 Cook Wilson published over 50 papers in Ancient philosophy, in scholarly journals such as Classical Review, Classical Quarterly, Transactions of the Oxford Philological Society and Philologische Rundschau, and a few book-length studies on Aristotle’s Nicomachean Ethics (AS) and on Plato’s Timaeus. His main philological claim concerning the structure of the seventh book of Nicomachean Ethics was that it contained traces of three versions probably written by some Peripatetic later than Eudemus. To this he added a year later a discussion (ASV) of interpolations in Categories, Posterior Analytics and Eudemian Ethics. In a postscript to the revised version of AS (1912), he claimed, however, that the variants were probably different drafts written by Aristotle himself. His pamphlet on the Timaeus (IPT) was mainly polemical, painstakingly detailing R. D. Archer-Hind’s ‘obligations’ in his 1888 edition of the Timaeus to earlier authors, J. G. Stallbaum more than any other.