Karl Fedorovich Fetterlein as an employee of the Rossika branch of the Imperial Public Library

A unique collection of foreign works about Russia in the Imperial Public Library (now the Russian National Library), which went down in history under the name Rossika, was collected with the direct participation of senior librarian K.F. Fetterlein (1836-1902). This study has recreated for the first time the devotee’s life and analyzed his 40-year work as head of the Rossika branch. The study gives characteristics of the complete catalog of the collection compiled by K.F. Fetterlein under supervision of M.A. Korf and published in 1873. The contribution of the scientist to historical science and bibliography has been revealed.