THE TABLES: EXPLANATORY 17 



hand, it is found that, although in a state of apparent 

 good health, he is either too light or too heavy in relation 

 to the length of his trunk and the circumference of his 

 chest, it is necessary, before classifying, to consult the 

 Tables dealing with trunk-length and chest-circumference 

 in relation to vital capacity. For it is obvious that if a 

 person is found to be considerably under weight, but 

 shows a vital capacity normal for the length of his trunk 

 and the circumference of his chest, he would appear to 

 possess a remarkably large vital capacity as judged by his 

 weight. On the other hand, if he were found considerably 

 too heavy (by trunk-length and chest-measurement), he 

 would appear to have a vital capacity considerably too 

 small, if judged by his weight, although he might in fact 

 be normal. To judge by such criteria alone would 

 obviously place the too heavy individuals in a class lower 

 than that to which they belong, and the poorly developed 

 individuals in a better class than their condition merits. 



TABLE OF CLASSES* 

 CLASS A 



Army and Navy personnel, and any person who has under- 

 gone prolonged training in either Service independent of 

 his ordinary vocation in life. 



Police force. 



Athletes and active sportsmen. 



University students (playing games). 



Boys in Public Schools (playing games). 



Fire brigade. 



Blacksmiths and boilermakers. 



* Though this Table may serve as a guide in classification, it 

 should be borne in mind that an active outdoor life, sports and games, 

 military training and boy scouting, may bring an individual into Class A 

 independently of his vocation. 



The same kind of grouping may apply to females, though a relatively 

 larger number of women will be found to belong to Glass C, 



