Record of tJi e Tracks on the Ground 65 



them ; for, repetitions of any such marks on ground indicate in part the 

 faults and peculiarities of gait. Every observation adds its mite to the 

 sum total and completes the final verdict. 



For the proper understanding of this table a trotter with a 

 straighter direction of feet would have been better here, but the reader 



FIG. 47- 



DISTANCES FROM MEDIAN LINE (TO MIDDLE OF FROG) AND ANGLES 

 WITH SAME + AND 



will no doubt follow the explanations readily. It is necessary to resort 

 to a little algebra regarding the plus and minus signs and the finding of 

 averages, but I trust that this will not deter anyone from studying 

 this table* The meaning of the -}- and signs has already been ex- 

 plained and in popular language it might be said that whenever the 

 foot goes in an unnatural direction, that is, when it crosses over the 



