Spiritualism and allied causes and conditions of nervous derangement (1876)
Hammond, William Alexander, 1828-1900 · New York : G.P. Putnam's Sons · leaf 119
igation of a New Force. Quarterly Journal ofScience, J uly, 18 71. I 02 SPIRITUALISM. constructed an apparatus consisting of a mahogany board 36inches long by 9^ inches wide and 1 inch thick. At one enda strip of mahogany was screwed on, forming a foot, the lengthof which equalled the width of the… … Fig. 1. It will be perceived that any pressure exerted on the boardbetween the foot and the end attached to the spring balance,would cause the balance to indicate an increased weight, whilea force acting on the board over the foot would not apparentlyaffect the balance, and one exerted on the board…
Spiritualism · Nervous System · Neurotic Disorders
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