"I was visiting friends at Tunbridge Wells," says Mr. Newnham, "and went out one evening, entomologizing. As I crossed a stile into a field, on my way to a neighboring wood, a voice said distinctly in my right ear: 'You'll find "Chaonia" on that oak.' This was a very scarce moth, which I had never seen before, and which most assuredly I had never consciously thought of seeing. There were several oaks in the field, but I instinctively walked up to one, straight to the off side of it, and there was the moth indicated."[36] [36] _Proceedings of the Society for Psychical Research_, vol. xi, p. 411. The psychological explanation of this is simple enough, and is equally applicable to similar, if more sensational, hallucinations widely heralded as of supernatural character. It is manifestly absurd to suppose that a "spirit" announced to the entomologizing clergyman the presence of the rare and greatly sought-after moth which it was his good fortune to capture. But it is not at all absurd to suggest that quite likely, although he had consciously forgotten all about it, he had at some time seen Chaonia, or an entomological text-book picture of Chaonia; that he had subconsciously caught a glimpse of it, fluttering across the field and settling on the oak, and that his subconscious recognition of its identity had set in motion the proper mental mechanism to notify his upper consciousness of a fact in which it would naturally be much interested. There may also be a subconscious intensification, or "hyperæsthesia," of other senses than that of sight. In all probability hyperæsthesia of the sense of hearing is sufficient to account for the dramatic central incident in the following story, told by a lady whose identity I am unable to reveal: "I was living one summer in a little mining camp in the Rocky Mountains. Our house, a frame building, was some little distance from any other, at the top of a steep hill; the only disadvantage of this being the additional difficulty of getting water, which was an expensive commodity in the camp, as the adjacent mines had drained most of the wells. "The house contained six rooms, all opening one out of another, my own room, with a dressing closet beyond, where my child slept, being at one end, and the front porch, which overlooked the valley, at the other. "One evening, after my little girl was asleep, I lit a tiny night lamp, always left burning on a bracket in her room; and, leaving all doors and windows open, on account of the intense heat, went to sit on the front porch. I may have sat there half an hour, when my attention was caught by a great blazing light in the direction of the farthest houses. It appeared evident that one at least had taken fire, and the difficulty of getting water, and the hope that no children were in danger, flashed through my mind.