In Europe, North Italy, Hungary and Ireland[76] may lay claim to a Copper Age, but there is very little evidence of such a stage in Britain. To this period also may be attributed the nest or _cache_ of pure copper ingots found at Tourc'h, west of the Aven Valley, Finisterre, described by M. de Villiers du Terrage, and comprising 23 pieces, with a total weight of nearly 50 lbs.[77] These objects, which belong to "the transitional period when copper was used at first concurrently with polished stone, and then disappeared as bronze came into more general use[78]," came probably from Hungary, at that time apparently the chief source of this metal for most parts of Europe. Of over 200 copper objects described by Mathaeus Much[79] nearly all were of Hungarian or South German _provenance_, five only being accredited to Britain and eight to France. The study of this subject has been greatly advanced by J. Hampel, who holds on solid grounds that in some regions, especially Hungary, copper played a dominant part for many centuries, and is undoubtedly the characteristic metal of a distinct culture. His conclusions are based on the study of about 500 copper objects found in Hungary and preserved in the Buda Pesth collections. Reviewing all the facts attesting a Copper Age in Central Europe, Egypt, Italy, Cyprus, Troy, Scandinavia, North Asia, and other lands, he concludes that a Copper Age may have sprung up independently wherever the ore was found, as in the Ural and Altai Mountains, Italy, Spain, Britain, Cyprus, Sinai; such culture being generally indigenous, and giving evidence of more or less characteristic local features[80]. In fact we know for certain that such an independent Copper Age was developed not only in the region of the Great Lakes of North America, but also amongst the Bantu peoples of Katanga and other parts of Central Africa. Copper is not an alloy like bronze, but a soft, easily-worked metal occurring in large quantities and in a tolerably pure state near the surface in many parts of the world. The wonder is, not that it should have been found and worked at a somewhat remote epoch in several different centres, but that its use should have been so soon superseded in so many places by the bronze alloys. From copper to bronze, however, the passage was slow and progressive, the proper proportion of tin, which was probably preceded in some places by an alloy of antimony, having been apparently arrived at by repeated experiments often carried out with no little skill by those prehistoric metallurgists.