Take 1 gallon of water; dissolve in it,

44 ounces of binarseniate of potash, and
12 ounces of corrosive sublimate; thicken with
3 libs. of gum,
6 libs. of pipe-clay,
16 oz. of oil.

To explain fully the manipulation of the lazulite style, we shall suppose that the calicoes are printed with the following reserves, taken in their order:—

  1. Black reserve, No. 1. above.
  2. Full red reserve, No. 3.
  3. Light red reserve, No. 4.
  4. Neutral reserve, No. 7.

Four days after printing-on these reserves, the goods must be twice dipped in the blue vat, ten minutes in and ten minutes out each time; but more dips may be given according to the desired depth of shade. The cloth must be afterwards rinsed in running water for half an hour. The next process is to remove the paste; which is done by wincing the goods in a bran bath, lowered to 150°, during twenty minutes. They are then winced for five minutes in a bath of water slightly sharpened with vinegar. When well cleansed, they are ready for the madder bath. The lapis goods are finally cleared in a bran bath, by exposure on the grass, and a soap boil.

The lazulite style is susceptible of many modifications.

8. Deep blue ground, with light blue, carmelite, and white figures.

  1. Print-on the white reserve, No. 1.
  2. Dip in the strongest blue vat; rinse and dry.
  3. Ground-in with the block, the carmelite reserve (containing the mixed acetates of iron and alumina.)
  4. Ground-in the neutral reserve.
  5. Dip for the light blue; rinse.
  6. Dung, dye, and clear, as above.

By varying the proportions of the reserve mordants, and the dye stuffs, as madder, quercitron, &c. a great variety of effects may be produced.

9. Deep green ground, with buff and white figures.