13. The principal varieties and sources of other white pigments are the following:

Antimony white, from antimonious oxide.

Body white, from levigated flake white.

Cadmium white, from cadmium carbonate or hydrated oxide.

Chinese "white, from a zinc oxide.

Constant white, from barium sulphate.

Derbyshire white, from ground baryta or heavy spar.

Dutch white, from barium sulphate 3/4, white lead 1/4.

Flake white, an English white lead, in. the form of flakes or scales, from which it derives its name, is oxidized carbonate of lead, not essentially differing from the last mentioned. Other white leads seldom equal it in body; when levigated, or ground smooth, it is called "body white." Flake white ranks next in body or density to white lead, and is employed in the better class of work, where great purity of tone is required.

Flemish white is an artificial lead sulphate.

Hamburg white, composed of § of barium sulphate and 1/3 of white lead.

Kremnitz white, from lead carbonate and hydrated oxide.

Kremser white is a pure white lead.

Newcastle white is a white lead made with molasses vinegar.

Pattison's white, a mixture of lead chloride and oxide.

Pearl white, bismuthous oxychloride.

Satin white, aluminum and calcium sulphate.

Tin white, hydrated tin oxide.

Tungsten white, barium tungstate.

Venice white is a mixture composed of barium sulphate and white lead in equal parts.

Zinc white is hydrated zinc carbonate or oxide. It is perfectly durable in oil and water, but unfortunately wanting in body, which renders it less useful to the house painter, who is more restricted as to the thickness and number of coats he applies, than is the artist, who, in this respect, enjoys greater latitude. In house painting the use of zinc white is, therefore, resorted to only where extreme delicacy of treatment is demanded.