"Something I’ve been meaning to ask you, do you recall the discussion we had some time ago about the scans from Mark’s book you posted? They are on yellow paper. When I commented that I was surprised Mark would publish a book on yellow paper, you indicated that the yellow paper was due to what you used to print the scans on.
Trying to identify people, adults or children, without being able to discern their skin tones, which are masked by the yellow paper, is a handicap.
Is it possible for you to supply the same images in black and white, by printing them out on white paper?"
here are the scans, using a different scanner:
