A CONTRIBUTION TO THE STUDY OF THE SCOTTISH SKULL. 



385 



the Scottish series shows the highest value, the English the least, and Naquada 

 is intermediate ; for intermalar breadth the English has the highest coefficient 

 and Naquada the smallest ; for interzygomatic breadth the same relationship 

 holds ; for nasal height the Scottish shows the highest value, the English the 

 least ; for nasal breadth the English group has the highest value and the Scottish 

 the smallest. 



For orbital breadth (left orbit) Naquada is most, and English least, variable ; for 

 orbital breadth (right orbit) Naquada is most variable, but now Scottish is least 

 variable ; for orbital height (left) the Naquada is most variable and the English 

 group least ; for the right orbital height Naquada is still most variable, but now 

 Scottish is least variable ; while for basi-alveolar length the Scottish group is most, 

 the English group least, variable. For the female the relationship of the variabilities 

 is equally changeable, and I think we can represent it best in the following way : — 



Table XXXII. 



• 



Male. 



Female. 



Character. 



















Most Variable. 



Least Variable. 



Most Variable. 



Least Variable. 



B' . 



Naquada 



English 



English 



Scottish 



LB . 









D 



Scottish 



Naquada 



ii 



G'L . 









Scottish 



English 



English 



ii 



GB . 









English 



Naquada 



)> 



jj 



J . 









ii 



'» 



Naquada 



>! 



NH . 









Scottish 



English 



!> 



English 



NB . 









English 



Scottish 



English 



Scottish 



0^. 









Naquada 



English 



Naquada 



English 



OjR . 









>! 



Scottish 





Scottish 



2 L. 









J) 



English 



>> 



English 



2 R. 











Scottish 





!> 



GL . 









Scottish 



English 



Scottish 



>> 



The English group is most often least variable in the male skulls as regards those 

 dimensions, and the Scottish is least variable of the three most frequently in the 

 female sex. 



We have still to compare the variability of the various indices, and material for 

 this purpose is more abundant. The variability is determined in the case of indices 

 by the standard deviation. 



[Table. 



