From 1643 onwards – almost until the ends of their lives –, the philosopher and astronomer Pierre Gassendi (1592–1655) and the mathematician and astrologer Jean-Baptiste Morin (1583–1656) were engaged in a bitter polemic. Scholars in the history of early modern science consider this polemic crucial both for understanding the debate over Galileanism and Copernicanism in France, and for understanding

This article examines the transformation of the “heart of the world” concept and its influence on the understanding of what causes planetary motion. It begins with Aristotle’s conception of the sphere of the fixed stars and that of commentators such as Simplicius, Averroes, and Aquinas. The focus then shifts to the notion of a mobile Sun positioned between the upper and lower planets in the geocentric

According to the standard view, Borelli was a strict mechanist who sought to explain organic processes by resorting to invisible mechanisms. This paper aims to show that his outlook on living organisms as contained in De motu animalium was far more nuanced than historians have maintained. Borelli resorted to vis motiva as the source of activity of corpuscles, a notion that was at odds with strict mechanism

This essay focuses on Jewish practical kabbalistic books of recipes that were produced in early modern East-Central Europe. These handwritten sources document the Jewish engagement with practical forms of expertise, which were informed by the theoretical foundations of kabbalistic knowledge. Through two case studies, the article highlights Jewish vernacular ideas about nature and matter, and the techniques

Luca Pacioli (ca. 1447–1517) is widely considered a central figure in the Italian Renaissance, particularly in the history of practical mathematics. The perspectival representations of geometrical bodies that Leonardo da Vinci drew for Pacioli’s Compendium de divina proportione are, in turn, often singled out to illustrate the relationships between the visual arts and mathematics in the late fifteenth

In this paper I focus on the dietetic discussion at the end of the Timaeus (86b–90d) and read it against the background of the medical dietetics of its day. I try to show that Plato’s version of dietetics is deeply rooted in the preceding medical tradition and that it draws in particular on ideas attested in the Hippocratic treatises On Regimen and Airs, Waters, Places. On the other hand, I also argue

The paper explores Galen’s notion of the chreia of bodily parts and activities, and the method of its discovery against the Aristotelian background. It argues that the chreia of an object π (a bodily part or activity) is a connection between the activity ε for the sake of which π has come into existence, and the attributes of π without which ε would cease to exist or would not be as good. The discovery

Don Meir Alguades’s Segulot Muvḥanyot, extant in Parma, Biblioteca Palatina MS 2474, offers a rare insight into two converging questions in the history of late-medieval medical practice: how was practical knowledge transmitted? And to what extent did this practice draw on medical theory? The present article closely examines the various features of this collection – namely, the author to whom it was

The thesis of this paper is that, in De Caelo I.2, the introduction and differentiation of simple bodies is achieved entirely by differentiating simple motions. This runs counter to the traditional interpretations of De Caelo I.2, which consider how, and how completely, Aristotle uses the differentiation of simple magnitudes to differentiate simple bodies, and which assume that he introduces the notion

This essay offers a new reading of Galileo’s most celebrated anagram, incorporating both the prehistory of his late-1610 disclosure concerning the moon-like phases of Venus, and the awkward “leftover letters,” o and y, of the eventual cypher. It argues for a sustained analogy between components of the optical instrument, musical instruments, and particular anatomical structures described by Galen and

Sébastien Le Clerc was born into a family of goldsmiths in Lorraine, and received classical artisanal training. Yet over the course of a highly successful career as an engraver, he also became a widely published scientific author. This paper argues that geometrical skills played a key role in the dual development of Le Clerc’s career, and in his striving for recognition as a man of letters, as well

In sixteenth-century Lisbon, Aires Vaz and Manuel Rodrigues were summoned to the Inquisition on account of their astrological practices. Records of the trial of Vaz and Rodrigues provide valuable information regarding the training and practice of an astrologer in sixteenth-century Portugal. Prior to this study, however, our knowledge on these matters was scarce and mostly indirect. In this article

The article sheds light on the invention of early modern precision instruments and their application in medicine, by analysing a neglected work by one of the Italian pupils of the physician Santorio Santori (1561–1636). This source provides vital information on Santorio’s experimental sample, and on the practical use and dimensions of instruments such as thermometers, hygrometers, pulsimeters and precision

The goal of this paper is to show – by way of a case study – how the contents of Proclus’ Commentary on the First Book of Euclid’s Elements were incorporated into university teaching in the sixteenth century. I analyse the impact of Proclus on the works of the Spanish mathematician and university professor Jerónimo Muñoz (ca. 1520–1591). In order to do so, I examine two manuscripts: Adnotationes in

