EN
The paper is an English translation of Rozwój ogólnego postępowania administracyjnego by Zbigniew Janowicz published originally in Polish in “Ruch Prawniczy, Ekonomiczny i Socjologiczny” in 1970. The text is published as a part of a jubiliee edition of the “Adam Mickiewicz University Law Review. 100th Anniversary of the Faculty of Law and Administration” devoted to the achievements of the late Professors of the Faculty of Law and Administration of the Adam Mickiewicz University, Poznań.