Hermes Trismegistus
The full title reads: De Alchemia. Opuscula complura veterum philosophorum. Among the texts are the important alchemical works the "Rosarium Philosophorum", presented with illustrations in the second edition (1550); the "Summa Perfectionis" of Pseudo-Geber; and the "Tabula Smaragdina" of Hermes Trismegistus.