ILLUSTRATIONS.
George A. (George Augustus) Auden translation
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