The fish of the tableland differ greatly from those of the coast. In some of the inland lakes and permanent lagoons they are so fat as to be almost uneatable, and at times so plentiful and easily caught that the blackfellows scarcely trouble to get them, which is rarely the case elsewhere. The Australian native is a man with an unknown history whether he is an improvement on his remote ancestors or a degenerate descendant it is impossible to form any idea. Whoever they were they left nothing behind them, except this wandering savage, and he has neither traditions nor customs that tell us anything of the past. The language is a perfect confusion of tongues, and dialects, words of similar sound and meaning are often found in places hundreds of miles apart; in distinct tribes wherein the rest of the language is altogether different. Their physique does not differ greatly. Perhaps in the north an admixture of Malay blood gives a handsomer cast to the features in individual cases, but the Australian native is unmistakable wherever you meet him, north, south, east or west. The geological formation of Australia is, as is well-known very old, one third of the continent being desert sandstone with no marine fossils, but although, scantily supplied with water on the surface, there is little doubt of the immensity of the subterranean supply. Water has been struck by boring five hundred and seventy-two feet, and risen to within ten feet of the surface, and on the Kallara run at one hundred and forty-four, where it rose twenty-six feet above the surface. Water then, will probably be found almost anywhere at a depth of six hundred feet, and a vast portion of the lightly watered plains of the interior will be worked up to their fullest capabilities by means of boring. It is generally supposed that the first portion of Australia that rose above the sea was the south-east corner where the largest and probably the most active of our volcanoes existed; the rise of the whole continent which subsequently took place would have then left the interior a shallow inland sea, girt round with a broken chain of more or less active volcanoes. In time, these grew extinct, the sea evaporated and we were left with our present coast range, with its now lifeless peaks, and our depressed inland plateau, with its saline flats and lakes. PART I. CHAPTER I.