Merrimack, a river of New England, formed by the junction of the Pemigewasset and Win-nepiseogee rivers at Franklin, N. II. From this point the river runs S. 78 m. to Chelmsford, Mass., and thence E. 35 m. to the Atlantic ocean at Newburyport. Its tributaries in New Hampshire are the Contoocook, Soucook, Suncook, Piscataquog, Souhegan, and Nashua; in Massachusetts, the Concord, Spiggot, Shaw-shine, and Powow. The principal tributaries are on the right side of the river. There are . numerous falls in the Merrimack, and the river furnishes an immense water power, the employment of which in manufacturing has created the cities of Lowell and Lawrence, Mass., and Nashua and Manchester, N. II. Its width varies from 50 to 150 yards. It is navigable to Haverhill, Mass., 18 m. from the sea. The name is of Indian origin, and is derived from a word signifying a sturgeon.
Merrimack, a S. central county of New Hampshire, intersected by the Merrimack river, and its affluents the Contoocook, Soucook, Suncook, etc.; area, about 700 sq. m.; pop. in 1870, 42,151. The surface is broken and in many parts hilly; Mt. Kearsarge is in the N. W. portion. It is traversed by the Concord, the Suncook Valley, the Boston, Concord, and Montreal, the Concord and Clare-mont, the Contoocook River, and the Northern railroads, and the Bristol branch. The chief productions in 1870 were 31,404 bushels of wheat, 189,788 of Indian corn, 103,525 of oats, 472,131 of potatoes, 144,673 lbs. of wool, 745,386 of butter, 191,298 of cheese, 102,831 of maple sugar, and 78,278 tons of hay. There were on farms 4,887 horses, 10,459 milch cows, 5,619 working oxen, 14,127 other cattle, 34,479 sheep, and 3,991 swine. The number of manufacturing establishments in 1870 Avas 414; capital invested, $4,896,995; value of products, $7,627,676. The most important were 7 cotton mills, 10 woollen mills, 3 paper mills, 36 saw mills, 6 flour mills, 12 tanneries, 11 currying establishments, 3 manufactories of agricultural implements, 3 of leather belting and hose, 2 of boots and shoes, 17 of bricks, 20 of carriages and wagons, 16 of clothing, 6 of furniture, 4 of hosiery, 3 of iron castings, 6 of machinery, 4 of organs, 10 of saddlery and harness, 4 of sash, doors, and blinds, 1 of silverware, and 5 of wooden ware.
Capital, Concord, which is also the capital of the state.