Two hundred and fifty copies printed. The two leaves, subsequently printed, giving an account of the sale of the edition at auction, at the upset price of £9 per set, should be added, "a result," says Mr. Sotheby "unparalleled in the annals of literature." One of the most important works ever produced upon the history of early printing, on which it throws great additional light. It contains an extended examination of the various editions of the block books (or books printed from wooden blocks), the earliest productions of the art, issued in Holland, Flanders, and Germany, such as the Apocalypsis S. Johannis, Biblia Pauperum, Ars Moriendi, Cantica Canticorum, Liber Regum, Temptationes Dæmonum, Ars Memorandi, Endkrist, Quindecim Signa, De Generatione Christi, Miribilia Romæ, etc. It is not, however, confined to a history of block books, for it gives minute accounts, accompanied by exact facsimiles, of some of the most interesting and rare works printed with movable type in the infancy of the art, such as the Donatuses, Doctrinale, Catonis Disticha, Horarium, Facetiæ, Morales, Speculum Humanæ Salvationis, Bartolomæus van de Proprietaten der Dinghen, Exhortatio contra Turcos, Literæ Indulgentiarum, etc. SOTHEBY. Memoranda relating to the Block-Books preserved in the Bibliothèque Impériale, Paris, made October MDCCCLVIII., by Samuel Leigh Sotheby. Folio. _London: Printed for the Author._ MDCCCLIX. Privately printed, and scarce. Uniform with the _Principia_, to which it forms an indispensable supplement. SOTHEBY. The Typography of the Fifteenth Century; being Specimens of the Productions of the Early Continental Printers, Exemplified in a Collection of Facsimiles from one hundred Works, together with their Water-Marks. Arranged and Edited from the Bibliographical Collections of the Late Samuel Sotheby by his Son, S. Leigh Sotheby. Folio, pp. 65, vii. _London: Thomas Rodd._ 1845. One hundred copies only printed; very scarce. Uniform in size with the _Principia Typographica_. It contains 100 facsimile plates of the productions of the early printers, with the initials colored and illuminated in gold, in imitation of the originals, besides nearly 100 cuts on wood of paper-marks, etc. It will be found a very useful work with which to identify the books which have neither name of printer or place of printing. SPARKS (J.) Catalogue of the Library of Jared Sparks; with a List of the Historical Manuscripts collected by him, and now deposited in the Library of Harvard University. [Edited by C. A. Cutter.] 8vo, pp. iv, (1), 4, 230, (1). _Cambridge: Riverside Press._ 1871.