"There is however no doubt that the various races when carefully compared and measured differ much from each other as in the texture of the hair, the relative proportions of all parts of the body, the capacity of the lungs the form, and capacity of the skull, and even in the convolutions of the brain. But it would be an endless task to specify the numerous points of difference. The races differ also in constitution in acclimatisation and in liability to certain diseases. Their mental characteristics are likewise very distinct chiefly as it would appear in their emotional but partly in their intellectual faculties. Every one who has had the opportunity of comparison must have been struck with the contrast between the taciturn, even morose, aborigines of S. America and the light-hearted talkative negroes."
And to think, some fundamentalists want to ban discussion of Darwinian evolution.