Summary Robert Boyle is remembered largely for his integration of experiment and the ?mechanical philosophy?. Although Boyle is occasionally elusive as to what he means precisely by the ?mechanical philosophy?, it is clear that a major portion of it concerned his corpuscular theory of matter. Historians of science have traditionally viewed Boyle's corpuscular philosophy as the grafting of a physical theory onto a previously incoherent body of alchemy and iatrochemistry. As this essay shows, however, Boyle owed a heavy debt to (...) a longstanding alchemical theory that postulated the corpuscular make-up of metals and various reagents. I have elsewhere argued in a general way for Boyle's debt to alchemical corpuscular theory, but in the present essay I show one of his precise sources?namely the Wittenberg medical professor Daniel Sennert (1572?1637). In his youth Boyle wrote a treatise on corpuscularianism, Of the Atomicall Philosophy, that borrowed heavily from Sennert without acknowledgement. Later works, such as The Sceptical Chymist, elaborate on these borrowings. This discovery shows that we cannot view Boyle's corpuscular philosophy as an imposition of physics on chemistry: instead, it appears that it originally grew out of chemistry itself. The discovery also throws an interesting light on Boyle's attitude toward sources. (shrink)

Alan Chalmers uses Robert Boyle’s mechanical philosophy as an example of the irrelevance of ‘philosophy’ to ‘science’ and criticizes my 2006 book Atoms and alchemy for overemphasizing Boyle’s successes. The present paper responds as follows: first, it argues that Chalmers employs an overly simplistic methodology insensitive to the distinction between historical and philosophical claims; second, it shows that the central theses of Atoms and alchemy are untouched by Chalmers’s criticisms; and third, it uses Boyle’s analysis of subordinate causes and his (...) debate with Henry More in the 1670s to demonstrate the inadequacy of Chalmers’s construal of the mechanical philosophy.Keywords: Robert Boyle; Alan Chalmers; Geber; Paul of Taranto; Daniel Sennert; Alchemy; Chymistry; Mechanical philosophy; Reduction to the pristine state. (shrink)

The second and final volume of the most authoritative English-language edition of Spinoza's writings The Collected Works of Spinoza provides, for the first time in English, a truly satisfactory edition of all of Spinoza's writings, with accurate and readable translations, based on the best critical editions of the original-language texts, done by a scholar who has published extensively on the philosopher's work. The centerpiece of this second volume is Spinoza’s Theological-Political Treatise, a landmark work in the history of biblical scholarship, (...) the first argument for democracy by a major philosopher, and a forceful defense of freedom of thought and expression. This work is accompanied by Spinoza’s later correspondence, much of which responds to criticism of the Theological-Political Treatise. The volume also includes his last work, the unfinished Political Treatise, which builds on the foundations of the Theological-Political Treatise to offer plans for the organization of nontyrannical monarchies and aristocracies. The elaborate editorial apparatus—including prefaces, notes, glossary, and indexes—assists the reader in understanding one of the world’s most fascinating, but also most difficult, philosophers. Of particular interest is the glossary-index, which provides extensive commentary on Spinoza’s technical vocabulary. A milestone of scholarship more than forty-five years in the making, The Collected Works of Spinoza is an essential edition for anyone with a serious interest in Spinoza or the history of philosophy. (shrink)

Robert Boyle thought that his scientific achievements in pneumatics and chemistry depended on, and thus provided support for, his mechanical philosophy. In a recent article in this journal, Alan Chalmers has challenged this view. This paper consists of a reply to Chalmers on two fronts. First it tries to specify precisely what ‘the mechanical philosophy’ meant for Boyle. Then it goes on to defend, against Chalmers, the view that Boyle's science does support his natural philosophy.Keywords: Robert Boyle; Mechanical philosophy; Reductionism.

This paper argues that, contrary to the claims of Alan Chalmers, Boyle understood his experimental work to be intimately related to his mechanical philosophy. Its central claim is that the mechanical philosophy has a heuristic structure that motivates and gives direction to Boyle's experimental programme. Boyle was able to delimit the scope of possible explanations of any phenomenon by positing both that all qualities are ultimately reducible to a select group of mechanical qualities and that all explanations of natural phenomena (...) are to be in terms of the operations of machines and are to appeal only to qualities that are already familiar. This is illustrated by his investigations into the Torricellian experiment. Boyle's explanation of the elevation of the mercurial cylinder by appeal to the spring of the air was an intermediate mechanical explanation. Boyle was convinced that the spring of the air was ultimately reducible to the mechanical qualities. This in turn had implications for his research into the cause of respiration. In a move that was both parsimonious and consistent with the broad requirements of the mechanical philosophy, Boyle was able to solve the problem of the cause of the inflow of air into the lungs by appeal to his research in pneumatics. This application of a mechanical explanation in pneumatics to physiology is just what one would expect if the mechanical philosophy was as universal as Boyle claimed it to be. Therefore, far from Boyle's experiments having a life of their own, they were clearly directed by and understood in terms of the mechanical philosophy.Keywords: Air-pump; Boyle; Chalmers; Experiment; Explanation; Mechanism. (shrink)

Baruch Spinoza (1632-1677) was one of the most important philosophers of all time; he was also one of the most radical and controversial. The story of Spinoza's life takes the reader into the heart of Jewish Amsterdam in the seventeenth century and, with Spinoza's exile from Judaism, into the midst of the tumultuous political, social, intellectual, and religious world of the young Dutch Republic. This new edition of Steven Nadler's biography, winner of the Koret Jewish Book Award for biography and (...) translated into a dozen languages, is enhanced by exciting new archival discoveries about his family background, his youth, and the various philosophical, political, and religious contexts of his life and works. There is more detail about his family's business and communal activities, about his relationships with friends and correspondents, and about the development of his writings, which were so scandalous to his contemporaries. (shrink)

Michael Hunter has done more than any single person since Thomas Birch to make the study of Robert Boyle convenient and enjoyable, and here, ably assisted by Edward B. Davis, he has put us all further in his debt with a compact and readable edition of the philosophically important Free Enquiry into the Notion of Nature.

Summary Robert Boyle did not subordinate chemistry to mechanical philosophy. He was in fact reluctant to explain chemical phenomena by having recourse to the mechanical properties of particles. For him chemistry provided a primary way of penetrating into nature. In his chemical works he employed corpuscles endowed with chemical properties as his explanans. Boyle's chemistry was corpuscular, rather than mechanical. As Boyle's views of seminal principles show, his corpuscular philosophy cannot be described as a purely mechanical theory of matter. Boyle's (...) classification of corpuscles allowed him to connect his corpuscular views of matter with chemistry. Boyle did not rule out the possibility of a classification of chemical substances based on their properties: his aim was to reform the received classification. (shrink)