The origins and development of Leopold Blaustein's descriptive psychology: An essay in the heritage of the Lvov-Warsaw School.

This article critically analyzes the concept of descriptive psychology, which was used by Blaustein as part of his struggles with the Brentanian heritage which shaped the Lvov-Warsaw School. It is argued that because of his studies under the Gestaltists and Husserl, Blaustein was able to redefine the basics of Brentano's and Twardowski's projects of empirical and descriptive psychology. To show the divergent motives present in Blaustein's psychology, the article presents a biography of Blaustein in the context of psychology in the Poland and Europe of his times.