"Polysynthetic" Quotes from Famous Books
... metallic sulphides. In the presence of this difficulty, do one of two things; either utilise or neutralise. In certain cases, I recommend the former. Sometime since I was treating, for gold extraction, material from a mine which was very complex in character, and for which I coined the term "polysynthetic." This contained about half a dozen different sulphides. The upper parts of the lode being partially oxidised, free sulphuric acid (H2SO4) was evolved. I therefore, following out a former discovery, added a little metallic zinc to the mercury in the boxes and on the plates with ... — Getting Gold • J. C. F. Johnson |