Hermetica

The category of "technical" Hermetica encompasses a broad variety of treatises dealing with astrology, medicine and pharmacology, alchemy, and magic, the oldest of which were written in Greek and may go back as far as the second or third century BCE. Many of the texts belonging to this category were later translated into Arabic and Latin, often being extensively revised and expanded throughout the centuries. Some of them were also originally written in Arabic, though in many cases their status as original works or translations remains unclear. These Arabic and Latin Hermetic texts were widely copied throughout the Middle Ages (the most famous example being the Emerald Tablet).

The "religio-philosophical" Hermetica constitute a relatively coherent set of religio-philosophical treatises, primarily written in the second and third centuries. However, the very earliest one of them, the Definitions of Hermes Trismegistus to Asclepius, may go back to the first century CE. They are chiefly focused on the relationship between human beings, the cosmos, and God (thus combining philosophical anthropology, cosmology, and theology). Many of them are also moral exhortations calling for a way of life (the "way of Hermes") leading to spiritual rebirth, and eventually to divinization in the form of a heavenly ascent. The treatises in this category were probably all originally written in Greek, although some of them survive only in Coptic, Armenian, or Latin translations. During the Middle Ages, most of them were only accessible to Byzantine scholars (an important exception being the Asclepius, which mainly survives in an early Latin translation), until a compilation of Greek Hermetic treatises known as the Corpus Hermeticum was translated into Latin by the Renaissance scholars Marsilio Ficino (1433–1499) and Lodovico Lazzarelli (1447–1500).

Although strongly influenced by Greek and Hellenistic philosophy (especially Middle Platonism and Stoicism), and to a lesser extent also by Jewish ideas, many of the early Greek Hermetic treatises also contain distinctly Egyptian elements, most notably in their affinity with traditional Egyptian wisdom literature. This used to be the subject of much doubt, but it is now generally admitted that the Hermetica as such did in fact originate in Hellenistic and Roman Egypt, even if most of the later Hermetic writings (which continued to be composed at least until the twelfth century CE) did not. It may even be the case that the great bulk of the early Greek Hermetica were written by Hellenizing members of the Egyptian priestly class, whose intellectual activity was centred in the environment of Egyptian temples.

Technical Hermetica

Greek

Greek astrological Hermetica

The oldest known texts associated with Hermes Trismegistus are a number of astrological works which may go back as far as the second or third century BCE:

• The Salmeschoiniaka (the "Wandering of the Influences"), perhaps composed in Alexandria in the second or third century BCE, deals with the configurations of the stars.
• The Nechepsos-Petosiris texts are a number of anonymous works dating to the second century BCE which were falsely attributed to the Egyptian king Necho II (610–595 BCE, referred to in the texts as Nechepsos) and his legendary priest Petese (referred to in the texts as Petosiris). These texts, only fragments of which survive, ascribe the astrological knowledge they convey to the authority of Hermes.
• The Art of Eudoxus is a treatise on astronomy which was preserved in a second-century BCE papyrus and which mentions Hermes as an authority.
• The Liber Hermetis ("The Book of Hermes") is an important work on astrology laying out the names of the decans (a distinctly Egyptian system that divided the zodiac into 36 parts). It survives only in an early (fourth- or fifth-century CE) Latin translation, but contains elements that may be traced to the second or third century BCE.

Other early Greek Hermetic works on astrology include:

• The Brontologion: a treatise on the various effects of thunder in different months.
• The Peri seismōn ("On earthquakes"): a treatise on the relation between earthquakes and astrological signs.
• The Book of Asclepius Called Myriogenesis: a treatise on astrological medicine.
• The Holy Book of Hermes to Asclepius: a treatise on astrological botany describing the relationships between various plants and the decans.
• The Fifteen Stars, Stones, Plants and Images: a treatise on astrological mineralogy and botany dealing with the effect of the stars on the pharmaceutical powers of minerals and plants.

