The set includes statistical material published by the Zemstvo, as well as general works and local studies in this field. Material concerns agrarian development and the peasantry of the 19th-20th centuries and includes demographic statistics, data on health and medical care, primary education and libraries, meterological data, data about large estates, handcrafts and industry in cities. CRL holds an incomplete set (covering titles RZ1-RZ408 as indexed in the collection guide). Individual titles are cataloged separately.