 Consequently, Cook amended both his journal and chart to depict Stewart Island as a peninsula.He wrote in his Journal on 31 March 1770 that "Endeavour's" 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".On the same day he recorded his decision to set a course to return home by way of the yet unknown east coast of New Holland (as Australia was then called)