Thoth ( from: “Alchemy illustrated from A to Z”, by Diana Fernando)
The God of Letters, the Measurer, often depicted carrying a staff marked with a cubit.
The ibis was sacred to him, and ibis-headed statues were common. In Hermes’s chief temple at Hermopolis, many mummified ibises have been found.
All scholars agree that Hermes Trismegistus, the father of alchemy, was the same as the Egyptian Thoth. Even Isaac Casaubon, the seventeenth-century debunker of Hermetic texts, did not deny the possibility of an ancient sage called Hermes Trismegistus.
The idea of the writings of Thoth is very old; it goes back to the Eighteenth Dynasty (1567-1320 BC). Plutarch and Clement of Alexandria refer to the Writings of Hermes, and even though the writings in the Book of the Dead may not much resemble the later Corpus Hermeticum, there could be a connection.
Quoted from: “Alchemy illustrated from A to Z”, by Diana Fernando, 1988