Transit of Venus next summer, and to make discoveries to the South and West of Cape Horn". The London Gazetteer was more explicit when it reported on 18 August 1768: "The gentlemen, who are to sail in a few days for George's Land, the new discovered island in the Pacific ocean, with an intention to observe the Transit of Venus, are likewise, we are credibly informed, to attempt some new discoveries in that vast unknown tract, above the latitude 40". The results of this first voyage of James Cook in respect of the quest for the Southern Continent were summed up by Cook himself. He wrote in his Journal on 31 March 1770 that the Endeavour voyage "must be allowed to have set aside the most, if not all, the Arguments and proofs that have been advanced by different Authors to prove that there must be a Southern Continent; I mean to the Northward of 40 degrees South, for what may lie to the Southward of that Latitude I know not". The second voyage of James Cook aboard explored the South Pacific for the landmass between 1772 and 1775 whilst also testing Larcum Kendall's K1 chronometer as a method for measuring longitude. Decline of the idea Over the centuries the idea of Terra Australis gradually lost its hold. In 1616, Jacob Le Maire and Willem Schouten's rounding of Cape Horn proved that Tierra del Fuego was a relatively small island, while in 1642 Abel Tasman's first Pacific voyage proved that Australia was not part of the mythical southern continent. Much later, James Cook sailed around most of New Zealand in 1770, showing that even it could not be part of a large continent. On his second voyage he circumnavigated the globe at a very high southern latitude, at some places even crossing the Antarctic Circle, showing that any possible southern continent must lie well within the cold polar areas. There could be no extension into regions with a temperate climate, as had been thought before. In 1814, Matthew Flinders published the book A Voyage to Terra Australis. Flinders had concluded that the Terra Australis as hypothesized by Aristotle and Ptolemy did not exist, so he wanted the name applied to what he saw as the next best thing: "Australia", replacing the former name for the continent, New Holland. He wrote:There is no probability, that any other detached body of land,