LIST OF ILLUSTRATIONS 



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The Great Nebula in Andromeda ... 



The Moon ... 



The Carboniferous Forest ... 



Primitive Insects in the Coal Forests 



Giant Reptile of the Jurassic Period 



The Earliest Bird ... 



Giant Salamander of the Coal Forest 



A Restoration of the Neanderthal Man 



PAGE 



Frontispiece 

 21 

 41 

 59 

 79 

 82 

 92 

 104 



