The effects of the deluge of the 3d and 4th of August, remain on the Dorbach, in a bank one hundred feet high, which rose with slopes and terraces covered with birch and alder wood. The soil being naturally spongy imbibed so much rain, that it became overloaded, and a mass of about an acre in extent, with all its trees on it, gave way at once, threw itself headlong down, and bounded across the bed of the Dorbach, blocking up the waters, flooded and wide as they were at the time. A farmer, who witnessed this phenomenon, told Sir Thomas Dick Lauder that it fell “wi’ a sort o’ a dumb sound,” while astonished and confounded he remained gazing at it. The bottom of the valley is here some two hundred yards or more wide, and the flood nearly filled it. The stoppage was not so great, therefore, as altogether to arrest the progress of the stream; but this sudden obstacle created an accumulation of water behind it, which went on increasing for nearly an hour, till, becoming too powerful to be longer resisted, the enormous dam began to yield, and was swept off at once, and hurled onwards like a floating island. While the farmer stood lost in wonder to behold his farm thus sailing off to the ocean by acres at a time, another half acre, or more, was suddenly rent from its native hill, and descended at once, with a whole grove of trees on it, to the river, where it rested on its natural base. The flood immediately assailed this, and carried off the greater part of it piecemeal. At the time when Sir Thomas was writing, part of it remained with the trees growing on it in the upright position, after having travelled through a horizontal distance of sixty or seventy yards, with a perpendicular descent of not less than sixty feet. [Picture: The flood like—Brig of Bannock. (The dotted line shows the height gained by the flood above the usual level of the stream)]