[238] On the three systems of kinship see POST, _Familienrecht_, 6 ff.
Though the "filial and fraternal affections may be instinctive," they are "obviously independent of any theory of kinship, its origin or consequences; they are distinct from the perception of the unity of blood upon which kinship depends; and they may have existed long before kinship became an object of thought." Such a group may have been held together chiefly "by the feeling of kindred;" but the "apparent bond of fellowship ... would be that they and theirs had always been companions in war or the chase--joint-tenants of the same cave or grove."[239] Slowly the idea of blood-relationship arose; and eventually observation led to a recognition of the system of kinship through the mother. Further than this, so long as paternity remained uncertain, primitive men could not go. For the theory in question, therefore, the maternal system of kinship existing in the homogeneous "group-stock" is the social fact of fundamental importance. But primitive man was rude, ignorant, relatively helpless. "Before the invention of the arts, and the formation of provident habits, the struggle for existence must often have become very serious. The instincts of self-preservation, therefore, must have frequently predominated." Society would tend toward one common type in which there was little place for the "unselfish affections." In this "struggle for food and security" the balance of the sexes would be disturbed. "As braves and hunters were required and valued, it would be to the interest of every horde to rear, when possible, its healthy male children." The weaker sex must obey the cruel law requiring the "survival of the fittest." Hence arose the common, perhaps general, practice of female infanticide.[240] The result of this disturbance of the balance of the sexes, caused by female infanticide, was a series of customs or phenomena of great sociological interest, requiring notice in the order in which they are supposed to have arisen.
[240] _Ibid._, 90, 91, 75-77; II, 77-80. After the appearance of totem groups, infanticide would be checked by the blood-feud: _ibid._, I, 145.
1. The natural consequence of the diminution in the number of women was to enhance their relative importance. Every woman would now have several wooers. Rivalry was fierce and "unrestrained by any sense of delicacy from a copartnery in sexual enjoyments." Quarrels and divisions within the horde would be of frequent occurrence. "These were the first wars for women, and they went to form the habits which established exogamy." But, if complete social disintegration would be avoided, self-preservation required a compromise. A rearrangement in smaller hordes took place; and so "we arrive at last at groups within which harmony was maintained through indifference and promiscuity;" where women, "like other goods," were held in common; and "children, while attached to mothers," belonged to the horde.[241] We have reached in fact, as the first result of female infanticide, the "totem _gens_" or group of totem kindred, having a common name, taken from some plant, heavenly body, or animal, whose image is sometimes tattooed upon their bodies, and which is sometimes revered as an ancestor, sometimes as an ancestral god.[242]