Transitus Fluvii

What it is

Transitus Fluvii is an occult alphabet: a set of 22 letters kept for magical writing rather than everyday use. Its Latin name means 'passing through the river', and French writers knew it as Passage Du Fleuve. The signs take their shapes from the Hebrew alphabet, and two close kin, the Celestial alphabet and the Malachim alphabet, look so alike that the three are usually named together. The letters reached print in Heinrich Cornelius Agrippa's Third Book of Occult Philosophy, a work composed about 1510 and issued at Cologne in 1533. Later occult writers copied the script from such books, and it keeps that reputation today.

Where it comes from

The script entered print through a run of early 16th-century books. Agrippa composed the text about 1510, and it was issued at Cologne in 1533 with the alphabet among its pages. Earlier printings exist: the same signs appear in Abraham de Balmis's Peculium Abrae, a Hebrew grammar with a Latin text, printed in Venice in 1523, and in Geoffroy Tory's Champ Fleury of 1529, where they are captioned 'Lettres Chaldaiques'. Giovanni Agostino Panteo, known as Pantheus, printed them in his Voarchadumia contra alchimiam at Venice in 1530 and attached a legend of origin. As for the name, it is read as recalling the Jewish exiles who crossed the Euphrates on their homeward road from Babylon, bound for Jerusalem and the raising of the Temple anew.

Tools and materials

The script's equipment is its letter set. Twenty-two signs make up the alphabet, matching the count of the Hebrew letters it grew out of. The forms keep a Hebrew silhouette while straying from the common Hebrew hand. Its nearest kin are the Celestial and Malachim scripts, which share the root and much of the look. Where the signs travel in print they carry different labels: in de Balmis's grammar they appear inside a Hebrew lesson, and in Tory's Champ Fleury they are captioned 'Lettres Chaldaiques', Chaldean letters.

What it is for

In the view of the writers who preserved it, the alphabet's work was to give magical writing a hand of its own, apart from the letters of everyday life. Agrippa placed it in his book on occult philosophy, where a special script marks out special text. Pantheus went further and gave the letters a giver: in his account the script was handed to Abraham, just as Hebrew went to Moses and the Enochian writing to Enoch. A script with a patriarch behind it carried the weight of revelation, and words set down in such letters could be treated as belonging to a lineage older than any living author.

Who does it

The script reaches us through authors and printers rather than through any described rite. Heinrich Cornelius Agrippa stands at its head: his book of occult philosophy is the work that fixed its name and letterforms for later readers. Giovanni Agostino Panteo, writing as Pantheus, gave it a legend of origin and a place in his Voarchadumia. Others handled it as scholars of language and print: Abraham de Balmis set it in a Hebrew grammar issued with a Latin text, and Geoffroy Tory placed it in Champ Fleury, published at Paris. Its custodians thus range from occult authors to grammarians.

What people believe

The idea underneath the script is one of entrusted letters, a scheme Pantheus set out in print: every holy alphabet has its bearer, Hebrew letters belonging to Moses, the Enochian writing to Enoch, and this script assigned to Abraham. To bind a script to a patriarch was to claim for it a giver beyond human craft, and that claim is how Pantheus argued for the alphabet's worth. The Latin name adds a second thread, pointing the letters towards a remembered river crossing and a return from exile.

Compare and confuse

The script's nearest relations are the Celestial and Malachim alphabets, its documented siblings: all three grow from Hebrew roots and share much of their look, and all three count among the occult alphabets of the Renaissance. Hebrew itself is the parent, and the letters also travelled under other names, Tory captioning them 'Lettres Chaldaiques'. Pantheus set the script beside Enochian, the writing he gave to Enoch, as one of a trio of entrusted scripts.

Today

The alphabet has a second life in fiction. It appears on screen in the film The Blair Witch Project, and it turns up again in An Enemy at Green Knowe, a novel by the British writer Lucy Boston that belongs to her Green Knowe series. The old books survive as well: Agrippa's occult philosophy and de Balmis's grammar now circulate in digital editions, where the script can still be studied letter by letter.

Questions people ask about Transitus Fluvii

Good reading and sources

• Transitus Fluvii on WikipediaEncyclopedia
• More photos on Wikimedia CommonsPhotos and video
• Wikidata recordOpen data