iKENNELLY. — AX APPROXIMATE LAW OF FATIGUE. 



299 



Figure 9. Mean Running Speeds over Short Courses. 

 Mean speed over course (meters per second). 



10 



20 



30 



40 



50 



60 



70 



80 



; 90 



100 



■ 110 



120 



130 



140 



150 



160 



170 



180 



190 



200 



-Mean speed over course (miles per hour).- 



NoTE. — Figure 8, on the opposite page, expresses the relation between time 

 and distance to logarithmic co-ordinates. The scale of abscissas at the top of the 

 figure gives the logarithm of distance in meters for the upper line ; that at the 

 bottom, for the lower line. 



