Short description: In Russian. Polyansky, Ivan Ivanovich. Education of an evolutionary worldview through observations in nature. Moscow; Leningrad: State Publishing House, 1928. Vospitanie evolyutsionnogo mirovozzreniya putem nablyudeniy v prirode. In Russian /Education of an evolutionary worldview through observations in nature. The image is provided for reference only. It may reflect condition of one of the available copies or only help in identifying the edition. Please feel free to contact us for a detailed description of the copies available. SKU9229125