With reference to the Mer de Glace, the author described the great transported blocks on the slope of the hill above Montanvert Inn; the smoothed rocks about 250 to 300 feet above the glacier; the two ancient lateral moraines on the east side of the valley; the action of the ice on a perpendicular wall of rock near foot of glacier; the old moraine of Lisboli, which must have formerly crossed and blocked up the valley, and the transported blocks on the hill of Flegère, about 2700 feet above Chamouni, and probably deposited there by glacier, when it was at the level of the blocks above the Montanvert.