COLOURS ON WOOLLENS .

99

Slate.

For ioo lbs. of wool. Prepare a bath with 2 lbs. of tartar, 2 lbs. of sumach,3 lbs. of logwood, and 2 lbs. of cudbear. Enter the wool at 180° F., and boilslowly for one hour. Darken with a solution of 3 lbs. of copperas. Aftertwenty minutes remove, air, and rinse.

Purple Slate.

For 100 lbs. of wool. Prepare a bath with 2 lbs. of tartar, 3 lbs. of sumach,i£ lbs. of logwood, and a hot alcoholic solution of 2 ozs. of aniline purple.Enter the wool at 180° F., and boil slowly for one hour. Darken with 2 lbs.of copperas. Handle, cool, rinse, and dry.

Stone Colour.

For 100 lbs. of wool. Prepare a bath with 2 lbs. of tartar, 4 lbs. of sumach,1 lb. of logwood, 5 lbs. of fustic, and 2 lbs. of madder. Boil the wool slowlyfor one hour; darken with 3 lbs. of copperas.

Silver Grey.

For 100 lbs. of wool. Prepare a bath with 1 lb. of crude tartar, £ lb. ofnut-galls, f lb. of cudbear, and $ lb. of logwood. Enter the wool at 180 0 F.,handling well. Then increase the temperature to 200° F. for one hour; cooland darken with copperas. When even, remove, air, and rinse.

Lavender.

For 50 lbs. of fabric (thibets or zephyr). Prepare a bath, at a temperatureof 180 0 , with 5 lbs. of alum, 5 lbs. of cream of tartar, 6 ozs. of indigo-extradt,6 ozs. of cochineal paste. Enter the cloth and boil until even. If thethibets are of mixed silk, the silk will remain uncoloured; it may be dyed redby substituting cudbear or orchil for the cochineal paste; or the wool may becoloured mode and the silk a golden yellow by employing cudbear andturmeric instead of fustic and cochineal. Sulphuric acid instead of tartar,cudbear or orchil instead of cochineal paste, are more economical in the caseof coarser goods without silk.

PURPLES.

Aniline Purple.

For 100 lbs. of wool. Dissolve 12 ozs. of Perkin’s purple in 1 quart of hotalcohol, straining the solution through a flannel sieve. Add 4 lbs. of aceticacid, 4 lbs. of alum, and 1 lb. of tartar. Enter the wool at 175 0 F., and afterhandling, bring the bath to a boil for one hour. Should a blue shade bedesired, add 3 lbs* of diluted sulphuric acid; if a red shade, the followingmethod is to be preferred12 ozs. of Perkin’s purple, dissolved and strainedas before (Hofmann’s purple does not require alcohol). Add separately 2 ozs.of magenta and 4 lbs. of acetic acid. Enter "at 170° F., handling quickly atfirst.

BLACKS.

Chrome Black.

For 100 lbs. of wool or fabric. Dissolve 2\ lbs. of bichromate of potashand 2 lbs. of argol. Boil the fabric or wool in this solution for one hour,Cool and rinse.

H 2