The pasilalinic-sympathetic compass, also referred to as the snail telegraph, was a contraption built to test the pseudo-scientific hypothesis that snails create a permanent telepathic link when they mate. The device was developed by French occultist Jacques-Toussaint Benoît (de l'Hérault), with the supposed assistance of an American colleague, Monsieur Biat-Chrétien[1][note 1] in the 1850s.
- ^ Dickens, Charles (1890). All the Year Round. pp. 179–180. Retrieved 9 August 2016.
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