| 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 |
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