| FIG. | | | | PAGE |
| 1. | | Limestone block with well-preserved surface | | 3 |
| 2. | | Limestone block with pitted surface | | 3 |
| 3. | | Limestone block showing destruction of surface | | 4 |
| 4. | | Potsherd showing saline efflorescence | | 5 |
| 5. | | Pottery showing sodium nitrate efflorescence | | 6 |
| 6. | | Portion of horse-trappings showing blue and green patina | | 35 |
| 7. | | Head of Osiris showing advanced condition of warty patina | | 38 |
| 8. | | Etruscan mirror showing warty patina | | 40 |
| 9. | | Bronze figure showing destructive patina | | 42 |
| 10. | | | 43 |
| |
| 11. | | The same after treatment (Finkener’s method) | | 44 |
| 12. | | | 45 |
| 13. | | Gay-Lussac’s burette | | 62 |
| 14. | | Air-pump fixed to water-tap | | 68 |
| 15. | | Apparatus for impregnation by extraction of air | | 69 |
| 16. | | Assyrian clay tablet showing incrustation | | 79 |
| 17. | | The same after treatment | | 79 |
| |
| 18. | |
| 19. | | Assyrian clay tablet before and after treatment | | 80 |
| 20. | |
| 21. | |
| |
| 22. | | Babylonian clay cone before and after treatment | | 82 |
| 23. | | | 83 |
| 24. | | Water-bath for iron objects | | 94 |
| 25. | | Iron sword treated by Blell’s method | | 108 |
| 26. | | Iron spear-head treated by Blell’s method | | 109 | |
| 27. | | Iron fibula treated by Blell’s method | | 109 |
| 28. | | Application of Krefting’s method | | 111 |
| 29. | | Iron spear-head treated by Krefting’s method | | 112 |
| 30. | | Iron pin before and after treatment by Krefting’s method | | 113 |
| 31. | |
| |
| 32. | | Iron object before and after treatment by Krefting’s method | | 114 |
| 33. | |
| 34. | | Piece of iron sword-blade with inscription revealed by Krefting’s method | | 116 |
| 35. | | Iron sheath after treatment by combination of Blell’s and Krefting’s method | | 117 |
| 36. | | Hammer-heads for removal of bronze incrustations | | 120 |
| 37. | | Osiris showing cracking and destructive patina | | 123 |
| 38. | | Boeotian bridle showing cracked patina | | 124 |
| 39. | | Bronze bull showing warty patina | | 132 |
| 40. | | The same after reduction by Finkener’s method | | 133 |
| 41. | | Bronze axe-blade before treatment by Finkener’s method | | 134 |
| 42. | | The same after treatment by Finkener’s method | | 135 |
| 43. | | Reverse side of same after treatment | | 136 |
| 44. | | Dagger-sheath before treatment by Finkener’s method | | 137 |
| 45. | | Dagger-sheath after treatment, showing design | | 137 |
| 46. | | Roman coins before treatment by Krefting’s method | | 142 |
| 47. | | Roman coins after treatment by Krefting’s method | | 143 |
| 48. | | Method of mounting objects in air-tight damp-proof cases | | 145 |
