32. Q. What are some of the essential means of cleanliness of habitations? A. Through-and-through ventilation, sunlight, the hot scrubbing of wood floors, and the wiping and dusting of walls.
33. Q. What is said of the putrescence of refuse materials used for food? A. It is not only excessively offensive, but may be the cause of sudden and even fatal sickness.
34. Q. How has many a valuable life been lost and many a family prostrated by sudden sickness? A. By the putrid emanations of a few bushels of rotting potatoes or cabbages, or by putrid animal matters and melons, in cellars or store-rooms.
35. Q. What should be done in regard to sewerage matter if it is not completely washed away by flowing water? A. It should be led, in tubes, to porous grounds at least two hundred yards away from the house.
36. Q. What are essential for every person and every dwelling in order to secure purity and health? A. Pure water and fresh air, and means for applying these elements for cleansing.
37. Q. What allowance of water is needed by every individual who is to be kept perfectly clean in person, clothing and premises? A. From twenty to thirty gallons daily.
38. Q. How much fresh air should every person have supplied every minute? A. From twenty-five to one hundred cubic feet.
39. Q. What is necessary as well as ventilation for preserving the cleanliness and purity of a dwelling or any apartment? A. Sunlight.
40. Q. What habit and duty should be established by all? A. The habit and duty of revolting against foul or stagnant air.
41. Q. What study should be established by all? A. The study of available means for supplying fresh air.