Everything pointed to the conclusion that the edge of the ice was melting, the ice-islands fell apart with loud reports, the ice running off in little rivulets: there was undoubtedly a thaw, and Fanning had been right in saying that these latitudes should not be visited before February.

D'Urville now decided to steer for the north, and try to reach the islands of New South Orkney, the map of which had not yet been accurately laid down. The commander was anxious to survey that archipelago thoroughly, and to spend several days there before resuming his southerly course, so as to be in the Antarctic regions at the same time of year as Weddell.

For three days the explorer coasted along the southern shores of New South Orkney without being able to land; he then once more turned southwards, and came in sight of the ice again in S. lat. 62° 20' and W. long. 39° 28'.

A few minutes before midday a kind of opening was discovered, through which the vessels were forced at all risks. This bold manoeuvre was successful, and in spite of the heavy snow, the explorers penetrated into a small basin scarcely two miles in extent and hemmed in on every side by lofty walls of ice. It was decided to make fast to the ice, and when the order to cast anchor was given a young middy on board the Zelée cried naively, "Is there a port here? I shouldn't have thought there were people living on the ice."

Great indeed was now the joyful enthusiasm on both vessels. Some of the young officers of the Zelée had come to empty a bowl of punch with their comrades of the Astrolabe, and the commander could hear their shouts of delight from his bed. He himself did not, however, look upon the situation in quite the same favourable light. He felt that he had done a very imprudent thing. Shut into a cul-de-sac, he could only go out as he had come, and that he could not do until he had the wind right aft. At eleven o'clock D'Urville was awoke by a violent shock, accompanied by a noise of breaking, as if the vessel had struck on some rocks. He got up, and saw that the Astrolabe, having drifted, had struck violently against the ice, where she remained exposed to collision with the masses of ice which the current was sweeping along more rapidly than it did the vessel herself.

When day dawned the adventurers found themselves surrounded by ice, but in the north a blackish blue line seemed to betray the existence of an open sea. This direction was at once taken, but a thick fog immediately and completely enveloped both ships, and when it cleared off they found themselves face to face with a compact ice barrier, beyond which stretched away as far as the eye could reach AN OPEN SEA!

D'Urville now resolved to cut himself a passage, and began operations by dashing the Astrolabe with all possible speed against the obstacle. The vessel penetrated two or three lengths into the ice, and then remained motionless. The crew climbed out of her on to the ice armed with pickaxes, pincers, mattocks, and saws, and merrily endeavoured to cut a passage. The fragment of ice was already nearly crossed when the wind changed, and the motion of the waves in the offing began to be felt, causing the officers to agree in urging a retreat into the shelter of the ice-walls, for there was some danger if the wind freshened of the vessel being embayed against the ice and beaten to pieces by the waves and floating débris.

The corvettes had traversed twelve or fifteen miles for nothing, when an officer, perched in the shrouds, sighted a passage in the E.N.E. That direction was at once taken, but again it was found impossible to cut a passage, and when night came the crew had to make the ship fast to a huge block of ice. The loud cracking noises which had awoke the commander the night before now began with such violence that it really seemed impossible for the vessel to live till daylight.

After an interview with the captain of the Zelée, however, D'Urville made for the north, but the day passed without any change being effected in the position of the vessels, and the next day during a storm of sleet the swell of the sea became so powerful as completely to raise the ice plain in which they were imprisoned.

More careful watch than ever had now to be kept, to guard against the pieces of ice flung long distances by this motion, and the rudder had to be protected from them by a kind of wooden hut.