Blue violet.
| By weight | |
|---|---|
| Methylene blue | 5 parts |
| Tetraethyldiamidooxytriphenyl carbinol | 2 parts |
| Or: | |
| Methyl violet | 5 parts |
| Alcohol | 200 parts |
| Water, distilled | 300 parts |
Green.
| By weight | |
|---|---|
| Malachite green | 10 parts |
| Alcohol | 200 parts |
| Water, distilled | 300 parts |
{549}
Yellow.
| By weight | |
|---|---|
| Acridin yellow N. O. | 10 parts |
| Alcohol | 200 parts |
| Water, distilled | 300 parts |
Red.
| By weight | |
|---|---|
| Congo rubin | 10 parts |
| Alcohol | 200 parts |
| Water, distilled | 300 parts |
B.—Dyes (Stock Solutions).—