DISCUSSION OF RESULTS. 



153 



results. A chart has therefore been plotted (see figure 55) giving the 

 total heat produced per 24 hours for the different infants and the 

 average body-weight for a normal infant at the age when the metab- 

 olism was observed. Here again no special uniformity is seen, 

 although in general those infants with the largest body-weight have 

 the largest heat-production. On the other hand, with infants ranging 

 from 6.3 to 7.3 kilograms, many instances were found when both very 

 low heat-production and high heat-production are noticed. 



NORMAL 

 WEI&HT 

 FOR AG£ 



TOTAL HEAT PER 24 HOURS 



92 



8.4 



7.6 



6.8 



ao 



5.2 



4.4 



3.6 



~K 



JVa 



TH5 



_JB..ES_ 

 A.D 



KR 



65 



m. 



AL 



LO 



MM 

 LB 



ER 



JVa 



WP 



JS 



DO 



FM 



EL 



AS- 



EF 



RE..MC 

 LRB 



DM 



MA 



EN 



FB 



FK 



JP 



HT 



PS 



RL 



PW 



EG 



■JM 



165 



195 225 255 285 315 345 375 405 435 465 



Fig. 55. Chart showing the normal weights for the ages of the infants under observation and 

 the total heat-production per 24 hours. 



COMPARISON OF NORMAL BODY-WEIGHT AND HEAT-PRODUCTION PER 

 KILOGRAM OF ACTUAL BODY-WEIGHT. 



In an attempt to reduce one factor in the comparison to a common 

 basis, the values for the heat produced have been computed on the 

 basis of per kilogram of body-weight, using the average weight for 

 normal infants of the same age (see figure 56). No greater uniformity 

 is apparent here than in the preceding charts and evidently no corre- 

 lation can be found between the computed normal body-weight and 

 total heat-production either on the basis of the total heat per 24 hours 

 or the heat per kilogram of body-weight. 



COMPARISON OF EXPECTED BODY-WEIGHT AND TOTAL HEAT-PRODUCTION 



IN 24 HOURS. 



The average body-weights of healthy infants used in the foregoing 

 comparisons are based upon the assumption that the infant was of 

 normal weight at birth. Since the birth-weights of many of our infants 



