INDUSTRIAL LABOUR 461 



gives a speed of 11 km. per hour. In a walking race held in May, 

 1912, the course being 765 kilometres, with periodical rests of 

 24 hours, Orphe walked at a mean rate of 10 km. per hour and 

 covered nearly 85 km. per diem. 



The speed of the athlete is sometimes very regular. Thus 

 Jean Bouin (age 24, weight 69kg) covered 9-72 km. in 30 minutes, 

 and the speed 19-44 km. per hour was found by careful measure- 

 ments at frequent intervals to be practically uniform. 



In various athletic exercises the power developed for very short 

 periods is remarkably high. No attention need be paid to feats 

 of strength, real or apparent, as so much depends on skill and 

 experience in the adoption of proper bodily attitudes. 



We may conclude this department of the subject by repeating 

 that in prolonged work, a man can at the very most exert ^ H.P., 

 and we may repeat that the power of the human body is greatly 

 conditioned by the. proper proportioning of the working periods 

 to the periods of rest. 



