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R.I.G.M.
Astroliths
Monoliths
Stonehedge
Megalithic tombs (as sound-theaters)
Judgement-stones
cracks in stones as passages for shamans in Siberia and African Han peoples.
evidence for transe-like states in 'solarheaded' petroglyphs at Tamgaly.
archaeology of shamanism, Neil S. Price
Archaeology of Shamanism, Neil S. Price
Wooden and Ivory statues
Objects Reluctant Witnesses to the Past, Chris Caple
Ceramic statues
Prehistoric Figurines Corporeality and Representation in the Neolithic, Douglass Bailey
Dying for the Gods: Human Sacrifice in Iron Age & Roman Europe, Miranda J. Aldhouse-Green
Animal tissues
Volcanic gasses
Plants
hemlock, belladonna, wolfsbane, and henbane, in medieval witches
flying ointment
Automata
Philosopher's stone
Tesla's Ether Physics