PHYSICAL TRAINING 159 



work and a duration of life far greater than any 

 machine ; long before it has reached its maximum 

 of efficiency it can reproduce its kind. 



In conclusion it may be stated without any 

 doubt that the true method of physical training is 

 muscular exercise in the form of games, sport or 

 work in the open air, for this is the one based upon 

 biological principles. On these lines it is possible 

 to improve greatly the health of the nation. It is 

 cheaper in the long run to raise healthy than un- 

 healthy stock, but it is not safe to argue that the 

 latter should be " scrapped," for civilisation is so 

 complex in its demands that a man possessing a 

 very poor physique but a special type of mental 

 capacity may be more valuable to the State than 

 many healthy men. 



