174 PHOTOGRAPHIC FACTS AND FORMULAS . 
Water 500 ccm 8 oz. 
B. Silver nitrate 32 g 245 er. 
Water 500 ccm 8 oz. 
The gelatine should be equal parts of soft and hard. Mix 
as above. Vigorous printing, suitable for sulphocyanide and 
combined baths. , 
W ade.— 
A. Ammonium chloride 24¢ 18.5 gr. 
Rochelle salts 24¢ 18.5 gr. 
Citric acid 15.6¢ 119.8 gr. 
Alum 5.2¢ 40 er. 
Gelatine 32 g 245 er. 
Water 500 ccm 8 oz. 
B. Silver nitrate 96 g 737 gr. 
Water 500 ccm 8 oz. 
Mix as above. Vigorous but rather slow printing, suitable 
for both baths. 
Beadle.— 
A. Ammonium chloride 3.5 ¢ 26.9 gr. 
Rochelle salts = as 38 gr. 
Citric acid 20 g 154 gr. 
Alum 5g 38 gr. 
Water 500 ccm 8 oz. 
B. Silver nitrate 57.5 288 gr. 
Water 500 ccm 8 oz. 
Mix as above. Vigorous and fast printing, suitable for both 
baths. 
Ashman.— 
A. Ammonium chloride 42¢ 32.3 gr. 
Tartaric acid 4¢ 30.7 gr. 
Sodium carbonate, cryst. q. Ss. q.s. 
Citric acid 5¢g 38 gr. 
Ammonium citrate I5¢g 115 gr. 
