The book was Gellner's scathing attack on ordinary language philosophy, Words and Things (1959), which included criticism of Ryle. Bertrand Russell, who had written a preface for the book, wrote to The Times protesting Ryle's decision, which sparked many letters in reply, including from Ryle. They are all collected here. The series culminates with an editorial about the dispute:
Plus ça change, plus c'est la même chose!