126 EXAMPLES 



The vital capacity calculated from the weight will obviously 

 be too large on account of the person being above weight. 

 Vital capacity from length of trunk = 4061 c.c. (Class A). 

 Vital capacity from circumference of chest = 4118 c.c. 

 (Class A). 



Averaging 4061 + 4118 -5- 2 = 4090 c.c. (Class A) = (vital 

 capacity calculated from length of trunk and circumference 

 of chest). 



Subtracting calculated from observed vital capacity, 

 4200 - 4090 = +110 c.c. 

 + 110 X 100 4- 4090 = +2-69%. 



Therefore the person has 2-69% too great vital capacity for 

 Class A by length of trunk and circumference of chest. 



Example 20 



FEMALE, AGE 20 YEARS 



( Weight of body =114 Ib. 



Observations \ Length of trunk = 34^ inches 



( Circumference of chest = 26% inches. 



CALCULATION 



Weight from length of trunk = 133-60 Ib. 

 Weight from circumference of chest = 92-10 Ib. 



Averaging 133'60 + 92-10 + 2 = 112 85 Ib. = weight cal- 

 culated. 

 Subtracting calculated from observed weight, 



114-00 - 112-85 = +1-15 Ib. 



+ 1-15 X 100 -T- 112-85 = +1-02%. 



Therefore the person weighs about 1 % more than she should 

 according to the Tables. 



