PHYSICAL AND PHYSIOLOGICAL MEASUREMENTS. 



95 



differences between them are not large. The addition of the correction 

 for age to that for stature has not greatly influenced the measure of 

 the degree of interdependence between weight and heat. 



TABLE 31. Comparison of gross correlation between weight and total heat-production and 

 partial correlations between weight and heat-production for constant stature, constant age, 



and constant stature and age. 



8. STATURE AND TOTAL HEAT-PRODUCTION. 



In infants the correlation between stature (length) and total heat 

 produced is fairly high. The results are : 



For males A T = 51 



For females . . . N = 43 



r s h= 0.6191 0.0582 

 r s h= 0.7426 0.0461 



r/E r = 11.22 



Difference . . . . 0.1235 0.0719 



Both constants are unquestionably significant. That for females 

 is somewhat higher than that for males. In comparison with its 

 probable error the difference can not, however, be considered signifi- 

 cant. Disregarding sex the correlation for the 94 babies is : 



r th = 0.6848 =t 0.0369 r/E r = 18.56 



Expressing these results in terms of actual change in total heat- 

 production with differences in stature we have the following equations 



For males h = -229.58 +7.34 



For females h = -252.55 +7.83 



which are represented graphically in diagram 14. 



The excellent agreement of the results for the two sexes is shown 

 by the close parallelism of the two lines. While the observed means 

 are very irregular because of the limited number of individuals, these 

 straight lines serve fairly well to represent them, and until further 

 data are available it is not worth while to try equations other than the 

 linear. 



