Since 1941 Head, Chair of Botanical Geography, Geography Faculty, Leningrad University. During 1920's and 1930's accompanied following expeditions: 1926 expedition of Russia Botanical Society. 1927 expedition of Moscow Naturalists’ Society and Syullivan Bryological Society.
1935 expedition of Geography Society. 1936 expedition of Leningrad Naturalists’ Society. In 1940’s was Professor, Chair of Physical Geography, Pedagogical Institute.