Tracks and Motion of the Feet 



between the wheels of the vehicle drawn (see Fig. i). We shall see 

 later on that the distances on either side of line M N are not always 

 alike and that, moreover, the four feet describe four lines instead of 

 only two. Fig. i represents an illustration of the ideal line trot. 



FlCr. 2 . 



B N D 



v ' 



ft b ' Lines of feet- 

 on nearside 



C D * Lints of Feet 

 on oFF side 



fl fi * median line 



\ 



n 



o 



O 



/v 



fore foot 

 C\ = hind foot ^ ' 

 M /v-- median lint 



Furthermore, the actions of the legs, or rather their extension, 

 must be like that of a pendulum swinging backward and forward to 

 the same extent. This equal extension from an imaginary plumb line 

 through the middle of leg insures the requisite regularity of gait, 



