It will probably be asked, Why not retain and incorporate the blacks into the state, and thus save the expense of supplying by importation of white settlers the vacancies they will leave? Deep-rooted prejudices entertained by the whites; ten thousand recollections, by the blacks, of the injuries they have sustained; new provocations; the real distinctions which nature has made; and many other circumstances will divide us into parties, and produce convulsions which will probably never end but in the extermination of the one or the other race. To these objections, which are political, may be added others, which are physical and moral. [Footnote 35: From Query No. 14 of the "Notes on the State of Virginia," which, says Jefferson in an "advertisement," "were written in Virginia in the year 1781 and somewhat corrected and enlarged in the winter of 1782, in answer to queries proposed to the author by a foreigner of distinction then residing among us."] The first difference which strikes us is that of color. Whether the black of the negro resides in the reticular membrane between the skin and the scarf-skin, or in the scarf-skin itself; whether it proceeds from the color of the blood, the color of the bile, or from that of some other secretion, the difference is fixt in nature, and is as real as if its seat and cause were better known to us. And is this difference of no importance? Is it not the foundation of a greater or less share of beauty in the two races? Are not the fine mixtures of red and white, the expressions of every passion by greater or less suffusions of color in the one, preferable to that eternal monotony which reigns in the countenances, that immovable veil of black which covers all the emotions of the other race? Add to these flowing hair, a more elegant symmetry of form, their own judgment in favor of the whites, declared by their preference of them, as uniformly as is the preference of the orangutan for the black women over those of his own species. The circumstance of superior beauty is thought worthy attention in the propagation of our horses, dogs, and other domestic animals; why not in that of man? Besides those of color, figure, and hair, there are other physical distinctions proving a difference of race. They have less hair on the face and body. They secrete less by the kidneys, and more by the glands of the skin, which gives them a very strong and disagreeable odor. This great degree of transpiration renders them more tolerant of heat, and less so of cold than the whites.