That a continent so suited to the abundant propagation of animal life should have been so poorly equipped by Nature with an indigenous fauna can only be accounted for by Australia's primeval isolation. Similar vast prairie lands, which in America sustained countless herds of bison and in Africa literally swarmed with antelope and many species of game, were in Australia almost uninhabited. The absence of large rivers and a general scarcity of water had doubtless much to do with this destitute condition of the great pasture lands of the interior, but still the wonder remains that a continent which now carries more sheep than any other country in the world should have been in its original state, except along its coastal belt, almost tenantless. The fierce carnivora of the older world were entirely unrepresented, the principal denizen of the lonely land being the timid kangaroo; but the curious problems presented by the Australian fauna have compensated the naturalist for its modest numbers. In Queensland what is recognised as the Western Interior occupies about half the area of the State and is distinct in its geological formation from the coastal belt, the waters of which run into the ocean to the east and north. The region of these watersheds, with the exception of some comparatively limited areas of downs country on the heads of the rivers, is regarded as unsuitable for sheep, the rainfall being more abundant than on the Western waters and the grass coarser, so that cattle are almost exclusively run there. In the Western Interior are the true sheep pastures. The farther one goes west the more treeless the country becomes. Here undulating downs for the most part stretch to the horizon, intersected by watercourses fringed with timber, and although in summer many of these creeks shrink to a chain of disconnected waterholes, few of which are permanent, they offer abundant opportunities for water conservation. In the last few years many for several miles of their course have been converted into running streams by artesian bores. Before, however, dwelling on the present position, we must briefly glance at the origin of pastoral enterprise in Australia and its tardy extension to Queensland.