Forgotten chapters from the history of science in the USSR

The article is devoted to the research project of N.A. Morozov on the Study the History of Science. The work is based on archival materials of the Academy of Sciences (N.A. Morozov's Fund). It describes the fate of two N.A. Morozov's members in Lesgaft Institute — V.R. Mroczek and M.S. Dmitrevsky, and it also analyses the work of "Historical and methodological society.”