68 METABOLISM AND GROWTH FROM BIRTH TO PUBERTY. 



is in large part due, we believe, to the fact that children of different 

 ages may have markedly different weights, while children of the same 

 weight will have essentially the same surface area, and children of 

 the same height nearly the same surface area. At no point in figures 

 12, 13, or 14 is there any noticeable deviation in the line that would 

 indicate a profound disturbance in the relationship of body-surface 

 to either height, weight, or age. 



Yr . 1 2 3 4 5 6 7 9 



FIG. 14. Relationship between body-surface and age with girls. 



Although a further detailed analysis is out of place here, it is im- 

 portant that these surface areas, as actually measured, should be 

 permanently recorded. From these charts the reader may readily 

 pick out the individuals deviating farthest from the general line show- 

 ing the relationships between body-surface and age, weight, or height, 

 and compare them with our list of subjects in tables 12, 13, 27, and 28, 

 where all the anthropometric data are given. It was impossible to 

 indicate the subjects' numbers on these charts without making the 

 charts altogether too confusing. 



Owing to the earlier concept of an intimate causal relationship 

 between body-surface and metabolism, it is important to use these 

 carefully measured surface areas not only in reference to body-weight, 

 height, and age, but likewise for comparison with the measured meta- 

 bolism. This latter comparison is accorded treatment in the subse- 

 quent chapters of this report. 



