86 PHOTOGRAPHIC FACTS AND FORMULAS 
Sodium carbonate, cryst. 50 g 
Sodium sulphite, dry 25g 
Hypo 200 g 
Water 1000 ccm 
Or: 
Hypo 30 g 
Potassium metabisulphite 40 ¢g 
Sodium carbonate, cryst. 120 g 
Potassium bromide lg 
Water 1000 ccm 
Add 2 per cent edinol just before use. 
Pigg. — 
Pyrogallol 15¢ 
Amidol 15¢ 
Sodium sulphite, sat. sol. 240 ccm 
Sodium carbonate, sat. sol. 480 ccm 
Potassium cyanide, sat. sol. 240 ccm 
Crémier.— 
Amidol 10¢g 
Sodium sulphite, dry 50 g 
Hypo 125¢ 
Water 1000 ccm 
Raymond.— 
Hydrochinon 8g 
Metol 4¢ 
Sodium sulphite, dry 30 g 
Sodium carbonate, cryst. 80 g 
Hypo 6g 
Water 1000 ccm 
Crémier, for lantern slide work.— 
Sodium sulphite, dry I5¢ 
Hydrochinon 2.52 
Caustic soda 15g 
384 gr. 
192 gr. 
3 1/5iez: 
16 oz. 
230 gr. 
307 gr. 
920 gr. 
7.7 gf. 
16 oz. 
11.5 gr. 
11.5 gr. 
4 oz. 
8 oz. 
4 oz. 
77 gr. 
384 gr. 
2 oz. 
16 oz. 
61 gr. 
30.7 gr. 
230 gr. 
614 gr. 
46 gr. 
16 oz. 
115 gr. 
19.2 gr. 
115 or: 
