Note 50 — Chapter IX · THE ELLIPTICAL TEMPLE
Reading edition
Report on the examination and analysis of No. 2 Sample of mineral.—This was a sample of powdery, earthy mineral. One-half of it has been assayed with the view to the presence of gold, and was found to contain 1½ dwts. of gold per ton. The other portion has been analysed as to its chemical composition, which was found to be as follows:
Silica 73·18 %
Oxide of Iron 17·83 〃
Alumina 8·98 〃
Lime Trace.
This powdery earth is most probably formed through the disintegration of the slag and furnace ashes, which make an excellent foundation for the floor of a large building. On exposure to the action of the weather it crumbles to powder. P. Daniel Hahn, ph.d, m.a., Professor of Chemistry.