Originally published in 1895. Introduction: The discussion of international trade has always excited much interest, and must, for a long time, still command the attention of all thoughtful citizens. A great variety of arguments has been presented to the public and many off them are already fully discussed. Yet there seems to be a place and an opportunity at the present time for a new discussion of this important problem upon a more fundamental basis than is usually found in former treatises. We do not now need new facts so much as a discussion of the relation of these facts to one another, and the bearing of all this class of facts upon economic doctrine. Above all, we need a discussion on a purely economic basis.........Many of the earliest books, particularly those dating back to the 1900's and before, are now extremely scarce and increasingly expensive. We are republishing these classic works in affordable, high quality, modern editions, using the original text and artwork.