That part of the southern coast of Australia lying between Cape Leeuwin and Fowler Bay, in the Bight, had been explored prior to Flinders' time, partly by Captain George Vancouver, one of Cook's men, in 1791, and partly in 1792 by the French commander, Bruni Dentrecasteaux, who was despatched in search of the gallant La Perouse--"vanished trackless into blue immensity."* (* Carlyle, French Revolution book 2 cap 5.) Flinders carefully revised what they had done, commencing his elaborate, independent survey immediately after the Investigator made the Leeuwin, on December 6, 1801. He had therefore been just four months in this region, when he left his anchorage at Kangaroo Island--four months of incessant daily and nightly labour diligently directed to the task in hand. Always generous in his praise of good work, he paid a warm tribute to the quality of the charts prepared by Beautemps Beaupre, "geographical engineer" of La Recherche, Dentrecasteaux's corvette. "Perhaps no chart of a coast so little known as this is, will bear a comparison with its original better than this of M. Beaupre," he said; and though he put forward his own as being fuller in detail and more accurate, he was careful to point out that he made no claim for superior workmanship, and that, indeed, he would have been open to reproach if, after having followed the coast with Beaupre's chart in hand, he had not effected improvements where circumstances did not permit his predecessor to make so close an examination. It is an attractive characteristic of Flinders, that he never missed an opportunity of appreciating valuable service in other navigators.