| Unidentified photographer/creator Magnetizing in Lateral Curvatures of the Spine. Drawn and Engraved from a Daguerreotype. 1845, July Magazine page Google Books LL/35179 The Dissector (New York), Volume II, No.III, July, 1845, p.148.
The same illustration is published in.
Henry Hall Sherwood The Motive Power of the Human System with the Duodynamic Symptoms of Chronic Diseases, Sixteenth edition (New York, 1850), p.126.
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