This part of the book talked about the various precautions to take if you want to make a cyan with different colors, such as Basic tea toner. I found this to be very interesting, but was more intrigued by the fact that you can tone a cyan print with cat urine (fact courtesy of Thomas & Austin). When doing cyan myself I found that I liked the idea of sticking to the original cyan process (blue toned). The major difficulty with cyan printing and all contact print processes is that if you don’t have a fan or some sort of cooling device in your UV oven it will overheat and continually cause you to need longer exposures. I found this out the hard way of course, as did many in our class.