BLYTH, or BLYTH-NOOK (SOUTH), a chapelry and sea-port (small), partly in the parish of HORTON, but chiefly in the parish of EARSDON, eastern division of CASTLE ward, county of NORTHUMBERLAND, gi miles (E.S.E.) from Morpeth, 13 (N.N.E.) from Newcastle, and 283 (N.N.W.) from London, containing, with the lordship of Newsham, and exclusively of that part of the town which is in the parish of Horton, 1805 inhabitants. The town is situated at the mouth of the river Blyth, where it empties itself into the North sea; and, until of late years, consisted of a few narrow and irregularly formed streets. Considerable improvement, however, has been mad"; but this has taken place principally in that part of it which is in the pansn of Horton, owing to the tenure of property in a manor being less objectionable than that in the parish of Earsdon; so that the entire population of the town and its environs may be estimated at about three ^thousand. The trade of the port consists principally m tne exportation of coal, and the importation of various articles of local consumption. The coal trade, during tne siege of Newcastle in 1644, flourished greatly, but subsequently experienced considerable depression; it however, revived, and now furnishes occupation to nearly one hundred vessels, of the aggregate burden of upwards of fifteen thousand tons. The produce of the Bedlington iron-works, which are about three miles distant, is brought down the river Blyth to this port, where the articles are shipped for London. Muscles abound on the coast. The harbour, the entrance to which is at all times free from obstruction, is extremely secure, even during the most tempestuous weather. The tide formerly flowed over an extensive waste on the western side of the harbour, but, with a view to counteract this, a quay has been partly formed on the margin of the river; the undertaking, however, has been advisedly suspended, from an opinion that the free admission of the tide is essential to the preservation of the harbour. A dry dock, capable of receiving four vessels, was constructed in 1811: the custom-house is a branch of the establishment at Newcastle. A circular stone lighthouse was built by Sir M. W. Ridley, in 1788; and there is a beacon-light, called the Basket Rock-light. A detachment of troops from Tynemouth was stationed here during the late war with France, in a small fort commanding the mouth of the harbour. A chapel of ease was built by Sir M. W. Ridley, in 1751, the right of presentation to which belongs to the present baronet: attached to it is a burial-ground. A meeting-house for Presbyterians was built in 1814, one for Wesleyan Methodists in 1815, one for a congregation of the New Connexion of Methodists in 1818, and one for Scotch Seceders in 1827- George Marshall, author of a miscellaneous volume of poems, and "Letters from an Elder to a Younger Brother," was born at this place.