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Do you think you might have HPPD?
Take this survey out of University of East London,
which attempts to understand the inner experiences of
people with lasting perceptual changes from use of
psychoactive drugs, (diagnosed or not). It investigates
factors that could create distress or effect quality of life.
Growing the Hallucinogens
How to Cultivate and Harvest Legal Psychoactive Plants

by Hudson Grubber
published by 20th century Alchemist

Ronin Pub informed us on Feb 24, 2012 that they were the sole copyright holder to this text and Erowid has removed it a their request.


Originally archived by the Sputnik Drug Information Zone.