This is the penultimate pre-publication version of John A. Schuster, ‘Did Descartes Teach a ‘Philosophy of Science’ or Implement ‘Strategies of Natural Philosophical Explanation’?’ in Stephen Gaukroger and Catherine Wilson (Eds.) Descartes and Cartesianism: Essays in Honour of Desmond Clarke, OUP, 2017, pp.3-25. Page numbers in brackets indicate page numbers in the published version. This paper raises issues and challenges, which I leave to the reader, concerning the ways in which an historian might write the history of early modern natural philosophizing, compared to the manner in which a philosopher might do so. See also in the ‘Book Reviews’ Section my essay review of Clarke’s biography of Descartes.