Marion and Co., compiler · London : Marion and Co. · leaf 75
e after- wards very carefully washed. Lines across the Negative. If the developing solution has not been caused to flow in one wave across the plate, but has left one portion of the film dry whilst another has been wetted with the developer, the result is that there is a line which distinctly marks… … plan is, however, to make use of the rocking developing- dish, which we here illustrate.
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