30c Canadian Arctic Expedition, 191S-18 



CRANIAL INDICES 



Cephalic index 67-9 



Index of height 69-0 



Breadth-height index 101-6 



Alveolar index 100-0 



Orbital index 92-9 



Nasal index 36-4 



MaxiUo-facial index 53-9 



Stephano-zygomatio index 66-7 



Fronto-parietal index 71-7 



Palato-maxillary index 105-8 



Nasion-prosthion height index 22-4 



XIV F-24 



The greater part of the calvaria is present except the left half of the frontal 

 and the anterior part of the left parietal. There are huge right and left Wormian 

 bones, almost symmetrical in shape and arrangement, situated in the lambdoidal 

 suture. They are triangular in outline with the apex towards the asterion, and 

 in dimensions almost exactly correspond (61 x 58 x 36-5 mm.). They are com- 

 pletely separated from one another by a tongue-shaped process. (See Plate VIII). 



The superior maxillae and a mandible evidently of one adult individual — 

 probably female. 



All the incisors, the canines, the right premolars and the first molars are 

 present in the superior maxillse", and exhibit excessive wear. The alveoli for the 

 other teeth are present. 



The teeth had fallen out of the mandible, but all had been in existence at 

 death. 



The mandible is slenderly built, and is unfortunately damaged at both 

 angles. The latter are very obtuse, the right measuring 130° approximately. 



MEASUREMENTS 



(1) Intergonial width — not possible. 



(2) Vertical height from the ridge between the two incisor teeth to the lower border of the 



symphysis — 33 mm. 



(3) Distance from the inner edge of the alveolus of the third molar tooth to the lower border 



of the mandible — Right, 20-5 mm.; left, 21 mm. 



(4) Index of the mandible — 



20-5X100 



Right = 62-1 



33 



21X100 



Left =63-6 



33 



(5) Thickness of the mandible measured from the inner border of the alveolus of the third 



molar tooth to the point where the anterior border of the ramus joins the body of the 

 mandible — Right, 15-5 mm.; left, 16-5 mm. 



(6) Height of right ramus, measured from the bottom of the sigmoid notch — 45 mm. 



(7) Width of the right ramus measured at right angles to its borders — 38 mm. 



(8) Index of width of the right ramus — 



38X100 



= 84-4 



45 



