MARY'S-ST, otherwise MAENCLOCHOG (MAEN-CLOCHOG), a parish, in the union of NARBERTH, and comprising the townships of Maenclochog and Vorlan, the former in the hundred of KEMMES, and the latter in the hundred of DUNGLEDDY, county of PEMBROKE, SOUTH WALES; and containing 503 inhabitants, of which number 456 are in the township of St. Mary's, or Maenclochog, 10 miles (N. b'r W.) from Narberth. This place derives its name " Maandecheg" from a large stone, several tons in weight, so nicely poised upon three small upright stones, as to vibrate on the slightest touch, and upon its being struck, to sound like a bell: this curious relic was destroyed by some of the inhabitants, who, induced by the vain expectation of finding some hidden treasure, blew it up with gunpowder. The parish, which is surrounded by those of Nevern, Morvil, Henry's-Moat, and Llanyeeva, is situated in a mountainous district, and comprises above 1000 acres, whereof 200 are arable, the same number pasture, and about two woodland; the -chief produce barley and eats. Nearly the whole of the irrecelly mountain, the higLett in South Wales, is within its limits: the ancient Welsh name of this mountain is Presvrylva, signifying "a place of residence," and is derived from its having been the resort of the natives, on account of its security, in the intestine wars by which this part of the principality was agitated during the earlier periods of its history. The mountain was once well clothed with forest timber, affording shelter to such as took refuge in its recesses, but now presents a bare and sterile aspect, dreary in its appearance, and exhibiting some *mall vestiges of old encampments, probably those constructed by the natives. The rateable annual value of the whole parish has been returned at £999. 13., including £812. 13., for the portion exclusively of the hamlet of Vorlan. The village, which is of considerable size, occupies the summit of a bleak and barren eminence; and the inhabitants, with the exception of such as are employed In agriculture, are engaged in working a quarry of slate of good quality. A fair is held on the 18th of September, for cattle, sheep, &c., and is in general well attended. The living Is a discharged vicarage, endowed with £400 royal bounty, and £400parliamentary grant present net income, £70; patron, Hugh Webb Bowen, Eeq.: the tithes have been commuted for a rent-charge of £150, of which £100 are payable to Mr. Bowen, and £50 to the vicar, who has also a glebe of two acres, valued at £2. 10. per annum. The chapels of Llandilo and Llangolman were formerly chapels of ease attached to the vicarage, but they have been endowed, and subsequently augmented with Queen Anne's Bounty, and are now perpetual curacies, the two districts having been erected into distinct parishes. The church, dedicated to St. Mary, and situated in the centre of the village, is a neat edifice, rebuilt by subscription within the last fifty years; all the seats are free. There are two day schools, where about 90 children are instructed at the expense of their parents; and two Sunday schools, in which about 150 males and females are gratuitously taught by the dissenters, books being supplied by the Bible Society.