In the 19th century literature it is. You must have just joined this group.
We've been having a discussion about why it is extremely difficult to come
up with a working substitute for gelatin. Try to download the last month of
files.
>
>
>Sil Horwitz, FPSA
>Technical Editor, PSA Journal
^^^^^^^^^^^^^^^^
Why don't you tell us what the journal has in store regarding articles on
alt-photo processes?
Luis Nadeau
NADEAUL@NBNET.NB.CA
Fredericton, New Brunswick, Canada
>silh@iag.net