1. Addison, Joseph, “On the Pleasures of the Imagination,” Nos. 411–421, in Robert Allen (ed.), Selections from The Tatler and The Spectator (New York, NY: Holt, Rinehart and Winston, 1957).
2. Locke and Botany,”;Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences,2006