Review of Love, Order, and Progress: The Science, Philosophy, and Politics of Auguste Comte, edited by Michel Bourdeau et al. HOPOS 9 (2019): 419-423. (PDF)
“Protoplasm Feels”: The Role of Physiology in Peirce’s Evolutionary Metaphysics. HOPOS 8 (2018): 28-61. (PDF)
Review of La gauche évolutionniste. Spencer et ses lecteurs en France et en Italie, by Naomi Beck. Isis 107 (2016): 418-419. (PDF)
The Origins and Development of the Idea of Organism-Environment Interaction. In Entangled Life: Organism and Environment in the Biological and Social Sciences, ed. Gillian Barker, Eric Desjardins, and Trevor Pearce, pp. 13-32. Dordrecht: Springer, 2014. (PDF)
From ‘Circumstances’ to ‘Environment’: Herbert Spencer and the Origins of the Idea of Organism-Environment Interaction. Studies in History and Philosophy of Biological and Biomedical Sciences 41 (2010): 241-252. (PDF)
“A Great Complication of Circumstances” – Darwin and the Economy of Nature.” Journal of the History of Biology 43 (2010): 493-528. (PDF)