EXAMPLES 111 



Therefore the person is 2-01% too heavy. 



Vital capacity from weight = 3010 c.c. (Class A) = (vital 

 capacity calculated from weight). 



Subtracting calculated from observed vital capacity 

 2880 - 3010 = - 130 c.c. 

 -130 X 100 4- 3010 = -4-32%. 



Therefore the person has 4-32% too little vital capacity for 

 Class A by weight. 



Vital capacity from length of trunk = 2969 c.c. (Class A). 



Vital capacity from circumference of chest = 2962 c.c. 



(Class A). 



Averaging 2969 + 2962 -f- 2 = 2966 c.c. (Class A) = (vital 

 capacity calculated from length of trunk and circumference of 

 chest). 



Subtracting calculated from observed vital capacity, 

 2880 - 2966 = -86 c.c. 

 -86 X 100 -4- 2966 = -2-9%. 



Therefore the person has 2-9% too little vital capacity for 

 Class A by length of trunk and circumference of chest. 



Example 3 



FEMALE, AGE 20 YEARS 



Weight of body = 52-5 kilograms 



Length of trunk = 83-8 centimetres 



Observations -.. f , , _ _ 



Circumference of chest = 72-5 centimetres 



Vital capacity = 3100 cubic centimetres 



CALCULATION 



Weight from length of trunk = 53-77 kilos. 

 Weight from circumference of chest = 52-51 kilos. 

 Averaging 53-77 + 52-51 == 106-28. 



106-28 * 2 = 53-1 kilos = weight calculated. 



Subtracting calculated from observed weight, 

 52-5 - 53-1 = -0-6 kilos. 

 -0-6 X 100 -^ 53-1 = -1-13% 



