Campbeltown Loch is bounded on the north by Knock Scalbert, and on the south-east by Davar island, an isolated rock which stands sentinel-like sheltering the loch from the fury of the south gales. Knock Scalbert terminates in a ridge of basalt and basaltic greenstone, at the south of Kilkousland burying ground. The basaltic columns are exposed at low water and lie horizontally; while the basaltic greenstone is vertical, and contains between the columns partitions of impure hæmatic ironstone, varying from a quarter of an inch to seven inches in thickness. The basaltic greenstone has yielded to the action of the weather, leaving the ironstone standing like the unfilled cells of a honey-comb. Davar island is connected with the mainland by a low belt of sand and gravel, which is fast encroaching upon the channel of the loch, but is under water at high tide. On the south, rises Ben Gollion, nearly 1000 feet high, composed of schistose rock of various kinds. A succession of knolls rises out of the bare moor upon its summit, their interstices being clothed with moss and heather. On the west, at the head of the loch, stands the town of Campbeltown. On the shore, about a mile to the south of Campbeltown, the rock consists of a fine schist of a reddish grey colour, (and, as Prof. Nichol has pointed out*) somewhat lustrous, especially on the planes of lamination, and containing those lenticular masses of quartz, so common in the schistose rocks. Ascending the hill, This 250-word extract was created in the absence of an abstract