Page.
Introduction 3
Disposal of sewage 5
Night soil 7
The privy 7
The cesspool 7
The dry-earth closet 8
The water-closet 11
Liquid sewage 11
Vaults 11
Irrigation 12
Kitchen and chamber slops 14
Waste and garbage 15
Protection of drinking water 16
Ways of contamination 17
Construction of wells 18
Conclusion 19