Introduction : Aims and method in the Investigations / Eugen Fischer and Erich Ammereller -- Turning the examination around : the recantation of a metaphysician / Peter Hacker -- The builders' language : the opening sections / Joachim Schulte -- Diagnosis and therapy : christening simple objects : PI 38-64 / Eike von Savigny -- Philosophy's hidden essence : PI 89-133 / Stephen Mulhall -- A cognitive self-therapy : PI 138-97 / Eugen Fischer -- Puzzles about rule-following : PI 185-242 / Erich Ammereller -- The demand for synoptic representations and the private language discussion : PI 243-315 / Severin Schroeder -- 'Philosophy states only what everyone admits' / Anthony Kenny -- The use of 'theory' in philosophy / Oswald Hanfling -- Criss-cross philosophy / Cora Diamond -- All kinds of nonsense / Hans-Johann Glock -- A picture held me captive / Stuart G. Shanker.