Labbé's careless treatment of this information suggests that he had not finished preparing it for publication. The text itself is not entirely intelligible. He did not put it, as St. Jerome had done, in the introduction and failed to find any other logical place for it. St. Jerome's list obviously interested Labbé, for he quoted it again in the article "Sanctus Hieronymus." When Antoine Teissier revised and enlarged the Bibliotheca bibliothecarum in 1686, he came upon this duplication and retained only the passage in the article "Sanctus Hieronymus."
Except the long-forgotten Labbé, subsequent bibliographers know nothing of St. Jerome's brief list. It did not set anyone to writing bibliographies of bibliographies, and no example has been reported in the almost uncharted area of bibliographical history that lies between St. Jerome and the Renaissance.
Modern bibliographies of bibliographies begin as sections in general subject indexes. In any such index bibliography is, as a matter of course, represented. Conrad Gesner's Pandectae, 1548,[16a] which is the first subject index to be printed, begins with bibliography. The first book (liber) of the Pandectae is entitled "De grammatica" and deals with the classification and organization of knowledge.[17] Chapter (titulus) XIII, with which we are especially concerned, is a treatise on general bibliography.[18] Its eight sections (partes) deal with books of general usefulness and some related matters. Pars i, "Greek and Latin Writers of Miscellanies and of Books Containing Critical Comments on More than One Author," is well described by its title. Gesner divides it into two parts: "Greek Miscellanies," including such works as Aelian, Varia historia;[19] Athenaeus, Deipnosophistae;[20] Clement of Alexandria, Stromata;[21] and Johannes Tzetzes, Historia varia.[22] Books of this sort were reference works consulted for information on almost any subject. To this alphabetical list Gesner adds three titles: the accounts of marvels found in various works by Aristotle; Julius Pollux, Onomasticon; and Plutarch, Symposium.[23] For a bibliography of books of table talk similar to Plutarch's work Gesner refers the reader to Liber Politica, Titulus Convivia.[24] He adds a concluding remark that Caelius Rhodiginus and Nicolaus Leonicenus—men who had written widely used contemporary miscellanies—as well as other makers of compilations have drawn freely on the authorities that he has listed. Gesner is a good bibliographer. He has arranged these titles carefully and has clearly indicated how much he knows about them and the translations of them.
The second part of Titulus XIII, Pars i, is devoted to Latin miscellanies. It begins with Alexander ab Alexandro (Alessandro Alessandri, d. 1523), Geniales dies, "which contains grammatical and legal collectanea and comments on various authors." Gesner remarks that he has preferred to cite miscellanies and collections of loci communes because a separately printed treatise can be easily found but the information in a miscellany is likely to be overlooked.[25] He then names some fifteen Latin miscellanies of various dates according to the first names of the authors. Among them are the writings of Angelo Poliziano, Aulus Gellius, the Adagia of Erasmus, the Varia of Cassiodorus, the Saturnalia of Macrobius, the De honesta disciplina by Petrus Crinitus, and the De inventoribus rerum by Polydore Vergil. This mingling of classical and contemporary authorities is characteristic of Renaissance scholarship. Gesner concludes with a citation of a quarto Miscellanea printed in Paris by Gormont and written by an unidentified author (nescio quo authore).[26]
Gesner's free use of cross-references shows how carefully he planned his book. For example, he reminds the reader that miscellanies dealing with such natural objects as metals, stones, animals, and plants will be found in the book entitled Physica,[27] those concerned with the words and deeds of famous men will be found in Caelius Rhodiginus,[28] and epistolographers, who may be thought of as authors of books of a miscellaneous character, will be found in a later section.[29] In a subdivision indicated by a paragraph sign but without a centerhead Gesner says that dictionaries contain miscellaneous information, cites examples, and adds a cross-reference to his discussion of dictionaries. As is evident, he has covered the sources of miscellaneous information rather fully.
In a second division of this part Gesner names writers who have written comments on several authors and have printed them in a single volume. He cites eleven examples, beginning with Bassianus Landus (Bassiano Landi, d. 1562), Epiphyllides[30] and including the manuscript notes of his contemporary, the Neapolitan grammarian, L. J. Scoppa. Since the Epiphyllides does not seem to have been printed and a contemporary scholar's manuscript notes are obviously difficult to find, Gesner can be said to have taken great pains with the list. He excludes those who have written one or more volumes of commentary on a single author.
In Pars ii, De indicibus librorum, an extremely interesting discussion of indexes with rather little bibliographical baggage, Gesner differentiates and discusses several varieties and brings his discussion of methods to a close with some remarks about page numbers and chapter numbers.[31] A paragraph sign sets off a list of indexes to various books, chiefly editions of the classics and Biblical or patristic writings. This list would have been very useful to H. B. Wheatley in writing What is an Index? (London, 1879). On the next page (fols. 21a-21b) Gesner names a few publishers' catalogues and, after a paragraph sign, a few library catalogues.[32] Pars ii ends with a long discussion of the ways of cataloguing books (fols. 21b-22b).
Pars iii, Problemata, Quaestiones & Disputationes, is a strictly bibliographical account of special varieties of miscellanies.[33] The next two Partes contain a discussion of the methodology of note-taking and are not directly bibliographical in nature. Pars vi lists some forty collections of commonplaces (fols. 27b-28a). Among them are Antonius Corvinus's arrangement of Erasmus's Apophthegmata in commonplaces,[34] Stobaeus, Thomas Hibernicus,[35] Maximus Planudes (who expurgated and arranged the Greek Anthology in loci communes), Otto Brunfels (whose Pandectae sacrae[36] Gesner has used freely), and Valerius Maximus. Such books were more or less like general reference works. Here, as elsewhere, Gesner names classical and contemporary writers in a single list.
We have been examining thus far Gesner's account of general reference works and come finally to the seventh pars, which is the most interesting division of the titulus for a student of bibliographical history. It is entitled Bibliographies, i.e. alphabetical list of catalogues of books, the classification of books, the care of them, mottoes, and the buildings.[37] This title is virtually the table of contents of a handbook of library science.[38] We shall consider only the first sections of this pars and in particular Gesner's bibliography of bibliographies.
Gesner begins the seventh pars with miscellaneous notes on pertinent books and on libraries. He carefully separates these notes from the following bibliography of bibliographies. This is an alphabetical list of thirty-one names, beginning with