Daniel Williams interviews clandestine chemist Nick Sand on The Opium Den Talk Show.
http://www.theopiumden.net/
Nick Sand (May 10, 1941 – April 24, 2017)
https://erowid.org/culture/characters/sand_nick/sand_nick_biography1.shtml
Nick Sand obituary by Casey William Hardison
https://www.psymposia.com/magazine/nick-sand-orange-sunshine-lsd-chemist-dies-75/
Articles by Nick Sand:
Moving Into the Sacred World of DMT
http://www.serendipity.li/dmt/sacred.pdf
Just a Wee Bit More About DMT
http://www.serendipity.li/dmt/weebit2.pdf
Journey Into the Realm of Ibogaine
http://www.serendipity.li/dmt/ibogaine.pdf
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