The Brontologion
No public-domain English translation of the Hermetic Brontologion; the surviving Greek text is published in the *Catalogus Codicum Astrologorum Graecorum* (CCAG), e.g. CCAG VIII.4 pp. 175-180. Recommended discussion: A. J. Festugière, *La révélation d'Hermès Trismégiste*, vol. 1 (Paris: Gabalda, 1944). · Stub entry; no text reproduced.
1**Stub.** No public-domain English translation has been imported.
**What survives.** A short Hermetic *brontologion* — a thunder-omen treatise, predicting events for each of the twelve months according to the day of the month on which thunder is heard. Several Greek versions circulate under Hermes' name in Byzantine astrological miscellanies.
**Editions.** Greek text in *Catalogus Codicum Astrologorum Graecorum* (CCAG), e.g. vol. VIII.4 (Brussels: Lamertin, 1921), pp. 175-180; vol. IV (1903), pp. 110-122. These CCAG volumes are in the public domain but no continuous English translation has been published.
Related Mesopotamian thunder-omen texts (the cuneiform *šumma rēmu* series) survive in the *Enūma Anu Enlil* corpus and are not direct sources for the Hermetic version.