356 



DR MATTHEW YOUNG. 



duo perhaps to intermixture, through an ancestor of a strain of some race in which 

 a platyrhine nose was an ethnic character." 



Owing bo the fact that the mandibles have not been preserved, it is impossible to 

 obtain a complete or nasio-mental facial index for the present series. The maxillo- 



facial index or upper facial index of Kollmann, i.e. 



nasi-alveolar length x 100 



interzygomatic breadth ' 

 has been calculated, however, for both the male and female groups, and in the former 

 the skulls may be arranged in the following way, adopting Turner's modification of 



Kallmann's mode of arrangement : — 



Table VIII. 



Class. 



West Scottish Series. 



Turner's Series. 



No. 



Per cent. 



No. 



Per cent. 



Leptoprosopic (50 '1 and upwards) 

 Mesoprosopic (45-50) .... 

 Chamaeprosopic (below 45) 



380 



18 



1 



95-2 



4-5 

 •2 



72 

 7 

 



91-1 



8-8 

 



While in Turner's series a relatively small proportion has been transferred 

 from the leptoprosopic to the mesoprosopic group, there is a remarkably close 

 similarity between the proportions contained in the respective groups in the two 

 series of skulls. The general type of face in the series under examination is even 

 more notably leptoprosopic than in Turner's series. 



As regards the palato-alveolar or palato-maxillary index, I have adopted the 

 classification devised by Turner, and the grouping for the 399 male skulls is as 

 follows : — 



Table IX. 



Class. 



West Scottish Series. 



Turner's Series (82). 



No. Per cent. 



No. Per cent. 



1 



Hyperdolichuranic (below 105) . 

 Dolichuranic (105-110) .... 

 Mesuranic (110-115) .... 

 Brachyuranic (115-120) .... 

 Hyperbrachyuranic (above 120) . 



55 

 96 

 85 

 81 

 82 



13-8 



24 



21-3 



203 



20-5 



11 

 20 

 15 

 17 

 19 



13-4 

 24-4 

 183 

 20-7 

 23-1 



A comparison of the percentages in the corresponding groups requires no 

 comment : the close similarity is obvious. In the series of 400 male skulls the 



