102 PHOTOGRAPHIC FACTS AND FORMULAS 
B. Potassium carbonate 100 g 1 oz. 
Water 1000 ccm 10 oz. 
Mix 3 parts A with 1 part B. 
Metol-soda.—Replace the potassium carbonate in B by 
Sodium carbonate, dry 50 g 384 gr. 
For use mix A and B in equal volumes. 
One solution: 
Metol I5¢g fdisk 
Sodium sulphite, dry 60 g 460 er. 
Sodium carbonate, dry 75g 576 gr. 
Potassium bromide 15g 11 S.er, 
Water 1000 ccm OO 
For studio work mix with an equal volume of water. 
landscape work mix I part with 2 parts water. 
Metol poisoning (Beers)—The hands should be dipped 
into a saturated solution of paraffine in gasoline (petrol) 
before using metol. Less severe forms of the trouble can be 
treated with: 
Carbolic acid 21g 160 ger. 
Powdered calamine aloe 240 gr. 
Zinc oxide 63 g 480 gr. 
Glycerine 65 ccm 1 oz. 
Lime water 250 ccm 4 oz. 
Rose water to 1000 ccm 16 oz. 
Rub the zinc and calamine into a smooth paste with the 
glycerine, and add the carbolic acid and the rest of the © 
waters. This may be applied during the day. The following 
should be applied at night: 
Salicylic acid lg 15 gr. 
Boric acid 4g 60 gr. 
Starch powder 8g 120 er. 
Zinc oxide 4g 60 gr. 
Petrolatum 329 1 oz. 
