Papuan immigrations and by race-mixture. But influences of this kind are the less apt to lead to the submergence of primitive views and customs according as they are instrumental, particularly when they are operative at an early age, in maintaining conditions which might otherwise possibly disappear as a result of further development. The _second_ mode of classifying the forms of totemism is based on the _objects_ which are used as totems and leads to an essentially different analysis of totem beliefs. Each of the forms which the classification distinguishes is, of course, also subsumable under one of the kinds of totemism already discussed. The earliest totem objects, as has already been mentioned, are without doubt _animals_. In America, as in Australia, there are practically no totems except animals; in other places also it is the animal that plays the principal rôle in totemic mythology. In part, the animal continues to remain predominant even after the age of actual totemism has passed. Nevertheless, _plant totemism_ has found its way into certain regions. Here also the facts are most clearly traceable in Australia, our most important source of information regarding the history of the development of totemic ideas. In southern Australia, there are no totems except animals; towards the north, plant totems gradually begin to make their appearance, until finally, among the most northerly peoples of central Australia, such totems have the dominance. Plant totems, moreover, are also found particularly in Melanesia, from which place they might easily have come to Australia across the chain of islands which extends from New Guinea to the north coast of the island-continent. That plants play an unusually large rôle in the regions of Oceania, in connection with totemism as well as otherwise, is directly due to external conditions. These islands are poor in fauna; true, they possess great numbers of birds, but these are of little value to the hunter. On the other hand, they have a luxuriant flora. From early times on, therefore, it is chiefly the plant world that has been the centre of interest and that has left its stamp upon myth and custom. Clearly, plant totemism had its origin on these islands. From them it was introduced into Australia, where it combined with animal totemism. But the regions into which plant totemism was introduced underwent a great change in their totemic cults. It is probably only with the appearance of plant totems that those cult ceremonies arose which are celebrated, not, as the festivals of tribal totemism originally were, mainly at the adolescence of youths, but primarily for the sake of effecting a _multiplication of the totems_. Annually, at stated times, the members of allied clans unite in magical ceremonies and cult dances, the well-known 'corroborees,' as they are called by those who practise them. The primary aim of such cults is to bring about by magical means an increase of the totem plants and animals.