to modification from this source.

The question of the suppression of the slave-trade is so intimately
connected with the questions as to its rise, the system of American
slavery, and the whole colonial policy of the eighteenth century, that
it is difficult to isolate it, and at the same time to avoid
superficiality on the one hand, and unscientific narrowness of view on
the other. While I could not hope entirely to overcome such a
difficulty, I nevertheless trust that I have succeeded in rendering this
monograph a small contribution to the scientific study of slavery and
the American Negro.

I desire to express my obligation to Dr. Albert Bushnell Hart, of
Harvard University, at whose suggestion I began this work and by whose
kind aid and encouragement I have brought it to a close; also I have to
thank the trustees of the John F. Slater Fund, whose appointment made it
possible to test the conclusions of this study by the general principles
laid down in German universities.

W.E. BURGHARDT DU BOIS.

WILBERFORCE UNIVERSITY,
March, 1896.

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