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610 DYEING AND CALICO PRINTING.

No. 40. Purple, Ordinary .—

Logwood liquor, at 10° Tw. 6 gals.

Red liquor, at 18° Tw. .... . 6 „

In which latter dissolve separately —

Carbonate of soda, crystals . ij lbs.

Oxalic acid . 3 ,,

When all is dissolved add—

Gum Senegal, in powder .36 lbs.

No. 41. Purple, Deep .—

Logwood liquor, at 16° Tw. 1 gal.

Red liquor, at 20° Tw. 1 ,,

Soda crystals . 4 ozs.

Red prussiate. J lb.

Oxalic acid. . .. .. £ ,,

Gum Senegal . .. .. .. .. 6$ lbs.

No. 42. Red, Dark (for Cylinder ).—

Sapan liquor, at 12° Tw. .. .. . 2 gals.

Bark liquor, at 8° Tw. J gal.

Nitrate of alumina . J „

Chlorate of potash . 4 ozs.

Alum . 12 „

Starch . 6J „

Gum substitute . 1 lb.

No. 43. Red .—

Sapan liquor, at io° Tw. 4 gals.

Bark liquor, at 18° Tw. ij quarts

Red liquor, at 20° Tw. i) „

Alum . 2i lbs.

Chloride of copper (crystals) . i2j ozs.

No. 44. Red .—

Sapan liquor, at 8° Tw. 2 gals.

Bark liquor, at 12 0 Tw. i£ quarts

Nitrate of alumina . ij „

Alum .. ij lbs.

Chlorate of potash . 2i ozs.

Starch. 3f lbs.

No. 44 a. Corallin Red .—

Corallin.100 grms.

Alcohol.400 ,,

Dissolve; and add— •

Solution of casein .. .. .. .... .. 2250 grms.

To prepare this solution take—

Casein.100 grms.

Water .300 ,,

Ammonia .20 ,,

Others add oxide of zinc to the above mixture, or mix intimately the alcoholicsolution of corallin with oxide of zinc, and thicken with albumen. Or the

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