In addition, the first description suggests the paper was darkened completely before the exposure and bleached during the exposure to reveal the image..., while the second suggests the darkening took place while exposing and the image revealed afterwards?!...
Anyone else who can elaborate on the direct positive processes Hippolyte applied (both the silver version and/or the cyanotype version) and especially the chemistry going on during the processes?
Interesting book by the way you referenced Igor (http://www.christopherjames-studio.c...d/thebook.html). I am surprised Christopher's book is not listed on the Alternative Photography website as well... might be a nice addition.
Ah... well, it is listed, but not on the "Books" main page, but under "Amazone books":