Under the influence of naturalistic approaches, contemporary philosophy of science tends to characterize scientific objectivity not by virtue of the individualistic following of rules or satisfying epistemic utilities, but as a property arising from the organisational features of groups. This paper presents a critical review of one such proposal, that of Helen Longino, probing some of its main features against the debate between Pasteur and Pouchet in mid-nineteenth-century France regarding the spontaneous generation of life. After considering some weaknesses and strengths, (...) it is argued that Longino’s social epistemology is only able to generate normativity by implicitly assuming a classic procedural notion of epistemic acceptability. The paper also aims to use this historical case to shed light on the complex, multidimensional nature of the dynamics of actual science, arguing both against purely epistemic and exclusively social approaches in a satisfactory meta-scientific explanation of controversies. (shrink)

Reflecting on his scientific career toward the end of his life, the French-educated medical researcher René Dubos presented his flowering as an ecological thinker as a story of linear progression—the inevitable product of the intellectual seeds planted in his youth. But how much store should we set by Dubos’s account of his ecological journey? Resisting retrospective biographical readings, this paper seeks to relate the development of Dubos’s ecological ideas to his experimental practices and his career as a laboratory researcher. In (...) particular, I focus on Dubos’s studies of tuberculosis at the Rockefeller Institute in the period 1944–1956—studies which began with an inquiry into the tubercle bacillus and the physiochemical determinants of virulence, but which soon encompassed a wider investigation of the influence of environmental forces and host–parasite interactions on susceptibility and resistance to infection in animal models. At the same time, through a close reading of Dubos’s scientific papers and correspondence, I show how he both drew on and distinguished his ecological ideas from those of other medical researchers such as Theobald Smith, Frank Macfarlane Burnet, and Frank Fenner. However, whereas Burnet and Fenner tended to view ecological interactions at the level of populations, Dubos focused on the interface of hosts and parasites in the physiological environments of individuals. The result was that although Dubos never fully engaged with the science of ecology, he was able to incorporate ecological ideas into his thought and practices, and relate them to his holistic views on health and the natural harmony of man and his environment. (shrink)