Two Latin manuscripts in Oxford and Florence preserve diverging recensions of a previously unnoticed astronomical treatise beginning Infra signiferi poli regionem (Oxford recension) or Circulorum alius est sub quo (Florence recension). It can be shown that this anonymous text was originally intended to accompany the Tables of Marseilles in Raymond of Marseilles’s twelfth-century Liber cursuum planetarum

According to Avicenna, the perfect (or complete) disposition (istiʿdād kāmil/tāmm) turns prime matter, which is potentially receptive to every form (or power, or quality), into complected matter, which is endowed with uniform quality. The latter, i.e., complexion (mizāǧ) or complexional form (ṣūra mizāǧiyya), is suitable to receive some particular form (or power, or quality) and not another. The question

This article uses Galen’s De complexionibus and its reception as a thread to examine the part played by the sense of touch in the assessment of bodily mixtures. According to Galen, complexions were assessed by touching patients with the skin of the palm of the hand because it is “at the precise midpoint between all the extremes” and, thus, well-mixed. This article examines how this extraordinary claim

Avicenna, in Book I of the Canon, within the context of his general doctrine of complexion, presents the eight modes of equality (modi aequalitatis) that concern specific or individual complexions. There he states quite clearly that each individual within the human species possesses a complexion that belongs to that individual exclusively, and with which it is impossible to associate another individual

This article surveys the long story of complexio in physiognomic discourse, from Galen’s De complexionibus (De temperamentis) to the great physiognomic manuals of the fifteenth century by Rolandus Scriptoris and Michele Savonarola. We linger, along the way, on various physiognomic texts, most notably the contributions to learned physiognomic discourse of Michael Scotus, William of Aragon, and John

By focusing on the concept of ‘complexion’ in the major medieval Latin commentaries on Aristotle’s so-called De animalibus, this paper identifies and analyzes a case of the use of the concept of ‘complexion’ outside the medical context or, more precisely, at the intersection of natural philosophy and medicine. The preliminary survey undertaken in this paper suggests that ‘complexion’ was a key concept

According to the medical theory of the Middle Ages, every individual had a general complexion for its whole body, but at the same time each organ had a specific complexion, determined by its anatomy, its function, and, of course, the individual. The problem of the relationship between those two types of complexion was, therefore, crucial for the medical practitioner: could a shift in the complexion

Antonio da Parma (d. 1327) was a philosopher and physician, active in Bologna in the early fourteenth century, and associated with so-called “Bolognese Averroism.” His philosophical works are increasingly better documented. While his medical works are much less studied, his commentary – written between 1310 and 1323 – on the first book of Avicenna’s Canon, had a considerable influence on later commentators

The constitution of air served as a key concept for investigations into epidemic disease in sixteenth-century Italy. Its roots stem from the Hippocratic Corpus and Galen’s interpretation of it. In these ancient works, the constitution of air was directly tied to the temperaments of the seasons and winds. Renaissance physicians, such as Giambattista Da Monte and Girolamo Mercuriale, used these texts

A number of ancient philosophers showed a keen interest in understanding whether moral development and the acquisition of virtue is in any way affected by the material constitution of human bodies. Moral education and socialisation were conceived of as having a significant impact on the resulting behaviours, while individual natures, thanks to their special physiological characteristics, were frequently

This article focuses on the use of the theory of complexions made by medieval commentators to explain the pathologies or dysfunctions of memory as outlined by Aristotle in his treatise on Memory and Reminiscence. More particularly, it focuses on the Aristotelian issues of the young and the old, the slow- and quick-witted, condensed in the Latin commentaries into an aporia that we will call the “aporia

According to the medical tradition, the temperament of bodies came from the balance of their primary qualities – hot, cold, dry, and moist. However, physicians associated additional sensory properties with temperament in the field of pharmacology. These sensations included taste, color, and odor, which allow an appraisal of the constitution and active powers of drugs. The present paper examines this

In medieval natural philosophy and medicine, magnetic attraction was the most commonly invoked example for the effects of so-called ‘occult qualities’ or ‘occult powers.’ According to this conception – which dates back to Galen, Alexander of Aphrodisias, and Avicenna – magnetism was caused by an insensible quality and not, therefore, by one of the four primary qualities (hot, cold, wet, dry). Already

In the poem La Luce, composed in 1685 and dedicated to Christina of Sweden, Giovanni Michele Milani propounds a mechanical and vitalist (meta-)physics of light that complies with Christian tenets by adopting a peculiar version of Democritean atomism. His lecture for the Roman Simposiaci Academy indicates the extent of Milani’s dissatisfaction with Aristotelian philosophy. While he attended the Physico-mathematical

