Buer is a President of the Ars Goetia, ruling 50 legions of spirits.
Key facts
| Rank | President |
|---|---|
| Legions | 50 |
| Powers | Healing, Knowledge & sciences, Familiars |
| Enn (modern chant) | «Erato on ca Buer anon» |
| Sources | Ars Goetia, Pseudomonarchia |
| Seal no. | 10 / 72 |
| External IDs | Wikidata · Wikipedia |
On this page
How it appears
He appears when the Sun is in Sagittarius, in the form of an archer (Sagittarius). The «wheel form» is later iconography (Collin de Plancy, 1863), not from the ancient source.
What you ask of it
He teaches natural and moral philosophy, logic, and the virtues of all herbs and plants. He heals all diseases of the body and gives good familiars.
Provenance
Buer is already in Weyer as a great president who teaches philosophy, logic, the virtues of herbs, and healing. The Ars Goetia incorporated him as the tenth spirit and preserved his specific note of appearance when the Sun is in Sagittarius. Already attested in the Livre des Esperitz (15th c.) as «Gemer (f180v)».
The seal: printed edition and facsimile
Buer's main seal follows the printed Mathers–Crowley (1904) form; the Sloane MS 2731 manuscript facsimile is shown separately for comparison.
The main image and SVG/PNG downloads reproduce the printed form of S. L. MacGregor Mathers and Aleister Crowley's 1904 edition, using the normal vector pack documented on Wikimedia Commons (public domain/CC0). The Sloane MS 2731 facsimile remains separate for comparing manuscript variants; it is not used as the main image.
The FULL manuscript facsimile («Lemegeton, Clavicula Salomonis», Sloane MS 2731) is in our library; the original is held at the British Library (Sloane MS 2731).
Documented ancient datum
The «wheel form» comes from Collin de Plancy (1863), not from the ancient source (an archer/Sagittarius).
How it is summoned
In antiquity
In addition to the common procedure, the source preserves: a condition of appearance.
Ancient operation: common procedure plus the documented detail in this entry.
- Trace the circle, arrange the triangle of art, and wear the seal of Buer as a lamen before beginning the call.
- Choose the temporal condition transmitted by the Ars Goetia: the Sun in Sagittarius, for there Buer is said to appear.
- Recite the ordinary Goetic conjurations to call him to visible manifestation in the triangle.
- Treat him as a great president and limit the petition to his ancient offices: moral and natural philosophy, logic, the virtues of herbs and plants, healing, or good familiars.
- Avoid adding modern correspondences of candles, planets, or offerings, because they do not belong to his ancient entry.
- Conclude with the license to depart, dismissing him in peace according to the common Goetic closing.
Source: Ars Goetia (17th c.); already in Weyer’s Pseudomonarchia Daemonum, 1577
The common Goetic operation also adds, when needed: to constrain a resisting spirit (Wellcome MS 110, c74–c78), to show it the Pentacle of Solomon once manifested (Ars Theurgia-Goetia), to work in its planetary hour and day (by rank), and finally to give it licence to depart —and never before (Wellcome MS 110, c53). Practise the full rite at The Practitioner's Table.
What is the “chain of spirits”?
Modern · not ancient
- Print or draw its seal and place it before you on a clean surface.
- Light a candle and, if you wish, some incense; still your mind and set your intention.
- Intone its enn softly and repeatedly, eyes on the seal, until you feel a shift in the air.
- State your request clearly and respectfully, not as a command.
- Give thanks, let the candle burn down a little and close; modern practice is devotional, with no coercive conjuration.
Enn (modern chant): «Erato on ca Buer anon»
Source: Enn of modern demonolatry (lists disseminated by S. Connolly, The Complete Book of Demonolatry, 2006)
Today he is frequently invoked for health, herbalism, and philosophical study; the modern chant does not appear in the ancient grimoires.
Modern experiences (personal gnosis)
In modern demonolatry, particularly according to S. Connolly's 'The Daemonolatry Goetia', contemporary practitioners describe Buer as a pragmatic teacher whose presence feels warm, grounded, and sometimes strict. Today, he is typically worked with not only for herbal knowledge or traditional physical healing, but also for psychological self-healing and the correction of harmful habits. Those who contact him state that his temperament is straightforward and direct, offering clear guidance to those seeking to improve their overall well-being.
Personal gnosis (UPG): how contemporary practitioners say they experience it. This is subjective experience, not a historical source or doctrine; it does not come from the ancient grimoires and may not be real.
Source: S. Connolly, 'The Daemonolatry Goetia' (2010), y consensos de gnosis personal no verificada (UPG) en la demonolatría contemporánea.
Frequently asked questions
Who is Buer?
Buer is one of the 72 spirits catalogued in the Ars Goetia (the first book of the Lemegeton, 17th c.) and in Weyer's Pseudomonarchia Daemonum (1577); it is listed with the rank of President. It is not a deity or a biblical figure: it is an entry in these historical spirit-catalogues.
What is the sigil (seal) of Buer?
The seal image of Buer that we display and offer for download follows the printed Mathers–Crowley (1904) form, using the normal vector pack documented on Wikimedia Commons (public domain/CC0). The Sloane MS 2731 manuscript facsimile is provided separately because Lemegeton witnesses preserve variants.
What is Buer's rank in the Ars Goetia?
Buer is a President, ruling 50 legions of spirits according to the Lesser Key of Solomon.
How do you summon Buer?
According to the ancient sources (the Lemegeton, the Pseudomonarchia Daemonum), Buer is summoned with the goetic rite: the Circle and the Triangle of Art are traced, its seal is engraved and worn, the candles are lit and the conjuration is spoken by the divine names; if it delays, it is constrained, and at the end it is given the licence to depart. This is historical-documentary material, not a how-to for real summoning.
What does Buer do? What is it invoked for?
He teaches natural and moral philosophy, logic, and the virtues of all herbs and plants. He heals all diseases of the body and gives good familiars.
What sources does Buer come from?
Buer is already in Weyer as a great president who teaches philosophy, logic, the virtues of herbs, and healing. The Ars Goetia incorporated him as the tenth spirit and preserved his specific note of appearance when the Sun is in Sagittarius.
What is the enn (chant) of Buer?
The enn of Buer circulating today is «Erato on ca Buer anon». It is a MODERN demonolatry chant (late 20th c.); it does not appear in the old grimoires.
Of the same rank · President
Of the same power · Healing
→ Where does «your demon by birthdate» come from? See how the different systems distribute the 72 spirits: Goetia Correspondences.
grimorium.lat · Documentary library of ritual magic, demonology and historical grimoires