Marion and Co., author · London W. : Marion and Co., 22 and 23 Soho Square · leaf 80
ur half an ounce of hydrochloric acid into it. If the plate be dipped in this solution for a few minutes the brown or yellow colour will disappear. The plate must be after- wards very carefully washed. Lines across the Negative. If the developing solution has not been caused to flow in one wave… … camel's-hair brush, used as we directed to prevent air- bubbles, will also prevent this defect if the operator
Photography -- Handbooks, manuals, etc
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.