We lay down for a few hours on the night of the 6th June, resolved to rise at three in the morning for our attempt upon the summit of Denali. At supper Walter had made a desperate effort to use some of our ten pounds of flour in the manufacture of "noodles" with which to thicken the stew. We had continued to pack that flour and had made effort after effort to cook it in some eatable way, but without success. The sour dough would not ferment, and we had no baking-powder. _Is_ there any way to cook flour under such circumstances? But he made the noodles too large and did not cook them enough, and they wrought internal havoc upon those who partook of them. Three of the four of us were unwell all night. The digestion is certainly more delicate and more easily disturbed at great altitudes than at the lower levels. While Karstens and Tatum were tossing uneasily in the bedclothes, the writer sat up with a blanket round his shoulders, crouching over the primus stove, with the thermometer at -21 deg. F. outdoors. Walter alone was at ease, with digestive and somnolent capabilities proof against any invasion. It was, of course, broad daylight all night. At three the company was aroused, and, after partaking of a very light breakfast indeed, we sallied forth into the brilliant, clear morning with not a cloud in the sky. The only packs we carried that day were the instruments and the lunch. The sun was shining, but a keen north wind was blowing and the thermometer stood at -4 deg. F. We were rather a sorry company. Karstens still had internal pains; Tatum and I had severe headaches. Walter was the only one feeling entirely himself, so Walter was put in the lead and in the lead he remained all day. [Illustration: The South Peak from about 18,000 feet. The ridge with two peaks in the background is shaped like a horseshoe, and the highest point on the mountain is on another little ridge just beyond, parallel with the ridge that shows, almost at the middle point between the two peaks.] [Sidenote: Start to the Summit] [Sidenote: Cold]