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72 The testimony of the map may be augmented by a reference to what geographical writers understood about Australia before the time of Flinders.

Though Cook had discovered the east coast, and named it New South Wales, it was not definitely known whether this extensive stretch of country was separate from the western "New Holland" which the Dutch had named, or whether the two were the extremities of one vast tract of land. Geographical opinion rather inclined to the view that ultimately a strait would be found dividing the region into islands. This idea is mentioned by Pinkerton. Under the heading "New Holland" he wrote: "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, an idea which probably arises from the discovery that New Zealand consists of two islands, and that other straits have been found to divide lands in this quarter formerly supposed to be continuous." The discovery that Bass Strait divided Australia from Tasmania was probably in Pinkerton's mind; he mentions it in his text (quoting Flinders), though his map does not indicate the Strait's existence. He also mentions "a vast bay with an isle," possibly Kangaroo Island.

Perhaps it was not unnatural that competent opinion should have favoured the idea that there were several large islands, rather than one immense continent stretching into thirty degrees of latitude and forty-five of longitude. The human mind is not generally disposed to grasp very big things all at once. Indeed, in the light of fuller knowledge, one is disposed to admire the caution of these geographers, whose beliefs were carefully reasoned but erroneous, in face of, for instance, such a wild ebullition of venturesome theory as that