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
"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.