The Witchery of the Hand
In order to ascertain the existence of animal magnetism the following apparatus, very simple, and not at all difficult to construct, answers perfectly.
Stick a pin in a cork, point upwards. On that pivot place horizontally a sheet of paper so that it remains in perfect equilibrium.
If you now put your hand over the sheet of paper, a rotary movement will manifest itself, the sheet swerving from right to left. This movement is caused by the influence of the hand’s magnetism.