A line of trap-hills that rises along the shore seems as if it had strewed half its materials over the beach. The rugged blocks lie thick as stones in a causeway, down to the line of low ebb,--memorials of a time when the surf dashed against the shattered bases of the trap-hills, now elevated considerably beyond its reach; and we can catch but partial glimpses of the shale below. Wherever access to it can be had, we find it richly fossiliferous; but its organisms, with the exception of its Belemnites, are very imperfectly preserved. I dug up from under the trap-blocks some of the common Liasic Ammonites of the north-eastern coast of Scotland, a few of the septa of a large Nautilus, broken pieces of wood, and half-effaced casts of what seems a branched coral; but only minute portions of the shells have been converted into stone; here and there a few chambers in the whorls of an Ammonite or Nautilus, though the outline of the entire organism lies impressed in the shale; and the ligneous and polyparious fossils we find in a still greater state of decay. The Belemnite alone, as is common with this robust fossil,--so often the sole survivor of its many contemporaries,--has preserved its structure entire. I disinterred from the shale good specimens of the Belemnite _sulcatus_ and Belemnite _elongatus_, and found, detached on the surface of the bed, a fragment of a singularly large Belemnite, a full inch and a quarter in diameter, the species of which I could not determine. Returning by the track we came, we reach the bottom of the bay, which we find much obscured with sand and shingle; and pass northwards along its side, under a range of low sandstone precipices, with interposing grassy slopes, in which the fertile Oolitic meniscus descends to the beach. The sandstone, white and soft, and occurring in thick beds, much resembles that of the Oolite of Sutherland. We detect in it few traces of fossils; now and then a carbonaceous marking, and now and then what seems a thin vein of coal, but which proves to be merely the bark of some woody stem, converted into a glossy bituminous lignite, like that of Brora. But in beds of a blue clay, intercalated with the sandstone, we find fossils in abundance, of a character less obscure. We spent a full half-hour in picking out shells from the bottom of a long dock-like hollow among the rocks, in which a bed of clay has yielded to the waves, while the strata on either side stand up over it like low wharfs on the opposite side of a river. The shells, though exceedingly fragile,--for they partake of the nature of the clayey matrix in which they are imbedded,--rise as entire as when they had died among the mud, years, mayhap ages, ere the sandstone had been deposited over them; and we were enabled at once to detect their extreme dissimilarity, as a group, to the shells of the Liasic deposit we had so lately quitted. We did not find in this bed a single Ammonite, Belemnite, or Nautilus; but chalky Bivalves, resembling