also tasked with carrying out scientific research including seismic soundings and gravimetric readings. In parallel, Hillary's team had set up Scott Base—which was to be Fuchs' final destination—on the opposite side of the continent at McMurdo Sound on the Ross Sea. Using three converted Ferguson TE20 tractors and one Weasel, abandoned part-way, Hillary and his three men—Ron Balham, Peter Mulgrew and Murray Ellis)—were responsible for route-finding and laying a line of supply depots up the Skelton Glacier and across the Polar Plateau on towards the South Pole, for the use of Fuchs on the final leg of his journey. Other members of Hillary's team carried out geological surveys around the Ross Sea and Victoria Land areas. It was not originally intended that Hillary would travel as far as the South Pole, but when he had completed laying supply depots he saw the opportunity to beat the British and continued south, reaching the Pole—where the U.S. Amundsen–Scott South Pole Station had recently been established by air—on 3 January 1958. Hillary's party was just the third—preceded by Roald Amundsen in 1911 and Robert Falcon Scott in 1912—to reach the Pole overland. Hillary's arrival also marked the first time that land vehicles had ever reached the Pole. Fuchs' team reached the Pole from the opposite direction on 19 January 1958, where they met up with Hillary. Fuchs then continued overland, following the route that Hillary had laid, while Hillary flew back to Scott Base in a U.S. plane. He would later rejoin Fuchs by plane for part of the remaining overland journey. The overland party finally arrived at Scott Base on 2 March 1958, having completed the historic crossing of of previously unexplored snow and ice in 99 days. A few days later the expedition members left Antarctica for New Zealand on the New Zealand naval ship . The ship was captained by Captain Harry Kirkwood. Although large quantities of supplies were hauled overland, both parties were also equipped with light aircraft and made extensive use of air support for reconnaissance and supplies. Additional logistical help was provided by U.S. personnel who were working in Antarctica at that time. Both parties also took dog teams which were used for fieldwork trips and backup in case of failure of the mechanical transportation, though the dogs were not taken all the way to the Pole. In December 1957 four men from the expedition flew one