Titusville, a city of Crawford co., Pennsylvania, on Oil creek, 85 m. N. by E. of Pittsburgh, and 40 m. S. S. E. of Erie; pop. in 1S70, 8,639; in 1875, about 10,000. It is in the midst of a fine dairy region, and is surrounded by hills. The streets are broad, straight, and well paved; the dwellings are of wood and brick, and are surrounded by gardens; the business blocks are of brick. It is well drained, lighted with gas, and has Holly water works. It communicates with Buffalo, Erie, Pittsburgh, and other points by means of the Dunkirk, Alleghany Valley, and Pittsburgh, the Oil Creek and Alleghany River, and the Union and Titusville railroads. Titusville is the chief place in the oil region, and owes its prosperity to the petroleum wells in the vicinity. It had only 300 inhabitants in 1859, when the production was commenced. It contains seven oil refineries, using 0,000 barrels of crude petroleum daily; three oil-barrel factories, besides a number of cooper shops, together producing 3,000 barrels a day; four iron works and founderies, manufacturing steam engines and boilers, stopcocks and pipe fittings, and oil-well tools, and also doing brass casting and finishing; two sulphuric acid factories, two flouring mills, two lager-beer breweries, four banks, a high school, four ward schools, two Roman Catholic schools, two daily and weekly newspapers, and 12 churches.