Chapter VII: Water Supply 125

Water Analysis--Pokegama Water--River Water--Artesian
Water--Medical Water--Organic Matter--Ammonia--Hardness
in Water--Iron in Water--Water Softening With Hydrated
Silicates--Chlorine--Polluted Water--Pollution of Wells--Safe
Distance in the Location of Wells--Surface Pollution of
Wells--Water Table--The Divining Rod--Selection of a Type of
Well--Flowing Wells--Construction of Wells--Dug Wells--Open
Wells--The Ideal Well--Coverings of Concrete--Artesian
Wells--Driven Wells--Bored Wells--Cleaning Wells--Gases in
Wells--Peculiarities of Wells--Breathing Well--Freezing
Wells--Pumps--The Lift Pump--The Force Pump--Tank Pump--Well
Pumps--Wooden Pump--Pumps for Driven Wells--Deep-well
Pumps--Tubular Well Cylinders--Chain Pumps--Rain Water
Cisterns--Filters--The Hydraulic Ram--Single-acting Hydraulic
Ram--The Double-acting Hydraulic Ram--Domestic Water-supply
Plants--Gravity Water Supply--Pressure-tank System of Water
Supply--The Pressure Tank--Power Water-supply Plants--Electric
Power Water Supply--The Water Lift.

CHAPTER VIII

SEWAGE DISPOSAL 168

The Septic Tank--The Septic Tank With a Sand-bed Filter--The Septic
Tank and Anaerobic Filter--Limit of Efficiency.

CHAPTER IX

COAL 182

Oxidation of Hydrocarbons--Graphitic Anthracite--Cannel
Coal--Lignite--Peat--Wood--Charcoal--Coke--Gas-coke--Briquettes
--Comparative Value of Coal to Other Fuels--Price of Coal.

CHAPTER X

ATMOSPHERIC HUMIDITY 196

Humidity of the Air--Relative Humidity--The Hygrometer--The
Hygrodeik--Dial Hygrometers--The Swiss Cottage
“Barometer”--Dew-point--To Determine the Dew-point--Frost
Prediction--Prevention of Frost--Humidifying Apparatus.

CHAPTER XI

VENTILATION 219

Quantity of Air Discharged by a Flue--Cost of Ventilation--The
Wolpert Air Tester--Pneumatic Temperature Regulation--Mechanical
Ventilation--The Plenum Method--Ventilation Apparatus--Air
Conditioning--Humidifying Plants--Vaporization as a Cooling
Agent--Air-cooling Plants--Humidity Control.

CHAPTER XII

GASEOUS AND LIQUID FUELS 250

Gaseous and Liquid Fuels--Coal Gas--All-oil Water Gas--Pintsch
Gas--Blau Gas--Water Gas--Measurement of Gas--Gas Meters How
to Read the Index--Prepayment Meters--Gas-service Rules--Gas
Ranges--Lighting and Heating with Gasoline--Gasoline--Kerosene--The
Cold-process Gas Machine--The Hollow-wire System of Gasoline
Lighting and Heating--Mantle Gas Lamps--Open-flame Gas Burners--The
Inverted-mantle Gasoline Lamp--Portable Gasoline Lamp--Central
Generator Plants--Central-generator Gas Lamps--Boulevard
Lamps--Gasoline Sad Irons--Alcohol Sad Irons--Alcohol Table
Stoves--Danger from Gaseous and Liquid Fuels--Acetylene-gas
Machine--Types of Acetylene Generators--Gas Lighters--Acetylene
Stoves.