William Eglinton

[7] However, in 1876, Eglinton was exposed as a fraud when the psychical researcher Thomas Colley seized the "spirit" materialization known as "Abdullah" and cut off a portion of its cloak.

[10] Eglinton performed slate writing mediumship and his leading critics were the psychical researchers Eleanor Sidgwick and Richard Hodgson.

[11] In 1886 and 1887 a series of publications by S. J. Davey, Hodgson and Sidgwick in the Journal for the Society for Psychical Research exposed the slate writing tricks of Eglinton.

[17] Massimo Polidoro has written that Kellar did not "impose any form of control" and "couldn't see anything" in the dark séance room but still convinced himself Eglinton levitated.

[3] According to the magician Harry Houdini although Kellar was originally baffled by Eglinton's levitation when he gave the subject fuller consideration he was able to reproduce the same phenomena by trickery.