Luzerne, a N. E. county of Pennsylvania, intersected by the north branch of the Susquehanna river, and also drained by the Lackawanna, Nescopeck, Huntingdon, and Wapwal-lopen creeks; area, 1,427 sq. m.; pop. in 1870, 160,915. The surface is mountainous, but diversified by many beautiful and fertile valleys, among which is that of Wyoming. It is traversed by several ridges of the Alleghanies and the Wyoming and Moosic mountains. It contains very rich and extensive coal fields. A branch of the state canal and several important railroads pass through it. The chief productions in 1870 were 104,297 bushels of wheat, 115,339 of rye, 368,537 of Indian corn, 475,-988 of oats, 197,160 of buckwheat, 573,322 of potatoes, 38,555 lbs. of wool, 1,068,565 of butter, and 58,145 tons of hay. There were 7,431 horses, 12,306 milch cows, 9,210 other cattle, 12,051 sheep, and 10,430 swine. There were 886 manufacturing establishments, having $9,-380,270 capital, and an annual product of $17,-493,463; the most important were 39 manufactories of carriages, 5 of cars, 58 of clothing, 24 of furniture, 4 of gas, 3 of gunpowder, 23 of iron, 18 of machinery, 24 of saddlery and harness, 30 of tin, copper, and sheet-iron ware, 20 of cigars, 21 tanneries, 10 currying establishments, 3 distilleries, 7 breweries, 30 flour mills, 7 planing mills, and 74 saw mills.