originally was the name of an early version which used carbon
powder as a paint in the gelatine. The pigment (paper,process)
is working by (mainly) watercolours.
The everyday language is not scientific but full with customs.
So, both name are meaning the both processes.
A better trick if the same name can mean a few basicly
different processes. Eg. the chromotypia is a special finishing/painting process for photographs from the 1860-s,
and a printing process, to make color postcards (about the
first quarter of this century).
But all classical farces where founded on misunderstandings...
Flesch Ba'lint
Budapest Hungary
arche@elender.hu
100263.262@compuserve.com