In spite of the incontestable authority of the savants whom I have just named, their opinion has, I believe, gained but very few partisans, and has been hotly contested. It is indeed possible, and even probable, that a certain number of stations were abandoned during the period in question, and that the inhabitants moved northwards to seek those conditions of climate and facilities for the chase to which they had been accustomed. But other tribes remained where they were, yielding to the new necessities, adopting the arms and customs of the immigrating populations, and becoming amalgamated with them. I cannot here enter into the geological, zoological and archæological considerations by which this view is justified. I shall confine myself to mentioning some facts which belong especially to anthropology. MM. Louis Lartet and Chapelain Duparc discovered near Sorde, in the department of the Basses-Pyrénées, a shelter in the lower bed of which, after methodical excavations, a human skull and bones were found, together with a necklace of the teeth of the lion and bear. Immediately above, and mixed with the latter, was a thick layer of charcoal from which the explorers obtained barbed arrows of the Magdalénean type, and numerous instruments and implements of the same age. Bones of the horse and ox were mixed with these products of human industry. The reindeer was not wanting among this cooking _débris_, but this species _was more rare_ than the others. Lastly, above the charcoal, and partly confounded with its upper portion, they discovered a layer which was, so to speak, composed of human bones. The learned explorers here obtained several cut flints similar to the preceding, but they also found a narrow, thin blade, as well as a triangular dagger, which, from its form and the nature of the work, is closely connected with the finest productions of the art of polished stone. The upper burial-place contained the remains of more than thirty individuals. These bones have been taken to the museum, and M. Hamy has not hesitated in referring them to the Cro-Magnon race. I had only to confirm this opinion, as there could be no possible ground for doubt. Upon the bones of the limbs as well as upon the skulls, all those characters were observed which have become classic since the great works of MM. Broca and Pruner Bey. Thus, in this curious grotto at Sorde, we find the superposition of two _archæological types_, the _cut_ stone (Palæolithic), and the _polished_ stone (Neolithic); but there is only one human race, that of Cro-Magnon. Is it not evident that this race must have known both the latest times of the reindeer age, and the earliest of the present epoch?