In the entry above, we follow the convention given in the Nortons’ Treatise and Beauchamp’s Enquiries: we cite Book. Part. Section. Paragraph; followed by references to the Selby-Bigge/Nidditch editions. Thus T 1.2.3.4/34: will indicate Treatise Bk.1, Pt.2, Sec.3, Para.4/ Selby-Bigge pg.34. References to Abstract [TA] are to the two editions of the Treatise mentioned above (paragraph/page). In the case of the Enquiries we cite Section and Paragraph; followed by page reference to the Selby-Bigge edition. Thus EU 12.1/149 refers to Enquiry Concerning Human Understanding, Sect.12, Para. 1 / Selby-Bigge pg. 149.