The "spirit-rapping" humbug was started in Hydesville, New York, about seventeen years ago, by several daughters of a Mr. Fox, living in that place. These girls discovered that certain exercises of their anatomy would produce mysterious sounds--mysterious to those who heard them, simply because the means of their production were not apparent. Reports of this wonder soon went abroad, and the Fox family were daily visited by people from different sections of the country--all having a greed for the marvelous. Not long after the strange sounds were first heard, some one suggested that they were, perhaps, produced by spirits; and a request was made for a certain number of raps, if that suggestion was correct. The specified number were immediately heard. A plan was then proposed by means of which communications might be received from "the spirits." An investigator would repeat the alphabet, writing down whatever letters were designated by the "raps." Sentences were thus formed--the orthography, however, being decidedly bad. What purported to be the spirit of a murdered peddler, gave an account of his "taking off." He said that his body was buried beneath that very house, in a corner of the cellar; that he had been killed by a former occupant of the premises. A peddler really had disappeared, somewhat mysteriously, from that part of the country some time before; and ready credence was given the statements thus spelled out through the "raps." Digging to the depth of eight feet in the cellar did not disclose any "dead corpus," or even the remains of one. Soon after that, the missing peddler reappeared in Hydesville, still "clothed with mortality," and having a new assortment of wares to sell. That the "raps" were produced by disembodied spirits many firmly believed. False communications were attributed to evil spirits. The answers to questions were as often wrong as right; and only right when the answer could be easily guessed, or inferred from the nature of the question itself. The Fox family moved to Rochester, New York, soon after the rapping-humbug was started; and it was there that their first public effort was made. A committee was appointed to investigate the matter, most of whom reported adversely to the claims of the "mediums;" though all of them were puzzled to know how the thing was done. In Buffalo, where the Foxes subsequently let their spirits flow, a committee of doctors reported that these loosely-constructed girls produced the "raps" by snapping their toe and knee joints. That theory, though very much ridiculed by the spiritualists then and since, was correct, as further developments proved.