The calm atmosphere was highly favourable, for though the cold became intense, and the mercury was always frozen in the thermometer, they found no difficulty in continuing their route, confirming the truth of Parry's assertion that any man suitably clad may walk abroad with impunity in the lowest temperature, provided there is no wind; while, on the other hand, the least breeze would make the skin smart acutely, and bring on violent headache, which would soon end in death. On the 5th of March a peculiar phenomenon occurred. The sky was perfectly clear and glittering with stars, when suddenly snow began to fall thick and fast, though there was not a cloud in the heavens and through the white flakes the constellations could be seen shining. This curious display lasted two hours, and ceased before the Doctor could arrive at any satisfactory conclusion as to its cause. The moon had ended her last quarter, and complete darkness prevailed now for seventeen hours out of the twenty-four. The travellers had to fasten themselves together with a long rope to avoid getting separated, and it was all but impossible to pursue the right course. Moreover, the brave fellows, in spite of their iron will, began to show signs of fatigue. Halts became more frequent, and yet every hour was precious, for the provisions were rapidly coming to an end. Hatteras hardly knew what to think as day after day went on without apparent result, and he asked himself sometimes whether the Porpoise had any actual existence except in Altamont's fevered brain, and more than once the idea even came into his head that perhaps national hatred might have induced the American to drag them along with himself to certain death. He told the Doctor his suppositions, who rejected them absolutely, and laid them down to the score of the unhappy rivalry that had arisen already between the two captains. [Illustration: ] On the 14th of March, after sixteen days' march the little party found themselves only yet in the 82 deg. latitude. Their strength was exhausted, and they had a hundred miles more to go. To increase their sufferings, rations had to be still further reduced. Each man must be content with a fourth part to allow the dogs their full quantity. Unfortunately they could not rely at all on their guns, for only seven charges of powder were left, and six balls. They had fired at several hares and foxes on the road already, but unsuccessfully. However, on the 15th, the Doctor was fortunate enough to surprise a seal basking on the ice, and, after several shots, the animal was captured and killed. Johnson soon had it skinned and cut in pieces, but it was so lean that it was worthless as food, unless its captors would drink the oil like the Esquimaux. The Doctor was bold enough to make the attempt, but failed in spite of himself.