tion of milk. Laws governing quarantine 410-425

LIST OF FIGURES

FIG. PAGE
1. Map of New York State 5
2. Bad conditions about a dwelling 28
3. Grading that turns water away from the house 42
4. Modes of laying out drains 46
5. Exterior wall-drains 50
6. Interior cellar-drains 51
7. Wall modes of making air-space 53
8. Water-tight wall 54
9. Rough-backed wall 56
10. Even-backed wall 56
11. Modes of making water-proof cellar walls 57
12. Water-proofing of cellar walls 58
13. Cellar-wall forms 65
14. Letting in fresh air 78
15. Ventilating device 79
16. Ventilating device 80
17. Ventilation by means of coal stove 82
18. Coal-stove ventilation 83
19. Coal-stove ventilation 84
20. Outlets into walls 86
21. Cow-barn ventilation 88
22. How a pump works 105
23. Air-lift pump 106
24. Diagram of a spring 109
25. Water finding its way from a hillside 110
26. The sinking of wells 110
27. Mode of sinking a well 114
28. A well that will catch surface water 115
29. A well properly protected 116
30. A properly protected well 117
31. Well-drilling apparatus 118
32. Sinking a well by means of a water-jet 120
33. An enclosed spring 122
34. A spring extension 123
35. A reservoir for home use 126
36. Stream draining a privy 129
37. Contamination of a creamery from the water supply