In such a summary as this it would be impossible to describe how each sub-race was further sub-divided into nations, each having its distinct type and characteristics. All that can be here attempted is to sketch in broad outline the varying political institutions throughout the great epochs of the race. While recognizing that each sub-race as well as each Root Race is destined to stand in some respects at a higher level than the one before it, the cyclic nature of the development must be…