the way he had come, and I completed the tour of the grotto, finding the same difficult passage, and the same ice beauties, all the way round. Having squeezed ourselves out again through the narrow hole, we now passed between the two gigantic columns, and found that the sea of ice became still broader and bolder. I much regret that I neglected to take any measurements in this part of the cave; but farther down, where it was certainly not so broad, I found the width of the ice to be 75 feet. It was throughout of the crystalline character which prevails in all the large masses in the glacières I have visited. For some distance beyond the columns, we found neither stalactites nor stalagmites--indeed, I forgot to look at the roof--until we came to the edge of a glorious ice-fall, down which Christian said it was impossible to go--no one had ever been farther than where we now stood. I have seen no subterranean ice-fall so grand as this, round and smooth, and perfectly unbroken, passing down, like the rapids of some river too deep for its surface to be disturbed, into darkness against which two candles prevailed nothing. The fall in the Upper Glacière of the Pré de S. Livres was strange enough, but it was very small, and led to a confined corner of the cavern; whereas this of the Schafloch rolls down majestically, cold and grey, into a dark gulf of which we could see neither the roof nor the end, while the pieces of ice which we despatched down the steep slope could be heard going on and on, as M. Soret says, _à une très-grande distance_. The shape, also, of the fall was very striking. Beginning at the left wall of the cave, the edge ran out obliquely towards the middle, when it suddenly turned and struck straight across to the right-hand wall, so that we were able to stand on a tongue, as it were, in the middle of the top of the fall. To add to the effect, precisely from this tongue or angle a fine column of ice sprang out of the very crest of the fall, rising to or towards the roof, and to this we clung to peer down into the darkness.