We must also mention amongst favorite ornaments beads made of jet and of very fine ochreous clay dried in the sun, of calcareous crystalline rock, and of grayish schist, and in other places of beads of amber or of hyaline quartz, the brightness of which attracted the attention. At the station of Menieux (Charente) with flints of a type to which it is usual to give the names of Moustérien or Solutréen, excavations have yielded numerous carefully polished balls of calx, varying in diameter from one to two inches. If there had been any doubts as to their use, those doubts would have been removed by the discovery at Laugerie-Basse of a fragment of the shoulder-blade of a reindeer on which was engraved the figure of a woman wearing round her neck a necklace of clumsy round balls. Other yet stranger ornaments have been found, for which what we have said about the cannibalism of early man should have prepared the reader. Our ancestors of the Stone age adorned themselves with necklaces of human teeth, and two skeletons have been dug out wearing round their necks this token of their victories. M. de Baye possesses in his collection some round pieces of skull pierced with holes (Fig. 28), and at the meeting of the American Association in 1886, at Ann Arbor (Michigan) were presented some ornaments made of human bones from a mound in Ohio. In taking from the gangue in which it was imbedded a skull from the megalithic monument of Vauréal, Pruner Bey noticed a fragment of a human shoulder blade pierced with an incision in which was fixed a little rounded piece of bone. This style of ornament seems to have remained in use for many centuries, for M. Nicaise has lately discovered at Moulin d’Oyes (Marne) a necklace made of calx balls, shells, and pendants cut out of the scales of unio shells. On this necklace hung a round piece of human cranium, and in the Gallic cemetery at Varille, the exterior lamina of a human lumbar vertebra was fastened to a necklace made of coral beads. [Illustration: 28.] Round pieces of skull pierced with holes (Al. de Baye’s collection).