To consider first a few simple processes of ordinary restoration, let us assume that a rare book in its original cloth or boards, in a more or less damaged condition but not to the point of necessitating rebinding, has just been received.

The first operation required is to carefully clean off the binding with a soft cloth, wipe off the end papers, which often have a coating of dust, especially when the covers do not fit closely, and, if the top is gilt, wipe that carefully also. An “uncut” top is freed from dust by brushing with a soft brush.

The book is then collated to make sure that every page is in place and, if there are plates, that no plate is missing. This operation, it is perhaps needless to say, should by all means be done before purchasing, unless the book comes from a reliable dealer to whom an imperfect copy could be returned. If, in collating an old book, the amateur discovers that page 173 follows immediately after page 136, he need not necessarily be alarmed, as mistakes in pagination and even in the numbering of signatures are very common in books printed a century or more ago. In such cases, the “catch words” which generally appear at the bottom of the pages, or else the text itself, should be examined to see whether the page, without regard for its number, is really in its proper place or not. Each page is then examined for dirt or finger marks, which can almost always be removed, the quality of the paper permitting, with a soft pencil-eraser or bread crumbs.

Marginal notes, especially in contemporary hands, are much better left alone; they are often of considerable value and, when neatly and not excessively done, rather add to the interest of the volume without detracting from its value to any great extent. On which subject Bonnardot has quite a little to say, in the chapter on Stains included in this volume.

Presentation inscriptions in the autograph of the author or of some one intimately connected with him of course greatly increase the interest and value of the book. Names written on title-pages can often be effaced by the process elsewhere described, but these should not be disturbed until they have been thoroughly investigated. A name which at the moment seems totally unfamiliar may sometimes be found of special interest inscribed in the particular volume in which it is found. As an ordinary illustration of this, might be mentioned a copy of Edwin Arnold’s “Gulistan” bearing on the half-title the inscription “To dear Mrs. Stone from Tama.” This author had, at one time, married a Japanese girl, and a little investigation revealed that her name was Tama KuroKawa. Her inscription, of course, remains undisturbed, as it adds a distinctly personal note to the volume. But alas! the John Diddles and William Bubbles who have for centuries scribbled their odious names over fair title-pages, with never the grace to make themselves immortal and their autographs a find!

Writing in the year 1345, Richard de Bury remarks, “When defects are found in books, they should be repaired at once. Nothing develops more rapidly than a tear, and one which is neglected at the moment must later be repaired with usury.” Bearing in mind these words of wisdom while examining each page of the book, pencil notes should be made on a slip of paper of any pages needing repairs, also of any places between the signatures where the back is “shaken” exposing the stitching and lining.

Checking off from this list, advisable repairs should then be made. The edges of any tears should be neatly joined with paste. To do this, a clean sheet of white paper should be placed under the torn part and the edges of the tear lightly coated with ordinary white paste. These edges are then pressed together by means of another sheet of white paper pressed above, both the upper and under sheets being gently moved several times to prevent them from sticking to the torn edges. Paste used in this way dries in a few minutes and holds firmly if the edges of the tear are a bit rough. If the page is separated by a clean cut, it may be necessary to apply a strip of thin tissue to hold the edges together. The same general method may be used for inlaying pieces torn from the margins, perhaps by the careless use of a paper cutter in the hands of the original owner. Paper of the same weight and tint as the torn page is secured, placed under the lacuna, and the outlines of the missing part traced off with a sharp pencil. The piece to be inlaid is then cut, following the traced outline but leaving a little margin, and pasted in position, the outer edge being cut even with the general edge of the leaf when the inlay is dry.[1]

White paper for inlaying may be tinted with water-colors to match the old paper. The best method, however, of imitating the yellowish tone of old paper is to stain the inlay with potassium permanganate. This is a dark purple crystal which is used in extremely weak solution in warm water. If a sheet of paper is to be tinted for inlaying or to replace, perhaps, a missing fly-leaf, it is laid in the solution for a few seconds, then removed and the excess purple tone thoroughly washed off under running water. The paper will then be found tinted a pale, yellowish brown, the tone of which may be varied by the strength of the solution and the length of time the paper remains in it. Coffee, licorice or tobacco may also be used, with good results.

The pages all in order and repair, the next operation is to repair the “shaken” back. Perhaps there is no ill to which old books, especially modern issues in their original bindings, are more subject. The damage known as “broken” back usually means a book practically broken in half, the break, in old calf bindings, usually extending through to the outside of the back. The “shaken” back on the contrary, has merely separated between the signatures, exposing, between the inside sheets, the lining of the back. Cheaply bound books seldom remain solid between the signatures, especially when they are printed on heavy, unyielding paper. The damage arises partly from the drying out of the glue in the back and partly from careless handling by readers. Books should always be opened gently and never forced open to absolutely flatten out the pages unless the binding is known to be entirely safe and firm.