John Locke's "new method of making common-place-books": tradition, innovation and epistemic effects

In 1676, the English physician and philosopher John Locke published a new method of commonplacing. He had developed this method and, in particular, a new approach to organizing and indexing the entries, in the course of 25 years of personal note-taking and it proved quite influential. This paper presents the three major approaches to commonplacing as practiced by physicians and other scholars before Locke--the systematic or textbook approach, the alphabetical approach and the sequential or index-based approach--and it analyzes the ways in which Locke himself applied them in his own commonplace books. In comparison with established approaches, his new method offered a maximum degree of flexibilitywhile facilitating the later retrieval of notes and minimising waste of space and paper. Thanks to these features, it was particularly well suited for physicians and natural philosophers who were interested in the infinite variety of natural particulars rather than in elegant quotes on a very limited set of classical topics. In conclusion, the potential epistemic impact of commonplacing on early modern medicine and natural philosophy is discussed, in particular its importance for contemporary debates about species and disease entities and for the emergence of the notion of "facts"!