“What is it?”

“The Murray at its mouth has a bar that is very difficult and dangerous to cross, and a large area at its entrance consists of shallow water. The mouth of the river, furthermore, is swept by southerly winds, which bring in great waves that have their origin in the neighborhood of the South Pole. Consequently it was concluded that the location of the city at the place with the largest entrance into the sea would not be advantageous, and a location on Spencer’s Gulf was considered preferable.”

“Very good reasons,” said Ned, “and I have no doubt that the founders of Adelaide acted wisely. They certainly have a very prosperous city where they are, although their seaport is several miles away.”

The train increased its speed as it descended the incline, and the youths found plenty of occupation and amusement in studying the scenery on each side of them, and noting the handsome residences of the merchants and other well-to-do inhabitants of Adelaide. The river was crossed by means of an iron bridge, a substantial structure which was evidently built to last. After crossing the Murray, the railway proceeded for awhile along its valley, and gradually left it to enter a region of long-continued monotony.

“For hours in succession,” said Harry in his journal, “we had little else but scrub. I imagine that when the surveyors laid out the railway line, they took their bearings by observation of the moon and stars, and laid it directly across from one side of the scrub country to the other. Scrub land is land covered with bushes. There are not many varieties of bushes, and this fact helps along the monotony. There is one bush that looks like an umbrella turned bottom upwards, and another that resembles an umbrella standing upright, as one holds it to keep off the rain. Then there are bushes and trees, some of them shaped like bottles, others like sugar loaves, and some like nothing else that I can think of at this moment. They vary from three or four feet in height up to fifteen and twenty feet, and sometimes we found them of a height of thirty feet or more.

“Mile after mile it is the same. I have heard what a terrible thing it is to be lost in the scrub. I can well understand that it is terrible, and can also understand how easily such a calamity could be brought about. One mile of scrub is exactly like another mile, or so very nearly like it that it is next to impossible to tell the difference. I have heard that people who stepped only a few yards from the side of the road have wandered for days before finding their way again, or have been sought for by many people before they were found. Many a man has lost his way in the scrub and never been heard of again, or perhaps years after his bones were discovered bleaching at the foot of a tree, where he had sat or lain down for his last rest when he could go no further.”

A portion of the road from Adelaide to Sydney is called “the ninety-mile desert,” in distinction from the rest of the scrub region. It was a great relief to any one to get out of this desert country, and reach the region of farms, and fences, cattle or sheep pastures, and cultivated fields. In some of the districts through which our travelers passed they saw great numbers of rabbits, and on calling attention to them, a gentleman who was in the railway carriage told them something about the rabbit pest from which the Australian colonies are suffering.

“If you want to make a fortune,” said the gentleman, “find some way for destroying the rabbits in Australia. There is a standing reward of twenty-five thousand pounds (one hundred and twenty-five thousand dollars of your money) for any method that proves successful. The reward is offered by the colony of New South Wales, and the other colonies will pay as much more.”

“Were there rabbits in this country when it was first discovered?” Harry asked.

“There were no rabbits here,” was the reply; “nor any animals like them. In 1851, a gentleman living near Dunedin, New Zealand, was on a visit to the old country, and it occurred to him that it would be a nice thing to have rabbits in New Zealand, so that they could amuse themselves by chasing the little creatures with dogs. On his return from England he brought seven rabbits, and they were the progenitors of all the rabbits in New Zealand, Australia, and Tasmania. For a few years, as fast as rabbits were obtainable they were distributed throughout the colonies, but it was not long before the distributors found out their mistake.