On the other hand, in favor of the theory of local or autochthonous evolution of this culture is the direct succession described below of Aurignacian prototypes and early Aurignacian implements above the older Mousterian layers in the various stations of Dordogne. In fact, the relation of the Aurignacian industry to the preceding Mousterian is one of the most important in the history of Palæolithic archæology, because of the change of race which occurred at this time. How far is it derivative and autochthonous, how far is it new and influenced by invasion and the handicraft of a new and superior race? _Art._ Microlithique, microlith. Burin, graver (first appearance). _Industrial._ Coup de poing, hand-stone (rare and degenerate). Pointe, point. [AN]Chatelperron (curved). double-pointed. Racloir, scraper. convex. concave. straight. double-edged. triple-edged. Grattoir, planing tool. Perçoir, drill, borer. Couteau, knife, blade. Enclume, anvil stone. Percuteur, hammer-stone. _War and Chase._ Pointe, point. Pierre de jet, throwing stone. Couteau, knife, blade. Pointe de lance, bone lance-heads. First, as for transition from the older culture, it is important to note throughout that the 'Aurignacian retouch' is identical with the Mousterian; this retouch is on one side of the flake only and gives it a short, abrupt, and blunt edge. As we shall see, it is essentially different from that discovered by the Solutrean flint workers and employed in Solutrean times, a superior technique which produced a sharp, thin edge, many of the implements being dressed on both sides. On the other hand, Breuil concludes that the early Aurignacian industry can only in part be derived from the late Mousterian and that it is partly due to the invasion of a race which ranks much higher in the scale of intelligence than the Neanderthal. [Illustration: FIG. 149. Implements designed for engraving and sculpture. Evolution of the angulate graving-tool or _burin_, from the early Aurignacian of Chatelperron (left), to the late Solutrean of Placard (right). After Breuil. About one-third actual size. These small implements, chiefly made from elongated flakes and distinguished by a sharp angulate edge at one end suitable for graving on bone or stone, are especially characteristic of the Aurignacian stage of culture, in which they first appear. 1, 2. Chatelperron points. 6. Prototype of the Magdalenian 'parrot-beak.' Some of these _burins_, such as 7, are made into _grattoirs_ or planing tools at the other end.]