KENNELLY. — AN APPROXIMATE LAW OF FATIGUE. 



321 



Figure 15. Speed-distance and Time-distance Lines. 



Asceudiiig lines, time-distance ; descending lines, speed-distance. 

 Log. of distance (meters). 



S5— _Miot-Ci'-Mir5r-05«Heo 

 — oi e4 ci oi ci m n m m n -^ 'f 



Explanation.— At the riglit of the Figure the numerals 1.0 to 5.0 are loga- 

 rithms of time (seconds). 



VOL. XLII. — 21 



