Abstract
In his book Wittgenstein’s Metaphysics, John Cook argues that from 1912 until his death Wittgenstein was a proponent of neutral monism. This involves, according to Cook, Wittgenstein’s espousal of phenomenalism---the view that there can be nothing beyond immediate experience---and the consequent elimination of matter, causality, and other minds. I argue that this conflicts with almost everything that Wittgenstein wrote after 1932, including the passages cited and systematicalIy misinterpreted by Cook.