Morton^s Crania Americana. 367 



Inter-mastoid arch, .... 16. inches. 



Inter-mastoid Ihie, .... 4.5 do. 



Occi pi to-frontal arch, . . . . 14.1 do. 



Horizontal periphery, .... 1^.^ do. 



Internal capacity, .... 83. cubic inches. 



Capacity of the anterior chamber, 33.5 do. 



Capacity of the posterior chamber, 49.5 do. 



Capacity of the coronal region, 15.75 do. 



Facial angle, 81 degrees." 



Dr. Morton gives the result of the measurement of twenty- 

 three adult skulls of the pure Inca race. " The mean of the in- 

 ternal capacity is 73 cubic inches, which is probably lower than 

 that of any other people now existing, not excepting the Hin- 

 doos." The mean of the anterior chamber is 32, of the poste- 

 rior, 42, of the coronal region, 12 cubic inches. The highest 

 measure of the coronal region is 20.5, and the smallest 9.25 cu- 

 bic inches. The mean facial angle is 75 degrees. The heads of 

 nine Peruvian children appear to be nearly, if not quite as large, 

 as those of children of other nations at the same age. p. 133. 



The small size of the brains of this race, compared with that of 

 the Europeans who invaded them, is in accordance with the ease 

 with which the former were overcome and retained in subjection. 

 The deficiency in the posterior region of the brain, in which the 

 organs of the domestic affections are situated, corresponds with 

 their feeble conjugal attachment and indifference to the lives of 

 their children. The diameter from constructiveness to construc- 

 tiveness, is stated by Mr. Phillips to be 4.5 inches, and from 

 ideality to ideality, 5.1. These organs give a talent for art, and 

 are considerable. The same measurements in the Naumkeagh, 

 the race which occupied New England, and whose skulls are still 

 dug up near Boston and Salem, and which never made any at- 

 tainments in the arts, are 4.1 and 4 inches, respectively. Dr. 

 Robertson, in his history of America, mentions that the modern 

 Peruvian race was distinguished for its extraordinary powers of 

 concealment and secrecy. Mr. Phillips states the breadth from se- 

 cretiveness to secretiveness to be 5.6 inches, which is large ; the 

 longitudinal diameter is only 6.1. The region of combativeness 

 also appears to be deficient in these skulls. 



The IR0Q.U0IS confederacy, consisted originally of five nations, 

 the Mohawks, Oneidas, Onondagas, Cayugas and Senecas. They 



