50 



Ameyncan Statistical Association. 



training (93), and the 50 per cent value after the training 

 (120) is higher than the 80 ^qv cent value before the train- 

 ing (119.5). 



Strength of Back. The extreme values were, before the 

 training, 100 and 40 kilos., respectively; after the training, 

 124 and 48 kilos., respectively. Table VI shows the value of 

 the following percentile grades : — 



Increase has taken place in all the grades. The 10 per 

 cent value after the training (^Q^ is higher than the 50 per 

 cent value before the training (65.5), while the 50 per cent 

 value after the training (81.5) is higher than the 80 per cent 

 value before the training (80.5), and the 70 per cent value 

 after the training (91.5) is equal to the 95 per cent value 

 before the training. 



Strength of Chest. Tlie extreme values before the train- 

 ing were 37 and 15 kilos., respectively; after the training, 48 

 and 18 kilos., respectively. Table VII shows the value of the 

 following percentile grades : — 



Increase has taken place in all the grades. The 10 per 

 cent value after the training (26.8) is slightly below the 50 

 per cent value before the training (27), while the 50 per cent 



