>Small amounts of water extract made by boiling the leaves, blossoms or seed pods of datura stramonium might be mixed with the basic Ma joon, or even the White Cooky recipe. Then the effect would be to make the victim suggestible to what¬ ever is desired. The grated skin of a dried desert lizard can be used instead of canthar- ides beetles.

...interesting! I wonder what the trial and error process looked like.