Starting without preconceptions, the writer has been constrained to the views set forth in Chapters X and XI in regard to the real meaning and importance of the underground movement. And if it be found by the reader that these views are in any measure novel, it is hoped that the pages of this book contain evidence sufficient for their justification. There is something mysterious and inexplicable about the whole anti-slavery movement in the United States, as its history is generally recounted. According to the accepted view the anti-slavery movement of the thirties and the later decades has been considered as altogether distinct from the earlier abolition period in our history, both in principle and external features, and as separated from it by a considerable interval of time. The earlier movement is supposed to have died a natural death, and the later to have sprung into full life and vigor with the appearance of Garrison and the _Liberator_. Issue is made with this view in the following pages, where Macaulay's rational account of revolutions in general may, perhaps, be thought to find illustration. Macaulay says in one of his essays: "As the history of states is generally written, the greatest and most momentous revolutions seem to come upon them like supernatural inflictions, without warning or cause. But the fact is, that such revolutions are almost always the consequences of moral changes, which have gradually passed on the mass of the community, and which ordinarily proceed far before their progress is indicated by any public measure. An intimate knowledge of the domestic history of nations is therefore absolutely necessary to the prognosis of political events." Or, the essayist might have added, to a subsequent understanding of them.