TABLE OF CONTENTS 



CHAPTER I 



PAGE 



THE WEATHER . . 1 



How Forecasts are Made, 1 ; A Study of Weather Maps, 4 ; 

 Air Pressure, 10; The Barometer, 13; Winds, 19; Cyclones 

 and Anticyclones, 25 ; Local Storms, 34 ; The Moisture of the 

 Atmosphere, 42. 



CHAPTER II 



FIRE AND HEAT .......... 58 



Heat Its Uses and Control, 58; Why Fire Burns, 69; 

 Temperature. The Thermometer, 84 ; How Heat is Trans- 

 ferred, 93 ; Products and Materials of Combustion, 113 ; Meas- 

 uring Heat, 141. 



CHAPTER III 

 REFRIGERATION 147 



CHAPTER IV 



ARTIFICIAL LIGHTING 158 



Illuminating Gas, 160; Electric Lighting, 165; Colors 

 of Objects, 179; General Requirements in Artificial Lighting, 

 181. 



CHAPTER V 



THE SUPPLY AND USES OF WATER 186 



The Water Supply, 186 ; The Water Supply of Cities, 188 ; 

 Rural Water Supply, 197 ; Dams, 200 ; The Water Supply and 

 Disease, 206 ; Water as a Carrier of Sewage, 210 ; Purification 

 of Water, Municipal and Domestic, 218 ; Outline for the Study of 

 Local Water Supply, 223 ; Water Pressure, 225 ; Water Power, 

 233 ; Water Wheels, 238. 



ix 



