>Has anyone heard of the catatype process? An article in The Camera,
>December 1904 says "Photographic reproduction without light," based on
>"chemical phenomenon known as catalysis," in this case the "decomposition
>of hydrogen peroxide into water and free oxygen ... by presence of finely
>divided silver, or better platinum." Manganese sulfate developer, among
>others, etc. etc.
.
>I thought it sounded like a joke, so checked further.
>Only finding was Cassell, which had clearer description. But it was the above
^^^^^^^^^^^^^^^^^^^^^^^^^^
Come on Judy. You can try a little harder;-)
Luis Nadeau
nadeaul@nbnet.nb.ca
Fredericton, New Brunswick, Canada