Jakob Ottonowitsch von Narkiewitsch-Jodko, Fluidic photograph, Discharge of a Positive Current, 1883. Collection of Tony Oursler. Courtesy Tony Oursler.
As cited in pictures from the Walker Art Center essay series on paranormal photography:
https://walkerart.org/magazine/what-is-a-photographer-if-not-a-paranormal-investigator-in-conversation-with-patricia-voulgaris
https://walkerart.org/magazine/i-dont-pretend-to-have-the-answers-rik-garrett-and-kirlian-photography/https://walkerart.org/magazine/every-picture-is-a-ghost-photography-and-the-invisible/

















