THROUGHOUT THE AMERICAN ABORIGINES. 



TABLE IV.-COMPARATIVE CRANIAL MEASUREMENTS. 



431 





I" 



as 



11 



?! 



r 2 



la S 



si 



a "3 



1— 1 +3 



I.M. 



Line. 



Occipito- 

 frontal 

 Arch. 



.2 =i 



u o 

 o s* 



Wb 





6.5 



6. 



4.5 



6.2 



16. 



4.5 



13.8 



19.8 



Peruvian 



6.1 

 6. 

 6.8 

 6.4 



6. 



5.9 

 5.5 



5.7 



4.7 

 4.4 

 4.6 

 4.5 



5.5 



5. 



6. 



5.4 



16. 

 15.5 

 15.6 

 14.6 



4.5 

 4. 

 4.4 

 4.5 



14. i 

 13.2 

 14.6 

 13.5 



19.5 





19. 





19.9 





20.2 







Iroquois 



7.5 



7.8 

 1.5 



1.2 



5.5 



5.1 

 5.6 

 5.3 



4.5 

 4.2 

 4.1 

 4.3 



5.7 

 5.4 

 5.8 

 5.5 



15.2 

 14.2 

 14.4 

 15. 



4.5 

 4.5 

 4.3 

 4.4 



15.1 

 15 5 

 14.9 

 14.2 



20.8 





20.8 





20.8 





19.8 









1.5 

 7.3 

 1.5 

 6.1 



5.4 



5.5 

 5.1 

 5. 



4.6 



4.4 

 4.3 

 4.4 



5.4 

 5.3 

 5.5 

 5. 



14.3 

 14.1 

 14.8 

 13.6 



4.1 

 4.3 

 3.9 

 4. 



15.2 

 14.4 

 15.5 

 13.9 



20.4 

 20.3 

 20.3 

 18.9 



If the data which this table supplies furnish any fair illustration 

 of the cranial measurements of the different nations selected, it is 

 scarcely possible to avoid the conclusion, that — in so far as this test 

 is to be relied on, — if a line of separation is to be drawn, it cannot 

 be introduced, as heretofore, to cut off the Esquimaux from all others, 

 but must rather group the Iroquois with them, on the one side, while 

 the Toltecans and the Mound-builders stand as the representatives 

 of a diverse class, on the other. These examples I refer to in preter- 

 enceto thosederived from other sources, or presented in the previous 

 table as the result of my own observations, as they are necessarily 

 unbiassed. They are the specimens of the very races referred to, 

 selected or brought by chance under the observation of Dr. Morton, 

 and included as the characteristic or sole examples in his great work. 

 But the same conclusions are borne out by the examples obtained within 

 the Canadian frontiers ; and they seem to me to lead inevitably to this 

 conclusion: that if crania measuring in some cases, two inches in excess 

 in the longitudinaloverthe parietal and vertical diameters, and in others 

 nearly approximating to such relative measurements, — without further 

 reference here to variations in occipital conformation, — if such crania 

 may be affirmed, without challenge, to be of the same type as others 

 where the longitudinal, parietal, and vertical diameters vary only by 

 small fractional differences, then the distinction between the brachy- 

 cephalic and the dolichocephalic type of head is, for all purposes of sci- 

 ence, at an end, and the labours of Blumenbach, Betzius, Nilsson, and 

 all who havetrodiutheirfootsteps have been wasted in pursuitof anidle 



