This work must ever be highly valued as affording the only complete index to the rich repertory of Arabian Manuscripts in the Escurial, and for the ample evidence which it exhibits of the science and mental culture of the Spanish Arabs. Gibbon remarks: "The execution of this work does honour to the Spanish press. The MSS., to the number of 1851, are judiciously classified by the Editor, and his copious extracts throw some light on the Mahommedan literature and history of Spain." CASTRO (J. R. de). Biblioteca Española ... Su autor Joseph Rodriguez de Castro. 2 vols., folio, pp. (32), 668, Index, (84); (8), 749. _Madrid, en la Imprenta Real._ 1781-86. Vol. I., Spanish Rabbin writers to the close of seventeenth century; Vol. II., Spanish Pagan and Christian writers to the eighteenth century. Catalogue or Alphabetical Index of the Astor Library.... Part I. Authors and Books. [Compiled by J. G. Cogswell.] ... 8vo, pp. v, 2110. _New York: Printed by R. Craighead._ 1857-1861. + Supplement ... with an Alphabetical Index of Subjects in all the Volumes.... 8vo, pp. (4), 605. _New York._ 1866. With title-pages to divide the work into five volumes. Catalogue of Books relating to America, in the Collection of Colonel Aspinwall, Consul of the United States of America at London. 8vo, pp. (4), 66. [_Paris._ 1831?]. The collection comprises 771 rare and valuable articles, collected by its worthy possessor during his long residence at London as Consul-General. They were subsequently purchased by Mr. S. L. M. Barlow of New York. Catalogue of the Library of the American Philosophical Society, held at Philadelphia for promoting Useful Knowledge. Published by order of the Society. 8vo, pp. xv, 290. _Philadelphia: Joseph R. A. Skerrett._1824. Catalogue of the American Philosophical Society Library. Part I., II. ... 8vo, pp. 634. _Philadelphia: Caxton Press of C. Sherman, Son & Co._ [1863-66.] A Catalogue of Books in the Library of the American Antiquarian Society, in Worcester, Massachusetts. [By C. C. Baldwin.] 8vo, pp. 571 in all. _Worcester._ 1837. This catalogue is replete with the rarest of American pamphlets. Alphabetical Catalogue of the Library of Parliament: being an Index of the Classified Catalogue Printed in 1851 and 1858, and to Books added to 1st March, 1862. 8vo, pp. 313. _Québec: Hunter, Rose & Co._ 1862. + ... Printed in 1857, 1858, and 1864, and to the Books and Pamphlets since added to the Library, up to 1st October, 1867.... 8vo, pp. 496. _Ottawa: Printed by G. E. Desbarats._ 1867. The title-pages, rules, etc., of all the following catalogues, are also given in French.