Greens may be obtained by dyeing with any of the yellow dyes and blueing in the Indigo Vat or with Indigo Extract. If the colour is thin, it should be dyed a deeper blue in the vat and then re-dyed with yellow. A strong clear yellow is needed for a good green. (7) PURPLE Dye silk blue in Indigo Vat. Then dye without mordanting in Cudbear. (8) ORANGE (1 lb.) Mordant with Alum Acetate. Dye with 1/2 lb. Madder, 2 ozs. Flavin and 1 oz. tin. Enter the tin first in a cold bath. Mix Flavin and Madder into a paste and add to the bath. Bring to the boil slowly, boil for 10 minutes. Wash in soap. (9) BLACK (1 lb.) Mordant with Alum Acetate. Dye with 6 ozs. logwood, 3/4 oz. flavin, 1 oz. Iron. Mix all together and boil for 1/2 hour. Wash thoroughly. (10) BLACK (1) Mordant with basic ferric sulphate and after allowing the silk to lie for some time, wash well and soap at 90 deg.C. (2) Dye with 50 per cent Fustic, 10 per cent Ferrous Sulphate and 2 per cent Copper Acetate. (3) Dye with logwood 50 per cent and soap. (11) GREY WITH BRACKEN (1 lb.) Mordant with 1 oz. Iron and 2 ozs. Cream of Tartar. Boil a quantity of young bracken tips for 1/2 hour. Strain. Boil silk in the decoction for about an hour. (12) BROWN WITH LICHEN (1 lb.) Mordant with Alum Acetate. Put into the dye bath the quantity of lichen according to required colour with about a teaspoonful of Acetic Acid. Boil from 1 to 3 hours. (13) ORANGE (1 lb.) 1 oz. tin, 1/2 oz. Oxalic Acid, 2 oz. Flavin. Enter silk and boil for 1 hour. Remove silk and add to the bath 1 oz. tin, 1 oz. Oxalic, 2 oz. Cochineal. Boil for 1 hour or more. (14) BLACK (1 lb.) Mordant with 2 oz. logwood extract, 1-1/4 oz. fustic extract, 1-1/4 oz. iron, 1/2 oz. copper sulphate. Boil for 1 hour. Take out and rinse. To the same bath add 1-3/4 oz. logwood extract, 1 oz. fustic extract, 7 oz. madder. Enter silk and boil for 1 hour. Wash in soap. (15) YELLOW (1 lb.) Mordant with 1 oz. Bichromate of Potash. Boil 1 hour. In a separate bath put 1 lb. weld and boil for 1 hour. (16) RED (1 lb.) Mordant with 1-3/4 oz. tin and 1-3/4 oz. oxalic acid. Boil for 1 hour. Then add 3/4 lb. cochineal and 6 oz. madder. Boil well and wash in soap. (17) BROWN (1 lb.) Mordant with 1 oz. Copper sulphate. Boil for 1 hour. Take out silk and add 2-1/2 oz. madder, 1 oz. fustic chips, and boil for 1 hour. (18) RED (1 lb.) Dissolve 1 oz. Tannic Acid in hot water. Enter silk and leave for 24 hours, stirring occasionally. Rinse well in two waters. In a fresh bath, put 4 oz. cochineal. Enter silk. Bring to boil and let blue colour develop. Lift, and add 1 oz. cochineal & 1 oz. tin. Re-enter silk & boil well. Wash in soap. GLOSSARY _Adjective Dyes._ Dyes which require mordant. _Alizarin._ The chief colouring principle of madder. It is also the name for an extensive series of chemical colours produced from anthracene, one of the coal tar hydrocarbons discovered in 1868.