in the heaps of fragments piled round the shafts; but they are better and more clearly illustrated in the cliffs near Trewaras Head.
It would occupy two much space to enter into details on this important subject. It may, however, be noticed that both the granite and the slate gradually pass into each other; and that they appear to differ very little in their mineral composition. These facts seem to explain, in a satisfactory manner, the nature of granite veins. For, if both rocks have a similar composition, and have been produced at the same time, the form, position, contents, and other circumstances of these veins, are no longer perplexing.
ST. BREWARD.
HALS.
St. Breward is situate in the hundred of Trigg, and hath upon the north Advent, south Blisland, east Altar Nun, west St. Tudy. There was not such parish or church extant in Cornwall at the time of the Norman Conquest as Brewer; probably it was taxed under Tudy. In the inquisition of the Bishops of Lincoln and Winchester, in order to the Pope's annats, 1294, Ecclesia de Bruerd, in Decanatu de Trig-minor-shire, was valued at 7l. vicar ejusdem 20s. In Wolsey's inquisition, 1521, and Valor Beneficiorum, 8l.; the patronage in the Dean and Chapter of Exeter; the incumbent Downes, the rectory or sheaf, in , and the parish rated to the 4s. per pound land-tax, 1696, by the name of Brewer, 111l. 12s. The present name of this church is celebrated in memory of its founder, William Brewer, (son of William Lord Brewer, Baron of Odcombe in Somerset,) who was consecrated Bishop of Exeter, 1224, and was afterwards, by King Henry III., sent on divers
