Trance #46 - Graph of Psychic Surges of Trance

Psychic Phenomena VI, #5 - Paraffin Glove

Psychic Phenomena IX, #4 - Spirit Photography

Thomas Glendenning Hamilton Lecture Series #9 - Supernormal Phenomena

Psychic Phenomena XII, #25 - Margery, Boston Experiments

Trance #48 - Graph of Periods of Automatisms with Intervening Upward Surges of Trance

Psychic Phenomena XII, #29 - Margery, Boston Experiments