BROMINE.

Preparation.--Tests.--Description.--Uses

CHAPTER XXXII.

IODINE.

Preparation.--Tests.--Iodo-starch paper.--Occurrence.--Uses.--
Fluorine

CHAPTER XXXIII.

THE HALOGENS.

Comparison.--Acids, oxides, and salts

CHAPTER XXXIV.

VAPOR DENSITY AND MOLECULAR WEIGHT.

Gaseous weights and volumes.--Vapor density defined.--Vapor
density of oxygen

CHAPTER XXXV.

ATOMIC WEIGHT.

Definition.--Atomic weight of oxygen.--Molecular symbols.--