English Harris Isbell Cited by user Rjwilmsi on 28 Mar 2015 Harris Isbell, M.D. (June 7, 1910 - December 23, 1994) was the director of research for the NIMH Addiction Research Center at the Public Health Service Hospital in…
English Psilocybin Cited by user Sasata on 11 Oct 2009 Imagery found on prehistoric murals and rock paintings of modern-day Spain and Algeria suggests that human usage of psilocybin mushrooms dates back thousands of years.