Dr. Atomic's Marijuana Multiplier
Adam Gottlieb - Paperback
£9.99
John Mann, who published under the pseudonym, Adam Gottlieb and H. Grubber, is one of the earliest and most prolific of the psychedelic authors, releasing The 20th Century Alchemist series and other ground breaking works on marijuana horticulture and preparation and its culture. He broke into the mainstream with Secrets of Life Extension, one of the earliest books in the field.