How Lake Geneva Was Made

Geologists are now pretty well agreed that the Lake of Geiieva itsolf was exoavated by an old glacier. lts power, at all events, was adequate to the task. It was one hundred miles long, and near four thousand feet in thickness t the head of the lake, as can now be seen by the striated marking it left on the overhanging mountains. It acted both as a rasp - its under side being sot with teeth, forined of the rooks it had picked up on it way, or which had fallen into it through its crevasses ; and also as a scoop pushing bofore it all that it could thrust out of ita way. And what could not suoli a tooi rasp away and scoop out, at a point where its rasping and scooping were brought into play, as it slid along, thicker than Snowdon is high above sea, and impelled by the pressure of the hundred miles of descending glaeier behind, that then filled the whole broad valley up to and boyond Oberweald ! It was wasting away as it approached the site of the modern city, where it must have quito come to an end, tor the lake here shoals to notliing ; there could, therefore, have then been no inore rasping and scooping. At the head of the lake, whero the glacier tooi was tilted into the position for rasping and scooping vigorously, the water, notwithstanding subsequent detrital depositions is nine hundred fect deej).