wrote

What happens when pottasium ferricyanide is applied on selective areas
of selenium-toned fibre based prints

In my experience, not much of anything. I tone 1:9 in KRST or 1:24
Polytoner for ~5 minutes.

Esalen? I thought that went the way of faded San Francisco Art
Nouveau body paint ...

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Nicholas O. Lindan, Cleveland, Ohio
Consulting Engineer: Electronics; Informatics; Photonics.
To reply, remove spaces: n o lindan at ix . netcom . com
psst.. want to buy an f-stop timer? nolindan.com/da/fstop/