New York: Bantam Books, 1992.
First edition. Inscribed by Terence McKenna at a Berkeley bookstore event to former owner on verso of dedication page "Gary - See you in hyperspace! [signed] Terence McKenna." Ticket to event laid in. xxi, 311,  pp. Original half cloth lettered in copper. Fine in Fine dust jacket. A signed copy of one of the late radical ethnobotanist's best-known works, in which he argues that psychedelics have accelerated human evolution and social development. Item #140938417