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first range of the Allegheny Mountains. My experiment with the caves have been only partial explorations, consisting of traveling about a mile and a quarter down into the cave itself, and returning. The cave is ventilated from below, and stays at a constant 50 degrees no matter what the outside temperature may be. It is a series of rooms or galleries with narrow passages from one to another... in about the sixth room down, there is a large tree trunk which could not have come from the surface above as the stratosphere is almost completely free from local fault; and it could never have come down through the openings in the cave itself as they were small at the top, and kept getting progressively larger as they got deeper.

   “I traveled down as long as I could find comparatively easy travel -- about a 450-degree descent all the way -- and finally came to what I thought must be the end of the cave, for I could see no more openings in the rooms, but on closer examination found instead a bore, about six feet across, straight down into solid rock. I turned my flash downward and could see that it must have gone straight down for at least a hundred feet, the sides were perfectly smooth, and the shaft, or bore, in a perfect round -- no apparent irregularities anywhere -- I had no way of descending any further, so I retraced my steps back up through the different rooms to the top of the mountain where the cave opens to this world. I made discreet inquiries of several old timers in that region, and found that in 1915, or about that year, six survivors took gear and equipment, and spent a month in exploration of the cave, going 18 miles from the entrance, and down almost five miles below sea level.

   I have never gone back, but hope to some day in the future, with escort, equipment, and supplies. I'd certainly love to see the machine that made