An interesting discovery was made two hundred miles south of Tasmania. Here it was proved that a rocky ridge rose like a huge mountain from depths of more than two thousand fathoms to within five hundred and forty fathoms of the surface. A great number of soundings were taken in the vicinity of this rise, subsequently named the Mill Rise, until a heavy gale drove us far from its situation. On November 21 we were not far from Macquarie Island and, at 7 P.M., sounded in one thousand four hundred and fifty fathoms. As the weather was remarkably fine for these latitudes we decided to lower the trawl. Before dark it was being towed slowly towards the east with one thousand nine hundred fathoms of wire out. We spent an anxious night hoping that the weather would remain fine long enough to permit us to get the gear on board again. We had been driving before a light westerly wind, when the trawl caught on the bottom and stopped the vessel. A very heavy strain was imposed on the wire as the vessel rose in the swell; the dynamometer registering up to seven tons. I decided to wait for daylight before attempting to heave in the trawl. At 3 A.M. we cast the wire off the after-block and started to heave away; it was two hours before the trawl cleared the bottom and the strain was reduced. At 8 A.M. the trawl was once more on board, the frames being bent and twisted and the net badly torn. On sounding, the depth was found to be only six hundred and thirty-six fathoms, so that we had evidently put over the trawl on to the edge of a steep rise and then drifted across it. In view of our position--only thirty miles from Macquarie Island--this accident might have been expected. But opportunities of trawling had been so few that risks had to be taken when the weather quieted down for a few hours. Our only consolation on this occasion was that we recovered the gear. The following evening, at 7.30, the anchor was dropped in North-East Bay, Macquarie Island, and we were immediately boarded by our land party who were all well. They had become very clever boatmen during their stay, using a small dinghy to make coastal journeys. On November 24 we left the anchorage at 9 A.M. and spent the day in its vicinity. More than one hundred soundings were taken, which Blake, the geological surveyor, was to plot on the chart of the island which he had almost completed. Some idea of the steepness of the submarine mountain of which Macquarie Island forms the crest may be gathered from a sounding, taken ten and a half miles east of the island, which gave two thousand seven hundred and forty-five fathoms and no bottom. In other words, if the sea were to dry up, there would be a lofty mountain rising from the plain of the ocean's bed to a height of nearly eighteen thousand feet.