N. A. Severtsov Ornithology and Ornithological Geography of Russia. In Russian /Severtsov N. A. Ornitologiya i ornitologicheskaya geografiya Rossii. St. Petersburg type. Public benefit 1867. 20 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalb68f9badd12ac99c6.