John, that has the potential to be a wonderful resource.

As an experiment, I tried printing out a page, as that would be the most useful use to me. However, not only was the image too wide and long to print on one A4 page, it printed yellow on black instead of black on white (very wasteful of ink). Does anyone else find this problem, or can anyone tell me how to correct this please? John, have you tried printing any of the images from the site yourself? What am I doing wrong? (I've never found an image elsewhere that prints in the negative.)

Joan