The following measurements of brain weights collected by Sanford B. Hunt, in the Federal army during the late war in the United States, demonstrates that the White blood is the lever which elevates; and the Negro blood the lever that lowers the mental grade of individuals, tribes, nations, continents, and the world at large.
Weight of brain in Grammes:
24 Whites…………………………………………1424
25 Three parts white……………………………..1390
47 Half-white, or mulattoes……………………..1334
51 One-quarter white…………………………….1319
95 One-eighth white………………………………1308
22 Sixteenth white………………………………..1280
141 Pure Negroes………………………………….1331
(Topinard's Anthropology, p. 312)
These estimates are accepted by the scientific world, and are quoted by Topinard, Quatrefages, Winchell, and others. Though these measurements are fair to the Negro, and to the classes of mixed bloods to which they refer, they are obviously unfair to the pure Whites, for the following reasons: (1) they were evidently taken from the common soldiers of the Federal army; the higher grades of army officers and the more intelligent classes in the various peaceful vocations in the United States were not represented. Had they been, the average brain weight of the Whites would have been raised to the average of the Noachites -1500 grammes. (2) More or less of the soldiers whom Dr. Hunt recognized as pure whites may have had some admixture of negro blood; and this, as shown by his table, would have reduced the brain weight of such individuals; and would of course, reduced the average to this extent.