This parish is of a large extent, but for the most part barren, with abundance of wortzel and downs; but withal very populous, and not without some parcels of very good land, particularly from Trevannence to Perwennack, Tewan, Trevisick, Mewla, Meuthion; and neither are the barren grounds the least considerable, as producing large quantities of excellent tin, according to the Cornish saying, Stean San Agnes an guella stean in Kernow. (St. Agnes’ tin is the best tin in Cornwall.) As likewise in some places very good copper, with some quarries which produce excellent stone for building; and some of slate for roofing, but not of the best quality. The land lies very heathy and dry, but too much exposed to the raging north-west wind for trees to thrive on it. From the top of the first hill a part of Devonshire may be seen; also the North and South Seas; with thirty-four parishes. The Bowden or Boen Marks, called in sea charts the Cow and Calf, lie about two miles from the shore. LYSONS. An attempt was made by the Tonkin family to form a harbour at Trevaunance-Porth as early as the year 1632; it was attempted again in 1684, and, after a considerable expence had been incurred, again given up. In 1699, a third attempt was made with the assistance of Mr. Winstanly, the celebrated engineer; the works then constructed were destroyed by a violent storm in 1705. Mr. Tonkin, from whose notes this account was taken, again commenced his works in 1710, at the expense of £6,000; he formed the foundation with large masses of rock laid in hot lime made of lyas stone from Aberddaw, in South Wales. These works having become decayed, a jetty pier of moorstone was built about the year 1794, at the expense of £10,000, by a company of gentlemen, and a considerable trade in coals, lime, slate, &c. is now carried on with Ireland and Wales. The proprietors are enlarging the harbour, and rendering it more commodious and safe for shipping. A small stream of water which rises in the manor of Tywarnhaile, turns several stamping mills in Trevaunance Comb. The market, for which there does not appear to be any charter on record, has been held from time immemorial for all sorts of wares and provisions, except corn. In 1706, Mr. Tonkin procured the Queen’s patent for a weekly market and two fairs; but after the writ of _ad quod damnum_ had been duly executed, and the Queen’s sign manual obtained, the grant was revoked in consequence of a petition from the inhabitants of Truro. A small market is nevertheless kept up; the market day is Thursday.