Record of the Tracks on the Ground 5 1 



For instance, we have as results of such division : 



Fore Hind 



near off near off 



+.69 . +.85 +.85 +.91 



79 90 -78 -76 



.10 .05 +.07 +.15 



and adding these averages by the simple rule of algebra as given on 

 p. 66 we get the results as shown, which mean, briefly mentioned, that 

 fore feet fall short of average a trifle and hind exceed it a little. And 

 this again proves that there was momentarily an increase of speed 

 during trial, as elsewhere noted, which is always caused by greater 

 hind extension first. 



And so even at this stage of the analysis of Lou Dillon's gait 

 we can say that her off fore leg is the more active or stronger leg, 

 and the near hind is the more regular or stronger leg than its opposite 

 mate. Allusion has been made to the interrelation of the four legs, 

 or the influence which one deficient leg may have on its opposite mate 

 or on its diagonal companion with which it moves at the same time. 

 The off fore in this case will pull along the near hind, or vice versa ; 

 and the lagging off hind may retard the extension of the near fore. 

 It is therefore impossible to establish the tendencies of extensions by 

 merely considering the stride and the variations. 



Let us, therefore, consider the extension of each leg with reference 

 to its opposite mate, as shown in table of Fig. 37. 



These extensions are likewise figured from original measurements 

 as given in Fig. 34, and they are found by deducting the figures of one 

 foot from the next one. In the '''fore" column we have, for instance, 

 19.30 9.70=9.60, this being the extension or distance of off fore to 

 near fore. Then again we have the next distance from last near fore 

 to off fore. Here the figures are 28.75 I 9-3=945 f r tne extension 

 or distance from near fore to off fore. On the table the letters "o 

 to n" and "n to o" indicate the distances from off to near and from 

 near to off. With a little practice it is not much of a trick to figure this 

 out rapidly. 



