Bibliographical sources mentioned in these texts:
Albertus, Leander 137.18, 137.36 ; quoting the Commentaries of Augustinus Iustinianus On Corsica 137.26
Blond(i)us 137.11, 137.14, 137.33
Salisbury, John of, or Polycraticon or Polycarpus: Bk.6 Ch.17, Bk.8 Ch.23 137.4
Orlandius, Cæsar of Siena, maker of Ort137a mentioned in cartouche. In text : Antiquities of Siena 137.2, 137.11
Ortelius exploring Recanati 137.16, 137.34; exploring Siena 137.29
Pamphilus, Franciscus : On Marcha Anconæ 137.18
Plinius 137.5, 137.6, 137.8, 137.25, 137.41
Plutarchus 137.3
Polybius 137.3
Polycarpus see Salisbury 137.4
Polycraticon see Salisbury 137.4
Ptolemæus, Claudius of Siena 137.5 ; Bk.6 Epistles to Gabriel Cæsano 137.12
Ptolemæus 137.6, 137.8
Rutilius Claudius Numatianus : Itinerarium mentioned in cartouche 137a
Silius Italicus 137.15, 137.33
Strabo 137.25, 137.41
Tacitus, Cornelius : Bk.20 Annals 137.5