If the opinion I wish to combat were not supported by authors of acknowledged talent, it might, perhaps, be superfluous to demonstrate that there exists in the human species _eugenesic hybrids_. Most of the readers of these pages must reconcile themselves to this qualification, for assuredly men of a pure race are very rare in the country they inhabit. Nothing is, in fact, more clear than that many modern nations, to commence with the French, have been formed by the intermixture of two or more races. My excellent teacher, Gerdy,[16] has devoted a long chapter, in his Physiology, to this subject, and has, after great research, arrived at the conclusion that all, or nearly all, actual races have been crossed more than once, and that the primitive types of mankind, altered and modified by so many crossings, are no longer represented upon the earth. There is here much exaggeration: for there are races who, by a peculiar geographical situation, and the prejudices of caste or religion, have remained in a state of purity; and on the other hand, as M. P. Bérard[17] remarks, it is not sufficient for the production of a mongrel race, that two groups of different races should become allied and fused. If in either of the groups there exists too great a numerical inequality, the mongrels resume, after the lapse of a few generations, nearly all the traits of the more numerous race, and are fused in it. It is for this reason that, despite of numerous crossings, many races have preserved all their characters from remote antiquity. I have already had occasion to observe that the _Fellahs_ of present Egypt are exactly like the figures represented upon the Pharaonic epoch.[18] No country has, however, been so frequently conquered as Egypt, which from Cambyses to Mehemet-Ali, for more than twenty-three centuries has been governed and oppressed by peoples of foreign races, Persians, Greeks, Romans, Arabs, Turks, and Mamelukes. The Macedonian colonies, founded by Alexander and his successors, soon lost their ethnological character.[19] Southern Italy has not preserved the impress of the Norman race. It would be vain to search in Asia Minor for the descendants of the Gauls with fair hair,[20] who once established themselves in Galatia; and though the Visigoths possessed Spain for more than two centuries, and have never been expelled from it, and we may without exaggeration compute the number of the conquerors at several hundred thousand, and though their blood, mitigated by intermixture, runs to this day in the veins of an immense number of Spaniards, the latter have preserved no trace of their Germanic origin.