CONTENTS 



I. THE STUDY OF NATURE 



Definition and scope of Physiography . 1-23, p. I 



II. THE SUBSTANCE OF NATURE 



Propertiesof matterand measurement of space 24-48^. 15 



III. ENERGY, THE POWER OF NATURE 



Work Wave-motion Light Heat Electricity Mag- 

 netism 49-80, p. 30 



IV. THE EARTH A SPINNING BALL 



Figure of the Earth Results of rotation : polarity, 

 direction, latitude, longitude, time, terrestrial mag- 

 netism 81-99, p. 49 



V. THE EARTH A PLANET 



The Moon Tides Earth's orbit The Sun The Earth's 

 share of sun-heat . . . 100-125, p. 65 



VI. THE SOLAR SYSTEM AND UNIVERSE 



Planets Comets Meteors Stars Nebular and Meteor- 

 itic hypotheses .... 126-144, p. 84 



VII. THE ATMOSPHERE 



Air, composition and properties . 145-162, p. 98 



VIII. ATMOSPHERIC PHENOMENA 



Warmth in air Dew, mist, clouds, rain, snow and hail 

 Lightning Circulation of atmosphere Permanent 

 and seasonal winds . . . 163-185, p. ill 



IX. CLIMATES OF THE WORLD 



Configuration and climate Isotherms Isobars Warmth 

 and winds of January and July Climate of British 

 Islands Storms Weather forecasts 186-213, p. 131 



