Elements of the Art of Assaying Metals
Cramer, John Andrew Excerpt from Elements of the Art of Assaying Metals: In Two Parts, The First Containing the Theory, the Second, the Practice of the Said Art, The Whole Deduced From the True Properties and Nature of Fossils, Confirmed by the Most Accurate and Unquestionable Experiments, Explained in a Natural OrderCalx Cafir 445 Mmtrals, proper, lngot, an, 72. Improper, Iron melted With Pit - Coal, 347 accidental, I Lapis Lazuli 157 Sandwer.About the Publisher...