DEVELOPING-OUT PAPERS 215 
Potassium metabisulphite 25g 4 oz. 
Water 1000 ccm 20 oz. 
Fix 10 to 15 minutes and wash 1 to 2 hours. 
SHorT Stop BatH.—For all developing papers it is advis- 
able to use a short stop bath. The prints should be rinsed as 
soon as sufficiently developed, and then immersed in: 
Acetic acid, 28% 47 ccm LY oz. 
Water 1000 ccm 32 oz. 
Use a fresh bath for each batch of prints, as the acid will 
become neutralized by the alkali from the developer. To 
reduce glacial acetic acid (9914%) to 28%, add 800 ccm of 
water to 300 ccm of the glacial acetic acid (8 0z. to 3 0z.). 
