Kodak No. 2 Folding Pocket Brownie - p-60

Negatives may be reduced locally by applying
the above solution to the dense parts with . a
camel's hair brush, rinsing off the reducer with
clear water occasionally to prevent its running
onto the parts of the negative that do not require
reducing.
Under-Development
. This defect would be caused by a mistake in
removing film from the developer too soon, by
using solution too cold or by an error in com-
pounding chemicals. It is obvious that neither
of these defects will occur in .Tank Development,
if instruCtions are properly followed.
Intensification by Re-Development ·
There are a number of different processes for
intensifying under-developed negatives, the most
common being by means of Bichloride of Mer-
cury, and Sodium Sulphite or Ammonia.
This method, though simple to use, has its
disadvantages, as it builds up the highlights
out of proportion to the weaker portions qf the
negative, and also, unless carefully handled is
apt to produce iridescent stains, or granular
markings that are impossible to remove.
While the method of intensification by re-de-
velopment is only comparatively new, the now
common use of Velox and Royal Re-dev e loper
' for Sepia tones on Velox and Bromide prints
will make this the most effective means of in-
tensification.
. 60