THE first Edition of the following Work was printed in the end of the year 1775, and in the beginning of the year 1776. Through the greater part of the Book, therefore, whenever the present state of things is mentioned, it is to be understood of the state they were in, either about that time, or at some earlier period, during the time I was employed in writing the Book. To this third Edition, however, I have made several additions, particularly to the chapter upon Drawbacks, and to that upon Bounties; likewise a new chapter entitled, The Conclusion of the Mercantile System; and a new article to the chapter upon the expenses of the sovereign. In all these additions, the present state of things means always the state in which they were during the year 1783 and the beginning of the present year 1784.