226 



CRANIA AMERICANA 



This is a small, thin skull, covered, when I received it, with very long, black hair, 

 which was removed to make the drawing. 



MEASUREMENTS. 



Longitudinal diameter. 

 Parietal diameter, . 

 Frontal diameter, . 

 Vertical diameter, . 

 Inter-mastoid arch, . 

 Inter-mastoid line, . 

 Occipito-frontal arch. 

 Horizontal periphery, 

 Internal capacity, . 

 Capacity of the anterior chamber. 

 Capacity of the posterior chamber. 

 Capacity of the coronal region. 

 Facial angle, . . . . 



6.2 inches. 

 5.4 inches. 



4.3 inches. 

 4.9 inches. 



14.6 inches. 



3.8 inches. 

 13.3 inches. 

 18.5 inches. 

 74.5 cubic inches. 

 30. cubic inches. 

 44.5 cubic inches. 

 14.5 cubic inches. 



71 degrees. 



PLATE LVII. 



SKULL FROM A TUMULUS IN THE VALLEY OF RIMAC, IN PERU. 



The tumulus from which this relic was obtained is about a mile and a half 

 to the south of Lima. It is nearly two hundred feet in height, and was opened 

 a few years since by the French consul, in search of antiquities. During the 

 progress of excavation several skulls were thrown out, four of which were obtained 



