The Cullinan Diamond, from a photograph by the Author
(see pp. 76–79) | Frontispiece |
| FIG. | FACING PAGE |
| 1. River Washings at Klipdam | | 10 |
| 2. Plan of the Kimberley Diamond Mines | | 10 |
| 3. Kimberley Mine. The “Pipe” | | 18 |
| 4. Section of Kimberley Mine | | 18 |
| 5. Wesselton Diamond Mine. Open Workings | | 34 |
| 6. De Beers Compound | | 40 |
| 7. De Beers Mine. Underground Workings | | 40 |
| 8. De Beers Washing and Concentrating Machinery | | 48 |
| 9. Sorting Concentrates for Diamonds. De Beers | | 54 |
| 10. De Beers Diamond Office. 25,000 carats | | 72 |
| 11. De Beers Diamond Office. The Valuators’ Table | | 72 |
| 12. A group of large Diamond Crystals | | 76 |
| 13. Some Historic Diamonds | | 80 |
| 14. Crystalline forms of native Diamonds | | 86 |
| 15. Triangular Markings on natural face of a Diamond Crystal | | 88 |
| 16. Triangular Markings artificially produced on a Diamond Crystal | | 88 |
| 17. Diamond-cut Glass and Shavings | | 98 |
| 18. Diamonds in RÖntgen Rays. A. Black Diamond in gold frame. B. Pink Delhi Diamond. C. Paste Imitation of B. | | 98 |
| 19. Curve of Vapour Pressure of Carbon | page 113 |
| 20. Moissan’s Electric Furnace | | 116 |
| 21. Artificial Diamond made by the Author from molten iron | | 120 |
| 22. Moissan’s Artificial Diamonds | | 120 |
| 23. Diamonds from Canyon Diablo Meteorite | | 138 |
