Food of the Gods : The Search for the Original Tree of Knowledge, Paperback by McKenna, Terence, ISBN 0712670386, ISBN-13 9780712670388, Like New Used, Free P&P in the UK

. . . . . . . a field watch on the eating habits of 'stoned' apes and chimpanzees - these adventures are all a part of ethnobotanist Terence McKenna's extraordinary quest to discover the fruit of the Tree of Knowledge. .