Hypo

4 ounces.

Potassium metabisulphite......

200 grains.

Water ..............

1 pint.

Immerse prints face downwards and don't allow them to float on top of the bath, or discoloration is likely to occur.

TO CLEAR UP HIGH-LIGHTS OR REMOVE PRESSURE MARKS FROM THICK BROMIDE PAPERS. For this purpose we like the Wellington formula : -

Potassium iodide..........

30 grains.

Water ..............

10 ounces.

Iodine

3 grains.

Place the print in this solution for a few minutes till the objectionable marks disappear, disregarding the blue tint of the highlights. Then transfer to clean hypo, wash and dry.