Vladimir Weidle: the Perm note in the life of a scientist

The article is devoted to the study of the biography of the famous Russian scientist V. V. Weidle, relating to the period he worked at the Perm State University (1917-1921), including the "Tomsk evacuation" in 191920. The article is structured as a chronologically organized statement of events based on archival materials and autobiographical writings by Weidle. In the author's comments an attempt is made to estimate the "Permian period" of the scientist's life in the context of his subsequent emigration to France. Also the problems of main scientific works by Weidle is considered as related with his life in Perm.