The ferrotype and how to make it - The Grian Press

SILVER. 83
mouth bottle, and can be used again with great
advantage in the proportion of two parts of old
to one of new. After using the hat for a year,
the deposit which remains, and is nearly all
metallic silver, may be recovered by the proper
means.
Every precaution should be taken against the
waste of Silver; time and money can not be
better invested than in devising and procuring
appliances for saving the Silver which would
otherwise be lost in the water that runs from
your dark-room sink. When it is taken into
consideration that of all the Silver used in photo-
graphic establishments, in making positives and
negatives, not more than ten i>er cent, of the
whole remains in the finished picture, either posi-
tive or negative, an idea may be formed of the
amount that passes into the sewers, unless in-
tercepted before it reaches the pipes conducting
thereto. This great waste of precious metal has
no excuse, neither can there be any excuse for it,
and, therefore, it claims and is receiving more
attention year by year; in fact, in the larger
cities every gallery has its apparatus for saving
the Silver
Two gentlemen have become famous among
photographers by the attempted enforcement of a
patent which they claimed for recovering the
salts of silver from solution. Their claim cov-
ered every known means of precipitation of
nitrate of silver from solution.