Of the Engis skull Professor Huxley has remarked, "As Professor Schmerling observes, the base of the skull is destroyed, and the facial bones are entirely absent; but the roof of the cranium, consisting of the frontal, parietal, and the greater part of the occipital bones, as far as the middle of the occipital foramen, is entire, or nearly so. The left temporal bone is wanting. Of the right temporal, the parts in the immediate neighborhood of the auditory foramen, the mastoid process, and a considerable portion of the squamous element of the temporal, are well preserved." A piece of the occipital bone, which Schmerling seems to have missed, has since been fitted on to the rest of the cranium by Dr. Spring, the accomplished anatomist of Liége. "The skull is that of an adult, if not middle-aged man. The extreme length of the skull is 7.7 inches. Its extreme breadth, which corresponds very nearly with the interval between the parietal protuberances, is not more than 5.4 inches. The proportion of the length to the breadth is therefore very nearly as 100 to 70. If a line be drawn from the point at which the brow curves in towards the root of the nose, and which is called the 'glabella' (_a_, Fig. 8), to the occipital protuberance (_d_), and the distance to the highest point of the arch of the skull be measured perpendicularly from this line, it will be found to be 4.75 inches. Viewed from above, the forehead presents an evenly rounded curve, and passes into the contour of the sides and back of the skull, which describes a tolerably regular elliptical curve. [Illustration: FIG. 7. PROFESSOR T. H. HUXLEY.] [Illustration: FIG. 8. SIDE VIEW OF THE HUMAN SKULL FOUND IN THE CAVE OF ENGIS. _a._ Superciliary ridge and glabella. _b._ Coronal suture. _d._ The occipital protuberance.]