Just sent my previous message when it occurred to me that you might want
to email Terry King as he has also made some chrysotypes. I can't recall
the details, but he certainly used much simpler chemistry. I don't think
he ever got anything like the range of effects Mike has got.
I made one or two experimental prints using gold years ago - when Mike
Ware first showed his. I got delicate purple prints with the densest areas
only a mid tone and I decided to give up my attempts.
Peter Marshall
On Fixing Shadows and elsewhere:
http://www.people.virginia.edu/~ds8s
Family Pictures, German Indications, London demonstrations &
The Buildings of London etc: http://www.spelthorne.ac.uk/pm/