The article is devoted to one of the founders of sanitary and demographic statistics in Russia. The works of S. A. Novoselsky covering issues of natality, total and child mortality, average life expectancy attained blaze of publicity and until present time keep their significance. S. A. Novoselsky developed for the first time both complete Russian population mortality tables and first the USSR population mortality tables.
Keywords: S. A. Novoselsky; demographic statistics; sanitary statistics.