Mr. Lang rejects Mr. Frazer's theory _in toto_, and propounds his own as due to the naming of savage societies, and to a sort of natural exogamy produced by practically the same set of conditions as I have already described. Mr. Lang's totemism began in the primary groups, and began with exogamy as a necessary part of it. "Unessential to my system," says Mr. Lang, "is the question how the groups got animal names, as long as they got them, and did not remember how they got them, and as long as the names according to their way of thinking indicated an essential and mystic rapport between each group and its name-giving animal. No more than these three things--a group animal name of unknown origin; belief in a transcendental connection between all bearers human and bestial of the same name; and belief in the blood superstitions (the mystically sacred quality of the blood as life)--was needed to give rise to all the totemic creeds and practices including exogamy," and further, "we guess that for the sake of distinction, groups gave each other animal and plant names. These became stereotyped we conjecture, and their origin was forgotten. The belief that there must necessarily be some connection between animals and men of the same names led to speculation about the nature of the connection. The usual reply to the question was that the men and animals of the same name were akin by blood. The kinship _with animals_ being particularly mysterious was peculiarly sacred. From these ideas arose tabus, and among others that of totemic exogamy."[357] Mr. Baldwin Spencer, and with him Dr. Haddon, consider totemism to have arisen from economic conditions. Primitive human groups, says Dr. Haddon, "could never have been large, and the individuals comprising each group must have been closely related. In favourable areas each group would have a tendency to occupy a restricted range, owing to the disagreeable results which arose from encroaching on the territory over which another group wandered. Thus, it would inevitably come about that a certain animal or plant, or group of animals or plants, would be more abundant in the territory of one group than in that of another."[358]