This plea is offered in defence of the text of a volume which, although cut down from its intended size, and all too large, is yet but a rough sketch. Collectors of all sorts know the various stages which their separate hobbies impose on them. First, out of pure love for their subject, they gather together chance specimens almost at haphazard. Then, moved by an ever-growing interest, they take the pursuit more seriously, and, as one by one the worthier objects fall into their hands, they grow still more keen. Later, they discover to their sorrow that a complete collection is, humanly speaking, impossible: certain unique examples are not to be obtained for love or money, or, at all events, for the amount at their personal disposal. At last they realise, perhaps, that after all the cheapest and most easily procured are also the most admirable and delightful. This awakening comes often enough when a catalogue has been prepared, and on looking over it they find that the treasures they valued at one time most highly are only so estimated by fellow-collectors; then they realise that the more common objects which fall within the reach of every one are by far the best worth possessing. A homely American phrase (and the word homely applies in a double sense) runs: 'He has bitten off more than he can chew.' The truth of the remark is found appropriate as I write these final words. To mark, learn, and inwardly digest the output of ten to fifteen years' illustration must needs be predestined failure, if space and time for its preparation are both limited. The subject has hitherto been almost untouched, and when in certain aspects it has attracted writers, they have approached it almost always from the standpoint of artistic appreciation and criticism. Here, despite certain unintentional lapses into that nobler path, the intention has been to keep strictly to a catalogue of published facts and with a few bibliographical notes added. Setting out with a magnificent scheme--to present an iconography of the work of every artist of the first rank--the piles of manuscript devoted to this comprehensive task which are at my side prove the impracticability of the enterprise. To annotate the work of Sir John Gilbert or Mr. Birket Foster would require for each a volume the size of this. But as _Punch_, _The Illustrated London News_, and the Moxon _Tennyson_ have already been the subject of separate monographs, no doubt in future years each branch of the subject that may be worth treating exhaustively will supply material for other monographs. The chief disappointment in preparing a reference-book of this class belongs to the first compiler only; the rest have the joy of exposing his shortcomings and correcting his errors, combined with the pleasure of indulging in that captious criticism which any overheard dialogue in the streets shows to be the staple of English conversation. GLEESON WHITE.