BOOK-KEEPING. A variety of preliminary Problems, Cases, &c. referred to by the letters and numbers which the reader will observe subjoined to the examples in the Waste-book, were by accident omitted in the printing; but will be printed and given in proper time, with directions for inserting them. —So that this and the preceding article may be expunged from this list when the book is bound.

It is humbly hoped, that the above faults, with others which may have escaped notice, or are here omitted as trivial, will be candidly deemed venial in a work so complex, so various, and so extensive as the present.