DEVELOPMENT 87 
Potassium bromide Se IS er. 
Water 1000 cem 16 oz. 
The actual developer is 4 parts of the above, 8 parts water, 
and 2% parts of 20 per cent solution of hypo. 
Haysede.— 
Sodium sulphite, dry 20 g 154 gr. 
Hypo 320 g 2457 gr. 
Sodium carbonate, cryst. 10¢ 77 gr. 
Potassium bromide — 10g 77 gr. 
Hydrochinon 25 ¢ 192 gr. 
Ammonia, 28% sol. 10 ccm 77 min. 
Water 1000 ccm 16 oz. 
E.W— 
Hydrochinon 12'5\¢ 96 gr. 
Sodium sulphite, dry 50 g 384 gr. 
Sodium carbonate, cryst. 100 g 770 gr. 
Hypo 200 g Sil/S.0z: 
Ammonia 50 ccm 384 min. 
Water 1000 ccm 16 oz. 
Otsuki & Sudzukit.— 
A. Metoquinone ) 6g 36 gr. 
Sodium sulphite, dry 30 g 180 gr. 
Water 600 ccm 12 oz. 
B. Hypo 60 g 576 gr. 
Caustic soda 5g 48 gr. 
Water 400 ccm 8 Oz. 
Mix in equal volumes just before use. 
Bunel.— 
Amidol 5g 38.5 gr. 
Sodium sulphite, dry 30 g 230 gr. 
Acetone 80 ccm 614 min. 
Hypo 50 g 385 gr. 
Water 1000 ccm 16 oz. 
