http://book.klll.cc/ebooks/subject/41364.opds 2025-08-21T03:34:34Z Books about Didactic literature (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-21T03:34:34Z https://book.klll.cc/ebooks/76029.opds The pearl of days : or, The advantages of the Sabbath to the working classes Barbara H. Farquhar