[22] The "totem" system is explained in my work on the _Pioneers of Canada_. The totem was some animal, plant, or natural object chosen as the imaginary ancestor or symbol of the clan. The Australoids when first discovered were a degree or two farther advanced than the "Eolithic"[23] Tasmanians. They were, in effect, in a "Palæolithic" stage of culture, similar to that of Europe some fifty thousand years ago. Their weapons and utensils were made of wood, stone, and bone. They did not know the bow and arrow, but used a rather elaborate wooden rest for throwing their spears with greater force than by the unaided arm. The spearhead was either of finely pointed hard wood, carved with notched barbs, or it was a separate piece from the haft and made of stone, bone, or shell, tied strongly on to the haft, and further fastened by resinous gum. This gum from the Eucalyptus trees was very useful for attaching the blades of stone axes and knives to their handles. [23] "Neolithic" means the age or stage of highly finished stone weapons and implements, "Palæolithic" refers to an earlier period when the stones were very roughly shaped, and "Eolithic" means the very dawn of culture, when the stones were merely broken fragments, not artificially shaped at all. But the Australoids were specially celebrated for two things: their "bull-roarers" and their "boomerangs". The bull-roarer was a carved and flattened piece of wood or stone something in the shape of an axe blade. At the narrow end of this implement (which had a sacred character, as it was usually inscribed or painted with the "crest" or device of the clan's totem) were indentations, to which a piece of fibre string or strip of hide could be tied. The "churinga" (as it was called in south-east Australia) was then whirled round and round in the air till it made a loud booming noise. This the women were persuaded was the voice of a spirit, and only youths after their initiation, or full-grown men, were in the secret. [All over the world of savagery in ancient times, and in the few places where savages now remain, women have been very easily "gammoned", and have been made to believe much nonsense which the men invented to scare them and keep them in submission.] The boomerang was a wooden throwing stick, very thin and flat, and curved or crooked in the middle. Although more or less fiat in surface, it nevertheless had a slight twist, a little like the plane of a bird's wing. Hurled flat-wise through the air it was a very effective weapon; and some kinds, if they did not hit the object aimed at, would return and fall near the place from which they had been thrown. But both boomerang and bull-roarer, though they seemed very novel and unusual to the early pioneers in Australian discovery, were really not peculiar to this savage people. They have existed in many parts of Negro Africa, and even anciently in Europe, India, and in Egypt.