152 METABOLISM AND GROWTH FROM BIRTH TO PUBERTY. 



selected with this in mind. Similar results are shown in figure 34 

 for girls. 



10 11 12 13 14 15 16 17 18 19 20 .21 22 23 



FIG. 33. Basal heat production of boys per kilogram of body-weight per 24 hours referred 



to age (Sonden and Tigerstedt, C. Tigerstedt, and Benedict and Talbot). 

 The two crosses represent the values found by Sonden and Tigerstedt with boys during sleep. 



s. 8 



10 11 12 13 14 15 16 17 18 



FIG. 34. Basal heat production of girls per kilogram of body-weight per 24 hours 

 referred to age (Sonden and Tigerstedt, and Benedict and Talbot). 



The striking feature of these charts is the great difference between 

 the values reported by Sonden and Tigerstedt and those in our 



