The ingenious skill of the palæolithic artists and tool-makers, who wrought in their rock-shelters and limestone caves, in that remote era when the climate along the northern slope of the Pyrenees resembled that of Labrador at the present day, has naturally awakened a lively interest. The rigour of the climate during a greatly prolonged winter prevented their obtaining stone or flint for purposes of manufacture. They wrought, accordingly, in bone, in mammoth ivory, and in the horn of the reindeer, fashioning from such materials their lances, fish-spears, knives, daggers, and bodkins; turning to account the deer’s tynes for tallies; and carving out of the larger bones what are assumed to have been maces or official batons, elaborately ornamented with symbolic devices designed for other purposes than mere decoration. The Eskimo are recognised as presenting the nearest type to the cave-men of Europe’s Post-Glacial era. It is even possible that, like the natives of Labrador, the latter may have occupied winter snow-huts, and only resorted to their cave-shelters during the brief heat of a semi-arctic summer. This, however, is rendered doubtful by the occurrence of reindeer horns and bones of young fawns, along with others of such varying age as to indicate the presence of the hunter during nearly every season of the year. Among a people so situated the industrial arts are called into constant requisition, alike for clothing and tools; and the experience of the hunter directs him to the products of the chase for the easiest supply of both. The pointed horn of the deer furnished the ready-made dagger, lance head, and harpoon; the incisor tooth of the larger rodents supplied a more delicately edged chisel than primitive art could devise; and the very process of fracturing the bones of the larger mammalia, in order to obtain the prized marrow, produced the splinters and pointed fragments which an easy manipulation converted into daggers, bodkins, and needles. The ivory of walrus, narwhal, or elephant is readily wrought into many desirable forms, and is less liable to fracture than flint or stone; and all those materials are abundant in the most rigorous winters, when the latter are sealed up under the frozen soil. Implements of horn or bone may therefore be assumed to have preceded all but the rudest flint celts and hammer-stones or unwrought missiles; and although, owing to the nearly indestructible nature of their material, it is from the latter that our ideas of primeval tool-making are chiefly derived, enough has been recovered from contemporary cave deposits to confirm the analogy of their arts to those of the hyperborean workmen of the North American continent.