The biography and oeuvre of Stefan Żeromski are the important areas of art historian research. The text refers to the writer’s short period of life between the years 1892-1896, when he was bound to the Polish National Museum in Rapperswil as a librarian. In regard to the preserved correspondence between Żeromski and the milieu of art historians and museum professionals of that time we receive a fragmentary image of the problems of Polish museum science on emigration at the end of the 19th century. The writer fulfilled actively the main goal of the Rapperswil museum activity. He used to collect and describe the souvenirs related to Polish emigration. He also used to design and arrange exposition rooms. His concepts of arranging the Swiss centre took the character, the collection topic and the facilities of the estate into consideration. He was an author of museum catalogues on Adam Mickiewicz or Tadeusz Kościuszko’s collections among others. His activity as a museum professional was highly ranked by splendid art connoisseurs and museologists. Despite numerous obstacles he was emotionally engaged and bound to the Rapperswil museum. He perceived it as a modern institution of scientific and didactic values. He also accentuated this vision in his literary work.