Dissolve 50 lbs. of dark turmeric and 45 lbs. of logwood extract and make up to 300 gallons of solution, at 95° F. Enter the killed skins and leave them in the liquor until they rise to the surface. Then take them out and add 25 lbs. of logwood extract, 10 lbs. of sumach, 10 lbs. of blue vitriol, 5 lbs. of fustic extract, and about 60 lbs. of iron acetate liquor. Stir up well, and immerse the skins for 18 hours. Draw them up, and expose to the air for 12 hours. Heat the liquor again to 95° F. and put the skins back for 12 hours. Draw out, hang up in the air for a time, then wash thoroughly, hydro-extract, dry and finish. In a German patent, D. R. P. 107,717 (1898), is described a method for dyeing lambs black, consisting in treating the skins for 24 hours in a logwood bath, then rinsing in cold water, and mordanting for 15 hours in a solution of bichromate of potash. The skins are then washed and treated with a solution of iron salt, then dried. This process, while of not much practical importance, is an illustration of mordanting subsequent to the dyeing treatment. 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. CHAPTER XIV FUR DYEING ANILINE BLACK