Preparation and properties.--Potassium hydrate and calcium
hydrate

CHAPTER XXII

OXIDES OF NITROGEN.

Nitrogen monoxide, dioxide, trioxide, tetroaide, pentoxide.

CHAPTER XXIII.

LAWS OF DEFINITE AND OF MULTIPLE PROPORTION, and their
application

CHAPTER XXIV.

CARBON PROTOXIDE and water gas.

CHAPTER XXV.

CARBON DIOXIDE.

Preparation and tests.--Oxidation in the human system.--Oxidation
in water.--Deoxidation in plants

CHAPTER XXVI.

OZONE.