History of science credits the Flemish physician, alchemist and philosopher Jan Baptist Van Helmont (1579-1644) for his contributions to the development of chemistry and medicine. Yet, as this book makes clear, focussing on Van Helmont's impact on modern science does not do justice to the complexity of his thought or to his influence on successive generations of intellectuals like Robert Boyle or Gottfried Leibniz. Revealing Van Helmont as an original thinker who sought to produce a post-Scholastic synthesis of religion and natural philosophy, Georgiana Hedesan reconstructs his ambitious quest for universal knowledge as it emerges from the text of the Ortus medicinae (1648). Published after Van Helmont's death by his son, the work can best be understood as a compilation of finished and unfinished treatises, the historical product of a life unsettled by religious persecution and personal misfortune. The present book provides a coherent account of Van Helmont's philosophy by analysing its main tenets. Divided into two parts, the study opens with a background to Van Helmont's concept of an alchemical Christian philosophy, demonstrating that his outlook was deeply grounded in the tradition of medical alchemy as reformed by Theophrastus von Hohenheim, called Paracelsus (1493-1541). It then reconstitutes Van Helmont's biography, while giving a historical dimension to his intellectual output. The second part reconstructs Van Helmont's Christian philosophy, investigating his views on God, nature and man, as well as his applied philosophy. Hedesan also provides an account of the development of Van Helmont's thought throughout his life. The conclusion sums up Van Helmont's intellectual achievement and highlights avenues of future research.

History of science credits the Flemish physician, alchemist and philosopher Jan Baptist Van Helmont (1579-1644) for his contributions to the development of chemistry and medicine. Yet, as this book makes clear, focussing on Van Helmont's impact on modern science does not do justice to the complexity of his thought or to his influence on successive generations of intellectuals like Robert Boyle or Gottfried Leibniz. Revealing Van Helmont as an original thinker who sought to produce a post-Scholastic synthesis of religion and natural philosophy, Georgiana Hedesan reconstructs his ambitious quest for universal knowledge as it emerges from the text of the Ortus medicinae (1648). Published after Van Helmont's death by his son, the work can best be understood as a compilation of finished and unfinished treatises, the historical product of a life unsettled by religious persecution and personal misfortune. The present book provides a coherent account of Van Helmont's philosophy by analysing its main tenets. Divided into two parts, the study opens with a background to Van Helmont's concept of an alchemical Christian philosophy, demonstrating that his outlook was deeply grounded in the tradition of medical alchemy as reformed by Theophrastus von Hohenheim, called Paracelsus (1493-1541). It then reconstitutes Van Helmont's biography, while giving a historical dimension to his intellectual output. The second part reconstructs Van Helmont's Christian philosophy, investigating his views on God, nature and man, as well as his applied philosophy. Hedesan also provides an account of the development of Van Helmont's thought throughout his life. The conclusion sums up Van Helmont's intellectual achievement and highlights avenues of future research.

A book that finally demystifies Newton’s experiments in alchemy When Isaac Newton’s alchemical papers surfaced at a Sotheby’s auction in 1936, the quantity and seeming incoherence of the manuscripts were shocking. No longer the exemplar of Enlightenment rationality, the legendary physicist suddenly became “the last of the magicians.” Newton the Alchemist unlocks the secrets of Newton’s alchemical quest, providing a radically new understanding of the uncommon genius who probed nature at its deepest levels in pursuit of empirical knowledge. In this evocative and superbly written book, William Newman blends in-depth analysis of newly available texts with laboratory replications of Newton’s actual experiments in alchemy. He does not justify Newton’s alchemical research as part of a religious search for God in the physical world, nor does he argue that Newton studied alchemy to learn about gravitational attraction. Newman traces the evolution of Newton’s alchemical ideas and practices over a span of more than three decades, showing how they proved fruitful in diverse scientific fields. A precise experimenter in the realm of “chymistry,” Newton put the riddles of alchemy to the test in his lab. He also used ideas drawn from the alchemical texts to great effect in his optical experimentation. In his hands, alchemy was a tool for attaining the material benefits associated with the philosopher’s stone and an instrument for acquiring scientific knowledge of the most sophisticated kind. Newton the Alchemist provides rare insights into a man who was neither Enlightenment rationalist nor irrational magus, but rather an alchemist who sought through experiment and empiricism to alter nature at its very heart.

A 400-year history of the development of alchemy in England that brings to light the evolution of the practice. In medieval and early modern Europe, the practice of alchemy promised extraordinary physical transformations. Who would not be amazed to see base metals turned into silver and gold, hard iron into soft water, and deadly poison into elixirs that could heal the human body? To defend such claims, alchemists turned to the past, scouring ancient books for evidence of a lost alchemical heritage and seeking to translate their secret language and obscure imagery into replicable, practical effects. Tracing the development of alchemy in England over four hundred years, from the beginning of the fourteenth century to the end of the seventeenth, Jennifer M. Rampling illuminates the role of alchemical reading and experimental practice in the broader context of national and scientific history. Using new manuscript sources, she shows how practitioners like George Ripley, John Dee, and Edward Kelley, as well as many previously unknown alchemists, devised new practical approaches to alchemy while seeking the support of English monarchs. By reconstructing their alchemical ideas, practices, and disputes, Rampling reveals how English alchemy was continually reinvented over the space of four centuries, resulting in changes to the science itself. In so doing, The Experimental Fire bridges the intellectual history of chemistry and the wider worlds of early modern patronage, medicine, and science.

Toxicology in the Middle Ages and Renaissance provides an authoritative and fascinating exploration into the use of toxins and poisons in the Middle Ages and Renaissance. Part of the History of Toxicology and Environmental Health series, this volume is a follow-up, chronologically, to the first two volumes which explored toxicology in antiquity. The book approximately covers the 1100s through the 1600s, delving into different aspects of toxicology, such as the contributions of scientific scholars of the time, sensational poisoners and poisoning cases, as well as myths. Historical figures, such as the Borgias and Catherine de Medici are discussed. Toxicologists, students, medical researchers, and those interested in the history of science will find insightful and relevant material in this volume. - Provides the historical background for understanding modern toxicology - Illustrates the ways previous civilizations learned to distinguish safe from hazardous substances, how to avoid them, and how to use them against enemies - Explores the way famous historical figures used toxins

This collection of essays examines the question of theory from the perspective of the history of chemistry. Through the lens of a number of different periods, the authors provide a historical analysis of the question of theory in the history of chemical practice. The consensus picture that emerges is that the history of science tells us a much more complex story about theory choice. A glimpse at scientific practice at the time shows that different, competing as well as non-competing, theories were used in the context of the scientific practice at the various times and sometimes played a pivotal pedagogical role in training the next generation of chemists. This brief brings together a history of chemical practice, and in so doing reveals that theory choice is conceptually more problematic than was originally conceived. This volume was produced as part of the Ad HOC chemistry research group hosted by University College London and University of Cambridge.

Thomas Vaughan’s challenging books on alchemy, magic, and other esoterica make better sense in the context of the Rosicrucian ideas he introduced to English readers in the seventeenth century. This is the first scholarly book on his life, sources, writings, and subsequent influence.