IR HIRAM MAXIM, the knight from Maine, prophesies that we shall change our religion twenty times in the next twenty thousand years. In the last two thousand years we have changed our book material twice, from papyrus to parchment and from parchment to paper, with a consequent change of the book form from the roll to the codex. Shall we therefore change our book material twenty times in the next twenty thousand years? Only time itself can tell; but for five hundred years the book has never been in such unstable equilibrium as at present; the proverb "A book's a book" has never possessed so little definite meaning. This condition applies chiefly to the paper, but as this changes, the binding will also change from its present costly and impermanent character to something at once cheaper and more durable. The changes in modern paper have worked in two opposite directions, represented on the one hand by Oxford India paper, with its miraculous thinness, opacity, and lightness, and on the other hand by papers that, while also remarkably light, offer, as a sample book expresses it, "excellent bulk"; for instance, 272 pages to an inch as against 1500 to an inch of Oxford India paper. Some of these results are surprising. What, for instance, could be more illogical than to make a book any thicker than strength and convenience require? Yet one has only to step out into the markets where books and buyers meet to find a real demand for this excess of bulk. Though illogical, the demand for size in books is profoundly psychological and goes back to the most primitive instincts of human nature. The first of all organs in biological development, the stomach, will not do its work properly unless it has quantity as well as quality to deal with. So the eye has established a certain sense of relationship between size and value, and every publisher knows that in printing from given plates he can get twice as much for the book at a trifling excess of cost if he uses thicker paper and gives wider margins. That all publishers do not follow these lines is due to the fact that other elements enter into the total field of bookselling besides quantity, the chief of which is cost, and another of which, growing in importance, is compactness. But it is safe to say that to the buyer who is not, for the moment at least, counting the cost, mere bulk makes as great an appeal as any single element of attractiveness in the sum total of a book. This attraction of bulk receives a striking increase if it is associated with lightness. The customer who takes up a large book and suddenly finds it light to hold receives a pleasurable shock which goes far towards making him a purchaser. He seems not to ask or care whether he may be getting few pages for his money. The presence of this single, agreeable element of lightness at once gives a distinction to the book that appears to supplant all other requirements. Curiously and somewhat unexpectedly the results of neither extreme, thick paper nor thin, are wholly satisfactory in the library. The parvenu, who is looking only to the filling up of his shelves with volumes of impressive size, may find satisfaction in contemplating wide backs. But the scholar and the public librarian will grudge the space which this "excellent bulk" occupies. One single element in their favor he will be quick to recognize, the better space which they afford for distinct lettering. In a private library that is collected for use and not for show the thin-paper books are almost an unmixed blessing. They cost little for what they contain. Their reduction in thickness is often associated with a reduction in height and width, so that they represent an economy of space all round. A first-rate example of this is furnished by the Oxford India Paper Dickens, in seventeen volumes, printed in large type, yet, as bound, occupying a cubical space of only 13 by 7 by 4-1/2 inches and weighing only nine pounds. A more startling instance is that of the novels of Thomas Love Peacock, which are issued in a pretty library edition of ten volumes. But they are also issued in a single volume, no higher nor wider, and only three-fourths of an inch thick. But it is at this point that the public librarian rises to protest. It is all very well, he says, for the private owner to have his literature in this concentrated form, but for himself, how is he to satisfy the eight readers who call for "Headlong Hall," "Nightmare Abbey," |