This mountain, in Switzerland, so named on account of its white aspect, belongs to the great central chain of the Alps. It is truly gigantic, and is the most elevated mountain in Europe, rising no less than fifteen thousand, eight hundred and seventy-two feet, somewhat more than three miles, above the level of the sea, and fourteen thousand, six hundred and twenty-four feet above the lake of Geneva, in its vicinity. It is encompassed by those wonderful collections of snow and ice, called glaciers, two of the principal of which, are called Mont Dolent and Triolet. The highest part of Mont Blanc, named the Dromedary, is in the shape of a compressed hemisphere. From that point it sinks gradually, and presents a kind of concave surface of snow, in the midst of which is a small pyramid of ice. It then rises into a second hemisphere, which is named the Middle Dome; and thence descends into another concave surface, terminating in a point, which among other names bestowed on it by the Savoyards, is styled “Dome de Goute,” and may be regarded as the inferior dome. The first successful attempt to reach the summit of Mont Blanc was made in August, 1786, by Doctor Paccard, a physician of Chamouny. He was led to make the attempt by a guide, named Balma, who, in searching for crystals, had discovered the only practicable route by which so arduous an undertaking could be accomplished. The ascent occupied fifteen hours, and the descent five, under circumstances of the greatest difficulty; the sight of the doctor, and that of his guide, Balma, being so affected by the snow and wind, as to render them almost blind, at the same time that the face of each was excoriated, and the lips exceedingly swelled. On the first of August of the following year, 1787, the celebrated and indefatigable naturalist, M. de Saussure, set out on his successful expedition, accompanied by a servant and eighteen guides, who carried a tent and mattresses, together with the necessary accommodations and various instruments of experimental philosophy. The first night they passed under the tent, on the summit of the mountain of La Cote, four thousand, nine hundred and eight-six feet above the Priory, a large village in the vale of Chamouny, the journey thither being exempt from trouble or danger, as the ascent is always over turf, or on the solid rock; though above this place it is wholly over ice or snows.