In some parts of the world mushrooms have had a central role in religious ritual ceremonies. Ethnomycological studies among the Indian tribes of Mexico - the Aztecs and the Chichimecas - revealed the mushrooms to be hallucinogenic.

This book covers the psychedelic ayahuasca tourism in Peru, with its facet-rich psychological, pharmacological, anthropological, and sociological aspects.

Numerous treatments have been proposed. But the treatment of itch remains difficult and it depends on its etiology. The understanding of the pathophysiogeny of itch is necessary.

Edited,by Dan Joy.,. Book I: The Story Continues This is the continuation of the love story from PIHKAL: A Chemical Love Story with a blend of travel, botanical facts, scientific speculation, psychological and political commentary.

"Offers comprehensive, definitive information on all of the essential mineral elements--focusing on biochemical and physiological processes.

In this frank fearless and often very funny book Mark Ecclestone explains how his life nearly ended when he was 16.