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 THIED. 



AERIAL LOCOMOTION. 



CHAPTER 1. 



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 n. 



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 — Of the propulsive effect of the wings of 



