"The Swiss lakes, with their lacustrine habitations, have furnished numerous specimens of canoes. Dr. Keller, in his fifth Report on Lake-Dwellings (plate X. fig. 23), represents a canoe from Robenhausen; it is the half trunk of a tree 12 feet long and 29 inches wide, hollowed out to a depth of from 6 to 7 inches only. Taking the centre as the widest part, this trunk has been chipped off so as to taper towards the two points which are rounded. It is, however, very probable that the whole of this work was executed with stone implements; for the primitive settlement of Robenhausen, situated in a peat-bog near the small lake Pfæffikon in the canton of Zurich, although very rich in many kinds of objects, has not, up to the present time, furnished us with any metal instruments. "In his first report (plate IV. fig. 21), Dr. Keller had given the sketch of another canoe which came from the Lake of Bienne. Like the first, mentioned by M. Worsaae, it is the half of the trunk of a tree cut almost straight through, its two ends hollowed out inside in the shape of a trough, the exterior being left entirely unwrought. "Professor Desor mentions several canoes found in the Lake of Bienne. One of them, near the island Saint-Pierre, was still full of stones. According to M. Desor the builders of the lacustrine habitations during the polished-stone epoch, in order to consolidate the piles which were intended to support their dwellings, were accustomed to bank them up with stones which they fetched in boats from the shore; the bottom of the lake being completely devoid of them. The canoe found at the isle of Saint-Pierre had therefore sunk to the bottom with its cargo, and thus may be dated back to the polished-stone epoch. M. Troyon[24] gives some still more circumstantial details as to this canoe. It is partly buried in the mud at the northern angle of the isle, and is made of a single piece of the trunk of an oak of large dimensions; it is not much less than 49 feet long with a breadth of from 3-1/2 feet to 4 feet. "M. Desor, in his _Palafittes_, informs us that the Museum of Neuchâtel has lately been enriched by the addition of a canoe which was discovered in the lake; unfortunately, it was dreadfully warped in drying. "Also M. Troyon, in his 'Habitations Lacustres,' speaks of several canoes at Estavayer and Morges. "Estavayer is situated on the Lake of Neuchâtel. There are two settlements near it, one of the Stone Age, and one of the bronze age. One canoe is still lying at the bottom of the lake, near these settlements. Another was brought out of the water by the fishermen some years ago; it was about 10 feet in length, and 2 feet in width. The end which had been preserved was cut to a point and slightly turned upwards.