DEVELOPMENT 85 
Potassium bromide 0.05 g 0.768 gr. 
Water 1000 ccm 32 oz. 
CoMBINED DEVELOPING AND Frx1nc.—This process fre- 
quently crops up and numerous formulas have been given 
for its use. The following are arranged in chronological 
order and the later ones do give some sort of satisfactory 
negatives. 
Punnett.— 
A. Potassium metabisulphite 2¢ 35 28: 
Ortol 32g 5215 en) 
Water | 400 ccm 10 oz. 
B. Caustic soda 4g 60 gr. 
Potassium bromide 4¢ 60 gr. 
Water 500 ccm 16 oz. 
C. Hypo 25¢g 1 oz. 
Water 500 ccm 20 oz. 
For use mix 1 part A, 1 part B, and 2 parts water. 
Hanneke.— 
A. Sodium sulphite, dry 200 g 1536 gr. 
Caustic potash 93 g /14 gr. 
Pyrocatechin 93 g 714 gr. 
Water 1000 cem — 16 oz. 
B. Hypo 200 g 3/5 Oz: 
Water 1000 ccm 16 oz. 
For use mix 12 parts A, 20 parts B, and 30 parts water. 
Baker.— 
Hydrochinon Vhs) 124 5/5/28) 
Potassium metabisulphite I5 g {i5/er. 
Caustic potash 50 g 384 gr. 
Hypo 200 g 8) WAS) Od. 
Water 1000 ccm 16 oz. 
Or: 
Edinol : | Tea 57 Dian: 
