MIDDLETON-in-TEASDALE, a parish in the southwestern division of DARLINGTON ward, county palatine of DURHAM, comprising the market-town of Middleton, the chapelry of Egglestone, and the townships of Forest with Frith, and .Newbiggin, and containing 2866 inhabitants, of which number, 1263 are in the town of Middleton, 10 miles (N.W.) from Barnard-Castle, and 253 (N. N. W.) from London. The town is irregularly built, and scattered along the sides of hills which surround, in a somewhat oval form, an extensive green: the environs abound with all the varied scenery of rocks, waterfalls, and chasms of immense depth, with fertile valleys and sloping hills, enriched by the gentle flow of the Tees, in its course through this county to the German Ocean. About two miles above the town is Wynch bridge, seventy feet in length and two in width, thrown from rock to rock across a tremendous chasm sixty feet in depth, and guarded on each side by a hand-rail; and higher up the river are the stupendous cataracts of High Force and Caldron Snout. Several of the inhabitants are occupied in raising and manufacturing the lead-ore produced in the northern part of the parish in immense quantities. The market is held on Saturday, and every alternate market is numerously attended by the miners, who are paid once a fortnight: there are fairs on the third Thursday in April, July 7th, and on the second Thursday in September. The town hall, a neat edifice with a marketplace beneath it, was erected at the expense of the Earl of Darlington. Courts leet and baron are held annually for the manor. The living is a rectory, in the archdeaconry and diocese of Durham, rated in the king's books at £25.17. 1., and in the patronage of the Crown. The church, dedicated to St. Mary, is an ancient but small edifice; the tower is several yards distant from the rest of the building. There are places of worship ffor Baptists, Independents, and Methodists. Christopher Stephenson and others bequeathed a small estate, now producing £22 per annum, for which eight boys are instructed. A National school, erected and partly supported by the London'Lead Company, especially for the children of their own labourers, from six until twelve years of age, who pay 1*. each per quarter, affords instruction to one hundred and thirty children, exclusively of one hundred Sunday scholars; the other children pay two shillings and sixpence quarterage; a small library is attached to the school, for the use of the Company's workmen, to whom the books are lent.