de ce frontal que l'on peut étudier, nous montre les arcades sourcilières saillantes en bourrelet épais, une glabelle pro-éminente surmontée d'un front fuyant, qu'en sépare une partie fortement déprimée."
Lyell informs us that, at a meeting of the Scientific Congress of France, held at Le Puy in 1856, the question of the age of the Denise fossil bones was fully discussed, and the conclusion come to was that they "had been enveloped by natural causes in the tufaceous matrix in which we now see them." (Loc. cit., p. 195.)
Arcy-sur-Cure Jaw.
In the Grotte des Fées at Arcy-sur-Cure (Yonne), during the year 1859, the Marquis de Vibraye found portion of a human mandible which presented anatomical characters intermediary between those of the "Naulette machoire" and modern jaws. The circumstances were as follows :—
The contents of the cave were divided into three formations. The first, or uppermost, belonged to the Neolithic period, and contained several polished stone axes and fragments of Gallo-Roman pottery. The second consisted of red alluvium, in which were embedded flint knives, scrapers, borers, and objects made of bone, together with many broken bones of reindeer and horse all of which disclosed Magdalénien culture. The third, or lowest formation, was composed of granitic materials like the "diluvium gris" of Paris. In it were numerous bones of the mammoth, woolly-haired rhinoceros, cave-bear, cave-hyæna, reindeer, and numerous species of bovidae. It was on the surface of this deposit that the human jaw and a tooth belonging to a different individual were found. De Vibraye states that the jaw was placed between a complete skull of a cave-bear and fragments of the jaw of a hyæna. In Broca's diagram of the development of the chin (Fig. 4), the Arcy jaw is figured as No. 4, showing a greater approach to the perpendicular line than the Naulette jaw.
Neanderthal Skull.
In 1857 Professor Schaaffhausen and Dr Fuhlrott published an account of a skeleton found in the cave of Feldhofen, situated at the entrance to a small ravine called Neanderthal, on the
