This book, "Newcomb-Engelmann"s Populäre Astronomie: Herausgegeben Von Dr. H. C. Vogel, Mit Dem Bildness W. Herschels, 1 Photographischen Tafel Und 196 Holzschnitten (German Edition)", by Simon Newcomb, is a replication. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.