http://book.klll.cc/ebooks/author/48938.opds?sort_order=release_date 2025-08-14T03:20:54Z Books by Procter, H. R. (Henry Richardson) (sorted by release date) Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-08-14T03:20:54Z https://book.klll.cc/ebooks/author/48938.opds?sort_order=title Sort Alphabetically by Title 2025-08-14T03:20:54Z https://book.klll.cc/ebooks/author/48938.opds?sort_order=downloads Sort by Popularity 2025-08-14T03:20:54Z https://book.klll.cc/ebooks/57548.opds The Principles of Leather Manufacture H. R. Procter 2025-08-14T03:20:54Z https://book.klll.cc/ebooks/56601.opds A Text-book of Tanning H. R. Procter