The party established at Camp III made little expeditions to the Lhakpa La and Ra-piu-la, and obtained a fine view of Makalu and the Northern face of Everest; but the views so obtained also gave them a sight of the approaching monsoon, and this made every one very nervous about the length of time there was left to us for our actual attack on the mountain. It was this very point, including also the evidence of rough and uncertain weather which had been experienced round the mountain itself, that decided Strutt to allow four members to make an attempt on the mountain without oxygen. Certain defects had been found in the oxygen apparatus, and Finch was employed in rectifying these difficulties, and at the same time he was not quite ready to proceed further. Geoffrey Bruce was also working with him at Camp III, and made great progress in the use of the oxygen. They also roped in as their assistant the Gurkha Tejbir, having for him a special rôle. It is not for me to describe in detail the great attempt on the mountain made by the party consisting of Mallory, Somervell, Morshead, and Norton, but I must point out quite clearly that as a _tour de force_ alone it stands, in my opinion, by itself. It was the most terrific exertion, carried out during unfavourable weather and in the face of that dreadful West wind. Not only did they reach the prodigious height of 26,985 feet without the assistance of oxygen, but they passed a night at 25,000 feet. I think it is pretty clear from their accounts that any further expedition must be clothed in windproof suitings, and these of the lightest, when attacking Everest, or probably any other great mountain in this particular part of the world. Morshead, who suffered far more than any of the others from the cold, did not employ his windproof suiting in the early part of the climb, and I believe by this omission he very greatly decreased his vitality, and it was probably this decrease which was the reason of his terrible frostbites. It was a tremendous effort, unparalleled in the history of mountain exploration, but it gave immense confidence to all that the mountain was not unconquerable. If on the first occasion such a gigantic height could be reached, we were pretty certain that later, with the experience so gained, and with the weather in the climbers’ favour instead of the horrible conditions under which this climb was undertaken, the mountain would in time yield to assault.