THE COLLODION PROCESS.
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the camera, which can be supported like a table by the hook e.
/is the opening for looking into the camera during an operation.
This opening is closed, when necessary, by the door <7, which can
be opened by the hand passed into the camera through the
sleeves c. The yellow glass window which admits light into the
camera during an operation is under the door h. s is the sliding
frame for holding the focussing glass, or the frame with the
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