if the snow is found in good condition, and always offering a detour by which to avoid an obstacle. From the North-east Shoulder to the summit of the mountain the way is not so smooth. The rise is only 1,000 feet in a distance of half a mile, but the first part of the crest is distinctly jagged by several towers and the last part is steep. Much will depend upon the possibility of escaping from the crest to avoid the obstacles and of regaining it easily. The South-east side (left going up) is terribly steep, and it will almost certainly be out of the question to traverse there. But the sloping snow-covered ledges on the North-west may serve very well; the difficulty about them is their tendency to be horizontal in direction and to diverge from the arete where it slopes upwards, so that a party which had followed one in preference to the crest might find themselves cut off by a cliff running across the face above them. But one way or another I think it should be possible with the help of such ledges to reach the final obstacle. The summit itself is like the thin end of a wedge thrust up from the mass in which it is embedded. The edge of it, with the highest point at the far end, can only be reached from the North-east by climbing a steep blunt edge of snow. The height of this final obstacle must be fully 200 feet. Mr. Bullock and I examined it often through our field-glasses, and though it did not appear insuperable, whatever our point of view, it never looked anything but steep. * * * * *