1. Harmonicorum libri III Creator: Ptolemy, active 2nd century Published / Created: [ca. 1550] Call Number: Beinecke MS 208 Image Count: 144 Resource Type: unspecified Found in: Beinecke Rare Book and Manuscript Library > Harmonicorum libri III
2. Harmonicum enchiridion; with Gaudentius, Introductio harmonica Creator: Nicomachus, of Gerasa Published / Created: 1585. Call Number: Beinecke MS 272 Image Count: 180 Resource Type: unspecified Found in: Beinecke Rare Book and Manuscript Library > Harmonicum enchiridion; with Gaudentius, Introductio harmonica