I will here introduce some interesting extracts from Robert Dale Owen, relating to some of his personal experiences with me, which will speak for themselves: I. MOVING A LEDGE OF ROCK ON THE SEA-SHORE. "On the twenty-fourth of August, 1861, I accepted an invitation, from Mr. Samuel B. Underhill, of New Rochelle, a sea-side village on the shore of Long Island Sound, to spend the next day with him, in company with Mr. and Mrs. Underhill (their near relatives). "On the afternoon of August 25, Mr. S. B. Underhill drove us out in his carriage, through the picturesque country adjoining the village; the party consisting of Mr. S. B. Underhill and his wife, Mr. and Mrs. D. Underhill, and myself.[14] [14] Mrs. S. B. Underhill was a sister of my husband, and a full believer in Spiritualism. There was no relationship between Mr. S. B. and Mr. D. Underhill. It had simply happened that his sister had married a gentleman of her own name with whom she had no tie of kin. "In the course of the drive, coming near the shore of the Sound, at a point where there were long ledges of rock slanting down into the water, it suddenly suggested itself to me that here was an excellent opportunity for a crucial test. I inquired of Mrs. Underhill if she had ever tried to obtain raps on the sea-shore. 'No,' she said; she never had. "'Do you think we can get them here?' I asked. 'I have never found any place where they could not be had,' she replied; 'so I dare say we can.' Thereupon there were three raps--the conventional sign of assent--from the bottom of the carriage. "So we drove down to the beach, and got out to test the matter. The portion of rock whither we repaired was not an isolated block, detached from the rest, but part of a large, flat mass of rock, covering at least half an acre, and running back into a bluff bank that rose beyond it; there were also several underlying ledges. We were about thirty feet from the sea and, as there was a moderate breeze, the surf broke on the rocks below us. "But yet, standing on the ledge beside Mrs. Underhill, and asking for the raps, I heard them quite distinctly above the noise produced by the surf. This was several times repeated, with the same result. "Then Mrs. Underhill and Mrs. S. B. Underhill sat down, and I, stepping on a lower ledge, laid my ear on the ledge on which the ladies were sitting and repeated my request. In a few seconds the raps were heard by me from within the substance of the rock and immediately beneath my ear. "I then sought to verify the matter by the sense of touch. Placing my hand on the same ledge, a few feet from Mrs. Underhill, and asking for the raps, when these came audibly, I felt, simultaneously with each rap, a slight but _unmistakably distinct vibration or concussion of the rock_. It was sufficiently marked to indicate to me a rap, once or twice, when a louder roll of the surf for a moment drowned the sound.