Includes information (spravki) on the foundation and activity of the Seismology Institute of the Academy of Sciences of the USSR (SIAN); materials by Scientific Council; annual and perspective plans of research work; annual reports on SIAN's activity; reports on work of seismological stations, departments, and labor[atorie]s; orders for the Institute from 1931 through 1945; protocols of sessions of the Gravitational Commission for 1929; reports on the activity of the Ilezkaya Seismological Station for 1929 and 1930, those of the Zakavkazskaya, Tadzhikskaya, Turkmanskaya Expeditions for 1931; a list of publications of the SIAN from 1928 through 1933; a collection of the materials on the earthquakes (press-cuttings and information from the places) for 1905 through 1933; a list of earthquakes in Stalinabad from 1908 through 1935; financial and other documents; materials concerning the organization and carrying on of the Zakavkazskaya, Osetinskaya, Tadzhikskaya, Karel skaya, Pamirskaya, Kurskaya, Ishimbayevskaya gravitational and seismological expeditions; correspondence on organizing seismological service upon the territory of the USSR, on supplying the stations with equipment and devices, on investigation of regions of Mongolia, Kokand and Kuzbass, on seismological districting of USSR and others.