Theory books-most up to date digitized

[Alan Johnson]

Seems to be these two digitized in 2023:

Photographic processing chemistry : L.F.A. Mason : Free Download, Borrow, and Streaming : Internet Archive

archive.org

Introduction to photographic theory : the silver halide process : Carroll, Burt Haring, 1896- : Free Download, Borrow, and Streaming : Internet Archive

vi, 355 p. : 24 cm

archive.org

There was a later revised edition of this one in 1968:

https://babel.hathitrust.org/cgi/pt?id=mdp.39015026286255&seq=1

Any others that have been found please do post them.