THE town of Welsh Pool, the ancient Trellwng, is situated in a rich, open country, near to a small black pool, from whence it is supposed to derive its name. This “Llyn-dû” is included within the spacious demesne of Lord Powys, and is of such a contemptible area, that it seems a dissatisfactory origin of the name of the adjacent town. There is an old prophecy that it will at some period overflow and inundate the settlement; but for this no reason is assigned, and its distance, as well as the great elevation of some of the streets above its surface, render the prediction stupid and uninteresting. The town consists of a spacious avenue, commencing at the bridge which spans the canal, and ascending to the crown of a gentle eminence nearly one mile removed. The county court, market house, and flannel hall stand in the main street, and the church, a handsome gothic structure, is in one of the bystreets, at the foot of a steep bank, which nearly obscures the light on that side, and forms a most inconvenient place of burial. There is a chalice of pure gold, preserved in the plate chest of this parish, capable of holding one quart, and valued at one hundred and seventy pounds. It was presented to the church by Thomas Davies, governor of our African colonies, in grateful thankfulness to the Almighty for his safe return from that early grave of Europeans. The inscription sets forth the name and object of the donor, adding, that the gold was brought from Guinea. The houses are mostly built of brick, and the streets present a neat and respectable appearance. The long established trade in flannels has given this place the means of making an opulent display, which does not frequently fall to the lot of the inland towns of Wales. This was an ancient borough, contributory with Montgomery in choosing a representative, but was deprived of its franchise in the year 1728. The government is committed to two bailiffs, a recorder, and town clerk. The first are magistrates, whose jurisdiction extends over parts of several adjacent parishes.