Mivins instantly dived down below, as the sailors express it; and we may remark, in passing, that the expression, in this particular case, was not inappropriate, for Mivins, as we have elsewhere said, was remarkably agile and supple, and gave beholders a sort of impression that he went head-foremost at everything. O'Riley followed at a more reasonable rate, and in a few minutes the crew of the _Dolphin_ were seated at supper in the cabin, eating with as much zest, and laughing and chatting as blithely, as if they were floating calmly on their ocean home in temperate climes. Sailors are proverbially light-hearted, and in their moments of comfort and social enjoyment they easily forget their troubles. The depression of spirits that followed the first disappearance of the sun soon wore off, and they went about their various avocations cheerfully by the light of the aurora borealis and the stars. The cabin, in which they now all lived together, had undergone considerable alterations. After the return of Fred Ellice and the hunting-party, whom we left on the ice-belt in the last chapter, the bulk-head, or partition, which separated the cabin from the hold had been taken down, and the whole was thrown into one large apartment, in order to secure a freer circulation of air and warmth. All round the walls inside of this apartment moss was piled to the depth of twelve inches to exclude the cold, and this object was further gained by the spreading of a layer of moss on the deck above. The cabin hatchway was closed, and the only entrance was at the farther end, through the hold, by means of a small doorway in the bulk-head, to which was attached a sort of porch, with a curtain of deer-skins hung in front of it. In the centre of the floor stood an iron cooking-stove, which served at once the purpose of preparing food and warming the cabin, which was lighted by several small oil lamps. These were kept burning perpetually, for there was no distinction between day and night in mid-winter, either in the cabin or out of doors. In this snug-looking place the officers and men of the ship messed, and dwelt, and slept together; but, notwithstanding the _apparent_ snugness, it was with the greatest difficulty they could keep themselves in a sufficient degree of warmth to maintain health and comfort. Whenever the fire was allowed to get low, the beams overhead became coated with hoar-frost; and even when the temperature was raised to the utmost possible pitch, it was cold enough, at the extreme ends of the apartment, to freeze a jug of water solid. A large table occupied the upper end of the cabin between the stove and the stern, and round this the officers and crew were seated when O'Riley entered and took his place among them. Each individual had his appointed place at the mess-table, and with unvarying regularity these places were filled at the appointed hours.