far away, in its freshness of infancy poured out sixty-three hundred gallons an hour. Additional wells were bored with almost the same results; but they all afterwards dwindled, and finally ceasing a free flow, had to be pumped. This is the universal experience of all the oil regions, the "gushers," soon after the great strikes, giving out, as the store of petroleum in the reservoirs beneath becomes exhausted. But all this shows how enormous is the natural wealth of the Pittsburg district--oil, coal, coke and gas, with iron, steel and glass, electricity and railways, contributing to the wonderful prosperity.