[Illustration: Fig. 104.--Necklace and various Ornaments of Amber.] Although these northern tribes of the polished-stone epoch were such skilful workmen in flint, they were, nevertheless, but poor hands at pottery. The _débris_ of vessels collected from the Danish _kitchen-middens_, and also from the peat-bogs and tombs, are in every way rough, and testify to a very imperfect knowledge of the art of moulding clay. They may be said to mark the first efforts of a manufacturing art which is just springing into existence, which is seeking for the right path, although not, as yet, able to find it. The art of pottery (if certain relics be relied on) was more advanced at a more ancient period, that is, during the reindeer epoch. We have already stated that during the reindeer epoch there existed certain manufactories of weapons and tools, the productions of which were distributed all round the adjacent districts, although over a somewhat restricted circle. In the epoch at which we have now arrived, certain _workshops_--for really this is the proper name to give them--acquired a remarkable importance, and their relations became of a much more extensive character. In several of the Belgian caves, flints have been found which must have come from the celebrated workshop of Grand-Pressigny, situated in that part of the present France which forms the department of Indre-et-Loire, and, from their very peculiar character, are easily recognisable. Commerce and manufacture had then emerged from their merely rudimentary state, and were entering into a period of activity implying a certain amount of civilisation. The great principle of division of labour had already been put into practice, for there were special workshops both for the shaping and polishing of flints. The most important of all the workshops which have been noticed in France is, unquestionably, that of Grand-Pressigny, which we have already mentioned. It was discovered by Dr. Léveillé, the medical man of the place; but, to tell the truth, it is not so much in itself a centre of manufacture as a series of workshops distributed in the whole neighbourhood round Pressigny. At the time of this discovery, that is in 1864, flints were found in thousands imbedded in the vegetable mould on the surface of the soil, over a superficies of 12 to 14 acres. The Abbé Chevalier, giving an account of this curious discovery to the _Académie des Sciences_ at Paris, wrote: "It is impossible to walk a single step without treading on some of these objects." The workshops of Grand-Pressigny furnish us with a considerable variety of instruments. We find hatchets in all stages of manufacture, from the roughest attempt up to a perfectly polished weapon. We find, also, long flakes or flint-knives cleft off with a single blow with astonishing skill.