The magnificent sections of the Archæan and Palæozoic rocks which are presented on the north-west coast of Scotland, have long been known to all British geologists. They occur principally in the counties of Sutherland and Wester Ross, from Cape Wrath on the north to Loch Kishorn on the south. They are not less striking in an artistic, than they are instructive in a scientific point of view. The height of the mountains, their abrupt and precipitous forms, and the thinness, or almost total absence of, superficial covering, are characteristics which combine with great variety and richness of colouring, to produce scenery which stands altogether by itself