SOCIETY OF THE UNIVERSITY OF ABERDEEN. 91 



the series of skulls before us, so far as one can judge from the few 

 indices obtainable with accuracy, we find that : 



Breadth index = variable ; two of each class. 



Height index = Akrocephalic. 



Alveolar index = Prognathous. 



Nasal index = variable. 



Orbital index = Megaseme. 



Capacity = Microcephalic. 



Horizontal circumference = 450 to 480 mm. 



These results differ materially from those recorded by the 

 authorities quoted. The principal difference is with regard to the 

 height of the skulls which are extremely high. The orbits are rather 

 square, and the horizontal circumference is small. 



However, as our figures are so few, it would not be very wise to 

 speculate about the reason of these differences. We can only say 

 that these skulls belong to a people of a low type, as evidenced by the 

 small cranial capacity and prognathism, and of a mixed race. One of 

 our specimens, No. 2, stands apart from the others on account of its 

 comparatively large cranial capacity and orthognathism. As the 

 natives are cannibals, one might account for this fact by suggesting 

 that it is the skull of a stranger belonging to a different tribe or race, 

 who had been unfortunate enough to fall into the enemies' hands. 



As regards other anatomical characteristics of the skulls, 

 Wormian bones are present in all but two, and in ten cases these 

 are situated in the lambdoidal suture. At the pterion, where the 

 frontal bone usually articulates with the great wing of the sphenoid 

 for about half an inch, there is a tendency for this short suture to be 

 reduced in length, and in two cases, Nos. 1 and 8, it is absent alto- 

 gether, the temporal bone articulating directly with the frontal. One 

 skull, No. 11, possesses a frontal or metopic suture. It was not 

 found possible to ascertain the sex, because in most of them the 

 sexual features have been obscured by decoration. Three of them 

 are the skulls of children ; two of them, Nos. 4 and 7, about six years 

 of age ; and the other, No. 13, about seven or eight, judging by the 