In 1693, professor Jan František Löw von Erlsfeld published a reading list for the students of medicine at Charles-Ferdinand University in Prague. The list records over 350 authorities from Aristotle to Johann Zwelfer and offers a unique insight into the structure of medicine and knowledge-sharing. It also points towards the fact that the Prague faculty was developing intellectual connections with

This study reconsiders Francis Bacon’s ideas on spirits, death, and the prolongation of life through a chronological examination of his works. His conception of death has often been considered unique because it presupposed a common material basis for the dissolution of inanimate things and the death of human beings. However, his focus on this commonality seems to have faded gradually – though not completely

In articulating the uses of their art, late-medieval astrologers often invoked the maxim that “the wise man will rule the stars” (sapiens dominabitur astris). However, it is by no means clear whether this invocation sought to emphasize ‘domination’ over the natural and social world, or the ontological self-government that is at stake in the pursuit of ‘wisdom’. Many historians have interpreted the

In presenting self-preservation as the most general law of nature, set at the summit of the structure of the natural world, Francis Bacon characterized the universal appetite for self-preservation as an innate instinct which, in the case of living beings, is primarily associated with the emotion of fear. Bacon’s philosophy offers several techniques of self-care to manage the fear of accidents of fortune

This article examines the ways in which, in the last centuries of the Middle Ages, the emergence of a literature aimed at preserving health by means of dietary rules or advice establishes a connection between the physician’s authority in matters of health and the capacity of patients and readers to take care of themselves when they are in good health. Born at the same time of social demand and medical

Girolamo Cardano (1501–1576), a preeminent natural philosopher, physician and astrologer of the sixteenth century, is known for the great diversity of his intellectual pursuits and writings. Across much of his work, we find an overriding concern with the dangers of human life, how those dangers might be foreseen, and how their effects can be mitigated. This essay begins by considering the epistemic

Zusammenfassung Cabanis’ „Kunst der Koexistenz“ des Menschen in sozialen Ordnungen beruht auf dessen „tierischer Existenz“ als ein individuiertes physiologisches „Gesamtsystem“, das sich seinerseits aus verschiedenen, interagierenden „Reaktionszentren“ zusammensetzt und in einem bestimmten Verhältnis zur es umfassenden „Außenwelt“ steht. In diesem Aufsatz untersuche ich die Doppelstruktur physiologischer

While most Renaissance scholars working on compendia of learning, geography, surgery, legal history, art history, the Reformation, and botany will be familiar with the name of Johann Schott, few have appreciated the range and impact of the Strasbourg printer’s publications. Here I discuss a handful among the over two hundred books and other materials he printed: Gregor Reisch’s Margarita Philosophica;

This article focuses on the analysis of a medical consilium about a rhino horn written around 1570 by the Portuguese royal physician Jorge Godines to the Spanish ambassador in Lisbon. It sheds light on the processes of knowledge production concerning rhino and unicorn horns in early modern Lisbon. Through micro-historical analysis, we will demonstrate how demand, supply, and the availability of specimens

The Aristotelian professor of natural philosophy and courtier at the Medici in Florence, Girolamo Borri, developed a theory based on heat to explain the tidal motions of the sea. In his dialogues on this phenomenon, he deemed that tides follow from the ‘moderate’ simmering of the waters as an effect of lunar light. His tidal theory displaced the theory of the Moon’s distant action on terrestrial waters

Action at a distance was one of the key features of astrology. Once a thriving discipline, astrology in the early modern period entered a crisis that ultimately culminated in its marginalization from the domain of scholarly recognition. Critics of astrology took issue, among other things, with the causative process of the supposed astrological action at a distance – traditionally based on the light

Throughout his writings, Francis Bacon shows a great interest in the power of the imagination, both on other minds and on other bodies, a crucial part of natural magic. Convinced of the overall value of magic, Bacon nevertheless takes issue with the corrupt state into which he saw this discipline as having descended, overrun with false theories and invented stories. Bacon’s reform of experimental natural

In 1558, the famous natural magician Giambattista della Porta was the first to allude to a method of transmitting secret messages by using manipulated magnetic compasses. Soon thereafter, this idea, known in modern historiography as ‘magnetic telegraphy’, was spelled out and advertised by many early modern scholars as a promising technology of communication by action at a distance. In 1609, Daniel

The history of the scientific description and conceptualisation of the condition named “hydrocephalus” goes back to Graeco-Roman antiquity. The present article provides an extensive examination of the ancient Greek and Latin texts on the topic, including the only extant medical papyrus dealing with it. A thorough investigation of these primary sources allows us to expand our knowledge of this disorder

