But the bookman pointed out to him that when he died and his collection was sold his family would benefit by some pounds through his indiscretion; for it was now known to all his friends as a genuine English specimen. This troubled the entomologist greatly, for it was a point of view that had never occurred to him, and, like the rich young man, 'he went away grieved.'

So it is sometimes in book-collecting: there is a temptation to 'restore' an incomplete book. Should the collector find that his copy of a certain work lacks a portrait, what is more natural than to go to the print-shop and purchase a portrait of the same individual for insertion in his copy? And in this there may be little harm, provided that the book is of no value and that he makes a note in ink inside the front cover as to what he has done. But occasionally some unscrupulous book-fiend—he is, of course, no true book-collector—substitutes for a damaged page a page from another copy, or perhaps of a later edition; sometimes he supplies his volume with a spurious title-page or other leaf; and, worst of all, substitutes in his copy of the second edition, whereof the title-page is damaged, the title-page of a first edition, of which he possesses an incomplete copy.

And here let me utter a word of warning. Apparently it is the practice of certain cheap second-hand booksellers to abstract the engraved plates from folio books, occasionally also removing the 'List of Plates' that the theft may remain undiscovered, and to sell the works thus mutilated as sound and perfect copies. Needless to say to the print collector such plates are invariably worth a shilling or two apiece, if portraits considerably more. I know to my cost one London bookseller who habitually removes the engraved portraits with which certain seventeenth-century folios, especially historical ones, are wont to be embellished. How many rare volumes this ghoul has ruined it is impossible to say, probably some hundreds. Our book-hunter confesses to having been caught by him three times, discovering the reason for the cheapness of his bargains (!) some time later. A friend has also suffered from his attentions. I need hardly add that his shop is now avoided, by two book-hunters at least, as something unclean.

Occasionally, also, one comes across scarce volumes bereft of title-pages, these having been torn out by some vampire to adorn his scrapbook. Surely no fate can be too bad for the man who dismembers books. His proper place is certainly in the Inferno, where, in company with Bertrand de Born, he will be condemned for ever to carry his own head, after it has been separated from his body, in the shape of a lantern.[46]

As soon as ever you reach home with your purchases from a ramble along the bookstalls, and whenever you receive books that you have ordered through a bookseller's catalogue, collate your acquisitions carefully. Whenever it is possible refer to a bibliography to see that your copy is all that it should be. Nothing is more annoying than to discover, perhaps years afterwards, that your copy of a rare book, which you fondly imagined to be a fine one in every respect, lacks a page or so, or a leaf of index or errata, or a plate. It is a good plan to make a point of keeping books upon your table until they have been properly collated and catalogued, when—and not before—they may be placed upon the shelves.

Frequently you will discover that a second book, or even a third, has been bound up with your volume, and you would have overlooked these but for collating. It was a common practice at one time (as, indeed, it is with some collectors nowadays) to bind up thin books with thicker ones to save the expense of binding. Probably this is the reason why certain sixteenth and seventeenth century works which consist of but fifty or sixty leaves are so hard to find, being bound at the end of larger works and thus commonly escaping the cataloguer's eye.

It is necessary for the collector to exercise the greatest caution in acquiring a valuable old book from any but a reputable bookseller. The fabrication of a page or so—especially a title-page—is a comparatively small matter to the nefarious dealer who hopes by this means to obtain for his copy the price which a perfect one would command. 'Perfect' copies of rare fifteenth-century works are made up from two or more imperfect ones, title-pages and leaves are reproduced in facsimile, blank leaves and engravings are inserted: for all these the collector must be continually upon his guard. Other books there are which have certain passages frequently mutilated, or a genealogical tree or a table generally missing.

Hazlitt gives two examples of this species of knavery. One, in which a reproduction of the scarce portrait of Milton usually attached to the first edition of his 'Poems,' 1645, had been actually split and laid down on old paper to make it resemble the original print: the other, a case in which a copy of Lovelace's 'Lucasta,' 1649, lacked a plate representing Lucy Sacheverell (which makes a good deal of the value of the book), and a copy of the modern reproduction of this plate to be found in Singer's 'Select Poets' had been soaked off and 'lined' to give it the appearance of a genuine impression mounted, and then bound in.

And these mutilations are not the only things of which the collector must beware. Early in the history of books, the reputation that hall-marked the publications of certain famous presses became a source of envy to less fortunate printers. Type and imprints were soon counterfeited, and the fine editions of the Classics printed at Venice by the great Aldine press were reproduced at Lyons and elsewhere. In this matter of forgery and pirated reprints, you will find Gustave Brunet's 'Imprimeurs Imaginaires et Libraires Supposés' of value. It is a catalogue of books printed with fictitious indication of place or with wrong dates, an octavo volume published in 1866.

These things, however, cannot be learnt at once, and it is only by the continual study of catalogues and bibliographies that one comes to know them. Needless to say, however, all reputable booksellers will take back a work which is discovered to be imperfect, provided that the volume be returned without delay.