Among the most remarkable of the relics of the bronze epoch which have been recovered from the Swiss lakes, the hatchets or celts are well deserving of mention. They are from 4 to 8 inches in length, and weigh from 10 to 15 pounds. Their shapes are varied; but all possess the distinctive characteristic of being adapted to fit longitudinally on their handles, and not transversely, as in the Stone Age. It is but seldom that they are not furnished with a hole or ear, so as to furnish an additional means of attachment. We have in the first place the hatchet with wings bent round on each side of the blade, so as to constitute a kind of double socket, intended to receive a handle divided in the middle and bent into an elbow. This is the most prevalent type. Sometimes, as may be noticed in fig. 176, the upper end is pierced with an eye, doubtless intended to hold a band for fixing firmly the curved handle. This arrangement is peculiar to the hatchets of large size, that is, to those which had the most strain put upon them. Another type which is very rare in Switzerland--only one specimen of it existing in the Museum of Neuchâtel--is that (fig. 177) in which the wings, instead of bending back upon the blade perpendicularly to the plane of the cutting edge, turn back in the same plane with it, or in the thickness of the blade. [Illustration: Fig. 176.--Bronze Winged Hatchet, from the Lacustrine Habitations of Switzerland.] [Illustration: Fig. 177.--Winged Hatchet (front and side view), from the Lacustrine Habitations of Switzerland.] There is also the hatchet with the ordinary socket, either cylindrical (fig. 178) or angular. This shape is very common in France, where they are known by the name of _celts_. [Illustration: Fig. 178.--Socketed Hatchet from the Lacustrine Habitations.] [Illustration: Fig. 179.--Knife Hatchet (front and side view), from the Lacustrine Habitations.] M. Morlot has given the name of _knife-hatchets_ (fig. 179), to those instruments, the perforated ears of which are scarcely, if at all developed, and could by no means serve to give firmness to a handle. It is probable that these instruments were grasped directly by the hand; and that the mere rudiments of wings which may be noticed, were merely intended to substitute a rounded surface for a sharp ridge. Figures 176, 177, 178 and 179, are taken from M. Desor's 'Mémoire sur les Palafittes.' Next to the hatchets we must mention the chisels for wood-work (fig. 180), which are cut out to a great nicety, and in no way differ from our present chisels, except in the mode of fitting to the handle, which is done by means of a socket. [Illustration: Fig. 180.--Carpenter's Chisel, in Bronze.] [Illustration: Fig. 181.--Hexagonal Hammer.] [Illustration: Fig. 182.--Knife with a tang to fit into a Handle, from the Lacustrine settlements of Switzerland.]