http://book.klll.cc/ebooks/subject/30153.opds 2025-11-15T23:20:57Z Books about Arithmetic -- Outlines, syllabi, etc. Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-15T23:20:57Z https://book.klll.cc/ebooks/52429.opds Fifteen Institute Lessons in Language, Arithmetic, and U.S. History William Francis Lewis Sanders