Boretius F. Butterflies of Europe. A description of the most famous species and a guide to collecting and identifying butterflies and caterpillars. In Russian (ask us if in doubt)/Boretsius F. Babochki Evropy. Opisanie naibolee izvestnykh vidov i rukovodstvo k sobiraniyu i opredeleniyu babochek i gusenits. With 18 chromolytographic tables and 24 figures in the text. Second edition. S.Pb. Volfa Publishing House, 1912, 251s. SKUalb71889d0c5568182f.