Abstract
This essay addresses the interrelations between philosophy and experimental sciences that lie at the heart of Carl Stumpf’s epistemology. Following a biographical exposé demonstrating how Stumpf succeeded in acquiring a dual competence in both philosophical and scientific fields, we examine the vast array of academic disciplines encompassed by his research. Such a biographical treatment aims, indeed, to better promote the thrust of Stumpf’s assertion that philosophical enquiries should always be carried out in close connection with scientific practices, and underlines how philosophico-scientific interactions established his work as a central pillar in the history of late nineteenth- and early twentieth-century German thought.