THE AUTHOR TO THE READER.
THIS volume having been written two years since, and being now printed as it then was written, the facts and figures here given as of the present, are those of 1856 — the anticipations of the future being, in like manner, those which the author held to be legitimate deductions from then existing facts. Many of them have since been verified, while others are in course of being so-all the phenomena of the eventful period that since has passed, being in precise accordance with the views here published.
PHILADELPHIA, September, 1858.