| Description | Letters from Hertha Sieverts, from Wurttemberg, Germany; Geol Pal Institut der Universitat, Berlin, Germany; Geologisch-palaeontologisches Institut und Museum der Universitat, Bonn, Germany. Letters in German included.
Correspondence regarding the sending of a papers, the loan of Balanocrinus specimens, and a query regarding blastoids. File includes an envelope containing photographs of Marsupites.
Hertha Doreck nee Hertha Sieverts, now Hertha Doreck-Sieverts or Hertha Sieverts-Doreck |