Cannabis Alchemy is a cult classic. This edition has been updated and revised.

Cannabis Alchemy reveals the world of marijuana and hashish. Gold accompanies the alchemist as he uncovers the secrets of enhancing potency.
 
 

"Cannabis lovers awake and sing! 
For this is surely no less than a masterwork, 
a lucid, extra-ordinarily practical labor 
of alchemical lover and lore."

"This modern classic adds a valid new twist 
to the ancient art of getting high."
-George Andrews
The Book of Grass