Request for the papers: 1. Algologiske Notiser III, Det Kgl. Norske. Vid. Selsk. Skrifter 1906, no. 8. Trondhjem 1907. 2. Antarctic and subantarctic Corallinaceae (Wissenschaftliche Ergebnisse der schwedischen Südpolar-Expedition 1901-1903. 3. Marine Algae. II. Corallinaceae. (National Antarctic Expedition 1901-1904. Natural History, Vol. III. London 1907).