Greek alchemical Hermetica

Starting in the first century BCE, a number of Greek works on alchemy were attributed to Hermes Trismegistus. These are now all lost, except for a number of fragments (one of the larger of which is called Isis the Prophetess to Her Son Horus) preserved in later alchemical works dating to the second and third centuries CE. Especially important is the use made of them by the Egyptian alchemist Zosimus of Panopolis (fl. c. 300 CE), who also seems to have been familiar with the religio-philosophical Hermetica. Hermes' name would become more firmly associated with alchemy in the medieval Arabic sources (see below), of which it is not yet clear to what extent they drew on the earlier Greek literature.

Greek magical Hermetica

• The Cyranides is a work on healing magic which treats of the magical powers and healing properties of minerals, plants and animals, for which it regularly cites Hermes as a source. It was independently translated both into Arabic and Latin.
• The Greek Magical Papyri are a modern collection of papyri dating from various periods between the second century BCE and the fifth century CE. They mainly contain practical instructions for spells and incantations, some of which cite Hermes as a source.

Arabic

Many Arabic works attributed to Hermes Trismegistus still exist today, although the great majority of them have not yet been published or studied by modern scholars. For this reason too, it is often not clear to what extent they drew on earlier Greek sources. The following is a very incomplete list of known works:

Arabic astrological Hermetica

Some of the earliest attested Arabic Hermetic texts deal with astrology:

• The Qaḍīb al-dhahab ("The Rod of Gold"), or the Kitāb Hirmis fī taḥwīl sinī l-mawālīd ("The Book of Hermes on the Revolutions of the Years of the Nativities") is an Arabic astrological work translated from Middle Persian by ʿUmar ibn al-Farrukhān al-Ṭabarī (d. 816 CE), who was the court astrologer of the Abbasid caliph al-Mansur (r. 754–775).
• The Carmen Astrologicum is an astrological work originally written by the first-century CE astrologer Dorotheus of Sidon. It is lost in Greek, but survives in an Arabic translation, which was in turn based upon a Middle Persian intermediary. It was also translated by ʿUmar ibn al-Farrukhān al-Ṭabarī. The extant Arabic text refers to two Hermeses, and cites a book of Hermes on the positions of the planets.
• The Kitāb Asrār an-nujūm ("The Book of the Secrets of the Stars", later translated into Latin as the Liber de stellis beibeniis) is a treatise describing the influences of the brightest fixed stars on personal characteristics. The Arabic work was translated from a Middle Persian version which can be shown to date from before c. 500 CE, and which shared a source with the Byzantine astrologer Rhetorius (fl. c. 600 CE).
• The Kitāb ʿArḍ Miftāḥ al-Nujūm ("The Book of the Exposition of the Key to the Stars") is an Arabic astrological treatise attributed to Hermes which claims to have been translated in 743 CE, but which in reality was probably translated in the circles of Abu Ma'shar al-Balkhi (787–886 CE).

