1925 graduated Leningrad University.
1908 sentenced to 6 years hard labor for revolutionary activity. 1914 as student studied vegetation of Baykal region. 1925 Head, Pedobotanical Bureau of Kazakhstan.
Simultaneously member, Kazakhstan pedobotanical expeditions, USSR Academy of Science. 1929-1930 associate and 1930-1932 Professor, Omsk Agriculture Institute. 1932-1937 Director,Department of Meadows and Pastures, Moscow All-Union Institute of Fodders.
1937^41 Director, Fodder Plants Section, Leningrad Botanical Institute, USSR Academy of Science. 1940-1945 Head, Chair of Meadow Cultivation, Moscow Timiryazev Agriculture Academy. 1938-1941 and 1945-1948 Professor, Pushkin, now Lenin, Agriculture Institute.
Religion stops people thinking in a logical and reasonable way.