Part 107

Grind only.

«Green Glaze, Best.»—

III.—Stone 80 parts Flint 8 parts Soda crystals 4 parts Borax 3 1⁠/⁠2 parts Niter 2 parts Whiting 2 parts Oxide of cobalt 1⁠/⁠4 part

Glost fire, then take:

Above frit 60 parts Red lead 57 parts Calcined oxide of copper 5 1⁠/⁠4 parts

«Black.»—

Red lead 24 parts Raddle 4 parts Manganese 4 parts Flint 2 parts Oxide of cobalt 2 parts Carbonate of cobalt 2 parts

Glost fire.

«WHITE GLAZES:»

«China.»—Frit:

I.—Stone 6 parts Niter 2 parts Borax 12 parts Flint 4 parts Pearl ash 2 parts

To mill:

Frit 24 parts Stone 15 1⁠/⁠2 parts Flint 6 1⁠/⁠2 parts White lead 31 parts

{170}

II.—Frit:

Stone 24 parts Borax 53 parts Lynn sand 40 parts Feldspar 32 parts Paris white 16 parts

To mill:

Frit 90 parts Stone 30 parts White lead 90 parts Flint 4 parts Glass 2 parts

III.—Frit:

Stone 50 parts Borax 40 parts Flint 30 parts Flint glass 30 parts Pearl barytes 10 parts

To mill:

Frit 160 parts Red lead 30 parts Enamel blue 1⁠/⁠2 part Flint glass 2 parts

IV.—Frit:

Borax 100 parts China clay 55 parts Whiting 60 parts Feldspar 75 parts

To mill:

Frit 200 parts China clay 16 parts White clay 3 1⁠/⁠2 parts Stone 3 parts Flint 2 parts

V.—Frit:

Stone 40 parts Flint 25 parts Niter 10 parts Borax 20 parts White lead 10 parts Flint glass 40 parts