Mr. Wright found some twenty refineries between Titusville and Oil City the year of his visit, 1865. In several factories that he visited they were making naphtha, gasoline, and benzine for export. Three grades of illuminating oils—“prime white,” “standard white,” and “straw colour”—were made everywhere; paraffine, refined to a pure white article like that of to-day, was manufactured in quantities by the Downer works; and lubricating oils were beginning to be made. As men and means were found to put down wells, to devise and build tanks and boats and pipes and railroads for handling the oil, to adapt and improve processes for manufacturing, so men were found from the beginning of the oil business to wrestle with every problem raised. They came in shoals, young, vigorous, resourceful, indifferent to difficulties, greedy for a chance, and with each year they forced more light and wealth from the new product. By the opening of 1872 they had produced nearly 40,000,000 barrels of oil, and had raised their product to the fourth place among the exports of the United States, over 152,000,000 gallons going abroad in 1871, a percentage of the production which compares well with what goes to-day.[3] As for the market, they had developed it until it included almost every country of the earth—China, the East and West Indies, South America and Africa. Over forty different European ports received refined oil from the United States in 1871. Nearly a million gallons were sent to Syria, about a half million to Egypt, about as much to the British West Indies, and a quarter of a million to the Dutch East Indies. Not only were illuminating oils being exported. In 1871 nearly seven million gallons of naphtha, benzine, and gasoline were sent abroad, and it became evident now for the first time that a valuable trade in lubricants made from petroleum was possible. A discovery by Joshua Merrill of the Downer works opened this new source of wealth to the industry. Until 1869 the impossibility of deodorising petroleum had prevented its use largely as a lubricant, but in that year Mr. Merrill discovered a process by which a deodorised lubricating oil could be made. He had both the apparatus for producing the oil and the oil itself patented. The oil was so favourably received that the market sale by the Downer works was several hundred per cent. greater in a single year than the firm had ever sold before.