A scientific and cultural exploration of the pursuit of altered states of consciousness in both humans and animals - Contains myriad studies and examples from the author's 20 years of research - By... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.