Of the essays in this volume, the introductory paper on "The Kinds of Criticism" has not before appeared in print. All the rest, with one exception (the Essay on Lockhart which appeared in the National Review), were originally published in Macmillan's Magazine. To the Editors and Publishers of both these periodicals I owe my best thanks for permission to reprint the articles. To the Editor of Macmillan's Magazine in particular (to whom, if dedications were not somewhat in ill odour, I should, in memory of friendship old and new, have dedicated the book), I am further indebted for suggesting several of the subjects as well as accepting the essays. These appear in the main as they appeared; but I have not scrupled to alter phrase or substance where it seemed desirable, and I have in a few places restored passages which had been sacrificed to the usual exigencies of space. In two cases, those of Lockhart and De Quincey, I have thought it best to discuss, in a brief appendix, some questions which have presented themselves since the original publications. In consequence of these alterations and additions as well as for other reasons, it may be convenient to give the dates and places of the original appearance of each essay. They are as follows:—

The present order is chronological, following the birth-years of the authors discussed.