M. M. Kamenskii and D. O. Sviatskii in the historical project of N. A. Morozov

The article is devoted to one of the pages of Russian scientific history. The participation of astronomers (M.M. Kamenskii and D.O. Sviatskii) in historical studies of N.A. Morozov. The article uses the materials from Kazan Scientific Library of Manuscripts and Rare Books funds, as well as the archives of the Academy of Sciences.