CONTENTS. IX 



PAGE 



reference to art Experiments on the trot Tracings of the 

 pressures of the feet and of the re-actions Notation of the trot 

 Piste of the trot Representation of the trotting horse Ex- 

 periments on the walking pace Notation of this kind of motion ; 

 its varieties Piste of the walking pace Representation of a 

 pacing horse 151 



CHAPTER VI. 



EXPERIMENTS ON THE PACES OF THE HORSE. 



(Continued.) 



Experiments on the gallop Notation of the gallop Re-actions 

 Bases of support Piste of the gallop Representation of a 

 galloping horse in the various times of this pace Transition, or 

 passage, from one step to the other Analysis of the paces by 

 means of the notation rule Synthetic reproduction of the 

 different paces of the horse Modes of walking of various 

 quadrupeds 164 



BOOK THE THIRD. 



AERIAL LOCOMOTION. 



CHAPTER I. 



OF THE FLIGHT OF INSECTS. 



Frequency of the strokes of the wing of insects during flight ; acoustic 

 determination ; graphic determination Influences which modify 

 the frequency of the movements of the wing Synchronism of 

 the action of the two wings Optical determination of the move- 

 ments of the wing ; its trajectory ; changes in the plane of 

 the wing ; direction of the movement of the wing . . . 180 



CHAPTER II. 



MECHANISM OF THE FLIGHT OF INSECTS. 



Causes of the movements of the wings of insects The muscles only 

 give a motion to and fro, the resistance of the air modifies the 

 course of the wing Artificial representation of the movements 

 of the insect's wing 1 Of the propulsive effect of the wings of 



