The view from the rocks is wonderfully beautiful and includes both the entrance to the cave, with its flowing stream, and the receiving basin with its bounding stream. But it was growing late in the afternoon, and there was another cave whose entrance was in the perpendicular wall above the end of the path by which we had come. This entrance could be reached by a dilapidated ladder; assisted by a forked pole and supplied with candles and matches, my nephew and I achieved the ascent with not much trouble. Here we found what is, no doubt, one of the oldest caves known. The original cavity is nearly filled up with masses of onyx--colorless crystal and white striped with pale shades of grey. The cave is perfectly dry and freshly broken surfaces in some places show signs of deterioration, so how can we venture even a guess as to the time it has required to first excavate the cave and then fill it with masses of rock deposited by the slow drip process, and later, for that crystalline rock in a now dry atmosphere to present a perceptible weakening? We went as far as passages could be crawled into, which was no great distance, and at once started on our uncertain descent of the ladder; but this was not a matter of so much concern as the upward trip, for the success of which some doubts were entertained; for going down is always naturally a less certain matter, as one can fall if more desirable means are unsuccessful, and I have unexpectedly reached many coveted points in this simple manner. Taking a last look at Greer Spring with its cave river, grey walls, gay with foliage, and all the harmony of color and form combined in the narrow canon that was once the main body of a great cave, I recalled views on the Hudson River and in the mountains of Maryland, Virginia and Pennsylvania, and others out in the Rocky Mountains in Colorado and the Wausatch in Utah, but amid all their wonderful grandeur and famous beauty, could remember no spot superior to this masterpiece of the Ozarks. The proprietor of the Spring and a thousand acres of land adjacent, took personal possession on the day of Lincoln's first election, to establish a home. The sun having failed to consider our wishes was now about to disappear in a gleaming flood of gold, so the return to Thayer that night was out of the question. Our host and his wife observed that fact and cordially invited us to remain for the night and as much longer as we would like to, but being unwilling to impose on kindness to such an extent, we returned to the hotel in Alton, and now urgently advise that those who ever have an opportunity to enjoy a moonlight drive through the Ozark forests should not let it pass unimproved. OTHER CAVES NEAR BY. About twelve miles from Alton there are three other caves worthy of attention. Two of these are known only as The Saltpetre Caves, and the third as The Bat Cave.