Arabic alchemical Hermetica

• The Sirr al-khalīqa wa-ṣanʿat al-ṭabīʿa ("The Secret of Creation and the Art of Nature"), also known as the Kitāb al-ʿilal ("The Book of Causes") is an encyclopedic work on natural philosophy falsely attributed to Apollonius of Tyana (c. 15–100, Arabic: Balīnūs or Balīnās). It was compiled in Arabic in the late eighth or early ninth century, but was most likely based on (much) older Greek and/or Syriac sources. It contains the earliest known version of the sulfur-mercury theory of metals (according to which metals are composed of various proportions of sulfur and mercury), which lay at the foundation of all theories of metallic composition until the eighteenth century. In the frame story of the Sirr al-khalīqa, Balīnūs tells his readers that he discovered the text in a vault below a statue of Hermes in Tyana, and that, inside the vault, an old corpse on a golden throne held the Emerald Tablet. It was translated into Latin by Hugo of Santalla in the twelfth century.
• The Emerald Tablet: a compact and cryptic text first attested in the Sirr al-khalīqa wa-ṣanʿat al-ṭabīʿa (late eighth or early ninth century). There are several other, slightly different Arabic versions (among them one quoted in a text attributed to Jabir ibn Hayyan, and one found in the longer version of the pseudo-Aristotelian Sirr al-asrār or "Secret of Secrets"), but these are all likely to date from a later period. It was translated several times into Latin in the twelfth and thirteenth centuries, and was widely regarded by medieval and early modern alchemists as the foundation of their art. Isaac Newton (1642–1726) still used it as a source of inspiration.
• The Risālat al-Sirr ("The Epistle of the Secret") is an Arabic alchemical treatise probably composed in tenth-century Fatimid Egypt.
• The Risālat al-Falakiyya al-kubrā ("The Great Treatise of the Spheres") is an Arabic alchemical treatise composed in the tenth or eleventh century. Perhaps inspired by the Emerald Tablet, it describes the author's (Hermes') attainment of secret knowledge through his ascension of the seven heavenly spheres.
• The Kitāb dhakhīrat al-Iskandar ("The Treasure of Alexander"): a work dealing with alchemy, talismans, and specific properties, which cites Hermes as its ultimate source.
• The Liber Hermetis de alchemia ("The Book of Hermes on Alchemy"), also known as the Liber dabessi or the Liber rebis, is a collection of commentaries on the Emerald Tablet. Translated from the Arabic, it is only extant in Latin. It is this Latin translation of the Emerald Tablet on which all later versions are based.

Arabic magical Hermetica

• The Kitāb al-Isṭamākhīs, Kitāb al-Isṭamāṭīs, Kitāb al-Usṭuwwaṭās, Kitāb al-Madīṭīs, and Kitāb al-Hādīṭūs, also known as the Pseudo-Aristotelian Hermetica, are a number of closely related and partially overlapping texts. Purporting to be written by Aristotle in order to teach his pupil Alexander the Great the secrets of Hermes, they deal with the names and powers of the planetary spirits, the making of talismans, and the concept of a personal "perfect nature". Perhaps composed in the ninth century, extracts from them appear in pseudo-Apollonius of Tyana's Sirr al-khalīqa wa-ṣanʿat al-ṭabīʿa ("The Secret of Creation and the Art of Nature", c. 750–850, see above), in the Epistles of the Ikhwān al-Ṣafāʾ ("The Epistles of the Brethren of Purity", c. 900–1000), in Maslama al-Qurṭubī's Ghāyat al-Ḥakīm ("The Aim of the Sage", 960, better known under its Latin title as Picatrix), and in the works of the Persian philosopher Suhrawardī (1154–1191). One of them was translated into Latin in the twelfth or thirteenth century under the title Liber Antimaquis.
• The Cyranides is a Greek work on healing magic which treats of the magical powers and healing properties of minerals, plants and animals, for which it regularly cites Hermes as a source. It was translated into Arabic in the ninth century, but in this translation all references to Hermes seem to have disappeared.
• The Sharḥ Kitāb Hirmis al-Ḥakīm fī Maʿrifat Ṣifat al-Ḥayyāt wa-l-ʿAqārib ("The Commentary on the Book of the Wise Hermes on the Properties of Snakes and Scorpions"): a treatise on the venom of snakes and other poisonous animals.
• The Dāʾirat al-aḥruf al-abjadiyya (The Circle of Letters of the Alphabet"): a practical treatise on letter magic attributed to Hermes.

Latin

Latin astrological Hermetica

The Centiloquium Hermetis is a Latin collection of one hundred astrological aphorisms attributed to Hermes, compiled and translated from Greek by Stephen of Messina for King Manfred of Sicily (r. 1258–1266). Some of these aphorisms can be traced to Arabic sources such as Abu Ma'shar al-Balkhi (787–886 CE) and Masha'allah (c. 740 – 815), while others may have been invented by the translator, who was probably working with a Greek intermediary. It was one of the most popular Hermetic texts of the Middle Ages, known from over 80 manuscripts and some 16 printings between 1484 and 1674.