Morton’s Crania Americana. 367 
Inter-mastoid arch, coy Soe be Tielke 
Tuter-mastoid line, sh SE a 
Occipito-frontal arch, . . . . 141 do. 
Horizontal periphery, . . . . 19.5 do. 
Internal capacity, : . 83. cubic inches. 
Capacity of the anterior Marah: 33.5 do. 
Capacity of the posterior chamber, 49.5 do. 
Capacity of the coronal region, 15.75 — do. 
Facial augle, . . . . 81 degrees.” 
Dr. Morton gives the result of the: measurement of twenty- 
three adult skulls of the Inca race. ‘‘'The mean of the in- 
ternal capacity is 73 cubic fithes, 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 Inoquors confederacy, consisted originally of five nations, 
the Mohawks, Oneidas, Onondagas, Cayugas and Senecas. They 
