METABOLISM AS AFFECTED BY GROWTH. 



171 



formula and the Du Bois surface formula is not a purely accidental 

 one, but represents in all probability a reasonably close physiological 

 relationship. Accordingly, while we must recognize that the Du Bois 

 linear formula may not, according to its authors, be used at present 

 for children under 2 years of age, we have frankly disregarded this and 

 have employed it for these younger children in computing the body- 

 surfaces from the actual measurements. Until it has been disproved 

 that the linear formula does not apply for children so young as this, 

 we believe it is justifiable to use it in this way. If body-surface still 

 continues to attract the attention of physiologists as much as it has 

 in the past decades, a complete verification of the linear formula for 

 children under 2 years of age may naturally be expected inside of a 

 few years. 



2 kgs. 4 



8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 



FIG. 44. Basal heat production of boys per square meter of body-surface per 24 hours 



referred to body-weight (earlier investigators). 



In the comparison of our metabolism data with earlier studies, in 

 which special attention is called to the total calories per square meter 

 per 24 hours referred to body-weight, it is necessary to bear strictly 

 in mind that the surface-areas of the children studied by the earlier 

 investigators were all computed, except those for the Du Bois boy 

 scouts. We have charted the values for boys on the usual scale in 

 figure 44. The sketched curve, which shows the general tendency 



