as was afterward discovered, is the backbone of Grinnell Land. The wall of the glacier near which they camped presented a vertical face of solid ice 140 feet high. At intervals they heard the sound of falling ice—small fragments which became detached and dropped to the base. The altitude of this camp above the sea-level was found to be 1,240 feet, and of Lake Nan 920 feet; that of their last camp was 685 feet, and of the first camp in the valley, 420 feet. Passing onward, they crossed several small lakes close along the wall, with brooks emptying into them from the north. In a few hours they were on the divide, the surface to the north having more slope than that on the other side. The summit gave an elevation by barometer of 2,610 feet, about 400 feet higher than where they left the wall. They had an extensive view to the east, and could see Dodge River as far as they had explored it, also Mount Easy and the country adjacent. To the southeast, south, and southwest, was seen the glacier, which was named after Agassiz. It formed the horizon for half a dozen miles in these directions. All the ice-capped country and glaciers seen from the former camps were found to be connected with, and to form a part of this one glacier. Toward the north, the country had comparatively little snow. Presently they came in view of a mountain-peak toward the northwest, not many miles distant, which was recognized as Mount Arthur, the farthest point reached by Lieutenant Greely during the previous year. Away beyond it were seen very distinctly the United States and Garfield Mountains. Just to the west of Mount Arthur, they discovered a large lake, which Lockwood named Lake Fletcher. They were now on a surface rapidly sloping to the west. Some miles distant in this direction appeared a broken range of cliffs and mountains, and between their stand-point and these mountains was a wide valley, connected by a stream with Lake Fletcher, and a small lake, close to the Chinese Wall, which they called Lake Harry, the latter having an elevation of 1,320 feet. They crossed Lake Harry, and beyond it came to another called Lake Bessie, having an elevation of 1,630 feet, and covered with deep snow.