hatchet would occupy the labour of a month, and to clear a small patch of ground for purposes of culture would require the combined efforts of a tribe. For the same reason, dwellings could not be erected; and without dwellings domestic tranquillity, security, culture, and refinement, especially in a rude climate, were all but impossible. Mr. Emerson well observes, that "the effect of a house is immense on human tranquillity, power, and refinement. A man in a cave or a camp—a nomad—dies with no more estate than the wolf or the horse leaves. But so simple a labour as a house being achieved, his chief enemies are kept at bay. He is safe from the teeth of wild animals, from frost, sunstroke, and weather; and fine faculties begin to yield their fine harvest. Inventions and arts are born, manners, and social beauty and delight." But to build a house which should serve for shelter, for safety, and for comfort—in a word, as a home for the family, which is the nucleus of society—better tools than those of stone were absolutely indispensable.

Hence most of the early European tribes were nomadic: first hunters, wandering about from place to place like the American Indians, after the game; then shepherds, following the herds of animals which they had learnt to tame, from one grazing-ground to another, living upon their milk and flesh, and clothing themselves in their skins held together by leathern thongs. It was only when implements of metal had been invented that it was possible to practise the art of agriculture with any considerable success. Then tribes would cease from their wanderings, and begin to form settlements, homesteads, villages, and towns. An old Scandinavian legend thus curiously illustrates this last period:—There was a giantess whose daughter one day saw a husbandman ploughing in the field. She ran and picked him up with her finger and thumb, put him and his plough and oxen into her apron, and carried them to her mother, saying, "Mother, what sort of beetle is this that I have found wriggling in the sand?" But the mother said, "Put it away, my child; we must begone out of this land, for these people will dwell in it."

M. Worsaae of Copenhagen, who has been followed by other antiquaries, has even gone so far as to divide the natural history of civilization into three epochs, according to the character of the tools used in each. The first was the Stone period, in which the implements chiefly used were sticks, bones, stones, and flints. The next was the Bronze period, distinguished by the introduction and general use of a metal composed of copper and tin, requiring a comparatively low degree of temperature to smelt it, and render it capable of being fashioned into weapons, tools, and implements; to make which, however, indicated a great advance in experience, sagacity, and skill in the manipulation of metals. With tools of bronze, to which considerable hardness could be given, trees were felled, stones hewn, houses and ships built, and agriculture practised with comparative facility. Last of all came the Iron period, when the art of smelting and working that most difficult but widely diffused of the minerals was discovered; from which point the progress made in all the arts of life has been of the most remarkable character.

Although Mr. Wright rejects this classification as empirical, because the periods are not capable of being clearly defined, and all the three kinds of implements are found to have been in use at or about the same time,[2] there is, nevertheless, reason to believe that it is, on the whole, well founded. It is doubtless true that implements of stone continued in use long after those of bronze and iron had been invented, arising most probably from the dearness and scarcity of articles of metal; but when the art of smelting and working in iron and steel had sufficiently advanced, the use of stone, and afterwards of bronze tools and weapons, altogether ceased.

The views of M. Worsaae, and the other Continental antiquarians who follow his classification, have indeed received remarkable confirmation of late years, by the discoveries which have been made in the beds of most of the Swiss lakes.[3] It appears that a subsidence took place in the waters of the Lake of Zurich in the year 1854, laying bare considerable portions of its bed. The adjoining proprietors proceeded to enclose the new land, and began by erecting permanent dykes to prevent the return of the waters. While carrying on the works, several rows of stakes were exposed; and on digging down, the labourers turned up a number of pieces of charred wood, stones blackened by fire, utensils, bones, and other articles, showing that at some remote period, a number of human beings had lived over the spot, in dwellings supported by stakes driven into the bed of the lake.

The discovery having attracted attention, explorations were made at other places, and it was shortly found that there was scarcely a lake in Switzerland which did not yield similar evidence of the existence of an ancient Lacustrine or Lake-dwelling population. Numbers of their tools and implements were brought to light—stone axes and saws, flint arrowheads, bone needles, and such like—mixed with the bones of wild animals slain in the chase; pieces of old boats, portions of twisted branches, bark, and rough planking, of which their dwellings had been formed, the latter still bearing the marks of the rude tools by which they had been laboriously cut. In the most ancient, or lowest series of deposits, no traces of metal, either of bronze or iron, were discovered; and it is most probable that these lake-dwellers lived in as primitive a state as the South Sea islanders discovered by Captain Cook, and that the huts over the water in which they lived resembled those found in Papua and Borneo, and the islands of the Salomon group, to this day.

These aboriginal Swiss lake-dwellers seem to have been succeeded by a race of men using tools, implements, and ornaments of bronze. In some places the remains of this bronze period directly overlay those of the stone period, showing the latter to have been the most ancient; but in others, the village sites are altogether distinct. The articles with which the metal implements are intermixed, show that considerable progress had been made in the useful arts. The potter's wheel had been introduced. Agriculture had begun, and wild animals had given place to tame ones. The abundance of bronze also shows that commerce must have existed to a certain extent; for tin, which enters into its composition, is a comparatively rare metal, and must necessarily have been imported from other European countries.

The Swiss antiquarians are of opinion that the men of bronze suddenly invaded and extirpated the men of flint; and that at some still later period, another stronger and more skilful race, supposed to have been Celts from Gaul, came armed with iron weapons, to whom the men of bronze succumbed, or with whom, more probably, they gradually intermingled. When iron, or rather steel, came into use, its superiority in affording a cutting edge was so decisive that it seems to have supplanted bronze almost at once;[4] the latter metal continuing to be employed only for the purpose of making scabbards or sword-handles. Shortly after the commencement of the iron age, the lake-habitations were abandoned, the only settlement of this later epoch yet discovered being that at Tene, on Lake Neufchatel: and it is a remarkable circumstance, showing the great antiquity of the lake-dwellings, that they are not mentioned by any of the Roman historians.

That iron should have been one of the last of the metals to come into general use, is partly accounted for by the circumstance that iron, though one of the most generally diffused of minerals, never presents itself in a natural state, except in meteorites; and that to recognise its ores, and then to separate the metal from its matrix, demands the