The Dictionary Of Photography

A True Historic Record Of The Art & Practice Of Photography 100 Years Ago.

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form of the light through the film, there is not enough emulsion on the plate.
"The plates, as they are coated, are placed on the levelling slab to set. Some emulsion is sure to be spilled into the flat dish. It is allowed to set, is then scraped up with a strip of glass, and remelted. For the method of coating which we recommend to those not skilled in the wet process the pneumatic
Fig. 48.
holder is not required. It is necessary, however, to make a small tripod. This is done by gluing three somewhat large-sized shot on to a quarter-plate in the form of a triangle, (see fig. 48).
" There is also needed a glass rod about two inches longer than the width of the plate to be coated, and a jam pot or glass measure in which to stand the rod. The dark-room lamp is placed within a few inches of the left-hand end of the levelling shelf, and to the back of it. There is to the left of the lamp
Fig. 49.
room only for the pile of plates, which in this case have the polished side upwards. The rod standing in the jam-pot is to the right of the lamp. The teapot with emulsion in it, as before, is in front of the lamp, and farther forward still, near the front edge of the slab, is the small tripod mentioned. A plate is taken from the pile, and placed on the tripod.
M A pool of emulsion, about half covering the plate, is poured from the teapot. The glass rod is taken between the fingers