Ross Sea, 1839–1841 With
James Ross in command of the ships and , three-mast
barques, Abernethy set off on a scientific expedition to
Antarctica in 1839, supported by the
Royal Society.
Joseph Hooker, later Sir Joseph but then a young naturalist, took part but because it was a naval expedition he had to be appointed as assistant surgeon. Throughout the expedition a major aim was to take magnetic readings at various ports of call starting with
Madeira,
Tenerife,
Cape Verde,
Trinidad,
St Helena,
Cape Town, and the
Crozet and
Kerguelen islands. In a storm the
boatswain was swept off
Erebus so two boats were launched to rescue him, unsuccessfully. Abernethy was in command of one boat but, just as it got back to
Erebus, the other boat was hit by a wave and all four crew were washed overboard. Abernethy cast off again and was able to rescue them. When they reached
Hobart they learned that the
Wilkes expedition and
D'Urville expedition had already sighted Antarctica so Ross decided to explore a different unknown region.
McCormick (from Parry's north polar days) who was ships' surgeon and Abernethy became close associates – and in New Zealand the pair collected natural history specimens. Ross chose 170°E as the longitude to follow south and this turned out to be the future usual route for Antarctic voyages. The ships headed into what became known as the
Ross Sea reaching
pack ice at 66°55′S in January 1840 – they then forced their way into the pack ice, the first time this had been attempted.
Amundsen wrote "Few people of the present day are capable of rightly appreciating this heroic deed, this brilliant proof of human courage and energy ... These men were heroes ...", and
Scott wrote "... all must concede that it deserves to rank among the most brilliant and famous [Antarctic expeditions] that have been made. ... few things could have looked more hopeless than an attack upon the great ice-bound region" They then emerged into open sea at 69°15′S and, sailing further south hoping to reach the
South Magnetic Pole, they spotted land and mountains which they named
Victoria Land and the
Admiralty Range, and cleared
Cape Adare. With Abernethy as
coxswain their first boat reached a coastal island,
Possession Island, but they did not reach the Antarctic mainland. Onward, they crossed the latitude of
Weddel's record of furthest south and landed on
Franklin Island. Soon, in the distance, they spotted what McCormick described as "a stupendous volcanic mountain in a high state of activity" and, getting closer, "a dense column of black smoke, intermingled with flashes of red flame". Hooker wrote of "a sight so surpassing everything that can be imagined". Ross named it
Mount Erebus, after his ship and the nearby mountain became
Mount Terror. Sailing east they reached a 200-foot ice cliff which they called the Great Southern Barrier, now the
Ross Ice Shelf, and followed it so reaching 78°4′S. By depth sounding adjacent to the ice they determined the ice was floating and was therefore 1000 feet thick. At a low point in the ice cliffs they could see from the masthead "an enormous plain of frosted silver" and they were certain there was no open sea further south. After following the barrier for over 250 miles and with the Antarctic winter approaching they returned to the west but, near Mount Erebus, could not get ashore. They were 160 miles from the south magnetic pole – 700 miles nearer than anyone had been before. After passing Cape Adare, they again succeeded in breaking through the pack ice and reached
Tasmania on 6 April 1841 to be greeted by
John Franklin and crowds of well-wishers. As it happens
Erebus and
Terror were the last vessels to navigate the Ross Sea using only sail.
Weddell Sea, 1841–1843 For more magnetic readings, they left for
Sydney in July 1841 continuing to New Zealand's
Bay of Islands. In November they set sail south, this time heading south along 146°W hoping to again reach the Ross Ice Shelf. This time they became trapped in the pack ice and it took 58 days to reach through 800 miles of pack to open water. They sighted what became
Edward VII Land and, reaching their new furthest south of 78°9′S, they again saw the Ice Shelf. With the sea beginning to freeze solid, Ross headed north and set course for the
Falkland Islands. The two ships became pinched between two barrier icebergs and collided several times with both ships severely damaged and facing capsize.
Terror managed to sail clear but
Erebus was trapped with the only means of escape being to "stern board" (sailing stern first) with Abernethy as ice-master. Abernethy "one of the most experienced icemen of our day – ever vigilant and on the watch" was able to guide them through a gap hardly wider than the ship. At last, after rounding
Cape Horn, they reached
East Falkland in April 1842 and refitted the ships. For more magnetic readings they sailed for
Cape Horn, arriving in September but it was too early in the season to head south again so they took extended readings and then returned to the Falkland Islands, setting off on 17 December down 55°W aiming to reach the Antarctic coast at 40°W through the
Weddell Sea. This time they failed to penetrate any distance into the pack ice so they retreated, heading for the
Cape of Good Hope arriving in April 1843, and sailing home via
St Helena,
Ascension Island and
Rio de Janeiro. They arrived back in England on 23 September 1843, after which Abernethy has been briefly lost to history. ==Searches for John Franklin's lost expedition party==