Each man had as many wives as he could obtain. He did not support them, but they supported him, and when children became too numerous he lessened his family by killing off a few. More than half the children were thus destroyed. Their enjoyments consisted of games with a kind of ball, and mock-fights, but especially in a wild dance they called the corrobboree. They were in general good-humoured when things went pleasantly; but a man would spear his wife through the leg or dash his child's brains out readily enough when things were not to his taste, and nobody would think any the worse of him for it. CHAPTER XVII. EXPLORATIONS IN THE INTERIOR, 1840-1860. #1. Progress of Exploration.#--The coasts of Australia had all been examined before the year 1815. From that date those who wished to make fresh discoveries were obliged to penetrate into the interior; and we have already seen that, previous to the year 1836, explorers were busy in opening up the south-east portion of the continent. Oxley had made known the northern districts of New South Wales, and Allan Cunningham the southern part of what is now the colony of Queensland. Hume and Hovell, Sturt and Mitchell, had traversed the southern districts of New South Wales and the territory now occupied by Victoria. Following closely in the footsteps of these intrepid discoverers, the squatters had entered all these districts, and, wherever the land was suitable, had settled down with their flocks; so that, ere long, all that corner of Australia which would be cut off by drawing a straight line from Brisbane to Adelaide was fully surveyed. But there still remained to be explored about seven-eighths of the continent; and from this date onward there was an unbroken succession of adventurous travellers, who entered the vast central territory for the purpose of making known its nature and capacities. But the manner of conducting an expedition was now very different from what it had been. Previous explorers had been provided with parties of convicts, and had traversed lands for the greater part grassy and well watered. These expeditions had their dangers, arising chiefly from the hostility of the blacks; and Allan Cunningham, his brother Richard, with many others, sacrificed their lives in their ardour for discovery. But subsequent travellers had to encounter, in addition, the pangs of hunger and thirst in that dry and desolate country which occupies so great a portion of Central Australia.