M. Sévoz, an engineer of mines long resident in Japan, studied iron-working in the province of Ykouno.[402] He found the people using an imperfect Catalan method, but able to treat at once sixteen thousand kilogrammes of ore, and to produce blooms weighing one thousand three hundred kilogrammes. These huge rods were broken up under a hammer constructed in the style of a pile-driving ram, to which motion was given by a walking-wheel 11·5 mètres in diameter, mounted by men. The description does not promise much; but Japan, though holding to her ancient methods in districts unknown to Europeans, produces iron cheaper than the English. Of her marvellous Swords I shall treat in Part II. The people of Madagascar worked iron,[403] but their name of the metal is Malayan; hence Mr. Crawford traced the art back to Malacca. Yet the Malay did not extend it far eastwards: according to Mr. E. B. Tylor,[404] ‘In New Zealand, where there is good iron-ore, there was no knowledge of iron previously to the arrival of Europeans.’ Passing over to the American continent, we find an immense industry of copper, but so little iron that, till late years, the indigenes were supposed not to have worked it. Ynka mines, however, have been discovered near Lake Titicaca; while excavations in the tumuli of the mysterious ‘Mound-builders,’ who may have attempted to reproduce the Egyptian Pyramid, yielded axes described to be of ‘hæmatite iron-ore,’ one of the easiest metals to smelt, and for that reason probably one of the first worked. Mr. Day, who figures one of these tool-weapons with the hammer-marks (p. 218), supposes it to have been ‘metallic iron,’ pronouncing hæmatite ‘extremely brittle and absolutely unforgeable.’[405] He quotes Mr. Charles C. Abbott,[406] who procured other specimens of aboriginal manufacture from the mounds. One hatchet was four and a half inches long by two broad, and nearly uniform in thickness, three-sixteenths of an inch; it had a well-defined edge, which from its slightly wavy outline and varied breadth, appeared to be hammered, not ground. According to Major Hotchkiss, who owned two other similar specimens, a series of four was found under an uprooted tree on an Indian trail in West Virginia. Fragments of unworked hæmatite, small and irregular, were used instead of flint for arrow-heads.[407] Mr. Abbott also notices ‘a curious form of “relic,” known as a “plummet,” occasionally occurring and made of iron ore: one specimen[408] “is made of iron ore ground down until it is almost as smooth as glass.” As such “plummets” are found in the Western Mounds, as well as on the surface of the ground throughout the Atlantic coast States, and are always polished, it seems fair to presume that a cutting instrument of such hard material would undoubtedly be polished and ground, if at the time of its manufacture grinding was known or practised among the aborigines in fashioning their various weapons and instruments.’ [Heading: _IRON IN AFRICA._]