There is considered the article by A.A. Fet about the novel by N.G. Chernyshevsky “What is to Be Done?” literary attention to which is the reason for interpretation of the poet’s critical thoughts. These thoughts need additional clarifications and originate the research genre “commentary to commentaries”.

There are considered the censorial materials that follow the journal Domestic notes in 1840-1880s, which in the period of its editing by A.A. Kraevsky had the time of prosperity (1839-1846) and gradual extinction (1839- 1867). The rise of censored reproofs and prohibitions took place during all the time of editing the journal by N.A. Nekrasov and M.E. Saltykov-Shchedrin till closing the edition by the authorities (1868-1884).