The sea-ice was by then thick and safe. About half a mile off shore a very successful dredging was made in fifty fathoms; the bottom at this depth simply teemed with life. At first, the dredge, rope-coils, tub, picks and other necessary implements were dragged about on a sledge, but the sledge was hauled only with great difficulty and much exertion over the sticky, new sea-ice. As a substitute a portable, steel handcart was advantageously employed, although, owing to its weight, tide-cracks and rotten areas had to be crossed at a run. On one occasion a flimsy surface collapsed under it, and Hunter had a wetting before it was hauled on to firmer ice.
On September 4 there was a cloud radiant from the northwest, indicative of a change in the weather. Ninnis, Mertz and Murphy transported more food-bags and kerosene to Aladdin's Cave. They found Franklin one and a half miles south of the Hut lying on the ice quite well, but there was no sign of Scott. Both dogs were seen on the 1st of the month, when they were in a locality south-east of the Hut, where crevasses were numerous. It seemed most probable that Scott had lost his life in one of them. The party visiting the Cave reported a considerable amount of snow drifting above a level of one thousand feet.
There was another day of successful dredging, and, about four o'clock, while several men were still out on the ice, whirlies with great columns of drift came steadily down the glacier, pouring over the seaward cliffs. In a few minutes the snow-clouds were round the Hut and the wind was not long in working up to eighty miles per hour. The dredging party reached the land just in time; and the sea-ice drifted away to the north. Thus ended one of the most remarkable periods of fine weather experienced by us in Adelie Land, only to be excelled in the height of summer.
The possibility of such a spell being repeated fired us with the hope that after all a reasonable amount of sledging could be accomplished in the spring. Three parties were chosen to reconnoitre in different directions and to test the sledging gear. As we were far from being confident in the weather, I made it clear that no party should penetrate farther than fifty miles from the Hut, nor remain away longer than a fortnight.
Webb, McLean and Stillwell, the southern reconnoitring party, were the first to set off, leaving on September 7 against a wind of fifty-six miles per hour. Between them they had only one pair of good spiked crampons, and it was a hard, five hours' drag up to Aladdin's Cave. A tent which had been spread over the entrance to keep out snow was picked up here. It had suffered punctures and small tears from crampons, and, as the next day was one of boisterous wind, the party spent it repairing the tent and endeavouring to take magnetic observations. The latter had to be abandoned owing to the instrument becoming iced up.
Next afternoon the wind fell to the forties, and the party struggled on to the south for three miles two hundred yards and camped, as it was necessary to make a search for a small depot of pemmican tins, a pick and a shovel left by us in the vicinity in August. The drift cleared at noon on the 11th, and the bamboo pole marking the depot appeared a quarter of a mile away on the right. The pick, shovel and flag were secured and another afternoon's march against a fifty-mile wind with a temperature at -20 degrees F. brought the party three and a quarter miles further, to a point eleven and three-quarter miles south of the Hut. The wind rose to the eighties during the night, and there were many small holes in the tent which provided more ventilation than was agreeable. As the wind was too strong for travelling on the 12th, it was decided to make a cave in case of accident to the tent.
A tunnel was driven into the sloping surface of the ice towards a crevasse about a foot wide. It was a good ten hours' job in tough ice before the crevasse was reached. Into the fissure all the hewn ice was thrown instead of being laboriously shovelled up through the tunnel. The "Cathedral Grotto" was soon finished, the tent was struck and the party made themselves comfortable inside. The cavern was found to be a very draughty place with a crevasse along one wall, and it was difficult to keep warm in one-man sleeping-bags. The crevasse was accordingly closed with ice and snow. That evening and on several subsequent occasions McLean took blood-pressure observations.
During the next three days the wind was so strong that Webb's were the only crampons in which any efficient marching could be done. The time was spent in building a high break-wind of ice-blocks, a pit being excavated on the windward side in which Webb took a full set of magnetic observations. Within the "Grotto" the instrument rapidly became coated with ice-crystals; in the open air this difficulty did not arise, but others had to be overcome. It was exceedingly cold work at -20 degrees F. in a sixty-mile wind, both for Webb and his recorder Stillwell.
There seemed no hope of going forward, so the depot flag was hoisted and a fortnight's provisions and kerosene stowed in the lee of the break-wind. It was a furious race back to the Hut via Aladdin's Cave with a gusty, seventy-five-mile wind in the rear. McLean and Stillwell actually skied along on their short blunt crampons, while Webb did his best to brake behind.
The second party comprised Ninnis, Mertz, and Murphy, who went to the south-east, leaving on September 11. After a hard fight to Aladdin's Cave, the wind approaching fifty miles an hour, they diverged to the south-east. On the 12th they made steady progress up the slope of the glacier, delayed by many small crevasses. The surface was so rough that the nuts on the sledge-meter soon became loose and it was necessary to stop every quarter of a mile to adjust them. The day's march was a solid five and three quarter miles against a fifty-mile wind.