Ambix

Research into the history of alchemy and Paracelsianism in Italy has highlighted the role of Italian courts in the sixteenth and seventeenth centuries as centres of elaboration and diffusion of alchemical knowledge. Among these, one of the best known is the Medici court which already dedicated spaces in the ducal foundry to the alchemical arts in the time of Cosimo I. This interest would remain alive with Francesco I and his son, Don Antonio de' Medici, one of the greatest supporters of Paracelsian medicine in Italy...

During the eighteenth century, authors of chemical treatises and courses on chemistry often introduced their work with a chapter devoted to the history of chemistry. While there may have been different reasons for the use of history, its importance was never seriously questioned. However, when Antoine Laurent Lavoisier (1743-1794) took a professional interest in chemistry in the early 1770s, he progressively became uneasy with this literary tradition. In this essay, I intend to explore the ways in which Lavoisier looked at the history of chemistry and to show how, from the 1780s onwards, he began to adopt a hostile attitude towards historical erudition...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

Ancient Greek colour terminology captures brightness, light, and brilliance rather than clear-cut portions of the chromatic spectrum, as scholars agree today. This also applies to the rich semantic of yellow, which we investigate starting from a philosophical and theoretical perspective. We then shift our focus to Graeco-Roman technical writings dealing with alchemical dyes, cosmetics, and other crafts that made use of the same set of ingredients and colouring substances. We compile a complete list of yellow-dyeing plants used in antiquity, which will update and enlarge the lists currently available in secondary literature on the topic, such as the seminal catalogue by Robert J...

Nitric acid became commonly available in the seventeenth century. Since then, it held the interest of chemists, especially those interested in the art of dyeing. Due to what is now called the xanthoproteic reaction (from Greek xanthós , describing shades of yellow), nitric acid produces a stable yellow colouration in proteinaceous materials, such as wool, silk, and bones. The chemistry of this reaction is well understood today. Less well-known is that it held the interest of dyers in the past. Dyers considered the ability of nitric acid to give a yellow colour to certain substances a solution to giving materials a durable, that is, a lasting, yellow colour...

Mediaeval Arabic technical literature shows a keen interest in yellow dyes, paints, varnishes, inks, and even perfumes. Recipes reveal that yellow was viewed as just one step away from gold, with preparations for these two colours often sharing ingredients and techniques. In the unfolding of procedures and applications to different materials, from skin to textiles, Arabic sources also offer a glimpse into daily life and shared tastes, presenting luxury objects along with their imitations. This paper traces the role played by yellow and gold in inks, cosmetic dyes, and coloured, scented fabrics, exploring the textual dimension of these recipes, their technical features, and their social role between the court and the street...

Many of the "signs and tokens" described in alchemical texts relate to colour, from the Crow's Bill signifying putrefaction to the philosophical solvents disguised as Green Lions, Red Dragons, and Grey Wolves. While the process of yellowing, or citrination, often appears in medieval recipes, it seems to have interested commentators less than the more familiar processes of blackening, whitening, or reddening. Yet beyond these canonical colours, yellowness turns out to be ubiquitous in alchemy and its associated craft practices, both in Latin texts and vernacular translations...

No abstract text is available yet for this article.

No abstract text is available yet for this article.

No abstract text is available yet for this article.

The New Chemistry, as practised by its early proponents in late eighteenth-century France, is often associated with quantification and a move away from sensorial perceptions. In this paper, I argue that the sensory, far from being discarded by the practitioners of the New Chemistry, thrived in one of their major productions: the Annales de Chimie. Viewing the New Chemistry through its relation to the sensory highlights the diversity of chemical applications and offers a new way of examining the connection of chemistry to state and industrial actors...

The materials and practices of chymical procedures have become key sources of information among science historians, opening up channels for cross-disciplinary dialogue. This is especially true with regard to material culture-based disciplines such as archaeology whose bottom-up approach offers significant contributions to the new historiography of science. Parallel to this trend, some archaeological scientists who specialise in reconstructing past technologies have begun to address questions concerning the production and circulation of scientific knowledge, and have focused as well on the contributions of artists/artisans to the development of natural philosophical theories...

This article investigates the prolific colonial New England alchemist and physician Gershom Bulkeley (1635/36-1713) and his late seventeenth-century household laboratory. First, I provide an updated bibliography and biography of Bulkeley and then engage an assemblage of surviving commonplace and account books, inventories, a vade mecum , and several books discovered to have been previously owned by Bulkeley. In order to understand Bulkeley's laboratory, I coin the term "saltbox science," arguing that his work combined European textual knowledge and temporal and material adaptations within the colonial household and town...

This paper publishes the sixty-nine surviving very personal letters that Reichsgraf von Rumford wrote to Viscountess Palmerston after they met in Milan in 1793. The letters draw attention to the private domestic spaces of science and the critical importance of the aristocracy in scientific developments, topics that have both received some discussion recently. They were, however, not written with the purpose of providing historical evidence, but as part of a decade-long friendship which the letters trace, revealing, among other things, Rumford's other amours...

This article presents the decryption, historical analysis, and alchemical interpretation of an alchemical cipher found in a shared notebook of John and Arthur Dee (British Library MS Sloane 1902). The cipher is an early example of a Bellaso/Della Porta/Vigenère type, a strong encryption method which was historically deemed indecipherable. The essay explores the medical and alchemical context for the manuscript into which the cipher was copied and provides the transcription, plaintext solution (in Latin), and English translation of the encrypted text...

This article explores George Davis's editing of the Chemical Trades Journal ( CTJ ) between 1887 and 1906, a period during which he was also working as a consultant chemist and consultant chemical engineer. Davis had worked from 1870 in various sectors of the chemical industry before becoming a sub-inspector in the Alkali Inspectorate between 1878 and 1884. It was during this period that the British chemical industry was facing severe economic pressure and to remain competitive was having to adapt to less wasteful and more efficient production...

The categories of "amateur" and "professional" remain central in studies on the sociology of nineteenth-century science. This article joins a growing body of literature that points out the complicated and intersecting connections between these two groups and how blurred the boundaries could be. This study focuses on pyrotechny, the art of fireworks, a field of far more obvious importance in the nineteenth century than it is today. Firework displays were mounted by artisan firework makers, who by the end of the century had become industrialists, and by military specialists, usually artillerymen...

No abstract text is available yet for this article.

No abstract text is available yet for this article.