The exterior of the horse . in Bulletin de la Société centrale de médecine vétérinaire, 14 Février,1889. - Marey, Comptes-Rendus de lAcadémie des sciences, 3 Juillet, 1882. Id., Développement dela méthode graphique par lemploi de la photographie, Paris, 1884. GENERALITIES OF THE GAITS. 489 different attitude and in another place of the space ; this second image, compared to the first, wouldindicate exactly all the displacements which were eifected at this second instant. By increasingthus the images at very short intervals of time, we would obtain, with perfect accuracy, the suc-cession of the
The exterior of the horse . in Bulletin de la Société centrale de médecine vétérinaire, 14 Février,1889. - Marey, Comptes-Rendus de lAcadémie des sciences, 3 Juillet, 1882. Id., Développement dela méthode graphique par lemploi de la photographie, Paris, 1884. GENERALITIES OF THE GAITS. 489 different attitude and in another place of the space ; this second image, compared to the first, wouldindicate exactly all the displacements which were eifected at this second instant. By increasingthus the images at very short intervals of time, we would obtain, with perfect accuracy, the suc-cession of the phases of locomotion. Now, in order to preserve in the photographic glass plate the .0- i J. e- W T ? > \ I . .. / ^ i 1 ? I 1^ ? 1^ 1^ Fig. 181.—Chrono-photograph of the walk of a man. (M. Marey.) sensibility necessary to receive the successive impressions, the space in front of the apparatusmust be absolutely dark and the man or the animal passing before it must stand oui in whileupon a black Fig. 182.—Chrono-photograph of the leap of a man Marey.) My screen is a cavity whose walls are black. A man entirely clothed in white, with thelight of the sun shining brightly upon him. passes, walking, running [Fig. 181], or leaping [, while the photographic apparatus, provided with an oval window rotating more or lessrapidly, takes his image at more or less close intervals. This method can be applied to the study of the different types of locomo-tion ; a white horse or a white bird will in the same manner give the series oftheir attitudes. This process has been recently attempted u})on the horse by Messrs. Mareyand Pagès.^ 1 Marey et Pages, Mouvement du membre pelvien chez lhomme, léléphant et le cheval, inComptes-Rendus de lAcadémie des sciences, 18 Juillet, 1887. 490 THE EXTERIOR OF THE HORSE. With the aid of distinguishing marks applied upon the body over the artic-ular centres, and united afterwards on the proof by straight lines, they havesuc
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecthorses, bookyear1892
