Death-rate. Ideal death-rates. Death-rates in New York State. Accuracy of records. Effect of children. Death-rates of children. Small cities. Tuberculosis. Diphtheria, Influenza. Pneumonia. Old age 1-24 CHAPTER II LOCATION OF A HOUSE--SOIL AND SURROUNDINGS Damp soils. Location of house. Objections to trees. Space between houses. Composition of soils. Cancer and soil conditions. Topography. Effects of cultivation. Made ground. Water in soil. Drainage. Ground water 25-48 CHAPTER III CONSTRUCTION OF HOUSES AND BARNS WITH REFERENCE TO HEALTHFULNESS Shutting out soil air. Position of outfall for drains. Dampness of cellar walls. Use of tar or asphalt. Dry masonry for cellar walls. Damp courses. The cellar floor. Cellar ventilation. The old-fashioned privy. Cow stables. Use of concrete 49-67 CHAPTER IV VENTILATION Effects of bad air. Modifying circumstances. Dangers of polluted air. Effect of changes in air. Composition of air. Organic matter in air. Fresh-air inlet. Position of inlet. Foul-air outlet. Size of openings. Ventilation of stables. Cost of ventilation. Relation of heating to ventilation 68-89 CHAPTER V QUANTITY OF WATER REQUIRED FOR DOMESTIC USE Modern tendencies. Quantity of water needed per person. Quantity used in stables. Maximum rate of consumption. Variation in maximum rate. Fire stream requirements. Rain-water supply. Computation for rain-water storage. Computation for storage reservoir on brook. Deficiency from well supplies 90-107 CHAPTER VI SOURCES OF WATER-SUPPLY Underground waters. Ordinary dug well. Construction of dug wells. Deep wells. Springs. Extensions of springs. Supply from brooks. Storage reservoirs. Ponds or lakes. Pressure or head 108-130 CHAPTER VII QUALITY OF WATER Mineral matter. Loss of soap. Vegetable pollution. Animal pollution. Well water. Danger of polluted water 131-152 CHAPTER VIII WATER-WORKS CONSTRUCTION Methods of collection. Spring reservoirs. Stream supplies. Dams. Waste weirs. Gate house. Pipe lines. Pumping. Windmills. Hydraulic rams. Hot-air engines. Gas engines. Steam pumps. Air lifts. Tanks. Pressure tanks 153-188 CHAPTER IX PLUMBING Installation. Supply tank. Main supply pipe. Hot-water circulation. Kitchen sinks. Laundry tubs. Hot-water boiler. Water-back, wash-basin, bath-tub. Cost of plumbing installation. House drainage. Trap-vents. Water-closets 189-207 CHAPTER X SEWAGE DISPOSAL Definition of sewage. Stream pollution. Treatment of sewage on land. Surface application. Artificial sewage beds. Subsurface tile disposal. Automatic syphon. Sedimentation. Underdrains 208-232 CHAPTER XI