Under this modest title, the American public is presented with a work of uncommon research, and of great practical utility and value. Its author is well known as a skilful and most successful inventor, in whose admirable power-looms nearly all the carpets of the world are now woven. On the subject of manufactures few can speak with more authority, whether in reference to its general bearings or its minute details. The work before us affords ample proof of his ability to discuss one of the most important questions in political economy. The hundred pages of text are followed by two hundred and thirty-four pages of tabular statistics. This large and well-arranged body of invaluable information, though styled an appendix, was, in fact, the precursor of the argument, and constitutes the solid base on which it rests. These tables are "not mere copies or abstracts, but the result of labored and careful selection, comparison, and combination." In this treasury of facts, derived for the most part from official records, the commercial and industrial interests of the United States and of England, especially, are presented in all their most important aspects and relations. The amount of information here given is immense; and knowing, as we do, the scrupulous care of the collector, we cannot doubt its accuracy. Independently of its connection with the author's argument, this feature of the work cannot fail to give it value and a permanent place in every library, office, counting-room, and workshop of the country.