The remaining surfaces introduce us to man as a cave-dweller. On the oldest of them are found not only abundance of _débris_ of food, but worked flints and bones, objects of ornament, and evidences of the use of fire. The two higher layers show works of art in more varied and improved forms, as if a certain progress in the arts of life had taken place during the occupancy of the cave. Among the objects in the upper layers were red oxide of iron, showing the use of colouring matter for the skin or garments, bone needles, proving the manufacture of clothing by sewing, bone points for darts, skilfully-barbed bone harpoons, ornaments made of perforated teeth of animals, and fragments of bone, and a remarkable necklace of a hundred and twenty-four silicified shells of the genus _Turritella_, looking like spirals of agate, with a pendant made of another and larger shell. These shells are not known to occur nearer to the cave than Rheims, in Champagne. It is scarcely too much to say that this necklace might be worn by any lady of the present day. A certain amount of imitative art is also shown in the carving of animal and plant forms and fancy devices on pieces of reindeer antler, which may have served for handles of weapons or implements. But objects of much more elaborate design have been found in caverns of this age in France. (See illustrations on pp. 59 and 68.) [Illustration: LANCE-HEAD FORMED OF A FLINT FLAKE (CAVE OF MOUSTIER) Similar to weapons found in the Goyet cave. The flat face shows a bulb of percussion (after Falsan)] The food of these people, in so far as it was of an animal nature, may be learned from the broken bones, which show that here as elsewhere they carried into their caves only the legs and skulls of the larger animals they killed, leaving the carcases; though it is quite possible that, like North American hunting Indians, they may have stripped off portions of flesh from the back, and preserved the heart, liver, &c., which would of course leave no remains.