Page 58 - The Wellington photographic handbook

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GENERAL REMARKS.
THE following instructions apply to all grades of WELLING-
TON Bromide and should be carefully read before any
work is attempted.
All bromide paper is extremely sensitive to light ; the packets,
therefore, must be opened and all work carried out in the dark-room.
In this respect Bromide paper resembles plates, but it possesses
the advantage that a great deal more light can be used during
manipulation. With bromide paper it is possible to employ yellow
light and plenty of it. If gas or lamplight is used, then two thick-
nesses of yellow glass or fabric will render it perfectly safe, while
for daylight three thicknesses are all-sufficient. Such a light
allows everything in the dark-room to be seen with comfort after
a few minutes, and is far less trying to the eyes than the dim ruby
light so frequently used.
A packet of Bromide Paper being taken into the dark-room
and opened, will be found to contain a number of sheets of paper
rather stiffer than might be expected when their thickness is taken
into consideration. They also have a very slight tendency to curl.
This is not enough to cause inconvenience, but is useful as indicating
the sensitive side. The stiffness is due to the fact that the paper
is coated on one side with a gelatine emulsion containing Silver
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