nary principle upon which a defence, or at least a rationale, of slavery could be plausibly founded. Very early in their history the Greeks explained the institution as grounded on the intellectual inferiority of certain races and their consequent natural aptitude for the servile condition. The Romans, in a spirit equally characteristic, derived it from a supposed agreement between the victor and the vanquished in which the first stipulated for the perpetual services of his foe; and the other gained in consideration the life which he had legitimately forfeited. Such theories were not only unsound but plainly unequal to the case for which they affected to account. Still they exercised powerful influence in many ways. They satisfied the conscience of the Master. They perpetuated and probably increased the debasement of the Slave. And they naturally tended to put out of sight the relation in which servitude had originally stood to the rest of the domestic system. The relation, though not clearly exhibited, is casually indicated in many parts of primitive law; and more particularly in the typical system—that of ancient Rome.
Much industry and some learning have been bestowed in the United States of America on the question whether the Slave was in the early stages of society a recognised member of the Family. There is a sense in which an affirmative answer must certainly
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