EXAMPLES 117 



Subtracting calculated from observed weight, 

 69-0 - 62 = +7 kilos. 

 +7 X 100 -s- 62 = +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 capcity from length of trunk = 4073 c.c. (Class A). 

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

 (Class A). 



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

 capacity calculated from length of trunk and circumference of 

 chest). 



Subtracting calculated from observed vital capacity, 

 4200 - 4091 = +109 c.c. 

 + 109 X 100 -^ 4091 = +2-66%. 



Therefore the person has 2 - 66% too great vital capacity for 

 Class A by length of trunk and circumference of chest. 



Example 10 



FEMALE, AGE 20 YEARS 



[ Weight of body = 51 '7 kilograms 



Observations < Length of trunk = 86'9 centimetres 



I Circumference of chest = 68'0 centimetres 



CALCULATION 



Weight from length of trunk = 60 4 kilos. 

 Weight from circumference of chest = 41 '9 kilos. 

 Averaging 60'4 + 41*9 -f- 2 = 51 '2 kilos = weight calcu- 

 lated. 



Subtracting calculated from observed weight, 

 51 7 - 51-2 = +0-5 kilos. 

 +0-5 X 100 -^ 51-2 = +0-98%. 



Therefore the person weighs about 1% more than she should 

 according to the Tables. 



