South Australia should rather be called Central Australia, for it lies half-way between the western and the eastern seaboard, and the colony runs right through the continent from north to south. It is an enormous tract, 2,000 miles in length and 700 in breadth. The total area is 903,000 square miles, of which at present barely a tenth is in occupation, though exploration has already made known the existence of millions of acres of magnificent pasture-land ready for settlement. In the colonies, when you speak of South Australia, you are understood to mean the district of which Adelaide is the centre. If you referred to the inland portion, you would speak of the 'far north;' and again, if you meant the Port Darwin--Gulf of Carpentaria country--you would use the term 'Northern Territory.' The original South Australia is first to be noticed. [Illustration: WATERFALL GULLY, SOUTH AUSTRALIA.] No part of Australia is more strongly marked with Australian peculiarities than this. The Murray is the only river, and this stream brings down the waters of the ranges of the south-eastern colonies; the other streams are merely courses in which, under favourable conditions, water may be looked for, and not otherwise. The ranges are few in number, and are of no great elevation. But the grass plains and the scrub plains are immense. Gazing round from an eminence, the impression produced by the equal height of the vegetation, and the dull glaucous colour of the foliage, is that you are looking upon the open rolling illimitable ocean. South Australia contains whole principalities of the ordinary park-like bush of Australia; the eucalypts standing in grass without any undergrowth, either singly or in clumps, as though planted by a landscape gardener. If an expert were whisked during his sleep--like another Bedreddin Hassan--and dropped from Europe, Asia, Africa or America anywhere in these regions, he would exclaim the moment he opened his eyes--''Tis Australia.' A glance at the map would lead to the conclusion that the colony is well supplied with lakes. On paper, Lake Torrens, Lake Eyre, Lake Gardiner, Lake Amadeus, cover large areas, but unfortunately an antipodean meaning must be attached to the term; for the most part these lakes are either muddy reed-covered swamps, or salt marshes unfitted for navigation in winter, and evaporating into vast glittering clay pans in summer. The level of several of these extensive depressions is believed to be below that of the sea, and the cutting of a canal to unite them to Spencer's Gulf, the deepest indentation on the southern coast, has been suggested, and will probably some day be carried into effect, and then there may be changes worked in the climate. [Illustration: A MURRAY RIVER BOAT.]