For much of the twentieth century, French intellectual life was dominated by theoreticians and historians of mentalité. Traditionally, the study of the mind and of its limits and capabilities was the domain of philosophy, however in the first decades of the twentieth century practitioners of the emergent human and social sciences were increasingly competing with philosophers in this field: ethnologists, sociologists, psychologists and historians of science were all claiming to study 'how people think'. Scholars, including Gaston Bachelard, Georges Canguilhem, Léon Brunschvicg, Lucien Lévy-Bruhl, Lucien Febvre, Abel Rey, Alexandre Koyré and Hélène Metzger were all investigating the mind historically and participating in shared research projects. Yet, as they have since been appropriated by the different disciplines, literature on their findings has so far failed to recognise the connections between their research and their importance in intellectual history. In this exemplary book,
