on an average inhabited planet by observing the remnants of these early races on your world.

In the early days of racial development there is a slight tendency for the red, the yellow, and the blue men to interbreed; there is a similar tendency for the orange, green, and indigo races to intermingle.

The more backward humans are usually employed as laborers by the more progressive races. This accounts for the origin of slavery on the planets during the early ages. The orange men are usually subdued by the red and reduced to the status of servants—sometimes exterminated. The yellow and red men often fraternize, but not always. The yellow race usually enslaves the green, while the blue man subdues the indigo. These races of primitive men think no more of utilizing the services of their backward fellows in compulsory labor than Urantians would of buying and selling horses and cattle.

On most normal worlds involuntary servitude does not survive the dispensation of the Planetary Prince, although mental defectives and social delinquents are often still compelled to perform involuntary labor. But on all normal spheres this sort of primitive slavery is abolished soon after the arrival of the imported violet or Adamic race.

These six evolutionary races are destined to be blended and exalted by amalgamation with the progeny of the Adamic uplifters. But before these peoples are blended, the inferior and unfit are largely eliminated. The Planetary Prince and the Material Son, with other suitable planetary authorities, pass upon the fitness of the reproducing strains. The difficulty of executing such a radical program on Urantia consists in the absence of competent judges to pass upon the biologic fitness or unfitness of the individuals of your world races. Notwithstanding this obstacle, it seems that you ought to be able to agree upon the biologic disfellowshiping of your more markedly unfit, defective, degenerate, and antisocial stocks.

When a Planetary Adam and Eve arrive on an inhabited world, they have been fully instructed by their superiors as to the best way to effect the improvement of the existing races of intelligent beings. The plan of procedure is not uniform; much is left to the judgment of the ministering pair, and mistakes are not infrequent, especially on disordered, insurrectionary worlds, such as Urantia.

Usually the violet peoples do not begin to amalgamate with the planetary natives until their own group numbers over one million. But in the meantime the staff of the Planetary Prince proclaims that the children of the Gods have come down, as it were, to be one with the races of men; and the people eagerly look forward to the day when announcement will be made that those who have qualified as belonging to the superior racial strains may proceed to the Garden of Eden and be there chosen by the sons and daughters of Adam as the evolutionary fathers and mothers of the new and blended order of mankind.

On normal worlds the Planetary Adam and Eve never mate with the evolutionary races. This work of biologic betterment is a function of the Adamic progeny. But these Adamites do not go out among the races; the prince's staff bring to the Garden of Eden the superior men and women for voluntary mating