270 S. HAZZLEDINE WARREN, glaciation here, with a final minor recrudescence of cold (after intervening milder conditions) in the Magdalenian. Many continental archaeologists place, not merely a glaciation, but the maximum phase of the whole glacial period, in the Mousterian. Let us take as examples, an older book, that of G. and A. de Mortillet (Le Prehistorique Origine et Antiquite de I'Homme, editions of 1883, 1885 and 1900), and the new and admirable summary of Peyrony (Elements de Prehistoire, 1923). Both these books express the view indicated above. But both these books also prove incontestably from a review of the evidences of the fauna and flora, that at least a great part of the Mousterian period was milder rather than colder, though more humid, than the climate of to-day. In the succeeding stages the cold became more and more rigorous until it culminated in the tundra conditions of the Magdalenian. I cannot call to mind any writer who docs not appeal to the cold fauna and flora of the Mousterian (admittedly colder than the Chellian) as the main basis of evidence for correlation with a glacial episode, whereas this is the respect in which the Mousterian must give place to the Magdalenian. If we take the reindeer as an illustration, this makes its first appearance in south-central France in the Mousterian, subse- quently increases in abundance, and becomes dominant in the Magdalenian. At Mentone, the Elephas antiquus fauna con- tinued into the Mousterian, and was not driven out and replaced by the reindeer fauna until later. Likewise, in Northern Spain, the warm fauna continued to hold the field into the Lower Aurig- nacian, after which the reindeer and mammoth began to make their appearance (5). Many of the Mousterian sites are outside the glaciated area, but by no means all of them. The Taubach deposit overlies the local glacial deposits (referred to the Rissian), and the flint in- dustry here is either Mousterian or a little earlier. The fauna is the southern Elephas antiquus fauna which had therefore re- established itself as far north as Saxe-Weimar after the ice of an important glacial episode had passed away. That is a notable item of evidence. Burkitt is a staunch supporter of what I have called the " orthodox " view. He rightly emphasises the first importance of Stratigraphical evidence, and in this respect he relies upon the cave of Cotencher (6) to support his case. I am not acquainted with the site at first hand, but from the published accounts I cannot see that the correlation of the Mousterian with the Wurmian could be inferred if it were not assumed as true in advance.