The focus of this paper is a fascinating but hitherto unstudied 1742 manuscript treatise by Johannes Daniel Schlichting (1705–1765) titled “Sapientiæ Problema” that contains something extremely rare in the mid-eighteenth century: a full-blown speculative cosmogony. As this article reveals, Schlichting developed a distinctive vital liquid matter in an effort to account for the generation of all natural bodies and combat the stamina-based theories that were dominant in his day. He hoped that his treatise would be published in the Philosophical Transactions (...) of the Royal Society, but an accompanying abridgment by the FRS Henry Baker (1698–1774) strongly implies that Schlichting’s speculative bent and desire to divulge causal explanations were unacceptable to the Englishman and generally ill-suited to the intellectual climate of mid-century England. (shrink)

This article provides, for the first time, an overview of all images (drawings and prints) sent by the Dutch microscopist Antoni van Leeuwenhoek (1632–1723) to the Royal Society during their fifty-year long correspondence. Analyses of the images and close reading of the letters have led to an identification of three periods in which Leeuwenhoek worked together with artists. The first period (1673–1689) is characterized by the work of several draughtsmen as well as Leeuwenhoek’s own improving attempts to depict his observations. (...) In the second period (1692–1712) Leeuwenhoek worked together with one unknown draughtsman, while the work in the third period (1713–1723) can now be attributed to the young draughtsman Willem vander Wilt. This article also shows how Leeuwenhoek did not only rely on draughtsmen for the depiction of his own observations, but rather, how he worked together with them in his workshop to observe, confirm, and witness microscopic experiments, replicating the collaborative working methods of the Royal Society in Delft. (shrink)

Richard Waller, Fellow and Secretary of the Royal Society, is probably best remembered for editing Robert Hooke’s posthumously published works. Yet, Waller also created numerous drawings, paintings, and engravings for his own work and the Society’s publications. From precisely observed grasses to allegorical frontispieces, Waller’s images not only contained a diverse range of content, they are some of the most beautiful, colorful, and striking from the Society’s early years. This article argues that Waller played a distinctly important role in shaping (...) the visual program of the Royal Society by virtue of his multiple functions as reliable administrator and translator, competent natural philosopher, and skilled image-maker. It analyzes Waller’s visual works in the context of his graphic training—in part influenced by his mother Mary More—and situates them within the context of English image-making traditions and Waller’s own natural philosophical interests. Examined as a functional whole, Waller’s career as a Fellow of the Royal Society emerges as an important case study in the fusion of visual and scientific practices in early-modern England. (shrink)

ABSTRACT In an unpublished anatomical treatise written around 1670, the English anatomist and fellow of the Royal Society of London Edmund King proposed that the human body was ultimately an assemblage of tubes and contained liquids. Without literally seeing every of its constituents to be tubular, how did King come to posit a tubular body? This article tackles the question by examining King’s inquiry about the pulse against his framing of the circulatory system into a universally tubular model. Asking how (...) King registered this model despite the limited visibility of vascularity in practice, I discuss the place of analogy in his anatomical observation. I argue that analogy constituted an essential strategy for extending what King had perceived to account for the hardly perceptible nuances of the human body. I concentrate on two of his analogies, in which the artery was compared to the cord and the ureter. These two analogies revealed remarkable epistemic potency in representing and reasoning the pulse as the inherent motion of the living artery. They suggest that in seventeenth-century observation accounts, analogy was not simply a rhetoric suspicious of violating the principle of scientific empiricism; rather, they opened up ways of seeing and imagining nature. (shrink)

Inspired by studies about the history and anthropology of knowledge, this text addresses the question of how places are constitutive of the process of argumentation. The argument from place that is presented in classical rhetoric handbooks, particularly in Quintilian, is used as a model of analysis in order to emphasise the situated character of argumentative processes. Both the attention to the place from which an argument is uttered and to the place to which the argument refers are useful guides that (...) help us understand the phenomenon of relevance and keep expanding the contextual and situated approach to argumentation theory and rhetoric. (shrink)