LIST OF ILLUSTRATIONS. xm 



PAGE 



FIG. 16. Muscles of the thigh in man . . , . . . 76 



FIG. 17. Muscles of the thigh of the magot 77 



FIG. 18. Muscles of the thigh of the coaiita . , . . . 78 



DETERMINATIONS. 



FIG. 8. Two determinations of the speed of the muscular wave . 33 

 FIG. 10. Determination of the speed of the nervous agent in man . 43 

 FIG. 12. Measure of the time which elapses between the excitation 



of the electric nerve, and the discharge of the torpedo . 58 

 FIG. 82. Determination of the direction of the movements in an 



insect's wing 195 



FlG. 94. Experiment to determine by the electric and myographic 

 methods at the same time, the frequency of the move- 

 ments of the bird's wing, and the relative duration of 



its elevation and depression 230 



FlG. 26. Determination of the rapidity of walking at various 



instants, by means of a chronographic tuning fork . 122 



NOTATIONS. 



FIG. 34. Notation of a tracing of man's mode of walking . . 133 

 FIG. 35. Synoptical notation of the four kinds of progression used 



by man 134 



FIG. 36. Notations of the gallop (man) 134 



FIG. 37. (Upper line) notation of a series of jumps oil two feet. 



(Lower line) notation of hops on right foot . . . 135 



NOTATIONS OF THE PACES OF THE HORSE. 



FIG. 38. Notation of a horse's amble 142 



FIG. 39. Notation of the horse's walking pace . . . 143 



FIG. 51. Notation of the walking pace, with predominance of the 



lateral pressures . . . . .160 

 FIG. 45. Graphic curves and notation of the horse's trot . . . 153 



FIG. 40, Notation of a horse's trot 144 



FIG. 46. Notation of the irregular trot . . . 156 



FIG. 41. Synoptical notations of the paces of the horse, according 



'to various writers. 



No. 1. Amble, according to all writers. 

 .. f Broken amble, according to Merche. 



\ High steps, according to Bouley. 

 ( Ordinary step of a pacing horse, according to Magure. 

 No. 3. \ Broken amble, according to Bouley. 

 ( Traquenade, according to Lecoq. 



