Correspondence and research papers (unannotated reprints of scientific discussion papers have been removed to the library otherwise publication details have been noted and indexed).

People, places and research topics discussed:

• folder marked 'Nachtrag Enteropneusta in Handbook der Zoologie 1932 Kukenthal and Krumback Pterobranchia, Rhabdopleuridae, Birger Bergensen and Hjalmar Broch' containing 'rough translation' annotated