| 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.
[51] See Appendix, [Note G], as to formation rock under the temple.
[52] See Frontispiece.
[53] Several independent astronomical calculations point to the age of the Elliptical Temple being from 1100 to 1300 years b.c.
[54] This has been now found by the author. It had been removed in 1892 by relic hunters.
[55] Report on the examination and analysis of No. 1 sample of minerals:—
This was a piece of metamorphic slate, such as may be found in the vicinity of the contact-zone of clay slate and granite or other crystalline rock. Its composition does not present any peculiar features.
P. Daniel Hahn, ph.d., m.a.
Professor of Chemistry, South African College
Chemical and Metallurgical Laboratory.
[56] Two rounded buttresses are built on the larger buttress, and are against the summit of this wall.
[57] Discovered 1902.