PONT-Y-POOL, a market-town and chapelry in the parish of TREVETHAN, upper division of the hundred of ABERGAVENNY, county of MONMOUTH, 20 miles (S. W; by W.) from Monmouth, and 146 (W. by N.) from London. The population is returned with the parish. This town, the name of which is a corruption of Pont ap Howel, is situated on a declivity between the river Avon and .the canal to Newport, near the base of the bold elevation of Mynydd-Maen. It appears to have arisen out of the village of Trevethin, and to have owed its present importance to the inventive genius of Thomas Allgood, a native of Northamptonshire, who made some discoveries here of considerable advantage to the manufactures of the country, in the art of imitating japan varnish, from which the articles were denominated Japan ware: in addition to which his son introduced and carried on here for a considerable time, a branch of art in cleansing and polishing iron, which produced articles of such excellent workmanship, as eventually to obtain for them the name of Pont-y-pool ware. The prosperity of the town was completed, about the close of the sixteenth century, by the establishment of ironworks, under the auspices of Capel Hanbury, to which the mineral productions of the county, with, the numerous forges and furnaces, and the more modern accommodations of conveyance, both by land and water, have essentially contributed. The surrounding scenery is of a rugged character, the prospect from some points being exceedingly extensive. The town is situated on the great basin of coal and iron stone which extends westward through Wales to Pembrokeshire; it is irregularly built, and consists chiefly of two streets, which contain many neat, but detached, houses; the streets are partially Macadamized, lighted with gas, and well supplied with water from the small river Avon, and the adjacent springs: many good houses are in.progress of erection, and the town is in a state of moderate improvement. In the vicinity is a great number of new buildings for .the accommodation of agents to the differ r At companies, also. numerous cottages for workmen, the walls of which are invariably whitewashed. The extensive iron-works were begun in .1565, and enlarged, by John Hanbury, Esq., who, in addition to various improvements in machinery, discovered the method of making sheet-iron by the compression of rollers, .and of casting iron .with tin. Numerous forges and iron-mills, for making tin plate, are continually at work. The furnaces of the British Mining. Company .are situated at the Yarteage, about three miles distant from the town. A great part of the soil in this district is upon limestone, and the sheep fed here yield excellent mutton. Ahout a mile southwest of the town, at the;base of the mountain called Mynydd-Maen, a level and colliery have been lately opened, which drain ten veins of coal forty-two feet in thickness, with an equal number of iron-stone, one hundred feet thick, whence issues a stream of chalybeate water. The manufacture of the Japan and Pont-y-pool ware is still carried on, though it is now rivalled by that of Birmingham. The chief articles of trade are, iron of every description and quality, of which this parish is capable of sending thirty thousand tons annually to market; and coal, in which the neighbouring hills abound: these works, with the lime-kilns, afford employment to many thousand persons. There is also some business in the leather trade, and a good brewery. Facility of conveyance is supplied by several tram-roads, and, to the port of Newport, by the Monmouthshire and Brecon canals, which pass through Pomy-pool, and form a junction at the village of Pent-y-Moil. The market is on Saturday, and, during the summer, there is an additional market on Wednesday: fairs are on April 2nd and 22nd, July 5th, and October 10th, for horses, cattle, sheep, cheese, &c. The government of the town is under the jurisdiction of the county magistrates, of whom one is resident; and petty sessions for the upper division of the hundred of Abergavenny are held here; as also an annual court leet for the lords of the manors of Wensland and Brynwyn, at which the stewards preside. The living is a perpetual curacy, united to that of Trevethan, in the archdeaconry and diocese of Llandaff, endowed with £2200 parliamentary grant, and in the patronage of the Chapter of Llandaff. The chapel, dedicated to St. James, is a very ancient building, but it has recently undergone such considerable repairs as to make it a neat and commodious structure: it contains four hundred and fifty free sittings, the Incorporated Society for building and enlarging churches and chapels having contributed £350 towards defraying the expense. There are four places of worship for Baptists, four for Wesleyan Methodists, three for Independents, and. one each for the Society of Friends, and Roman Catholics; some of these are situated on the adjacent hills.