For many hours a way was won through a mighty turmoil of serac and over innumerable crevasses with varied fortune. Just before lunch my two sledges were nearly lost through the dogs swinging sharply to one side before the second sledge had cleared a rather rotten snow-bridge. I was up with the dogs at the time, and the first intimation I received of an accident was on seeing the dogs and front sledge being dragged backwards; the rear sledge was hanging vertically in a crevasse. Exerting all my strength I held back the front sledge, and in a few moments was joined by Ninnis and Mertz, who soon drove a pick and ice-axe down between the runners and ran out an anchoring rope. It was a ticklish business recovering the sledge which hung suspended in the crevasse. It could not be lifted vertically as its bow was caught in a V-shaped cornice formed by an overhanging mass of snow. To add to our troubles the ground all about the place was precarious and unsafe. Mertz and Ninnis therefore lowered me down and I attached a rope to the tail-end of the sledge. The bow-rope and tail-rope were then manipulated alternately until the bow of the sledge was manoeuvred slowly through the gaping hole in the snow-lid and was finally hauled up on to level ground. No more remarkable test of the efficiency of the sledge straps and the compactness of the load could have been made. After lunch Mertz ascended a high point and was able to trace out a route which conducted us in a few hours to a better surface. We were now at an elevation of from four hundred to five hundred feet above sea-level, running across a beam-wind on our right which increased during the afternoon. A rising blizzard made it necessary to camp after a day's run of ten and one-third miles. The wind blew up to seventy miles an hour during the night, but eased in strength early on November 30. At 10 A.M. we tried to make a start, but the dogs refused to face the drift. On the wind becoming gusty in the afternoon, it was once more possible to travel, and we set out. Dense drift was still to be seen pouring over the highlands to the south-east. Above the glacier ahead whirlies, out-lined in high revolving columns of snow, "stalked about" in their wayward courses. The sledges ran through a sea of crevassed, blue ice, over ridges and past open chasms. Seven miles brought us to the "foot-hills" on the eastern border of the Ninnis Glacier, where we pitched camp. The first day of December was still and hot, with brilliant sunshine. The shade temperature reached 34 degrees F. and the snow became so sticky that it was as much as we and the dogs could do to move the sledges up the slopes. As the evening lengthened and the sun sank lower the surface froze hard and our toil was lightened. At midnight we reached an altitude of nine hundred feet.