In 1838, the French explorer Jules Dumont d'Urville sailed over the position of Morrell's "north cape", but saw no indication of land [REF].
Although Filchner's and Shackleton's investigations and observations were accepted as conclusive proof that New South Greenland was a myth,[REF] there remained the question of Sir James Ross's reported appearance of land in a position around 65°S, 47°W [REF].