For generations, African beliefs and practices regarding witchcraft and traditional healing have been located at the intersection between the natural world and the supernatural world. Despite the impact of both colonialism and, in the contemporary context, modernization, the complex interplay between these worlds has not been reduced. The interaction between nature and religion, as a facet of culture, has long been a subject of inquiry in anthropology, and nowhere is this more evident than in the study of African witchcraft and (...) traditional healing. A distinct relationship exists between witchcraft beliefs and traditional healing methods. This relationship brings these two aspects of African culture together in such a complex manner that it is difficult to attempt to understand the dynamics of African witchcraft without referring to traditional healing methods, and vice versa. In this paper, the authors outline the various ways in which African witchcraft beliefs and practices, as well as traditional healing beliefs and practices, interact within the nature/culture domain. This interaction will be conceptualised in a Merleau-Pontian sense, focusing on the indeterminacy of the natural and supernatural worlds. In its presentation of an essentially anthropological case study focused on southern Africa, the paper draws on various ethnographic examples of African communities in the southern African context. Indo-Pacific Journal of Phenomenology , Volume 7, Edition 1 May 2007. (shrink)

In this article, I discuss Petrus van Musschenbroek's research on the strength of materials in relation to his methodological views. In the latter, van Musschenbroek emphasizes the importance of repeating and varying experiments. This is related to his views on the complexity of nature, which play a role in his views onmathematics, laws of nature, causes, and experimental method. In each case, the construction of an (experimental) history is presented as a first step in experimental philosophy, necessary to deal (...) with the complexity of nature. The experimental research on the strength ofmaterials can likewise be seen as aimed at the construction of an (experimental) history. His experimental practice takes the form of a systematic variation of parameters and the performance of an extensive series of experiments on different kinds of substances. In his experimental reports, van Musschenbroek repeatedly points to the utility of his experimental results. This utilitarian attitude is typical for the experimental history literature as discussed by Klein. Van Musschenbroek himself also presents his work as an experimental history. However, unlike the examples discussed by Klein, van Musschenbroek's experimental history is characterized by a systematic experimental method. I argue that this method can be seen as an example of exploratory experimentation in Steinle's sense. Finally, I suggest that with its emphasis on the nature and properties of specific materials, it could be fruitful to read van Musschenbroek's experimental history in light of the emergence of engineering as a discipline in the eighteenth century. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:A Philosophical Path for Paracelsian Medicine: The Ideas, Intellectual Context, and Influence of Petrus Severinus (1540–1602)Dane T. DanielJole Shackelford. A Philosophical Path for Paracelsian Medicine: The Ideas, Intellectual Context, and Influence of Petrus Severinus (1540–1602). Copenhagen: Museum Tusculanum Press, 2004. Pp. 519. Cloth, $83.00.The Paracelsian and Danish royal physician Petrus Severinus complained, "If we can make more potent [drugs], extracted from metals and minerals,... I (...) ask, what age except this one will oppose our efforts?" (115). Indeed, early modern attempts to prepare and prescribe drugs forged in the alchemical laboratory often faced vehement opposition by the university-trained physicians who were weaned on the humoral theory and herbal materia medica of Galen. The orthodox Galenists disdained not only the "chemical poisons" of the Paracelsians, but also their theoretical speculations. After all, the Paracelsians dismissed the belief that disease was the result of humoral imbalances, and promoted both the analogy of microcosm (the human) and macrocosm (the natural world, including the stars), and the idea that diseases were essences or actual beings.Severinus was prescient in his prediction that chemical medicine would become popular, but—as Jole Shackelford notes in the introduction to his A Philosophical Path for Paracelsian Medicine—the concepts of Paracelsus and his followers continue to remain peripheral to the grand narratives of early modern intellectual history. This remains the case despite the illuminating studies of such scholars as the late-Enlightenment medical historian Kurt Polycarp Sprengel, Walter Pagel, and Allen Debus. Thus, Shackelford sheds much needed light on this significant strand of sixteenth- and seventeenth-century science and medicine. Via text-oriented study, particularly of Severinus's Idea medicinæ philosophicæ (Ideal of Philosophical Medicine), Shackelford provides a long-awaited and meticulous biographical account of Severinus and explains with refreshing clarity the sources and speculative theory behind his brand of chemical medicine. Like such recent scholars as Michael Walton and Charles Gunnoe, Shackelford presents Paracelsianism as an ideology, duly noting that the ideas of Severinus, reflecting the reception of Paracelsus in general, were frequently accepted or rejected on religious grounds.To begin, Shackelford establishes Severinus's importance, noting that the medical author and Wittenberg professor Daniel Sennert wrote in 1619 that most iatrochemists followed in the steps of Severinus, who had molded Paracelsus's ideas into a coherent philosophy. Shackelford then traces the story of how Severinus—after studying at such universities as Padua and Paris—joined his friend Pratensis (a recognized Paracelsian) and Tycho [End Page 488] Brahe in bringing an increasingly eclectic Denmark up to continental cultural and intellectual standards. Unfortunately, Severinus's appointment as physician to the king distracted him from completing most of his research projects, but he had already left for posterity his Idea medicinæ, published in 1571.As Shackelford writes, the Idea medicinæ promoted Severinus's belief that Paracelsian medicine was not only an alternative to humoral medicine, but also promised to cope better with "new" fevers. Also, Severinus invested Paracelsianism with authority by emphasizing its ancient forebears and by arguing that Paracelsus was the latest in the line of prisca theologia—one of the few to "ascend to the inner chambers of the Mosaic mysteries" (57). In his amalgamation of Neoplatonism, the Hippocratic tradition, and Paracelsus, Severinus's featured doctrine was efficient causation, or "semina theory." Unlike Robert Boyle's inertial, material corpuscles and their active principles, Severinus's semina were "intrinsically formal and immaterial, and were logically and ontologically prior to matter" (17). The characteristics of these "loci," which accounted for all change in the subvisible world, could be observed through chemical analysis, and they were uniquely attractive to Christians, who were drawn to Severinus's Paracelsian interpretation of Genesis and his idea that when the predestinations contained in the semina are completed, the world will reach its end.Shackelford engages the reader with such fascinating topics as why Tycho—who was not just an astronomer, but also a student of alchemy—departed Denmark, and how Paracelsians were involved in the effort to improve the Danish Bible by "cleansing" it of non-Lutheran elements. Very welcome too is Shackelford's discussion of the neglected topic of Paracelsian therapeutics, especially his evaluation of... (shrink)

