590    RIVERS    IN NEW-HAMPSHIRE.

after a meandering course, from its extreme source, of over thirty
miles, and a descent of over 1,000 feet. Its water power is valua-
ble, being over 1,500 horse power, now improved.

Mad River takes its rise among the mountains in Waterville,    j-

thence flowing southerly through the north-westerly part of Sand-
wich, the south-easterly part of Thornton, into Campton, where it
joins the Pemigewasset River.

Mascomy (or Mascoma) River has its rise in Dorchester, thence
flowing southerly through Canaan, it falls into the Mascomy Lake
in Enfield; from thence it runs a westerly course through Leba-
non, and discharges into the Connecticut, opposite Hartford,

Vermont. The water power is valuable before it reaches the lake,
which has been dammed, and affords a fine reservoir for manufac-
tories along the river from the outlet of the lake.

Its course is about twenty-five miles, and it waters a territory of
over 100,000 acres. From its source to its mouth, it has a fall of
over 600 feet, and an improved horse water power of 2,743.

Magalloway River. See Androscoggin River.

Merrimack River. This is one of the most important rivers'in    ^

New England, and it is said that it, together with its tributaries,
turns, more machinery than any river in the world. It is
formed by the junction of the Pemigewasset and Winnipiseogee
rivers, at Franklin. The Pemigewasset has its source in the White
and Franconia Mountains, and passes through, or borders the
towns of Lincoln, Woodstock, Thornton, Campton, Plymouth,

Holderness, Ashland, New Hampton, Bridgewater, Bristol, Hill,

Sanbornton, to Franklin. Its most important tributaries are Ba-
ker’s, Mad, Newfound, Squam, and Smith’s Rivers. It drains the
whole or part of thirty-three towns, covering an area of over 632,

000 acres, or nearly one thousand square miles. The Winnipiseo-
gee River is the outlet to Winnipiseogee Lake. It flows (and is
the dividing line) between Laconia and Gilford, and passes into
Lake Winnisquam; from thence between Tilton and Belmont, and
through the north-east corner of Northfield, and Southern part of    Jt

Tilton, to Franklin. It waters part or the whole of sixteen towns,
and, together with the lake, drains a territory of nearly 360,000
acres, or 562 square miles. From the lake to its confluence with
the Pemigewasset it has a rapid descent of about 232 feet, and fur-
nishes some of the best and most permanent water power in New-
Hampshire.