This
is a very short chapter. Pellet prints are also known as positive cyanotypes
and were invented by a Mr H. Pellet, about whom mercifully little else
is known other than he registered his invention in 1878. The process is
very similar to a straight cyanotype with two basic differences. As it
is a positive process you can make a positive print from a film positive.
This saves a step in the enlarged negative stage. Simply enlarge your
camera negative onto line or lith film to obtain a positive and use this
to print your Pellet print. Secondly, the exposed print has to be developed
before washing, unlike the cyanotype which only needs washing in water.