382 THE HUMAN MOTOR 



the distance covered was 721 metres, and 22 trips were done per 

 diem, which was certainly the most that could be done. 



The distance covered under load was therefore : 



721 x 22 = 15,862 metres. 

 And the same distance unloaded. Hence we get : 



15862 (70 + 14-70) + 15862x70=- 2,453,851 metre kilogrammes, 

 which is very nearly the same as the result obtained by Taylor, 

 but here also the speed and load are insufficient and badly com- 

 bined. 



r Various other observations have given 2,430,000, 2,257,200, and 

 2,280,000 metre kilogrammes, with loads of 85, 50 and 44 kilo- 

 grammes. 



Fig. 271. Marking time (with the body motionless). 



