Morton’s Crania Americana. 373 
“2d. That the American nations, excepting the polar tribes, 
are of one race and one species, but of two great families, which 
resemble each other in physical, but differ in intellectual character. 
“3d. That the cranial remains discovered in the mounds from 
Peru to Wisconsin, belong to the same race, and probably to the 
Toltecan family.” Dr. Morton subjoins the following 
“Nore on the internal capacity of the cranium in the different 
races of men. Having subjected the skulls in my possession, and 
such also as I could obtain from my friends, to the internal ca- 
pacity measurement already described, I have obtained the follow- 
ing results. The mean of the American race (omitting fractions) 
is repeated here, merely to complete the table. The skulls of 
idiots, and persons under age, were of course rejected. 
Mean internal capa-| Largest in | Smallest in 
Races. No. of skulls. | city in ;eabte dach. the series. | the series. | 
1. Caucasian, | 109 
2. Mongolian, 10 83 93 69 
. Malay, 18 ; 81 89 | 64 
A. American, ~_ 147 a... 100 | 60 
| 5. Ethiopian, >| 29 78 94 | 65 
“1st. The Caucasians were, with a single exception, derived 
from the lowest and least educated class of society. It is proper, 
however, to mention that but three Hindoos are admitted in the 
whole number, because the skulls of these people are probably 
smaller than those of any other existing nation. For example, 
Seventeen Hindoo heads give a mean of but seventy-five cubic 
inches ; and the three received into the table are taken at that 
average. ‘I'o be more specific, we will give, in detail, the num- 
ber of individuals of each pags as far as ascartabeisd 
Anglo-Americans, cea a . 
German, Swiss and Dutch, og 
Celtic, Trish and ae ; 
ish, 
Guanché, (Lybin,) 
? 
Europeans not ascertained, 
Total, . 52 
2d. The Mongolians measured, ‘onint of Chine and Eski- 
maux, and what is worthy of remark, three of the latter give a 
mean of 86 cubic inches, while seven Chinese give but 82. 
