Procure some first-class red marl, add water, and, by passing through a fine lawn, make it into a slip, and dip the ware therein.

When fired use the following:

Glaze

Stone............ 60 parts

Flint............. 30 parts

Paris white....... 7.5 parts

Red lead.........140 parts

One part mazarine blue stain to 10 parts glaze

Mazarine Blue Stain

Oxide of cobalt.....   10 parts

Paris white........ 9 parts

Sulphate barytes........... 1 part

Calcine.

Another Process Body

Ball clay...........   16 parts

China clay.........   12 parts

Flint clay..........     9 parts

Stone clay.........     6 parts

Black stain........     7 parts

Glaze

Litharge...........   70 parts

Paris white........     3 parts

Flint..............   12 parts

Stone.............   30 parts

Black stain........   20 parts

Black Stain

Chromate of iron...   12 parts

Oxide of nickel.....     2 parts

Oxide of tin........     2 parts

Carbonate of cobalt.     5 parts

Oxide of manganese.     2 parts

Calcine and grind.

Blue Stains

I

Oxide of cobalt.....     2.5 parts

Oxide of zinc.......     7.5 parts

Stone..............     7.5 parts

Fire this very hard.

II

Zinc..............     6 pounds

Flint..............     4 pounds

China clay.........     4 pounds

Oxide of cobalt.....     5 ounces

Hard fire.

III

Whiting...........     3.75 parts

Flint..............     3.75 parts

Oxide of cobalt.....     2.5 parts

Glost fire.

Turquoise Stain

Prepared cobalt.... 1.5 parts

Oxide of zinc....... 6 parts

China clay......... 6 parts

Carbonate of soda .. 1 part

Hard fire.