As far as the production of other shades is concerned, the procedure is quite similar to the regular black method. For a dark brown, for example, the skins are dyed in a mixture containing
| Gall-nuts | 40 | parts |
| Verdigris | 10 | „ |
| Alum | 10 | „ |
| Copperas | 5 | „ |
| Brazilwood extract (15° Twaddell) | 150 | „ |
| Water | 1000 | „ |
employing operations just as in the case of the black.
Greyish-blue shades on white hares, lambs, kids, etc., can be obtained by treating the skins successively in the following baths:
| 1. | Logwood extract | 100 | grams |
| Water | 1 | liter | |
| 2. | Indigotine | 10 | grams |
| Alum | 10 | grams | |
| Water | 1 | liter |
Bluish-grey tones on the same furs can be produced by treating with
| 1. | Logwood extract | 200 | grams |
| Indigotine | 15 | grams | |
| Water | 1 | liter | |
| 2. | Alum | 150 | grams |
| Salammoniac | 12 | grams | |
| Water | 1 | liter |
Similar grey shades can be produced by mordanting the skins with an iron salt, and then dyeing in a weak bath containing gall-nuts, sumach and iron vitriol. This method is very effective for making Alaska or silver fox imitations.