I like the photos! They tell a story in their own.
I think I would split up the layout of the titles and the author's name. I would do it like this:
PHOTOGRAPHIC EMULSIONS (all in caps, on a line by themself. Use a larger font for this line, and justify it across the top of the book.)
Making, Coating, Testing (all on the second line. Perhaps in caps too for consistency, but I think I would put them in italics, and at a smaller font than the first line of the title.)
(Then the 3 photos just as you have them.)
R. G. Mowrey (Mix of caps and lower case. Right Justified. Note the omission of "by".)
Note I changed the title of your book slightly - from "PHOTOGRAPHIC EMULSION" to "PHOTOGRAPHIC EMULSIONS". I think it reads better, especially when the title is split up as I propose.