Page:New hocus pocus.pdf/21

21, as if by sympathy, performs the same motions. In the room of the first head, which is shown round to the company, you take a second from the table, where the experiment is to be performed. This second head is attached to a silken thread which passes through the partition into the hands of the confederate; this thread, instead of leaning on the brim of the glass, where the cover would prevent it from sliding, passes through a small well-polished nick to give it easy play and prevent it from breaking.—N. B. The crown pieces, which you put in the bottom of the glass, under pretext of preventing any communication between the golden head, and the machinery, which may be suspected to be hid in the table, are not useless, for they serve as ballast, and prevent the glass from yielding to the motion occasioned by drawing the thread

Dissolve indigo in diluted sulphuric acid, and add to it an equal quantity of solution of carbonate of potass. If a piece of white cloth be dipped in this mixture it will be changed to blue; yellow cloth, in the same mixture, may be changed to green; red to purple; and blue litmus paper to be turned to red

For this trick, eastcast [sic] both the dice, and then mark how many points appear at the top; then