The houses of the Australoids were rough shelters of sticks, fronds, and grass. In warm weather the natives did not bother to put up huts, but slept with their feet towards the fire and their heads against a low wind screen of boughs and grass. The aborigines of Australia had some gift for painting and drawing objects, and had even invented a rough alphabet of symbolic signs or primitive writing, with which they marked their "message sticks" or churingas. These message sticks, in fact, were the germ of letters. Finally, it might be mentioned that, even when first discovered, Australia--an island continent of 2,946,691 square miles--was very sparsely inhabited, and the bulk of the population was confined to the districts near the seacoast. If there are, as is sometimes computed, one hundred thousand aborigines still living in Australia at the present day, there were probably not more than double that number a hundred years ago. They did much to limit their own increase by killing or abandoning their children; they were often engaged in civil wars; in times of scarcity they turned cannibal. What, however, is so remarkable about this isolated people is their having gone on living with very little change or improvement in the life which was that of our ancestors fifty thousand years ago. While the races of Europe and northern Asia have tried so many experiments, have achieved so many conquests over nature, have had such a marvellous insight into the workings of the universe--have, in fact, for ten thousand years or so, been leading the lives of demigods, the Tasmanians and the Australoids have been content just with the day's provision of food, a fairly dry sleeping place at night, a little fighting and dancing, lovemaking of a more or less brutal kind, and a span of life which, owing to its excessive hardships and the callous if not cruel treatment of the men and women past their prime, was seldom more than fifty years. They have, it is true, seen God in the stars, and they have felt like us the tragedy of death and the hope of a resurrection; but, unlike us (their far-off cousins, whose "Tasmanian" and "Australoid" ancestors stayed in Europe), they achieved no conquest over nature, their lives were scarcely better than the lives of beasts.