The _Merrimack_ rises in New Hampshire, and has two principal branches: one of them being the outlet of lake Winnipiseogee. The north or longer branch is called the Pemigewasset, and has its source near the Notch of the White Mountains. At its junction with the outlet of the lake this stream takes the name of Merrimack, and flows south seventy-eight miles to Chelmsford, where it enters Massachusetts, through which it runs east to the sea. Its whole course is about two hundred miles. There are numerous falls in the New Hampshire portion. Though not equal to the Connecticut for fine scenery, the Merrimack is a noble and beautiful stream. Its waters are pure and salubrious, and on its borders are many flourishing towns. Its name in the Indian language signifies a _sturgeon_. Its width varies from fifty to one hundred and twenty rods; it receives many minor streams and rivers, which form the outlet of several small lakes. Its obstructions have been partly remedied by locks at different places, and there is a good navigation for vessels of two hundred tons to Haverhill. Two chain bridges cross the river at Newburyport, and Salisbury. The _Piscataqua_ has its rise and its whole course in New Hampshire. It is formed by the junction of several small streams in a wide and deep bed; the longest of these streams is Salmon Fall river, which forms part of the boundary between New Hampshire and Maine. The _Connecticut_ is the largest river of the New England States. It rises beyond the high-lands which separate the states of Vermont and New Hampshire from Lower Canada. It has been surveyed to the head spring of its northern branch, about twenty-five miles beyond the forty-fifth degree of latitude, from which to its mouth it flows upwards of three hundred miles through a well inhabited country. Its navigation is much interrupted by falls. It receives several rivers, as the Chicapee, Deerfield, Miller’s, and Farmington. At Hartford it meets the tide, whence it passes on in a winding course, till it falls into Long Island sound, between Saybrook and Lyme. This river is navigable for sloops, as far as Hartford, fifty miles distant from its mouth; and the produce of the country, for two hundred miles above it, is brought thither in flat-bottomed boats, which are so light us to be portable in carts.