424 PROCEEDIiJGS OF THE GEOLOGICAL SOCIETY. 



way ; and similar gravels were exposed in the neighbourhood near 

 Slancombe. On the hill east of Whiddon Park, in a field north-west 

 of Ilppercot Farm, and by the side of the highway east of the same, 

 about 840 feet above the sea-level, there are deposits of angular 

 and rolled fragments of granite, schorl, and black siliceous vein-stuff; 

 and on the opposite side of the Teign, against the western side of 

 Hunt's Tor, there are considerable deposits of the same character con- 

 taining large blocks of granite. The subjacent rock at all the above 

 localities is granite. 



On the northern side of the valley of Easter Brook, between Shil- 

 stone Farm (by Bradmere Pool) and the Drewsteignton and Oke- 

 hampton Eoad, about 850 feet above the sea-level, the " Old Gravels " 

 are seen in a bed, about five feet in thickness, overlying the Carbo- 

 niferous rocks and probably also the adjoining granite. They consist 

 of fragments of rolled and angular granitic and schorlaceous rocks ; 

 near the surface a very few fragments of transported Carboniferous 

 rocks occur ; and it is questionable whether the last are part of the 

 " Old" or of the '^ contour" gravel: probably they are of the later 

 deposit. At a quarry near Sandsgate (about 750 feet above the sea- 

 level) half a mile south-west of Bradmere Pool, a gravel, probably 

 the " Old Gravel," is deposited on the surface of the granite rock, 

 partly in fine laminae, which dip at an angle of about 5° l^.N.W., 

 showing the direction in which the granite has been elevated since 

 the deposition of the gi^avel. Near this spot and in the adjoining 

 Eushford Woods, and skirting the Teign to the gorge at Hunt's Tor, 

 many boulders occur, mostly of granite, but occasionally of Car- 

 boniferous rock ; of these the largest is a granite block in Rushford 

 wood, about 30 feet long, 16 feet high, and of irregular width, weigh- 

 ing abont 200 tons. 



Bradmere Pool (70 feet deep) is the site of an old tin-stream 

 work, flooded by the closing of the adit about seventy years ago ; and 

 other tin-grounds have been worked in its vicinity. The gravel in 

 the tin-grounds on the upper part of the Easter Brook consists of 

 fragments of Carboniferous and granitic rocks ; and in the lower part 

 fragments of porphyritic rocks also occur. 



At Hunt's Tor, about 660 feet above the sea, and 200 above the 

 Teign, the Old granitic Gravels are exposed on the westerly side, 

 and extend nearly to the summit of the Tor, and consist, it is be- 

 lieved, entirely of granitic rock ; fragments of porphyritic and Car- 

 boniferous rocks, similar to those found in the contour-gravels and 

 in tin-grounds near Parford, to the west, have not been detected 

 there. The eastern side of Hunt's Tor is granite, save where it joins 

 Piddleton Down, where it is formed of Carboniferous rocks traversed 

 by elvan veins ; and the slope on this side is almost entirely covered 

 by fragments of Carboniferous rocks. The width of the gorge from 

 the summit of Hunt's Tor to the point in Whiddon Park, nearly on 

 the same level, where the granite and Carboniferous rocks are in con- 

 tact, is about 290 yards. On the side of the hills sloping down to 

 the left bank of the Teign, between Hunt's Tor and the turn to 

 Clifford Bridge, granite is not seen, either as gravel or as transported 



