Thanks, mine was a hardcover book that even gave the recipe they used for the light sensitive reaction.
I honestly can't recall the author but I donated it to a then local library.
As I recall, egg whites lemon juice and long exposure to sunlight. Some other stuff I can't recall.
I honestly can't recall the author but I donated it to a then local library.
As I recall, egg whites lemon juice and long exposure to sunlight. Some other stuff I can't recall.