In the Placard Cave eight different deposits bear witness to the presence of man; and these are separated by others bare of traces of human occupation. The lowest deposit, which is some twenty-five feet below the present level of the soil, contains worked flints of the Moustérien type, above which, but separated by an accumulation of _débris_ which has fallen from the roof, comes a layer in which was found a number of arrow-heads of the shape of laurel leaves. The fauna of both these levels includes the reindeer, the horse, and the aurochs. As we go up we find, above another layer of _débris_, the Solutréen type of tools and weapons represented by bone implements and numerous arrow-heads, this time stalked and notched. The four following levels correspond with those belonging to what is known as the Madeleine type, and the arrow-heads are decorated with geometrical designs. The traces of human occupation at different times, doubtless separated by long intervals, are therefore very clearly defined. The Fontabert Cave, in Dauphiné, contained, at a depth of about six feet, traces of fire and roughly worked flints, and about three feet below the surface lay the skeleton of a man, who had perhaps been overtaken by a fall of earth, still holding in his hand a polished dipper of fine workmanship. Yet a third and evidently more recent period is characterized by a jade crescent. We might easily multiply instances of a similar kind, but that we wish to avoid so much repetition. We soon begin to find evidence of the progress made by man, and though in Neolithic times he still continued to occupy caves he learned to adapt them better to his needs. The rock shelters of the Petit-Morin valley, so well explored by M. de Baye, are the best examples we can give.