At first the coldest part of the house was undoubtedly the floor, which was formed of inch tongue-and-groove: boarding, but was not double-lined. There was a space of about four feet under the hut at one end, and as the other rested almost on the ground it was obvious to us that as long as this space remained we should suffer from the cold. So we decided to make an airlock of the area under the hut, and to this end we built a wall with the bulk of provision cases round the south-east and southerly sides, which were to windward. On either side of the porch two other buildings were gradually erected. One, built out of biscuit cases, the roof covered with felt and canvas, was a store-room for Wild, who looked after the issue of all food-stuffs. The building on the other side was far more elaborate, and was built by Mawson to serve as a chemical and physical laboratory. It was destined, however, to serve solely as a store-room, for the temperature inside was so nearly the same as that outside, that the moist atmosphere rushing from the hut covered everything inside this store-room with fantastic ice crystals. The lee side of the hut ultimately became the wall of the stables, for we decided to keep the ponies sheltered for the winter. However the first night they were stabled none of us had much rest, and some of them broke loose and returned to their valley. Shortly afterwards Grisi, one of the most high-spirited of the lot, pushed his head through a window, so the lower halves of the hut windows had to be boarded up. In a store-room built on the south-east of the hut we kept the tool-chest, the shoe-maker's outfit which was in constant requisition, and any general stores that had to be issued at stated times. But the first blizzard found out this place, and after the roof had been blown off the wall fell down. When the weather was fine again we organised a party to search for such things as mufflers, woollen helmets and so on, and I found a Russian felt boot, weighing five pounds, lying three-quarters of a mile from the crate in which it had been stowed. For the whole of this distance it must have had a clear run in the air, for there was not a scratch on the leather. The dog kennels were placed close to the porch of the hut, and the meteorological station was on the weather side on the top of a small ridge. Adams was responsible for this, and as readings of the instruments were to be taken day and night at intervals of two hours, and as in thick weather the man trying to go between hut and screen might possibly lose his way, a line was rigged up on posts which were cemented into the ground by ice. CHAPTER XI WINTER QUARTERS INSIDE