"When the following Work was first published in America, in 1837, it was but little known, and seemed to meet with little or no encouragement. Months passed away, and very few copies were sold or read. But, to the astonishment of the au-thor, it worked itself into notice more and more, by the blessing of God, and by virtue of its own real merits; till, in two years, the first edition, con-sisting of three thousand copies, was all sold, and many more were called for. A new edition was published in 1839, consisting of two thousand five hundred copies; these were also disposed of. Other three editions have since been published, making in all thirteen thousand copies now dis-posed of, and the demand is still increasing both in America and Europe."