PHYSICAL AND PHYSIOLOGICAL MEASUREMENTS. 75 



we find the values given in comparison with the gross correlations in the 

 final column of table 17. 



Correction for age has not materially changed the values. 



The most interesting point about these results is the persistently 

 negative values for the women. We shall note that women seem to 

 differ from men in several correlations to be considered later. 



The distribution of the individual observations for the grand total 

 male (^ = 121) and grand total female (AT = 90) series is shown in the 

 two scatter diagrams 5 and 6. The straight lines are given by the 

 equations : 



Men, p =59.7782+0.0232 w Women, p =78.5659-0. 1775 w 



The slightness of the slope of the lines and the wide scatter of the dots 

 about the theoretical mean values show clearly the insignificance of 

 the relationship between body- weight and pulse-rate in our series. 



2. STATURE AND PULSE-RATE. 



In the series of infants the correlation between stature (length) and 

 pulse-rate is: 



For males N = 5l r, p = 0.1529 0.0922 r/E r = l.QQ 



For females tf = 43 r sp = 0.0981 0.1019 r/ r = 0.96 



Difference 0.0548^0.1374 



For both W = 94 r, p = 0.1294 0.0684 r/# r = 1.89 



The value for the males is higher, but in comparison with its prob- 

 able error certainly not significantly higher, than that for the females. 

 Neither of the constants taken alone can be considered to differ sig- 

 nificantly from zero. That all three are positive in sign suggests that 

 there may be some slight positive relationship between stature and 

 pulse-rate in infants. 



But pulse-rate is more closely correlated in infants with body- 

 weight. Thus comparing the correlations of stature and weight we 

 have the following values : 



For itaturg For weight and Difference in 



and pulse-rate. pulse-rate. correlation. 



Males 0.15290.0922 0.31140.0853 0.15850.1256 



Females.. 0.09810.1019 0.15700.1003 0.05890.1430 



Difference 0.05480.1374 0.15440.1317 



For both 0.1294 0.0684 0.2289 0.0659 0.0995 0.0950 



For both males and females the correlation between weight and 

 pulse-rate is higher (but in comparison with its probable error not 

 significantly higher) than that between length and pulse-rate. 



Since stature and weight are closely correlated, i,e., in infants 



For males r m = 0.7703 0.0384 



For females r^ = 0.8642 0.0260 



For both r = 0.8209 0.0227 



