Page:Transactions of the Geological Society, 1st series, vol. 3.djvu/381

 adjoining rock in slender ramifications. I found some slips where nothing appeared but the line of separation.

§ 41. The lyas formation of this part of the district is bounded on the south by a line commencing at Combwich, and passing through Bondstone and Stringston Church to the point on the coast where I have said the red rock begins, keeping a little to the north of Putsham. The road from Knighton to Shurton Bars crosses a small valley between two hills composed of lyas, and in the bottom of this valley the red rock appears, accompanied as usual by its grey beds. This is one of the places where there is apparently a distinct instance of the red rock alternating with the lyas; for the lyas on each side of the valley and the red rock in the bottom all dip towards the same point. This however is not conclusive, for the actual contact is not seen, and the same source of error which I discovered in another place, and which I shall presently mention, may exist here: the valley stretches in a north-westerly direction and terminates on the shore near Little Stoke. I went to this place expecting to see the alternation more distinctly in the cliff; that however is wholly composed of lyas, but on proceeding along the shore in the same direction I discovered a small portion of the red rock appearing above the sand, with the lyas strata close to it on one side, but whether they lie above or below the red rock it is impossible to say, for they are, within the space of a few yards, both vertical and inclined, and dip to the north and to the south.