“A portion of the Moorish population of Africa is very mixed race of Arabs, Berbers, Negroes, &c (Page. 6)”
“The observations of Molina and Humboldt are sometimes quoted in disproof of this pervading uniformity of physical characters. Molina says that the difference between an inhabitant of Chili and Peruvian is not less than between an Italian and German; to which Humboldt adds, that the American race contains nations whose features differ as essentially from one another as those of the Circassians, Moors and Persians. But all these people are of one and the same race, and readily recognized as such, not withstanding their differences of feature and complexion;* and the American nations present precisely parallel case.” (Page. 6)
“No stronger example need be adduced than that which presents itself in the great Arabian family; for the Saracens who established their kingdom in Spain, whose history is replete with romance and refinement, whose colleges were the centres of genius and learning for several centuries, and whose arts and sciences have been blended with those of every subsequent age;—these very Saracens belong not only to the same race but to the same family with the Bedouins of the desert; those intractable barbarians who scorn all restraints which are not imposed by their own chief, and whose immemorial laws forbid them to sow corn, to plant fruit-trees, or to build houses, in order that nothing may conflict with those roving and predatory habits which have continued unaltered through period of three thousand years.” (Page. 15)
“The Egyptian form differs from the Pelasgic in having narrower and more receding forehead, while the face being more prominent, the facial angle is consequently less. The nose is straight or aquiline, the face angular, the features often sharp, and the hair uniformly long, soft, and curling. In this series of crania include many of which the conformation is not appreciably different from that of the Arab and Hindoo; but have not, as rule, attempted to note these distinctions, although they are so marked as to have induced me, in the early stage of the investigation, and for reasons which will appear in the sequel, to group them, together with the proper Egyptian form, under the provisional name of Austral Egyptian crania.” (Page. 46)
“The true Negro conformation requires no comment; but it is necessary to observe that practised eye readily detects few heads with decidedly mixed characters, in which those of the Negro predominate. For these propose the name of Negroid crania for while the osteological development is more or less that of the Negro, the hair is long but sometimes harsh, thus indicating that combination of features which is familiar in the mulatto grades of the present day. It is proper, however, to remark in relation to the whole ‘series of crania, that while the greater part is readily referable to some one of the above subdivisions, there remain few other examples in which the Caucasian traits predominate, but are partially blended with those of the Negro, which last modify both the structure and expression of the head and face.” (Page.46)
Source: An Inquiry into the distinctive characteristics of the Aboriginal Race of America