SIM – Plate 27b
Plate 27, Fig. 51, 1% Gold chloride and 1% Copper sulphate, equal quantities mixed: We need hardly say that this is a “unique” picture for Gold chloride and Copper sulphate
Plate 27, Fig. 51, 1% Gold chloride and 1% Copper sulphate, equal quantities mixed: We need hardly say that this is a “unique” picture for Gold chloride and Copper sulphate