in the Clerk’s Office of the District Court of the United States, for the Eastern
District of Pennsylvania.
PLATE I.
Engraving and description of the apparatus, which, being contrived for the purpose of determining whether the manifestations attributed to spirits could be made without mortal aid, by deciding the question affirmatively, led to the author’s conversion.
(a) PLATE I. Fig. 1, is an engraving from a photograph of the apparatus above alluded to. The disk A is represented as supported upon a rod of iron forming the axis on which it turns. To the outer end of this rod, the index B is affixed, so as to be stationary in a vertical position; the upper termination situated just in front of the letters. These are placed around the margin of the disk. The cord C encircles the pulley situated about the centre of the disk, like a hub to a carriage wheel. The ends of the cord are severally tied to weights, which, when the table is tilted, react against each other through the pulley; one being so large as to be immovable, the other so small as to be lifted. Of course a hook in the floor may be substituted for the larger weight.
PEASE’S APPARATUS.
(b) The relative position of the medium, and that of the screen intercepting her view of the disk, are too conspicuous to require particularization.