What is the status of a cat in a virtual reality environment? Is it a real object? Or part of a fiction? Virtual realism, as defended by D. J. Chalmers, takes it to be a virtual object that really exists, that has properties and is involved in real events. His preferred specification of virtual realism identifies the cat with a digital object. The project of this paper is to use a comparison between virtual reality environments and scientific computer simulations to (...) critically engage with Chalmers’s position. I first argue that, if it is sound, his virtual realism should also be applied to objects that figure in scientific computer simulations, e.g. to simulated galaxies. This leads to a slippery slope because it implies an unreasonable proliferation of digital objects. A philosophical analysis of scientific computer simulations suggests an alternative picture: The cat and the galaxies are parts of fictional models for which the computer provides model descriptions. This result motivates a deeper analysis of the way in which Chalmers builds up his realism. I argue that he buys realism too cheap. For instance, he does not really specify what virtual objects are supposed to be. As a result, rhetoric aside, his virtual realism isn’t far from a sort of fictionalism. (shrink)

This paper discusses the connection between epistemic virtues and chemistry in the eighteenth century Dutch Republic. It does so in two ways. First, it presents the virtue epistemology of three Dutch university professors and natural philosophers: Herman Boerhaave, Petrus van Musschenbroek, and Johannes David Hahn. It shows how their criticism of a priori philosophy and their defence of experimental natural philosophy is connected to a specific virtue epistemology. Four epistemic virtues are central for these authors: intellectual patience, diligence and (...) humility, and impartiality. This virtue epistemology informs their presentation of chemistry as an exemplary discipline. The practice of chemistry instils these key epistemic virtues in its practitioners. Second, the article shows how these epistemic virtues also play a role in later debates regarding the reception of Lavoisier’s work in the Dutch Republic. This article hopes to provide an example of what Ian Kidd has called a ‘deep conception of epistemic vice [and virtue]’. It also argues for the fruitfulness of applying a virtue epistemic framework to the study of the Chemical Revolution. (shrink)

Memoirs and papers presented at a conference held on the occasion of the 90th birthday of the Mongolian philosopher Ts. Balkhaajav.