98 A BIOMETRIC STUDY OF BASAL METABOLISM IN MAN. 



The results for the relationship between stature and total heat in 

 the two sexes may be conveniently compared in diagram 15 for men 

 and 16 for women. The straight-line equations are: 



For men h= -1237.637+16.589* 



For women h = 226.585+ 6.931 s 



Thus heat-production increases about 16.6 calories per day in men 

 and 6.9 calories per day in women for each variation of 1 cm. in stature. 

 The constant term fixes the position of these lines when represented 

 graphically. The averages represented in diagram 17 show that the 

 heat-productions for men are regularly higher than those for women of 

 the same stature. There is a strong suggestion of non-linearity in the 

 case of the averages for men, but the numbers of individuals in the 

 classes, especially the very tall and the very short individuals, is so 

 small that detailed mathematical analysis seems unprofitable at present. 



-1785 



/ess 



i4SS 



:SS 



I08S 



SSS 



ISO 



IS5 



160 



1G5 



no 



I7S 



ISO 



STATURE IN CENTIMETERS 



DIAGRAM 16. Distribution of total daily heat-productions of women of various statures. 



We have now to consider the problem of the relative magnitude of 

 the correlations for body-weight and total heat-production and stature 

 and total heat-production. Total heat is correlated with weight some- 

 what more closely than with stature in both males and females. The 

 differences for infants are : 



Stature and 

 total heat. 



Males 0.6191*0.0582 



Females . . . . 0.7426 * 0.0461 



Difference 0.1235*0.0719 



Both sexes . . . . 0.6848 * 0.0369 



Weight and 

 total heat. 



0.7520*0.0411 

 0.8081*0.0357 



0.0561*0.0544 

 0.7833*0.0269 



Difference in 

 correlation. 



0.1329*0.0712 

 0.0655*0.0583 



0.0985*0.0457 



On the basis of the present data for infants the differences in the 

 correlations can not be considered statistically significant. 



The more extensive data for adults also consistently show higher 

 correlations between weight and total heat than between stature and 