Geographic discoveries in the sixteenth century, alongside methodical reforms in the practice of natural history, created a situation that was conducive for information exchange between European agents and local informants and scholars outside of Europe. These contacts, in turn, acted as a strong stimulus for change in European natural history. Until now, research on this process of transformation

Based on the analysis of Tycho Brahe’s hair and bones for the presence of elevated levels of the elements iron (Fe), cobalt (Co), arsenic (As), silver (Ag) and gold (Au), this paper tries to find their likely sources and to judge whether the unusual concentrations in which they were found could have been due to some form of medication. On the basis of an osteopathological study, an attempt is made

This article focuses on three unique products circulating in the eighteenth-century marketplace – castor, mammoth tusks, and asbestos – and highlights the role of naturalists working for the Royal Society in London and at the Russian Academy of Sciences in St. Petersburg in promoting the consumption of these goods. Naturalists’ scientific investigations of these products were essential to distinguish

This article deals with early modern surgical case literature, more specifically with printed collections of observations in surgery. It examines the work of late seventeenth- to late eighteenth-century Italian practitioners from different backgrounds and of different statuses, and highlights the complexity of cognitive and social purposes pervading the genre, besides that of sharing empirical knowledge

Rudolf Schuessler has argued that sixteenth-century thinkers developed a concept of equal probability that was virtually absent before 1500 and that may have contributed to the birth of mathematical probability shortly after 1650. This note uses additional textual evidence to argue that the concept of equal probability was in fact generally available to medieval thinkers. It is true that ascriptions

In his Confession of Faith, Francis Bacon makes the striking claim that the laws of nature have changed over time. While the connections between this claim and theology are outlined in the Confession itself, it is not clear what role the proposal of mutable laws of nature might play in Bacon’s program of reform for natural philosophy. I argue that the notion that the laws of nature have changed over

In examining the roles of the shadow (umbra) in medieval science, this paper analyses a hitherto unstudied early fourteenth-century optical treatise with the incipit Perspectiva cum sit una (PCSU), which, on the basis of medieval evidence, may arguably be attributed to Thomas Bradwardine. The third part of this treatise, on shadows, presents the doctrine of three shadow shapes – a doctrine which was

This article examines the use of astronomical observations of the austral sky in treatises written by Italian astrologers during the sixteenth century. The references made to navigators’ accounts and diagrams of southern stars in the works of Agostino Nifo, Girolamo Cardano, Francesco Giuntini and Francesco Pifferi show their attempts to include previously unknown stars in Ptolemaic framing. Although

The translatio vetus of Aristotle’s De longitudine et brevitate vitae – a medieval text also known under the title of De morte et vita – was commented upon by the Oxford Master Adam of Buckfield in the thirteenth century. Inventories record two commentaries, which are either anonymous or unclearly ascribed. These writings are usually attributed by modern scholarship to Buckfield, though not always

A few decades ago, William Newman drew attention to the significance of the medieval alchemical debate over the possibility of transmuting metals, which was closely connected to the Avicennan phrase known as Sciant artifices. Newman pointed to Albert the Great (ca. 1200–1280) as one of the participants in this debate. While Newman has covered Albert’s engagement with this Avicennan dictum only partially

This contribution examines the important role that medical experts and expertise played at convivial networking events in the High Roman Empire, as imagined by a non-specialist in the field, viz. the famous Platonist intellectual Plutarch of Chaeronea (ca. 45–120 CE). An analysis of a number of medical problems discussed in his Table Talk will yield fresh insights into the social and intellectual role

From their first arrival in England in 1224, the Franciscans were concerned with the treatment of ill-health for both practical and spiritual reasons. Many brothers fell sick, and their illnesses required both interpretation and treatment. Some friars practised healing on their brethren and on lay patients. This article will focus on the question of the relationship between the religious vocation of

This article explores a set of medications, called les remèdes des pauvres, that were distributed from the late seventeenth century onward to the sick poor of rural France and to French missions abroad. Although it was eventually absorbed into the French state as a form of royally sponsored poor relief, this drug distribution network began in 1670 as a distinctly ecclesiastical endeavour, aimed at

This article examines the translation, circulation, and adaptation of the medical opinion of Spanish physician Nicolas Monardes (d. 1588) on tobacco in the Ottoman Empire. In addition to medical and encyclopedist authors, the spread of new medical knowledge in learned and eventually popular registers was the result of the efforts of religious authorities. These latter authorities, namely jurists, Sufis