Excavations show that the buts that rose from the platforms were made of wattle and hurdle-work. In different places calcined and agglutinated fragments have been picked up, and pieces of clay which had served as facing. The house to which they had belonged had been destroyed by fire, and the clay, hardened in the flames, had resisted the disintegrating action of the water. On one side this clay is smooth, and on the other it still retains the marks of the interlaced branches, which had helped to form the inner walls. Some of these marks are so clear and regular that Troyon, noticing the way they curve, was able to assert that the buts were circular, and that they varied in diameter from ten to fifteen feet. A recent discovery at Schussenreid (Wurtemberg) gives completeness to our knowledge of the Swiss Lake dwellings. In the midst of a peat-bog rises a but known as a _Knüppelbau_, which is supposed to date from the Stone age. It is of rectangular form, and is divided into two compartments communicating with each other by a foot-bridge consisting of three beams laid side by side. The floors of this but are made of rounded wood, and the walls of piles split in half. Excavations have brought to light several floors, one above the other, and divided by thick layers of clay. The rising of the level of the peat doubtless compelled the Lake Dweller to add by degrees to the height of his house. The Proto-Helvetian race were well-developed men, and the bones that have been collected show that they were not at all wanting in symmetry of form or in cranial capacity. The crania found are distinctly dolichocephalous, and their owners had evidently attained to no small degree of culture and of technical skill. Judging from the length of the femora found, though it must be added that they are mostly those of women, the ancient Lake Dwellers were not so tall as the present inhabitants of Europe. The smallness of the handles of their weapons and tools points to the same conclusion.12 Though the importance and number of the discoveries made in Switzerland render it the classic land of Lake Stations, it is not the only country in which they have been found. They have been made out in the Lago Maggiore and in the lakes of Varèse, Peschiera, and Garda in Lombardy; in Lake Salpi in the Capitanata, and in other parts of Italy. Judging from the objects recovered from these stations, they belonged partly to the Stone and partly to the Bronze age.