398 



DR MATTHEW YOUNG. 



in the Aino series, which, unless my treatment of the series is " not entirely satis- 

 factory," goes to disprove Pearson and Lee's second conclusion, namely, "that 

 woman tends with advance in civilisation to gain in correlation on man." 



The comment of Dr Lee (Phil. Trans., vol. cxcvi, A, 1901) on Dr F. Boas' (26) 

 statement to the effect that " the relation between capacity and head diameters is 

 found to be of fundamental importance, and among these the relation of transversal 

 diameter and capacity is more significant," is that she thinks it is only true for fairly 

 brachycephalic races. He is dealing with 87 Sioux Indian skulls with a cephalic 

 index of 79. Here we have a series of 405 Scottish skulls, with a cephalic index of 74'4 

 — distinctly dolichocephalic,— -and the correlation between capacity and breadth is 

 definitely greater than that between capacity and length or height. 



It would be comparatively easy from the data supplied in the above tables to 

 construct a formula from the three absolute dimensions of the skull which would 

 give the capacity in the Scottish type. 



Let us now compare circumferences and capacity : — 



Table XLI. 



Race. 



C and U. 



C and Q. 



C and S. 



M. 



•78+ -013 



•82+-026 

 ■681 ±-040 

 •813+-016 



F. 



M. 



F. 



M. 



F. 



Scottish 

 English 

 Naquada 

 Theban mummies 



•73+-032 



•848+-021 

 •723+-030 

 •826+-033 



•76+-041 

 •812+-027 

 •656+-042 

 •788+-018 



•72+-032 

 •744+-034 

 •603+ -039 

 •673+-038 



•714+-039 



•811 + -026 



Examining the above table, we observe that the coefficients of correlation for 

 horizontal circumference and capacity and transverse arc and capacity are in the 

 Scottish series in each case of greater value in the male than in the female, but that the 

 two male coefficients are approximately equal, and that the two female coefficients arc 

 even more nearly so. The coefficients are smaller in value than the corresponding 

 coefficients in the English series, except that the coefficient for transverse arc and 

 capacity is approximately equal in both. There is a close resemblance between the 

 correlation in the English series and that obtaining in the Theban mummies, while 

 both show distinctly greater values for correlation coefficients than the Naquada. 



In the English series the female is more highly correlated than the male with 

 regard to C and U and C and S, whereas the opposite relationship is evident in regard 

 to C and Q. 



I have estimated the correlation coefficients for some absolute measurements for 

 which I can obtain no comparative data. With regard to the correlations of minimum 

 frontal breadth (B'), we have the following table : — 



