| RACES. | MEAN. | MAX. | MIN. | DIFF. | ||
| English | 96 | 105 | 91 | 14 | ||
| Germans | } | 90 | { | 114 | 70 | 44 |
| Anglo-Americans | } | { | 97 | 82 | 15 | |
| Arabs | 89 | 98 | 84 | 14 | ||
| Greco-Egyptians of the Catacombs | 88 | } | 97 | 74 | 23 | |
| Irish | 87 | } | 78 | 19 | ||
| Malays | 86 | } | 68 | 29 | ||
| Persians | } | 84 | } | 94 | 75 | 19 |
| Armenians | } | } | ||||
| Circassians | } | } | ||||
| Iroquois | } | } | 104 | 70 | 34 | |
| Lenapes | } | } | ||||
| Cherokees | } | } | ||||
| Shoshones | } | } | ||||
| African Negroes | } | 83 | { | 99 | 65 | 34 |
| Polynesians | } | { | 84 | 82 | 2 | |
| Chinese | } | 82 | { | 91 | 70 | 21 |
| Creole Negroes of North America | } | { | 89 | 73 | 16 | |
| Hindoos | } | 80 | { | 91 | 77 | 14 |
| Ancient Egyptians of the Catacombs | } | { | 96 | 68 | 28 | |
| Fellahs | } | { | 96 | 66 | 30 | |
| Mexicans | 79 | 92 | 67 | 25 | ||
| Peruvians | } | 75 | { | 101 | 58 | 47 |
| Australians | } | { | 83 | 68 | 15 | |
| Hottentots | } | { | 83 | 63 | 20 | |
This table, borrowed from one of the most eminent supporters of polygenism, should, I think, excite reflections in all who pay any attention to facts.
We find the Chinese placed, by their mean cranial capacity, below the Polynesians, the African Negroes, and the savage tribes of North America. Is this really the position which their civilization assigns to them?
In Morton’s table the Creole Negroes of America fall below the African Negroes by the lesser development of the same cavity. Meigs has confirmed this curious fact in several ways, and has even made the difference still wider; 80·8 for the former and 83·7 for the latter. And yet it is universally acknowledged that Negroes born in America are intellectually superior to their African brothers. Even Nott allows that it is so. With them, therefore, the intelligence increases, while the cranial capacity diminishes.
This fact is the more singular since the observations of M. Broca upon Parisian skulls of the thirteenth to the nineteenth century show that the Cranial capacity increases with general intellectual progress. The measurements taken by the same observer upon individuals belonging to the educated and illiterate classes lead to the same conclusion.
Still, however, we cannot disregard the calculations of Morton and Meigs; and this experience, bearing upon numerous populations of the same race, seems to establish beyond a doubt the fact, which already clearly results from the comparison of different races, namely, that the development of the intellectual faculties of man is, to a great extent, independent of the capacity of the cranium and the volume of the brain.
I must here confine myself to the statement that the diminution of the cranium is, in North America, one of the characters of the Creole Negro race, derived from the African Negro race.
The intercrossing of races is again demonstrated in this table by the means. The Hindoos and ancient Egyptians are separated from the other White races of the Negroes, Chinese, Polynesians, and Red-Skins.