EXAMPLES 125 



Averaging 143-11 + 142 27 -^ 2 = 142-69 Ib. = weight cal- 

 culated. 



Subtracting calculated from observed weight, 

 131-81 - 14227 = -10881b. 

 -10-88 X 100 -H 142 69 = -7-62%. 

 Therefore the person is 7-62% too light. 



The vital capacity calculated from weight will obviously be 

 too small on account of the person being under weight. 



Vital capacity from length of trunk = 4227 c.c. (Class A). 

 Vital capacity from circumference of chest = 4209 c.c. 



(Class A). 



Averaging 4227 + 4209 ^ 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 = +11 43%. 



Therefore the person has 11-43% too great vital capacity for 

 Class A by length of trunk and circumference of chest. 



Example 19 



MALE, AGE 25 YEARS 



Weight of body = 152 Ib. 2 oz. 



Length of trunk = 34% inches 



Observations ~. f , , 001/ . , 



Circumference of chest = 33>i inches 



Vital capacity = 4200 c.c. 



CALCULATION 



Weight from length of trunk = 135 35 Ib. 

 Weight from circumference of chest = 137 99 Ib. 

 Averaging 135 35 + 137-99 H- 2 = 136 67 Ib. = weight cal- 

 culated. 



Subtracting calculated from observed weight, 

 152-13 - 136-67 = +1546 Ib. 

 + 1546 X 100 * 136-67 = +11 31%. 

 Therefore the person is 11 31% too heavy. 



