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:

• Mem Australian Museum, vol 3, pp 205-346, 1897 "The Enteropneust of Funafuti" by JP Hill. Annotated
  
  
• envelope marked "JP Hill 1894, Balanoglossus Australiaensis" containing a photocopy of "Proceedings of the Linnean Society of New South Wales, 28 November 1894," 'On a new species of Enteropneusta (Ptychodera Australiensis) from the coast of New South Wales' by Jas P Hill
  
  
• Annals of the South African Museum, vol 32, part 5, 1940, pp 293-380. "17. The Enteropneust from Inyack Island, Delagoa Bay" by CJ van der Horst, Annotated. Accompanied by research notes [2 copies]
  
  
• Papers from Dr Th Mortensen's Pacific Expedition 1914-1916, CJ van der Horst "Observations on some Enteropneust" Annotated
  
  
• research notes "CJ van der Horst 1934," 'Die Entreopneusten ans den Meeven der USSR' jahrb Abt Anat Bd 58 pp 66-100 (translation with assistance of Gudrin Sarnes 26 October 1992)