There is something very strange in this fact, of which, however, M. Dupont seems to have given what is, at least, a very plausible explanation. He holds that two populations, perhaps two races, were placed in juxtaposition in the countries in question during the quaternary period. There must have existed between them one of those many instances of, we may say, instinctive hatred similar to that which prevails between the Red-Skins and the Esquimaux. Encircled on the north and the east by their enemies, who occupied Hainault, the aborigines of the Lesse could only extend towards the south, and, through the Ardennes, communicate with the basins of the Seine and the Loire. But did they themselves undertake the long and difficult journeys, by which alone they could procure the shells which they used for ornaments, and the immense quantity of flint which they worked in their caverns? We do not hesitate to assert with M. Dupont that nothing is less probable. Everything, on the contrary, proves that they obtained their supplies by means of a veritable commerce, organised in a regular manner and upon a large scale; whether by the existence of populations devoted to this form of industry, of which there are several examples known to us in the present day; or by the shells and flints passing from hand to hand through successive exchanges, and reaching at length the banks of the Lesse. We cannot explain in any other way the abundance of foreign flints at Chaleux, Furfooz, etc., the prodigality with which they were used, and the evident carelessness displayed in the preservation of tools which had been manufactured from them. VIII. In direct opposition to the men of Cro-Magnon, those of Furfooz appear to have been eminently pacific. M. Dupont has not discovered either in their grottoes or burial-places any warlike arms, and he applies to them Ross’s remarks upon the Esquimaux of Baffin’s Bay, who did not understand what was meant by war. In the sepulchral grotto of Le Frontal, where the tribe of Les Nutons buried their dead, a number of objects have been found, as at Cro-Magnon, proving the existence of a belief in another life. They consisted of a number of perforated shells, ornaments in spar, flat pieces of sandstone traced with sketches, the vase which we have mentioned above, and some selected flint implements. All these objects are, moreover, of the same nature as those in the Trou des Nutons. It is clear that they had been laid in the sepulchral vault under the impression that they would serve to supply the wants of the deceased in the new existence which was opening before them.