. Animal locomotion : the Muybridge work at the University of Pennsylvania : the method and the result. Muybridge, Eadweard, 1830-1904; Horses; Animal locomotion; Photography, Instantaneous. NORMAL AXD ABNORMAL MOVEMENTS. 133 Fig. 26. seated upon a chair and told to rise at a given signal. His right hand was resting on the chair just where the arched -piece of the back is joined to the seat. When everything was in readiness he was told to rise. The tremor which had been marked while the hand was resting on the chair gradually be- came less and less evident, and finally ceased when the erect po
. Animal locomotion : the Muybridge work at the University of Pennsylvania : the method and the result. Muybridge, Eadweard, 1830-1904; Horses; Animal locomotion; Photography, Instantaneous. NORMAL AXD ABNORMAL MOVEMENTS. 133 Fig. 26. seated upon a chair and told to rise at a given signal. His right hand was resting on the chair just where the arched -piece of the back is joined to the seat. When everything was in readiness he was told to rise. The tremor which had been marked while the hand was resting on the chair gradually be- came less and less evident, and finally ceased when the erect position was reached. In Fig. 26 the lower row of dots is seen to be double at the beginning of the act, thus showing the presence of tremor. As the man approaches the erect position the dots are gradually less widely separated and finally coalesce. In the case of the elbow, and also of the shoulder, a single continuous row of dots alone is seen. From the above figures it is very evident that a properly con- structed " Marey wheel" offers a valuable and accurate method of studying not only tremors but probably also other forms of abnor- mal The man is in tlie act of rising and walking forward. A bright button is fixed upon the hand. The double row of dots indicate the tremor of the hand. ADDENDUM. In Mr. Muybridge's catalogue a number of the clinical plates are incor- rectly designated. Plate 549 should be " Locomotor ; Plate 555 should be " Muscular Atrophy of Left ; Plate 558 should be " Stuporous ; Plate 559 should be " Partial ;. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original University of Pennsylvania. Philadelphia : J. B. Lippincott Co.
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisher, booksubjecthorses
