The ferrotype and how to make it - The Grian Press

DEVELOPER AND DEVELOrMKN f. 99
paiiis-taking study. Again, I say to the Fer-
rotypist,
Observe, and remember
Experiment, and remember!
If you make a mistake, remember
Or are successful, remember
Remember every thing !
Fixing Solution.—A bath dish of the same
size as that used for the silver solution, large
enough to take the largest plate exposed, should
be used for the cyanide of potassium, or fixing
solution ;
the plates should be fixed or cleared up
by dipping them into the solution in the same
manner as the collodion ized plates are immersed
in the silver bath. The cyanide dish should
always be covered, to avoid the deleterious fumes
which arise from that solution, and it is for this
reason, as well as its greater convenience, that
such a bath dish is recommended.
Rubber dippers are the best for both the silver
and the fixing solutions, as the vulcanized rubber
has no appreciable effect on either.
Cyanide of Potassium, and its use as a
Fixing Solution.—The sensitized plate having
been exposed, and the image developed, it re-
quires to pass through yet further treatment to
render the image indestructible by light. It ia
true that the developed image is permanent, but
it is surrounded by, and contains in its shadows,
the unchanged iodide and other salts of silver,
which, upon exposure to light, would be de-
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