The genus Psilocybe: a systematic revision of the known species including the history, distribution, and chemistry of the hallucinogenic species By: Gaston Guzman | Ebooks - Math/Science/Tech | PDF | 87.40 MiB
Psychedelics: The Uses and Implications of Hallucinogenic Drugs By: Humphry Osmond, Bernard Aaronson | Ebooks - General Non-Fiction | PDF | 6.22 MiB
1970 | ISBN: 0385087748 | 520 pages
Plants of the Gods: Their Sacred, Healing, and Hallucinogenic Powers By: Christian R*tsch, Albert Hofmann, Richard Evans Schultes | Ebooks - General Non-Fiction | PDF | 25.73 MiB