Аңдатпа
In this article the author presents an analysis of the history of the “Proceedings” of the Orenburg Scientific Archive Commission (osac) as a historical source. In the course of the thirty years of its activities, the osac has done great work sorting out of archival files of the Orenburg Governor-General’s office and the archives of other institutions of the province, as well as of the archival institutions in other regions. From the beginning the osac’s members were engaged in active scientific-research work and publication of sources. By the efforts of the osac activists, 35 volumes of “Proceedings” have been published.