SPIRIT COLOURS.

635

No. 24. Scarlet. —

Cochineal liquor (strong).. 3 gals.

Starch. 2 lbs.

Boil and add—

Berry liquor, at 15°. 5 02s.

Fustic liquor, at 15° ., 4 „

Binoxalate of potash. 14 ,,

Tin crystals. 2J ,,

Perchloride of tin, at ioo° Tw. .. .. .. .. 10.J „

No. 25. Yellow. —■

Bark liquor, at 16 0 Tw. 3 gals.

Alum .. 4 lb.

Tin crystals. 3 ozs.

Oxalic acid. 3 ,,

Gum Senegal . 9 lbs.

No. 26. Yellow. —

Berry liquor, at 12° Tw. 1 gal.

Alum . 4 lb.

Tin crystals. ozs.

Gum . 3 lbs.

No. 27. Yellow. —

Water. 1 gal.

Turmeric . lbs.

Berries. ij j,

Boil down to 2 quarts, and add—

Tin crystals.. .. •• . 202s.

Alum. i lb.

Gum, according to shade, about. 1 lb.

Ninth Style.—Spirit Colours. (Application Colours.)

Spirit colours are very brilliant, but not permanent. They derive theirname from the large proportion of “ spirits,” a technical name for acid solutionsof tin, which enters into their composition. Steaming is impradticable owingto the great acidity of the mixtures; the printed pieces consequently are driedat a gentle heat, exposed in the ageing room for a few hours, rinsed, washed

in cold water, and finally dried.

No. 1. Black .—■

Logwood liquor, at 8° Tw. 1 gal.

Water . 1 ,,

Copperas .10 ozs.

Starch. 3 lbs.

Boil and add—

Nitrate of iron, at 8o J Tw. 1 gill.

No. 2. Blue .-—

Water . 1 gal.

Starch . li lbs.