QUERY XIV.

of them, as uni- formly as is the preference of the Ora- nootan for the black women over thofe of his own fpecies. The circumftance of fuperior beauty, is thought worthy attention in the propagation of our horfes, dogs, and other domeftic animals ; why not in that of man? Befides thofe of colour, figure, and hair, there are other phyfical diftinctions proving a difference of race. They have lefs hair on the face and body. They fecrete lefs by the kid- nies, and more by the glands of the fkin, which gives them a very ftrong and difa- greeable odour. This greater degree of tranfpiration renders them more tolerant of heat, and lefs fo of cold than the whites. Perhaps too a difference of flruc- [ ^71 ] ture in the pulmonary apparatus, which a late ingenious* experimentalifl: has dif- covered to be the principal regulator of animal heat, may have difabled them from extricating, in the a6l of infpiration, fo much of that fluid from the outer air, or obliged them in expiration, to part with more of it. They feem to require lefs fleep. A black after hard labour through the day, will be induced by the flighted amufements to fit up till midnight, or later, though knowing he mufl: be out with the firfl: dawn of the morning. They are at leaft as brave, and more adventurefome.