only one which may be said with certainty to make for success, self-control.
We spent the next day—it was July 21—in collecting every scrap of soft snow we could find and packing it into the crevasses between our hard snow blocks. It was a pitifully small amount but we could see no cracks when we had finished. To counteract the lifting tendency the wind had on our roof we cut some great flat hard snow blocks and laid them on the canvas top to steady it against the sledge which formed the ridge support. We also pitched our tent outside the igloo door. Both tent and igloo were therefore eight or nine hundred feet up Terror: both were below an outcrop of rocks from which the mountain fell steeply to the Barrier behind us, and from this direction came the blizzards. In front of us the slope fell for a mile or more down to the ice-cliffs, so wind-swept that we had to wear crampons to walk upon it. Most of the tent was in the lee of the igloo, but the cap of it came over the igloo roof, while a segment of the tent itself jutted out beyond the igloo wall.
That night we took much of our gear into the tent and lighted the blubber stove. I always mistrusted that stove, and every moment I expected it to flare up and burn the tent. But the heat it gave, as it burned furiously, with the double lining of the tent to contain it, was considerable.
It did not matter, except for a routine which we never managed to keep, whether we started to thaw our way into our frozen sleeping-bags at 4 in the morning or 4 in the afternoon. I think we must have turned in during the afternoon of that Friday, leaving the cooker, our finnesko, a deal of our foot-gear, Bowers' bag of personal gear, and many other things in the tent. I expect we left the blubber stove there too, for it was quite useless at present to try and warm the igloo. The tent floor-cloth was under our sleeping-bags in the igloo.
"Things must improve," said Bill. After all there was much for which to be thankful. I don't think anybody could have made a better igloo with the hard snow blocks and rocks which were all we had: we would get it air-tight
