Carl Vogt's quarrel with Rudolph Wagner is considered to be a culmination of the materialism dispute in the 19th century. Out of this basically academic issue on the nature of human mental functions, a personal dispute quickly developed which was unrivalled in thematic incisiveness and expression. The aim of this study is the detailed linguistic analysis of the polemics and argumentation in this dispute based on extensive text excerpts, in which for the first time detailed linguistic studies on Vogt and Wagner are presented.