The Museum activist. In 1903-09 studied to be a biologist. Department of Courses of P. F. Lesgaft. From 1911 the founder and owner. Art Bureau in Petrograd, the organizer of exhibitions of St. Petersburg. and Mosk. artists and sales of their paintings. After the revolution he worked in various. museums in 1932-34 et al. The Russian Museum in Leningrad, and later the revolutionary Museum in Moscow.