href="@public@vhost@g@gutenberg@html@files@38067@[email protected]#id_12" class="pginternal" tag="{http://www.w3.org/1999/xhtml}a">22
| 13. |
To make good shining black ink, |
23 |
| 14. |
Blue ink, |
23 |
| 15. |
Red ink, |
24 |
| 16. |
Yellow ink, |
24 |
| 17. |
Green ink, |
25 |
| 18. |
Purple ink, |
25 |
| 19. |
To write in various colours with the same pen, ink and paper. |
25 |
| 20-26. |
Sympathetic inks for secret correspondence, |
27 |
| 27. |
Luminous ink that will shine in the dark, |
28 |
| 28. |
To make a writing appear and disappear at pleasure, |
29 |
| 29. |
To make a writing vanish and another appear in its place, |
29 |
| 30. |
To restore old writing that is nearly defaced, |
30 |
| 31. |
To paint a picture that will appear and disappear |
30 |
| 32. |
Landscape painting on walls of rooms, |
31 |
| 33. |
To paint in figures for carpets or borders, |
34 |
| 34. |
To paint in imitation of mahogany and maple, |
35 |
| 35. |
The art of painting on glass, |
36 |
| 36. |
Best method of polishing steel, |
37 |
| 37. |
To make letters of blue on polished steel, |
38 |
| 38. |
To preserve the brightness of polished steel, |
39 |
| 39. |
To give steel a temper to cut marble, |
40 |
| 40. |
To wash iron or steel with copper, |
41 |
| 41. |
To give iron the whiteness of silver, |
42 |
| 42. |
To wash iron with tin, |
42 |
| 43. |
To give tin the whiteness and brilliancy of silver, |
44 |
| 44. |
To crystallize tin, |
44 |
| 45. |
To make a gold coloured varnish for tin, |
45 |
| 46. |
To make shellac varnish for japanning, |
46 |
| 47. |
To make the best copal varnish, |
47 |
| 48. |
To make a spirit varnish for maps, |
48 |
| 49. |
To make elastic varnish for umbrellas, |
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