French surrealist author Raymond Roussel’s novel Locus solus depicted a brain-in-a-vat apparatus in which the head of the revolutionary orator Georges Danton was reanimated and made to speak. This scene of mechanically-produced language echoes Roussel’s own method of quasi-mechanical literary production as presented in How I wrote certain of my books. Roussel’s work participates in a wider fascination in modern French thought with the fragile connection, or violent disjuncture, between the body and mind. This paper discusses a number of instances (...) in which bodiless and reanimated heads played a central role in reflections on knowledge, art, and individuality. Roussel’s works offer a sidelong commentary on the notion of explanation in the sciences and the cult of reason in a technocratic society. (shrink)