Before Flinders reached Kangaroo Island, he had, in this painstaking manner, discovered and mapped the stretch of coast westward from the head of the Great Australian Bight, charted all the islands, and, by following the two large gulfs, Spencer's and St. Vincent's, to their extremities, had shattered the theory commonly favoured by geographers before his time, that a passage would be found cleaving the continent from the Gulf of Carpentaria to the Strait which George Bass had discovered in 1798.* (* Pinkerton, in his Modern Geography (1807) volume 2 588, published after Flinders had made his principal discoveries, but before the results were known, reflected the general opinion in the passage: "Some suppose that this extensive region, when more thoroughly investigated, will be found to consist of two or three vast islands, intersected by narrow seas." The Committee of the Institute of France, which drew up the instructions for the expedition commanded by Baudin, directed him to search for a supposed strait dividing Australia longitudinally into "two great and nearly equal islands" (Peron, Voyage de Decouvertes aux Terres Australes 1 5). With these passages may be compared the following from Kerr's General History and Collection of Voyages and Travels, published in 1824, ten years after the appearance of Flinders' book: "There are few voyages from which more important accessions to geographical knowledge have been derived than from this voyage of Captain Flinders, especially when we reflect on the great probability that New Holland...[observe that Kerr had not adopted the name Australia, which Flinders suggested only in a footnote] will soon rank high in population and wealth. Before his voyage it was doubtful whether New Holland was not divided into two great islands, by a strait passing between Bass Straits and the Gulf of Carpentaria. Captain Flinders has put an end to all doubts on this point. He examined the coast in the closest and most accurate manner; he found, indeed, two great openings; these he sailed up to their termination; and consequently, as there were no other openings, and these were mere inlets, New Holland can no longer be supposed to be divided into two great islands. It must be regarded as forming one very large one; or rather, from its immense size, a species of continent" (Kerr 18 462).)