COLOURING LINEN YARN FOR CARPETS.

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impregnating the yarn. Then pass it into a warm beck (140° F.) containingthe boiled liquor of 15 lbs. of peachwood. After twenty minutes rinse and dry.

Pensee Brown.

For 50 lbs. of dried yarn. To a kettle of water at 140° F. add—

5 lbs. of alum,

10 pails of logwood liquor (2 lbs. to the pail),

5 lbs. of nitrate of tin.

The yarn must be handled for twenty minutes, rinsed, and dried. To renderthe colour more even the yarn may be taken through the alum and logwoodliquor first, then removed, the nitrate of tin added, and the yarn re-enteredand finished.

Magenta.

For 50 lbs. of well-rinsed yarn. Dissolve i£ ozs. of magenta crystals inhot water, and add the solution to a warm beck at about 150° F. The yarnshould be entered and handled thoroughly for twenty minutes, the beck beingwell stirred. Switch and dry without rinsing.

Aniline Purple.

For 50 lbs. of well-rinsed bleached yarn. Dissolve 2 ozs. of anilinepurple in 1 pint of hot alcohol, and add the alcoholic solution to a bath ofwarm water at 140° F., next adding 4 lbs. of acetic acid. Handle the yarn inthis beck until the colour has become even ; rinse and dry.

Aniline Blue.

For 50 lbs. of bleached yarn. Dissolve 4 ozs. of aniline blue powder in1 pint of hot alcohol, adding the solution to a kettle of warm water at 140° F.,together with the solution of 3 lbs. of Glauber salts, and 2 lbs. of acetic acid.The kettle must be heated to nearly the boiling-point while handling theyarn. After twenty minutes remove, rinse, and dry.

Prussian Blue.

For 50 lbs. of bleached yarn. A beck, slightly warm, must be prepared with3 lbs. of nitrate of iron,* to which should be added 2 lbs. of muriate of tin.The yarn having been turned five times in this iron bath, should be removedand passed through a second bath, consisting of the solution of 2 lbs. ofyellow prussiate of potash with 1 lb. of sulphuric acid. After draining for afew minutes, pass the yarn again through the iron bath. If the colour bedesired darker, handle once more through the prussiate bath. Then rinsewell, and dry.

Lilac.

For 50 lbs. of bleached yarn. Have in readiness 2 pails of a warm infusion°f logwood, to which add 4 lbs. of alum and 2 lbs. of muriate of tin. Handlethe yarn for twenty minutes, remove, and rinse.

Nitrate of iron maybe prepared as follows:—To 5 lbs. of water in a stone vessel adds. of hydrochloric acid (22 0 B.), and 10 lbs. of nitric acid (36° B.) In this acid solutionwrought-iron chips are dissolved, care being taken not to add iron in excess. When sufficient

on as been dissolved, or the acid is nearly saturated, 5 lbs. of copperas are to be added.en th e copperas is dissolved the mordant is ready for use.