In presenting the following humble attempt at history-writing to the reader, I am selfish enough to admit a preference for his tender mercy rather than for his critical judgment. I would ask him to remember that there are many almost insurmountable difficulties to be faced in the accomplishment of a work like this, and a narrowed space adds to rather than diminishes from their antagonistic power.<br><br>When the work was first proposed to me, it was imagined that the subject could be fully disposed of in less than five hundred pages. I have already gone considerably over that number, and feel that the chaise of incompleteness may still be brought against the book. But I also feel that if I had extended it to five thousand pages, the charge could still have been made, for with such a subject actual exhaustion cannot be expected; and so, despite the great quantity of unused material I have yet by me, I must rest satisfied with what I have done. I trust the reader will be satisfied also.