In 1869, he anonymously published a pamphlet entitled Paragraph 143 of the Prussian Penal Code of 14 April 1851 and Its Reaffirmation as Paragraph 152 in the Proposed Penal Code for the North German Confederation.
Godine 1869. anonimno je objavio pamflet pod nazivom Paragraf 143 pruskog krivičnog zakona od 14. aprila 1851. i njegovu reafirmaciju u Paragraf 152 u predlogu krivičnog zakona za Severnonemačku konfederaciju.