5.
Fig. 5 (fig. 57).—Skull from Turkestan of bestial aspect in which is inscribed, by means of a dotted line, the cranial cap of Trinil.—IF, Inio-orbital line common to the two skulls.—T, Curved temporal line of the skull of Turkestan. This skull is extremely remarkable for the extent of the surface of insertion of the temporal muscle. It presents the crest pt of figure 4 (56). The sincipital region is mutilated by a sabre stroke.
6.
Fig. 6 (fig. 58).—Skull of a young chimpanzee.
The maximum error possible for the separate points of the skull has been limited by correlations so diverse and rigorous that the errors which could have been committed cannot modify them, notably the general form of the skull, properly speaking,, and its orientation. The figure thus obtained seems to me to make it evident that, it is impossible,
