Depot-laying, January–March 1915 Believing that Shackleton might attempt a crossing during the first season, Mackintosh decided that the first two depots had to be laid without delay, one at 79°S near
Minna Bluff, a prominent Barrier landmark, and another further south at the 80° mark. These were, in his view, the minimum that would enable Shackleton's party to survive a crossing of the Barrier. The delayed arrival of
Aurora in the Antarctic had given little time for acclimatisation for the dogs and for the untrained men, and this led to differences of view about how to proceed. Ernest Joyce, by far the most experienced Antarctic traveller in the party, favoured a cautious approach and wanted to delay the start by at least a week. Joyce claimed that Shackleton had given him independent control over sledging activities, a view rejected by Mackintosh and later demonstrated as without foundation. Mackintosh's view having prevailed, on 24 January 1915 the first of three parties set out for the Barrier journey, the others following on the next day. Further dissension soon arose between Joyce and Mackintosh about how far south the dogs should be taken. Joyce wanted them to go no further than the Bluff, but Mackintosh's sense of urgency meant that they were taken on to 80°S. A further setback was the failure of the attempts to move stores by motor tractor. Although, ultimately, the depots were laid at Minna Bluff and at 80°S, the overall operation was beset by problems. Not all the stores had reached the depots, and, as well as the motor tractor failure, all ten dogs taken on the journey perished during the return. By the time that all parties were reunited at
Hut Point (Scott's old
Discovery base at the edge of the Barrier) on 25 March, the men themselves were exhausted and frostbitten, and there was a significant loss of confidence in Mackintosh. The condition of the sea ice in McMurdo Sound made the journey back to Cape Evans impossible, so the party was stranded until 1 June, in spartan conditions and relying on
seals for fresh meat and blubber fuel. It was later revealed that this first depot-laying season, and its attendant hardships, had been unnecessary. Shackleton had stated, in a letter sent from
South Georgia on 5 December 1914 (the date that
Endurance left South Georgia for the Weddell Sea) to
Ernest Perris of the
Daily Chronicle, that he had "no chance of crossing that season". Mackintosh was to have been informed of this, but "the cable was never sent".
Loss of the Aurora When Mackintosh departed on 25 January 1915 to lead the depot-laying parties he left the
Aurora under the command of First Officer Joseph Stenhouse. The priority task for Stenhouse was to find a winter anchorage in accordance with Shackleton's instructions not to attempt to anchor south of the
Glacier Tongue, an icy protrusion midway between Cape Evans and Hut Point. This search proved a long and hazardous process. Stenhouse manoeuvred in the Sound for several weeks before eventually deciding to winter close to the Cape Evans shore headquarters. After a final visit to Hut Point on 11 March to pick up four early returners from the depot-laying parties, he brought the ship to Cape Evans and made it fast with anchors and hawsers, thereafter allowing it to become frozen into the shore ice. On the night of 7 May, a severe gale erupted, tearing the
Aurora from its moorings and carrying it out to sea attached to a large ice floe. Attempts to contact the shore party by wireless failed. Held fast, and with its engines out of commission, the
Aurora began a long drift northward away from Cape Evans, out of McMurdo Sound, into the Ross Sea and eventually into the
Southern Ocean. Ten men were left stranded ashore at Cape Evans.
Aurora finally broke free from the ice on 12 February 1916, and managed to reach New Zealand on 2 April.
Improvisation Because Mackintosh had intended to use
Aurora as the party's main living quarters, most of the shore party's personal gear, food, equipment and fuel was still aboard when the ship departed. Although the sledging rations intended for Shackleton's depots had been landed, the ten stranded men were left with "only the clothes on their backs". Their first recourse was to the food and materials from supplies left behind by Scott's and Shackleton's earlier expeditions. == Second depot-laying season, 1915–1916 ==