It is not easy to codify these rules, for varying circumstances alter cases: thus new editions reduce the value of some high-priced books, but have no effect in the case of others; and time supersedes some books, while it enhances the value of others. There are, however, one or two points which may be mentioned as regulating price, for those persons who suppose prices to be altogether erratic are certainly wrong.
What, then, are the chief characteristics of a book which make it valuable? “Uniquity,” to use Horace Walpole’s word, is one of these; but this is not always sufficient to keep up the price.
Good condition is the grand enhancer of value, and dirty copies of even scarce works are seldom worth much. But nowadays much is done by the artist to improve these books. The leaves can be washed, torn pages can be mended, imperfections can be filled up by fac-similes, and then the whole can be handsomely bound in morocco, so that the owner scarcely knows his book again. Still, however, one difficulty remains in the artistic make-up—a short copy cannot be made into a tall one.
It is useless for the artist to spend his labour upon