The witchetty grub _intichiuma_ ceremony (64, 170-179) is performed at a special cave, where lies a large block of quartzite surrounded by small rounded stones. The former represents the perfect insect, and the latter its eggs. The headman and his associates tap the large stone and chant songs, the burden of which is an invitation to the insect to lay eggs; the headman strikes each man with one of the small stones, saying, ‘You have eaten much food.’ Later they go to a large rock which they tap, and invite the animal to come from all directions and lay eggs. After various symbolic ceremonies they enter a long narrow booth made of bushes, which represents the chrysalis case from which the perfect insect emerges, and there they sing of the animal in its various stages and of the sacred stones. There are many similar ceremonies which the men of a totem group make in order to increase or produce their particular totem; thus, taking the tribe as a whole, the object of these ceremonies is that of increasing the total food supply (64, 315-319). Among the Arunta and Ilpirra only the men of the totem are allowed to be present or to take part in the actual ceremony. During its progress there is always some ceremony, such as that of allowing the blood of young men of the totem to flow over the stone which is associated with the ancestors of the totem. The idea of this is to send the spirits of the animals out of the stone to replenish the stock of the totemic animal. After the ceremony, when, as a consequence, the animal or plant has become abundant, the men of all classes and totems go out and bring supplies into the main camp. No one as yet may eat it. The headman of the totem, in the presence of all in camp, solemnly eats a little and hands the remainder over to the men of the other totems, telling them to eat freely. If the headman did not eat a little he would lose the power of performing _intichiuma_ successfully. In other tribes to the north similar ceremonies exist, but they are less elaborate and sometimes of the simplest description. The headman of the white cockatoo totem group and his son spent the whole of one night ‘singing’ the cockatoo. In the Wara tribe on the shore of the Gulf of Carpentaria a man of the rain-group goes to a pool, and, taking care that no women or strangers are in sight, bends down over and ‘sings’ the water; then he takes some up in his hands, drinks it, and spits it out in various directions. After that he throws water all over himself, and after scattering some all round he returns quietly to his camp, and rain is supposed to follow (64, 314). There is very little difference between this act and ordinary individual magic, the essential distinction being that the man in this case makes rain by virtue of rain being his totem, it being a function of human male members of the totem group to increase their totem.