SIM – Plate 27
Plate 27, Fig. 50, 1% Gold chloride and 1% Copper sulphate, equal quantities mixed: The colours of the original were clear, purple-mauve. As in the experiment with Silver nitrate, we notice at the top a broad band into which the gold colours have not penetrated. It is slightly yellow. The border line itself describes an even wider curve than in the previous experiments mentioned; its colour is pale green, indicating Copper sulphate. This experiment we would describe as uninspiring.