Bibliographical sources mentioned in this text:
Bellon<ius> : Observations 39.13
Cęsar 39.2, 39.12; : Bk.7 De Bello Gallico 39.6
Calamęus, <or> Calmey, Iohn, <or> Jan Chaumaeu
Mentioned in the cartouche of Ort 39a Berry as the maker of this map Ort39
39.2, 39.3, 39.8
Fagotius, Theobald 39.2
Plinius 39.2
Symeoni, Gabriel : mentioned in the cartouche of Ort39b Limanię as the maker of this map Ort39; : An excellent and speculative dialogue 39.5