1905.] SCANDINAVIAN CRANIA. 15 



dolicho- and brachy-cephalic skulls, but presented an average of 

 length shorter than both of the others. 



As formerly described 1 ) this diameter was subdivided into 

 frontal, parietal and occipital segments in terms of lines dropped 

 perpendicularly from the bregma and lambda so as to express 

 the greatest lenglh in præ-bregmatic, parietal and post-lambdoidal 

 segments. 



(a) Dolicho-cephalic. 



(1) The præ-bregmatic segment varied from 64 to 80 mm., 

 giving an average of 72 mm. and a percentage pro- 

 portion of the total length represented by 38.5. 



(2) The parietal segment varied from 99 to 115 mm., giving 

 an average of 106 mm. or an average of 56.7 per cent. 

 of the total length. 



(3) The post-lambdoidal segment varied from 2 to 13 mm., 

 giving an average of 8.6 mm. or a percentage of 4.6 of 

 the total length. 



Contrasting these figures with the Australian Aboriginals 

 we find a very close correspondence in the post-lambdoidal 

 segment; a distinct reduction as regards the Scandinavian præ- 

 bregmatic segment with a corresponding increase in the parietal 

 segment of the same group. 



(b) Brachy-cephalic. 



(1) The præ-bregmatic segment varied from 67 to 86 mm., 

 giving an average of 75.8 mm. and an average of 41.5 

 per cent. of the total length. 



(2) The parietal segment varied from 95 to 102 mm., giving 

 an average of 100.8 mm. or an average of 55.2 per cent. 

 of the total length. 



(3) The post-lambdoidal segment varied from to 10 mm., 

 giving an average of 6 mm. or 3.2 per cent. of the total 

 length. 



Placing these figures against similar calculations from brachy- 

 cephalic skulls of Sandwich Islanders we find a decided increase 

 of the præ-bregmatic segment of the Scandinavian skulls both 



') Hepburn, loe. cif. 



