Cotton's 'Typographical Gazetteer,' of which the second (and better) edition was printed at Oxford in 1831, is valuable for the identification of ancient Latin place-names. A second series was published in 1866. J. Hilton's 'Chronograms' (1882) and 'Chronograms Continued' (1885) are often of great assistance with regard to dates. In 1895 this indefatigable collector published a third volume, quarto, containing more than four thousand additional examples. For mere lists of works upon definite subjects one may consult Sargant and Whishaw's 'Guide-Book to Books' (1891) and 'The Best Books,' by W. S. Sonnenschein.
For the identification of authors who wrote under a pseudonym you will find 'A Handbook of Fictitious Names,' by 'Olphar Hamst' (which was the pseudonym of Ralph Thomas) useful. It was published in 1868. But this has been partly superseded by Cushing's 'Initials and Pseudonyms,' large octavo, London, 1886; and the valuable work of Emil Weller, entitled 'Lexicon Pseudonymorum,' of which the second edition was published at Regensburg the same year, in octavo. This contains thousands of pseudonyms of all nations and all ages. Cushing also published 'A Dictionary of Revealed Authorship,' in two volumes, 1890. Then there is the valuable 'Dictionary of the Anonymous and Pseudonymous Literature of Great Britain,' by Halkett and Laing, which appeared in four octavo volumes between 1882 and 1888. Mr. F. Marchmont's 'Concise Handbook of Literature issued Anonymously under Pseudonyms or Initials,' appeared in 1896.
Antoine Barbier's 'Dictionnaire des Ouvrages Anonymes et Pseudonymes' was published first in four octavo volumes at Paris so long ago as 1806-8. A second edition was put forth in 1822-27. But between 1869 and 1879 a third edition, revised and enlarged, was incorporated with 'Les Supercheries Littéraires Dévoilées' of Joseph Marie Quérard (the second edition), the whole being edited by MM. Gustave Brunet and Olivier Barbier, and issued in seven large octavo volumes. The first three volumes (1869-70) appeared under the title of Quérard's work, the last four (1872-9) under that of Barbier. Quérard's work, which first appeared in four octavo volumes, 1847-52, is, as its title indicates, a dictionary of those books in French which have been published under fictitious names, are spurious, or have been wrongly ascribed. It is valuable for the identification of many fictitious memoirs and like books. Barbier's work deals with French anonymous and pseudonymous books. De Manne's 'Nouveau Dictionnaire des Ouvrages Anonymes et Pseudonymes,' octavo, Lyon, 1862, deals chiefly with contemporary French works. For pseudonymous books in Italian one must consult the work of Vincenzo Lancetti, which appeared at Milan, in octavo, 1836, as well as the 'Dizionario di Opere Anonime e Pseudonime di Scrittori Italiani,' by G. M. (Gaetano de' Conti Melzi), also published at Milan in three octavo volumes, 1848-59. A supplement, by G. Passano, was issued at Ancona in 1887.