In the eighteenth century, chemistry was transformed from an art to a public science. Chemical affinity played an important role in this process as a metaphor, a theory domain, and a subject of investigation. Goethe's Elective Affinities, which was based on the current understanding of chemical affinities, attests to chemistry's presence in the public imagination. In Affinity, That Elusive Dream, Mi Gyung Kim restores chemical affinity to its proper place in historiography and in Enlightenment public culture. The Chemical Revolution is usually associated with Antoine-Laurent Lavoisier, who introduced a modern nomenclature and a definitive text. Kim argues that chemical affinity was erased from historical memory by Lavoisier's omission of it from his textbook. She examines the work of many less famous French chemists (including physicians, apothecaries, metallurgists, philosophical chemists, and industrial chemists) to explore the institutional context of chemical instruction and research, the social stratification that shaped theoretical discourse, and the crucial shifts in analytic methods. Apothecaries and metallurgists, she shows, shaped the main theory domains through their innovative approach to analysis. Academicians and philosophical chemists brought about two transformative theoretical moments through their efforts to create a rational discourse of chemistry in tune with the reigning natural philosophy. The topics discussed include the corpuscular (Cartesian) model in French chemistry in the early 1700s, the stabilization of the theory domains of composition and affinity, the reconstruction of French theoretical discourse in the middle of the eighteenth century, the Newtonian languages that plagued the domain of affinity just before the Chemical Revolution, Guyton de Morveau's program of affinity chemistry, Lavoisier's reconstruction of the theory domains of chemistry, and Berthollet's path as an affinity chemist.

Volume two begins with Goethe's theories of affinities, i.e. the chemical reaction view of human life in 1809. This is followed by the history of how the thermodynamic (1876) and quantum (1905) revolutions modernized chemistry such that affinity (the 'force' of reaction) is now viewed as a function of thermodynamic 'free energy' (reaction spontaneity) and quantum 'valency' (bond stabilities). The composition, energetic state, dynamics, and evolution of the human chemical bond A?B is the centerpiece of this process. The human bond is what gives (yields) and takes (absorbs) energy in life. The coupling of this bond energy, driven by periodic inputs of solar photons, thus triggering activation energies and entropies, connected to the dynamical work of life, is what quantifies the human reaction process. This is followed by topics including mental crystallization, template theory, LGBT chemistry, chemical potential, Le Chatelier's principle, Muller dispersion forces, and human thermodynamics.

Self-styled adventurer, literary wit, philosopher, and statesman of science, Pierre-Louis Moreau de Maupertuis (1698-1759) stood at the center of Enlightenment science and culture. Offering an elegant and accessible portrait of this remarkable man, Mary Terrall uses the story of Maupertuis's life, self-fashioning, and scientific works to explore what it meant to do science and to be a man of science in eighteenth-century Europe. Beginning his scientific career as a mathematician in Paris, Maupertuis entered the public eye with a much-discussed expedition to Lapland, which confirmed Newton's calculation that the earth was flattened at the poles. He also made significant, and often intentionally controversial, contributions to physics, life science, navigation, astronomy, and metaphysics. Called to Berlin by Frederick the Great, Maupertuis moved to Prussia to preside over the Academy of Sciences there. Equally at home in salons, cafés, scientific academies, and royal courts, Maupertuis used his social connections and his printed works to enhance a carefully constructed reputation as both a man of letters and a man of science. His social and institutional affiliations, in turn, affected how Maupertuis formulated his ideas, how he presented them to his contemporaries, and the reactions they provoked. Terrall not only illuminates the life and work of a colorful and important Enlightenment figure, but also uses his story to delve into many wider issues, including the development of scientific institutions, the impact of print culture on science, and the interactions of science and government. Smart and highly readable, Maupertuis will appeal to anyone interested in eighteenth-century science and culture. “Terrall’s work is scholarship in the best sense. Her explanations of arcane 18th-century French physics, mathematics, astronomy, and biology are among the most lucid available in any language.”—Virginia Dawson, American Historical Review Winner of the 2003 Pfizer Award from the History of Science Society

Bridging Traditions explores the connections between apparently different zones of comprehension and experience—magic and experiment, alchemy and mechanics, practical mathematics and geometrical mysticism, things earthy and heavenly, and especially science and medicine—by focusing on points of intersection among alchemy, chemistry, and Paracelsian medical philosophy. In exploring the varieties of natural knowledge in the early modern era, the authors pay tribute to the work of Allen Debus, whose own endeavors cleared the way for scholars to examine subjects that were once snubbed as suitable only to the refuse heap of the history of science.

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.

Exploring the morally entangled territory of language and race in 18th- and 19th-century America, Sean Harvey shows that whites’ theories of an “Indian mind” inexorably shaped by Indian languages played a crucial role in the subjugation of Native peoples and informed the U.S. government’s efforts to extinguish Native languages for years to come.