3. The function of the totem clan consists of carrying out a ceremony which in a subtle magic manner brings about an increase of the edible totem. (This ceremony is called _Intichiuma_.) 4. The Aruntas have a peculiar theory about conception and re-birth. They assume that the spirits of the dead who belonged to their totem wait for their re-birth in definite localities and penetrate into the bodies of the women who pass such a spot. When a child is born the mother states at which spirit abode she thinks she conceived her child. This determines the totem of the child. It is further assumed that the spirits (of the dead as well as of the re-born) are bound to peculiar stone amulets, called _Churinga_, which are found in these places. Two factors seem to have induced Frazer to believe that the oldest form of totemism had been found in the institution of the Aruntas. In the first place the existence of certain myths which assert that the ancestors of the Aruntas always lived on their totem animal, and that they married no other women except those of their own totem. Secondly, the apparent disregard of the sexual act in their theory of conception. People who have not yet realized that conception was the result of the sexual act might well be considered the most backward and primitive people living to-day. Frazer, in having recourse to the _Intichiuma_ ceremony to explain totemism, suddenly saw the totemic system in a totally different light as a thoroughly practical organization for accomplishing the most natural needs of man. (Compare Haddon above[160].) The system was simply an extraordinary piece of ‘co-operative magic’. Primitive men formed what might be called a magic production and consumption club. Each totem clan undertook to see to the cleanliness of a certain article of food. If it were a question of inedible totems like harmful animals, rain, wind, or similar objects, it was the duty of the totem clan to dominate this part of nature and to ward off its injuriousness. The efforts of each clan were for the good of all the others. As the clan could not eat its totem or could eat only a very little of it, it furnished this valuable product for the rest and was in turn furnished with what these had to take care of as their social totem duty. In the light of this interpretation furnished by the _Intichiuma_ ceremony, it appeared to Frazer as if the prohibition against eating the totem had misled observers to neglect the more important side of the relation, namely the commandment to supply as much as possible of the edible totem for the needs of others.