52c Canadian Arctic Expedition, 1913-18 



the staple dietary of the Eskimo consists of raw or only imperfectly cooked food, 

 so that their type of mastication must likewise be not only excessively vigorous, 

 but also excessively unconventional. From the foregoing remarks it. has become 

 increasingly evident that the traction of the muscles of mastication on the, 

 lateral aspects of the cranium must exert a far-reaching influence upon its 

 modelling and configuration — an effect which is probably not yet fully appreci- 

 ated. The author would therefore like to put forward the theory that the type 

 of mastication adopted by the Eskimo in negotiating his tough food has con- 

 tributed, in no small measure, its effect in producing his characteristic type of 

 cranium. This decision will however have to be confirmed by the examination 

 of a much more extensive series of Eskimo crania, and this will require to be 

 undertaken in the future, when the necessary facilities are obtainable. For 

 this purpose the author would indeed be most grateful for the loan or presenta- 

 tion of crania belonging to this most interesting race. 



