The ArgumentDavid Bloor often wrote that Karl Mannheim had “stopped short” in his sociology of knowledge, lacking the nerve to consider the natural sciences sociologically. While this assessment runs counter to Mannheim's own work, which responded in quite specific ways both to an encroaching “modernity” and a looming fascism, Bloor's depiction becomes clearer when considered in the light of his principal introduction to Mannheim's work — a series of essays by Robert Merton. Bloor's reading and appropriation of Mannheim emerged from (...) his background in experimental psychology and his attempts to supercede Merton's own structural-functionalist program for the sociology of knowledge. By retracing this extended trail of readings and re-readings, we may begin to understand the roots of Bloor's curious interpretation of Mannheim's sociology of knowledge, and inquire in a reflexive way about the present and future directions of science studies. (shrink)

In this chapter I investigate the prospects of integrated history and philosophy of science, by examining how philosophical issues raised by “hidden entities”, entities that are not accessible to unmediated observation, can enrich the historical investigation of their careers. Conversely, I suggest that the history of those entities has important lessons to teach to the philosophy of science. Hidden entities have played a crucial role in the development of the natural sciences. Despite their centrality to past scientific practice, however, several (...) of them (e.g., phlogiston, caloric, and the ether) turned out to be fictitious. For this reason, they have figured prominently in recent debates on scientific realism. The issues I explore in this paper are entangled with those debates. I argue that our understanding of hidden entities and their role in experimental practice can be enhanced by adopting an integrated historical-cum-philosophical approach. On the one hand, philosophical reflection on the reality of those entities has a lot to gain by examining historically how they were ntroduced and investigated. On the other hand, the historical reconstruction of the careers of those entities may profit from philosophical reflection on their existence. (shrink)