Whilst the cave-men of the south of France seem not to have utilized any but fresh-water fish, the Scandinavians, at a date probably less remote however, did not hesitate to brave the ocean. The kitchen-middings contain numerous remains of fish, amongst which those of the mackerel, the dab, and the herring are the most numerous. There, too, we meet with relics of the cod, which never approaches the coast, and must always be sought by the fisherman in the open sea. Although we are in a position to assert that men were able to catch fish during every prehistoric period, if not in every locality, we can speak less positively of their mode of doing so. The earliest fishing-tackle was doubtless of the most primitive description: the bone of some animal, a fragment of hard wood, or even a fish-bone pointed at each end and pierced with a hole, served their purpose (Fig. 10). The Exhibition of Fishing-Tackle held at Berlin in 1880 contained several such implements, some of wood, others of bone. Others have also been found in the Madeleine Cave, and in different stations of the ancient inhabitants of Switzerland. It is interesting to note their resemblance to those still in use amongst the Esquimaux. [Illustration: 10.] 1. Fragments of arrows made of reindeer horn from the Martinet Cave (Lot-et-Garonne).—2. Point of spear or harpoon in stag-horn (one third natural size).—3. and 4. Bone weapons from Denmark.—5. Harpoon of stag-horn from St. Aubin.—6. Bone fish-hook; pointed at each end, from Wangen. Prehistoric mail also turned to account the teeth of animals. We may quote in this connection the molars of a bear from which the enamel and the crown have been removed, and the thickness of which has been lessened by rubbing (Fig. 11). The small flints picked up in great numbers in the department of the Gironde also date from a remote antiquity; they are sixteen millimetres long by four wide, and though we cannot assert it as a fact, they are supposed to have been used for catching fish. [Illustration: 11.] Bears’ teeth converted into fish-hooks. [Illustration: 12.] Fish-hook made out of a boar’s tusk.