Fritz Mohr, the dreamer whose dream of the 'category' thus led to the second analysis in his life—the first had taken place six months earlier—had understood right from the beginning how to associate freely and without tendency. It was surprising that Fritz produced no association to the remarkable use of the word 'category' in the form of a verb. The interpretation of the part of the dream about the form is therefore: Fritz pleads for a mild punishment, that is he has done or wished something that is forbidden, and which may be punishable. The "reverse language" is a special chapter in Fritz' life. The technique of this language is of some significance for the psychology of the Fritz and his brother. The dream, which faithfully mirrors the psychic situation, was analysed seven weeks after the dream of the 'category'. The dream analyses submitted here afford one an insight into the sexual life of boys during the latency-period.