Scott. — Osteology of the Maori and Moriori. 



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the region to the north ; while my series of thirty-three 

 Ngaitahu skulls give, as we have seen, an index of 48. It 

 must be remembered, however, that the nasal index has been 

 found to vary much even in races which are generally regarded 

 as fairly pure. 



Gnathic Index. 



According to the averages all the groups are orthognathous, 

 with the exception of the most northern, whiclv is very 

 slightly mesognathous. The range of variation is 12-9. Of 

 the thirty-three of the Ngaitahu Tribe measured, eighteen, or 

 54-5 per cent., are orthognathous ; twelve, or 36-4 per cent., 

 are mesognathous; three, or 9-1 per cent., are prognathous. 

 And of the sixty-two skulls which form the entire series, thirty- 

 eight, or 61-3 per cent., are orthognathous; twenty, or 32-3 

 per cent., are mesognathous ; while only four, or Q-^ per 

 cent., are prognathous. The comparatively high index of the 

 northern group seems to be the usual arrangement, for Pro- 

 fessor Flower's set, omitting the child's skull, has an average 

 index of 98-2, and Sir William Turner's of 100 ; giving with 

 mine an average of 98-4 for thirty-four skulls from this 

 district. 



Opheyo-spino-aueicular Angle. 



As the gnathic index shows the projection of the whole 

 face, so this angle shows the degree of projection of the parts 

 above the alveolar arch. This table, therefore, does not 



