An old recipe for removing ink-stains was to take a spoonful of good aquafortis, in which break a piece of chalk the size of a large barley corn; add two spoonfuls of rose-water and one of vinegar. This should be mixed in a clean glass and left to stand for several hours. It is to be applied with a piece of new sponge, by pressure, and not too freely nor too long. When the paper is nearly dry renew the process, and when the ink shall have disappeared, promptly wash out the acid with pure water and a clean linen rag. (But it is too strong for many fabrics.)
When the ink does not penetrate the paper it can be removed by erasure with a sharp penknife, or a preparation of vulcanised indiarubber and powdered pumice-stone sold by most stationers. When this latter does not “bite,” its action can be aided by very slightly moistening it. After erasure rub the spot scraped with very finely powdered pumice-stone, and polish with a burnisher or any smooth substance.
Even when an inkstand has been spilled over a printed or long-written page, we can by prompt action extract the new ink and leave the old plain as ever; but the reader who expects to work this miracle of changing night into day must not wait till the accident happens to first attempt to remedy it, or he will probably fail. Let him first of all, not once but often, pour ink on some waste and worthless page, and then experiment first with the blotting-paper, then with the dilute acids and the padding. The time will not by any means be wasted.
A fresh ink-spot can be easily removed from paper by rubbing it with a finely pulverised mixture of saltpetre, sulphur, alum, and pumice. If the spot is an old one, moisten it first a little with water.
Ink-spots, &c., in old MSS. were sometimes ingeniously covered by ornaments in gold or colour.
When an entire page or many pages of a book are missing, it often happens that, at much less expense than would be supposed, an ingenious printer can restore the whole. There are many books for which it would be worth while to have the type cast, for even with a page thus restored the book may be worth ten times as much as if it were wanting. Missing pages are often supplied by photographic fac-similes from another copy.
It was only yesterday, as I write, here in Florence, that I heard a tourist declare that there was nothing worth buying to be found, and that everything curious was snapped up at once. To which I could not assent, never having seen so many objects as of late which I regarded as great bargains. But they were all dilapidated, and the tourist generally likes to see everything in splendid condition. To him who can restore old books and ivories and leather-work and panel pictures, there will be no lack of bargains for a long time anywhere. The men who sell are not all such marvellous experts in mending up, repairing, and forging as literary dealers in the wonderful would have us believe. If they were so clever they would not let valuable panel pictures split in two before their eyes from ignorance of knowing how to straighten and tack them at a penny’s cost. There is abundance of clever forging, of lying ivories and silver-work and sham antique leather, but of restoration of smaller or of single objects there is very little; and there is, as I have said, in this a vast field for every collector who knows enough to make practical application of what is taught in this book. It is so far from true that everything is now snapped up, that I confidently assert that there is hardly a bric-à-brac shop in Europe in which a skilled repairer cannot find a bargain, and in most cases several.
It will often be of service to the mender of books to be able to prepare parchment-paper for himself. If we take a mixture of one part nitric acid to three of water—the proportions varying very much with the quality of the acid and of the paper—and dip into it a piece of soft unglazed paper, the latter will at once harden into a substance like parchment. It should be at once washed in changes of pure water. I may here observe that neither in making this nor anything else should the operator be satisfied with a single experiment.
Regarding paper, there are certain curious facts worth knowing by every reader. Before the invention or general use of window-glass, a very transparent kind of paper was, according to Kircher (De Secretis), prepared as follows:—
Take paper from the mill, not as yet sized, and mix with it to six parts of turpentine two of mastic. This really makes a very clear, or at least diaphanous, medium, which may be used for temporarily repairing broken glass windows.