Two more pages worth of detail photos to shoot, greyscale, annotate and place in the manuscript. The goal is to break up the pages of text with an equal number of facing illustrative photo pages, and occasionally include a few things not mentioned in the text. If nothing else, doing this is an excellent crash course in how the machine works for *me*, because you have to first understand it before you can explain it, and that explanation is likely to be very useful for others not familiar with the mechanism.