Kovalev Mikhail V. RussiaArchive of the Russian Academy of Sciences, 34, Novocheryemushkinskaya Str., Moscow, 117218, Russiaстарший научный сотрудниккандидат исторических наукkovalevmv@yandex.ru Author's articles Sanitary Condition of the Gully System and the Problem of the Organization of Runoff from the City Territory of Saratov in the Late XIX Century