 Cook Wilson’s other notable contribution is the provision, in ‘On the Geometrical Problem in Plato’s Meno, 86e sqq.’ (GPP), of a key addition to S. H. Butcher’s clarification (1888) of the notoriously obscure geometrical illustration of Meno 86e–87b, showing that Plato did not intend to offer an actual solution to the problem of the inscription of an area as a triangle within a circle, but simply to determine, while alluding to the method of analysis, the possibility of its solution. An analogous explanation of that passage was provided later on by T. L. Heath (1921, 298–303) and A. S. L. Farquharson (1923), while Knorr (1986, 71–74) and Menn (2002, 209–214) defended this interpretation without mention of Cook Wilson. (See also the critical discussion of the ‘Cook Wilson/Heath/Knorr interpretation’ in (Lloyd 1992), as well as (Scott 2006, 133–137) and (Wolfsdorf 2008, 164–169).)