114 EXAMPLES 



Vital capacity from length of trunk = 4230 c.c. (Class A). 

 Vital capacity from circumference of chest = 4205 c.c. 



(Class A). 



Averaging 4230 + 4205 -*- 2 = 4218 c.c. (Class A) = (vital 

 capacity calculated from length of trunk and circumference of 

 chest). 



Subtracting calculated from observed vital capacity, 

 4700 -4218 == +482 c.c. ' 

 +482 x 100 -H 4218 . +10-26%. 



Therefore the person has 10' 26% too great vital capacity for 

 Class A by length of trunk and circumference of chest. 



Example 9 



MALE, AGE 25 YEARS 



Weight of body = 69-0 kilograms 



. . Length of trunk =88-7 centimetres 



? 1 Circumference of chest = 85-0 centimetres 



Vital capacity = 4200 cubic centimetres 



CALCULATION 



Weight from length of trunk = 61-65 kilos. 

 Weight from circumference of chest = 62-42 kilos. 

 Averaging 61-65 + 62-42-^2 =62-0 kilos = weight cal- 

 culated. 



Subtracting calculated from observed weight, 

 69-0 - 62-0 - +7 kilos. 

 +7 x 100 H- 62-0 =- +11-29%. 

 Therefore the person is 11-29% too heavy. 



The vital capacity calculated from weight will obviously be 

 too large on account of the person being above weight. 



Vital capacity from length of trunk = 4073 c.c. (Class A). 

 Vital capacity from circumference of chest = 4109 c.c. 



(Class A). 



Averaging 4073 + 4109 -H 2 = 4091 c.c. (Class A) = (vital 

 capacity calculated from length of trunk and circumference of 

 chest). 



