De horoscopiis aquariis fragmentum
(greek, ed.: W. Schmidt, L. Nix, H. Schöne, J. L. Heiberg, Heronis opera quae supersunt omnia, Leipzig 1899)
at Bibliotheca Augustana
[www.hs-augsburg.de/~Harsch/graeca/Chronologia/S_post01/Heron/her_hora.html]

Pneumatica
(engl., ed.: B. Woodcroft, London 1851)
at Rochester History Resources
[www.history.rochester.edu/steam/hero/]