The population of the whole of South Australia is now about 318,000, that of Adelaide and its suburbs being about 70,000. Adelaide is not only by far the largest town, but almost the only town of any size. The city is laid out with a regularity that is almost painful. It stands on a square mile of ground. At each side is a terrace, called respectively North, South, East, and West Terrace. There are squares laid out at regular intervals. As is usual in Australian towns, the streets are all at right angles, and generally of the same length and width. The Adelaide people claim to have the finest street in the Colonies, the finest post office, and the best hotel. King William Street is two chains wide--the widest streets in Melbourne are 1-1/2 chains--is a mile long, and contains the principal public buildings, the Town Hall, Post Office, Courts of Justice, &c. The Post Office is a handsome building, with a lofty tower, from which various signs are displayed notifying the arrival and departure of mails. At night the electric light from the top can be seen from a great distance. From King William Street start the various lines of tramway in every direction from the city. They run out to the various suburbs--Magill, Burnside, Kensington, Norwood, Stepney, &c., some of which names sound very familiar. The tramcars are as universally used as in Glasgow, and nowhere have I seen a better service than in Adelaide. It is a pleasant way to spend an afternoon, to ride outside a tramcar in the bright atmosphere, to some suburb, and return after a ramble in the country. From beyond the North Terrace is a capital view over the city. Perhaps the best is from the house of Mr. Way, the Chief Justice. His villa, at which I had the pleasure of visiting him, is one of the most complete I have seen. Nothing is omitted that the arts of civilization can supply. His library contains the choicest modern works. His garden is delicious with cool grottos and fountains. In his aviaries is a collection of the rare birds of the country, all of which he knows. In a separate cage are two fine eagles. Among the flowers I noticed the "Sturt Desert Pea," just then in blossom, the loveliest wild flower of Australia. I have seen houses larger and finer, no doubt, and better collections of particular objects, but never any place so perfect of its kind. Some lines from the "Palace of Art" involuntarily occurred to me, but to no man does the moral of Tennyson's poem less apply than to the Chief Justice, for he is one of the most sympathetic and kind-hearted of men. I had intended staying at the Adelaide Club, and was provided with an introduction, but found on arrival that all the bedrooms were occupied. Besides, visitors are liable to give up their bedrooms to members, and as at this time some races were going on, and the rooms consequently likely to continue occupied, it was better at once to put up at a hotel. This was the "York," which was a comfortable house, and not particularly dear. It is a favourite with visitors by the mail steamers, who often run up from Glenelg for the few hours the steamer calls there.