A similar case was that of Thomas Madox, the learned author of the “History of the Exchequer,” who wrote to Dr. Charlett requesting him to get his book into the College Libraries at Oxford, and explaining that the cost of the impression was £400 for paper and print, and as only 481 copies were printed, “when all the books shall be sold I shall be just able to pay the charges with a trifling over-plus.... This affair,” he adds, “has given me much perplexity, and perfectly cured me of scribbling.”[8] Thomas Hearne was more fortunate, and amassed a small fortune by his publications. One thousand guineas were found in gold in his rooms at St. Edmund Hall after his death. His books were soon out of print, and fetched large prices even in his own lifetime. Lord Spencer bought the whole of the library of Count Revickzky, a catalogue of which had been privately printed by the original owner at Berlin in 1784. According to Dibdin, when the Count was in England he offered his whole collection to Lord Spencer for a certain round sum to be paid to him immediately, and for a yearly sum by way of annuity. The offer was accepted, and as the Count died soon afterwards, Lord Spencer obtained the library at a cheap rate. The same noble collector offered the Duke di Cassano Serra £500 for two books, viz., the _Juvenal_ of Ulric Han, and the _Horace_ of Arnaldus de Bruxella, Naples, 1474, but the offer was not accepted. In 1820 Lord Spencer bought the whole collection. The Duke of Devonshire purchased the valuable library of Dr. Thomas Dampier, Bishop of Ely, for nearly £10,000 after the bishop’s death in 1812. Dr. Dibdin has printed in his “Reminiscences” (vol. i. p. 363) a list of prices at which Dr. Dampier valued the various classes of books in his library. Little idea of the prices of books can be obtained from the amounts given for a whole library, but as in future chapters particulars will be printed of the great libraries that have been disposed of by auction, it seemed well to mention here a few instances of libraries that have been sold entire. The greatest of these is the magnificent library of Earl Spencer, which was sold in 1892 to Mrs. Rylands, and has been transferred from Althorpe to Manchester. The exact amount paid for this library has not been announced, but it is supposed to have been about a quarter of a million pounds. In respect to the history of prices of books, there have been times of inflation and times of depression, just as in the history of prices generally, but it will be seen that in spite of these vicissitudes scarce books have gradually increased in value. The first signs of the growth of _bibliomania_ are seen in the sales of Dr. Mead’s and Dr. Askew’s libraries in the middle of the last century, which aroused a great interest among book collectors.