most bent double; yet still we persisted in making our way through it. At length we entered a wider space, and the low roof heightened; but, as we congratulated ourselves on this change, our torch was extinguished by a current of air, and we were left in utter darkness. The guides bring with them materials for renewing the light, but we had none—our only resource was to return as we came. We groped round the widened space to find the entrance, and after a time fancied that we had succeeded. This proved however to be a second passage, which evidently ascended. It terminated like the former; though something approaching to a ray, we could not tell whence, shed a very doubtful twilight in the space. By degrees, our eyes grew somewhat accustomed to this dimness, and we perceived that there was no direct passage leading us further; but that it was possible to climb one side of the cavern to a low arch at top, which promised a more easy path, from whence we now discovered that this light proceeded. With considerable difficulty we scrambled up, and came to another passage with still more of illumination, and this led to another ascent like the former.
After a succession of these, which our resolu-
