In countries whose lakes and rivers are fed from snow-clad mountains and glaciers, it is observed that their waters find their greatest diminution in winter, when a portion of their supply is temporarily suspended in the form of ice. This phenomenon became unusually intensified in Switzerland during the winter of 1853-4, so much so, that the level of its lakes had sunk lower than had ever before been known. Some of the inhabitants of the village of Ober-Meilen, on the east shore of Lake Zürich, took advantage of this circumstance to extend their vineyards, by recovering portions of the exposed shore, which they enclosed with stone walls, and filled in the space with mud, so as to bring its surface above the ordinary level of the lake. In the course of these operations the workmen came upon the heads of wooden piles around which were portions of stags' horns, stone hatchets and other implements (=Fig. 1=), which excited some curiosity among them. The event, however, was not singular in the district, as objects of a similar character were on several occasions encountered along the shore of the lake; and even in this same spot, in 1829, when the little harbour of the village was being deepened, bits of rotten piles, as well as implements of stone and horn, were turned up among the dredged stuff. They were not, however, deemed of sufficient value to be rescued from the mud, so that, along with it, they were carried away and re-deposited in deep water. Also at Männedorf, a village a few leagues farther up the lake, during the winter of 1843-4, while its harbour was being enlarged, similar discoveries were made. A few of the relics were on this occasion collected and sent to the Museum at Zürich, where they are still to be seen. Indeed, these, and other recorded instances of antiquarian remains being fished up or dredged from the Swiss lakes, are by no means exceptional events; but, however suggestive they may now appear, they all failed to excite in the minds of their beholders that great deduction which will for ever associate the name of Keller with the lake-dwellings of Europe. On this occasion the schoolmaster of the village of Ober-Meilen, Mr. Æppli, whose house was close by, considered the find of sufficient importance to be brought under the notice of the Antiquarian Association at Zürich, which he accordingly did in the month of January, 1854. Thus it was that Dr. Keller appeared on the scene. From the investigations which subsequently ensued the following general facts were ascertained.