Hectograph Inks
II.—Blue.—Resorcin blue M, 10 parts.
Dissolve by means of heat in a mixture of:
| Dilute acetic acid | 1 part |
| Distilled water | 85 parts |
| Glycerine | 4 parts |
| Alcohol, 90 per cent | 10 parts |
III.—Green.—Aniline green, water solution, 15 parts; glycerine, 10 parts; Water, 50 parts; alcohol, 10 parts.
Paste Ink To Write With Water.
II.—Red.—Take 1 part of red aniline mixed with 10 parts of acetic acid; 5 parts of citric acid, and 25 parts of mucilage, all well mixed. For use, mix 1 part of the paste with 16 parts of water.
III.—Blue.—Take 2 parts of aniline blue mixed with 10 parts of acetic acid; 5 parts of citric acid, and 40 parts of mucilage, all well mixed. For use, mix 1 part of the paste with 8 parts of water.
IV.—Violet.—Use the same ingredients in the same proportions as blue, with the difference that violet aniline is used instead of blue aniline.
V.—Green.—Take 1 part of aniline blue; 3 parts of picric acid, mixed with 10 parts of acetic acid; 3 parts of citric acid, and 80 parts of mucilage. For use, 1 part of this paste is mixed with 8 parts of water.