Note: The French word was used by the magician Paul Phylidor (†1829, of uncertain nationality), apparently first in an announcement of a performance in the Parisian journal Affiches, annonces et avis divers for December 16, 1792. The performance is discussed slightly earlier under the heading "Phantasmogorie" in a letter by one "A.L.M.", in an issue of the Magasin encyclopédique for December 3, 1792 (pp. 17-19). The final element -agorie has been variously explained; perhaps the most plausible suggestion is that it was split off from allégorie allegory. In a handbill for a performance in Vienna in March, 1790, Phylidor uses the presumably plural form phantasmorasi: "… wird der Physikus Phylidor seine Darstellungen der sogenannten Phantasmorasi, oder natürlicher Geister Erscheinungen … einem hohen und unschätzbaren Publikum die Ehre haben zu zeigen" ("… the physician Phylidor will have the honor to exhibit his representations of the so-called Phantasmorasi, or natural spirit phenomena, to a high and inestimable public"). The relation of this earlier word to phantasmogorie is unclear. (The handbill is preserved in the Vienna City Library.)