The destruction of libraries, which was common in the Middle Ages, naturally caused an increase in the value of those which remained. How completely these libraries passed away may be seen by the instance of that which was once preserved in St. Paul’s Cathedral, and is noticed by the late Dr. Sparrow Simpson in his “St. Paul’s Cathedral Library” (1893). Walter Shiryngton Clerk founded the library, the catalogue of which (1458) fills eight folio pages in the first edition of Dugdale’s “History of St. Paul’s.” Of all the manuscripts in this catalogue, only three are now known to exist: one is still at St. Paul’s, the second is at Aberdeen, and the third at Lambeth. The British Museum is fortunate in possessing the beautiful library of the Kings and Queens of England since Henry VII., which is full of the most splendid specimens of artistic bindings. What the market value of such literary gems as these may be can scarcely be estimated, and fortunately they are safe from the arising of any occasion which might afford a test of their value. From this library we are able to appreciate the good taste of James I., who, whatever his faults may have been, was certainly a true bibliophile, and to him we owe some of the finest books in the collection. It may be safely said that few collections of books have been formed under such difficult and trying circumstances as the invaluable Thomason Collection of Civil War Tracts, now happily preserved in the British Museum. Mr. F. Madan has contributed to _Bibliographica_ (vol. iii. p. 291) a most valuable article on the labours of the worthy Royalist bookseller, George Thomason. Thomason commenced in November 1640, when the “Long or Rebel Parliament” began, his great undertaking of collecting all the pamphlets published in England, and he continued it until May 1661. Many of these were printed surreptitiously, and were obtained with the greatest difficulty; in fact, seventy-three of these were in manuscript, “which no man durst then venture to publish without endangering his ruine.” The King and the Cavalier party knew of the existence of the collection, but every endeavour was made to keep the knowledge from the other party. If it were difficult to form the collection, it was still more difficult to preserve it. We are told that, “to prevent the discovery of them, when the army was Northwards, he packed them in several trunks, and, by one or two in a week, sent them to a trusty friend in Surrey, who safely preserved them, and when the army was Westward, and fearing their return that way, they were sent to London again; but the collector durst not keep them, but sent them into Essex, and so according as they lay near danger, still by timely removing them at a great charge, secured them, but continued perfecting the work.” Afterwards, for greater security, they were lodged in the Bodleian Library, and a pretended bargain was made, and a receipt for