...the slate, in a ridge near the summit. " This ridge," Mr. Prideaux states, speaking of the slate, " still preserves its laminar structure, but instead...hammer. In many places it is become ribband jasper." Mr. John Taylor, FRS, communicated to the Geological Society, in 1816, an account of the geological...

...degrees of compactness, and consequently, of specific gravity. At Cocks-tor, and White-tor, it comes in contact with clay-slate— at Brazen-tor, with...instead of its argillaceous aspect, has assumed that of Hint, and gives fire under the hammer. In many places it is become ribband jasper. Similar ribband...

...summit, where it ' comes in contact with the trapp. This ridge still preserves its laminar struc' ture, but instead of its argillaceous aspect, has assumed...hammer. In many places it is become ribband jasper." on the western side of Black Down, are concealed by the soil. A quartzose sandstone appears on Heathfield,...

...degrees of compactness, and consequently, of specific gravity. At Cock's-tor, and White-tor it conies in contact with clay-slate — at Brazen-tor, with granite. Clay-slate occupies the western side of Cock's-tor, and forms a ridge near the summit, where it comes in contact with the trapp. This ridge...