170 



Søren Hansen. 



As to the weight, the facts have served to confirm the theory 

 propounded by Morselli ^), according to which the lower jaws of 

 men are heavier than those of women; all the skulls which, for 

 independent reasons, particularly' the development of the muscle 

 insertions, I have considered to be male having heavier, and in fact 

 much heavier, lower jaws than those I had ranked as female. I 

 must, however, not omit to call attention to the admission I made 

 above, that I could not regard the general determination of sex as 

 quite certain in all cases. This is particularly the case as to 

 no. 14, the edges of w^hich have been knocked off, and which as a 

 whole has suffered a good deal from wear and tear, as well as 

 nos. 10, 12 and 15, w^hich are not quite full-grown. The deter- 

 mination of the sex of skulls is in general a matter of difficulty, 

 and in the case of the Eskimo often practically impossible^) 

 (amongst other reasons, on account of the slight development of the 

 arcus supraorbitalis). I hesitate therefore to regard conclusions 

 arrived at in an examination of such a small series, as a demon- 

 stration of a theory which, indeed, does not appear to be definitely 

 established or generally accepted. The facts as they are will be 

 seen from the following table, where the 14 lower jaws are arranged 

 according to the weight in grams. 



The distinguishing mark of these East Greenland skulls is a 

 development on typical lines of the features peculiar lo all other 

 genuine Eskimo races, wilh those features somewhat exaggerated. 



') Sul peso del cranio e dello mandibola in rapporto col sesso. Arcli. ])er. 



lAntrop. e I'Etnol. 1875. Ref. in Revue d'Anthro]). V, 187(), p. 711. 

 '-) Cf. Bessels: Die Inuit des Smith-Sundes. Arciiiv für Anthropologie VIII. 1S7."), 



p. И.'). 



