A biological mesmerist assures us that he finds no difficulty in raising beds, chairs, and tables; and in the case of Mr. Kellogg it is shown that such things are easily done without any aid from _spirits_. In the case of Dr. Taylor, the writing medium, it is shown, by the testimony of the spirits themselves, if their word is to be relied on, that the phenomena in his case were not done by spirits, but were the results of vital electricity. Such things are getting to be so common that we may expect soon to see the time when little ragged boys even (like those in Egypt, who went through the streets offering to show the spirit of any deceased friend for a penny or a piece of cake) will offer to lift tables, or imitate handwritings, at a penny a sight. We know of several "mediums," now engaged in these things, who confess they do not understand by what power it is they raise tables, or write sentences, &c., yet they do not believe it to be done by the agency of disembodied spirits. In many schools, the children have been forbidden by their teachers to indulge in these foolish practices. This power may be electricity, in some of its forms, or some other agent that has some relation or affinity to it, as in the cases related by Mr. Rogers. A DANCING LIGHT. A few years since the inhabitants of Southboro', Massachusetts, were excited and alarmed at the appearance of a _light_, about the size of a star, which for several successive nights was seen moving over a spot of land in the westerly part of the town. Upon examining the premises by daylight, it was found that a quantity of bones that had been buried in the earth had been thrown upon the surface by the roots of a tree, the trunk of which had recently been prostrated by a gale of wind. By many, these bones were supposed to belong to some human being, who, it was conjectured, had been murdered, and buried beneath the spot. And the light seen hovering near was considered indicative of such an event. But if the reader will turn to the second chapter of this work, he will learn that these _dancing lights_, so called, arise from an inflammable gas, evolved from decayed animal and vegetable substances, which take fire on coming in contact with atmospheric air. This _ignis fatuus_, _Jack-with-a-lantern_, or _Will-with-a-wisp_ appearance is generally seen in dark nights, over boggy and marshy ground, and generally in motion, at the height of five or six feet, skipping from place to place, and frequently changing in magnitude and form. On some occasions, it is observed to be suddenly extinguished, and then to reappear at a distance from its former position. Those persons who have endeavored to examine it closely have found that it moves away from them with a velocity proportioned to that of their advance--a circumstance which has had no small influence on the fears of the ignorant and superstitious. Dr. Denham once saw an _ignis fatuus_ in a