SODIUM AND ITS COMPOUNDS.

Order of derivation.--Occurrence and preparation of sodium
chloride; uses.--Sodium sulphate: manufacture and uses. --Sodium
carbonate: occurrence, manufacture, and uses.-- Sodium:
preparation and uses.--Sodium hydrate: preparation and use.--
Hydrogen sodium carbonate.--Sodium nitrate

CHAPTER XLV.

POTASSIUM AND AMMONIUM.

Occurrence and preparation of potassium.--Potassium chlorate and
cyanide.--Gunpowder.--Ammonium compounds

CHAPTER XLVI.

CALCIUM COMPOUNDS.

Calcium carbonate.--Lime and its uses.--Hard water.--Formation of
caves.--Calcium sulphate

CHAPTER XLVII.

MAGNESIUM, ALUMINIUM, AND ZINC.

Occurrence and preparation of magnesium.--Compounds of aluminium:
reduction; properties, and uses.--Compounds, uses, and reduction
of zinc CHAPTER XLVIII.