SALTED VP AE ER 193 
Hot water 1000 ccm 16 oz. 
After toning, the prints should be immersed in a 1 per cent 
solution of common salt to stop the toning action, fixed in a 
5 per cent solution of hypo, and well washed. 
If resin-sized paper be used, the following will give black 
and sepia tones direct. For black tones: 
Sodium phosphate 40¢ S07 ea. 
Borax 20 g 154 gr. 
Sodium carbonate ~ l0g 77 gr. 
Sodium chloride 5g 38.5 gr. 
Potassium bichromate 0.01 g 0.08 gr. 
Water 1000 ccm 16 oz. 
For sepia tones: 
Sodium phosphate 20 g 154 gr. 
Borax 40 ¢ 307 gr. 
Sodium chloride 5g 38.5 gr. 
Potassium bichromate 0.08 g 0.6 gr. 
Water 1000 ccm 16 oz. 
Immerse the paper for 20 to 40 seconds, and dry. Sensitise 
on: 
Silver nitrate 50 g 384 gr. 
Lead nitrate 50 g 384 gr. 
Water 1000 ccm 16 oz. 
Neutralise this with sodium carbonate before use. 
The following method is given by Namias: 
Gelatine 25g OZ er 
Zinc chloride, cryst. 6g 46 gr. 
Citric acid 5g 384 er. 
Ammonia 6 ccm 46 min. 
Water 1000 ccm 16 oz. 
Soak the gelatine in half the water, and dissolve with heat; 
dissolve the acid in the remainder of the water, add the 
ammonia and then the zinc, mix the two solutions and filter. 
