Material proofs of the presence of animals are not wanting. The accumulation of coprolites in the cave of Sentenheim (Alsace) bears witness to the number of bears which once haunted it. Nordmann took from a cave near Odessa 4,500 bones of ursidæ, associated with no less numerous relics of the large cave-lion and cave-hyena.17 The Külock Cave, now some six hundred and fifty feet above the river, contained the remains of no less than 2,500 bears, and similar relics occur by thousands in the osseous breccia of Santenay and in the cave of Lherm, where they form a regular ossuary. It would be easy to quote similar facts from Belgian, German, and Hungarian caves. In almost every case the position of the skeletons seems to show that the bears sought a last refuge in the caves, and that death had surprised them during their winter sleep. Pachyderms were no less numerous than bears. The remains of mammoths are found from the north of Europe to Greece and Spain, and we meet with them in Algeria, in Asia from the Altai Mountains to the Arctic Ocean, and in America in Mexico and Kentucky. They seem to have entrenched themselves especially in Siberia, whence tusks are still exported as an article of commerce. In the extreme North, those parts of Wrangel’s Land which have been explored are strewn with the bones of mastodons, and in some parts of Sonora and Columbia these remains form almost inexhaustible deposits. Animals of the cervine and equine groups were, if possible, yet more numerous. M. Piette estimates the number of reindeer whose bones he has picked up in the Gourdan Cave as over. 3,000, and the number of cervidæ found at Hohlefels is positively incalculable. In 1826, Marcel de Serres called attention to the great number of the bones of animals of the equine family found in the neighborhood of Lunel-Viel; at Solutré, the remains of horses cover a great portion of the slope which stretches from the eastern side of the mountain to the bottom of the valley. Here are found those vast accumulations to which the inhabitants of the valley give the characteristic name of _horse-walls_. The number of horses, the bones of which have gone to form these walls, may be estimated without exaggeration at 40,000. The bones are mixed together in the greatest confusion, many of them show traces of having been burnt, and the flesh of the horse was evidently the favorite diet of the people of Solutré.18 At first man obtained by force, often aided by strategy, the animals he coveted. He bad not yet learnt to tame them and reduce them to servitude. Neither the reindeer nor the horse was as yet domesticated, and neither in the caves nor in the various deposits elsewhere has a complete skeleton been found, but only—a very significant fact—the bones on which had been the greater amount of flesh. The absence of any remains of the dog, so indispensable an animal in the keeping of flocks, is yet another proof that domestication was still unpractised.