I call this place a gorge, instead of a cave, because it is uncovered at the top, but probably originally it was covered. It is shaped like a pit cave minus a roof, and it reminded me of the Friedrichsteiner Eishöhle, and the Glacières de Saint-Georges and du Pré de Saint-Livres. It is entered by a long slope from the western end, the gorge turning northward further back. I estimated its width, at the bottom at some five to seven meters, at the top at some three to four meters; its length at some thirty meters and the deepest point we reached, at some twenty meters below the surface. These are guesses, however. In one place, a great rock slab overhangs the gorge. At nearly the lowest point of the rock floor, there is a hole which extends perpendicularly downwards some five or ten meters more; this opening is partly blocked up with fallen masses of rock which would make a further descent perilous. The north end of the gorge is also filled up with a mass of great broken rocks; in fact, the whole place is out of repair, as the rocks are cracked and creviced on both sides to a great extent. The rock is friable and seems to be all breaking up, or rather down, and I think there is some danger from falling stones, although I did not see any fall. There is a good deal of moss on the sides of the gorge, and on some ledges small evergreens are growing. The gorge is sheltered thoroughly from winds by its formation and position, and somewhat by the scrub forest surrounding it. There are several long, deep crevices a few meters further up the mountain side, and I think one of them is an extension of the main gorge. [Illustration: GORGE AT ELLENVILLE. From a Photograph by Mr. Davis. ] We found no ice. It generally lasts till about the beginning of September; and Professor Angelo Heilprin, and Miss Julia L. Lewis, of Philadelphia, have found plenty of it in July and August. But the ice had evidently now been gone for some time, for the temperature at the bottom of the gorge was about 11° C. at ten-thirty A. M. This was but little colder than the temperature v outside, which at ten-fifteen A. M. was 14° C. On returning to Ellenville, I learnt that there was another somewhat similar smaller gorge, some eight kilometers away, at a place called Sam's Point. This, however, is said to retain only snow, while in the Ellenville gorge much ice is sometimes formed, and icicles a couple of meters long are said to hang on the sides of the cliffs. The proprietor of the hotel told me he had heard of a cave which contained ice not far from Albany, at a place called Carlisle, on the Delaware and Hudson Railroad. FREEZING CAVE AND WINDHOLES NEAR FARRANDSVILLE.