title: John Locke, John Ray, and the problem of the natural system.
authors.forename: P R
authors.initials: PR
authors.lastname: Sloan
mesh_terms: D001695:Biology / Q000266:history*; D049692:History, Early Modern 1451-1600; D049711:History, Modern 1601-; D009626:Terminology as Topic; D006113:United Kingdom