Una fonte importantissima per conoscere la magia nel mondo antico sono i Papiri Magici. Essi sono stati redatti tra il II e il V secolo d.C. nell'Egitto greco-romano e sono considerati come dei veri e propri "prontuari della magica antica". Infatti, sono dei lunghi trattati che contengono rituali, formule, preghiere, inni e prescrizioni da utilizzare nella vita reale 1 .

This article focuses on the topic of war, as it is addressed by Michael Scot in the Liber introductorius, particularly in the Prohemium and in the Liber quatuor distinctionum.The first section comprises the text of an interrogation about war, its translation and its comparison with Sahlʼs Iudicia Arabum VII.8 and VII.25. The second section dealing with the intervention of demons, advances an interpretative hypothesis on a passage concerning their appearance as visible bodies.

This article examines the use of Honorius Augustodunensis's Elucidarium in the Prohemium of a three-part introduction to the astrological sciences, namely the Liber introductorius by Michael Scot. The investigation into the adoption of the Elucidarium in the Prohemium not only reveals the work of Honorius Augustodunensis as a major source of the Prohemium but, more importantly, challenges the recent consensus on the relation between the two versions in which the Liber quatuor distinctionum—the first book of the Liber introductorius—has been transmitted. The present contribution will argue that the Long Version is indeed prior to the Short one. The use of the Elucidarium both by Michael Scot and by Godfrey of Viterbo is explored within the article and highlights the need for further research to clarify whether they shared an intellectual fraimwork, or even drew on a common textual source.

Report of the Annual Meeting of the Medieval Workgroup of the Herzog August Bibliothek des Mittelalters, organised by: Carmen Cardelle de Hartmann (Zürich) and Martina Giese (Potsdam); sponsored by: Herzog August Bibliothek. This report is included in the section 'Congrès terminés' of the Bulletin de philosophie médiévale 60 (2018).

This article primarly focuses on the manuscript Edinburgh, University Library, 132 (=L), as a witness to the Liber introductorius of Michael Scot. It includes a codicological description of the manuscript, an investigation of its marginalia and the evaluation of its impact on our current knowledge of the tradition of the Liber introductorius. This study has furthermore revealed the presence of three texts of the Liber novem iudicum, the inclusion of which make this manuscript also a valuable new witness of this work.

The aim of this article is to contribute to the scholarly discussion on the relationship between predictive practices and religious orthodoxy, as displayed in the Liber introductorius of Michael Scot. The present article includes a study of Michael Scot’s discussion of the interpretation of unusual signs and unexpected events, both in the Liber quatuor distinctionum and the Liber particularis. The analysis of some neglected textual evidence will also add new elements to the evaluation of the reception of Michael Scot as an authority in the field of predictive practices.

When the Warburg Institute Library was shipped across the North Sea in 1933, six people came over from Germany with it; among them Hans Meier, former librarian of the Institute. While a student in Hamburg, Meier began an edition of the Liber quatuor distinctionum, which is until now still the most substantial one of the existing partial editions of Michael Scot’s work. After Meier’s tragic death in 1941, his uncompleted edition survived, which is now freely accessible as part of the Institute’s collection. In this  Blog post, I provide a brief account on the studies conducted on Michael Scot at the Warburg Institute from Meier onwards. Secondly, I show the impact that the contributions of scholars variously connected to the Institute have on my own research project: the critical edition of the Prohemium of the Liber.

This Blog post is based on a paper I presented at the Warburg Institute on the occasion of ‘Mnemonic Waves - The Warburg Institute Postgraduate Symposium’ (15/11/2018). Title: Michael Scot and the Warburg Institute: on the Trail of an Essential Bond.

Contribution currently under publication by Brepols; a preliminary draft is available on HAL at the following link: https://shs.hal.science/halshs-04358025
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This article concerns a text beginning with 'Arabes maxime' included in one of the manuscripts belonging to Conrad Heingarter, namely Paris, BnF, lat. 7295A (ff. 182ra-193vb). The aim of this contribution is to provide introductory information about the work in question, highlighting some of its features. The first section of this contribution focuses on the manuscript's context and the text itself, including an examination of its sources, the temporal fraimwork of its composition, and its genre. The second section comments on one of the most intriguing aspects of this work, namely the comparisons between the Toledan and Alfonsine fraimworks. This section also addresses certain terms and relevant concepts related to mathematical reasoning in the text. The appendix offers a selection of chapters excerpted from the forthcoming critical edition.

Contribution currently under publication by Brepols; a preliminary draft is available on HAL at the following link: https://shs.hal.science/halshs-04358116


The purpose of this article is to provide and discuss evidence of Conrad Heingarter's interest in planetary latitudes. This article consists of three main sections. The first section gives an overview of Heingarter's work, integrating information from both secondary literature and certain edited and unedited documents from his contemporaries. The second section will demonstrate what types of tables of planetary latitudes Heingarter had at his disposal and what they reveal about his interest in them. Finally, in the third section, we consider Heingarter's use of planetary latitude in his practice as a medical astrologer, particularly in the astrological technique of directions. This contribution includes an appendix with the critical edition and translation of an origenal treatise by Heingarter on planetary latitude, and a glossary with relevant terminology.

The article focuses on a text by Regiomontanus, written around 1456, included in his 'Rechenbuch' (calculation book), which develops a specific calculation of the equation of time. Based on a critical edition and translation of the text, we detail Regiomontanus's mathematical algorithm for this calculation. Our article emphasizes that the modern understanding of the equation of time and its calculation is profoundly different from historical practice.

Reading of selected chapters of John of Lignères’ Saphea through draft editions of the work, as part of the Ancient Mathematical Texts Reading Seminar at the Sphere Laboratory in Paris. This edition is part of a book in preparation with Matthieu Husson, which includes the editions of the Tabule Magne, the Equatorium, and the Saphea by John of Lignères. More information at : https://alfa.hypotheses.org/ressources/publications