Subterranean ice was brought to my notice by a mere accident, late in the month of September, 1877, while on a descent of King's Ravine, on Mount Adams, in the White Mountains of New Hampshire. We had just descended the rock wall of the mountain and had reached the head of the gorge, when my companion, Mr. Charles E. Lowe, the well-known Appalachian guide of Randolph, suddenly said to me, "Would you like a piece of ice? I can get you some presently." I answered, "Certainly," wondering where he would find any. When we got among the big boulders, which form so rough a path for the traveler at the bottom of the ravine, Mr. Lowe climbed down under one of the biggest, and presently reappeared with a good sized lump of ice. I was much impressed at finding ice at the end of the summer in this gorge, when for months past no ice or snow had been visible on the surrounding mountains. I noticed also the peculiar, flaky formation of the ice, and saw at once that it was something new to me, and in fact it was a piece of what I have since learned to know as "prismatic ice." GLACIÈRE NEAR BRISONS. In the summer of the year 1880, I traveled through the Alps, with a friend from Philadelphia. On the 17th of September, we drove from Geneva to Bonneville. Thence we started on foot without a guide, and as a result got lost in the woods, from which we only extricated ourselves at nightfall. After retracing our steps to Bonneville, we were glad to find a man to show us the way we should have taken, and finally reached the little village of Brisons in France, where we slept. The next day we took a guide and made our way across the mountains to Annecy, at one spot going out of our direct route to see a place spoken of by the natives as a glacière. It was a little pit, and at the base of one side thereof was the mouth of a small cave into which we could not see any distance. At the bottom of the pit lay a mass of dirty snow and ice to which we did not descend, as the sides of the pit were sheer and smooth, and there was no ladder. This pit seemed to be more of the nature of a gully filled with winter snow, than a true rock cave containing ice. THE GLACIÈRE DE L'HAUT-D'AVIERNOZ.