"New Maps of Hyperspace". Terence McKenna's speech at the Berkeley Institute for the Study of Consciousness (1984) as quoted in "Magical Blend Magazine", Issue #22, April 1989.
Roderick Impey Murchison (1854). “Siluria the History of the Oldest Known Rocks Containing Organic Remains, with a Brief Sketch of the Distribution of Gold Over the Earth by Roderick Impey Murchison”, p.469