There are few things of which I have occasion to advertize the reader, before he enters upon the perusal of the following work.My object has been to compose a school-book of Political Economy, to detach the essential principles of the science from all extraneous topics, to state the propositions clearly and in their logical order, and to subjoin its demonstration to each. I am, myself, persuaded, that nothing more is necessary for understanding every part of the book, than to read it with attention; such attention as persons of either sex, of ordinary understanding, are capable of bestowing. [From the Preface]