Early Work In Photography
A Text-book For Beginners

98 Early Work in Photography. For normal exposures take three parts of A to once ait if B and add a few drops of a 10 per cent, solution ot Porasl bromide soft, delicate negative is required, use 6 parts 01 A t part of B,and 2 partsaof water; of course, a longer time must be allowed for development. Eikonogen and Hydroquinone Compound Developer. 240 grains A.—Eikonogen Hydroquinone Sodium sulphite Potassium bromide 60 720 8 » 30 ounces The sodium sulphite should be dissolved first; the other ingredients may then be added and dissolved in a thin glass flask by heat. B.____Potassiuin carbonate Water, to 480 grains 10 ounces For normal exposures, use three parts of A to one of B. Acid Fixing Path. This bath combines the following advantages: It remains ==--= water“ provided they have been left in the bath a sufficient time. Prepare two solutions. A.__Hyposulphite of soda .. Water •• •• B.—Water -• •• Sulphuric acid 1 Sulphite of Sodium crystals Chrome Alum 4 15 ounces ounces 5 . . 30 minims 240 grains 180 „ After the ingredients are dissolved pour B solution into A. DURING THE WINTER one-half THE QUANTITY OF A Is SUTRCIERTC should be allowed to remain in the bath five to ten minutes after the bromide of silver appears to be dis-