Ferrous sulfate, 79 Formaldehyde, 17

G

Gelatine solution, 37 Glycerol, 29, 33, 79 Glycerol a,

g-dichlorohydrin, 29-31 Glycerol a-monochlorohydrin, 33-35

H

Hydrazine sulfate, 37 40 Hydrochloric acid, 17, 30, 34, 47,

71 Hydroquinone, 85

M