. The American annual of photography. AT ROTHENBURG. T. F. BROGDEN. 139 for first development, as far as it will go, washed for aboutsixty seconds in running water and dried. The bichromate reverser tends to toughen the film and ismuch more convenient to use than permanganate as it hasalways been a pet theory of the writers that i gram of potas-sium permanganate, properly used, would dye the universe arich pink, from his experiences in getting it out of sinks, object of allowing the plates to dry after reversal is totoughen them so that there will be no danger of there


. The American annual of photography. AT ROTHENBURG. T. F. BROGDEN. 139 for first development, as far as it will go, washed for aboutsixty seconds in running water and dried. The bichromate reverser tends to toughen the film and ismuch more convenient to use than permanganate as it hasalways been a pet theory of the writers that i gram of potas-sium permanganate, properly used, would dye the universe arich pink, from his experiences in getting it out of sinks, object of allowing the plates to dry after reversal is totoughen them so that there will be no danger of there be any trouble from this source, rinse the platesafter reversal in the bichromate solution, and then place fortwo minutes in a solution of chrome-alum (which should be indark purple crystals, without any grey powder on the surface,—and will be if it is good) of a strength of i%—lo grams tothe litre. Rinse, allow to dry, and re-develop, and frilling willvanish. Now after your plate is done. If it is over-exposed it willbe thin and


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