http://book.klll.cc/ebooks/author/52565.opds?sort_order=release_date 2025-11-16T05:13:36Z Books by Hardwich, T. Frederick Free eBooks since 1971. Project Gutenberg https://book.klll.cc webmaster@gutenberg.org https://book.klll.cc/gutenberg/favicon.ico 25 1 2025-11-16T05:13:36Z https://en.wikipedia.org/wiki/Thomas_Frederick_Hardwich See also: en.wikipedia 2025-11-16T05:13:36Z https://book.klll.cc/ebooks/63710.opds A Manual of Photographic Chemistry, Including the Practice of the Collodion Process T. Frederick Hardwich