Turning Points in Natural Theology from Bacon to Darwin discusses important changes that took place in the argument from design, the staple rhetorical formation of natural theology, during the period from Francis Bacon (1561-1626) to Charles Darwin (1809-82). After a discussion of the circumstances under which Bacon came to be the first to use the term natural theology in English, the book shows that the object of design undergoes a shift. For Bacon, the object of design is the creature. For Robert Boyle and those following his lead, the object of design is the mechanism. For Isaac Newton and those following him, the object of design is the nested system. For William Paley and the writers of the Bridgewater Treatises, the object of design is the system more generally. And for Darwin, the object of design is interactive systems.