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 Alberti Magni de antiquis authorib. astronomiae liber[39] Amphicrates de viris illustrib. scripsit, Athenaeo teste Apollodorus Athenien. Bibliothecae pars etiamnun extat. In this list Gesner includes both general and special bibliographies. He cites St. Jerome's _De scriptoribus ecclesiasticis_ (a variant title of the _De viris illustribus_) and the continuations by Bede, Gennadius of Marseilles, Honorius Augustodunensis, Isidore of Seville, and Sigebert of Gembloux; Johannes Tritheim, who compiled the original work of St. Jerome and the continuations into a single volume; and Sophronius, who translated it into Greek. He cites contemporary legal bibliographies, one by Bernardinus Rutilius (Bernardino Rutilio, 1504-1538), who dealt with men of his own time, and another by Johannes Fichardus (Johann Fichard, 1512-1581), the often published _Juris consultorum vitae veterum quidem_, which surveyed older authorities.[40] He has seen or heard of Jacob Rueff's survey of astrologers, Lilio Gregorio Giraldi's literary history, Otto Brunfels's bibliography of medicine in classical times, and Philip Ribot's biobibliographical dictionary of the Carmelite order. The last he has not seen but believes to have been utilized by Johannes Tritheim.