164 METABOLISM AND GROWTH FROM BIRTH TO PUBERTY. 



TOTAL CALORIES PER 24 HOURS REFERRED TO ACTUALLY MEASURED BODY-SURFACE AREA 



(GIRLS) . 



The extended series of Du Bois measurements were likewise made 

 for most of the girls in this study, thus again permitting the comparison 

 of the metabolism with actually measured surfaces. These data are 

 brought together in figure 39, upon which we have laid a curve showing 

 the general trend. There is clear evidence of a general increase in 



Cals. 



TOTAL CALORIES REFERRED TO SURFACE. GIRLS. 



FIG. 39. Basal heat production of girls per 24 hours referred to body-surface. 



Points inclosed in squares signify puberty established. For No. 239 compare point inclosed in 

 diamond (prepubescence) with point inclosed in square at 1.272 sq. m. (puberty). 



metabolism with increasing body-surface, and the curve is not unlike 

 that found for boys in figure 38. It also bears a striking resemblance 

 to that found when the heat production was referred to body-weight 

 with both boys and girls (figs. 26 and 27). The variation of the 

 points above or below the central line is apparently not unlike that 

 with the corresponding curve for body-weight (see fig. 27), and they 

 scatter with reasonable regularity about a fairly straight line. Espe- 

 cially divergent results are found at 0.52 square meter, and the two 

 points showing a surface area above 1.2 square meters seemingly lie 

 rather high. Evidently further observations are necessary with the 



