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LIST OF TABLES.

TABLE

1. Thickness of walls (The Metropolitan Buildings Act) 2. Thickness of walls (The Metropolitan Buildings Act) 3. Space allowed per inmate in workhouses

4. Oxygen, nitrogen, and carbonic acid in normal and expired air (Foster)

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5. Amount of pure air required per hour for a man and a candle
(Angus Smith)
6. Quantity of air required per hour for one person to maintain
given proportions of carbonic acid (Angus Smith)..

7. The same (Angus Smith)

8. Weight of a cubic foot of vapour at different temperatures ; the air being saturated

9. Mortality to density of population (Gairdner)

10. State of mortality in the eleven divisions (Registrar-General) 11. Rate of mortality in town and country districts in the ten years 1859 to 1869 (Registrar-General)

PAGE

29

32

48

49

50

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51

52

54

73

73

74

12. Population, mortality, temperature, and rainfall in eleven chief towns of England, 1869 (Registrar-General) . .

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13. Chief elements in our best drinking water

14. Acidity, ammonia, and albumenised ammonia in rain water (Angus Smith)

16, 16A. Mineral matters in deep wells and springs

115

117

118

118

17. Mineral matters in great gathering grounds

119

119

120

18. Mineral matters in rivers

19. Mineral matters in polluted sources

20. Organic carbon and organic nitrogen in the best drinking

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21. Organic carbon and organic nitrogen in polluted water..

22. Amount of nitrogen and nitric acid corresponding to different

amounts of ammonia (Wanklyn)

23. Chlorine in good drinking water

122

122

128

131

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