GENERALITIES OF THE GAITS. 



489 



different attitude and in another place of the space ; this second image, compared to the first, would 

 ndicate exactly all the displacements which were effected at this second instant. Bv increasing 

 thus the images at very short intervals of time, we would obtain, with perfect accuracy the sue 

 cession of the phases of locomotion. Now, in order to preserve in the photographic glass plate the 



.a .< 





± 



ZL 



± 



Fig. 181.— Chrono-photograph of the walk of a man. (M. Marey.) 

 Zfbe lUnlnfTT V^'^fl '""^ successive impressions, the space in front of the apparatus 



Fig. 182.-Chrono-photograph of the leap of a man. (M. Marey.) 



lieht of thP Z ,h "'"'f ■ ?r ''""' "' ''^^"^- ^ "^'^^ ^""'•^'y «»«thed in white, with the 



8-1 whi e rh^ TT^ t'^*'"" "P°" ^'"^' P"^^"^' "^''^'"^- ^"""'"^ fJ^^ig- 181]- ^^ leaping [Fig. 



aid V takes hi? °^'^. '''''""''"'• P'^^'*'"*' ^'* "" °^^' ^'"-^^^ ™^«ng moVe or lei 

 rapidly, takes his image at more or le.ss 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 of 

 their attitudes." 



This process has been recently attempted upon the horse by Messrs. Marey 

 and Pages.' 



ComlfeTZSZTvt"T'"-Z' "" '^''^'''' P'^^'^" ^^^^ ''^*^^'"^- ^'^'^Pl^^^t et le cheval, in 

 ^..ompces-Kendus de 1 Academic des sciences, 18 Juillet, 1887. 



