St. Mewan measures 2,240 statute acres. Annual value of the Real Property, as £. _s._ _d._ returned to Parliament in 1815 1633 0 0 Poor Rate in 1831 322 18 0 Population, { in 1801, | in 1811, | in 1821, | in 1831, { 780 | 626 | 1174 | 1306 giving an increase of 67 per cent. in 30 years. The fluctuations in amount of population in this parish are owing to the occasional working or discontinuance of Polgooth mine. Present Rector, the Rev. William Hocker, jun. instituted in 1801. THE GEOLOGY, BY DR. BOASE. The northern part of this parish extends over the central mass of granite, in the form of a long narrow stripe, the base of which is about one mile north of the church. All the remainder of the parish consists of compact and schistose felspar rocks, traversed by beds of porphyry, and intersected by numerous veins of tin and copper, more particularly of tin. On the whole, this parish bears a very close geological resemblance to St. Austell. See p. 401 of this Volume. ST. MICHAEL CARHAYES. HALS. St. Michael Cary-hayes rectory, is situate in the hundred of Powder, and hath upon the north Creed and St. Ewe, south the British Ocean, east Goran, west Verian. In the Domesday Tax, 1087, this parish was taxed under the names of Cari-crougi. At the time of the Inquisition of the Bishops of Lincoln and Winchester, into the value of Cornish Benefices, 1294, this church was not endowed, if extant; afterwards it was, by the Cornwalls, Hendowers, or Tregarthins, of Court in Branell, and dedicated to God in the name and honour of St. Michael the Archangel; which gentlemen afterwards wholly impropriated or appropriated their churches of St. Stephen’s in Branell, and St. Denis, to the rector of this St. Michael Carhayes; the patronage now in Tanner; the incumbent Tanner. In Wolsey’s Inquisition, 1521, the rectory of those three churches was valued at £27. 10_s._ 6½.; the vicarages £14. This parish was rated to the 4_s._ per pound Land Tax, temp. William III. 1696, by the name of St. Michael Cary-hayes, £64. 8_s._ Tre-vanion, alias Tre-vanyon, in this parish, which place gave name and original to an old British and knightly family of gentlemen, surnamed de Trevanyon, now in possession thereof, and also of Cary-hayes aforesaid; which latter came to those gentlemen’s ancestors by marriage with the daughter and heir of Arundell, lord thereof, temp. Edward III.; since which time they have flourished, at Cary-hayes and Trevanion in great fame, wealth, and reputation in their country. Who have also had bestowed upon them, as tradition saith, by their princes, for their good services, the lands of several rebels and traitors, forfeited by attainder of treason, in those parts; in the York and Lancaster wars, and Flamock’s, Arundell’s, and other Cornish rebellions.