. Animal locomotion : the Muybridge work at the University of Pennsylvania : the method and the result. Muybridge, Eadweard, 1830-1904; Horses; Animal locomotion; Photography, Instantaneous. 14 THE MECHANISM OF The exposure-counting circuit possesses another device. On top of the first camera described, where a peep-sight carrying the diaphragm follows the movement, are two parallel strips of metal on wooden slides. They are so slid past one another that the length of metal opposite may equal the length of the photo- graphic plate used. The peep-sight bar carries a bridge clamped at pleasure,
. Animal locomotion : the Muybridge work at the University of Pennsylvania : the method and the result. Muybridge, Eadweard, 1830-1904; Horses; Animal locomotion; Photography, Instantaneous. 14 THE MECHANISM OF The exposure-counting circuit possesses another device. On top of the first camera described, where a peep-sight carrying the diaphragm follows the movement, are two parallel strips of metal on wooden slides. They are so slid past one another that the length of metal opposite may equal the length of the photo- graphic plate used. The peep-sight bar carries a bridge clamped at pleasure, springing its contact points from one to the other slide, so that the circuit passing this bridge may not count images that might occur where there is no plate to receive impressions. The battery used was composed of eight Le Clanche cells. Two, three, or four cells in series are thrown by a switch into the fork, or time-circuit. Two cells are used for the exposure-counting circuit, and one cell for each shutter-slide, eight in all, and a ninth cell is in re- serve to replace or reinforce any one that might accidentally give out. The lens used was a Ross carte-de-visite lens of six and three-quarter inches equivalent focus. It is to be regretted that Professor Eakins's admirable work is not yet sufficiently com- plete for publication as a whole. Fig. The reproduction of a boy jumping horizontally, shown above, which Professor Eakins has photographed on a single plate by. 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
