Experiments in psychical science, levitation, contact, and the direct voice (1919)
Crawford, William Jackson, 1880-1920 · New York, E.P. Dutton · leaf 183
Fig. 27 … ■■ H Fig. 28 CONTACT PHENOMENA 163 The weight of the table with apparatus wasISYz lb., as indicated by the spring balance. The electrical apparatus was so adjusted thatit was impossible for any one of the 4 hingedwooden leaves to be pressed downwards with agreater pressure than y2 lb. without…
Spiritualism and psychical research
Internet Archive · University of Toronto, Robarts Library · Public Domain Mark 1.0. Free to use for anything.
