Present Vicar, the Rev. T. J. Landon, presented in 1815 by the Dean and Chapter of Exeter.

GEOLOGY, BY DR. BOASE.

The greater part of this parish is situated on granite, including within its boundaries Roughtor and Brown Willy, the highest hills in Cornwall, the latter being 1368 feet above the level of the sea. The composition of this granite has been already noticed under the head of Advent: it affords few varieties, which may be owing to its offering few opportunities for examination.

The circumstance most attractive of attention is the great sterility of this extensive district; some few contracted spots are indeed brought into cultivation; some parts afford summer pasturage for cattle, and others turf for fuel; but by far the greater portion of the whole lies entirely unproductive. And this character belongs to the whole insulated patch of granite more than ten miles in diameter; and the church of St. Breward is the only one to be found on this extensive surface of perhaps from forty to fifty thousand acres; while nine churches are to be found on the granite district of the Land’s End, where this substratum, departing from its usual qualities, gives fertility to the soil.

The western extremity of this parish is fertile, resting on a peculiar kind of slate, which possesses geological interest. It may be seen at Combe, at Penrose, and at other places near the river Camel, and appears to be a

variety of mica slate, being composed of granular felspar, interlaminated with mica. It contains beds of dark purple felspar rock, very similar to that which abounds in the mining district in the western part of the county. This micaceous slate gradually passes into a thick lamellar rock, which extensively disintegrates and becomes argillaceous, exactly resembling the stone quarried for building at Bodmin.

[20] This is written in a different hand.


BRIDGERULE.

HALS.