60 METABOLISM AND GROWTH FROM BIRTH TO PUBERTY. 



TABLE 13. Body-girths of girls and comparison of body-surfaces, as measured by the Du Bois 

 linear formula and as computed from the formula K^Jw 2 Continued. 



1 For values of K see table 14. 



2 The data for this subject were used in plotting the charts shown in figures 5 to 14 (pp. 43 



to 68). 



the Du Bois and Lissauer formulas) and the factor of 10.3 proposed 

 by Lissauer rather strengthens us in our view that the Du Bois linear 

 formula may be properly applied to children weighing 6.27 kg. or under. 



Based upon our comparison of surface areas by the Lissauer and Du 

 Bois linear formulas, we propose a series of constants for use hi the 

 formula, the cube root of the square of the weight multiplied by a 

 constant factor K, which will give the most probable surface areas of 

 children. This constant, K, varies with children of different weights 

 and there is a slight difference between boys and girls, as shown in 

 table 14 herewith. 



In considering these constants, it will be noted that for both boys 

 and girls up to about 10 or 15 kg. an average factor of 10.3 would 

 not vary much more than 3 per cent from that found best fitted to the 

 situation. Consequently, we must emphasize strongly here the accu- 

 racy of the old Lissauer formula for computing the surface area of 

 young children. While our own measurements of the body-surface 



