These three Kodak publications are available as PDF downloads from archive.org. As you can see, they’re quite old, and the copyright has expired. Kodak Monograph 1: The silver bromide grain of photographic emulsions, Adrian Peter Herman Trivelli (1921) Kodak Monograph 2: The theory of development, Adolph H. Nietz (1922) The Photographic Negative, William Henry Burbank [...]