Abstract: The purpose of this study is to reconstruct the interaction of the League of Education with the pedological community, which will reveal its role in the formation of pedological experience, subsequently applied in the 20-30s of the XX century in the USSR. The subject of the study is a community created by the League of Education and implementing pedological experiments in the educational space of the beginning of the century. The author pays special attention to the results of the League of Education on the example of Petrograd. The connection between the scientific heritage of the members of the Society and the use of these materials in the later period of the existence of the pedological movement, after 1917, is revealed. The paper analyzes the projects of the League of Education on the radical transformation of the school space, taking into account social and historical aspects. The period of existence of the pedological current before 1917 has been little studied in a historical way. The same should be noted regarding the study and analysis of the activities of the League of Education. This organization is described in most sources in several general paragraphs. The novelty of the research lies in the development and analysis of archival materials related to the organization and activities of the League of Education (the study was conducted on the basis of documents of the Central State Administration of St. Petersburg, TsGIA St. Petersburg, TSGAIPD St. Petersburg). The League of Education played a significant role not only in the analytical study of the educational space, the accumulation of pedological experience, the search for leading pedagogical developments, but also in the replication of these materials. The activities of the organization and its societies were widely covered in publications. Despite the successful and productive activities, the government refused the League of Education. And this is primarily due to the political context, from which, initially, according to the Charter of the organization, members of the society had to be abstracted. The specialists in question in the study continued their work in other institutions and created the foundation of Soviet pedology.

Abstract: The subject of the study is the historical aspect of the formation of the Institute of Pedology and Defectology. The object of the study are the archival materials of the Central State Administration of St. Petersburg, the Central State Educational Institution of St. Petersburg, the GARF (resolutions, minutes of meetings, reports, circulars, notes and other documents of the Psychoneurological Academy, the Petrograd Pedological Institute, the Institute of Preschool Education, the Petrograd Pedagogical Institute of Social Education of Normal and Defective Children, and, directly, the Institute of Pedology and Defectology). The author examines in detail the controversial points in the work of these institutions, attempts to explain the mergers and "consolidation" of departments and universities under study into unified educational organizations. The aim of the work is to reconstruct the process of integration of educational institutions of higher education on the example of the Institute of Pedology and Defectology.   The main conclusions of the study, conducted using methods of historical analysis, systematization of factual material of documents, are: inconsistency of activities within educational institutions with a wide range of departments, the emergence of numerous educational organizations with similar functions (after 1918, the opportunity to organize an educational institution, the main activity of which will be in the field of social engineering and concern the development of the child did not leave labor, since there was a need to work with children's groups), frequent changes of subordinate organizations to monitor the activities of universities, inconsistency of financial support from the state and the results offered by institutions and organizations, an attempt to standardize the educational space to improve the quality of education by senior management after 1921 (Decree on the management of universities), formal execution of orders, etc. A special contribution of the author is an appeal to the business correspondence of the institutions under study.