EFFECT: The magician removes a dark glass stone from a small drawstring bag. He then begins to rub it as if it were Alladin's Lamp. Magically, the stone becomes clear in appearance like ice. The stone changes color back and forth a few times and is then passed out for examination. Instructions include complete descriptions of:

The Cover Switch
The French Drop Switch
Reverse French Drop
Jimbo Switch
Kaps' Subtlety
and more!