GENERALITIES OF THE GAITS. 



495 



the feet was increased. It would be sufficient to have a larger surface for 

 notation ; this is always indispensable when it concerns the representation of the 

 leaping or the elongated gaits, the obliquity and length of the notation augment- 

 ing with the amplitude of the steps and the projection of the feet. 



O fi 



o^ 



Such is the principle of the ingenious method of M. Lenoble du Teil. It 

 has the advantage of recording all the data relative to the duration and the space 

 passed over which the registering apparatus or chrono-photography can collect 

 from a given gait. When the diagram is once constructed, all desirable informa- 

 tion relative to a complete analysis of the phenomena can be obtained at a glance 

 in a concise form and compared the one with the other, which is not to be 

 overlooked. 



Unfortunately, the scheme which it fiirnishes has the disadvantage of 

 requiring a large area. Besides, the notations of the anterior members are 

 intermingled with those of the posterior in the same manner as the imprints 

 of the trail. The reading of it is also less clear than in the method of Marey, 

 and it is less easy to compare, as in Duges's method, the particular characters 



