El la "Camera obscura", by Hildebrand 68874 [Author: Hildebrand] [Language: Esperanto] [Link: https://www.gutenberg.org/6/8/8/7/68874] [Files: 68874-0.txt; 68874-h.htm] Thanks to Andrew Sly, Miroslav Malovec and the Online Distributed Proofreading Team at https://www.pgdp.net (his file was produced from images generously made available by Biblioteka Cyfrowa KUL.) Regards, Al