Tholosanus - Syntaxeon Artis Mirabilis - 1610

ASTRI, MAGIC, AND DEMONOLOGY: THE OCCULT ENCYCLOPEDIA THAT THE INDEX WANTED TO BURN
Zetzner: the great European publisher of heresy, alchemy and magical sciences - Science, magic, and demonology: a bold entanglement to set ablaze according to the Parma Index of forbidden books of 1580.
Monumental late-Renaissance encyclopedic compendium, Pierre Grégoire’s Syntaxeon artis mirabilis represents one of the most ambitious attempts to order all human knowledge within a single systematic structure. The work fuses Aristotelian philosophy, mathematics, cosmology, forensic astrology, music, medicine, and natural magic into a vast architecture of knowledge aiming to demonstrate the hidden harmony of the cosmos. In this synthesis, typical of Renaissance encyclopedism, scientific disciplines and liminal knowledges coexist within the same conceptual framework: demonology, astrology, and natural magic are not treated as marginal curiosities but as integrated elements in the universal understanding of nature. The text explicitly promises to provide a method capable of discussing any topic and to offer a synthetic knowledge of all things. It is precisely this totalizing ambition and the inclusion of knowledge deemed dangerous that made the work suspect to ecclesiastical authorities, who placed it on the lists of forbidden books. The 1610 edition, printed in Cologne by the great humanist publisher Lazarus Zetzner, is set in the context of Europe’s extraordinary print era under Protestant influence, which favored the diffusion of scientific, Hermetic, and philosophical texts intended for the vast international scholarly community.
MARKET VALUE
Copies of the Zetzner edition of 1610 appear with some regularity on the antiquarian market but often in incomplete conditions or with missing plates. Complete and well-preserved specimens generally range from €2,200 to €3,500, with higher values for copies complete with folded plates preserved in contemporaneous binding.
PHYSICAL DESCRIPTION AND CONDITION
Two parts in one volume. Two title pages with the woodcut typographic device of Lazarus Zetzner depicting the allegorical figure accompanied by the motto “Clementia immutabilis.” Text set in two columns. Presence of plates folded several times containing diagrams and synoptic tables intended to visualize the structure of the sciences and disciplines treated in the work. Contemporary full parchment binding. Physiological browning.
Pp. (2); 12nn. 99; 5nn - 2nn. 554; 46nn. (2).
In old books, with a multi-century history, some imperfections may be present and not always noted in the description.
FULL TITLE AND AUTHOR
Petrus Gregorius Tholosanus.
Syntaxeon Artis Mirabilis, in libros XL digestarum, tomi duo: per quas de omni re proposita multis et prope infinitis rationibus disputari aut tractari, omniumque summaria cognitio haberi potest. Cum indicibus locupletissimis.
Coloniae, sumptibus Lazari Zetzneri, 1610.
CONTEXT AND SIGNIFICANCE
The Syntaxeon artis mirabilis constitutes one of the most ambitious philosophical and scientific encyclopedias of late-Renaissance Europe. The work is organized into forty books and aims to offer a system capable of ordering all human knowledge through a logical and dialectical structure. The author’s stated objective is to provide a tool that allows discussion of any topic with method, compiling and synthesizing all major known disciplines.
Within this universal architecture space is given to cosmology, mathematics, music, medicine, natural philosophy, and theology, but also to domains that at the time lay at the border between science and occult knowledge, such as astrology, natural magic, and demonology. The presence of these disciplines reflects the Renaissance conception of the cosmos as a harmonious system of correspondences between macrocosm and microcosm, in which natural, spiritual, and celestial forces participate in the same order.
The folded synoptic plates included in the work represent one of the most original aspects of Grégoire’s project. They organize the sciences according to hierarchical schemes and diagrams that allow visualization of the entire knowledge system, surprisingly anticipating some modern encyclopedic and classificatory structures.
The work’s dissemination is closely tied to the activity of the publisher Lazarus Zetzner, one of the most important figures in learned publishing between the 16th and 17th centuries. His printing workshop, active between Strasbourg and Cologne, became one of Europe’s main centers for publishing scientific, philosophical, and esoteric texts. Zetzner published numerous works tied to the Hermetic tradition and natural philosophy, including famous alchemical collections such as the Theatrum Chemicum.
The Rhine cities, thanks to their geographical position and relative religious plurality, offered a more open editorial environment than territories subject to stricter censorship. This context favored the circulation of encyclopedic and speculative works that would have been difficult to print elsewhere. Nevertheless, texts such as the Syntaxeon aroused suspicion from ecclesiastical authorities and were placed on forbidden book lists, as evidenced by the work’s presence in the Parma Index of 1580.
The book thus represents one of the last great examples of Renaissance encyclopedism, a historical moment when knowledge was not yet divided into modern disciplines but conceived as a unified system encompassing philosophy, natural sciences, and esoteric traditions.
BIOGRAPHY OF THE AUTHOR
Pierre Grégoire (Petrus Gregorius Tholosanus) was born in Toulouse in 1540 and died in 1597. A jurist, philosopher, and humanist, he taught law and philosophy at several European universities. He authored numerous legal and philosophical treatises, but his fame is tied above all to the Syntaxeon artis mirabilis, an ambitious attempt to build an encyclopedic system capable of understanding all human knowledge. His thought represents one of the last examples of Renaissance encyclopedic culture, in which Aristotelian tradition, natural philosophy, and Hermetic speculations coexist within a unified worldview.
PRINTING HISTORY AND CIRCULATION
The Syntaxeon artis mirabilis was first published in the 16th century and underwent several reissues and revisions over time. The 1610 Cologne edition printed by Lazarus Zetzner belongs to the period of greatest diffusion of the work in northern Europe. Zetzner was one of the leading editors of scientific and philosophical texts of the era and played a decisive role in disseminating works related to natural philosophy, alchemy, and the Hermetic tradition.
BIBLIOGRAPHY AND REFERENCES
VD17 23:243522K.
WorldCat OCLC records for Syntaxeon artis mirabilis (Cologne, Zetzner, 1610).
Adams, Catalogue of Books Printed on the Continent of Europe 1501–1600, G-1210 (for earlier editions).
Caillet, Manuel bibliographique des sciences psychiques ou occultes, no. 4694.
Thorndike, Lynn, A History of Magic and Experimental Science, vol. VI, pp. 335–338.
Benzing, Josef, Die Buchdrucker des 16. und 17. Jahrhunderts, section on Lazarus Zetzner.
VD17 – Verzeichnis der im deutschen Sprachraum erschienenen Drucke des 17. Jahrhunderts.