The furniture of the library is full of interest, for a quaint writing table, bureau, or desk full of oddments is an exceedingly prolific field of research. In the following paragraphs a few of these curiosities are referred to; there are others, however, that the collector will discover, possibly one of the scarcer curios of the library, some of which realize unexpectedly high prices when they are brought under the hammer. From Cover to Cover. The books which constitute the library are often curious, and there is much that receives its monetary value on account of its antiquity and rarity. An old library will frequently include black-letter printing and old volumes illustrated with wood blocks, and, perchance, illuminated initial letters. Some of the volumes may be printed on vellum, and there may be some in manuscript. The bindings of presentation books may be of rich calf and tooled in gold; some may even have edge paintings and choice hand-painted illuminations. The subject-matter of the volumes often gives rise to specialistic collections. Some will find amusement in tracing the progress of a great industry through published information, like those curious old time tables in the early days of railways, and the pamphlets which are classed by the collector as "Railroadia," and from them learn the story of the "iron horse." There are others who collect books and prints relating to ballooning, the microscope, and many of the earlier sciences. There are topographical curiosities and historical marvels. Some books will be valued because of their illustrations, for the work of a master hand may be recognized by the expert searcher after valuables. The rare mezzotints, stipples, and delicate line engravings, to say nothing of the more valuable colour prints, often realize far more than the books themselves. Ancient art is more valued than the literary efforts of past masters of wielding the pen!