The old subjects, it appears, were re-engraved by Rowlandson's hand, with but slight variations from the originals. The outlines are somewhat less bold, and three new subjects are added; one being the frontispiece, which represents the worthy Doctor at his desk, seated in his armchair, in deep cogitation, touching his forehead as the idea of his famous _Picturesque Tour_ suggests itself to his brain. The window of his study is opened, that he may contemplate the exterior prospect at his ease, while a sketch, by his own hand, in India-ink, is displayed before him. Various papers and books are scattered about, with sundry objects which indicate his versatile accomplishments--a fiddle hung on the wall, books of travel, sheets of the Doctor's original treatise--_Every Man his own Farrier_--with a goodly jar of _cherry bounce_ to rejoice the learned man's spirits. On the titlepage is engraved a quaint vignette of architectural relics, ruins, a castle, &c., the detached monuments being disposed so as to form the word _Picturesque_. The third addition is plate 27, in the body of the Tour, introducing _The Doctor's Dream_ (in his patron's library) _of the Battle of the Books_, which was not included in the work on its original publication. This edition is preceded by an Introduction, which in some degree explains the relative positions--as far as the preparation of the work was concerned--of the artist and William Combe, the author, who thus sets the matter before his public: 'The following poem, if it may be allowed to deserve the name, was written under circumstances whose peculiarity may be thought to justify a communication of them. I undertook to give metrical illustrations of the prints with which Mr. Ackermann decorated the _Poetical Magazine_, a work published by him in monthly numbers, for the reception of original compositions. Many of these engravings were miscellaneous, and those (which were, indeed, the far greater part of them) whose description was submitted to such a muse as mine represented views of interesting objects and beautiful scenery, or were occasional decorations appropriate to the work. Those designs, to which this volume is so greatly indebted, I was informed, would follow in a _series_, and it was proposed to me to shape out a story from them. An etching, or a drawing, was accordingly sent to me every month, and I composed a certain proportion of verse, in which, of course, the subject of the design was included; the rest depended on what my imagination could furnish. When the first print was sent to me I did not know what would be the subject of the second; and in this manner, in a great measure, the artist continued designing, and I continued writing, every month for two years, till a work containing near ten thousand lines was produced; the artist and the writer having no personal communication with or knowledge of each other....