Originally Posted by sbattert
sepia toner sounds less poisonous than ferocyaninde or whatever farmers reducer.
Farmer's reducer contains potassium ferrIcyanide not ferrOcyanide. The two chemicals are different. Again it is not considered dangerous.
A rock pile ceases to be a rock pile the moment a single man contemplates it, bearing within him the image of a cathedral.
~Antoine de Saint-Exupery