Peter Matthiessen, Snow Leopard . New York: Viking Press, 1978.

This is a beautifully written adventure book about the search for the rare snow leopard in the Himalayan Mountains of Tibet.

Written in journal format, the book also brings to life the author's experiences with hallucinogens, his introspective journey while describing the Tibetan culture, and the history of Buddhism.

Leonard Uhr and Elizabeth Uhr, Readings in Social Psychology Today .

Del Mar, CA: CRM Books, 1970. This is an anthology of many studies in social psychology, many of which apply to hallucinogen use and potential health problems.

R. G. Wasson, Soma: Divine Mushroom of Immortality . New York: Harcourt Brace Jovanovich, 1971. This work is considered a classic entheogen compendium covering all facets of the spiritual uses of hallucinogens, particularly mushrooms. It discusses the similarities and differences between mushrooms in many countries and includes maps and illustrations.

Tom Wolfe, The...