This book, "Die Weltanschauung Eines Modernen Naturforschers: Ein Nicht-Kritisches Referat Ãœber Mach"S "Analyse Der Empfindungen" (German Edition)", by Theodor Beer, 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.