The Magnetic Ring.Take a gold ring,—the more massive the better. Attach the ring to a silk thread about twelve inches long; fasten the other end of the thread around the nail-joint of your right forefinger, and let the ring hang about half an inch above the surface of the table, on which you rest your elbow to steady your hand. Hold your finger horizontally, with the thumb thrown back as far as possible from the rest of the hand.
If there be nothing on the table, the ring will soon become stationary. Then place some silver (say three half-dollars) immediately below it, when the ring will begin to oscillate backwards and forwards, to you and from you. Now bring your thumb in contact with your forefinger (or else suspend the ring from your thumb), and the oscillations will become transverse to their former swing. Or this may be effected by making a lady take hold of your disengaged hand. When the transverse motion is fairly established, let a gentleman take hold of the lady’s disengaged hand, and the ring will change back to its former course. These effects are produced by the aid of animal magnetic currents given forth by the hands of the experimenters.
To Tell the Hour of the Day or Night by a Suspended Quarter.Sling a quarter or a dime at the end of a piece of thread by means of a loop; then, resting your elbow upon a table, hold the other end of the thread between your forefinger and thumb, and thus suspend the coin in an empty goblet. Observe, your hand must be perfectly steady; and if you find it difficult to keep it in an immovable posture, it is usel