Towards the end of the 19th century, the activities of the Literary Society had declined, and the maintenance of the library in Paris was transferred in 1893 to the responsibility of the Polish Academy of Sciences and Letters in Kraków.Zaleski (b). in 1926, Władysław Mickiewicz (son of Adam) bequeathed his important collection of manuscripts to the library. In the following period, a number of valuable books, manuscripts and artworks which the library could not properly maintain were sent to museums and institutions in the now independent Poland.
