http://www.gutenberg.org/ebooks/subject/35671.opds 2024-11-22T19:54:18Z Books about Photographic chemistry (sorted by popularity) Free eBooks since 1971. Project Gutenberg https://www.gutenberg.org webmaster@gutenberg.org https://www.gutenberg.org/gutenberg/favicon.ico 25 1 2024-11-22T19:54:18Z https://sendtokindle.compellingsciencefiction.com/ebooks/63710.opds A Manual of Photographic Chemistry, Including the Practice of the Collodion Process T. Frederick Hardwich