THE VARIATIONS DURING LIFE 



117 



varying in age from minus I month (an infant born I month too 

 early) to 35 years. 



HEAT PER SQUARE METER (MEEH) PER 24 HOURS 



625 575 625 675 725 775 825 875 925 975 1025 1075 1125 1175 1225 1275 1325 1375 



FIG. 34. From " Amer. Journ. Diseases of Children," 1914, 8, 45 (Benedict and Talbot). 



TABLE XXVII6. THE VARIATION OF STANDARD METABOLISM WITH AGE. EXPERIMENTS 



ON MAN. 



It is obvious from this table that the standard metabolism increases 

 in infants with increasing age, and the increase is so large during the 



1 The averages are calculated from the average figures given by B. and T. for each 

 subject, and no account has been taken of the varying number of determinations, on which 

 these averages are based, and the resulting very different "weights" of the figures here 

 averaged. For this reason a detailed calculation of deviations has been omitted, and it has 

 only been roughly ascertained that the standard deviation in the different series is about 

 10 per cent, or less (see p. 133), and the averages given therefore reliable to within 5 to 2 

 per cent. A full statistical treatment of the splendid material brought together by B. and 

 T. would almost certainly yield results of very great interest. 



2 M.-L. and F.'s determinations have been calculated on the basis of a R.Q. = 0-82 

 which at all events comes very near the truth. 



