(_k_) The other figure in the same plate represents Pease’s disk apparatus, so arranged, as to be affixed to any table of moderate dimensions. The fulcrum on which the lever vibrates is so made as to be affixed to one of the table’s edges by clamps, while the disk, situated in a vertical plane, is supported by a bar which has a clamp to secure it to the table, while to the disk it is fastened by being introduced into square staples, made to receive it securely, in a mode resembling that by which a square bolt is secured. Under the vibrating lever, a hollow wire is fastened by staples, so as to receive a solid wire, which can be made to slide farther in or out, and thus adjust itself to the distance.] [Illustration: PLATE II.] PLATE II. _Description of the instrument by which spirits were enabled to move a table under the influence of mediumship, yet in no wise under the control of the medium employed, even clairvoyance being nullified._ (_i_) The table is about six feet in length, and sixteen inches in width, so contrived as to separate into three parts for conveniency of carriage. (_j_) The pair of legs under the right side are upon castors. Those on the left side upon an axle, passing through perforations suitably made for its reception. The axle consists of a rod of about ½ of an inch in thickness. The axle serves for two wheels of about six inches diameter, of which one is grooved. A disk, already described as appertaining to apparatus in a preceding page, is secured upon a pivot affixed to a strip of wood, which is made to slide between two other strips attached to the frame of the table just under the top board. By these means, the band embraces both the hub of the disk and the wheel; when this turns in consequence of the shoving of the table horizontally along the floor, the disk turns with the wheel, and as much faster as the circumference of the groove in the hub, is less than that of the groove in the wheel. (_k_) The index is in this apparatus situated precisely as in that described in Plate I.; and any mortal having due hold of the table, may, by shoving it one way or the other, bring any letter under the index, so as to spell out any desired word. But no person, sitting as the medium is in the engraving represented to sit, with the plate on two balls, can actuate the disk so as to spell out words as above mentioned. Utterly incapacitated from moving the table, it were manifestly impossible to actuate the disk, or to interfere with the movements otherwise imparted.