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48 more particularly or on some very florid drop-scene. These colours are due to some low form of vegetation which is spread like a wash over the face of the stratified rock, but it seems surprising, since one is accustomed to associate colour with light, that in the absence of all sun they should not only exist, but be so very brilliant. I have never seen anything like such vivid hues on the surface of rock or cliff exposed to the light of day, nor, indeed, in any landscape, if flowers and the autumn tints of leaves are excluded. Gaudily painted stage scenery, some enchanted or robber's cavern in a pantomime—Ali Baba's, for instance—is really the best comparison I can think of, nor shall I ever again think these exaggerated. Nature is really harder to outdo or burlesque than one may fancy—even on the stage, where the effort is so constantly, and, one would swear, successfully made.

In shape these caverns are long and narrow—throatal, one might call them—and the sea, with the many weird and uncouth noises that it makes as it licks, tongue-like, in and out of them, helps to suggest this resemblance. Though their height is really but moderate, yet, owing to the narrowness of their walls, they have the appearance of being lofty, especially near the entrance, or where, after descending till it nearly reaches the water, the roof is suddenly carried up again. For the most part, however, the height decreases gradually, with the breadth, till at length the cave ends in a low, dark tunnel, which the sea