THE MEXICANS. 



153 



Occipito-frontal arch. 



Horizontal periphery. 



Internal capacity, . 



Capacity of the anterior chamber. 



Capacity of the posterior chamber, 



Capacity of the coronal region. 



Facial angle. 



14. inches. 

 20.5 inches. 

 83. cubic inches. 

 39. cubic inches. 

 44. cubic inches. 

 17.5 cubic inches. 

 72 degrees. 



PLATE XVII. 



MEXICAN. 



With a better forehead than is usual, this skull presents all the prominent 

 characters of the American race — the prominent face, elevated vertex, vertical 

 occiput, and the great swell from the temporal bones upward. Of the particular 

 tribe to which this individual belonged I am not informed ; and I should have 

 hesitated to present it as a genuine Mexican had I not received, through Mr. 

 Joseph Smith, late of this city and now of Mexico, a skull which corresponds 

 with it in almost every particular, from an ancient tomb at Tacuba. Of the 

 latter I subjoin, at the end of the following measurements, three diagrams for the 

 purpose of comparison. 



MEASUREMENTS. 



Longitudinal diameter. 

 Parietal diameter, . 

 Frontal diameter, . 

 Vertical diameter, . 

 Inter-mastoid arch, . 

 39 



6.8 inches. 



5.5 inches. 



4.6 inches. 

 6. inches. 



15.6 inches. 



