Building upon work by Mary Hesse (1974), this paper aims to show that a single method of investigation lies behind Maxwell’s use of physical analogies in his major scientific works before the Treatise on Electricity and Magnetism. Key to understanding the operation of this method is to recognize that Maxwell’s physical analogies are intended to possess an ‘inductive’ function in addition to an ‘illustrative’ one. That is to say, they not only serve to clarify the equations proposed for an unfamiliar (...) domain with a working interpretation drawn from a more familiar science, but can also be sources of defeasible yet relatively strong arguments from features of the more familiar domain to features of the less. Compared with the reconstructions by Achinstein (1991), Siegel (1991), Harman (1998) and others, which postulate a discontinuity in Maxwell’s approach to physical analogy, the account defended in this paper i) makes sense of the continuity in Maxwell’s remarks on scientific methodology, ii) explains his quest for a “mathematical classification of physical quantities” and iii) offers a new and more plausible interpretation of the debated episode of the introduction of the displacement current in Maxwell’s “On Physical Lines of Forces”. (shrink)

Relativity is one of the most overfished streams in the history of science. Albert Einstein has doubtless graced the covers of more monographs than any other scientist—possibly save Charles Darwin—in the decade since the 2005 centenary of his annus mirabilis. I was skeptical that Jimena Canales would be able land new catch from such thoroughly exploited waters. The Physicist and the Philosopher proved that skepticism misplaced. By exploring a decades-long feud that pitted Albert Einstein against the French savant Henri Bergson, (...) Canales shows how relativity intertwined with an intellectual context that has been roundly ignored by historians and philosophers of science and presents one of history’s most iconic scientists in new light. (shrink)