Quote Originally Posted by Ray Rogers View Post
???
Ray, I now see those links do not work... try this one by Carey Lea himself:
http://books.google.com/books?id=K5M...lver#PPA342,M1

And another contemporary one - that mentions that Rochelle salt and hydroxide is one of many ways which to make Carey Lea's blue allotropic (collodial) silver:
http://books.google.com/books?id=zZM...otropic+silver

It seems to me I was making the blue form when silvering the mirrors as a side product.