The Dictionary Of Photography


	Amidol
	Solution B. Water ............... 20 ozs. Soda crystals ... ... ... ... 2 ,, Solution C. Water ............... 20 ozs. Sodium sulphite, cryst, pure ...... 4 ,, Results similar to pyro may be obtained with Solution A............... 10 parts. B............ 6 - 10 .. Water ............... 70 ,, Bromide (1 : 10) ............ 3 ,,
	But this formula may be considerably modified, according to requirements; it is not, however, advisable to increase the quantity of alkali, for fear of inducing fog. For over-exposed plates, add the solution B in the above formula little by little, until the desired effect is obtained, never exceeding the amount above prescribed. Images of a softer character are obtained as follows:



	This solution remains colourless for a long time in full and air-tight vessels. When opened it changes from yellow to red, which, however, does not affect the developing power, or colora-tion of plates. For use take - Solution D ... ......... ... 5 parts. Water............ 50 - 70 .. Solution C............ 20 - 30 ,, Bromide (1 : 10) ............ i£ ,, 22